ENGLISH
TRUCK HVAC ADVANCED TROUBLESHOOTING
ISO 9001:2000
L–2652
Rev. 20090130
Truck HVAC Advanced Troubleshooting
CONTENTS
Tab
Section
Page No.
1
Systems Using QT-Series Controls
3
2
Systems Using SMXII Control
9
3
Superheat Method of Initial Checking of Refrigerant Charge
15
4
DC-Powered System Troubleshooting
17
5
Dometic Wiring Diagrams
21
6
Leece-Neville TSB-1059
53
7
Inverter Manual
71
8
Inverter/Charger Manual
87
ENGLISH
1
WARNING:
Only trained technicians should perform these checks and tests. These units contain voltage
of 12VDC, 24VDC, 115VAC and/or 230VAC. Some of these voltages can be lethal. These units
also contain refrigerant under high pressure. Refrigerant circuits should only be accessed by
licensed technicians.
2
ENGLISH
Truck HVAC Advanced Troubleshooting
1.
SYSTEMS USING QT-SERIES CONTROL
Symptom: Unit Does Not Operate at All
1)
Make sure that the unit is getting the correct
voltage, as identified on the dataplate. This
may mean starting the generator, connecting to
shorepower or turning the inverter on.
2)
Ensure that any circuit breakers pertaining to
the HVAC unit are on.
3)
Check for display on the Qt display panel. If
it is showing a temperature, make sure that
the setpoint is set at a sufficient point to allow
system operation. If there is no display, then go
to “Keypad does not display, even with power
turned on.”
4)
Check to see that the Qt keypad is set to the
correct function (i.e. cooling, heating, etc.).
Symptom: Keypad Does Not Display Even with
Power Turned On
1)
2)
3)
4)
Connect system to shorepower to rule out
generator or inverter problem.
Check voltage at Power Logic Board (PLB),
between terminals L1 and L2 with voltmeter.
It should match the voltage listed on the
dataplate.
Unplug and reconnect the Interconnect Cable
(CXP) on the keypad and at the PLB. Make
sure that the CXP cable is plugged into the
“Display” connection at the PLB.
Check the fuse on the PLB for continuity with
the voltmeter. If blown, replace with fuse of the
same type and ampacity. If it blows again, then
go to the section titled “PLB Fuse Continues to
Blow.”
5)
Confirm that the unit does/does not have an
Ignition Interlock Relay. If there is one present,
assure that the Ignition Switch is in the OFF
position. If this does not solve the issue, check
the relay for proper operation. It should be
passing voltage through.
6)
If power is present at the PLB, the fuse is good
and the Ignition Interlock Relay is working
ENGLISH
properly but keypad still does not display, then
replace the keypad.
7)
If keypad replacement does not solve the
problem, then replace the CXP cable.
8)
If CXP cable replacement does not solve the
issue, then replace the PLB.
Symptom: Keypad Does Not Display, Compressor
or Heater Do Not Operate, However, Evaporator Fan
Turns Slowly
1)
Check incoming AC power at the PLB; it should
match the dataplate requirement.
2)
CAREFULLY check for voltage on the
Yellow-White-Yellow wires of the transformer.
WARNING: There is dangerous voltage present
in this area, INJURY OR DEATH can occur
if you are not trained and careful. You should
have 12VAC Yellow – White and 24VAC Yellow
– Yellow.
3)
If voltage from transformer is less than listed
above, replace transformer or PLB.
3
Truck HVAC Advanced Troubleshooting
Symptom: Unit Does Not Make Sufficient/Any Cool
Air
1)
Check the temperature setpoint to make sure it
is sufficient to allow the unit to run in the COOL
mode.
2)
If the temperature in the space does not agree
with the display, check to make sure the unit
is not in Celsius mode. See the directions in
either L-2513 or L-2596 for more information on
this process.
3)
Make sure that the keypad is set to COOL or
AUTO mode.
4)
Confirm that there is a dot in the upper lefthand corner of the display. This indicates that
the control is asking the compressor to run.
5)
Check the evaporator air filter, clean as needed.
6)
Confirm evaporator/blower operation by
checking for air flow from the discharge air
grills. See “Evaporator/Blower Does Not Move
Enough Air” if the blower is not moving the
correct air flow.
7)
Confirm that the condenser fan is running
by checking for air flow under the sleeper.
Understand that with this control, the
condenser fan will not operate until the
discharge of the compressor is above 80oF.
From 80oF to 140oF the condenser will operate
in LOW speed, and above 140oF in HIGH
speed.
8)
Confirm operation of the compressor. If the
compressor will not start, see “Compressor Will
Not Start.”
9)
Check the refrigerant charge. A quick method is
to check for temperature difference (TD) across
the coil and to check for a sweaty coil. TD
should be between 13-20oF, depending on the
ambient conditions and the model. The suction
line and/or return bends of the coil should be
cold and sweaty. A more in-depth method is
the superheat method. Look to the end of this
guide for instructions in this method.
10) Ensure that the drain tube is connected to the
unit.
11) Check the evaporator coil temperature by going
to the Qt Control/Display, and pressing and
holding the FAN and + buttons simultaneously.
