SERVICE MANAUL
Wall Mounted Type
DC Inverter SUPER MATCH
Model No. 1U12BE2ERA
HSU12VHGL-W
WARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or
Repair the product or products dealt with in this service information by anyone else could result in serious injury or death
2014 (Qingdao Haier Air Conditioner General corp. , Ltd)
All rights reserved. Unauthorized copying and distribution is a violation of law
Haier Group
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Version：V1
Date：2014-05-25
Contents
Contents
1. Introduction ............................................................................................1
2. Specifications.........................................................................................7
3. Sensors list ............................................................................................8
4. Piping diagrams .....................................................................................9
5. Operation range ....................................................................................10
6. Printed Circuit Board Connector Wiring Diagram .................................11
7. Functions and Control...........................................................................16
8. Dimensional drawings........................................................................... 30
9. Conter of gravity ................................................................................... 30
10. Installations .........................................................................................31
11. Service Diagnosis ...............................................................................35
12. Performance and cerves diagrams.....................................................52
13. Sound level .........................................................................................60
14. Circuit diagrams ..................................................................................61
Domestic air conditioner
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Introduction
1 Introduction
1.1 Model name explanation
1
U
1
2
B
E
2
E
R
A
Apply toT1; 208~230V60HZ/1ph
DC inverter
Heat pump & R410A refrigerant
Version number
Europe
Platform of outdoor units: B (B platform)
Nominal cooling capacity (12000BTU/h)
Type of outdoor unit : U (normal type)
The maximum combination number
1
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Domestic air conditioner
Introduction
1.2 Safety Cautions
Be sure to read the following safety cautions before conducting repair work.
The caution items are classified into “Warning” and “Caution”. The “Warning” items are especially important
since they can lead to death or serious injury if they are not followed closely. The “Caution” items can also
lead
to serious accidents under some conditions if they are not followed. Therefore, be sure to observe all the
safety
caution items described below.
About the pictograms
△ This symbol indicates an item for which caution must be exercised.
The pictogram shows the item to which attention must be paid.
○ This symbol indicates a prohibited action.
The prohibited item or action is shown inside or near the symbol.
● This symbol indicates an action that must be taken, or an instruction.
The instruction is shown inside or near the symbol.
After the repair work is complete, be sure to conduct a test operation to ensure that the equipment operates
Normally, and explain the cautions for operating the product to the customer.
1.2.1 Caution in Repair
Warning
Be sure to disconnect the power cable plug from the plug socket before disassembling the equipment for
a repair.
Working on the equipment that is connected to a power supply can cause an electrical shook.
If it is necessary to supply power to the equipment to conduct the repair or inspecting the circuits, do not
touch any electrically charged sections of the equipment.
If the refrigerant gas discharges during the repair work, do not touch the discharging refrigerant gas .The
refrigerant gas can cause frostbite.
When disconnecting the suction or discharge pipe of the compressor at the welded section, release the
refrigerant gas completely at a well-ventilated place first.
If there is a gas remaining inside the compressor , the refrigerant gas or cooling machine oil discharges
when the pipe is disconnected, and it can cause injury.
If the refrigerant gas leaks during the repair work, ventilate the area. The refrigerant gas can generate
toxic gases when it contacts flames.
The step-up capacitor supplies high-voltage electricity to the electrical components of the outdoor unit.
Be sure to discharge the capacitor completely before conducting repair work . A charged capacitor can
cause an electrical shock.
Do not start or stop the air conditioner operation by plugging or unplugging the power cable plug.
Plugging or unplugging the power cable plug to operate the equipment can cause an electrical shock or
fire.
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Domestic air conditioner
Introduction
Warning
Do not repair the electrical components with wet hands . Working on the equipment with wet hands can
cause an electrical shock
Do not clean the air conditioner by splashing water. Washing the unit with water can cause an electrical
shock.
Be sure to provide the grounding when repairing the equipment in a humid or wet place, to avoid
electrical
shock.
Be sure to turn off the power switch and unplug the power cable when cleaning the equipment. The
internal fan rotates at a high speed, and cause injury.
Do not tilt the unit when removing it. The water inside the unit can spill and wet the furniture and floor.
Be sure to check that the cooling cycle section has cooled down sufficiently before conducting repair
work. Working on the unit when the cooling cycle section is hot can cause burns.
Use the welder in a well-ventilated place. Using the welder in an enclosed room can cause oxygen
deficiency.
1.2.2 Cautions Regarding Products after Repair
Warning
Be sure to use parts listed in the service parts list of the applicable model and appropriate tools to
conduct repair work. Never attempt to modify the equipment. The use of inappropriate parts or tools can
cause an electrical shock, excessive heat generation or fire.
When relocating the equipment, make sure that the new installation site has sufficient strength to
withstand the weight of the equipment.
If the installation site does not have sufficient strength and if the installation work is not conducted
securely, the equipment can fall and cause injury.
Be sure to install the product correctly by using the provided standard installation frame.
For
Incorrect use of the installation frame and improper installation can cause the equipment to fall, resulting
integral
in injury.
units only
Be sure to install the product securely in the installation frame mounted on a window frame.
If the unit is not securely mounted, it can fall and cause injury.
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For
integral
units only
Domestic air conditioner
Introduction
Warning
Be sure to use an exclusive power circuit for the equipment, and follow the technical standards related to
the electrical equipment, the internal wiring regulations and the instruction manual for installation when
conducting electrical work.
Insufficient power circuit capacity and improper electrical work can cause an electrical shock or fire.
Be sure to use the specified cable to connect between the indoor and outdoor units. Make the
connections securely and route the cable properly so that there is no force pulling the cable at the
connection terminals.
Improper connections can cause excessive heat generation or fire.
When connecting the cable between the indoor and outdoor units, make sure that the terminal cover
does
not lift off or dismount because of the cable.
If the cover is not mounted properly, the terminal connection section can cause an electrical shock,
excessive heat generation or fire.
Do not damage or modify the power cable.
Damaged or modified power cable can cause an electrical shock or fire. Placing heavy items on the
power cable, and heating or pulling the power cable can damage the cable.
Do not mix air or gas other than the specified refrigerant (R-410A / R22) in the refrigerant system.
If air enters the cooling system, an excessively high pressure results, causing equipment damage
and injury.
If the refrigerant gas leaks, be sure to locate the leak and repair it before charging the refrigerant. After
.
charging refrigerant, make sure that there is no refrigerant leak.
If the leak cannot be located and the repair work must be stopped, be sure to perform pump-down and
close the service valve, to prevent the refrigerant gas from leaking into the room. The refrigerant gas
itself
is harmless, but it can generate toxic gases when it contacts flames, such as fan and other heaters,
stoves and ranges.
When replacing the coin battery in the remote controller, be sure to disposed of the old battery to prevent
children from swallowing it.
If a child swallows the coin battery, see a doctor immediately.
Caution
Installation of a leakage breaker is necessary in some cases depending on the conditions of the
installation site, to prevent electrical shocks.
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Domestic air conditioner
Introduction
Do not install the equipment in a place where there is a possibility of combustible gas leaks.
If a combustible gas leaks and remains around the unit, it can cause a fire.
Be sure to install the packing and seal on the installation frame properly. If the packing and seal are not
installed properly, water can enter the room and wet the furniture and floor.
1.2.3 Inspection after Repair
Warning
Check to make sure that the power cable plug is not dirty or loose, then insert the plug into a power outlet
all the way.
If the plug has dust or loose connection, it can cause an electrical shock or fire.
If the power cable and lead wires have scratches or deteriorated, be sure to replace them.
Damaged cable and wires can cause an electrical shock, excessive heat generation or fire.
Warning
Do not use a joined power cable or extension cable, or share the same power outlet with other electrical
appliances since it can cause an electrical shock, excessive heat generation or fire.
Caution
Check to see if the parts and wires are mounted and connected properly, and if the connections at the
soldered or crimped terminals are secure. Improper installation and connections can cause excessive
heat generation, fire or an electrical shock.
If the installation platform or frame has corroded, replace it. Corroded installation platform or frame can
cause the unit to fall, resulting in injury.
5
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Domestic air conditioner
Introduction
Check the grounding, and repair it if the equipment is not properly grounded. Improper grounding can
cause an electrical shock.
Be sure to measure the insulation resistance after the repair, and make sure that the resistance is 1 M
ohm or higher.
Faulty insulation can cause an electrical shock.
Be sure to check the drainage of the indoor unit after the repair.
Faulty drainage can cause the water to enter the room and wet the furniture and floor.
1.2.4 Using Icons
Icons are used to attract the attention of the reader to specific information. The meaning of each icon is described in
the table below:
1.2.5 Using Icons List
Icon
Type of Information
Note
Note
Description
A “note” provides information that is not indispensable, but may
nevertheless be valuable to the reader, such as tips and tricks.
A “caution” is used when there is danger that the reader, through
Caution
Caution
incorrect manipulation, may damage equipment, loose data, get
an
unexpected result or has to restart (part of) a procedure.
Warning
Warning
A “warning” is used when there is danger of personal injury.
A “reference” guides the reader to other places in this binder or in
Reference
this manual, where he/she will find additional information on a
specific topic.
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Domestic air conditioner
Specification
2 Specifications
NOMINAL DISTRIBUTION SYSTEM VOLTAGE
Phase
/
1
Frequency
Hz
60
Voltage
V
230
NOMINAL CAPACITY and NOMINAL INPUT
cooling
Capacity rated
12000(4780-13300)
Btu/h
Power Consumption(Rated)
EER / COP
Btu
Moisture Removal
13500(5120-13990)
4027
Btu /Btu
Annual energy consumption
heating
4095
37.54
Btuh
37.54
706449.6
in³/h
3801859
40.6 *10
-9
TECHNICAL SPECIFICATIONS-UNIT
Dimensions
H*W*D
in
2.56×0.80×1.77
H*W*D
in
3.02×1.1 5×2.03
Weight
/
lb
68.64
Gross weight
/
lb
75..24
Packaged
Dimensions
Sound level
Sound peessure
dB(A)
Sound power
dB(A)
62
62
/
/
ELECTRICAL SPECIFICATIONS
cooling
heating
Nominal running current
A
5.2
5.7
Maximum running current
A
6.2
6.4
Starting current
A
1.2
1.2
cooling
heating
TECHNICAL SPECIFICATIONS-PARTS
Type
Rotary Compressor
Model
Compressor
Motor output
5RS092ZKD21
Btu
700
Oil type
Oil charge volume
FV50S or equivalent
gal
0.07
Type
Fan
Motor output
Axial fan
Btu
Air flow rate(high)
in³/h
Speed(high/low)
rpm
Heat
Type
exchanger
Row*stage*fitch
136.5
11 18 .6
900/300
ML fin-φ9.52HI-HX tube
2*20*1.32
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Domestic air conditioner
Specification
TECHNICAL SPECIFICATIONS-OTHERS
Refrigerant type
R410a
Refrigerant charge
Refrigerant
circuit
lb
Maximum allowable distance
between indoor an outdoor
Maximum allowable level difference
in
49.2
in
32.8
Refrigerant control
Piping connections
(external diameter)
2.64
Capillary
liquid
in
Φ0.02
gas
in
Φ0.03
drain
in
Heat insulation type
Φ0.05
Both liquid and Gas pipes
Max. piping Length
in
49.2
Max. vertical Difference
in
32.8
Chargeless
in
32.8
Amount of Additional Charge of Refrigerant
g/in
Intemational Protection degree
65.6
IP 24
Note: the data are based on the conditions shown in the table below
cooling
Indoor:
Outdoo r:
heating
80.6° F DB/66.2° F W B
95° F DB/75.2°F W B
Conversation formulae
Piping length
Indoor:68°F DB
Ou t door : 44.6° F DB/ 42.8° F WB
Kcal/h= KW×860
Btu/h= KW×3414
16.4in
cfm=m³/min×35.3
3．Sensors list
type
Description
Ambient sensor
Its used for detecting temperature of outdoor side
Suction sensor
Qty
1
Its used for detecting suction pipe temperature of compressor to
adjust gas flowing
1
Defrosting sensor
Its used for controlling outdoor defrosting at heating mode
1
Descharging sensor
Its used for compressor in case of over-heat
1
8
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Domestic air conditioner
Pinping diagrams
4．Pinping diagrams
9
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Domestic air conditioner
Operation range
5．Operation range
122
114.8
F
104 109.4
86
68
64.4
60.8
50
68
73.4
89.6
86
F
77 75.2
68
°F
59
50
41
32
23
19.4
14
50
86
68
°F
16.4in
in
10
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Domestic air conditioner
Wiring diagrams
6. Printed Circuit Board Connector Wiring Diagram
Connectors
PCB (1) Control PCB
series
PCB connector
Connect with load
1
CN1
2
CN2
3
CN3
Connector for ground
4
CN4
Connector for communicate between indoor and outdoor unit
5
CN8
6
CN9
7
CN10
Connector for four way valve coil
8
CN16
Connector for electric expansion valves
9
CN17
10
CN18
11
CN19
12
CN20
13
CN21
Connector for fan motor
14
CN22
Connector for DC POWER 15Vand 5V to the module board
15
CN23
16
CN24
17
CN26
Connector for power N and L
Connector for CN2,CN1 on the module board
Connector for thermistors
Connector for communicate between the control board and the module
board
Connector to P and N of the module board
Note: 09K series needn’t connect with CN16 and CN18
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Domestic air conditioner
Wiring diagrams
PCB (2) Module PCB
series
PCB connector
1
P (CN1)
2
N (CN5)
3
LO (CN6)
4
LI (CN7)
5
CN2
6
CN3
7
CN4
8
CN10
9
CN11
Connect with load
Connector for capacitance board
Connector for reactor
Connector for the U, V, W wire of the compressor
Connector for the DC power 5V and 15V form the control PCB
Connector for communicate between the control board and the module
board
Notes: Other Designations
PCB (1) (Control PCB)
1) FUSE 1, (25A, 250VAC); FUSE 2(1A, 250VAC)
2) LED 1 Keep light representative normal, if keep flash interval representative trouble Alarm
3) RV1, RV2, RV3 Varistor
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Domestic air conditioner
Wiring diagrams
PCB (1)
CN26 CN24
CN23 CN22
CN21
CN17
CN18
CN19
CN20
CN4
CN16
CN10
CN3
CN1
CN9
CN8
CN2
CN5
CN6
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Domestic air conditioner
Wirin
ng diagramss
PCB (2)
CN6
6
CN7
CN1
11
CN1
10
CN5
CN4
CN3
CN2
CN1
14
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Dom
mestic air co
onditioner
Functions and control
Wiring diagrams
OUTDOOR WIRING DIAGRAM
WARNING
MODULE BOARD
CN9 CN8
DON'T TOUCH CAPACITOR, EVEN AFTER
PLUG-OFF ( DANGER OF ELECTRIC SHOCK)
AC-N AC-L
R W
CN1
W
CN7
V
U
CN4CN3CN2
CN5
PFC REACTOR
BL
BL(OR W)
to double-way air
exchange motor
BL(OR W)
CN1
BR(OR B)
BR
(OR B)
CN3
CN2
The capacitor retains high
voltage even after the plug-off.
For your safety, be sure to wait
at least 5 minutes. after plug
off and use a tester to confirm
the voltage between connector P
and N(on module board) is less
than DC 10V before start
servicing.
B
CN11 CN10
OR
CN26
CN22
PE
CN24
TO INDOOR UNIT
CN23
DC FAN MOTOR
CN6
CAUTION
MAIN CONTROL BOARD
R
AC-N AC-L
CN8 CN9
CN13
POWER
to single-way
air exchange motor
AC FAN MOTOR
ELECTRIC
EXPANSION VALVE
Electric
Heating Cable
B：BLACK
R：RED
BR：BROWN
BL：BLUE
4-WAY VALVE
W：WHITE
Y/G：YELLOW/GREEN
Remark：the dotted parts are
OR：ORANGE
Description
LED1 Flash
Times
Outdoor EEPROM error
The protection of IPM
Overcurrent protection
of AC electricity
Communication fault
between the IPM and CBD
Over pressure or Overheat
protection for the compressor
Power voltage is too high or low
Overheat protection for
exhaust temperature
Frost-removing temperature
sensor failure
Ambient temperature sensor failure
1
2
Exhaust temperature sensor failure
Deviate from the normal
for the compressor
Loop of the station detect error
Overcurrent of the compressor
Overcurrent protection for
single-phase of the compressor
optional for different unit.
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COMPRESSOR DISCHARGE
BL BL
TEMP.SENSOR
CN36
CN20 CN19 CN18 CN17
TEMP.SENSOR
CN16
DEFROST
TERMINAL
BLOCK
CN11
CN15 CN14
SUCTION TEMP.SENSOR
CN10
FUSE2
AMBIENT TEMP.SENSOR
3.15A/250VAC
CN21
CN4
3
4
5
6
8
10
12
13
18
19
24
25
Domestic air conditioner
Functions and control
7. Functions and Control
7.1 Main functions and control specification
7.1.1 The operation frequency of outdoor unit and its control
7.1.1.1 The operation frequency control of compressor
The operation frequency scope of compressor：
Mode
Minimun operation frequency
Maximun operation frequency
Heating
36Hz
90 Hz
Refrigeration
36Hz
80 Hz
7.1.1.2 The starting of compressor
When the compressor is started for the first time, it must be kept under the conditions of
58Hz,88Hz for one minute (the overheating protection of the outdoor unit air-blowing temperature,
immediately decrease the frequency when the compressor is overflowing and releasing the pressure)，
then it can be operated towards the target frequency. When the machine runs normally, there’s no
such process. After starting the compressor for operation, the compressor should run according to the
calculated frequency, and every determined frequency for protection should be prior to the calculated
frequency.
7.1.1.3 The speeds of increasing or decreasing the frequency of the compressor
The speed of increasing or decreasing the frequency rapidly 1 -----------1HZ/second
The speed of increasing or decreasing the frequency slowly 2 -----------1HZ/10seconds
7.1.1.4 The calculation of the compressor’s frequency
1）The minimum/maximum frequency limitation
A．While cooling: F-MAX-r is the maximum operation frequency of the compressor; F-MIN-r is the
minimum operation frequency of the compressor.
B．While heating: F-MAX-d is the maximum operation frequency of the compressor; F-MIN-d is the
minimum operation frequency of the compressor.
2）The frequency limitation which is affected by the environment temperature.
(Wh_c= environment temperature)
Heating mode:
Serial No.
Temperature scope
Frequency limitation
1
Wh_F<10.4
2
Wh_F<17.6
Max_hz8
Max_hz7
90HZ
3
Wh_F<28.4
Max_hz4
90HZ
4
Wh_F<41
5
Wh_F<50
6
Wh_F<62.6
7
Wh_F<68
Max_hz6
55HZ
8
Wh_F≧68
Max_hz3
45HZ
Max_hz5
Max_hz1
Max_hz2
90HZ
85HZ
80HZ
70HZ
Remarks: The above are the maximum frequency limitations of the complete appliance which are
affected by the environment, and they have nothing to do with the ability of the indoor unit.
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Domestic air conditioner
Functions and control
Cooling/dehumidification mode:
Serial No.
Temperature scope
Frequency limitation
1
Wh_F<82.4
Max_hz1
46HZ
2
Wh_F<89.6
Max_hz2
72HZ
3
Wh_F<104
Max_hz3
80HZ
4
Wh_F<118.4
5
Wh_F≧118.4
Max_hz4
Max_hz5
65HZ
46HZ
Remarks: the above are not only the maximum frequency limitations of the complete appliance
which are affected by the environment, but also the maximum ability limitation of the system. When the
starting ability is not the maximum, its maximum frequency limitation is calculated by the following
equations:
The frequency limitation which is affected by the temperature and under the condition of actual
ability＝the actual running system ability*the maximum frequency which is limited by the temperature
and under the condition of maximum ability/the maximum designing ability of the system
ΔT=∑（ΔTi*Pi）/∑Pi
(ΔTi=|Tst_i the setting temperature - Tnh_i the indoor environment
temperature|; Pi＝i the ability of the indoor unit)
Cooling/dehumidification mode:
<1
＝1
＝2
＝3
>=4
50%
80%
120%
150%
160%
<1
＝1
＝2
＝3
>=4
50%
70%
120%
150%
170%
ΔT
The percentage of the
rated frequency P
Heating mode：
ΔT
The percentage of the
rated frequency P
The indoor setting
airflow speed
The percentage of the
rated frequency Ki
Breeze
Low
Medium
High
Strong
Quiet
60％
75%
85%
100%
120%
60%
Healthy
airflow
60%
K=∑(Ki*Pi)/∑Pi
The calculation of the actual output frequency:
when there is no healthy airflow: F= F-ED-*(rated frequency)×P×K
When the healthy airflow has been set: F =F-ED-*×P×K（airflow speed）×K（healthy airflow）
Notes:
When cooling, it is needed to satisfy
F-MIN-d(compressor’s Min_hz)< F<F-MAX-d(compressor’s Max_hz)
When heating, it is needed to satisfy
F-MIN-r (compressor’s Min_hz)< F<F-MAX-r (compressor’s Max_hz)
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Domestic air conditioner
Functions and control
7.1.2 The outdoor fan control (Exchange fan)
When the fan is changed among every airflow speed (including stop blowing), in order to avoid the
airflow speed from skipping frequently, it must be kept under each mode for over 30 seconds, and then
it can be changed to another mode (when cooling, the time is changed to 15 seconds).
7.1.2.1 The outdoor fan control when cooling or dehumidifying
After the compressor is started for 5 seconds, the outdoor fan is started at the medium speed at
first, after 30 seconds, it begins to control the airflow speed according to the temperature conditions of
the outdoor environment.
The temperature of the
The temperature of the outdoor
outdoor air（Ta）
coil（Te）
Ta≥86°F
——
High
——
Keeping the speed
75.2°F ≤Ta<78.8°F
——
Medium
73.4°F ≤Ta<75.2°F
——
Keeping the speed
50°F≤Ta<73.4°F
——
Low
78.8°F ≤Ta<86°F
——
Keeping the speed
59°F≤Te
Low
59°F>Te
Stop
41°F ≤Ta<50°F
Ta<41°F
Airflow speed
7.1.2.2 The outdoor fan control when heating
The temperature of the outdoor air (Ta)
Airflow speed
Low
Ta≥71.6°F
66.2°F ≤Ta<71.6°F
Keeping the speed
60.8°F≤Ta<71.6°F
Medium
57.2°F ≤Ta<60.8°F
Keeping the speed
High
Ta< 57.2°F
7.1.3 Four way control
For the details of defrosting four-way valve control, see the defrosting process.
Four way working in other ways:
Under the mode of heating, open the four-way valve, when the compressor is not started or
changed to non-heating mode, make sure the compressor is stoped for 2 minutes, and then close the
four-way valve.
7.1.4 Protection function
7.1.4.1 TTC high temperature-preventing protection
Once the machine is started, it can run TTC(air-blowing temp) overheating protection of
air-blowing, but air-blowing sensor malfunction must alarm after 4 minutes during which the
compressor is started (during the course of self-detection, there’s no such limitation)
Sensor detection methods: 100 times (one cycle of procedure run is one time, and about 5ms,
detection method for each time: continuously sampling for 8 times, then order them and take the mean
value of the middle 2 values), take the mean value.
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Domestic air conditioner
Functions and control
TTC（°F）
Abnormal stop
230
Decreasing the frequency rapidly（1HZ/second）
215.6
Decreasing the frequency slowly (1HZ/10seconds)
208.4
The frequency doesn’t change.
199.4
Increasing the frequency (1HZ/10second)
194
Increasing the frequency（1HZ/1second）
TTC>=230°F lasts for 20 seconds. Overheating protection of air-blowing, alarm malfunction to the
indoor, others don’t last.
7.1.4.2 TC high temperature-preventing control of the indoor heating unit：
Tpg_indoor is the highest value of the effective indoor unit (start it and it is in accord with the
running state). TC=indoor coil temp.
The indoor heat exchanger sensor tests the temperature of the indoor heat exchanger. If the
temperature is higher than 131°F, decrease the rotate speed of the compressor and do the high
temperature-preventing protection of the indoor heat exchanger; if the temperature of the indoor heat
exchanger is lower than 116.6°F, recover to the normal control.
TC(°F)
The compressor stops
Fgh_t1 149°F
Fgh_t1－2
Fgh_t2－2
N Decreasing the frequency rapidly
Fgh_t2 138.2°F
P Decreasing the frequency slowly
Fgh_t3
131°F
Fgh_t3－2
Fgh_t4—2
Q Prohibiting increasing the frequency Fgh_t4
123.8°F
R Increasing slowly
116.6°F
Fgh_t5
Fgh_t5—2
Normal
N：Decreasing at the speed of 1HZ/1 second
P：Decreasing at the speed of 1Hz/10 seconds
Q：Continue to keep the last-time instruction cycle
R：Increasing at the speed of 1Hz/10seconds
Remarks: the outdoor unit
7.1.4.3 The control of preventing the over current of the compressor:
During the starting process of the compressor, if the current of the compressor is greater than 11A for
3 seconds, stop the compressor and alarm, after 3 minutes, start it again, if such state appears 3
times in 20 minutes, stop the compressor and alarm, and confirm the malfunction. Then continue to
run it only after the power is off.
During the starting process of the compressor, if the AC current is greater than 8.5A, the frequency of
the compressor decreases at the speed of 1HZ/second.
During the starting process of the compressor, if the AC current is greater than 8A, the frequency of
the compressor decreases at the speed of 0.1HZ/second.
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Domestic air conditioner
Functions and control
During the starting process of the compressor, if the AC current is greater than 7A, the frequency of
the compressor increases at the prohibited speed.
During the starting process of the compressor, if the AC current is greater than 6.5A, the frequency of
the compressor increases at the speed of no faster than 0.1HZ/second.
7.1.4.4 The protection function of AC current:
During the starting process of the compressor, if the AC current is greater than 12A for 3 seconds,
stop the compressor and alarm, after 3 minutes, start it again, if such state appears 3 times in 20
minutes, stop the compressor and alarm, and confirm the malfunction. Then continue to run it only
after the the power is off.
During the starting process of the compressor, if the AC current is greater than 9A, the frequency of
the compressor decreases at the speed of 1HZ/second.
During the starting process of the compressor, if the AC current is greater than 8A, the frequency of
the compressor decreases at the speed of 0.1HZ/second.
During the starting process of the compressor, if the AC current is greater than 7A, the frequency of
the compressor increases at the prohibited speed.
