CMV Mini VRF SYSTEM
R410a, 50Hz
Contents
I.
Brief Introduction
II. Advantages
III. Indoor units
IV. Controllers
CHIGO New Generation DC Inverter VRF System
I. Brief Introduction
01. Product Line Up
02. Outdoor units
03. Indoor Units Line up
04. Nomenclature
CHIGO New Generation DC Inverter VRF System
Brief Introduction
01. Product Line Up
Air-cooled scroll chiller
VRF
LCAC
R410a,50HZ
380V-415V/3Ph;220V-240V/1ph
CHIGO New Generation DC Inverter VRF System
Brief Introduction
02. Outdoor Units
 4 models
 All outdoor units
have same size
10KW /12.5KW/14KW/16KW
 Each outdoor unit can connect more than one indoor
unit, MAXIMUM 8 units can be connected.
CHIGO New Generation DC Inverter VRF System
02. Outdoor Units
Specifications
CMV-V100W/ZR1-B
CMV-V125W/ZR1-B
CMV-V140W/ZR1-B
CMV-V160W/ZR1-B
Cooling
mode
Capacity
10KW
12.5KW
14KW
16KW
Input
2.69KW
3.38KW
3.98KW
4.58KW
Heating
mode
Capacity
11.5KW
14KW
16KW
18.5KW
Input
2.91KW
3.66KW
4.3KW
5.13KW
7
8
Size W*H*D mm
900*1328*345
Noise level dB(A)
45 ~ 58
Max connected
indoor unit quantity
6
6
380V-415V/3PH/50HZ ; 220V-240V/1PH/50HZ
CHIGO New Generation DC Inverter VRF System
Brief Introduction
03. Indoor Units Line Up
4-way
cassette
4-way cassette
Wall-mounted
(compact type)
Low ESP
ducted unit
Medium ESP
ducted unit
High ESP
ducted unit
Floor Ceiling
Fresh air
processor
Cap.
(kW)
2.2
2.8
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3.2
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3.6
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4.5
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5.6
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7.1
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8.0
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9.0
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10.0
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11.2
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12.0
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12.5
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14.0
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15.0
16.0
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CHIGO New Generation DC Inverter VRF System
Brief Introduction
04. How To Read The Model Name
CMV - V 100 W / Z R1 Design code
B: 2nd generation
Refrigerant type
R1: R410a
Power supply
Z: 380-415V/3PH/50Hz
Omit:220-240V/1PH/50Hz
Outdoor unit
Capacity (*100W)
Compressor code
V: Inverter
Chigo VRF system
CHIGO New Generation DC Inverter VRF System
Brief Introduction
04. How To Read The Model Name
CMV - V 125 TB / H R1 -
Design code
B: 2nd generation
Refrigerant type
R1: R410a
Function code
H: Heat pump
Indoor unit code
Q: 4-way cassette
G: Wall-mounted
TA: Low ESP ducted
TB: Medium ESP ducted
TH: High ESP ducted
LD: Floor ceiling
Capacity (*100W)
Compressor code
V: Inverter
Chigo VRF system
CHIGO New Generation DC Inverter VRF System
II. Advantages
01. High efficiency
02. Benefit for users
03. Benefits For Installers
04. Doctor Kit
CHIGO New Generation DC Inverter VRF System
CHIGO New Generation DC Inverter VRF System
High Efficiency
01. High Efficiency DC Inverter Compressor
 Twin-rotor DC inverter
compressor
• Rotating speed can be
down to 20RPS
• Has very good
efficiency in part load
condition
High efficiency
High reliability
Low vibration
Low noise
Long life
CHIGO New Generation DC Inverter VRF System
High Efficiency
01. High Efficiency DC Inverter Compressor
High Efficiency, Low Noise:
Optimized the efficiency and noise during
operation with the latest technology.
Environmental Protection:
Developed the compressor with alternative
refrigerant which can protect environment.
Low Vibration:
Reduced the vibration during compressor
start and operation by using 2CYL Structure,
simplified the match of air-conditioning.
CHIGO New Generation DC Inverter VRF System
High Efficiency
02. High Efficiency DC Motor
 High efficiency DC fan motor
 Low noise and high efficiency
because of high-density wire
winding engineering
 Brushless with built-in sensor
AC
motor
•Low efficiency
•Big noise
•Not adjustable
CHIGO New Generation DC Inverter VRF System
High Efficiency
03. DC Motor Stepless Control
 DC fan motor can be stepless controlled by outdoor PCB according to
system's operating temperature and frequency. And it is able to reduce the
energy consumption and maintain the system in the best performance.