The display will show “ES” then a number. The
4
number is the temperature of the evaporator
coil. If the coil temperature gets to 34oF or
below, the compressor will cycle off to prevent
ice up. Put a thermocouple or other sensor
on the suction line. If the display does not
agree with the thermocouple, you may need to
replace the evaporator sensor.
Symptom: PLB Continues to Blow Fuse
1)
If fuse blows immediately after replacement,
check condenser fan for bad bearings. Try to
spin the fan by hand, if the bearings are bad,
then you will feel a rasping during rotation or
the fan may be seized altogether. If this is the
case, replace the fan.
2)
If the condenser fan bearings check OK, try
hooking the fan directly to a 12VDC source,
such as a battery. Use an amp clamp or other
device to check the current. The 7-10K blower
should draw approximately 1.6ADC on low and
4.0ADC on high. The 14K blower should draw
approximately 2.2ADC on low and 5.4ADC on
high. If the fan is okay, go to Step 3.
3)
Remove transformer secondary wires (two
yellows, one white) from the board. Place them
such that they cannot touch anything or each
other. Replace fuse and apply power. If fuse
blows immediately, then the transformer is bad
and needs replacing.
Symptom: Evaporator/Blower Does Not Move Any or
Enough Air.
1)
Check the blower high speed setting in the Qt
Control/Display program. Refer to the literature
L-2513 or L-2596 for more information.
2)
Check to make sure that all vents are open.
3)
Check to make sure that ductwork is not
crushed, kinked, disconnected or torn.
4)
To check blower bearings, remove the ductwork
and try spinning the blower wheel by hand.
NEVER perform this operation with power to
the unit, as serious injury can result.
5)
On the REMOTE unit ONLY: If blower spins
freely, then put power back to the unit. If the
blower does not start by itself, carefully give
the blower a little push. The blower in the
REMOTE unit spins backwards from what you
ENGLISH
Truck HVAC Advanced Troubleshooting
might think. If the blower continues to run, then
the blower capacitor needs replacing.
7)
Use a voltmeter to check DC voltage on
the output of the bridge rectifier. It should
be approximately 26-27.6 VDC on the selfcontained unit, or 13-13.8 VDC on the remote
units.
8)
Unplug the fan and use a voltmeter to check
DC voltage. It should be the same voltage as
measured in Step 7.
9)
If all these steps test OK, then replace the
condenser fan.
Symptom: Condenser Fan Does Not Operate
1)
2)
Confirm that the fan is not running. During
the startup phase of the COOLING cycle and
during low ambient conditions, the fan may
not operate at all. This can be normal. The fan
can also operate at low speeds, causing low
air flow and low noise. This can be a normal
occurrence. NOTE: The condenser fan will not
normally operate unless the COOLING cycle is
in operation.
At the Qt Control/Display panel, press and
hold the FAN and the - buttons simultaneously.
The display will show “CS,” then a number.
The number is the temperature sensed at the
discharge line. Below 80oF, the condenser fan
is off. Between 80oF and 140oF, the fan is on
low speed. Above 140oF, the fan should run
on high speed. Put a thermocouple or other
sensor on the compressor discharge line. If
the display does not match the temperature,
replace the discharge temperature sensor. TIP:
You can temporarily unplug the compressor
discharge sensor to get the fan to run. It will
automatically default to high speed, however,
this will show you a fault code. You can also
temporarily replace the temperature sensor
with a ¼ watt, 430 ohm resistor to make the fan
run on high.
3)
Check the plug at the condenser fan. Make
sure that it is connected, and that the pins fully
lock into place.
4)
Check to see if anything physically blocks the
fan blade or if it spins freely by hand. NEVER
perform this operation with power to the unit, as
serious injury can result.
5)
Check the input voltage at the PLB on L1 and
L2. It should be dataplate-listed voltage.
6)
Check the output voltage at the input to the
board. On the lower, left-hand side where
the input 12 and 24VAC connects. Check for
approximately 22-24VAC across the two yellow
wires, and approximately 11-12VAC between
either yellow wire and the white wire. No
voltage in either location would indicate a bad
transformer.
ENGLISH
Symptom: Compressor Will Not Start
1)
Check to make sure the unit is in the COOL
mode, and that the LED dot in the upper lefthand corner of the display is illuminated.
2)
The voltage may be low from the generator,
shorepower, etc. Check voltage at the PLB with
compressor off, then when the compressor
starts. Also, check voltage with the heater
running. Hook to shorepower and check again.
Do not operate the compressor at voltages
below 104VAC. If voltage drops below 90VAC
during startup attempt, compressor may not
start.
3)
Check for any faulty start components, such
as run capacitor, start capacitor, start relay (all
remote units, some self-contained units) or
PTCR start assist device (most self-contained
units only).
4)
Check for bad compressor windings: Turn
the power off and remove wires from top of
compressor. With an ohmmeter, check between
each winding terminal for continuity. Then
check between each terminal and ground.
There should be conductivity between each
winding, with resistance readings generally
in the single-digit ohms. There should be no
conductivity between any terminal and ground.