During the starting process of the compressor, if the AC current is greater than 6.5A, the frequency of
the compressor increases at the speed of no faster than 0.1HZ/second.
Remarks: when the outdoor temperature is high, there’s compensation for AC current protection.
(1) When the outdoor environment temperature is higher than 104°F, AC current protection value
decreases by 1A.
(2) When the outdoor environment temperature is higher than122°F, AC current protection value
decreases by 2.5A.
7.1.4.5 Anti-freezing protection of the indoor heat exchanger
When cooling/heating, prevent freezing.
Tpg_indoor is the minimum value of the effective indoor unit (start it and it is in accord with the running
state).
51.8°F //ice_temp_3+5
ice_temp_3+3
48.2°F
Increasing slowly
46.4°F //ice_temp_3+2
Keeping the frequency
ice_temp_3
ice_temp_2
44.6°F
41°F
ice_temp_1 37.4°F
32°F
44.6°F
Decreasing slowly
Decreasing rapidly ice_temp_1
Stop
When Tpg_indoor〈 ice_temp_33.8°F, the frequency of the compressor decreases at the speed of
1HZ/1second.
When Tpg_indoor〈 ice_temp_35.6°F , the frequency of the compressor decreases at the speed of
1HZ/10seconds.
When Tpg_indoor begins to rise again, and ice_temp_2≤Tpg_indoor≤ ice_temp_37.4 °F, the frequency
of the compressor doesn’t change.
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Domestic air conditioner
Functions and control
When ice_temp_3〈Tpg_indoor〈ice_temp_3+37.4°F , the frequency of the compressor increases at the
speed of 1HZ/10seconds.
For example, Tpg_indoor≤32°F last for 2 minutes, and then the outdoor unit will stop, and report
underload malfunction, but don’t send malfunction report to the indoor.
The compressor stops for more than 3 minutes, Tpg_indoor> ice_temp_3+35.6°F, the compressor
recovers.
7.1.4.6 The frequency limitation of modification rate
In the field which is controlled by high frequency, if the modification rate is not high enough, the
control-driven chip will enter into weak magnetic control, this will help to relieve the problem of
modification rate. If during the course of weak magnetic control, the modification rate is still not high
enough, enter into the control of decreasing frequency until the alarm of modification rate is relieved.
7.1.4.7 Temperature protection of the outdoor cooling coil
When the defrosting temperature and the sensor’s temperature are higher than 149°F , the frequency of
the compressor decreases 1hz/10seconds. Keep the frequency until it decreases to the lowest
frequency. When the temperatures are lower than 149°F and higher than 140°F , keep the frequency of
the compressor. When the temperatures are lower than 140°F , relieve the defrosting temperature
protection.
7.1.5 The control of the outdoor Electronic expansion valve (EEV)
(09K series have no this function)
In cooling mode, the EEV opening range is 90~480 steps. The EEV opening is 5 steps when unit is off.
In heating mode, the EEV opening range is 60~480 steps. The EEV opening is 45 steps when unit is
off.
After outdoor unit is off, the EEV opening keep the current on for 5 s, then open the EEV completely for
2 minutes, then become 5 steps (cooling) or 45 steps (heating).
The EEV opening will increase if SH (superheat degree) >0 while decrease if SH<0.
Adjust frequency:
If |SH|=0, 60s/ 1 step
If |SH|≥3,and △SH=0, 10s/ 1 step.
If 3≥|SH|≥0, 30s/ 1 step.
△SH= current SH- last SH
SH= Ts (suction temp)-Tc1 (indoor coil temp)-Tsh (fixed data, depend on different models, -1~2)
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Domestic air conditioner
Functions and control
7.2 Value of Thermistor
Ambient Sensor, Defrosting Sensor, Pipe sensor
R77°F=10KΩ±3% B77°F/122°F=3700K±3%
Temp.(( °F ))
Max.(K )
Normal(K )
Min.(K )
-22
165.2170
147.9497
132.3678
Tolerance(°F)
28.51
35.15
-20.2
155.5754
139.5600
125.0806
28.53
35.13
-18.4
146.5609
131.7022
118.2434
28.56
35.11
-16.6
138.1285
124.3392
111.8256
28.60
35.08
-14.8
130.2371
117.4366
105.7989
28.63
35.06
-13
-11.2
122.8484
115.9272
110.9627
104.8882
100.1367
94.8149
28.67
28.71
35.04
35.01
-9.4
109.4410
99.1858
89.8106
28.74
34.99
-7.6
103.3598
93.8305
85.1031
28.76
34.95
-5.8
97.6556
88.7989
80.6728
28.80
34.93
-4
92.3028
84.0695
76.5017
28.83
34.92
-2.2
87.2775
79.6222
72.5729
28.87
34.88
-0.4
82.5577
75.4384
68.8710
28.90
34.86
-1.4
78.1230
71.5010
65.3815
28.94
34.83
-3.2
73.9543
67.7939
62.0907
28.98
34.79
29.01
34.77
-5
70.0342
64.3023
58.9863
-6.8
66.3463
61.0123
56.0565
29.05
34.74
-8.6
62.8755
57.9110
53.2905
29.08
34.72
-10.4
59.6076
54.9866
50.6781
29.12
34.68
-12.2
56.5296
52.2278
48.2099
29.16
34.65
-14
53.6294
49.6244
45.8771
29.19
34.63
15.8
50.8956
47.1666
43.6714
29.23
34.59
17.6
48.3178
44.8454
41.5851
29.28
34.56
19.4
45.8860
42.6525
39.6112
29.32
34.52
21.2
43.5912
40.5800
37.7429
29.35
34.50
23
41.4249
38.6207
35.9739
29.39
34.47
24.8
39.3792
36.7676
34.2983
29.43
34.43
26.6
37.4465
35.0144
32.7108
29.46
34.39
28.4
35.6202
33.3552
31.2062
29.52
34.36
30.2
33.8936
31.7844
29.7796
29.55
34.32
32
33.8
32.2608
30.7162
30.2968
28.8875
22
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28.4267
27.1431
29.59
29.62
34.30
34.27
Domestic air conditioner
Functions and Control
35.6
29.2545
27.5519
25.9250
29.68
34.23
37.4
27.8708
26.2858
24.7686
29.71
34.20
39.2
26.5605
25.0851
23.6704
29.75
34.16
41
25.3193
23.9462
22.6273
29.79
34.12
42.8
24.1432
22.8656
21.6361
29.84
34.09
44.6
23.0284
21.8398
20.6939
29.88
34.05
46.4
21.9714
20.8659
19.7982
29.93
34.02
48.2
20.9688
19.9409
18.9463
29.97
33.96
50
20.0176
19.0621
18.1358
30.00
33.93
51.8
19.1149
18.2270
17.3646
30.06
33.89
53.6
18.2580
17.4331
16.6305
30.09
33.85
55.4
17.4442
16.6782
15.9315
30.15
33.82
57.2
16.6711
15.9601
15.2657
30.18
33.78
59
15.9366
15.2770
14.6315
30.24
33.73
60.8
15.2385
14.6268
14.0271
30.27
33.69
62.6
14.5748
14.0079
13.4510
30.33
33.66
64.4
13.9436
13.4185
12.9017
30.36
33.62
66.2
68
13.3431
12.7718
12.8572
12.3778
12.3223
11.8780
30.42
30.45
33.57
33.53
69.8
12.2280
11.8126
11.4011
30.51
33.49
71.6
11.7102
11.3267
10.9459
30.54
33.44
73.4
11.2172
10.8634
10.5114
30.60
33.40
75.2
77
10.7475
10.3000
10.4216
10.0964
10.0000
9.7000
30.65
30.65
33.35
33.35
78.8
9.8975
9.5974
9.2980
30.63
33.37
80.6
9.5129
9.2132
8.9148
30.56
33.34
82.4
9.1454
8.8465
8.5496
30.49
33.49
84.2
8.7942
8.4964
8.2013
30.43
33.55
86
8.4583
8.1621
7.8691
30.36
33.62
87.8
8.1371
7.8428
7.5522
30.29
33.67
89.6
7.8299
7.5377
7.2498
30.24
33.75
91.4
7.5359
7.2461
6.9611
30.16
33.80
93.2
7.2546
6.9673
6.6854
30.09
33.87
95
6.9852
6.7008
6.4222
30.02
33.93
96.8
6.7273
6.4459
6.1707
29.97
34.00
98.6
6.4803
6.2021
5.9304
29.89
34.05
100.4
6.2437
5.9687
5.7007
29.82
34.12
102.2
6.0170
5.7454
5.4812
29.75
34.20
104
5.7997
5.5316
5.2712
29.68
34.25
105.8
5.5914
5.3269
5.0704
29.61
34.32
107.6
5.3916
5.1308
4.8783
29.53
34.39
109.4
5.2001
4.9430
4.6944
29.46
34.45
111.2
5.0163
4.7630
4.5185
29.39
34.52
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Domestic air conditioner
Functions and Control
113
4.8400
4.5905
4.3500
29.32
34.59
114.8
4.6708
4.4252
4.1887
29.25
34.65
116.6
4.5083
4.2666
4.0342
29.17
34.72
118.4
4.3524
4.1145
3.8862
29.10
34.79
120.2
122
4.2026
4.0588
3.9686
3.7443
3.8287
3.6084
29.03
28.94
34.86
34.92
123.8
3.9206
3.6943
3.4780
28.87
34.99
125.6
3.7878
3.5654
3.3531
28.80
35.06
127.4
3.6601
3.4416
3.2332
28.72
35.13
129.2
3.5374
3.3227
3.1183
28.63
35.20
131
3.4195
3.2085
3.0079
28.56
35.28
132.8
3.3060
3.0989
2.9021
28.49
35.33
134.6
3.1969
2.9935
2.8005
28.40
35.40
136.4
3.0919
2.8922
2.7029
28.33
35.47
138.2
2.9909
2.7948
2.6092
28.26
35.55
140
2.8936
2.7012
2.5193
28.17
35.62
141.8
2.8000
2.6112
2.4328
28.09
35.69
143.6
2.7099
2.5246
2.3498
28.00
35.76
145.4
2.6232
2.4413
2.2700
27.93
35.83
147.2
2.5396
2.3611
2.1932
27.84
35.91
149
2.4591
2.2840
2.1195
27.75
35.98
150.8
2.3815
2.2098
2.0486
27.68
36.05
152.6
2.3068
2.1383
1.9803
27.59
36.12
154.4
2.2347
2.0695
1.9147
27.52
36.21
156.2
2.1652
2.0032
1.8516
27.43
36.28
158
2.0983
1.9393
1.7908
27.34
36.36
159.8
2.0337
1.8778
1.7324
27.27
36.43
161.6
1.9714
1.8186
1.6761
27.18
36.50
163.4
1.9113
1.7614
1.6219
27.09
36.57
165.2
1.8533
1.7064
1.5697
27.00
36.64
167
1.7974
1.6533
1.5194
26.91
36.73
168.8
1.7434
1.6021
1.4710
26.82
36.81
170.6
1.6913
1.5528
1.4243
26.74
36.88
172.4
1.6409
1.5051
1.3794
26.65
36.95
174.2
1.5923
1.4592
1.3360
26.56
37.04
176
1.5454
1.4149
1.2942
26.47
37.11
177.8
1.5000
1.3721
1.2540
26.38
37.18
179.6
1.4562
1.3308
1.2151
26.29
37.27
181.4
1.4139
1.2910
1.1776
26.20
37.35
183.2
1.3730
1.2525
1.1415
26.11
37.42
185
1.3335
1.2153
1.1066
26.02
37.51
186.8
1.2953
1.1794
1.0730
25.92
37.58
188.6
1.2583
1.1448
1.0405
25.83
37.67
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Domestic air conditioner
Functions and Control
190.4
1.2226
1.1113
1.0092
25.74
37.74
192.2
1.1880
1.0789
0.9789
25.65
37.83
194
1.1546
1.0476
0.9497
25.56
37.90
195.8
1.1223
1.0174
0.9215
25.45
37.99
197.6
1.0910
0.9882
0.8942
25.36
38.07
199.4
1.0607
0.9599
0.8679
25.27
38.16
201.2
1.0314
0.9326
0.8424
25.16
38.23
203
1.0030
0.9061
0.8179
25.07
38.32
204.8
0.9756
0.8806
0.7941
24.98
38.39
206.6
0.9490
0.8558
0.7711
24.87
38.48
208.4
0.9232
0.8319
0.7489
24.78
38.55
210.2
0.8983
0.8088
0.7275
24.67
38.64
212
0.8741
0.7863
0.7067
24.58
38.73
213.8
0.8507
0.7646
0.6867
24.48
38.80
215.6
0.8281
0.7436
0.6672
24.39
38.89
217.4
0.8061
0.7233
0.6484
24.28
38.98
219.2
0.7848
0.7036
0.6303
24.19
39.06
221
0.7641
0.6845
0.6127
24.08
39.15
222.8
0.7441
0.6661
0.5957
23.97
39.24
224.6
0.7247
0.6482
0.5792
23.88
39.33
226.4
0.7059
0.6308
0.5632
23.77
39.42
228.2
0.6877
0.6140
0.5478
23.67
39.49
230
0.6700
0.5977
0.5328
23.56
39.58
231.8
0.6528
0.5820
0.5183
23.47
39.67
233.6
0.6361
0.5667
0.5043
23.36
39.76
235.4
0.6200
0.5518
0.4907
23.25
39.85
237.2
239
0.6043
0.5891
0.5374
0.4775
0.5235
0.4648
23.14
23.04
39.94
40.01
240.8
0.5743
0.5100
0.4524
22.93
40.10
242.6
0.5600
0.4968
0.4404
22.82
40.19
244.4
0.5460
0.4841
0.4288
22.71
40.28
246.2
248
0.5325
0.5194
0.4717
0.4175
0.4597
0.4066
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22.60
22.50
40.37
40.46
Domestic air conditioner
Functions and control
Discharging Sensor
R176°=50KΩ±3%
F
B77/176°F=4450K±3%
Temp.((°F))
Max.(KΩ)
Normal(KΩ)
Min.(KΩ)
-22
14646.0505
12061.7438
9924.4999
Tolerance(°F)
26.67
36.41
-20.2
13654.1707
11267.8730
9290.2526
26.69
36.39
-18.4
12735.8378
10531.3695
8700.6388
26.73
36.39
-16.6
11885.1336
9847.7240
8152.2338
26.74
36.37
-14.8
11096.6531
9212.8101
7641.8972
26.76
36.36
-13
-11.2
10365.4565
9687.0270
8622.8491
8074.3787
7166.7474
6724.1389
26.78
26.82
36.36
36.34
-9.4
9057.2314
7564.2244
6311.6413
26.83
36.34
-7.6
8472.2852
7089.4741
5927.0206
26.85
36.32
-5.8
7928.7217
6647.4547
5568.2222
26.89
36.30
-4
7423.3626
6235.7109
5233.3554
26.90
36.30
-2.2
6953.2930
5851.9864
4920.6791
26.92
36.28
-0.4
6515.8375
5494.2064
4628.5894
26.96
36.27
-1.4
6108.5393
5160.4621
4355.6078
26.98
36.27
-3.2
5729.1413
4848.9963
4100.3708
27.01
36.25
-5
5375.5683
4558.1906
3861.6201
27.03
36.23
-6.8
5045.9114
4286.5535
3638.1938
27.05
36.21
-8.6
4738.4141
4032.7098
3429.0191
27.09
36.21
-10.4
4451.4586
3795.3910
3233.1039
27.10
36.19
-12.2
4183.5548
3573.4260
3049.5312
27.14
36.18
-14
3933.3289
3365.7336
2877.4527
27.16
36.16
15.8
3699.5139
3171.3148
2716.0828
27.19
36.14
17.6
3480.9407
2989.2460
2564.6945
27.21
36.12
19.4
3276.5302
2818.6731
2422.6139
27.25
36.10
21.2
3085.2854
2658.8058
2289.2164
27.27
36.10
23
2906.2851
2508.9126
2163.9230
27.30
36.09
24.8
2738.6777
2368.3158
2046.1961
27.32
36.06
26.6
2581.6752
2236.3876
1935.5371
27.36
36.05
28.4
2434.5487
2112.5459
1831.4826
27.39
36.03
30.2
2296.6230
1996.2509
1733.6024
27.41
36.01
32
2167.2730
1887.0018
1641.4966
27.45
36.00
33.8
2045.9191
1784.3336
1554.7931
27.46
35.98
35.6
1932.0242
1687.8144
1473.1460
27.50
35.96
37.4
1825.0899
1597.0431
1396.2333
27.54
35.94
39.2
1724.6540
1511.6468
1323.7551
27.55
35.91
41
1630.2870
1431.2787
1255.4324
27.59
35.89
42.8
1541.5904
1355.6163
1191.0048
27.63
35.87
44.6
1458.1938
1284.3593
1130.2298
27.66
35.85
46.4
1379.7528
1217.2282
1072.8813
27.68
35.83
48.2
1305.9472
1153.9626
1018.7481
27.72
35.82
26
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Domestic air conditioner
Functions and control
50
1236.4792
1094.3200
967.6334
27.75
35.80
51.8
1171.0715
1038.0743
919.3533
27.77
35.76
53.6
1109.4661
985.0146
873.7359
27.81
35.74
55.4
1051.4226
934.9440
830.6210
27.84
35.73
57.2
59
996.7169
945.1404
887.6792
843.0486
789.8583
751.3077
27.88
27.91
35.71
35.67
60.8
896.4981
800.8922
714.8380
27.93
35.65
62.6
850.6086
761.0603
680.3265
27.97
35.64
64.4
807.3024
723.4134
647.6580
28.00
35.60
66.2
68
766.4212
727.8172
687.8205
654.1596
616.7252
587.4271
28.04
28.08
35.58
35.56
69.8
691.3524
622.3161
559.6694
28.11
35.53
71.6
656.8979
592.1831
533.3634
28.15
35.51
73.4
624.3328
563.6604
508.4261
28.18
35.47
75.2
593.5446
536.6540
484.7796
28.22
35.46
77
564.4275
511.0760
462.3510
28.24
35.42
78.8
536.9865
486.9352
441.1516
28.27
35.40
80.6
511.0105
464.0500
421.0258
28.31
35.37
82.4
486.4151
442.3499
401.9146
28.35
35.35
84.2
463.1208
421.7683
383.7626
28.38
35.31
86
441.0535
402.2430
366.5175
28.42
35.29
87.8
420.1431
383.7151
350.1301
28.45
35.26
89.6
400.3242
366.1295
334.5542
28.49
35.24
91.4
381.5350
349.4341
319.7460
28.53
35.20
93.2
363.7176
333.5801
305.6645
28.58
35.17
95
346.8176
318.5216
292.2709
28.62
35.15
96.8
330.7839
304.2151
279.5286
28.65
35.11
98.6
315.5682
290.6199
267.4031
28.69
35.08
100.4
301.1254
277.6976
255.8620
28.72
35.06
102.2
287.4128
265.4119
244.8745
28.76
35.02
104
274.3905
253.7288
234.4118
28.80
34.99
105.8
262.0206
242.6161
224.4465
28.83
34.95
107.6
250.2676
232.0436
214.9529
28.87
34.93
109.4
239.0983
221.9825
205.9065
28.92
34.90
111.2
228.4809
212.4060
197.2844
28.96
34.86
113
218.3860
203.2887
189.0648
28.99
34.83
114.8
208.7855
194.6066
181.2273
29.03
34.79
116.6
199.6531
186.3369
173.7524
29.07
34.77
118.4
190.9639
178.4584
166.6217
29.12
34.74
120.2
182.6945
170.9508
159.8181
29.16
34.70
122
174.8228
163.7951
153.3249
29.19
34.66
123.8
167.3280
156.9733
147.1268
29.25
34.63
125.6
160.1904
150.4683
141.2090
29.28
34.59
127.4
153.3914
144.2641
135.5577
29.32
34.56
129.2
146.9136
138.3454
130.1598
29.35
34.52
27
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Domestic air conditioner
Functions and control
131
140.7403
132.6980
125.0027
29.41
34.48
132.8
134.8559
127.3081
120.0746
29.44
34.45
134.6
129.2457
122.1630
115.3645
29.48
34.41
136.4
123.8956
117.2504
110.8618
29.53
34.38
138.2
140
118.7926
113.9241
112.5589
108.0776
106.5564
102.4388
29.57
29.62
34.34
34.30
141.8
109.2784
103.7961
98.5000
29.66
34.27
143.6
104.8443
99.7046
94.7315
29.70
34.21
145.4
100.6112
95.7939
91.1253
29.75
34.18
147.2
149
96.5692
92.7088
92.0553
88.4805
87.6735
84.3690
29.79
29.84
34.14
34.12
150.8
89.0211
85.0614
81.2048
29.88
34.07
152.6
85.4976
81.7908
78.1744
29.93
34.02
154.4
82.1303
78.6615
75.2715
29.97
33.98
156.2
78.9116
75.6668
72.4902
30.02
33.94
158
75.8343
72.8004
69.8249
30.06
33.91
159.8
72.8916
70.0561
67.2703
30.11
33.85
161.6
70.0770
67.4283
64.8213
30.15
33.82
163.4
67.3844
64.9115
62.4731
30.20
33.78
165.2
64.8080
62.5006
60.2211
30.24
33.73
167
62.3423
60.1906
58.0609
30.29
33.69
168.8
59.9821
57.9770
55.9885
30.34
33.66
170.6
57.7223
55.8552
53.9998
30.38
33.60
172.4
55.5583
53.8210
52.0912
30.43
33.57
174.2
53.4856
51.8706
50.2591
30.47
33.51
176
51.5000
50.0000
48.5000
30.47
33.51
177.8
49.7063
48.2057
46.7083
30.47
33.53
179.6
47.9835
46.4842
44.9911
30.40
33.60
181.4
46.3286
44.8323
43.3452
30.33
33.62
183.2
44.7385
43.2468
41.7672
30.27
33.71
185
43.2105
41.7248
40.2540
30.20
33.78
186.8
41.7386
40.2604
38.7996
30.15
33.84
188.6
40.3241
38.8545
37.4048
30.07
33.91
190.4
38.9643
37.5045
36.0668
30.00
33.96
192.2
37.6569
36.2078
34.7831
29.95
34.03
194
36.3996
34.9622
33.5513
29.88
34.09
195.8
35.1903
33.7653
32.3689
29.80
34.14
197.6
34.0269
32.6151
31.2338
29.73
34.21
199.4
32.9075
31.5096
30.1438
29.66
34.29
201.2
31.8302
30.4467
29.0970
29.61
34.34
203
30.7933
29.4246
28.0915
29.53
34.41
204.8
29.7950
28.4417
27.1254
29.46
34.47
206.6
28.8337
27.4961
26.1970
29.39
34.54
208.4
27.9078
26.5864
25.3048
29.32
34.59
210.2
27.0160
25.7110
24.4470
29.25
34.66
28
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Domestic air conditioner
Functions and control
212
26.1569
24.8685
23.6222
29.17
34.74
213.8
25.3290
24.0574
22.8291
29.10
34.79
215.6
24.5311
23.2765
22.0662
29.03
34.86
217.4
23.7620
22.5245
21.3323
28.96
34.93
219.2
221
23.0205
22.3055
21.8002
21.1025
20.6261
19.9465
28.89
28.81
34.99
35.06
222.8
21.6159
20.4303
19.2924
28.74
35.13
224.6
20.9508
19.7825
18.6626
28.67
35.19
226.4
20.3091
19.1582
18.0563
28.60
35.26
228.2
230
19.6899
19.0924
18.5564
17.9761
17.4723
16.9098
28.53
28.44
35.33
35.40
231.8
18.5157
17.4166
16.3680
28.36
35.47
233.6
17.9590
16.8769
15.8458
28.29
35.53
235.4
17.4214
16.3564
15.3427
28.22
35.60
237.2
16.9023
15.8542
14.8577
28.13
35.67
239
16.4010
15.3696
14.3902
28.06
35.74
240.8
15.9167
14.9020
13.9394
27.99
35.82
242.6
15.4489
14.4506
13.5047
27.91
35.89
244.4
14.9968
14.0149
13.0855
27.82
35.94
246.2
14.5599
13.5942
12.6811
27.75
36.01
248
14.1376
13.1879
12.2909
27.66
36.09
249.8
13.7294
12.7955
11.9144
27.59
36.16
251.6
13.3347
12.4165
11.5510
27.50
36.23
253.4
12.9531
12.0503
11.2003
27.43
36.30
255.2
12.5840
11.6965
10.8617
27.36
36.37
257
12.2270
11.3545
10.5348
27.27
36.45
258.8
11.8817
11.0240
10.2191
27.18
36.52
260.6
11.5475
10.7046
9.9142
27.10
36.59
262.4
11.2242
10.3957
9.6197
27.01
36.66
264.2
10.9112
10.0970
9.3352
26.94
36.73
266
10.6084
9.8082
9.0602
26.85
36.81
267.8
10.3151
9.5288
8.7945
26.76
36.88
269.6
10.0312
9.2586
8.5378
26.69
36.95
271.4
9.7563
8.9971
8.2895
26.60
37.04
273.2
9.4901
8.7441
8.0495
26.51
37.11
275
9.2322
8.4993
7.8175
26.44
37.18
276.8
8.9824
8.2623
7.5931
26.35
37.26
278.6
8.7404
8.0329
7.3760
26.26
37.33
280.4
8.5059
7.8108
7.1660
26.17
37.40
282.2
8.2787
7.5958
6.9629
26.08
37.47
284
8.0584
7.3875
6.7664
29
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26.01
37.56
Domestic air conditioner
Dimensinal drawings
8.Dimensional drawings
2.76
2.57
0.84
1.78
0.24
0.18
0.22
0.84
2.57
9.Center of gravity
2.57
0.84
1
0.39
0.84
1.78
30
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Domestic air conditioner
System configuration
Installation Manual of Room Air Conditioner
Preparation
Necessary Tools for Installation
Selection of Installation Place
Indoor Unit - Select a location that is
● Torque wrench
(0.67 in,0.87in,1.02in )
● Hammer
● Nipper
● Hacksaw
● Pipe cutter
● Hole core drill
● Flaring tool
● Spanner(0.67,0.75 and 1.02in )
● Gas leakage detector or
● Knife
● Measuring tape
● Robust not causing vibration, where the unit can be supported s ufficiently.
● Not affected by heat or steam generated in the vicinity, and where the inlet and outlet of
the unit are not disturbed.
● Possible to drain easily, and where piping can be connected with the outdoor unit.
● Where conditioned air can be spread in a room evenly.