Revolution (rpm)
DC motor stepless adjustment
AC motor 2-speed adjustment
1400
Energy wasted
Low performance
1200
700
200
Load
0%
50%
100%
130%
CHIGO New Generation DC Inverter VRF System
High Efficiency
04. 180˚ Sine Wave Control
 The perfect combination of 180˚ Sine wave rotor frequency drive control
technology and excellent IPM inverters, reduces the reactive loss of motordriven, increases motor efficiency by 12%.
Conventional control
waveform
Increase
efficiency by
12%
180˚ Sine Wave vector
Control
CHIGO New Generation DC Inverter VRF System
High Efficiency
05. CCT Inner-grooved Tube
 CCT (Continuous Cooling
Transformation) innergrooved copper tube has high
inner-grooved fins break the
refrigerant flow boundary
layer to enhance refrigerant
disturbance to increase heatexchanging efficiency.
Coefficient of heat transfer, kW/(m2·K)
thermometric conductivity. Its
CCT Inner-grooved Tube
6
Conventional Tube
5
4
100
200
300
400
Refrigerant mass flow, kg/(m2·K)
CHIGO New Generation DC Inverter VRF System
High Efficiency
06. High Performance Heat Exchanger
 Has low air resistance and great heat transfer coefficient
 Frosting improved, frost on the heat-exchanger will be well-distributed,
Coefficient of heat transfer
kW/(m2·K)
easy for defrosting.
Cross Flow Fins
300
Conventional Fins
200
100
0
2
4
Face velocity, m/s
CHIGO New Generation DC Inverter VRF System
CHIGO New Generation DC Inverter VRF System
Benefits For Users
01. Excellent In Efficiency
 Thanks to DC devices(compressor and motor), piping optimization design
and new control logic, system's EER and COP are observably increase.
5
4
3.97
3.73
3.70
3.84
3.54
3.72
3.503.61
3.62 3.78
3
Cooling EER
Heating COP
2
1
0
10KW
12.5KW
14KW
16KW
Average
CHIGO New Generation DC Inverter VRF System
Benefits For Users
02. Outstanding Comfort Ability
 Precisely room temperature control by adopting large pulse EXV. Indoor
temperature fluctuation can be maintain within 0.5 ˚C, offers outstanding
comfort ability.
Room Temperature
Mini VRF
25oC
Conventional fixed speed system
±0.5˚C
Time
CHIGO New Generation DC Inverter VRF System
Benefits For Users
02. Fast cooling and heating
 Every rooms meet set point most quickly and comfortably by optimized
refrigerant control.
Normally running
Some indoor unit get to set point
Stop @ Set point
Stop @ Set point
CHIGO New Generation DC Inverter VRF System
Benefits For Users
03. Wide Outdoor Operation Range.
 Because global warming is
-5˚C
getting worse, Max. cooling
operating temperature is
increased to 50˚C,
-10˚C
Cooling range
0 ˚C
10 ˚C
20 ˚C
30 ˚C
50˚C
40 ˚C
50 ˚C
 Heating operating temperature
is down to -20˚C. In the cold
winter, system can heat the
room continuously.
-20˚C
-20˚C
Heating range
-10˚C
0˚C
10 ˚C
30˚C
20 ˚C
30˚C
CHIGO New Generation DC Inverter VRF System
Benefits For Users
05. Intelligent Defrosting Program
 Program starts only when unit needs to. Whereas conventional unit's
defrosting timing & duration is fixed, causing fluctuations in temperature
and personal comfort.
Heating Capacity output
 Conventional unit's
defrosting timing &
duration is fixed
Time
 Intelligent defrosting
program starts
according to heat
exchanging efficiency
& capacity change due
to the frost. Less
temperature
fluctuations, people
feel more
comfortable.
CHIGO New Generation DC Inverter VRF System
Benefits For Users
06. Fan Reversal Protection
In standby, if the outdoor fan motor is rotating in
opposite direction at a high speed by the wind or
other natural factors, the unit can’t start so as to
keep the fan motor from broken down. It will start
when the fan motor speed slow down.