NEVER perform this operation with power
present at the PLB, as severe INJURY or
DEATH may occur.
5)
Check for a faulty compressor power relay. With
power ON and the unit in the COOL mode,
check for power present at the output of the
compressor relay on the PLB. If no power is
present, PLB may need replacing.
5
Truck HVAC Advanced Troubleshooting
Symptom: Evaporator Fan Does Not Operate
1)
Check to make sure that the unit is in the
manual FAN mode, the HEAT mode, or COOL
mode, and that the fan speed lights are
illuminated. If they are not illuminated, press
the FAN button to assume manual control of
the fan.
2)
Make sure that the dataplate-listed voltage is
present at the PLB between L1 and L2.
3)
Check fan capacitor (remote units only).
Replace the capacitor if it does not test to rated
capacitance.
4)
Check for voltage at the fan terminal with the
power on. If there is no voltage when the PLB
is calling for the fan to run, then the PLB may
be faulty.
5)
Check wiring connections on PLB, as well as
the neutral connection. On the remote units,
check connections in the heater electrical
box, as well as on the large, round Deutsch
connector.
6)
Visually inspect the fan to make sure that
something is not blocking it from turning. On
the remote units, remove the top cover of the
blower plenum while the unit is off. Check for
interference of blower with anything else. Check
for free spin by turning the blower by hand. On
the self-contained units, remove the ductwork
and perform the same test. NEVER perform
this test with unit running, as serious INJURY
will result.
Symptom: Unit Does Not Make Sufficient/Any Heat
(Electric Heat Models Only)
6
1)
Check voltage at PLB with the unit off. Voltage
should be the same as the dataplate listing.
2)
Press HEAT on the keypad. Move the setpoint
to a temperature higher than the space
temperature. The round LED in the upper
left-hand corner of the display panel should
illuminate. If it does not, then recheck the
setpoint.
3)
If the temperature in the space does not agree
with the display, check to make sure the unit is
not set to Celsius. See the directions in either
L-2513 or L-2596 for more information on this
process.
4)
If the round LED in the upper left-hand corner
does illuminate, check amperage against
what is listed on the dataplate. Keep in mind
that the unit might have a two-stage heater.
Also, recheck voltage at the PLB. If voltage is
lower than listed on the dataplate, either the
generator needs adjusting or the shorepower
connection is not good.
5)
If the HEAT light is illuminated and the heater
still does not activate, check for voltage
between the red and white (or gray) wire at the
heater. There should be line voltage. If there is
no voltage, then follow these steps:
a)
Check all wiring connections, plugs, etc.
b)
Check the heat relay on the PLB
c)
Replace the PLB
6)
With power off, remove the wires from the
terminals of the automatic reset thermal
breaker at the heater module. Check for
conductivity across the breaker. If the unit is not
hot, and there is no conductivity, then replace
the breaker.
7)
With power off, check for continuity across
the heater block. Do this by connecting to
the neutral terminal of the terminal block and
the white wire that has been removed from
the automatic reset thermal breaker. Correct
resistance depends on the heater, but should
be somewhere between 3-20 ohms. If the unit
has a two-stage heater, it will require testing
between the neutral wire and the wire off each
thermal breaker. If you choose, you can remove
the heater block to perform this test.
8)
Ensure that the drain tube is connected to the
unit.
Symptom: Unit Does Not Make Sufficient/Any Heat
(Diesel-Fired Heater)
1)
Check voltage at PLB with unit off. Voltage
should be the same as what is listed on the
dataplate. If not, problems may exist with the
inverter or other power source.
2)
Check all fuses on the diesel-fired heater.
3)
Press HEAT on the keypad. Move the setpoint
to a temperature higher than the space
temperature. The round LED in the upper lefthand corner of the display should illuminate. If
it does not, recheck the setpoint.
ENGLISH
Truck HVAC Advanced Troubleshooting
4)
5)
6)
If the temperature in the space does not agree
with the display, check to make sure the unit is
not set on Celsius. See the directions in manual
L-2513 or L-2596 for more information on this
process.
When the round LED in the upper left-hand
corner of the display does illuminate, check
for 12VDC at the coil of the ice cube relay.
Once the relay has voltage, the contacts will
close, directing 12VDC to the Time Delay Relay
(TDR). The TDR is set at four (4) minutes. After
the appropriate timeout, the 12VDC should be
directed back toward the diesel-fired heater.
a)
If the ice cube relay has power at the coil
terminals, but does not close, replace the
relay.
b)
If the ice cube relay gets no power at the
coil terminals, replace the Power Logic
Board.
c)
If the ice cube relay closes, but the TDR
does not time out at the set time, replace
the TDR.
If the heater still does not function, hook up the
Espar diagnostic tool and check for operation
and fault codes. Refer to the Espar manual for
further assistance.
7)
Ensure that drain tube is connected to HVAC
unit.
8)
Change the heater speed resistor to the next
highest value, consult the applicable wiring
diagram.