● Place where the distance of more than lm from televisions, radios, wireless apparatuses
● Reamer
soap-and-water solution
and fluorescent lamps 3 feet or approximately.
● In the case of fixing the remote controller on a wall, place where the indoor unit can
receive signals when the fluorescent lamps in the room are in use.
Power Source
Outdoor Unit - Select a location that is
● Less affected by rain or direct sunlight and is sufficiently ventilated.
● Strong enough to bear the unit, where vibration and noise are not increased.
● Not causing a nuisance to neighbors due to discharged air or noise.
● A distance marked  is available as illustrated in the below figure.
● All wiring to the unit must be in accordance with the National Electric code
and local ordinances.
Drawing for the installation of indoor and outdoor units
The models adopt HFC free refrigerant R410A
Attention must be paid to
the pitch of drain hose
more than 5cm
（2 inches）
Optional parts for piping
A Non-adhesive tape
B Adhesive tape
C Saddle (L.S) with screws
Connecting electric cable
for indoor and outdoor
E Drain hose
G
more than
10cm
D
(4 inches)
F Insulating material
G Piping hole cover
Arrangement of piping
directions
more than10cm
（4 inches）
Rear left
F
A
Rear
right
Left
Floor fixing dimensions of the outdoor unit
(Unit: inch)
Z
X
Right
Y
C
Below
Model
more than10cm
more than10cm
X
Dimensions(inches)
x
y
z
（4 inches）
（4 inches）
HSU12VHGL-W
● The marks from A to
G in the figure are the
name of the parts.
● The distance between
the indoor unit and the
floor should be more
than 2m or 6 feet.
19 2/3
10 1/16
Fixing of outdoor unit
● Fix the unit to concrete or block with bolts
D
E
(10mm) securely.
● When fitting the unit to wall surface, roof or
more than 60cm
（24 inches）
5 1/2
●
rooftop, fix the unit securely in consideration
of earthquake and strong wind.
If vibration may affect the house, fix the unit
by attaching a vibration-proof mat.
more than 15cm
（5 7/8 inches）
The above picture is for reference only. Your product may look different.
Read this manual before installation
Explain the operation of the unit to the user according to this manual
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31
Domestic air conditioner
System configuration
Accessory parts
2
Remote controller (1)
Drain hose (1)
AAA dry battery (2)
Cushion (4)
Mounting plate (1)
Drain-elbow (1)
Plastic cap (4)
Ø4X25 Screw (4)
Making a Hole on the Wall and Fitting the Piping Hole Cover
● Make a hole of B mm / inches in diameter, slightly descending to outside the wall.
● Install piping hole cover and seal it off with putty after installation
Pitch downward for drainage
Wall hole
09k/12k : B= 60mm(2 3/8 inches)
18k/24k : B=70mm(2 3/4 inches)
ØBmm
Pipe supporting plate (1)
Indoor side
Selection of pipe
Model
(Section of wall hole)
Liquid pipe (Ø)
Gas pipe (Ø)
6.35mm (1/4 ")
9.52mm (3/8 ")
3
HSU12VHGL-W
Thickness of wall
Outdoor side
G Piping hole pipe
Installation of the Indoor Unit
Drawing of pipe
NOTE：The thickness of the pipe must be 0.8mm(1/16”) at least.
[ Rear piping ]
● Draw pipes and the drain hose, then fasten them with the adhesive tape
Indoor unit
1
[ Left·Left-rear piping ]
● In case of left side piping, cut away, with a nipper, the lid for left piping.
● In case of left-rear piping, bend the pipes according to the piping direction to
the mark of hole for left-rear piping which is marked on insulation materials.
Fitting of the Mounting Plate and Positioning of the wall Hole
1. Insert the drain hose into the carity of heat insulation materials of indoor unit.
2. Insert the indoor/outdoor electric cable from backside of indoor unit, and pull it
out on the front side, then connect them.
3. Coat the flaring seal face with refrigerant oil and connect pipes.
Cover the tubing connection with insulation materials closely, and with adhesive
tape.
When the mounting plate is first fixed
1. Carry out, based on the wall studs or lintels, a proper leveling for the plate
to be fixed against the wall, then temporarily fasten the plate with one nail.
2. Ensure the proper level of the plate, by hanging a thread with a
weight from the central top of the plate, then fasten the plate.
Indoor/outdoor electric cable
3. Find the wall hole location A using a measuring tape
Insulation
material
Lid for right
piping
B= 60mm
B= 60mm
Lid for left piping
Lid for under piping pipe
Piping
Pipe supporting
plate
Drain hose
30mm
A=145mm
30mm
Fix with adhesive tape
A=145mm
● Indoor/outdoor electric cable and drain hose must be bound with refrigerant
piping with adhesive.
[ Other direction piping ]
A=125mm
30mm
B= 70mm
● Cut away, with a nipper, the lid for piping according to the piping direction and
then bend the pipe according to theposition of wall hole. When bending, be
careful not to crush pipes.
● Make sure that the wires connecting the indoor and outdoor units are not covered
by the refrigeration piping insulation and are long enough to connect to the terminal
block on the indoor unit.
Fixing the indoor unit body
Pay attention to the following points before installation of machine:
1. Take out cushion blocks on
the left and right angle beads
as shown in the following
Figure.
● Hang the unit body onto the upper notches of the
mounting plate. Move the body from side to side to verify
its secure fixing.
● In order to fix the body onto the mounting plate,hold up
the body from the underside and then put it down
perpendicularly.
mounting plate
Unloading of indoor unit body
2. Remove 2 gaskets under the
cross-flow fan.
●When you unload the indoor unit,please use
your hand to raise the body , then
lift the bottom of the body outward
slightly and lift the unit until
it leaves the mounting plate.
3. Clean the burr on the surface of fracture to avoid the power
wire from being scratched after removing the virtual opening
of the outgoing line slot on the case by hands in indoor
power-on process.
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agraffe
32
mounting plate
Domestic air conditioner
4
Connecting the indoor/outdoor Electric Cable
Removing the wiring cover
Installation of Outdoor Unit
1
Install according to the instructions on the 1st page of this manual
● Remove terminal cover at right bottom corner of indoor unit, then take off
wiring cover by removing its screws.
System configuration
Outdoor unit
Connection of pipes
2
● When bending the interconnect tubing, ensure the radius is at least 1 1/4" to 1 3/4",
When connecting the cable after installing the indoor unit
30mm to 40mm to ensure against crushing the tubing.
● Connecting the pipe of gas side first makes working easier.
● Ensure the interconnecting tubing is approved for R410A.
1. Insert the cable from the outside into the unit through the same
hole that has the interconnecting tubing.
Half union
2. Pull out the cable on the front side, and connect the cable
making a loop.
Forced fastening without careful centering may
damage the threads and cause a leakage of gas.
Flare nut
When connecting the cable before installing the indoor unit
●
●
●
Fastening torque
18N.m/13.3Ft.lbs
Liquid/Gas side9.52mm(3/8") 42 N.m/30.1Ft.lbs
Insert the cord from the back side of the unit, then pull it out on the front side.
Spanner
Fasten the unit wire harness to the conduit holder using the lock nut.
Position the conduit holder to its original state using screw.
Pipe Diameter(ǿ)
Liquid side6.35mm(1/4")
Torque wrench
Gas side 12.7mm(1/2")
55N.m/40.6Ft.lbs
Gas side 15.88mm(5/8")
60 N.m/44.3Ft.lbs
Ensure that no dirt or debris enters the tubing. The standard tubing length is 25 ft/7.5M.
If a different length is required, adjust the refrigerant amount by 1/2 oz/ft, 50 g/M for the
9k, 12k and 18k models. For the 24k model, adjust by 1/2 oz/ft, 50 g/M.Before opening
the service valves, evacuate the interconnecting tubing and indoor unit. Follow the
instruction in section 5 on page 4.
CAUTION
Note
When connecting the cable, confirm the terminal number of indoor and
outdoor units carefully. If wiring is not correct, the unit will not operate
properly and could cause a defect.
Outdoor unit
Indoor unit
B
A
Indoor unit
A
Outdoor unit
4wire 14AWG
(4G0.75mm )
Control Wiring
Amax
• Max.Elevation:
= 32.8ft / 10m (09k / 12k)
Outdoor unit
= 50ft / 15m (18k / 24k)
B
HSU12VHGL-W
Power cable:
Indoor unit
B
Outdoor unit
A
the elevation A is more
• Inthancase16.4ft
/ 5m, oil trap shoud be
Oil trap
installed every 5~7m(16.4ft-23ft)
Indoor unit
Length: Bmax
• Max.
= 50ft / 15m (09k / 12k)
= 83.3ft / 25m (18k / 24k)
3wire with ground 14AWG
1. If the supply cord is damaged, it must be replaced by the manufacturer or its
service agent or a similar qualified person. The type of connecting wire is
H05RN-F or H07RN-F.
2. If the fuse on PC board is broken please change it with the type of
T.3.15A/250VAC (Indoor), T.25A/250VAC (Outdoor).
3. The wiring method should be in line with the local wiring standard.
4. Use an HVACR circuit breaker or time delay fuse.
Cutting and Flaring Work of Piping
● Pipe cutting is carried out with a pipe cutter and burs must
● After inserting the flare nut, flaring work is carried out.
A
Flare tool for R410A
Conventional flare tool
Clutch-type
clutch-type(Rigid-type) Wing-nut type (Imperial-type)
0~0.5mm
0~1/51 inch
1.5~2.0mm
1/17 ~1/8 inch
1.0~1.5mm
3/76 ~1/17 inch
1.Cut pipe
Flare tooling die
2.Remove burs
3.Insert the flare nut
Correct
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4.Flare pipe
Incorrect
Lean
33
be removed.
Damage of flare
Crack
Partial
Too outside
Domestic air conditioner
System configuration
3
●
●
●
4
1
Connection
Loosen the screws on terminal block and insert the wires fully into terminal
block, then tighten the screws.
If wiring is not correct, the unit will not operate properly and it could cause a
defect in the unit.
Fix the cable with a clamp.
Power Source Installation
● The power source must be exclusively used for air conditioner.
● In the case of installing an air conditioner in a moist place, please install an earth leakage breaker.(GFCI)
● For installation in other places, use an HVACR circuit breaker of time delay fuse.
2
Attaching Drain-Elbow
On Drainage
● Please install the drain hose and ensure downward flow.
● Please don’t do the drainage as shown below.
● If the drain-elbow is used,
please attach as shown in figure.
(Note: Only for heat pump unit.)
5
1.
Less than
5cm
Purging Method:To use vacuum pump
It becomes The end is imm- It waves. The gap with the
There is the bad
high midway. ersed in water.
ground is too small. smell from a ditch
Detach the service port’s cap of 3-way valve, and the valve cap for 2-way valve
and 3-way valve. Connect the service port to the low side of the gauge manifold
and connect the vacuum pump to the center port of the manifold.
● Please pour water in the drain pan of the indoor unit, and confirm that drainage
is proper.
2. Open the handle on the low side of the gauge manifold and operate vacuum pump.
● In case that the attached drain hose is in a room, please
to the hose to prevent condensation.
3. Vacuum the tubing for at least 15 minutes. The vacuum level on the low side gauge
should be 29.9 in of Hg, 76 cm of Hg, 0.1 MPa. when vacuuming is complete, close
the valve on the manifold and turn off the vacuum pump. The vacuum level should
hold for 1-2 minutes. If the vacuum level does not hold, check the flared connections
and repeat this step.
■ Refrigerant charge label
Contains fluorinated greenhouse gases
covered by the Kyoto Protocol
4. Open the 2-way valve 1/4 turn. After 5-6 seconds, close the valve and inspect for
leaks with a leak detector or soap solution.
5. No gas leakage? Go to step 6.
In case of a leak, try tightening the flare connections to fix the leak. If the
leak stops, go to step 6. If the leak continues, check the flare connections
and repair as needed, then go back to step 3. then proceed step 6. If leak
continues, remove the refrigerant used for the leakage check and flare
tubes again. Repeat vacuum and leak and if no leakage, proceed to step 6.
8. After attaching the caps, check for leakage around the caps.
Step 2.
Open
Gaugemanifold(for R410A)
Gauge manifold
Tube(for R410A)
Step 4.
Step 3.
Close
Vacuum pump
Step 6.
2-way valve
3-way valve
kg
2
2=
kg
1+2=
kg
A
B
C
D
E
This product contains fluorinated greenhouse gases covered by
the Kyoto Protocol. Do not vent into the atmosphere.
Refrigerant type:R410A
GWP* value:1975
GWP=global warming potential
Please fill in with indelible ink,
•1
the factory refrigerant charge of the product
•2
the additional refrigerant amount charged in the field and
• 1+2 the total refrigerant charge
on the refrigerant charge label supplied with the product.
The filled out label must be adhered in the proximity of the product
charging port (e.g. onto the inside of the stop value cover).
A contains fluorinated greenhouse gases covered by the Kyoto
Protocol
B factory refrigerant charge of the product: see unit name plate
C additional refrigerant amount charged in the field
D total refrigerant charge
E outdoor unit
F refrigerant cylinder and manifold for charging
leakage, replace the service port and valve caps.
2-way valve Liquid Side
3-way valve Gas Side
1=
F
valve completely.
Step 1.
R410A
1
6. Detach the charge hose from the service port, open 2-way valve and 3-way
7. To prevent the gas
apply insulation to
2-way valve
3-way valve
O
Open 90
■ Check for Installation and Test Run
Step 7.
2-way valve 3-way valve
■ Please kindly explain to our customers how to operate
through the instruction manual.
2-way valve
3-way valve
Check Items for Test Run
Valve cap
CAUTION
● If the refrigerant of the air conditioner leaks, it is necessary to discharge all the
refrigerant. Repair the leak, vacuum the unit then charge the liquid refrigerant
into air conditioner according to the amount marked on the name plate.
● Please do not let other cooling medium, except specified one (R410A), or air
enter into the cooling circulation system. This could cause high pressure and
could cause a leak and lead to personal injuries.
34
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in boxes
Gas leak from interconnecting tubing?
Installation is on the interconnecting tubing?
Are the connecting wirings of indoor and outdoor firmly
inserted to the terminal block?
Is the connecting wiring of indoor and outdoor firmly fixed?
Is drainage securely carried out?
Is the ground wire securely connected?
Is the indoor unit securely fixed?
Is power source voltage the local codes?
Is there any noise?
Are the lights near the unit working normally?
Are cooling and heating (when in heat pump) performing normally?
Is the operation of room temperature control normal?
Valve cap
Service port cap
Put check mark
Domestic air conditioner
Installations
11 Service Diagnosis
11.1 Caution for Diagnosis
The operation lamp flashes when any of the following errors is detected.
1. When a protection device of the indoor or outdoor unit is activated or when the thermistor malfunctions,
disabling equipment operation.
2. When a signal transmission error occurs between the indoor and outdoor units. In either case, conduct the
diagnostic procedure described in the following pages.
11.2 Parameter of primary electronic appliance
name
parameter
picture
Rated voltage:220-230V
Compressor
Rated current:4.8A
Rated frequency: 50/60HZ
Rated voltage:220-230V
Fan motor
Rated current:0.2A
Rated frequency: 50/60HZ
Rated voltage:220-230V
Reactor
Rated current:10.5A
Rated frequency: 50/60HZ
Rated voltage:220-230V
4-way valve
Rated current:0.1A
Rated frequency: 50/60HZ
35
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Domestic air conditioner
Installations
11.3 Problem Symptoms and Measures
Symptom
None of the units
operates
Operation
sometimes stops.
Check Item
Check the power supply.
Check the indoor PCB
Check the power supply.
Details of Measure
Check to make sure that the rated voltage is supplied.
Check to make sure that the indoor PCB is broken
A power failure of 2 to 10 cycles can stop air conditioner
operation.
Set the units to cooling operation, and compare the
Check for faulty operation
Equipment
operates but
does not cool, or
does not heat
(only for heat
pump)
temperatures of the liquid side connection pipes of the
of the electronic
connection section among rooms to check the opening and
expansion valve.
closing operation of the electronic expansion valves of the
individual units.
Diagnosis by service port
pressure and operating
Check for insufficient gas.
current.
Large operating
noise and
vibrations
Check the installation
condition.
Check to make sure that the required spaces for
installation (specified in the Technical Guide, etc.) are
provided.
36
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Domestic air conditioner
Service diagnosis
11
Code indication
Indoor
displaying
panel code
indication
Indoor and
Outdoor
Indoor Malfunction
E7
Malfunction
Reference
fault description
(LED1 flash
Page
times)
15
Communication fault between indoor and
outdoor units
Page48
E1
--
Room temperature sensor failure
Page38
E2
--
Heat-exchange sensor failure
Page38
E4
--
Indoor EEPROM error
Page47
E14
--
Indoor fan motor malfunction
Page39
F12
1
Outdoor EEPROM error
Page47
F1
2
The protection of IPM
Page43
3
Overcurrent protection of AC electricity
F22
Outdoor
Outdoor
for the outdoor model
Communication fault between the IPM and
Page52
F3
4
F19
6
F27
7
F4
8
F8
9
Outdoor DC fan motor fault
Page42
F21
10
Defrost temperature sensor failure
Page38
F7
11
Suction temperature sensor failure
Page38
F6
12
Ambient temperature sensor failure
Page38
F25
13
Discharge temperature sensor failure
Page38
F13
16
Short of refrigerant
Page54
F11
18
deviate from the normal for the compressor
Page51
F28
19
Loop of the station detect error
Page51
/
21
Over load protection of indoor system
Page53
F2
24
Overcurrent of the compressor
Page52
F23
25
E9
21
outdoor PCB
Power voltage is too high or low
momentary
Overheat protection for Discharge
temperature
Overcurrent protection for single-phase of the
High work-intense protection
37
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Page50
Compressor is lock-rotor or stopped
compressor
Page45
Page51
Page46
Page52
Page54
Domestic air conditioner
Installations
11.4.1 Thermistor or Related Abnormality
E1: Room temperature sensor failure
Indoor display
E2: Heat-exchange sensor failure
LED1 flash 10 times：Defrost temperature sensor failure
LED1 flash 11 times：Suction temperature sensor failure
Outdoor display
LED1 flash 12 times：Ambient temperature sensor failure
LED1 flash 13 times：Discharge temperature sensor failure
Method of
malfunction detection
The temperatures detected by the thermistors are used to determine thermistor errors
Malfunction detection
conditions
when the thermistor input is more than 4.92V or less than 0.08V during compressor
operation.
Note: The values vary slightly in some models
Supposed causes
Troubleshooting
■ Faulty connector connection
■ Faulty thermistor
■ Faulty PCB
* Caution Be sure to turn off power switch before connect or disconnect connector,
or else
parts damage may be occurred.
YES
Check the connector connection,
whether if it loose or misplug
Re-connect
NO
*Thermistor resistance check
NO
Is the resistance is conformity
with normal temperature
YES
Replace the thermistor
Replace the indoor PCB
Thermistor resistance check method:
Remove the connector of the thermistor on the PCB, and measure the resistance of thermistor using tester. The
relationship between normal temperature and resistance is shown in the value of indoor thermistor.
38
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Domestic air conditioner
Installations
11.4.2 EEPROM abnormal
Indoor Display
E4:
indoor EEPROM error
outdoor display
F12: Outdoor EEPROM error; Outdoor LED1 flash 1 times
Method of
malfunction detection
The Data detected by the EEPROM are used to determine MCU
Malfunction detection
conditions
when the data of EEPROM is error or the EEPROM is damaged
Supposed causes
■Faulty EEPROM data
■Faulty EEPROM
■Faulty PCB
Troubleshooting
* Caution Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Replace the indoor or outdoor mainboard
39
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Domestic air conditioner
Installations
11.4.3 Indoor AC fan motor malfunction
Indoor Display
E14
Method of
malfunction detection
The fan speed detected by the Hall IC during fan motor running which is used to
determine the fan motor operating
Malfunction detection
conditions
When there is no fan speed feedback signal within 2 minutes
Supposed causes
Troubleshooting
Operation halt due to breaking of wire inside the fan motor.
Fan motor overheat protection
Operation halt due to breaking of the fan motor lead wires
Detection error due to faulty indoor unit PCB
* Caution
Be sure to turn off power switch before connect or disconnect connector, or else parts
damage may be caused
NO
Check whether terminals
Pull out the terminals on the indoor
mainboard and reinsert them.
on indoor pcb is well?
YES
Electrify the machine again and turn it on in the cooling operation,
Measure voltage between the positions 1and 3 of Terminal CN5 on
the indoor PCB
the voltage is about 90-220vac
YES
Measure whether there is voltage pulse(0-5VDC)
YES
check whether motor can run
between the positions middle wire and black wire
of Terminal CN2 on the indoor PCB
when turn on the unit
Is it ok?
YES
the indoor motor is damaged and need replace
the indoor pcb is damaged and need replace
40
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Domestic air conditioner
Installations
11.4.4 Outdoor DC fan motor fault
Outdoor diplay
LED1 flash
9 times
Method of
malfunction detection
DC fan motor is detected by checking the fan running condition and so on
Malfunction detection
conditions
when the data of EEPROM is error or the EEPROM is damaged
Supposed causes
■DC fan motor protection dues to the DC fan motor faulty
■DC fan motor protection dues to faulty PCB
* Caution
Troubleshooting
Be sure to turn off power switch before connect or disconnect connector,
or parts damage
may be occurred.
41
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Domestic air conditioner
Installations
Check whether Terminal on the outdoor
mainboard is well inserted.
Is it normal?
NO
Reinsert the terminals
YES
Electrify the machine again and turn it
NO
on in the Cool state with the remote
controller. check whether motor can
run？
Measure the voltage between 1 and 3 of the terminal of
fan motor on the mainboard about DC310V, Measure
YES
the voltage between 3 and 4 of the terminal about
DC15V. Measure the voltage between 5 and 3 of the
Measure the voltage between 3 and 6 of
terminal about 1-6v.
the terminal about 0-5v.
YES
Is it normal?
Is it normal?
NO
YES
The mainboard of the outdoor unit is
The motor of the outdoor unit is damaged
damaged and needs replacing
and needs replacing.
42
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NO
Domestic air conditioner
Installations
11.4.5 IPM protection
LED1 flash 2 times
Outdoor diplay
Method of
malfunction detection
IPM protection is detected by checking the compressor running condition and so on
Malfunction detection
conditions
■The system leads to IPM protection due to over current
Supposed causes
■The compressor faulty leads to IPM protection
■circuit component of IPM is broken and led to IPM protection
■IPM protection dues to the compressor faulty
■IPM protection dues to faulty PCB of IPM module
■Compressor wiring disconnected
Troubleshooting
* Caution
Be sure to turn off power switch before connect or disconnect connector,
or else
parts damage may be occurred..
Electrify the machine again and turn it on
with the remote controller,If malfunctions
YES
are reported before or upon the compressor
IPM Module is damaged and
needs replacing.
being started up,
Malfunction unsolved
NO
The
compressor
is
started
normally,
but
malfunctions are reported after it has run for some
time.
1、The system may have been over or under charged with gas, which can be judged through the pressure of the
measuring system.
2、The shaft of compressor is seized and the compressor needs replacing.
43
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Domestic air conditioner
Installations
11.4.6 Over-current of the compressor
LED1 flash 3 or 24 or 25 times
Outdoor diplay
Method of
malfunction detection
he current of the compressor is too high
Malfunction detection
conditions
when the IPM Module is damaged or the compressor is damaged.
voltage is too low or too high
Supposed causes
Troubleshooting
power supply
■Faulty IPM Module
■ Faulty compressor
■Faulty power supply
* Caution
Be sure to turn off power switch before connect or disconnect connector, or parts
damage may be occurred...
Electrify the machine again and turn it on
with the remote controller, If malfunctions
YES
are reported before or upon the compressor
IPM Module is damaged and
needs replacing.
being started up,
NO
The compressor is started normally, but
malfunctions are reported after it has
YES
Repair the power supply
run for some time. Check the power
supply is too low or too high
NO
NO
the system may have been over or under charged
with gas, which can be judged through the
pressure of the measuring system.
44
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Domestic air conditioner
Installations
11.4.7 The communication fault between IPM and outdoor PCB
LED1 flash 4 times
Outdoor diplay
Method of
malfunction detection
Communication is detected by checking the IPM module and the outdoor PCB
Malfunction detection
conditions
■The outdoor PCB broken leads to communication fault
■The IPM module broken leads to communication fault
Supposed causes
Troubleshooting
■The outdoor PCB is broken
■The IPM module is broken
■Communication wiring disconnected
* Caution
Be sure to turn off power switch before connect or disconnect connector,
or else
parts damage may be occurred
1) Check whether Terminal CN23 and CN24 on the outdoor mainboard
CN10 and CN11 on IPM module
2) Check whether the connected wire between IPM and outdoor
1) Pull out and reinsert the terminals.
NO
Are they good?
YES
2) Replace connected wire
Malfunction unsolved
Electrify the machine again and turn it
on, Check whether the voltage between
1 and 2 of Terminal CN23 is about DC5V,
YES
Replace the outdoor IPM module
with a new one.
Check whether the voltage between2
and 3 of Terminal CN23 is about DC15V,
NO
Replace the outdoor mainboard with a new one
45
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Domestic air conditioner
Installations
11.4.8 Power Supply Over or under voltage fault
LED1 flash 21 times
Outdoor diplay
The power supply is over voltage
Method of
malfunction detection
An abnormal voltage rise or fall is detected by checking the specified voltage detection
Malfunction detection
conditions
An voltage signal is fed from the voltage detection circuit to the microcomputer
Supposed causes
Troubleshooting
■Supply voltage not as specified.
■The IPM module is broken.
■The outdoor PCB is broken.
* Caution
Be sure to turn off power switch before connect or disconnect connector, or else
parts damage may be occurred.
Electrify the machine again and turn it on with
the remote controller. Check whether the
compressor is started normally
YES
Is it ok?
Maybe there is some disturbance
NO
Test the outdoor power supply
YES
(+310VDC) with a multimeter.
Change the IPM module
check whether the power
is >150 V or <390V?
NO
~230 is ok?
YES
Change the IPM module
NO
This question may be caused by the power. Repair
the power supply.
46
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Domestic air conditioner
Installations
11.4.9 Overheat Protection For Discharge Temperature
LED1 flash 8 times
Outdoor diplay
Method of
malfunction detection
The Discharge temperature control is checked with the temperature being detected by
the Discharge pipe thermistor
Malfunction detection
conditions
when the compressor discharge temperature is above 230°F
■Electronic expansion valve defective
■Faulty thermistor
■Faulty PCB
Supposed causes
* Caution
Troubleshooting
Be sure to turn off power switch before connect or disconnect connector,
or else
parts damage may be occurred.