CHIGO New Generation DC Inverter VRF System
Benefits For Users
07. Flexible For All Kinds Of Rooms
 8 types & 55 models of indoor units, suitable for all kinds of rooms.
CHIGO New Generation DC Inverter VRF System
CHIGO New Generation DC Inverter VRF System
Benefits For Installers
01. Long Pipe & Height Difference.
 The total pipe length: 125 m
 The longest pipe length: 50 m
distributor to last indoor unit:
<25m
 Length from first indoor
<15m
units: 15 m
<50m
 Height difference between indoor
<30m
 Height deference: 30 m
25 m
CHIGO New Generation DC Inverter VRF System
Benefits For Installers
02. Space saving installation
 Multiple indoor units can be connected to 1 outdoor unit, and long
piping connection is also possible.
 Compare to one-drive-one type, the outdoor unit can be installed in
various places to realize the space-saving installation.
CHIGO New Generation DC Inverter VRF System
Benefits For Installers
03. Addressing Methods
 Automatically addressing: system will
distribute address to indoor unit
automatically
 Automatic addressing will reduce artificial
faults and manual works.
CHIGO New Generation DC Inverter VRF System
Benefits For Installers
04. Automatic Addressing
 Automatic addressing will reduce artificial faults and manual works.
• 54% system failure were caused by communication faults.
• 65% communication faults were caused by address problems.
• Most of the address problems were: address setting forgotten, wrong
settings, address repeat.
Failure chart
Communication faults
Others
65%
⇨ Address faults was
awarded to the most
hated fault after had
54%
investigated 120
Others
Addressing problems
VRF after-sale
engineers in 2011.
CHIGO New Generation DC Inverter VRF System
Benefits For Installers
05. LED Display On PCB
 LED display on the PCB, it can show system's operation
status and error codes.
CHIGO New Generation DC Inverter VRF System
Benefits For Installers
06. Mode Restriction
 5 kinds of mode restriction
• First start indoor units
priority mode
• Cooling (or heating)
priority mode
• Cooling only (or heating
only) mode
 Mode restriction function
can be selected on the
outdoor PCB.
CHIGO New Generation DC Inverter VRF System
Benefits For Installers
7. Oil Control Technology
 Core oil control technology makes system safety & reliable.
Intelligent oil return program
Oil level control
Oil even
pipe
Oil separator
Separation
efficiency
92%
CHIGO New Generation DC Inverter VRF System
Benefits For Installers
8. 3-phase Power Protector (Optional Device)
 Protect the outdoor unit
from instable voltage.
CHIGO New Generation DC Inverter VRF System
CHIGO New Generation DC Inverter VRF System
Doctor Kit
01. Easy To Use
 Doctor Kit includes: 1 CD software and
RS485-USB converter, easy to install
 Graphical interfaces, easy to use
CHIGO New Generation DC Inverter VRF System
Doctor Kit
02. Data Monitoring
 We can use computer to inquiry
outdoor unit's operating status,
error codes when connecting to
Doctor Kit.
 Compressors, sensors, valves
operating parameter can be
real-time monitored.
 System operating parameter
curve can be real-time
displayed.
CHIGO New Generation DC Inverter VRF System
Doctor Kit
04. Troubleshooting
 Built-in with troubleshooting
instruction, user can follow the
instruction to solve the problem
when error happens.
 User can also print out the
instruction and take it to site to
solve the problem step by step.
CHIGO New Generation DC Inverter VRF System
Doctor Kit
05. Automatic Data Backup
 Automatic Data Backup: all operating data will be saved on hard disk
automatically. Data file can be exported easily by software.
 When system failure, user can send the data file to Chigo, Chigo's engineer
will check and guide you to solve the problem.
10 hours data = 1MB
CHIGO New Generation DC Inverter VRF System
Doctor Kit
06. Charged Refrigerant Volume Calculator
 Input the liquid pipe diameter and length, software will calculate the
additional refrigerant charged volume.
 Charged volume can be saved for future reference.
 Discharge pressure can be monitored when charging refrigerant.