Symptom: Temperature in Space Does Not Seem to
Agree With Display on Keypad
1)
2)
3)
4)
ENGLISH
Check location of sensor to make sure that it is
still mounted correctly.
Move sensor to a better location, i.e. either at
the return air grill or somewhere else in the
conditioned space.
Check for unsealed openings in the space
where the HVAC unit is mounted. Air from
outdoors will not only throw off the reading, but
also will impact the effectiveness of the HVAC
system.
If the temperature in the space does not agree
with the display, check to make sure the unit is
not set on Celsius. See the directions in either
L-2513 or L-2596 for more information on this
process.
5)
Replace the temperature sensor (TSEP).
Symptom: Keypad Shows “HI PS” Fault and Unit
Does Not Operate
This fault indicates that the unit has shutdown and
locked out on a high condenser pressure fault. Check
the following issues to alleviate this problem:
1)
If the condenser is dirty, rinse it with water. If it
is dirty and greasy, rinse with water, soak with a
degreaser that is safe for aluminum (not Purple
Power or equivalent, as they will eat aluminum)
and then rinse again. DO NOT use a pressure
washer.
2)
Ambient temperature is too high. Unit may not
function in temperatures over 135oF, or lower
if the condenser is located near another heat
source (generator exhaust) or somewhere
that traps the heat. Consider relocation of the
condenser to a better area.
3)
Condenser fan failure: see “Condenser Fan
Does Not Operate.”
4)
Faulty High-Pressure Switch (HPS). Check by
running unit and watching a pressure gauge
attached to the high side. The switch should trip
at approximately 425 PSI. If the unit shuts down
very quickly, but the pressure never gets above
425 PSI, try putting a jumper between the two
yellow wires. If the unit runs correctly, replace
the HPS (remote units only).
5)
Check all refrigerant connections (remote units
only).
6)
Unit overcharged with refrigerant. Evacuate and
recharge with the correct amount (see chart
below).
a)
EHCEQ14 with ACCD14 condenser – 4
lbs.
b)
EHCEQ14 with ACCE14 condenser – 3
lbs.
c)
EHCFQ14 with ACCE14 condenser – 3
lbs.
d)
EHCEQ10 with ACCD10 condenser – 3
lbs.
7
Truck HVAC Advanced Troubleshooting
Symptom: Keypad Shows Blinking “- -” and Does
Not Operate
e)
EHCEQ10 with ACCE10 condenser – 2.5
lbs.
f)
EHCFQ10 with ACCE10 condenser – 2.5
lbs.
1)
Check CXP cable connections.
g)
EHCEQ7 with ACCD7 condenser – 1.5 lbs.
2)
h)
EHCFQ7 with ACCD7 condenser – 1.5 lbs.
Replace CXP cable with an Original Dometic
part. Do not purchase a part from the local
computer supply house; it will not work.
i)
ASCDQ14 – 33 oz.
j)
ASCDQ10 – 31 oz.
k)
ASCEQ7 – 15 oz.
Symptom: Keypad Shows Alternating “CS” then “- -”
and Does Operate.
1)
Check connections on the Condenser
Temperature Sensor at the CHEB and in the
PLB.
2)
Replace the Condenser Temperature Sensor.
Symptom: Keypad Shows “HI AC” and Unit Does Not
Operate.
1)
Incoming AC voltage is too high. Check voltage
and adjust generator to meet specifications
listed on the dataplate.
2)
AC voltage calibration is out of adjustment.
Adjust calibration in control. See information
contained in manual L-2513 or L-2596 and use
Dometic Corporation, Environmental Division
Work Instruction 080411.
Symptom: Keypad Shows “LO AC” Fault and Does
Not Operate
1)
2)
Incoming AC voltage is too low. Check voltage
and adjust generator to meet specifications
listed on dataplate. If hooked to shorepower,
you may need a larger shore cord or a better
connection point.
AC voltage calibration is out of adjustment.
Adjust calibration in control. See information
contained in either manual L-2513 or L-2596
and use Dometic Work Instruction 080411.
Symptom: Keypad Shows “HI FC” and Does Not
Operate
1)
Incoming AC frequency is too high. Adjust
generator to within the specifications listed on
the dataplate.
Symptom: System Does Not Cause Generator to
Automatically Start (When Hooked Up Correctly for
the Genstart Feature, If So Equipped)
1)
Check to make sure the generator panel is
setup correctly for AUTO mode.
2)
Check to make sure that the HVAC keypad is
set correctly to initiate HVAC RUN mode. Auto
GenStart will not initiate until heating or cooling
is called for.
3)
Check PLB for incoming 12VDC to the PLB at
the 12VDC + and – input pins, see drawings
080410 for more detail. If no 12VDC is present,
then check generator, as that voltage feeds
from the Generator.
4)
Check for GenStart relay operation. 12VDC
should be present on the pin heading back to
the generator.
5)
Check GenStart relay for coil continuity. Using
an ohmmeter, replace the coil if necessary.
NOTE: Some problems that seem to be programming
issues of the PLB can be solved with a Factory Memory
Reset. Follow the direction in literature product L-2513 or
L-2596.