Electrify the machine again and turn it on with the remote controller,
then measure the temperature at the exhaust temperature sensor of
the compressor on the outdoor unit
1) The cryogen may have been leaked during
the
temperature
230°F
installation, or there may be leakage in the piping
exceeds
YES
shortly after the
system.
2) There may be other causes to make the exhaust
machine starts up?
temperature too high.
NO
Malfunctions occur after running for some time even
though the measured temperature is below 230°F . Pull
out the exhaust sensor and measure its resistance at
standard
temperatures
according
to
the
resistance-temperature table
the
results
deviate
YES
much?
The sensor is damaged. Replace the sensor
with a new one.
NO
The outdoor mainboard is damaged and needs be
replaced
47
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Domestic air conditioner
Installations
11.4.10 The communication fault between indoor and outdoor
indoor diplay
E7
Outdoor diplay
LED1 flash 15 times
Method of
malfunction detection
Communication is detected by checking the indoor PCB and the outdoor PCB
Malfunction detection
conditions
■The indoor PCB broken leads to communication fault
■The outdoor PCB broken leads to communication fault
■Communication wiring disconnected
■The indoor PCB is broken
■The outdoor PCB is broken
■The module PCB is broken
Supposed causes
* Caution
Troubleshooting
Be sure to turn off power switch before connect or disconnect connector,
or else
parts damage may be occurred.
The outdoor mainboard needs
YES
Restart the a/c and it
dehumidification.
becomes normally.
NO
If starting up normally, but
The outdoor mainboard needs
NO
malfunction occurs again after a
dedust.
while
YES
Check whether the linking cable
NO
between the indoor and outdoor is well
connected or whether its core wires are
1. Reconnect the linking cable;
2. Replace the linking cable with new
one.
well insulated.
YES
（A）
48
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Domestic air conditioner
Installations
（A）
Check the indoor mainboard.
YES
Measure the voltage between Jumpers 3 and
4 of IC1 on the indoor mainboard with a
NO
multimeter.
Test the outdoor power supply (230VAC
and +310VDC) with a multimeter.
If the voltage is of a constant
value of 0V DCto5V DC
If 230VAC is available but 310DC not,
the power module is damaged, replace it
with a new one.
YES
If both 230VAC and 310DC are
The indoor mainboard is damaged; replace
NO
available, measure +12V
it with a new one.
(from7805) is available.
The outdoor mainboard is damaged;
Replace them with a new one.
YES
Measure the AC voltage between positions 1
and 3 on the terminal of outdoor unit with a
If the value is constant at about 30V, the
multimeter.
indoor mainboard is damaged, replace it with
a new one.
If the value varies between 0 and 80 VAC, the
The outdoor mainboard is damaged; replace
outdoor mainboard is damaged, replace it
it with a new one.
with a new one.
49
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Domestic air conditioner
NO
Table of Contents
11.4.11 Loss of synchronism detection
Inverter side current detection is abnormal
Outdoor diplay
LED1 flash 18 times
LED1 flash 19 times
Method of
malfunction detection
The position of the compressor rotor can not detected normally
Malfunction detection
conditions
when the wiring of compressor is wrong or the connection is poor; or the compressor
is damaged
Supposed causes
Troubleshooting
■Faulty The wiring of compressor
■Faulty compressor
■Faulty PCB
* Caution
Be sure to turn off power switch before connect or disconnect connector,
or else
parts damage may be occurred.
Within 3 minutes after the machine is
supplied with power and turned on with
NO
the remote controller, check whether
the compressor can
1. The wiring of compressor is incorrect
or the connection is poor;
2. The compressor is damaged
start up
YES
At first, the compressor start up ,soon the
YES
compressor stopped with the LED1 on the
IPM Module is damaged and needs
replacing.
outdoor PCB blinks（1Hz）19/18 times
Malfunction unsolved
the
Maybe there is some disturbance
Malfunctions
exist
also,
the
compressor is damaged replace a
new one
50
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Domestic air conditioner
Table of Contents
11.4.12 High work-intense protection
LED1 flash 21 times
Outdoor diplay
Method of
malfunction detection
Malfunction detection
conditions
Supposed causes
Troubleshooting
High work-intense control is activated in the heating mode if the temperature being
sensed by the heat exchanger thermistor exceeds the limit.
Activated when the temperature being sensed by the heat exchanger rises above
149°F twice in 30 minutes.
■Faulty electronic expansion valve
■Dirty heat exchanger
■Faulty heat-exchange sensor
■Insufficient gas
* Caution
Be sure to turn off power switch before connect or disconnect connector,
or else
parts damage may be occurred.
Electrify the machine again and turn it on with the
remote
controller,
check
whether
the
wind
temperature is below 149°F
The malfunction is reported
after the machine has run
1 、 Check room temperature and
YES
pipe temperature sensor.
2、the temperature monitoring circuit
for some time?
of the indoor mainboard
NO
The indoor unit blows poorly
due to blocked filters or poor
YES
1) Clean the filters
2) Reinstall the fan.
condition of the fan?
NO
Use some tools to measure the pressure of system，
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Domestic air conditioner
Sound level
12.Performence and cerves diagrams
12.1 Cooling capacity-temperature curves
Cooling value-temerature table
indoor temp.
outdoor temp.(humidity 46%)
DB/WB
64.4°F
68°F
77°F
89.6°F
95°F
104°F 109.4°F 114.8°F
64.4/53.6°F
2443
2417°F
4048
3627
3228
3149
2910
2160
64.4/57.2°F
2494
2469
4133
3711
3428
3228
2989
2222
68/59°F
2546
2520
4217
3795
3507
3308
3069
2283
71.6/60.8°F
2623
2597
4301
3922
3587
3388
3189
2345
77/64.4°F
2777
2700
4428
4175
3786
3587
3468
2592
80.6/66.2°F
2854
2751
4512
4301
3906
3707
3547
2654
86/71.6°F
3034
3009
4850
4639
4265
4105
3986
2993
89.6/73.4°F
3060
3034
4934
4723
4344
4145
4026
3024
89.6/75.2°F
3111
3086
5018
4808
4424
4225
4105
3086
5500
5000
4500
4000
3500
3000
2500
2000
1500
1000
64.4°F
68°F
77°F
89.6°F
95°F
F
/7
5.
2°
F
109.4°F
114.8°F
89
.6
3.
4°
/7
.6
89
/7
1
86
6.
/6
.6
.6
2°
°F
F
F
4°
4.
/6
80
.6
/6
0.
9°
71
/5
68
77
F
F
2°
64
.4
/5
7.
3.
/5
.4
64
8°
F
104°F
6°
F
cooling capacity (W)
cooling capacity and indoor/outdoor temp.curves
indoor tempe.(DB/WB)
52
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Domestic air conditioner
Sound level
12.2 Cooling power consumption value- temperature curves
Power consumption value-temp.table
indoor temp.
outdoor temp.(humidity 46%)
DB/WB
64.4°F
68°F
77°F
89.6°F
95°F
104°F 109.4°F 114.8°F
64.4/53.6°F
429
432
1138
1186
1220
1301
1227
626
64.4/57.2°F
437
443
1159
1206
1240
1328
1362
640
68/59°F
446
457
1179
1227
1260
1349
1396
653
71.6/60.8°F
454
463
1206
1247
1281
1362
1423
720
77/64.4°F
468
474
1179
1274
1321
1396
1464
746
80.6/66.2°F
491
483
1206
1301
1342
1409
1491
753
86/71.6°F
497
503
1254
1355
1403
1504
1572
806
89.6/73.4°F
505
494
1267
1396
1423
1531
1592
899
89.6/75.2°F
514
486
1288
1423
1443
1559
1613
966
power consumption-temp.curves
1700
64.4°F
1300
68°F
77°F
1100
89.6°F
900
95°F
700
104°F
500
109.4°F
300
114.8°F
F
2°
75
.
89
.6
/
3.
4°
F
F
.6
/7
/6
6.
2°
F
.6
80
/6
80
.6
4.
4°
6.
2°
F
F
77
/6
.6
/6
0.
8°
°F
71
/5
9
68
.2
/5
7
.4
64
64
.4
/5
3.
6°
°F
F
100
89
power consumption(w)
1500
indoor tempe.(DB/WB)
53
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Domestic air conditioner
Sound level
12.3 Cooling discharge pressure curves
Cooling discharge pressure.table
outdoor temp.
indoor temp.
(humidity 46%)
DB/WB
60.8°F
66.2°F
71.6°F
59°F
2421
2504
2588
77°F
3239
3273
3339
86°F
3239
3306
3339
95°F
3273
3339
3439
104°F
3306
3473
3473
113°F
2554
2554
2652
60.8°F
66.2°F
71.6°F
discharge pressure
cooling discharge pressure
4000
3500
3000
2500
2000
1500
59°F
77°F
86°F
95°F
104°F
113°F
Outdoor Temp.
54
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Domestic air conditioner
Sound level
12.4 Cooling suction pressure curves
Cooling suction pressure.table
outdoor temp.
indoor temp.
(humidity 46%)
DB/WB
60.8°F
66.2°F
71.6°F
59°F
660
683
706
77°F
883
893
911
86°F
883
902
911
95°F
893
911
938
104°F
902
947
947
113°F
696
696
723
cooling suction pressure
60.8°F
66.2°F
suction pressure
1050
71.6°F
950
850
750
650
550
450
350
59°F
77°F
86°F
95°F
104°F
113°F
Outdoor Temp.
55
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Domestic air conditioner
Sound level
12.5 Heating capacity-temperature curves
Heating capacity and indoor/outdoor temp.table
outdoor temp.
indoor temp.(humidity 46%)
DB/WB
59°F
68°F
77°F
5°F
2338
1776
1905
23°F
3594
3286
3031
41°F
4676
4240
3940
44.6/42.8°F
4473
4167
3779
59°F
3660
3472
2955
68°F
3366
3248
2703
77°F
3472
3360
2783
5000
4500
4000
3500
3000
2500
2000
1500
1000
500
0
59°F
68°F
F
77
°
°F
68
59
°F
F
44
.6
/4
2.
8°
41
°F
23
°F
77°F
5°
F
heating capacity(W)
heating capacity and indoor/outdoor temp.curves
56
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Domestic air conditioner
Sound level
12.6 Heating power consumption value- temperature curves
Power consumption value-temp.table
outdoor temp.
indoor temp.(humidity 46%)
DB/WB
59°F
68°F
77°F
5°F
881
949
1037
23°F
1057
1044
1261
41°F
1193
1356
1437
44.6/42.8°F
1094
1204
1315
59°F
628
688
748
68°F
463
482
524
77°F
465
487
526
heating capacity and indoor/outdoor temp.curves
59°F
68°F
77°F
1600
1400
cooling capacity(w)
1200
1000
800
600
400
200
0
5°F
23°F
41°F 44.6/42.8°F
57
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59°F
outdoor tempe.(DB/WB)
68°F
77°F
Domestic air conditioner
Sound level
12.7 Heating discharge pressure curves
Heating discharge pressure.table
outdoor temp.
indoor temp.
(humidity 46%)
DB/WB
59°F
68°F
77°F
5°F
2941
3069
3165
14°F
3005
3101
3197
23°F
3053
3133
3229
32°F
3101
3165
3261
41°F
3165
3197
3293
50°F
3062
3154
3200
59°F
2567
2644
2669
68°F
2459
2507
2531
59°F
heating discharge pressure
discharge pressure
68°F
77°F
4000
3500
3000
2500
2000
1500
1000
5°F
14°F
23°F
32°F
41°F
50°F
59°F
68°F
Outdoor Temp.
58
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Domestic air conditioner
Sound level
12.8 Heating suction pressure curves
Heating suction pressure.table
outdoor temp.
indoor temp.
(humidity 46%)
DB/WB
59°F
68°F
77°F
5°F
743
775
799
14°F
759
783
808
23°F
771
791
816
50°F
783
799
824
41°F
799
808
832
50°F
774
797
808
59°F
649
668
674
68°F
621
633
639
59°F
heating suction pressure
68°F
77°F
suction pressure
900
800
700
600
500
400
5°F
14°F
23°F
50°F
41°F
50°F
59°F
68°F
Outdoor Temp.
59
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Domestic air conditioner
Sound level
13.Sound level
Sound power level(Indoor unit)
Model
Sound power level
230V,60HZ
Measuring location of
microphone
Cooling/heating
1U12BE2ERA
62
/
176
176
158
158
140
140
122
122
104
104
86
86
68
68
60
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(Outdoor unit)
(cooling/heating)
Domestic air conditioner
Circuit diagrams
14 Circuit diagrams
14.1 Outdoor unit control board Circuit Diagrams
CN2
Black 1
AC-L
CN1
White 1
AC-N
CN3
PE
FUSE1
T25A 250VAC
CX7
104/275V
SA1
S14K350
RV3
R1
1M
RV2
RV1
S14K350
S14K350
2K/2W
R3
R33
2.2K
CN32
TEST/SS
1
GND
2
CN5
3
N
P
PC817A
1 IC9
2
PC817A
TLP851/PC851
3 IC11
4
1
R2
1M
TLP421/PS2561
R54
10K
+5V
R53
10K
1
2
4
3
2
1
4
3
330
L2
P
N
AC-N OUT
CN8
CX3
225/275V
C14
AC-L OUT
CN9
PTC1
0
0
0
0
400N
K5
R40 5.1K/1%
Comment: 2SC2412K
R93
N1
R94
R99
102/50V
1
ST
W
B
1
2
1
2
CN12
K6
51
52
53
54
46
31
55
56
60
47
29
30
42
57
58
63
64
1
2
4
5
3
43
40
39
35
34
33
32
16
12
11
H
C
R83
R81
R79
R77
L
J32
H
C
C
2U/450V
C1
2SC2412K
N4
1
Two-speed AC Fan CN14 CN15
C COM
K1
1
Three-speed AC Fan
L
K2
9
8
7
6
5
4
3
2
1
White BlackCOM
1
FUSE2
T1A/250V
K4
1
COM heater
Four -Way Comment:
CN25 CN11 CN27 CN36
K3
62
61
59
13
36
41
38
37
45
28
27
26
44
24
50
23
22
6
9
7
8
48
49
10
14
15
17
18
19
20
21
25
R12
100/1W CX4
103/275V
COM
3
2
1
R101
4.7K
J20
SW1
R95
10K
R96
10K
4
3
+5V
C16
Comment: 102/50V
1
2
104/50V
J36
J5
J22
R63
560
R64
10K
R65
10K
5
6
7
8
IC6
SDA
SCL
GND
VCC
AT24C02B
GND
GND
GND
GND
C12
104/50V
4
3
2
1
VCC
TX
VREF
XQ
AVSS
CS
DC-FANSPEED
HW
DC FAN PG
Fre Adjust
Indoor Com OUT Fault Light
Indoor Com IN
SW-1
PC COM
SW-2
NC
HEAT-2
Terminal Pro
Fan/E-Valve select
MODULE COMOUT SDA
MODULE COM IN
SCL
NC
H/L FAN SPEED
TEST-EN
FAN
VSS
4-WAY
COOL-EN
HEAT-1
HEAT-EN
PTC
RESET
E-VALVE-D
XIN
E-VALVE-C
XOUT
E-VALVE-B
VSS
E-VALVE-A
VSS
MODE
VSS
NC
VCC
NC
NC
NC
NC
NC
NC
NC
NC
NC
IC5
NC
NC
NC
NC
R5F212A8SNFA
NC
NC
NC
NC
1K
1K
1K
1K
R75 2K
4.7K
R86
J2
J1
R66
R67
R68
R69
R70
J39 R71
J40 R72
1K
1K
1K
1K
1K
1K
1K
10K
E13
4.7U/16V
E14
4.7U/16V
C19
104/50V
+5V
IC7 ULN2003
1
16
2
15
3
14
4
13
5
12
6
11
7
10
GND 12V
C13
104/50V
D
C
B
A
1
+12V
1
2
3
4
5
6
CN16
1
2
3
4
CN31
3
2
1
CN20
2
1
CN19
R88
+12V
10K R87
4.7K
J34
D6
12V-5A-892H(N)-1AC-C
12V-5A-892H(N)-1AC-C
12V-5A-892-1CC-C
LL4148
CN17
12V-25A-891P-1A-C
12V-5A-892H(N)-1AC-C
12V-5A-892H(N)-1AC-C
+5V
+5V +5V
3
D11
D5
+12V+12V
J6
J33
2
2SC2412K
LL4148
2SC2412K LL4148
N5
J7
J15
1
N3
E11
+15V+15V
J23
J16
4.7U/16V
C23 C24 C25 C26
J13
J4
J10
CN18
J14
J37
J8
104/50V
R89
R85
R84 104/50V
J12
J38
J3
104/50V 104/50V
3
R92
10K
10K 4.7K
2
E12
+5V
1
4.7U/16V
C10
R91
1
0
N6
+5V Comment: 2SC2412K
R100
R42
4.7K
R102
J9 R41 1K
R39
10K
+5V
J21
330
R43
0
R104
0
R44
1K
R103
R61
2K
R62
10K
P2
2SA1037AK
4.7K
R60
10K
R59
2K
+5V
R38
CX2
225/275V
8MH/10A
J28 J29 J30 J31
J24 J25 J26 J27
AC-L
AC-N
CN6
L1
8MH/10A
1
1 IC10
2
R52
10K
J18
4 IC8
CX1
225/275V
R4
2K
1N4007
D1
R35 1K
E9
47U/25V
+15V
R34 1K
ZD2
10V/0.5W
R13 330/1W
ZD3
5.1V/0.5W
RA-362M
1
CN4
R37 330
R36 1K
103/50V
C15
红
COM
+5V
R48
10K
R47
5.1K/1%
P1
2SA1037AK
R97
R51
10K
10K
CN30
GND
PCJ35
HEAT
COOL
TEST/SS
1
2
3
4
5
+5V
47K/1%
Yellow/Green 1
0V
15V
调速
反馈
CN21
310V
1
2
3
4
5
6
(白)
+5V
R98
10K
R49
10K
J17
R50
1K
C20
102/50V
FUCTION TEST(White)
3
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TQ(White)
XQ(Red)
HW(Yellow) CS(White)
20K/1%
20K/1%
R74 10K/1%
C22 102/50V
CY5
472/250V/275V
5
4
3
2
1
R82
20K/1%
R80
R78
R76
CY2
472/250V/275V
CN13
ERROR
LED1
R73 10K/1%
C21 102/50V
CY1
472/250V/275V
CN10
XT1
4M
Domestic air conditioner
61
CY6
472/250V/275V
104/50V
C11
SW TEST(BLUE)
E-valve(White)
CY10
222/250VAC
CY4
103/250V/275V
1K
1K
1K
1K
CY7
222/250VAC
CY3
103/250V/275V
R55
R56
R57
R58
CN7
GND
1
5V
2
RST
3
MODE
4
白
FLASH
CN23
5V
3
COM
2
GND
1
R46
0
Com with Module (Black)
CN33
2
White
1
J19
直流风机
Circuit diagrams
CX5
104/275V
ZD1
IN5948B
R25
10K
R90 0
R24
5
6
7
8
1
CY8
472/1KV
3
D10
ER106
IC1
NC
ADJ HV
FB
CS VCC
GNDDRV
15
IRFUC20
M1
NCP1200P100
R15
5.1K/1%
1
2
3
J11 4
10K
R27
R26
1K
R14
100K/2W
2/1W
R19
47
Comment: E22034
T1
D8
10 MBR3100\ER302
E7
470U/25V
9
E5
470U/25V
1
R22
C6
104/50V
R30
1K
Vin
IC4
R31
1K
Vout
L7805CV
+15V
C5
104/50V
R17
330/1W
L3
20UH/1A
R29
E6
47 100U/16V
104/50V 1K/0.5W
C8
C3
+12V
102/100V
1
D7
6 MBR1100\SB1100
7
E4
470U/25V
R18 47
C2
102/100V
D9
4 MUR115\MUR130\ER106
5
E3
22U/25V
2
PC817A
4
IC2
3
3
+5V
E8
C9
Comment: 100U/16V
104/50V
+5VD
CY9
222/250VAC
CN22
1
2
3
模块板电源(蓝)
IC3
TL431C
220 220
R32
5.1K/1%
R28 5.1K/1%
R23
220K/2W
LED2
POWER
250 Connector
CN26
P
E1
E2
680U/400V/450V 680U/400V/450V
250 Connector
CN24
N
P
CX6
105/275VAC
N
Domestic air conditioner
62
R21
P
C4
103/50V
R16
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1
1
R20
GND
2
C7
104/50V
N
Circuit diagrams
14.2 Module board Circuit Diagram
CN11
3
2
1
通讯
1
BG1
D25BX60B
5V
2
3
8
IC7
6
TLP251
5
C502
100U/25V
5V
3
15V
R212
9.1K
CN7
LI
C405
104/275V
RS1
0.015/5W
C207
104
8
1
L
LO
10K
R215
R220 82
R218 82
R214
100
5.2MH/15A
IC6
IC4
4 HA1630D06
1
R221 140
R216
10
2
3
8
C016
472
CN6
5V
C208
104
R207
R209
D207
FFA30U60DN
IC8
C404
SGH40N60UF
474/630VDC
6
5
6
8
C203
104
IC6
7
7
CN1
P
IC5
680U/400V*2
N
CN5
1
R019
4.7K
15V
HA17393AF
R010
5V
4.7K
3
2
1
电源(蓝)
5V
C406
104/275V
RS2
0.02/5W
15V
C504
100U/25V
C501
100U/16V
R018 4.7K
TR2
C014
MMBT9012
102
CN10
5V
C204 104
330
R013
4.7K
R012
HA1630D06
IC4
HA1630D06
7
4 HA17393AF
IC5
R222,R225参数由压缩机退磁电流计算而定
R225 4.22K
5V
R222
330
3
2
6
5
1K
5
R208
6.8K
1K
1K
R202
6.2K
1K
R210 6.8K
R201
R203
R204 6.2K
PC2
PC817A
PC1
PC817A
10
1
2
3
4
24
20
P
N
IC3
24C04
R213 100
R230
C011
104
PM1
PS21964-AT/AST/PS219A4-ASTX
7
8
9 10 11 12 13 14 15 16 17
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
C005
104
IC2
T600D
CN2
U
IC1
SH7046
C013
104
104
X1 10M
4.7U/16V
C503
C002
D208
LL4148
474
5V
20
19
18
17
16
15
14
13
12
11 C001
10 104
9
8
7 C015
6 102
5
4
3
2
1
CN4
W
U 23
D206
24V/1W
C006
CN3
V
5V
V 22
15V
C023
224
C022
103
W 21
C413
100U/25V
6
5V
C003
104
5
R007 4.7K
R006 100
C020
102
C019
103
R009 4.7K
5V
R008
4.7K
4
C412
22U/25V
C411
22U/25V
C410
22U/25V
R005 4.7K
R017 4.7K
RES
FWP
TXD
RXD
MD1
5V
GND
C028
103
CN12
7
6
5
4
3
2
1
D204
LL4148
C004
104
3
VNO
2
D203
US1M
C032
104
D202
US1M
C034
104
D201
US1M
C036
104
5V
5V
8
7
6
5
VNC
VNC
CN8
AC-L
CN9
AC-N
330
R223
C012
104
R011
4.7K
R211
1K
5V
2
3
4 HA1630D06
R014
330
C008
474
R205
1K
R206
1K
C017
223
CIN
VP1
C007
474
R001 4.7K
C201
104
C202
104
330
R015
MMBT9013
TR3
R016
1K
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FO
WP
C205
223
VP
C029
471
R003 4.7K
R217 1K
Domestic air conditioner
63
VN1
UP
C030
471
TR1
MMBT9013
R224
4.7K
C018
103
C009
471
WN
VWFB
40
39
38
37
36
35
34
33
32
31
30
29 R231 4.7K
28
27
26
25
24
23
22
21
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Circuit diagrams
Sincere Forever
Haier Group
Haier Industrial Park, No.1, Haier Road
266101, Qingdao, China_
Http：//www.haier.com
Edited by :
Zou Na
Liu xiang
Signed by :
He Shiquan
Approved by: Wu Hongjin
Domestic air conditioner
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SERVICE MANAUL
Wall Mounted Type
DC Inverter SUPER MATCH
Model No. AS12NB1HRA-White
HSU12VHGL-G
WARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or
Repair the product or products dealt with in this service information by anyone else could result in serious injury or death
2014 (Qingdao Haier Air Conditioner General corp. , Ltd)
All rights reserved. Unauthorized copying and distribution is a violation of law
Haier Group
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Version V1
Date 2014-05-25
Contents
Table fo contents
1. Introduction............................................................................................ 1
2. Features ................................................................................................ 7
3. Specifications ........................................................................................ 8
4. Sensors list............................................................................................ 9
5. Piping diagrams.....................................................................................10
6. Printed Circuit Board Connector Wiring Diagram..................................11
7. Functions and Control ........................................................................... 14
8. System configuration............................................................................. 25
9. Dimensional drawings ...........................................................................42
10. Conter of gravity ..................................................................................42
11. Service Diagnosis................................................................................ 43
12. Circuit diagrams ..................................................................................59
Domestic air conditioner
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Introduction
1 Introduction
1.1 Model name explanation
A
S
1
2
N
B
1
H
R
A
Apply toT1; 208~230V60HZ/1ph
DC inverter
Indoor units
Version number
35N Platform
Platform of indoor units: N (N platform)
Nominal cooling capacity (12000BTU/h)
Type of indoor unit: S (wall-mounted)
Indoor unit
Domestic air conditioner
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Introduction 1.2 Safety Cautions
Be sure to read the following safety cautions before conducting repair work.
The caution items are classified into “Warning” and “Caution”. The “Warning” items are especially important
since they can lead to death or serious injury if they are not followed closely. The “Caution” items can also lead
to serious accidents under some conditions if they are not followed. Therefore, be sure to observe all the safety
caution items described below.
About the pictograms
Ƹ This symbol indicates an item for which caution must be exercised.
The pictogram shows the item to which attention must be paid.
ż This symbol indicates a prohibited action.
The prohibited item or action is shown inside or near the symbol.
Ɣ This symbol indicates an action that must be taken, or an instruction.
The instruction is shown inside or near the symbol.