CHIGO New Generation DC Inverter VRF System
Ⅲ. Indoor Units
01. 4-way cassette
02. Wall-mounted
03. Floor ceiling
04. Low ESP Ducted type
05. Medium ESP Ducted type
06. High ESP Ducted type
07. Full fresh air processor
CHIGO New Generation DC Inverter VRF System
Indoor Units
01. 4-way Cassette
 Standard type:
• Capacity: 2.8 kW to 16 kW
• Size: 840 × 893mm
• Built-in with EXV and water pump
• Pumping head 750mm
 Compact type:
• Capacity: 2.2 kW to 4.5 kW
• Size: 580*580mm,
• Built-in with EXV and water pump
• pumping head 700mm
CHIGO New Generation DC Inverter VRF System
Indoor Units
02. Wall-mounted
 Capacity: 2.2 kW to 7.1 kW
 2 types of unit can be chosen:
 EXV Built-in type
 EXV separated type
 Compact size and low noise
CHIGO New Generation DC Inverter VRF System
Indoor Units
03. Floor Ceiling
 Capacity:4.5kW to 16.0kW
 Flexible installation:
• vertical or horizontal
 Built-in with EXV
 Comfortable air delivery swing
adjustment:
• Left and right,
• Up and down
CHIGO New Generation DC Inverter VRF System
Indoor Units
04. Low ESP Ducted Type
 Capacity 2.2 kW to 7.1 kW
 External static pressure: 20 Pa
 Built-in with EXV
 Low noise, and light weight
 Slim body, only 180 mm height
 Air return box and filter is optional
CHIGO New Generation DC Inverter VRF System
Indoor Units
05. Medium ESP Ducted Type
 Capacity: 7 kW to 15 kW
Air return for rear
 External static pressure: 70Pa
 Built-in with EXV
 Flexible installation, many options
 Air return method can be site changed
Air return from bottom
CHIGO New Generation DC Inverter VRF System
Indoor Units
06. High ESP Ducted Type
 Capacity: 7 kW to 15 kW
7.1kW / 8.0kW / 9.0kW
 External static pressure: 150Pa
 Built-in with EXV
 Suitable for long distance air supply
10.0kW / 12.0kW / 15.0kW
CHIGO New Generation DC Inverter VRF System
Ⅳ. Controllers and Software
01. Wireless remote controller
02. Wired controller
03. Group controller
04. BMS Gateway
05. Centralized control system
06. Doctor Kit
07. CMV selection software
CHIGO New Generation DC Inverter VRF System
Controllers and software
01. Wireless Remote Controller
 Indoor unit address inquiry
Standard
Optional
 Indoor unit address setting
 Temperature setting
 Operation mode setting
 Fan speed setting
 Timer function
CHIGO New Generation DC Inverter VRF System
Controllers and software
02. New Wired Controller
 Bidirectional communication.
Indoor unit's operating parameters
(error code, temperature, address)
can be inquired and displayed on
the controller.
 Compact design
 3'' screen with white background
light
 Timer function
 Electrical standard dimensions
CHIGO New Generation DC Inverter VRF System
Controllers and software
03. Group Controller
 Easy to install. Controller
connects to outdoor units
only.
 Able to install group
controller after building
decoration.
 1 Controller can control
max. 64 indoor units in
different systems.
CHIGO New Generation DC Inverter VRF System
Controllers and software
03. Group Controller
 Wireless/wired control
restriction
 Operation mode restriction
 Timer function
 Error or protection code
display
CHIGO New Generation DC Inverter VRF System
Controllers and software
04. BMS Gateway
 BACnet gateway
 Modbus gateway
BMS/BAS System




Honeywell
Siemens
Johnson controls
Etc…
Mini CMV system
Gateways
……
CHIGO New Generation DC Inverter VRF System
Controllers and software
05. Centralized Control System
 Billing function
 Operating report output
 Schedule management
 1024 indoor unit can be
connected
 Control indoor units with
fully permissions.
CHIGO New Generation DC Inverter VRF System
Controllers and software
06. Doctor Kit
 Operating status, error codes inquiry
 Compressors, sensors, valves operating
parameter real-time monitored and
display.
 Commissioning results can be reported.
 Built-in with troubleshooting instruction
 Automatic Data Backup
CHIGO New Generation DC Inverter VRF System
Controllers and software
07. CMV Selection Software
CHIGO New Generation DC Inverter VRF System
CHIGO New Generation DC Inverter VRF System
latest developments
1st time test of trail production is done.
CHIGO New Generation DC Inverter VRF System