Symptom: Keypad Shows “LO FC” and Does Not
Operate
1)
8
Incoming AC frequency is too low. Adjust
generator to within the specifications listed on
the dataplate.
ENGLISH
Truck HVAC Advanced Troubleshooting
2. SYSTEMS USING SMXII CONTROL (SMXirb KEYPAD)
Symptom: Unit Does Not Operate at All
1)
Make sure that the system is getting the correct
voltage, as identified on the dataplate. This
may mean starting the generator, connecting to
shorepower or turning the inverter on.
2)
Ensure that any and all circuit breakers
pertaining to the HVAC unit are on.
3)
Check for display on the SMX panel. If it is
showing a temperature, make sure the setpoint
is set at a sufficient point to allow system
operation. If there is no display, go to “Keypad
Does Not Display Even with Power Turned On.”
4)
Check to see that the SMX is set to the correct
function (i.e. cooling, heating, etc.).
Symptom: Keypad Does Not Display Even with
Power Turned On
1)
Connect system to shorepower to rule out
generator or inverter problem.
2)
Check voltage at Power Logic Board (PLB) with
voltmeter. It should match the voltage listed on
the dataplate.
3)
Unplug and replug CXP cable connections at
PLB and at SMX keypad. Make sure that the
CXP is plugged into the slot marked “Display”
on the PLB.
4)
If power is present at PLB, but keypad still does
not display, then replace the keypad.
5)
If replacing the keypad does not solve the
problem, replace the CXP cable.
6)
2)
Check the evaporator air filter, clean as needed.
3)
Make sure the keypad is set to COOL.
4)
Make sure that the “COOLING” indicator is
illuminated on the keypad.
5)
Confirm evaporator/blower operation by
checking for air flow from discharge grilles. See
“Evaporator/Blower Does Not Move Enough
Air” if the blower is not moving the correct air
flow.
6)
Confirm that the condenser fan is running
by checking for air flow from the condenser,
which may be under or behind the sleeper. See
“Condenser Fan Does Not Operate” if the fan is
not operating.
7)
Confirm operation of the compressor. If
compressor will not start, see “Compressor Will
Not Start.”
8)
Check refrigerant charge. A quick method is to
check for temperature difference (TD) across
the coil and to check for a sweaty coil. TD
should be between 13-20oF, depending on the
ambient conditions and the model. The suction
line and/or return bends of the coil should be
cold and sweaty. A more in-depth method is
the superheat method. Look to the end of this
guide for instructions on this method.
9)
Ensure the drain tube is connected to the unit.
If the CXP cable replacement does not solve
the problem, replace the PLB.
Symptom: Unit Does Not Make Sufficient/Any Cool
Air
1)
ENGLISH
Check the temperature setpoint to make sure it
is sufficient to allow the unit to run in the COOL
mode.
9
Truck HVAC Advanced Troubleshooting
Symptom: Evaporator/Blower Does Not Move
Enough Air
1)
Check the blower high speed setting in the
SMX program. Do this by the following key
punches:
leads going to the transformer. Voltage should
be listed on the dataplate.
7)
Use a voltmeter to check AC voltage on the
yellow output leads of the transformer. It
should be approximately 22.0-24.0 VAC. Check
between one yellow and the white. It should be
approximately 11.0-12.0 VAC.
8)
Use a voltmeter to check DC voltage on
the output of the bridge rectifier. It should
be approximately 26-27.6 VDC on the selfcontained unit, or 13-13.8 VDC on the remote
units. NOTE: The remote units use a relay
to switch between low and high fan speed,
which either use the 12- or 24-volt output of
the transformer. When the sensor reaches
designated temperature or pressure, the relay
will switch to high.
Use a voltmeter to check AC voltage on the
output of the bridge rectifier. It should be
approximately 0.5-1.0 VAC, depending on
output DC voltage.
Press OFF
Press SET
Press SET and SLOW simultaneously.
Set the number shown with the UP or DOWN
keys.
The self-contained units should be set to 60,
while the remote units should be set to 80.
2)
Check to make sure that vents are not closed.
3)
Check to make sure that ductwork is not
crushed, kinked, disconnected, or torn.
9)
4)
On the remote units, remove the top cover of
the blower plenum while unit is off. Check for
interference of blower with anything else. Turn
blower by hand to check for free spin. On the
self-contained units, remove the ductwork, and
perform the same test. NEVER perform this
test with the unit running, as serious INJURY
will result.
10) Unplug fan, use voltmeter to check DC voltage.
It should be identical to the voltage found in
Step 7.
Symptom: Condenser Fan Does Not Operate
1)
10
Confirm that the fan is in fact not running. The
fan can operate at low speeds, causing low
air flow, and low noise. This can be a normal
occurrence. NOTE: The condenser fan will
not operate unless the “COOLING” light is
illuminated.
2)
Check the plug at the condenser fan. Make
sure that all of the pins are properly seated.
3)
Check to see if the fan blade is blocked
physically by anything or if it will spin freely by
hand. (Do not attempt if unit is powered up!)
4)
Check the fuse located on the side of the
remote electrical box or inside the electrical box
of the self-contained unit. If blown, replace with
fuse of identical ampacity and voltage.