After the repair work is complete, be sure to conduct a test operation to ensure that the equipment operates
Normally, and explain the cautions for operating the product to the customer.
1.2.1 Caution in Repair
Warning
Be sure to disconnect the power cable plug from the plug socket before disassembling the equipment for
a repair.
Working on the equipment that is connected to a power supply can cause an electrical shook.
If it is necessary to supply power to the equipment to conduct the repair or inspecting the circuits, do not
touch any electrically charged sections of the equipment.
If the refrigerant gas discharges during the repair work, do not touch the discharging refrigerant gas .The
refrigerant gas can cause frostbite.
When disconnecting the suction or discharge pipe of the compressor at the welded section, release the
refrigerant gas completely at a well-ventilated place first.
If there is a gas remaining inside the compressor , the refrigerant gas or refrigerating machine oil
discharges when the pipe is disconnected, and it can cause injury.
If the refrigerant gas leaks during the repair work, ventilate the area. The refrigerant gas can generate
toxic gases when it contacts flames.
The step-up capacitor supplies high-voltage electricity to the electrical components of the outdoor unit.
Be sure to discharge the capacitor completely before conducting repair work . A charged capacitor can
cause an electrical shock.
Do not start or stop the air conditioner operation by plugging or unplugging the power cable plug.
Plugging or unplugging the power cable plug to operate the equipment can cause an electrical shock or
fire.
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air conditioner
Introduction Warning
Do not repair the electrical components with wet hands . Working on the equipment with wet hands can
cause an electrical shock
Do not clean the air conditioner by splashing water. Washing the unit with water can cause an electrical
shock.
Be sure to provide the grounding when repairing the equipment in a humid or wet place, to avoid
electrical
shock.
Be sure to turn off the power switch and unplug the power cable when cleaning the equipment. The
internal fan rotates at a high speed, and cause injury.
Do not tilt the unit when removing it. The water inside the unit can spill and wet the furniture and floor.
Be sure to check that the refrigerating cycle section has cooled down sufficiently before conducting
repair
work. Working on the unit when the refrigerating cycle section is hot can cause burns.
Use the welder in a well-ventilated place. Using the welder in an enclosed room can cause oxygen
deficiency.
1.2.2 Cautions Regarding Products after Repair
Warning
Be sure to use parts listed in the service parts list of the applicable model and appropriate tools to
conduct repair work. Never attempt to modify the equipment. The use of inappropriate parts or tools can
cause an electrical shock, excessive heat generation or fire.
When relocating the equipment, make sure that the new installation site has sufficient strength to
withstand the weight of the equipment.
If the installation site does not have sufficient strength and if the installation work is not conducted
securely, the equipment can fall and cause injury.
Be sure to install the product correctly by using the provided standard installation frame.
For
Incorrect use of the installation frame and improper installation can cause the equipment to fall, resulting
integral
in injury.
units only
Be sure to install the product securely in the installation frame mounted on a window frame.
If the unit is not securely mounted, it can fall and cause injury.
For
integral
units only
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air conditioner
Introduction Warning
Be sure to use an exclusive power circuit for the equipment, and follow the technical standards related to
the electrical equipment, the internal wiring regulations and the instruction manual for installation when
conducting electrical work.
Insufficient power circuit capacity and improper electrical work can cause an electrical shock or fire.
Be sure to use the specified cable to connect between the indoor and outdoor units. Make the
connections securely and route the cable properly so that there is no force pulling the cable at the
connection terminals.
Improper connections can cause excessive heat generation or fire.
When connecting the cable between the indoor and outdoor units, make sure that the terminal cover
does
not lift off or dismount because of the cable.
If the cover is not mounted properly, the terminal connection section can cause an electrical shock,
excessive heat generation or fire.
Do not damage or modify the power cable.
Damaged or modified power cable can cause an electrical shock or fire. Placing heavy items on the
power cable, and heating or pulling the power cable can damage the cable.
Do not mix air or gas other than the specified refrigerant (R-410A / R22) in the refrigerant system.
If air enters the refrigerating system, an excessively high pressure results, causing equipment damage
and injury.
If the refrigerant gas leaks, be sure to locate the leak and repair it before charging the refrigerant. After
.
charging refrigerant, make sure that there is no refrigerant leak.
If the leak cannot be located and the repair work must be stopped, be sure to perform pump-down and
close the service valve, to prevent the refrigerant gas from leaking into the room. The refrigerant gas
itself
is harmless, but it can generate toxic gases when it contacts flames, such as fan and other heaters,
stoves and ranges.
When replacing the coin battery in the remote controller, be sure to disposed of the old battery to prevent
children from swallowing it.
If a child swallows the coin battery, see a doctor immediately.
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air conditioner
Introduction Caution
Installation of a leakage breaker is necessary in some cases depending on the conditions of the
installation site, to prevent electrical shocks.
Do not install the equipment in a place where there is a possibility of combustible gas leaks.
If a combustible gas leaks and remains around the unit, it can cause a fire.
Be sure to install the packing and seal on the installation frame properly. If the packing and seal are not
installed properly, water can enter the room and wet the furniture and floor.
1.2.3 Inspection after Repair
Warning
Check to make sure that the power cable plug is not dirty or loose, then insert the plug into a power outlet
all the way.
If the plug has dust or loose connection, it can cause an electrical shock or fire.
If the power cable and lead wires have scratches or deteriorated, be sure to replace them.
Damaged cable and wires can cause an electrical shock, excessive heat generation or fire.
Warning
Do not use a joined power cable or extension cable, or share the same power outlet with other electrical
appliances since it can cause an electrical shock, excessive heat generation or fire.
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air conditioner
Introduction Caution
Check to see if the parts and wires are mounted and connected properly, and if the connections at the
soldered or crimped terminals are secure. Improper installation and connections can cause excessive
heat generation, fire or an electrical shock.
If the installation platform or frame has corroded, replace it. Corroded installation platform or frame can
cause the unit to fall, resulting in injury.
Check the grounding, and repair it if the equipment is not properly grounded. Improper grounding can
cause an electrical shock.
Be sure to measure the insulation resistance after the repair, and make sure that the resistance is 1 M
ohm or higher.
Faulty insulation can cause an electrical shock.
Be sure to check the drainage of the indoor unit after the repair.
Faulty drainage can cause the water to enter the room and wet the furniture and floor.
1.2.4 Using Icons
Icons are used to attract the attention of the reader to specific information. The meaning of each icon is described in
the table below:
1.2.5 Using Icons List
Icon
Type of Information
Note
Note
Description
A “note” provides information that is not indispensable, but may
nevertheless be valuable to the reader, such as tips and tricks.
A “caution” is used when there is danger that the reader, through
Caution
Caution
incorrect manipulation, may damage equipment, loose data, get
an
unexpected result or has to restart (part of) a procedure.
Warning
Warning
A “warning” is used when there is danger of personal injury.
A “reference” guides the reader to other places in this binder or in
Reference
this manual, where he/she will find additional information on a
specific topic.
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air conditioner
Specifications
2.Features
Super quiet: Lower noise operation condition
A-PAM DC inverter:With adoption of S-TYPE,S-PAM and PHASE control technology to works more
stably at low-frequency,and is more energy-saving,mor powerful at high frequency.
Long distance air supplying:
5 F Heating: When 5 °F can still heating natural
50°F heating maintenance:Heating Holding 50°F temperature
Confortable sleep The setting temperature and the indoor noise can be adjusted to a more comfortable
level when you set the “sleep mode” during night sleep.
Super match:One outdoor unit can match two or more indoor unit.
DIY auto mode: Adjust the last fixed operation mode automatically.
Turbo mode: Quick cooling or heating
Auto restart: Automatic return to previous operation conditions after sudden power blackout
24 hours timer: Use the timer function to set on,or off,or from on to off,or from off to on.
Intergrative valve cover:The valve cover is Intergrative.
2-way piping design: The pipe can shoot out both from left or right side.
Easy clean design: The panel is easy to wash and the airflow vents can be detached easily
Double 8 display:The display is Double 8 mode.
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Domestic air conditioner
Specifications
3 Specifications
NOMINAL DISTRIBUTION SYSTEM VOLTAGE
Phase
/
1
Frequency
Hz
60
Voltage
V
230
NOMINAL CAPACITY and NOMINAL INPUT
cooling
heating
Capacity rated
Btu
12000
13500
Power Consumption(Rated)
Btu
4602
4773
36
37.5
EER/ COP
Btu/Btu
Annual energy consumption
Btu/h
Moisture Removal
3334091
inch ³/h
40.6 *10
32*34* 8
9
TECHNICAL SPECIFICATIONS
Dimensions
H*W*D
inch
Packaged Dimensions
H*W*D
inch
Weight
/
lb
22
Gross weight
/
lb
26.8
Color
/
/
White
dB
54/51/50
dB
/
Sound
Sound level
peessure(high/medium/low)
Sound power(high/medium/low)
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38*11 *14
Domestic air conditioner
Specifications
TECHNICAL SPECIFICATIONS-PARTS
cooling
Type
Fan
Cross flow fan
Motor output
Btu
Air flow rate(high)
inch3 /h
Speed(super/high/low)
rpm
136
136
17655
17655
1000/900/800
Type
Heat exchanger
heating
ML fin-
Segment *stage*fitch
1000/900/800
7HI-HX tube
3*14*1.4
Air direction control
Right,Left,Horizontal,Downward
Removable/Washable/Mildew Proof
Air filter
Microcomputer Control
Temperature control
Remote controller model
YR-HD01
Note: the data are based on the conditions shown in the table below
cooling
heating
Indoor: 27 DB/19 WB
Indoor:20 DB
Outdoor: 35 DB/24 WB
Outdoor: 7 DB/6 WB
4
Piping length
16.4inch
Conversation formulae
Kcal/h= KW×860
Btu/h= KW×3414
cfm=m³/min×35.3
Sensors list
type
Description
Qty
Room sensor
Its used for detecting room temperature
1
Pipe sensor
Its used for detecting temperature of evaporator
1
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Piping diagrams 5ˊPinping diagrams
10
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Connector Wiring diagrams 6. Printed Circuit Board Connector Wiring Diagram
Connectors
series
PCB connector
Connect with load
1
CN9
Connector for fan motor
2
CN6
Connector for heat exchanger thermistor and Room temperature thermistor
3
CN5
Connector for UP&DOWN STEP motor
4
CN10
5
CN11
6
CON21
Connector for power N wire
7
CON52
Connector for power L
8
CN7
9
CON2
10
CON3
11
CON23
12
CN36
Connector for long-range control
13
CN34
Connector for Net Module
14
CN51
Connector for room card
15
CN1
Connector for Fresh air
Connector for L&R STEP motor
Connector for display board
Connector for ions generator
Connector for communicate between the indoor PCB and the outdoor PCB
Note: Other designations
PCB(1) (Indoor Control PCB)
1) SW1 Connector for Forced operation ON / OFF switch
2) SW2 1 Select remote code A or B, 2 Select room card able or disable⩖3,4 Select 23ʙ26ʙ33 and 35 ,
3) RV1 Varistor0
4) FUSE1 Fuse 3.15A/250VAC
11
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air conditioner
Connector Wiring diagrams PCB
CN10
SW2
CN6
CN7
CN36
CN34
SW1
CN51
CN11
CN5
CN23
CN52
CON2
CON1
CON3
CN21
CN9
12
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air conditioner
Connector Wiring diagrams 0
&1
W
&1
R
&1
&1
BL
Fresh air
1
&1
)86(
7$9$&
@
<*
,21*(1(5$7,25
DC FAN MOTOR
&1
@
&1&1
/
&1
up-down stepmoter
&1
left stepmoter
&1
6
&1
SW1
Room card &1
&1
EMERGENCY SWITCH
RECEIVER
DISPLAY
&1
AMBIENT TEMP SENSOR
PIPING TEMP SENSOR
&1
Right stepmoter
: %
5
<*
<*
1 /
&
*1'
80
13
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air conditioner
Functions and Control
7.Funcitions and Control
7.1 Main functions and control specification
7.1.1 Automatic operation
When the running mode is turned to automation after starting the system, the system will first determine
the running mode according to the current room temperature and then will run according to the determined
mode. Tr in the following selection conditions means room temperature, Ts means setting temperature, Tp
means temperature of indoor coil pipe
Tr 73.4°F
Tr
Choose Cooling Mode
73.4°F
Choose Heating Mode
After turning to the automation mode, the running mode can be switched between cooling mode, fan
mode and heating mode according to the change of the indoor ambient temperature. But the automatic
conversion between cooling mode and heating mode must be conducted after 15 minutes.
7.1.2 Cooling operation mode
Temperature control range: 60.8 °F---86°F
Temperature difference:
33.8°F/30.2°F
* Control features: When Tr input airflow >Ts set temperature
°F, the compressor will be opened, the indoor
fan will operate at the set speed and the mode signal will be sent to the outdoor system. When Tr
airflow
Ts set temperature
input
°F, the compressor will be opened, the indoor fan will operate at the set speed
and the mode signal will be sent to the outdoor system. The system will keep the original status if Tr= Ts.
Airflow speed control: (temperature difference 33.8°F）
Automatic: When Tr Ts+37.4°F, high speed.
When Ts+33.8°F Tr<Ts+37.4°F, medium speed
When Tr<Ts+33.8°F , low speed
When the sensor is off, low speed
When the airflow speed has no delay from the high to low switching, the speed should be delayed for 3
minutes (remain at high speed for 3 minutes.) before the next switch.
Manus: When the system is operating, you can set the high, medium or low speed manually. (When the
sensor is on or off, the system will change the speed 2 seconds after receiving the signal.)
*Airgate location control: the location for the airgate can be set according to your needs.
*Defrosting function: preventing the frosting on the indoor heat exchanger (when cooling or dehumidifying).
When the compressor works continuously for 1/6 minutes (adaptable in EEPROM) and the temperature of
the indoor coils has been below zero centigrade for 10 seconds, the compressor will be stopped and the
malfunction will be recorded in the malfunction list. The indoor system will continue to run. When the
temperature of the indoor coil is raised to 46°F, the compressor will be restarted again (the requirement of 3
minutes’ delay should be satisfied.)
* timing system on/off function.
* Dormant control function.
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Domestic air conditioner
Functions and Control
7.1.3
Dehumidifying mode.
* temperature control range: 60.8---86 F
* temperature difference: 30.2/33.8°F
Control feature: send the dehumidifying signal to the outdoor system.
When Tr>Ts+35.6°F , the compressor will be turned on, the indoor fan will operate at the set speed.
When Tr is between the Ts and Ts+35.6°F , the outdoor system will operate at the high dehumidifying
frequency for 10 minutes and then at the low dehumidifying mode for six minutes. The indoor fan will
operate at low speed.
When Tr< Ts, the outsystem will be stopped, the indoor fan will be stopped for 3 minutes and then turned to
the low speed option.
All the frequency converses have a 30.2/33.8°F difference.
* Wind speed control: Automatic:
When Tr Ts+41°F , high speed.
When Ts+37.4°F < Tr< Ts+41°F , medium speed.
When Ts+35.6°F < Tr< Ts+37.4°F, low speed.
When Tr<Ts+35.6°F, light speed.
If the outdoor fan stopped, the indoor fan will be paused for 3 minutes.
If the outdoor fan stopped for more than 3 minutes and the outdoor system still operates, the system will be
changed into light speed mode.
When the airflow speed has no delay from the high to low switching, the speed should be delayed for 3
minutes (remain at high speed for 3 minutes.) before the next switch.
Manual: When the sensor is off or Tr< Ts+37.4°F, the manual operation can not be made. (obligatory automatic
operation.)
*Airgate location control: the location for the airgate can be set according to your needs.
*Defrosting function: preventing the frosting on the indoor heat exchanger (when cooling or dehumidifying).
When the compressor works continuously for 1/6 minutes (adaptable in EEPROM) and the temperature of
the indoor coils has been below zero centigrade for 10 seconds, the compressor will be stopped and the
malfunction will be recorded in the malfunction list. The indoor system will continue to run. When the
temperature of the indoor coil is raised to 44.6°F, the compressor will be restarted again (the requirement of 3
minutes’ delay should be satisfied.)
* Coil protection (synchronic overheating protection) are installed for the four directions latch malfunctions
when dehumidifying.
* Timing system on/off function.
* Dormant control function.
7.1.4
Heating operation mode.
* temperature control range: 60.8---86 F
* temperature difference: 30.2/33.8°F
* control feature: the temperature compensation is automatically added and the system will send the heating
signals to the outdoor system.
If Tr Ts, the outdoor compressor is turned on, the indoor fan will be at the cold air proof mode.
If Tr>Ts+35.6°F, the outdoor system is turned off, the indoor fan will be at the heat residue sending mode.
If Tr<Ts+35.6°F, the outdoor system will be turned on again, the indoor fan will be at the cold air proof mode.
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Domestic air conditioner
Functions and Control
*Indoor fan control
manual control: You can choose high, medium, low and automatic speed control.
Automatic: When Tr<Ts, high speed.
When Ts Tr Ts+35.6°F, medium speed.
When Tr> Ts+35.6°F, low speed.
When the airflow speed has no delay from the high to low switching, the speed should be delayed for 3
minutes (remain at high speed for 3 minutes.) before the next switch.
*Airgate location control: the location for the airgate can be set according to your needs.
Coldair proof operation
1. The indoor operation within 4 minutes after the start up is as the following diagram, the air speed can be
raised only after the speed has reached a certain level.
Set speed
Heat start temp 1
Low speed
Keep the high
Heat start temp 2
speed. The fan
Light speed
doesn’t stop
Heat start temp 3
Heat start temp 4
Fan/off
Fan/off
2. 4 minutes after the start up of the indoor fan, the light airflow and the low airflow will be turned to the set
speed airflow.
3. In the cold air proof operation, the fan won’t stop after the start up.
4. During the cold air proof operation, the indoor system will continuously send ‘indoor high speed’ signals to
the outdoor system.
* Residue heat sending. The indoor fan will send the residue heat at a low speed for 12 seconds.
If other conditions are satisfied, when the compressor stops, the indoor system will operate at a light speed.
The indoor fan will stop when the coil temperature is below the ‘heat start temp 4’.
* Defrosting. When the system receives the defrosting signal from outdoors, the indoor fan will stop and the
indoor temperature display won’t change. At the time, any indoor coil malfunctions will be neglected. When
the outdoor defrosting finishes, the coil malfunction will still be neglected until the compressor has been
started up for 30 seconds. The indoor temperature display will not change and the system operates at the
cold air proof mode.
* Automatic heating temperature compensation: when the system enters the heating mode, the temperature
compensation (4) will be added. When the status is switched off, the compensation will be erased.
7.1.5
Strength operation
The system enters the mode after receiving the ‘strength signal’.
Send strength operation signal to the outdoor system.
The mode change finishes the strength operation.
Entering ‘mute’, you can have normal operation or signal control such as timing to finish the strength
operation.
When the system is at the automatic option with the strength/ mute function, if the system enters the cooling
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Functions and Control
mode, the cooling strength/ mute function will be offered; if the system enters the heating mode, then the
heating strength/ mute function will be offered; if the system enters the airflow mode, there will be no
strength/ mute function.
7.1.6 Mute operation
The system enters the mode after receiving the ‘mute signal’.
a. Mute heating: the airflow speed is slight, the system sends the mute signal to the outdoor system.
b. mute cooling: the airflow speed is slight, the system sends the mute signal to the outdoor system.
When the compressor operates, the airflow speed is mute speed. EEPROM is adaptable.
Mute operation can not work under the dehumidifying and airflow-sending operation.
7.1.7 Air refreshing
After receiving the signal from the remote control, (HV series: the background light of the ‘health’ logo is
green. HS series: the ‘health’ indicator will be lighted). If the fan operates, the Nano-Aqua operates to realize
the ions sending function.
If the indoor fan stops, the Nano-Aqua is turned off.
When the Nano-Aqua is turned off, if the air refreshing system is turned on, the Nano-Aqua will be turned on
when the fan operates.
7.1.8 Timing
You can set 24 hours’ on/off timing accordingly. After the setting, the timing indicator will be lightened. Also,
the light will be turning off after the timing is finished. The followings are several timing methods.
1.system /on timing: The timing indicator will be lightened and the indoor system is under the waiting mode.
The light will be turned off when the timing is finished and the rest of the system will operate under a normal
condition. The timing starts since the last reception of the timing signal.
2.system /off timing: When the system is turned on, the timing indicator is lightened, the rest of the system
will operated under a normal condition. When set time comes, the indicator light will be turned off and the
system will be turned off. If you have set the dormant functions, the order of your settings will be operated
according to the timing settings.
3 .system /on and off timing: The settings will be completed according to the orders..
7.1.9 Dormant operation
The dormant timing is an eight hours unadaptable one. The timing signs are shown on the V series board.
(RC series show the dormant signal, the timing light is lighted on the 6 lights board).
2.1 Under the cooling/ dehumidifying operation, after the setting of the dormant operation, the set
temperature will be raised for 1 centigrade after 1 hour’s operation and will be raised for 1 centigrade 1 hour
later. The system will keep this status for 6 hours and then close.
2.2 Under the heating mode, after the setting of the dormant operation, the setting temperature will fall 2
centigrade after 1 hour’s operation and will fall 2 centigrade 1 hour later. 3 hours after the preceding
operations, the set temperature will be raised for 1 centigrade and the system will keep this status for 3 hours
and then close down.
2.3 During the dormant time, except the change of the system mode or a new press on the dormant setting
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Functions and Control
keys, the timing of the 8 hours dormancy will take the first timing as the start time, any presses on other keys
will not affect the original timing.
2.4 Indoor fan control under the dormant operation.
If the indoor fan is at the high speed before the dormant operation setting, the speed will be turned to medium
after the setting. If the fan is at the medium speed before the dormant setting, the speed will be turned to low
after the setting. If the fan is at the low speed before the dormant setting, the speed will not change.
7.1.10 Urgent on/off input
Press the urgency button the buzzer will ring. The system will enter the automatic mode if you don’t press the
button for more than 5 seconds.
Under the system off mode, if you press the urgency key for 5 to 10 seconds, the system will start the test
operation.
Under the system off mode, if you press the urgency key for 10 to 15 seconds, the display screen will show
the resume of the last malfunction.
If the system is under operation, the press on the urgency key will stop it.
Under the system off mode, the display screen will show automatic running sign.
Under the system off mode, the system will not receive the remote control signal if the press on the urgency
key doesn’t last for 15 seconds or if the key is loosened.
Urgency operation: If you press the urgency key for less than 5 seconds, the buzzer will ring when you press
the on/off key. The system will enter the urgency operation when the urgency key is loosened. The urgency
operation is fully automatic.
Test operation.
The inlet temperature sensor doesn’t work, the indoor fan and the indoor air direction board motor works
synchronically. High speed airflow, cooling, outdoor system on, etc, will send the ambient temperature 30
centigrade and coil temperature 16 centigrade information to the outdoor system.
Test operation
The defrost protection of the evaporator doesn’t work.
The temperature control doesn’t work.
The test operation will be finished in 30 minutes.
The test operation can be stopped by the relative commands from the remote control.
7.1.11 Low load protection control
In order to prevent the frosting of the indoor heat interaction device, the outdoor system will be stopped if the
indoor heat interaction temperature is below zero centigrade for 5 minutes, but the fan will continue to
operate. The outdoor system will be started again when the heat interaction temperature is above 7
centigrade and the system has been stopped for 3 minutes. The malfunction will be stored in the malfunction
resume and will not be revealed.
7.1.12 High load protection control
The outdoor system will be stopped if the coil temperature is above 149°F for 2 minutes. The indoor fan will be
controlled by the thermostat. The outdoor system can be restarted when the coil temperature is below 107.6°F
and the system has been stopped for 3 minutes. The malfunction will be stored in the malfunction resume
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Domestic air conditioner
Functions and Control
and will not be revealed.
7.1.13 Abnormal operation of indoor system
When the outdoor system operates, if the indoor system operation differs from the outdoor system, the
abnormal operation malfunction will be reported. 10s after the report, the indoor system will be closed.
Outdoor system mode
Indoor system mode
cooling
conflicts
heating
yes
cooling
cooling
no
cooling
airflow
no
heating
heating
no
heating
airflow
yes
heating
cooling
yes
7.1.14 Malfunction list resume.
Nothing is presented if there is no code list.
The malfunction display will automatically finish in 10 seconds.
The remote control only receives the signals for stop. According to the signals, the malfunction resume
presentation finishes.
The resume restores after the power supply restores.
7.1.15 Abnormality confirmation approaches
1. indoor temperature sensor abnormality:
Under the operation, the normal temperature ranges from 248°F to -22°F. When the temperature
goes beyond this range, the abnormality can be confirmed. If the temperature goes back into the range, the
system will automatically resume.
2 .indoor heat interaction sensor abnormality:
Under the operation, the normal temperature ranges from 248°F to -22°F. When the temperature
goes beyond this range, the abnormality can be confirmed. If the temperature goes back into the range, the
system will automatically resume.
3 .indoor malfunction:
Out door malfunction: When the indoor system receives the outdoor malfunction codes, it will store the code
into E2 for the malfunction list resume. The indoor system will continue to operate according to the original
status, the malfunction code will not be revealed or processed.
4. transmission abnormality:
If the indoor system can’t receive the outdoor system for 8 minutes, the communication abnormality can be
confirmed and reported and the outdoor system will be stopped.
7.1.16 Single indoor system operation
* Enter condition: First, set the high speed airflow and 86°F set temperature, then press the dormant
keys for 6 times within 7 seconds, the system will feedback with 6 rings.
* After the system enters the separate indoor system operation mode, the indoor system will operate
19
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Domestic air conditioner
Functions and Control
according to the set mode and neglect the communication signals of the outdoor system. However, it has to
send signals to the outdoor system.
* Quitting condition: This mode can be quitted after receiving the quitting signal from the remote control or
urgency system. The indoor system thus can quit the single operation mode.
7.1.17 Power cut compensation
* Entering condition: Press dormant button 10 times within 7 second, the buzzer will ring 4 times and the
present system status will be stored into the EEPROM of the indoor system.
* After entering the power cut compensation mode, the processing of the indoor system should be as the
followings:
Remote control urgency signal: operate according to the remote control and the urgent conditions, the
present status will be stored into the EEPROM of the indoor system.
* Quitting conditions: Press dormant button 10 times within 7 seconds and the buzzer will ring twice.
7.1.18 Fixed frequency operation
1. Fixed cooling: a. under G code condition: high speed cooling, set 60.8°F , press temperature ‘-‘ key and the
set key at the same time. The system will enter the fixed frequency operation after the buzzer rings twice.
b. The proceeding programs are as the follows:
Entering the fixed frequency operation, you can set the fixed strength location 1 and send the cooling signal
to the outdoor system. Meanwhile, you can fix the indoor system at high speed mode, the location of the
airflow direction board can be switched to the maximal position.
c. Quitting condition: The fixed frequency cooling can be quitted after receiving the remote signal, and the
system will enter the remote setting status.
2. Fixed heating: a. under G code condition: high speed heating, set 86°F, press temperature ‘+‘ key and the
set key at the same time. The system will enter the fixed frequency operation after the buzzer rings twice.
b. The proceeding programs are as the follows:
Entering the fixed frequency operation, you can set the fixed strength location 1 and send the heating signal
to the outdoor system. Meanwhile, you can fix the indoor system at high speed mode, the location of the
airflow direction board can be switched to the maximal position.
c. Quitting condition: The fixed frequency heating can be quitted after receiving the remote signal, and the
system will enter the remote setting status.
7.1.19 Test program
First, connect the test program terminal on the mainboard. Then connect the system to the power circuit. The
test program will operate as follows.
HV series display: The buzzer rings for one time—the signal will be sent to outdoor system for 0.5 second—
the violet is sent for 0.5-- the background light turns to white—the back ground light turns to white—the
background light turns to white—the background light is fully lighted for 0.5 second—LED screen lights for
0.5 second— the step-in motor fully output for 0.5 second—then the motor doesn’t output for 0.5
second—the motor fully output again for 0.5 second. The test program finishes.
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Domestic air conditioner
Functions and Control
7.1.20 Time cutting function:
Connect the test program terminal on the mainboard after connecting the system to the power circuit. The
CPU of the main control will be 60 times faster.
7.2 Value of thermistor
Room sensor and Pipe Sensor
R25 =10K
3%
B25 /50 =3700K 3%
Temp.(( °F ))
Max.(K )
Normal(K )
Min.(K )
-22
165.2170
147.9497
132.3678
Tolerance(
28.51
)
35.15
-20.2
155.5754
139.5600
125.0806
28.53
35.13
-18.4
146.5609
131.7022
118.2434
28.56
35.11
-16.6
138.1285
124.3392
111.8256
28.60
35.08
-14.8
130.2371
117.4366
105.7989
28.63
35.06
-13
-11.2
122.8484
115.9272
110.9627
100.1367
104.8882
94.8149
28.67
28.71
35.04
35.01
-9.4
109.4410
99.1858
89.8106
28.74
34.99
-7.6
103.3598
93.8305
85.1031
28.76
34.95
-5.8
97.6556
88.7989
80.6728
28.80
34.93
-4
92.3028
84.0695
76.5017
28.83
34.92
-2.2
87.2775
79.6222
72.5729
28.87
34.88
-0.4
82.5577
75.4384
68.8710
28.90
34.86
-1.4
78.1230
71.5010
65.3815
28.94
34.83
62.0907
28.98
34.79
29.01
34.77
-3.2
-5
73.9543
70.0342
67.7939
64.3023
58.9863
-6.8
66.3463
61.0123
56.0565
29.05
34.74
-8.6
62.8755
57.9110
53.2905
29.08
34.72
-10.4
-12.2
-14
59.6076
56.5296
53.6294
54.9866
50.6781
52.2278
48.2099
49.6244
45.8771
29.12
29.16
29.19
34.68
34.65
34.63
15.8
50.8956
47.1666
43.6714
29.23
34.59
17.6
48.3178
44.8454
41.5851
29.28
34.56
19.4
45.8860
42.6525
39.6112
29.32
34.52
21.2
43.5912
40.5800
37.7429
29.35
34.50
23
41.4249
38.6207
35.9739
29.39
34.47
24.8
39.3792
36.7676
34.2983
29.43
34.43
26.6
37.4465
35.0144
32.7108
29.46
34.39
28.4
35.6202
33.3552
31.2062
29.52
34.36
30.2
33.8936
31.7844
29.7796
29.55
34.32
32
33.8
32.2608
30.7162
30.2968
28.4267
28.8875
27.1431
21
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29.59
29.62
34.30
34.27
Domestic air conditioner
Functions and Control
35.6
29.2545
27.5519
25.9250
29.68
34.23
37.4
27.8708
26.2858
24.7686
29.71
34.20
39.2
26.5605
25.0851
23.6704
29.75
34.16
41
25.3193
23.9462
22.6273
29.79
34.12
42.8
24.1432
22.8656
21.6361
29.84
34.09
44.6
23.0284
21.8398
20.6939
29.88
34.05
46.4
21.9714
20.8659
19.7982
29.93
34.02
48.2
20.9688
19.9409
18.9463
29.97
33.96
50
20.0176
19.0621
18.1358
30.00
33.93
51.8
19.1149
18.2270
17.3646
30.06
33.89
53.6
18.2580
17.4331
16.6305
30.09
33.85
55.4
17.4442
16.6782
15.9315
30.15
33.82
57.2
16.6711
15.9601
15.2657
30.18
33.78
59
15.9366
15.2770
14.6315
30.24
33.73
60.8
15.2385
14.6268
14.0271
30.27
33.69
62.6
14.5748
14.0079
13.4510
30.33
33.66
64.4
13.9436
13.4185
12.9017
30.36
33.62
66.2
68
13.3431
12.7718
12.8572
12.3778
12.3223
11.8780
30.42
30.45
33.57
33.53
69.8
12.2280
11.8126
11.4011
30.51
33.49
71.6
11.7102
11.3267
10.9459
30.54
33.44
73.4
11.2172
10.8634
10.5114
30.60
33.40
75.2
77
10.7475
10.3000
10.4216
10.0964
10.0000
9.7000
30.65
30.65
33.35
33.35
78.8
9.8975
9.5974
9.2980
30.63
33.37
80.6
9.5129
9.2132
8.9148
30.56
33.34
82.4
9.1454
8.8465
8.5496
30.49
33.49
84.2
8.7942
8.4964
8.2013
30.43
33.55
86
8.4583
8.1621
7.8691
30.36
33.62
87.8
8.1371
7.8428
7.5522
30.29
33.67
89.6
7.8299
7.5377
7.2498
30.24
33.75
91.4
7.5359
7.2461
6.9611
30.16
33.80
93.2
7.2546
6.9673
6.6854
30.09
33.87
95
6.9852
6.7008
6.4222
30.02
33.93
96.8
6.7273
6.4459
6.1707
29.97
34.00
98.6
6.4803
6.2021
5.9304
29.89
34.05
100.4
6.2437
5.9687
5.7007
29.82
34.12
102.2
6.0170
5.7454
5.4812
29.75
34.20
104
5.7997
5.5316
5.2712
29.68
34.25
105.8
5.5914
5.3269
5.0704
29.61
34.32
107.6
5.3916
5.1308
4.8783
29.53
34.39
109.4
5.2001
4.9430
4.6944
29.46
34.45
111.2
5.0163
4.7630
4.5185
29.39
34.52
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Domestic air conditioner
Functions and Control
113
4.8400
4.5905
4.3500
29.32
34.59
114.8
4.6708
4.4252
4.1887
29.25
34.65
116.6
4.5083
4.2666
4.0342
29.17
34.72
118.4
4.3524
4.1145
3.8862
29.10
34.79
120.2
122
4.2026
4.0588
3.9686
3.7443
3.8287
3.6084
29.03
28.94
34.86
34.92
123.8
3.9206
3.6943
3.4780
28.87
34.99
125.6
3.7878
3.5654
3.3531
28.80
35.06
127.4
3.6601
3.4416
3.2332
28.72
35.13
129.2
3.5374
3.3227
3.1183
28.63
35.20
131
3.4195
3.2085
3.0079
28.56
35.28
132.8
3.3060
3.0989
2.9021
28.49
35.33
134.6
3.1969
2.9935
2.8005
28.40
35.40
136.4
3.0919
2.8922
2.7029
28.33
35.47
138.2
2.9909
2.7948
2.6092
28.26
35.55
140
2.8936
2.7012
2.5193
28.17
35.62
141.8
2.8000
2.6112
2.4328
28.09
35.69
143.6
2.7099
2.5246
2.3498
28.00
35.76
145.4
2.6232
2.4413
2.2700
27.93
35.83
147.2
2.5396
2.3611
2.1932
27.84
35.91
149
2.4591
2.2840
2.1195
27.75
35.98
150.8
2.3815
2.2098
2.0486
27.68
36.05
152.6
2.3068
2.1383
1.9803
27.59
36.12
154.4
2.2347
2.0695
1.9147
27.52
36.21
156.2
2.1652
2.0032
1.8516
27.43
36.28
158
2.0983
1.9393
1.7908
27.34
36.36
159.8
2.0337
1.8778
1.7324
27.27
36.43
161.6
1.9714
1.8186
1.6761
27.18
36.50
163.4
1.9113
1.7614
1.6219
27.09
36.57
165.2
1.8533
1.7064
1.5697
27.00
36.64
167
1.7974
1.6533
1.5194
26.91
36.73
168.8
1.7434
1.6021
1.4710
26.82
36.81
170.6
1.6913
1.5528
1.4243
26.74
36.88
172.4
1.6409
1.5051
1.3794
26.65
36.95
174.2
1.5923
1.4592
1.3360
26.56
37.04
176
1.5454
1.4149
1.2942
26.47
37.11
177.8
1.5000
1.3721
1.2540
26.38
37.18
179.6
1.4562
1.3308
1.2151
26.29
37.27
181.4
1.4139
1.2910
1.1776
26.20
37.35
183.2
1.3730
1.2525
1.1415
26.11
37.42
185
1.3335
1.2153
1.1066
26.02
37.51
186.8
1.2953
1.1794
1.0730
25.92
37.58
188.6
1.2583
1.1448
1.0405
25.83
37.67
23
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Domestic air conditioner
Functions and Control
190.4
1.2226
1.1113
1.0092
25.74
37.74
192.2
1.1880
1.0789
0.9789
25.65
37.83
194
1.1546
1.0476
0.9497
25.56
37.90
195.8
1.1223
1.0174
0.9215
25.45
37.99
197.6
1.0910
0.9882
0.8942
25.36
38.07
199.4
1.0607
0.9599
0.8679
25.27
38.16
201.2
1.0314
0.9326
0.8424
25.16
38.23
203
1.0030
0.9061
0.8179
25.07
38.32
204.8
0.9756
0.8806
0.7941
24.98
38.39
206.6
0.9490
0.8558
0.7711
24.87
38.48
208.4
0.9232
0.8319
0.7489
24.78
38.55
210.2
0.8983
0.8088
0.7275
24.67
38.64
212
0.8741
0.7863
0.7067
24.58
38.73
213.8
0.8507
0.7646
0.6867
24.48
38.80
215.6
0.8281
0.7436
0.6672
24.39
38.89
217.4
0.8061
0.7233
0.6484
24.28
38.98
219.2
0.7848
0.7036
0.6303
24.19
39.06
221
0.7641
0.6845
0.6127
24.08
39.15
222.8
0.7441
0.6661
0.5957
23.97
39.24
224.6
0.7247
0.6482
0.5792
23.88
39.33
226.4
0.7059
0.6308
0.5632
23.77
39.42
228.2
0.6877
0.6140
0.5478
23.67
39.49
230
0.6700
0.5977
0.5328
23.56
39.58
231.8
0.6528
0.5820
0.5183
23.47
39.67
233.6
0.6361
0.5667
0.5043
23.36
39.76
235.4
0.6200
0.5518
0.4907
23.25
39.85
237.2
239
0.6043
0.5891
0.5374
0.4775
0.5235
0.4648
23.14
23.04
39.94
40.01
240.8
0.5743
0.5100
0.4524
22.93
40.10
242.6
0.5600
0.4968
0.4404
22.82
40.19
244.4
0.5460
0.4841
0.4288
22.71
40.28
246.2
248
0.5325
0.5194
0.4717
0.4175
0.4597
0.4066
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22.60
22.50
40.37
40.46
Domestic air conditioner
System configuration
8 System configuration
8.1System configuration
After the installation and test operation of the room air conditioner have been completed, it should be
operated and handled as described below. Every user would like to know the correct method of operation
of the room air conditioner, to check if it is capable of cooling(or heating) well, and to know a clever method
of using it. In order to meet this expectation of the users, giving sufficient explanations taking enough time
can be said to reduce about 80% of the requests for servicing. However good the installation work is and
however good the functions are, the customer may blame either the room air conditioner or its installation
work because of improper handling. The installation work and handing over of the unit can only be
considered to have been completed when its handling has been explained to the user without using
technical terms but giving full knowledge of the equipment.
8.2 Instruction
25
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Domestic air conditioner
System configuration
Parts and Functions
Indoor Unit
Outdoor Unit
Air Purifying Filter
(inside)
Inlet
Emergency
Switch
Inlet grille
4
Outlet
Anion generator
Horizontal flap
(inside)
(adjust up and down air flow
Don't adjust it manually)
Vertical blade
Display board
(inside)
(adjust left and
right air fl ow)
OUTLET
CONNECTING PIPING
AND ELECTRICAL WIRING
INLET
DRAIN HOSE
Remote controller
Actual inlet grille may vary from the one shown in the Outer side of the controller
manual according to the product purchased
5. COOL button
Used to set COOL
SMART
operation.
SET TEMP. ROOM TEMP.
Display board
1
1 Signal receiver hole
2 Ambient temp.display
When receiving the remote
control signal, display the set
temperature.
3 COOL display
2
3
5
4
6
COOL
HEAT
FAN
DRY
CTD
11
AUTO
FAN
POWER SPEED
SOFT
ECO
iFP
4 HEAT display
5 HEALTH display
AM
PM
AUTO
AUTO
12
6. QUIET button
7. Display of each function
status
8. Operation mode display
TIMER ON OFF
13
9. Signal sending end device
10. Signal sending display
6 DRY display
QUIET
ON/OFF
14
COOL
.
HEAT
15
12. FAN SPEED display
Swing up/down display
swing left/right display
13. TIMER ON display
TIMER OFF display
CLOCK display
DRY
16
2
FAN
SPEED
11. TEMP display
ECO
14. ON / OFF button
17
1. FAN SPEED button
Used to select fan speed:
LOW, MED, HI, AUTO
2. SWING LEFT/RIGHT button
15. TEMP button
used to change setting
temperature
16. SWING UP/DOWN
button
17. ECO button
power saving function
3. DRY button
Used to set DRY operation.
4. HEAT button
Used to set HEAT operation.
(Cooling only unit do not
have displays and functions
related with heating.)
26
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Domestic air conditioner
System configuration
Operation
2
Inner side of the controller
SMART
COOL
HEAT
FAN
DRY
CTD
SET TEMP. ROOM TEMP.
English
AUTO
FAN
POWER SPEED
SOFT
ECO
iFP
the panel display “01”, the
operating power is 100W;
when the panel display
“02”, the operating power
is 200W, and so forth)
AM
PM
21. POWER button
AUTO
AUTO
25
26
QUIET
24
27
23
SMART
SLEEP
10
22
LIGHT
21
28
29
30
CHILD
LOCK
31
32
20
33
19
18
18. CODE button
Used to select CODE A or B
with a press, A or B will be
displayed on LCD. Please
select A without special
explanation.
20. INQUIRE button
Inquire the external
environmental temperature
and the operating power
of the machine. (e.g. when
Load the battery, then put on the cover again.
Clock set
23. HEALTH AIRFLOW button
1 Press CLOCK button,
24. HEALTH button
25. SMART button
Used to set SMART
operation. (This function
is unavailable on some
models.)
“+” or “-” to set
2 Press
correct time.
26. SLEEP button
FRESH
19. RESET button
When the remote controller
appears abnormal, use
a sharp pointed article to
press this button to reset
the controller normal.
3
22. LIGHT button
Control the lightening and
extinguishing of the indoor
LED display board.
TIMER ON OFF
Load the batteries as illustrated. 2 R-03 batteries,
resetting key (cylinder); Be sure that the loading is
in line with the “+”/“-”;
27. 10 ºC button
special heating set
function: 10 degree
heating maintaining
(valuable for RS)
AM
PM
QUIET
28. CHILDLOCK button
If pressed, the other
buttons will be disabled.
Press it once again, lock
will be cancelled.
SMART
SLEEP
10
LIGHT
29. FRESH button
CHILD
LOCK
FRESH
Each press will increase or
decrease 1min. If the button is
kept pressed, time will change
quickly.
3
30. TIMER ON / OFF button
31. HOUR button
used to change clock or
timer
press CONFIRM, “AM” and
starts working.
32. CANCEL/CONFIRM
button
clock settings.
33. CLOCK button
The following functions and related displays are not
available: 20
Loading of the battery
1
Note:
The distance between the signal transmission head and
the receiver hole should be within 7m without any obstacle
change-over wireless telephone is installed in the type
in receiving the signals, so the distance to the indoor unit
should be shorter.
Full display or unclear display during operation indicates the
batteries have been used up. Please change batteries.
If the remote controller can’t run normally during operation,
please remove the batteries and reload several minutes later.
Remove the battery cover;
Hint:
Remove the batteries in case unit won’t be in usage for
a long period. If there are any display after taking-out,
just need to press reset key.
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27
Domestic air conditioner
System configuration
Operation
COOL,HEAT and DRY Operation
QUIET Operation
1
Unit start.
2 Select operation mode.
SOFT
AM
AM
QUIET
QUIET
QUIET
Press the COOL button on
the remote control. When
QUIET Operation
.
.
COOL appears on the remote
control, the display board will
turn BLUE.
FAN
SPEED
FAN
SPEED
ECO
QUIET
ECO
Press the HEAT button on the remote control. When HEAT
appears on the remote control, the display board will turn
RED.
You can use this function when silence is needed for rest or
reading.
For each press, SOFT is displayed Air conditioner starts
POWER function operation. In SOFT operation mode, fan
Press the DRY button on the remote control. When DRY
speed automatically takes low speed of AUTO fan mode.
appears on the remote control, the display board will turn
Press SOFT button again, SOFT disappears, the operation
CYAN.
stops.
1. In DRY mode, when room temperature becomes
lower than temp. setting +35.6°F, unit will run
intermittently ai LOW speed regardless of FAN
setting.
2. Remote controller can memorize each operation
status. When starting it next time, just press ON/
OFF button and unit will run in previous status.
28
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Domestic air conditioner
System configuration
Operation
1
TEMP button.
1 Press
Every time the button is
pressed, temp. setting
increases 32.9 ºF.
Every time the button is
pressed, temp. setting
decreases 32.9 ºF.
AM
For each press of “
displays as follows according to
different operation modes:
AM
QUIET
” button, air
QUIET
COOL/DRY:
.
.
.
Unit will start running to reach the
temp. setting on LCD.
FAN
SPEED
HEAT:
SMART:
ECO
FAN
SPEED
ECO
Initial state
2 FAN Operation
2
Press FAN SPEED button. For each press, fan speed
changes as follows:
For each press of “
displays as follows:
” buttor, remote controller
remote controller:
LOW
MED
HI
AUTO
Initial state
Unit will run at selected fan speed.
When humidity is high, condensate water might occur
at air outlet if all vertical louvers are adjusted to left or
right.
The temperature can be increased or decreased by
0.5 ºC while operating the remote control, but the
display board of the air conditioning unit only displays
integral degrees. For example, when the remote
control displays a temperature of 76.1 ºF, the display
board of the air conditioning unit will only show 75.2 ºF.
position for a long time in COOL or DRY mode,
otherwise, condensate water might occur.
better air circulation.
29
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Domestic air conditioner
System configuration
Operation
HEALTH Operation
HEALTH AIRFLOW Operation
The water-ion generator in the
The setting of
airconditioner can generate a lot
of anion effectively balance the
function
quantity of position and anion in
the air and also to kill bacteria
and speed up the dust sediment
appears on the display. Avoid
AM
the body.
AM
air in the room.
QUIET
SMART
LIGHT
again,
QUIET
appears on the display.
direct to the body.
SLEEP
SMART
Press HEALTH
button
CHILD
LOCK
LIGHT
FRESH
SLEEP
CHILD
LOCK
The cancel of
FRESH
function
For each press,
is displayed
Air conditioner starts health anion
function operation.
and outlet grills of the air conditioner are opened, and
the unit goes on working under the condition before the
aureol: “green”
grille will close automatically.
Notice:
Cannot pull direct the outlet grille by hand. Otherwise, the
grille will run incorrectly. If the grille is not run correctly,
stop for a minute and then start, adjusting by remote
controller.
Remote controller can memorize each operation status.
when starting it next time, just press ON/OFF button and
unit will run in previous status.
Press HEALTH button for twice press,
disappears, the operation stops.
Note:
2. In heating, it is better to select the mode.
3. In cooling, it is better to select the mode.
4. In cooling and dry, using the air conditioner for a
long time under the high air humidity, a phenomenon
falling drips of water occurs at the outlet grille.
5. Select the appropriate fan direction according to the
actual conditions.
When indoor fan motor is running, it has healthy
process function. (It’s available under any mode)
When the fan in the indoor unit does not work, the
health lamp lights up, but the anion generator does
not release anion.
30
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Domestic air conditioner
System configuration
Operation
POWER Operation
TIMER Operation
Set Clock correctly before starting Timer operation. You can
let unit start or stop automatically a following times: Before
you wake up in the morning, or get back from outside or
after you fall asleep at night.
AUTO
POWER
your desired operation
1 Select
mode.
POWER Operation
When you need rapid cooling,
Select your desired
TIMER ON.
you can use this function.
AM
Remote controller: “TIMER ON”
QUIET
AM
SMART
TIMER ON
Select your desired
TIMER OFF.
SLEEP
QUIET
LIGHT
Remote controller: “TIMER OFF”
CHILD
LOCK
SMART
FRESH
SLEEP
LIGHT
CHILD
LOCK
2 Time setting.
FRESH
For each press,
is displayed Air conditioner
Every time the button is pressed,
time setting increases or decreases
starts POWER function operation.
In COOL mode, fan speed automatically takes high
1 min, if kept depressed, it will increase rapidly. It can be
adjusted within 24 hours.
speed of AUTO fan mode.
Press POWER button again,
POWER
disappears, the
operation stops.
3
“ON” or “OFF”
TIMER ON
OFF / TIMER ON
OFF
procedure in “Time setting for TIMER OFF”
Remote controller: TIMER ON
OFF
procedure in “Time setting for TIMER ON”
Remote controller: TIMER ON
Hints:
To cancel TIMER mode
During POWER operation, in rapid COOL mode,
the room will show inhomogeneous temperature
distribution.
Just press CANCEL button several times until TIMER
31
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OFF
Domestic air conditioner
System configuration
Operation
Comfortable SLEEP
3 hours then stops. Temp. is lower than temp. setting
so that room temperature won’t be too high for your
sleep.
Before going to bed, you can simply press the SLEEP
button and unit will operate in SLEEP mode and bring you
a sound sleep.
Unit stop
Temp. setting
Press SLEEP
button.
AUTO
Decreases35.6 ºF
3 hrs
3 hrs
1. In COOL, DRY mode
CHILD
LOCK
3. In SMART mode
further 6 hours then stops Temp.
is higher than temp. setting so
that room temperature won’t be
too low for your sleep.
FRESH
The unit operates in corresponding sleep mode, which
adapted to the automatically selected operation mode.
4. When quiet sleeping function is set to 8 hours the
quiet sleeping time can not be adjusted. When TIMER
function is set, the quiet sleeping function can’t be
set up. After the sleeping function is set up, if user
resets TIMER function, the sleeping function will be
cancelled; the machine will be in the state of timingon, if the two modes are set up at the same time, either
SLEEP
operation stops
SLEEP
operation starts
automatically, and the other mode will be cancelled.
Approx. 6hrs
1 hr
Power Failure Resume Function
Rises 33.8ºF
not start running unless 3 minutes have elapsed. When
the power resumes after power failure, the unit will run
automatically, and 3 minutes later the compressor starts
running.
Rises 33.8ºF
1 hr
Temp. setting
SLEEP
operation stops
In HEAT mode
higher than temp. setting. After
another 1 hours, temp. rises by
33.8ºFfurther.The unit will run for
SLEEP
Rises 33.8 ºF
SLEEP
operation starts
1 hours after SLEEP mode
starts, temp. will become 33.8ºF
QUIET
LIGHT
1 hr
Operation Mode
AM
SMART
Decreases 35.6 ºF
1 hr
Unit stop
Note to the power failure resume:
In COOL, DRY mode
enter function after hearing four sounds. And press the
2. In HEAT mode
this function after hearing two sounds.
1 hours after SLEEP mode starts, temp will become
35.6 ºF lower than temp. setting. After another 1 hours,
temp decrease by 35.6 ºF further . After more another
3 hours, temp. rises by 33.8ºF further. The unit will run for
further
32
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Domestic air conditioner
System configuration
Operation
SMART Operation
ECO Operation
(This function is unavailable on
some models)
One key can give you a
SMART
Automatic adjusting with the environmental temperature,
running with power saving.
comfortable room!
The air conditioning unit can
AUTO
judge the indoor temperature and
Press ECONOMY button “ ECO ” is
humidity, and make the adjustment
accordingly.
AM
displayed on the remote controller,
ECO
AM
unit will run in ECONOMY operation.
QUIET
SMART
LIGHT
SLEEP
CHILD
LOCK
FRESH
SMART
QUIET
SMART start
.
Press ON/OFF button, unit starts.
” is
Press SMART button “
displayed on the remote controller
Now, the display board of the air
Press ECONOMY button
conditioning unit will turn WHITE.
FAN
SPEED
ECO
again, ECONOMY disappears,
the operation stops.
aureol: “ white”
SMART FRESH
SMART Defrost
SMART FAN SPEED
SMART FAN HEALTH
SMART DRY
SMART SOFT
SMART Control temperature
or
The power saving function only works under the
cooling, heating or dehumidifying mode, after the
power saving function is set, press the sharp,
mute, sleep, or smart key to exit the power saving
function.
SMART stops
Under the cooling, heating and dehumidifying mode,
press the smart key to enter the smart function. Under
the smart running mode, when the air conditioning is
running, it will automatically select cooling, heating,
dehumidifying or blowing mode as When the smart
function is running, press the “cooling” “heating” or
“dehumidifying” key to switch to the other mode, you
will exit from the smart function.
After the power saving is set, the host machine will
automatically adjust the setting temperature, and
automatically control the switch of the compressor,
which may be inconsistent with the user’s setting.