5)
Use a voltmeter to check AC voltage at the
PLB. Voltage should be listed on the dataplate.
6)
Use a voltmeter to check AC voltage on the
11) If all of these Steps test OK, then replace the
condenser fan.
Symptom: Compressor Will Not Start
1)
Check to make sure the unit is in the COOL
mode and the “COOLING” light is illuminated.
2)
Check for low voltage at the PLB with
compressor off, then when the compressor
starts. Also, check the voltage with the heater
running. Hook to shorepower, if available, and
check again. Do not operate the compressor
at voltages below 104VAC. The PLB will cut
the unit off if voltage is below 100VAC for more
than three minutes. If voltage drops below
90VAC during starting, then display may blank
out, and the compressor may not start.
3)
Check for faulty start components such as run
capacitor, start capacitor, start relay (remote
units only) or PTCR start assist device (selfcontained units only).
4)
Check for bad compressor windings.
Turn power off, remove wires from top of
compressor. With an ohmmeter, check between
ENGLISH
Truck HVAC Advanced Troubleshooting
each winding terminal for continuity. Then
check between each terminal and ground.
There should be conductivity across each
winding, with resistance readings generally
in the single-digit ohms. There should be no
conductivity between any terminal and ground.
NEVER perform this operation with power on,
as serious INJURY or DEATH can result.
5)
Make sure the keypad is in the FAN mode,
HEAT mode, or the COOL mode, and that the
fan speed indicators are illuminated. If they
are not illuminated, press the FAST button to
assume manual control of the fan.
2)
Make sure that the dataplate listed voltage is
present at the PLB.
3)
Perform Factory Memory Reset, by
pressing OFF, SET, then OFF & SET & FAN
simultaneously. Then press SET. After a couple
seconds of flashing, the display should return
to normal. Then press OFF, SET, then SET &
SLOW simultaneously. Change the number
with the UP or DOWN keys. Set number to 80
for remote units or 60 for self-contained units.
Press OFF when finished.
4)
Check fan run capacitor, if used. Replace the
capacitor if it does not test to rated capacitance.
5)
Check for voltage at the fan terminals. If there
is no voltage when the PLB is calling for the fan
to run, then the PLB may be faulty.
6)
Check wiring connections on the PLB, as well
as neutral connection. The neutral connection
is at the heater terminal strip on the remote
units and on the terminal strip in the electrical
box of the self-contained units.
7)
ENGLISH
1)
Check voltage at PLB with unit off. Voltage
should be the same as what is listed on the
dataplate.
2)
Press HEAT on the keypad. Move the setpoint
to a temperature higher than the space
temperature. The “HEATING” light should
illuminate. If it does not, recheck the setpoint. If
this still does not work, replace the PLB.
3)
If the HEATING light does illuminate, check
amperage against what is listed on the
dataplate. Also, recheck voltage at the PLB. If
voltage is lower than listed on the dataplate,
either the generator needs to be adjusted or
the shorepower connection is not good.
4)
If the “HEATING” light is illuminated and the
heater still does not activate, check for voltage
between the red wire and the white wire at the
heater. There should be line voltage. If there is
no voltage, then follow these steps:
Check for faulty compressor triac. With power
on and unit in COOL mode, check for power at
the compressor terminals.
Symptom: Evaporator Fan Does Not Operate
1)
Symptom: Unit Does Not Make Sufficient/Any Heat
(Electric Heat)
Visually inspect fan to make sure that
something in not blocking it from turning. On
the remote units, remove the top cover of the
blower plenum while unit is off. Make sure
nothing interferes with the blower. To do so, turn
the blower by hand and check for free spin. On
the self-contained units, remove the ductwork
and perform the same test. NEVER perform
this test with unit running, as serious INJURY
will result.
a)
Check all wiring connections, plugs, etc.
b)
Replace the heat triac.
c)
Replace the PLB
5)
If the heater assembly has a manual reset
thermal breaker, push the red button. If it has
tripped, you will hear a click when it resets.
There should now be conductivity across the
terminals. If not, replace the breaker.
6)
With power off, remove wires from the terminals
of the automatic reset thermal breaker. Check
for conductivity across the breaker. If the unit
is not hot and there is no conductivity, then
replace the breaker.
7)
With power off, check for continuity across
the heater block. Do this by connecting to
the neutral terminal of the terminal block
and the white wire that was removed from
the automatic reset thermal breaker. Correct
resistance depends on the heater, but it should
be somewhere between 2-20 ohms. If the unit
has a two-stage heater, it will require testing
between the neutral wire and the wires off
each thermal breaker. These heaters have two
separate circuits. Removing the heater block is
optional for this test.
8)
Ensure the drain tube is connected to the unit.
11
Truck HVAC Advanced Troubleshooting
Symptom: Unit Does Not Make Sufficient/Any Heat
(Diesel-Fired Heater)
1)
Check voltage at PLB with unit off. Voltage
should be the same as what is listed on the
dataplate. If not, problems may exist with the
inverter or other power source.
2)
Check all fuses on the diesel-fired heater.