The power saving function is more effective after
the air conditioning has been running for a long
time (more than 2 hours)
33
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Domestic air conditioner
System configuration
Operation
FRESH Operation
Emergency operation and test operation
Exhaust the vitiated air from the room, and inhale fresh air.
(This function is unavailable on some models.)
Emergency Operation:
Use this operation only when the remote controller is
defective or lost, and with function of emergency running,
air conditoner can run automatically for a while.
When the emergency operation switch is pressed, the
“Pi” sound is heard once, which means the start of this
operation.
is displayed
Press FRESH button “
on the remote controller and Now, the
emergency operation starts, the unit will run automatically in
the following modes:
Pi
display board of the air conditioning
AM
Room
Designated Timer Fan Operation
temperature temperature mode speed
mode
unit will turn GREEN, and the changeQUIET
SMART
SLEEP
for-fresh-air function operation begins.
Above 75.2°F
75.2 ºF
No
AUTO
COOL
Note: Since this model has no fresh air
Below 75.2ºF
75.2 ºF
No
AUTO
HEAT
unit installed, there is no change for the
LIGHT
CHILD
LOCK
It is impossible to change the settings of temp. and fan
speed, It is also not possible to operate in timer or dry mode.
operating status.
FRESH
Test operation:
Test operation switch is the same as emergency switch.
Use this switch in the test operation
when the room temperature is below
60.8ºF, do not use it in the normal
operation.
Continue to press the test operation
switch for more than 5 seconds.
After you hear the “Pi” sound twice,
For twice press , the display “
”
disappears and the change-for-freshair function operation is canceled.
Pi Pi
Note:
If the unit didn’t install change-for-fresh-air electrical
For smart Use of The Air Conditioner
engine, change-for-fresh-air function is not available.
Air Filter cleaning
1. Open the inlet grille by pulling
Press “HEALTH” button when operating in heating
pressing “HEALTH” button, it displays in green for
3 seconds, then red for 10 seconds, and green for
3 seconds, repeating this cycle.
If you press “FRESH” button in heating or health
operating mode, a purple display appears in addition
to the above red and green display cycle; that is,
purple for 3 seconds, red for 10 seconds, green for
3 seconds, purple for 3 seconds, red for 10 seconds,
green for 3 seconds, repeating this cycle.
2.
3.
4.
it upward
downward.
Use a vacuum cleaner to remove dust, or wash
completely in the shade.
the “FRONT” indication is facing
to the front. Make sure that the
Once every
two weeks
the stopper. If the right and left
defects.
5. Close the inlet grille
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34
Domestic air conditioner
System configuration
IMPORTANT INFORMATION REGARDING THE REFRIGERANT USED
Contains fluorinated greenhouse gases
covered by the Kyoto Protocol
R410A
1=
kg
2
2=
kg
1+2=
kg
1
F
EUROPEAN REGULATIONS
CONFORMITY FOR THE MODELS
CE
All the products are in conformity with the following
European provision:
A
B
- Low Voltage Directive 2006/95/EC
-Electomagnetic CompatibilitY 2004/108/EC
C
D
ROHS
E
The products are fulfilled with the requirements in the
directive 2011/65/EU of the European parliament and of
council on the Restriction of the use of Certain Hazardous
Substances in Electrical and Electronic Equipment (EU
RoHS Directive)
This product contains fluorinated greenhouse gases covered by
the Kyoto Protocol. Do not vent into the atmosphere.
Refrigerant type:R410A
GWP* value:1975
GWP=global warming potential
Please fill in with indelible ink,
•1
the factory refrigerant charge of the product
•2
the additional refrigerant amount charged in the field and
• 1+2 the total refrigerant charge
on the refrigerant charge label supplied with the product.
The filled out label must be adhered in the proximity of the product
charging port (e.g. onto the inside of the stop value cover).
A contains fluorinated greenhouse gases covered by the Kyoto
Protocol
B factory refrigerant charge of the product: see unit name plate
C additional refrigerant amount charged in the field
D total refrigerant charge
E outdoor unit
F refrigerant cylinder and manifold for charging
WEEE
In accordance with the directive 2012/19/EU of the European
parliament, herewith we inform the consumer about the disposal requirements of the electrical and electronic products.
DISPOSAL REQUIREMENTS:
Your air conditioning product is marked with this
symbol.This means that electrical and electronic
products shall not be mixed with unsorted
household waste. Do not try to dismantle the
system yourself : the dismantling of the air
conditioning system,treatment of the refrigerant, of oil and of
other part must be done by a qualified installer in accordance
with relevant local and national legislation. Air conditioners
must be treated at a specialized treatment facility for reuse,
recycling and recovery. By ensuring this product is disposed
of correctly, you will help to prevent potential negative consequences for the environment and humen health. Please
contact the installer or local authority for more information.
Battery must be removed from the remote controller and disposed of separately in accordance with relevant local and
nationl legislation.
35
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Domestic air conditioner
System configuration
Installation Manual of Room Air Conditioner
Preparation
Necessary Tools for Installation
Selection of Installation Place
Indoor Unit - Select a location that is
● Torque wrench
(0.67 in,0.87in,1.02in )
● Hammer
● Nipper
● Hacksaw
● Pipe cutter
● Hole core drill
● Flaring tool
● Spanner(0.67,0.75 and 1.02in )
● Gas leakage detector or
● Knife
● Measuring tape
● Robust not causing vibration, where the unit can be supported s ufficiently.
● Not affected by heat or steam generated in the vicinity, and where the inlet and outlet of
the unit are not disturbed.
● Possible to drain easily, and where piping can be connected with the outdoor unit.
● Where conditioned air can be spread in a room evenly.
● Place where the distance of more than lm from televisions, radios, wireless apparatuses
● Reamer
soap-and-water solution
and fluorescent lamps 3 feet or approximately.
● In the case of fixing the remote controller on a wall, place where the indoor unit can
receive signals when the fluorescent lamps in the room are in use.
Power Source
Outdoor Unit - Select a location that is
● Less affected by rain or direct sunlight and is sufficiently ventilated.
● Strong enough to bear the unit, where vibration and noise are not increased.
● Not causing a nuisance to neighbors due to discharged air or noise.
● A distance marked  is available as illustrated in the below figure.
● All wiring to the unit must be in accordance with the National Electric code
and local ordinances.
Drawing for the installation of indoor and outdoor units
The models adopt HFC free refrigerant R410A
Attention must be paid to
the pitch of drain hose
more than 5cm
（2 inches）
Optional parts for piping
A Non-adhesive tape
B Adhesive tape
C Saddle (L.S) with screws
Connecting electric cable
for indoor and outdoor
E Drain hose
G
more than
10cm
D
(4 inches)
F Insulating material
G Piping hole cover
Arrangement of piping
directions
more than10cm
（4 inches）
Rear left
F
A
Rear
right
Left
Floor fixing dimensions of the outdoor unit
(Unit: inch)
Z
X
Right
Y
C
Below
Model
more than10cm
more than10cm
X
Dimensions(inches)
x
y
z
（4 inches）
（4 inches）
HSU12VHGL-W
● The marks from A to
G in the figure are the
name of the parts.
● The distance between
the indoor unit and the
floor should be more
than 2m or 6 feet.
19 2/3
10 1/16
Fixing of outdoor unit
● Fix the unit to concrete or block with bolts
D
E
(10mm) securely.
● When fitting the unit to wall surface, roof or
more than 60cm
（24 inches）
5 1/2
●
rooftop, fix the unit securely in consideration
of earthquake and strong wind.
If vibration may affect the house, fix the unit
by attaching a vibration-proof mat.
more than 15cm
（5 7/8 inches）
The above picture is for reference only. Your product may look different.
Read this manual before installation
Explain the operation of the unit to the user according to this manual
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36
Domestic air conditioner
System configuration
Accessory parts
2
Remote controller (1)
Drain hose (1)
AAA dry battery (2)
Cushion (4)
Mounting plate (1)
Drain-elbow (1)
Plastic cap (4)
Ø4X25 Screw (4)
Making a Hole on the Wall and Fitting the Piping Hole Cover
● Make a hole of B mm / inches in diameter, slightly descending to outside the wall.
● Install piping hole cover and seal it off with putty after installation
Pitch downward for drainage
Wall hole
09k/12k : B= 60mm(2 3/8 inches)
18k/24k : B=70mm(2 3/4 inches)
ØBmm
Pipe supporting plate (1)
Indoor side
Selection of pipe
Model
(Section of wall hole)
Liquid pipe (Ø)
Gas pipe (Ø)
6.35mm (1/4 ")
9.52mm (3/8 ")
3
HSU12VHGL-W
Thickness of wall
Outdoor side
G Piping hole pipe
Installation of the Indoor Unit
Drawing of pipe
NOTE：The thickness of the pipe must be 0.8mm(1/16”) at least.
[ Rear piping ]
● Draw pipes and the drain hose, then fasten them with the adhesive tape
Indoor unit
1
[ Left·Left-rear piping ]
● In case of left side piping, cut away, with a nipper, the lid for left piping.
● In case of left-rear piping, bend the pipes according to the piping direction to
the mark of hole for left-rear piping which is marked on insulation materials.
Fitting of the Mounting Plate and Positioning of the wall Hole
1. Insert the drain hose into the carity of heat insulation materials of indoor unit.
2. Insert the indoor/outdoor electric cable from backside of indoor unit, and pull it
out on the front side, then connect them.
3. Coat the flaring seal face with refrigerant oil and connect pipes.
Cover the tubing connection with insulation materials closely, and with adhesive
tape.
When the mounting plate is first fixed
1. Carry out, based on the wall studs or lintels, a proper leveling for the plate
to be fixed against the wall, then temporarily fasten the plate with one nail.
2. Ensure the proper level of the plate, by hanging a thread with a
weight from the central top of the plate, then fasten the plate.
Indoor/outdoor electric cable
3. Find the wall hole location A using a measuring tape
Insulation
material
Lid for right
piping
B= 60mm
B= 60mm
Lid for left piping
Lid for under piping pipe
Piping
Pipe supporting
plate
Drain hose
30mm
A=145mm
30mm
Fix with adhesive tape
A=145mm
● Indoor/outdoor electric cable and drain hose must be bound with refrigerant
piping with adhesive.
[ Other direction piping ]
A=125mm
30mm
B= 70mm
● Cut away, with a nipper, the lid for piping according to the piping direction and
then bend the pipe according to theposition of wall hole. When bending, be
careful not to crush pipes.
● Make sure that the wires connecting the indoor and outdoor units are not covered
by the refrigeration piping insulation and are long enough to connect to the terminal
block on the indoor unit.
Fixing the indoor unit body
Pay attention to the following points before installation of machine:
1. Take out cushion blocks on
the left and right angle beads
as shown in the following
Figure.
● Hang the unit body onto the upper notches of the
mounting plate. Move the body from side to side to verify
its secure fixing.
● In order to fix the body onto the mounting plate,hold up
the body from the underside and then put it down
perpendicularly.
mounting plate
Unloading of indoor unit body
2. Remove 2 gaskets under the
cross-flow fan.
●When you unload the indoor unit,please use
your hand to raise the body , then
lift the bottom of the body outward
slightly and lift the unit until
it leaves the mounting plate.
3. Clean the burr on the surface of fracture to avoid the power
wire from being scratched after removing the virtual opening
of the outgoing line slot on the case by hands in indoor
power-on process.
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agraffe
37
mounting plate
Domestic air conditioner
4
Connecting the indoor/outdoor Electric Cable
Removing the wiring cover
Installation of Outdoor Unit
1
Install according to the instructions on the 1st page of this manual
● Remove terminal cover at right bottom corner of indoor unit, then take off
wiring cover by removing its screws.
System configuration
Outdoor unit
Connection of pipes
2
● When bending the interconnect tubing, ensure the radius is at least 1 1/4" to 1 3/4",
When connecting the cable after installing the indoor unit
30mm to 40mm to ensure against crushing the tubing.
● Connecting the pipe of gas side first makes working easier.
● Ensure the interconnecting tubing is approved for R410A.
1. Insert the cable from the outside into the unit through the same
hole that has the interconnecting tubing.
Half union
2. Pull out the cable on the front side, and connect the cable
making a loop.
Forced fastening without careful centering may
damage the threads and cause a leakage of gas.
Flare nut
When connecting the cable before installing the indoor unit
●
●
●
Fastening torque
18N.m/13.3Ft.lbs
Liquid/Gas side9.52mm(3/8") 42 N.m/30.1Ft.lbs
Insert the cord from the back side of the unit, then pull it out on the front side.
Spanner
Fasten the unit wire harness to the conduit holder using the lock nut.
Position the conduit holder to its original state using screw.
Pipe Diameter(ǿ)
Liquid side6.35mm(1/4")
Torque wrench
Gas side 12.7mm(1/2")
55N.m/40.6Ft.lbs
Gas side 15.88mm(5/8")
60 N.m/44.3Ft.lbs
Ensure that no dirt or debris enters the tubing. The standard tubing length is 25 ft/7.5M.
If a different length is required, adjust the refrigerant amount by 1/2 oz/ft, 50 g/M for the
9k, 12k and 18k models. For the 24k model, adjust by 1/2 oz/ft, 50 g/M.Before opening
the service valves, evacuate the interconnecting tubing and indoor unit. Follow the
instruction in section 5 on page 4.
CAUTION
Note
When connecting the cable, confirm the terminal number of indoor and
outdoor units carefully. If wiring is not correct, the unit will not operate
properly and could cause a defect.
Outdoor unit
Indoor unit
B
A
Indoor unit
A
Outdoor unit
4wire 14AWG
(4G0.75mm )
Control Wiring
Amax
• Max.Elevation:
= 32.8ft / 10m (09k / 12k)
Outdoor unit
= 50ft / 15m (18k / 24k)
B
HSU12VHGL-W
Power cable:
Indoor unit
B
Outdoor unit
A
the elevation A is more
• Inthancase16.4ft
/ 5m, oil trap shoud be
Oil trap
installed every 5~7m(16.4ft-23ft)
Indoor unit
Length: Bmax
• Max.
= 50ft / 15m (09k / 12k)
= 83.3ft / 25m (18k / 24k)
3wire with ground 14AWG
1. If the supply cord is damaged, it must be replaced by the manufacturer or its
service agent or a similar qualified person. The type of connecting wire is
H05RN-F or H07RN-F.
2. If the fuse on PC board is broken please change it with the type of
T.3.15A/250VAC (Indoor), T.25A/250VAC (Outdoor).
3. The wiring method should be in line with the local wiring standard.
4. Use an HVACR circuit breaker or time delay fuse.
Cutting and Flaring Work of Piping
● Pipe cutting is carried out with a pipe cutter and burs must
● After inserting the flare nut, flaring work is carried out.
A
Flare tool for R410A
Conventional flare tool
Clutch-type
clutch-type(Rigid-type) Wing-nut type (Imperial-type)
0~0.5mm
0~1/51 inch
1.5~2.0mm
1/17 ~1/8 inch
1.0~1.5mm
3/76 ~1/17 inch
1.Cut pipe
Flare tooling die
2.Remove burs
3.Insert the flare nut
Correct
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4.Flare pipe
Incorrect
Lean
38
be removed.
Damage of flare
Crack
Partial
Too outside
Domestic air conditioner
System configuration
3
●
●
●
4
1
Connection
Loosen the screws on terminal block and insert the wires fully into terminal
block, then tighten the screws.
If wiring is not correct, the unit will not operate properly and it could cause a
defect in the unit.
Fix the cable with a clamp.
Power Source Installation
● The power source must be exclusively used for air conditioner.
● In the case of installing an air conditioner in a moist place, please install an earth leakage breaker.(GFCI)
● For installation in other places, use an HVACR circuit breaker of time delay fuse.
2
Attaching Drain-Elbow
On Drainage
● Please install the drain hose and ensure downward flow.
● Please don’t do the drainage as shown below.
● If the drain-elbow is used,
please attach as shown in figure.
(Note: Only for heat pump unit.)
5
1.
Less than
5cm
Purging Method:To use vacuum pump
It becomes The end is imm- It waves. The gap with the
There is the bad
high midway. ersed in water.
ground is too small. smell from a ditch
Detach the service port’s cap of 3-way valve, and the valve cap for 2-way valve
and 3-way valve. Connect the service port to the low side of the gauge manifold
and connect the vacuum pump to the center port of the manifold.
● Please pour water in the drain pan of the indoor unit, and confirm that drainage
is proper.
2. Open the handle on the low side of the gauge manifold and operate vacuum pump.
● In case that the attached drain hose is in a room, please
to the hose to prevent condensation.
3. Vacuum the tubing for at least 15 minutes. The vacuum level on the low side gauge
should be 29.9 in of Hg, 76 cm of Hg, 0.1 MPa. when vacuuming is complete, close
the valve on the manifold and turn off the vacuum pump. The vacuum level should
hold for 1-2 minutes. If the vacuum level does not hold, check the flared connections
and repeat this step.
■ Refrigerant charge label
Contains fluorinated greenhouse gases
covered by the Kyoto Protocol
4. Open the 2-way valve 1/4 turn. After 5-6 seconds, close the valve and inspect for
leaks with a leak detector or soap solution.
5. No gas leakage? Go to step 6.
In case of a leak, try tightening the flare connections to fix the leak. If the
leak stops, go to step 6. If the leak continues, check the flare connections
and repair as needed, then go back to step 3. then proceed step 6. If leak
continues, remove the refrigerant used for the leakage check and flare
tubes again. Repeat vacuum and leak and if no leakage, proceed to step 6.
8. After attaching the caps, check for leakage around the caps.
Step 2.
Open
Gaugemanifold(for R410A)
Gauge manifold
Tube(for R410A)
Step 4.
Step 3.
Close
Vacuum pump
Step 6.
2-way valve
3-way valve
kg
2
2=
kg
1+2=
kg
A
B
C
D
E
This product contains fluorinated greenhouse gases covered by
the Kyoto Protocol. Do not vent into the atmosphere.
Refrigerant type:R410A
GWP* value:1975
GWP=global warming potential
Please fill in with indelible ink,
•1
the factory refrigerant charge of the product
•2
the additional refrigerant amount charged in the field and
• 1+2 the total refrigerant charge
on the refrigerant charge label supplied with the product.
The filled out label must be adhered in the proximity of the product
charging port (e.g. onto the inside of the stop value cover).
A contains fluorinated greenhouse gases covered by the Kyoto
Protocol
B factory refrigerant charge of the product: see unit name plate
C additional refrigerant amount charged in the field
D total refrigerant charge
E outdoor unit
F refrigerant cylinder and manifold for charging
leakage, replace the service port and valve caps.
2-way valve Liquid Side
3-way valve Gas Side
1=
F
valve completely.
Step 1.
R410A
1
6. Detach the charge hose from the service port, open 2-way valve and 3-way
7. To prevent the gas
apply insulation to
2-way valve
3-way valve
O
Open 90
■ Check for Installation and Test Run
Step 7.
2-way valve 3-way valve
■ Please kindly explain to our customers how to operate
through the instruction manual.
2-way valve
3-way valve
Check Items for Test Run
Valve cap
CAUTION
● If the refrigerant of the air conditioner leaks, it is necessary to discharge all the
refrigerant. Repair the leak, vacuum the unit then charge the liquid refrigerant
into air conditioner according to the amount marked on the name plate.
● Please do not let other cooling medium, except specified one (R410A), or air
enter into the cooling circulation system. This could cause high pressure and
could cause a leak and lead to personal injuries.
39
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in boxes
Gas leak from interconnecting tubing?
Installation is on the interconnecting tubing?
Are the connecting wirings of indoor and outdoor firmly
inserted to the terminal block?
Is the connecting wiring of indoor and outdoor firmly fixed?
Is drainage securely carried out?
Is the ground wire securely connected?
Is the indoor unit securely fixed?
Is power source voltage the local codes?
Is there any noise?
Are the lights near the unit working normally?
Are cooling and heating (when in heat pump) performing normally?
Is the operation of room temperature control normal?
Valve cap
Service port cap
Put check mark
Domestic air conditioner
System configuration
Maintenance
For Smart Use of The Air Conditioner
Setting of proper room
temperature
Remote Controller
Do not block the air inlet
or outlet
Indoor Body
wipe the air conditioner by using a
soft and dry cloth.For serious stains,
use a neutral detergent diluted with
water.Wring the water out of the
cloth before wiping,then wipe off the
detergent completely.
Proper
temperature
Do not usewater,wipe the controller
with a dry cloth.Do not use glass
cleaner or chemical cloth.
Do not use the following for cleaning
Use the timer effectively
Close doors and windows
during operation
Gasoline,benzine, thinner or cleanser
may damage the coating of the unit.
Hot water over 40 O C(104O F) may
cause discoloring or deformation.
Air Filter cleaning
During cooling operation
prevent the penetration
ofdirect sunlight with
curtain or blind
Open the inlet grille by pulling it upward.
Remove the filter.
Push up the filter's center tab slightly until it is
released from the stopper, and remove the filter downward.
Clean the filter.
Use the louvers effectively
If the unit is not to be used
for a long time, turn off the
power supply main switch.
Use a vacuum cleaner to remove dust, or wash the filter with
water.After washing, dry the filter completely in the shade.
Attach the filter.
Attach the filter correctly so that the "FRONT" indication
is facing to the front.Make sure that the filter is
completely fixed behind the stopper.If the right
and left filters are not attached correctly, that
may cause defects.
OFF
Once every
two weeks
Close the inlet grille.
Replacement of Air Purifying Filter
1.Open the lnlet Grille
4.Attach the standard air filter
Prop up the inlet grille by using a
small device named grille-support
which located in the right side of
the indoor unit.
(Necessar y installation)
ATTENTION:
The white side of the photocatalyst air purifying filter
face outside,and the black side face the unit The green
side of the bacteria-killing medium air purifying filter face
outside,and the white side face the unit.
2.Detach the standard air filter
Slide the knob slightly upward to
release the filter, then withdraw it.
5.Close the Inlet Grille
Close the Grille surely
NOTE:
Detach old Air Purifying Filter
The photocatalyst air purifying filter will be solarized in fixed
time. In normal family, it will be solarized every 6 months.
The bacteria-killing medium air purifying filter will be used
for a long time,no need for replacement. But in the period
of using them ,you should remove the dust frequently by
using vacuum cleaner or flaping them lightly,otherwise ,
its performance will be affected.
3.Attach Air Purifying Filter
Put air purifying filter appliances into the
right and left filter frames.
Please keep the bacteria-killing medium air purifying filter in
the cool and dry conditions avoid long time directly sunshine
when you stop using it,or its ability of sterilization will be
reduced.
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Domestic air conditioner
System configuration
Cautions
WARNING
Please call Sales/Service Shop for the Installation.
Do not attempt to install the air conditioner by yourself because improper works
may cause electric shock, fire, water leakage.
When abnormality such as burnt-small found,
immediately stop the operation button and
contact sales shop.
WARNING
Use an exclusive
power source
with a circuit
breaker
Check proper
installation of the
drainage securely
STRICT
ENFORCEMENT
OFF
Connect power supply cord
to the outlet completely
STRICT
ENFORCEMENT
Use the proper voltage
STRICT
STRICT
ENFORCEMENT
ENFORCEMENT
Take care not to damage
Do not use power supply
the power supply cord.
cord in a bundle.
PROHIBITION
PROHIBITION
PROHIBITION
Do not start or stop the
operation by disconnecting
the power supply cord
and so on.
1.Do not use power supply cord extended
or connected in halfway
2.Do not install in the place where there is any
possibility of inflammable gas leakage around the unit.
3.Do not get the unit exposed
to vapor or oil steam.
PROHIBITION
Do not insert objects into the air
inlet or outlet.
Do not channel the air flow directly
at people, especially at infants or
the aged.
PROHIBITION
Do not try to repair or
reconstruct by yourself.
Connect the earth
cable.
earthing
PROHIBITION
CAUTION
Do not use for the purpose of storage of
food, art work, precise equipment,
breeding, or cultivation.
PROHIBITION
Do not install the unit near a fireplace
or other heating apparatus.
Take fresh air occasionally especially
when gas appliance is running at the
same time.
STRICT
ENFORCEMENT
Check good condition of the
installation stand
PROHIBITION
Do not place animals or plants in
the direct path of the air flow
PROHIBITION
PROHIBITION
Do not pour water onto the unit
for cleaning
PROHIBITION
PROHIBITION
Do not place any objects on or
climb on the unit.
PROHIBITION
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Do not operate the switch with
wet hand.
Do not place flower vase or water
containers on the top of the unit.
PROHIBITION
Domestic air conditioner
Trouble shooting
Cautions
Before asking for service, check the following
first.
Phenomenon
The system
does not restart
immediately.
Noise is heard
Normal
Performance
inspection
Smells are
generated.
Mist or steam are
blown out.
In dry mode, fan
speed can’t be
changed.
Do not obstruct or cover the ventilation grille of the air
conditoner.Do not put fingers or any other things into the
inlet/outlet and swing louver.
This appliance is not intended for use by persons (including children)
with reduced physiced, sensory or mental capabilities or lack of
experience and knowledge, unless they have been given supervision
or instruction concerning use of appliance by person responsible for
their safety. Children should be supervised to ensure that they do not
play with the appliance.
Cause or check points
When unit is stopped, it won't restart
immediately until 3 minutes have
elapsed to protect the system.
When the electric plug is pulled out
and reinserted, the protection circuit
will work for 3 minutes to protect the
air conditioner.
During unit operation or at stop,
a swishing or gurgling noise may
be heard.At first 2-3 minutes after
unit start, this noise is more noticeable.
(This noise is generated by
refrigerant flowing in the system.)
During unit operation, a cracking
noise may be heard.This noise is
generated by the casing expanding
or shrinking because of
temperature changes.
Should there be a big noise from
air flow in unit operation, air
filter may be too dirty.
This is because the system
circulates smells from the interior
air such as the smell of furniture,
paint, cigarettes.
Specifications
The refrigerating circuit is leak-proof.
The machine is adaptive in following situation
1.Applicable ambient temperature range:
Maximum:D.B/W.B 89.6oF/73.4oF
Cooling
Multiple
check
Maximum:D.B/W.B114.8 o F/79o F
64.4o F
Maximum:D.B
80.6o F
Minimum: D.B
59oF
Outdoor Minimum: D.B
Outdoor
Maximum:D.B/W.B75.2o F/65 °F
Minimum:D.B/W.B19.4oF/17.6o F
o
o
Outdoor Maximum:D.B/W.B75.2 F/64.4 F
(INVERTER)
During COOL or DRY operation,
indoor unit may blow out mist.