3)
Press HEAT on the keypad. Move the setpoint
to a temperature higher than the space
temperature. The “HEATING” light should
illuminate. If it does not, recheck the setpoint.
If this still does not work, perform a Factory
Memory Reset. If this fails to alleviate the
problem, replace the PLB.
4)
5)
If the temperature in the space does not agree
with the display, check to make sure the unit is
not set on Celsius. To do this, press OFF, then
SET, then DOWN, SET, and UP simultaneously.
Toggle between °F and °C using the up or
down arrows. Press OFF. If the display does not
show the correct temperature, then you should
replace the TSEP.
When the “HEATING” light does illuminate,
check for voltage at the coil of the ice cube
relay. Once the relay has voltage, the contacts
will close, directing 12VDC to the Time Delay
Relay (TDR). The TDR is set at four (4)
minutes. After the appropriate timeout, the
12VDC should be directed back toward the
diesel-fired heater.
a.
6)
7)
12
If the ice cube relay has power at the coil
terminals, but does not close, replace the
relay.
b.
If the ice cube relay does not get power at
the coil terminals, replace the PLB.
c.
If the ice cube relay closes, but the TDR
does not time out at the set time, replace
the TDR.
If the heater still does not function, hook up the
Espar diagnostic tool, and check for operation
and fault codes. Refer to the Espar manual for
further assistance.
Ensure the drain tube is connected to the unit.
Symptom: Temperature in Space Does Not Seem to
Agree with Display on Keypad
1)
Check location of sensor to make sure that it is
still mounted correctly.
2)
Move sensor to better location, i.e. either at the
return air grill or somewhere in the space to be
conditioned.
3)
Check for unsealed openings in the space
where the HVAC unit is mounted. Air from
outdoors will not only throw off the reading, but
will also reduce the amount of hot or cold air
that the space to be conditioned receives.
4)
If the temperature in the space does not agree
with the display, check to make sure the unit
has not been switched to Celsius. To do this,
press OFF, then SET, then DOWN, SET, and
UP simultaneously. Toggle between °F and °C
using the up or down arrows. Press OFF.
5)
If the display does not show the correct
temperature, replace the sensor (TSEP).
Symptom: Setting of Keypad Changes When Using a
CB or Remote Control
1)
Ensure that CXP cable is not run together with
either a CB antenna cable or DC wires.
2)
CXP cable should not have excess coiled up. If
there is much excess cable, order a shorter one
and replace.
3)
Cover up the IR sensor on the SMX keypad.
This is at the top left of the control. If this
works, and the remote control is not used
for the HVAC system, the IR sensor can be
permanently disabled by cutting a trace on the
keypad board (consult Dometic Corporation,
Environmental Division for instructions).
Symptom: "HI PS" Fault Shows On Keypad Display
1)
The condenser may be dirty, rinse with water. If
it is dirty and greasy, rinse with water, soak with
a degreaser (not Purple Power or equivalent,
as they will eat aluminum) and rinse again. Do
not use a pressure washer.
ENGLISH
Truck HVAC Advanced Troubleshooting
2)
Ambient temperature could be too high. Unit
may not function in temperatures over 135oF or
lower if the condenser is installed near another
heat source or somewhere the heat becomes
trapped.
3)
Condenser fan failure. See “Condenser Fan
Does Not Operate."
4)
Faulty high pressure switch. Check by running
unit while watching the high side pressure. The
switch should trip at approximately 425PSI. If
the unit will not start at all, make a jumper to go
between the two wires on top of the pressure
switch. If the unit works acceptably, replace the
switch.
5)
On a Remote unit, check high side refrigerant
hose connections.
6)
Unit overcharged with refrigerant. Check
superheat as described in “Unit Does Not Make
Sufficient/Any Cool Air.”
ENGLISH
13
14
ENGLISH
Truck HVAC Advanced Troubleshooting
3. SUPERHEAT METHOD OF INITIAL CHECKING OF REFRIGERANT CHARGE
1.
The Superheat Method for Determination of
Charge Condition: To do this, you will need a
temperature sensor mounted on the suction line
near the evaporator coil, and a gauge set connected
to the unit. Use a refrigerant Pressure-Temperature
(P-T) chart for the refrigerant noted on the dataplate
to find the correct temperature at the pressure
shown on the low-side gauge. NOTE: If refrigerant
is a blend (R417a, R407c, etc.), you must use
the DEW point part of the chart. Subtract the
temperature shown on the suction line sensor from
the temperature obtained from the P-T chart. That
number should be between 6-12oF. If the number
is too high, you must add refrigerant. If the unit has
lost a majority of the charge, then look for a leak.
Repair leak, pressure test, evacuate, and charge
with the amount listed on the dataplate.
ENGLISH
15
16
ENGLISH
Truck HVAC Advanced Troubleshooting
4. DC-POWERED SYSTEM TROUBLESHOOTING
Symptom: HVAC System Will Not Power Up
1)
Turn inverter on. If the green LED light does not
remain lit, please see “Inverter Does Not Initiate
Correctly.”