This is due to the sudden cooling
of indoor air.
Minimum:D.B
5 oF
2. If the power supply cord is damaged, it must be replaced by the
manufacturer or its service agent or a similar qualified person.
3.If the fuse of indoor unit on PC board is broken,please change
it with the type of T. 3.15A/ 250V. If the fuse of outdoor unit is
broken,change it with the type of T.25A/250V
In DRY mode, when room temperature
becomes lower than temp.
setting+35.6 o F,unit will run
intermittently at LOW speed
regardless of FAN setting.
4. The wiring method should be in line with the local wiring standard.
5. After installation, the power plug should be easily reached.
6. The waste battery should be disposed properly.
7. The appliance is not intended for use by young children or infirm
persons without supervision.
Is the air filter dirty?
Normally it should be cleaned
every 15 days.
Are there any obstacles before
inlet and outlet?
Is temperature set correctly?
Are there some doors or
windows left open?
Is there any direct sunlight
through the window during the
cooling operation?(Use curtain)
Are there too much heat sources
or too many people in the room
during cooling operation?
8. Young children should be supervised to ensure that they do not play
with the appliance.
9. Please employ the proper power plug, which fit into the power supply
cord.
10. The power plug and connecting cable must have acquired the local
attestation.
11.In order to protect the units,please turn off the A/C first, and at least
30 seconds later, cutting off the power.
42
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Indoor Minimum:D.B/W.B 69.8 o F/59° F
Indoor
Heating
Is power plug inserted?
Is there a power failure?
Is fuse blownout?
Poor cooling
System configuration
Domestic air conditioner
Seivice diagnosis
9.Dimensional drawings
10.Center of gravity
43
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Domestic air conditioner
11 Service Diagnosis
Seivice diagnosis
11.1 Caution for Diagnosis
The operation lamp flashes when any of the following errors is detected.
1. When a protection device of the indoor or outdoor unit is activated or when the thermistor malfunctions,
disabling equipment operation.
2. When a signal transmission error occurs between the indoor and outdoor units. In either case, conduct the
diagnostic procedure described in the following pages.
11.2 Parameter of primary electronic appliance
name
parameter
picture
Rated voltage:220-230V
Fan motor
Rated current:0.38A
Rated frequency: 50/60HZ
11.3 Problem Symptoms and Measures
Symptom
None of the units
operates
Operation
sometimes stops.
Check Item
Details of Measure
Check the power supply.
Check to make sure that the rated voltage is supplied.
Check the indoor PCB
Check to make sure that the indoor PCB is broken
Check the power supply.
A power failure of 2 to 10 cycles can stop air conditioner
operation.
Set the units to cooling operation, and compare the
Equipment
operates but
does not cool, or
does not heat
(only for heat
pump)
Check for faulty operation
temperatures of the liquid side connection pipes of the
of the electronic
connection section among rooms to check the opening and
expansion valve.
closing operation of the electronic expansion valves of the
individual units.
Diagnosis by service port
pressure and operating
Check for insufficient gas.
current.
Large operating
noise and
vibrations
Check the installation
condition.
Check to make sure that the required spaces for
installation (specified in the Technical Guide, etc.) are
provided.
44
Domestic
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air conditioner
Service diagnosis
11
Code indication
Indoor
displaying
panel code
indication
Indoor and
Outdoor
Indoor Malfunction
Outdoor
Malfunction
E7
Outdoor
Reference
fault description
(LED1 flash
Page
times)
15
Communication fault between indoor and
outdoor units
Page.56
E1
--
Room temperature sensor failure
Page.46
E2
--
Heat-exchange sensor failure
Page.46
E4
--
Indoor EEPROM error
Page .46
E14
--
Indoor fan motor malfunction
Page.48
F12
1
Outdoor EEPROM error
Page .46
F1
2
The protection of IPM
3
Overcurrent
F22
protection of
Page .51
AC electricity
for the outdoor model
Communication fault between the IPM and
Page .54
F3
4
F19
6
F27
7
F4
8
F8
9
Outdoor DC fan motor fault
Page.49
F21
10
Defrost temperature sensor failure
Page.46
outdoor PCB
Power voltage is too high or low
Page.53
Page.54
Compressor is lock-rotor or stopped
momentary
Overheat protection for Discharge
Page.55
Page.55
temperature
F7
11
Suction temperature sensor failure
Page.46
F6
12
Ambient temperature sensor failure
Page.46
F25
13
Discharge temperature sensor failure
Page.46
F13
16
Short of refrigerant
Page.47
F11
18
deviate from the normal for the compressor
Page.58
F28
19
Loop of the station detect error
Page.58
F2
24
Overcurrent of the compressor
Page.54
F23
25
E9
21
Overcurrent protection for single-phase of the
compressor
High work-intense protection
Page.54
Page.59
Domestic air conditioner
45
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Seivice diagnosis
11.4.1 Thermistor or Related Abnormality
E1: Room temperature sensor failure
Indoor display
E2: Heat-exchange sensor failure
Outdoor display
LED1 flash 10 times
Defrost temperature sensor failure
LED1 flash 11 times
Suction temperature sensor failure
LED1 flash 12 times
Ambient temperature sensor failure
LED1 flash 13 times
Discharge temperature sensor failure
Method of
malfunction detection
The temperatures detected by the thermistors are used to determine thermistor errors
Malfunction detection
conditions
when the thermistor input is more than 4.92V or less than 0.08V during compressor
operation.
Note: The values vary slightly in some models
Supposed causes
Troubleshooting
Faulty connector connection
Faulty thermistor
Faulty PCB
* Caution Be sure to turn off power switch before connect or disconnect connector,
or else
parts damage may be occurred.
Check the connector connection,
whether if it loose or misplug
YES
Re-connect
NO
*Thermistor resistance check
NO
Is the resistance is conformity
with normal temperature
YES
Replace the thermistor
Replace the indoor PCB
Thermistor resistance check method:
Remove the connector of the thermistor on the PCB, and measure the resistance of thermistor using tester. The
relationship between normal temperature and resistance is shown in the value of indoor thermistor.
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Domestic air conditioner
Seivice diagnosis
11.4.2 EEPROM abnormal
Indoor Display
outdoor display
E4:
indoor EEPROM error
F12: Outdoor EEPROM error; Outdoor LED1 flash 1 times
Method of
malfunction detection
The Data detected by the EEPROM are used to determine MCU
Malfunction detection
conditions
when the data of EEPROM is error or the EEPROM is damaged
Supposed causes
ŶFaulty EEPROM data
ŶFaulty EEPROM
ŶFaulty PCB
Troubleshooting
* Caution Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Replace the indoor or outdoor mainboard
47
Domestic
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air conditioner
Seivice diagnosis
11.4.3 Indoor AC fan motor malfunction
Indoor Display
E14
Method of
malfunction detection
The fan speed detected by the Hall IC during fan motor running which is used to
determine the fan motor operating
Malfunction detection
conditions
When there is no fan speed feedback signal within 2 minutes
Supposed causes
Troubleshooting
Operation halt due to breaking of wire inside the fan motor.
Fan motor overheat protection
Operation halt due to breaking of the fan motor lead wires
Detection error due to faulty indoor unit PCB
* Caution
Be sure to turn off power switch before connect or disconnect connector, or else parts
damage may be caused
Pull out the terminals on the indoor
Check whether terminals
mainboard and reinsert them.
on indoor pcb is well?
YES
Electrify the machine again and turn it on in the cooling operation,
Measure voltage between the positions 1and 3 of Terminal CN5 on
the indoor PCB
the voltage is about 90-220vac
YES
Measure whether there is voltage pulse(0-5VDC)
YES
check whether motor can run
between the positions middle wire and black wire
of Terminal CN2 on the indoor PCB
when turn on the unit
Is it ok?
YES
the indoor motor is damaged and need replace
the indoor pcb is damaged and need replace
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Domestic air conditioner
Seivice diagnosis
11.4.4 Outdoor DC fan motor fault
Outdoor diplay
Method of
malfunction detection
Malfunction detection
conditions
Supposed causes
LED1 flash
9 times
DC fan motor is detected by checking
the fan running condition and so on
when the data of EEPROM is error or the EEPROM is damaged
ŶDC fan motor protection dues to the DC fan motor faulty
ŶDC fan motor protection dues to faulty PCB
* Caution
Troubleshooting
Be sure to turn off power switch before connect or disconnect connector,
or parts damage
may be occurred.
49
Domestic
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air conditioner
Seivice diagnosis
Check whether Terminal on the outdoor
mainboard is well inserted.
NO
Is it normal?
Reinsert the terminals
YES
Electrify the machine again and turn it
NO
on in the Cool state with the remote
controller. check whether motor can
run
Measure the voltage between 1 and 3 of the terminal of
YES
Measure the voltage between 3 and 6 of
fan motor on the mainboard about DC310V, Measure
the voltage between 3 and 4 of the terminal about
DC15V. Measure the voltage between 5 and 3 of the
terminal about 1-6v.
the terminal about 0-5v.
YES
Is it normal?
Is it normal?
NO
YES
The mainboard of the outdoor unit is
The motor of the outdoor unit is damaged
damaged and needs replacing
and needs replacing.
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NO
Domestic air conditioner
Seivice diagnosis
11.4.5 IPM protection
Outdoor diplay
LED1 flash 2 times
Method of
malfunction detection
IPM protection is detected by checking the compressor running condition and so on
Malfunction detection
conditions
ŶThe system leads to IPM protection due to over current
ŶThe compressor faulty leads to IPM protection
Ŷcircuit component of IPM is broken and led to IPM protection
Supposed causes
ŶIPM protection dues to the compressor faulty
ŶIPM protection dues to faulty PCB of IPM module
ŶCompressor wiring disconnected
Troubleshooting
* Caution
Be sure to turn off power switch before connect or disconnect connector,
or else
parts damage may be occurred..
Electrify the machine again and turn it on
<(6
with the remote controller,If malfunctions
IPM Module is damaged and
are reported before or upon the compressor
needs replacing.
being started up,
Malfunction unsolved
12
The
compressor
is
started
normally,
but
malfunctions are reported after it has run for some
time.
1ǃThe system may have been over or under charged with gas, which can be judged through the pressure of the
measuring system.
2ǃThe shaft of compressor is seized and the compressor needs replacing.
51
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air conditioner
Seivice diagnosis
11.4.6 Over-current of the compressor
LED1 flash 3 or 24 or 25 times
Outdoor diplay
Method of
malfunction detection
he current of the compressor is too high
Malfunction detection
conditions
when the IPM Module is damaged or the compressor is damaged.
voltage is too low or too high
Supposed causes
Troubleshooting
power supply
Faulty IPM Module
Faulty compressor
Faulty power supply
* Caution
Be sure to turn off power switch before connect or disconnect connector, or parts
damage may be occurred...
Electrify the machine again and turn it on
YES
with the remote controller, If malfunctions
IPM Module is damaged and
are reported before or upon the compressor
needs replacing.
being started up,
NO
The compressor is started normally, but
YES
malfunctions are reported after it has
Repair the power supply
run for some time. Check the power
supply is too low or too high
NO
NO
the system may have been over or under charged
with gas, which can be judged through the
pressure of the measuring system.
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Domestic air conditioner
Seivice diagnosis
11.4.7 The communication fault between IPM and outdoor PCB
LED1 flash 4 times
Outdoor diplay
Method of
malfunction detection
Malfunction detection
conditions
Supposed causes
Troubleshooting
Communication is detected by checking the IPM module and the outdoor PCB
The outdoor PCB broken leads to communication fault
The IPM module broken leads to communication fault
The outdoor PCB is broken
The IPM module is broken
Communication wiring disconnected
* Caution
Be sure to turn off power switch before connect or disconnect connector,
or else
parts damage may be occurred
1) Check whether Terminal CN23 and CN24 on the outdoor mainboard
CN10 and CN11 on IPM module
2) Check whether the connected wire between IPM and outdoor
NO
1) Pull out and reinsert the terminals.
2) Replace connected wire
Are they good?
YES
Malfunction unsolved
Electrify the machine again and turn it
on, Check whether the voltage between
YES
1 and 2 of Terminal CN23 is about DC5V,
Replace the outdoor IPM module
with a new one.
Check whether the voltage between2
and 3 of Terminal CN23 is about DC15V,
NO
Replace the outdoor mainboard with a new one
53
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Domestic air conditioner
Seivice diagnosis
11.4.6 Over-current of the compressor
LED1 flash 3 or 24 or 25 times
Outdoor diplay
Method of
malfunction detection
Malfunction
detection
conditions
Supposed
causes
Troubleshooting
he current of the compressor is too high
when the IPM Module is damaged or the compressor is damaged.
voltage is too low or too high
ŶFaulty IPM Module
Ŷ Faulty compressor
ŶFaulty power supply
power supply
* Caution
Be sure to turn off power switch before connect or disconnect connector, or parts
damage may be occurred...
Electrify the machine again and turn it on
YES
with the remote controller, If malfunctions
IPM Module is damaged and
are reported before or upon the compressor
needs replacing.
being started up,
NO
The compressor is started normally, but
YES
malfunctions are reported after it has
Repair the power supply
run for some time. Check the power
supply is too low or too high
NO
NO
the system may have been over or under charged
with gas, which can be judged through the
pressure of the measuring system.
54
Domestic
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air conditioner
Seivice diagnosis
11.4.9 Overheat Protection For Discharge Temperature
LED1 flash 8 times
Outdoor diplay
Method of
malfunction detection
The Discharge temperature control is checked with the temperature being detected by
the Discharge pipe thermistor
Malfunction detection
conditions
when the compressor discharge temperature is above 230 F
Electronic expansion valve defective
Faulty thermistor
Faulty PCB
Supposed causes
* Caution
Troubleshooting
Be sure to turn off power switch before connect or disconnect connector,
or else
parts damage may be occurred.
Electrify the machine again and turn it on with the remote controller,
then measure the temperature at the exhaust temperature sensor of
the compressor on the outdoor unit
1) The cryogen may have been leaked during
the
temperature
110
YES
exceeds
installation, or there may be leakage in the piping
system.
shortly after the
2) There may be other causes to make the exhaust
machine starts up?
temperature too high.
NO
Malfunctions occur after running for some time even
though the measured temperature is below 110
. Pull
out the exhaust sensor and measure its resistance at
standard
temperatures
according
to
the
resistance-temperature table
YES
the
results
deviate
The sensor is damaged. Replace the sensor
with a new one.
much?
NO
The outdoor mainboard is damaged and needs be
replaced
55
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Domestic air conditioner
Seivice diagnosis
11.4.10 The communication fault between indoor and outdoor
indoor diplay
E7
Outdoor diplay
LED1 flash 15 times
Method of
malfunction detection
Communication is detected by checking the indoor PCB and the outdoor PCB
ŶThe outdoor PCB broken leads to communication fault
Malfunction detection
conditions
ŶThe indoor PCB broken leads to communication fault
ŶCommunication wiring disconnected
ŶThe indoor PCB is broken
ŶThe outdoor PCB is broken
ŶThe module PCB is broken
Supposed causes
* Caution
Troubleshooting
Be sure to turn off power switch before connect or disconnect connector,
or else
parts damage may be occurred.
Restart the a/c and it
YES
The outdoor mainboard needs
becomes normally.
dehumidification.
NO
If starting up normally, but
NO
The outdoor mainboard needs
malfunction occurs again after a
dedust.
while
YES
Check whether the linking cable
NO
1. Reconnect the linking cable;
between the indoor and outdoor is well
2. Replace the linking cable with new
connected or whether its core wires are
one.
well insulated.
YES
˄A˅
56
Domestic
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air conditioner
Seivice diagnosis
˄A˅
Check the indoor mainboard.
YES
Measure the voltage between Jumpers 3 and
4 of IC1 on the indoor mainboard with a
NO
multimeter.
Test the outdoor power supply (230VAC
and +310VDC) with a multimeter.
If the voltage is of a constant
value of 0V DCto5V DC
If 230VAC is available but 310DC not,
the power module is damaged, replace it
with a new one.
YES
If both 230VAC and 310DC are
NO
The indoor mainboard is damaged; replace
available, measure +12V
NO
it with a new one.
(from7805) is available.
The outdoor mainboard is damaged;
Replace them with a new one.
YES
Measure the AC voltage between positions 1
and 3 on the terminal of outdoor unit with a
If the value is constant at about 30V, the
multimeter.
indoor mainboard is damaged, replace it with
a new one.
If the value varies between 0 and 80 VAC, the
The outdoor mainboard is damaged; replace
outdoor mainboard is damaged, replace it
it with a new one.
with a new one.
57
Domestic
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air conditioner
Circuit diagrams
11.4.11 Loss of synchronism detection
Inverter side current detection is abnormal
Outdoor diplay
LED1 flash 18 times
LED1 flash 19 times
Method of
malfunction detection
The position of the compressor rotor can not detected normally
Malfunction detection
conditions
when the wiring of compressor is wrong or the connection is poor; or the compressor
is damaged
Supposed causes
Troubleshooting
Faulty The wiring of compressor
Faulty compressor
Faulty PCB
* Caution
Be sure to turn off power switch before connect or disconnect connector,
or else
parts damage may be occurred.
Within 3 minutes after the machine is
NO
supplied with power and turned on with
or the connection is poor;
the remote controller, check whether
the compressor can
1. The wiring of compressor is incorrect
2. The compressor is damaged
start up
YES
YES
At first, the compressor start up ,soon the
IPM Module is damaged and needs
compressor stopped with the LED1 on the
outdoor PCB blinks
1Hz
replacing.
19/18 times
Malfunction unsolved
the
Maybe there is some disturbance
Malfunctions
exist
also,
the
compressor is damaged replace a
new one
58
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Domestic air conditioner
Circuit diagrams
11.4.12 High work-intense protection
LED1 flash 21 times
Outdoor diplay
Method of
malfunction detection
High work-intense control is activated in the heating mode if the temperature being
Malfunction detection
conditions
Activated when the temperature being sensed by the heat exchanger rises above
sensed by the heat exchanger thermistor exceeds the limit.
65
Faulty electronic expansion valve
Dirty heat exchanger
Faulty heat-exchange sensor
Insufficient gas
Supposed causes
Troubleshooting
twice in 30 minutes.
* Caution
Be sure to turn off power switch before connect or disconnect connector,
or else
parts damage may be occurred.
Electrify the machine again and turn it on with the
remote
controller,
check
whether
the
wind
temperature is below 65
The malfunction is reported
YES
1
Check room temperature and
pipe temperature sensor.
after the machine has run
2 the temperature monitoring circuit
for some time?
of the indoor mainboard
NO
The indoor unit blows poorly
YES
due to blocked filters or poor
1) Clean the filters
2) Reinstall the fan.
condition of the fan?
NO
Use some tools to measure the pressure of system
59
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Domestic air conditioner
Circuit diagrams
12. Circuit diagrams
1
2
3
4
MODE
RST
BM
25/35
A/B
SCL
SDA
2
1
EEPROM
J45 1
+5V
C1 8
J46 1
100n F
A/B
+5V
SSCK/SCL/P35
SSO/P37
VCC/AVCC
VREF
DA1/AN0/P07
VSS/AVSS
DA0/AN1/P06
CLK1/AN2/P05
P61
P62
AN3/P04
AN4/P03
AN5/P02
AN6/P01
AN7/P00
KI0/AN8/P10
8
7
6
5
4
3
2
1
E
7B
6B
5B
4B
3B
2B
1B
2
1
+12V
9
10
11
12
13
14
15
16
+12V
COM
7C
6C
5C
4C
3C
2C
1C
CHECK/S_TIME
8
7
6
5
4
3
2
1
E
7B
6B
5B
4B
3B
2B
1B
+5V
CN3 4
4
3
2
1
VS
10K
R35 10K
RLS4148
N2
SS8050LT1H
R56
D16
RLS4148
+5V
-
R78
47K-2W
R77
+15V
100 -1206
ZD003
E9
47uF-50V-105
5
FB VCC
IC9
A6059H
D20
1 T1
2
3
4
R203
ZD001
R206
270 -2W
R004
N001
KTC8050
7
6
102-1000V
C009
R019
5
+12V
ER302(3A-200V-50ns)
CY1
CY2
R205
12V-900mA
D8
1
R209 E204
100
1000uF-25V-105
ZD202
1N4742A(12V-1W)
2.2nF-250VAC 2.2nF-250VAC
C7
0.1uF
560 -0805
47 -1/2W
BCK-6-FE1901H
15V-100mA
HS1 H-25*15
IC5 L7805CV 1.5A-5V
3
INPUT OUTPUT
+5V
0.1uF
470uF-16V
E8
22uF-50V-105
4
102-50V
R161
1.5 -1/2W
2.2K-0603
+15V
100 -1206
R202
1N4742A(12V-1W)
4
GND NC
S
2
1
3
D/ST
C004
10pF-1KV
6
D19
US1M( 1A-1000V-75ns
FR106(1A-600V-500ns) 10 -1206
103-630VDC
C23
7
1N5399
2
1
2
1
10nF
2.2nF-250VAC
C002
E7
CN3 6
+5V
GND
TX
RX
+310V
1N5399
+12V
D15
R66 10K
C013
1N5399
COM3
COM2
+5V
GND
SER
RCK
SRCK
IR
+5V
R38 10K
4.7K
SWITCH
VS
8
D9
310V
BR D/ST
220VAC~/50HZ
1N5399
1
2
3
4
5
6
7
8
+5V
C2 4
+5V
104-630VDC
D7
220-N
R73
1
2
3
4
5
6
7
8
9
10
1
2
+5V
+15V
100uF-450V-105
D6
1
IR
RCK 2
SER 3
SRCK 4
GG 5
GND 6
7
5V
8
DIGH
9
DIGL
10
MODE
+5V
N1
SS8050LT1H
D206
SCK084R72
0.1uF-275VAC
1K
C1 3
10nF
REMOTE_TX
5
4
3
2
1
+5V
3 R53,R6,R16,R18,R17,R21
+5V
R34
12V
A
B
C
D
+12V
IR
FR106(1A-600V-500ns)
220-L
4
3
2
1
FK
5267-04A-
D8
13
12
11
10
9
+5V
+15V
7
6
5
4
3
2
1
16
FLZ
15
HXF1
14
+5V
REMOTE_RX
17
18
19
20
FLZ1
21
22
23
24
25
26
27
28
29
10K
R77
30
10K
R78
31
32
DSTEP_A
DSTEP_B
+5V
12V
A
B
C
D
5
4
3
2
1
COM
7C
6C
5C
4C
3C
2C
1C
USTEP_B
USTEP_C
USTEP_D
10
9
8
7
6
5
4
3
2
1
DSTEP_C
+12V
9
10
11
12
13
14
15
16
+12V
12V
10
A9
B8
C7
D6
5
12V
A4
B3
C2
D1
P26/TDIOC1
P25/TDIOB1
P24/TDIOA1
P23/TDIOD0
P22/TDIOC0
P21/TDIOB0
P20/TDIOA0/TDCLK
P17/TAIO/INT1
P16/CLK0
P15/RXD0/( TRIO)/(INT1)
P14/TXD0
P86
P85/TFO12
P84/TFO11
P83/TFO10/TFI
P82/TFO02
+12V
2
48
47
46
DIG_MODE
45
DIGL
44
DIGH
43
R93
10K
42
41
SER
COMM_TX
40
RCK
COMM_RX
39
SRCK
38
IR
37
36
35
R40 10K
34
33
KI1/AN9/P11
KI2/AN10/P12
KI3/AN11/P13
(INT2)/P32
(INT1)/P36
TAO/P30
TBO/P31
TXD2/P63
RXD2/P64
(CLK1)/CLK2/P65
RXD1/INT3/P67
TXD1/INT2/P66
INT0/P45
TEO/P60
TFO00/P80
TFO01/P81
P33/SSI
P34/SDA/SCS
MODE
P43/XCIN
P44/XCOUT
RESET
P47/XOUT
VSS/AVSS
P46/XIN
VCC/AVCC
P54/TCIOD
P53/TCIOC
P52/TCIOB
P51/TCIOA/TCTRG
P50/TCCLK
P27/TDIOD1
DSTEP_D
1
2
MODE 3
HXF 4
HXF
5
RST 6
7
8
9
10
BUZZ 11
LSTEP_A 12
LSTEP_B 13
LSTEP_C 14
LSTEP_D 15
USTEP_A 16
+5V
+5V
ROOM
PIPE
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
RST
+5V
2
1C
2C
3C
4C
5C
6C
7C
COM
GND
2
1
8
7
6
5
A0
VCC
A1
TEST
A2
SCL
VSS SDA
1B
2B
3B
4B
5B
6B
7B
E
1N4746A(18V-1W
+5V
+12V
1
2
3
4
5
6
7
8
FLZ1
HXF
2
1
2
+5V
+5V
5
6
7
8
4
3
2
1
PIPE ROOM
+5V
+5V
3
C010
IC10
4
3
TLP421
1
1
R80
1.5K-0603
2
2
CY6
+15V
4.7nF-250VAC
CN17
+5V
1
250
LX1
LB2271(32mH-0.35A)
1
2.2nF-250VAC
CY4
3
34
4
12
RV1
CX1
1
~220VAC
R13
330
220V_L
FUSE1
T3.15A-250VAC
220-L
220-N
COMM_TX
COMM_TX
1
CX2
CY5
2
L
1
CN22
N
CON1
+12V
4
K2
1
N
CO N3
220V_L
892N-1AC-C
220V_L
R15 47K-3W
ZD4
1N4746A(18V-1W)
E4
N
100uF-50V-105
CY3
2.2nF-250VAC
D12
R26
1N4007
2K-2W
COMM
1
D4
RLS4148
FLZ
60
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TLP421
100nF-50V
R14 47K-3W
2
1
R19
10K
C8
R22
2K-1/4W
D11
1N4007
1
CO N2
3
K4
3
HXF1
892N-1AC-C
2
D14
RLS4148
1
4
1
+12V
TLP851/PC851
IC6
COMM_RX
COMM_RX
R20 1K
C9
1nF
100K-1/4W
R12
CN27
TVR14561* 470nF-275VAC 100nF-275VAC2.2nF-250VAC
CN21
IC4
N5
SS8050LT1H
Domestic air conditioner
Circuit diagrams
Sincere Forever
Haier Group
Haier Industrial Park, No.1, Haier Road
266101, Qingdao, China_
Http
//www.haier.com
Edited by :
Zou Na
Yang Xiaodong
Signed by :
He shiquan
Approved by: Wu Hongjin
Domestic air conditioner
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