2)
If the HVAC control panel does not illuminate, go
to the section “Keypad Does Not Illuminate” in
the proper control section above.
3)
If the HVAC control panel does illuminate, but
does not produce any heating or cooling, then
see “Unit Does Not Make Sufficient/Any Cooling”
or “Unit Does Not Make Sufficient/Any Heating.”
Symptom: Inverter/Charger Not Charging Batteries
or Passing AC Power Through
1)
Confirm that your shorepower connection
has 120VAC. If you are using one of our
shorepower cables, it should have a green LED
light in the plug at the truck-end of the cord.
If no LED light turns on then no AC power is
present.
2)
Once you have AC power present at the truck,
check the inverter panel for a red LED and
a green LED. The green LED, when seen in
conjunction with a red LED indicates presence
of AC power at the inverter and charging of the
batteries.
3)
No green and red LED? Then check all AC
connections between the shorepower inlet and
the inverter.
4)
If AC power is present all the way to the
inverter, but no red and green LED is on, then
cycle the power on the inverter panel.
5)
Still no positive response? Follow instructions
in “Inverter Does Not Initiate Correctly.”
Symptom: Inverter Does Not Initiate Correctly
1)
Turn the inverter on. If it shows anything
other than a steady green light, see Section 4
“Inverter Mode Status Indicators” of the inverter
manual (Sections 7 or 8 in this manual).
2)
If the inverter shows a steady orange LED, turn
off the inverter, unplug the AC output cord at
the inverter, and then reactivate the inverter.
If the orange LED does not return, then there
may be an overload situation with the loads
applied to the inverter. Try removing loads one
at a time to isolate the problem.
3)
4)
5)
ENGLISH
If the orange LED does return, then try
removing the DC positive cable from the
inverter for a minimum of five minutes. During
this time, make sure that the inverter switch is
on. Before reconnecting the positive cable, turn
the inverter switch to off. Reconnect the cable,
and reactivate the inverter. If the orange LED
persists, then replace inverter.
If the inverter shows a blinking green light and
battery voltage is neither above 15.5VDC nor
below 10.5VDC, then try turning the inverter
power switch off, then on again.
If this does not remedy the situation, then
try removing the DC positive cable from the
inverter for a minimum of five minutes. During
this time, make sure that the inverter switch is
on. Before reconnecting the positive cable, turn
the inverter switch to off. Reconnect the cable,
and reactivate the inverter. If the blinking green
LED persists, then replace the inverter.
Symptom: Alternator Charging at Too High a Voltage
(Above 14.8VDC), High-Voltage Alarm
1)
Check battery terminal connections where
alternator/regulator connections are made for
tightness and corrosion. Clean and/or tighten
as required.
2)
Check both positive and negative power
connections at the alternator and at the battery
bank connection point.
3)
Check all DC connections for tightness and
corrosion. Clean and/or tighten as required.
4)
Check connection nut on the bottom of the
alternator/regulator for tightness.
5)
Outside temperature (i.e. battery temperature)
is below 65oF then battery voltage may be as
high as 14.8 to 15.2 volts.
17
Truck HVAC Advanced Troubleshooting
6)
For other potential issues, like error messages,
see Leece-Neville Alternator Voltage Regulator
Publication TSB-1059.
4)
For more information, see Leece-Neville
Alternator Voltage Regulator Publication TSB1059.
5)
Some voltage fluctuation is normal when the
alternator is operating, because of the way the
alternator regulator gets feedback from the
alternator output.
Symptom: Alternator Charging at Too Low a Voltage
(Below 12.5VDC)
1)
Batteries are low. Increase engine speed to
increase power output of the alternator.
2)
Check alternator output with a DC amp clamp
meter. Confirm the output against the dataplate
on the alternator.
3)
Check battery temperature, as it may be too
high. If battery temperature is over 60oC, then
voltage will be clamped at 12.8VDC. You can
see the temperature on the readout of the
alternator/regulator scroll by after the heading
“B1.”
4)
Check the alternator temperature; it may be
too high. If the alternator temperature is over
102oC, then field output will be clamped to a
maximum of 50% until alternator temperature
reaches 98oC. You can see the temperature on
the readout of the alternator/regulator scroll by
after the heading “AL1.”
5)
Check readout on alternator/regulator. Watch
for “FE,” then a number, which indicates field
output to alternator in percentages (0-100 %).
The higher the FE number, the higher the
alternator output should be. A high FE number,
with a low alternator output, may indicate an
alternator problem.
6)
For other potential issues, like error messages,
see Leece-Neville Alternator Voltage Regulator
Publication TSB-1059.
Symptom: Alternator Has No Output
1)
Alternator has a 30-second time delay, then a
soft ramp start. Wait for it to startup.
2)
Ignition must be in the run position to activate
the alternator/regulator.
3)
Is the alternator/regulator powered up? Check
for display on the regulator. If there is no
display, then check the 10-amp ATO-type fuse
located in the battery box.
4)
If the fuse is good, but there is still no display,
then check the 40-amp automotive relay that
is mounted near the regulator. You should
have 12VDC present on at least one of the red
wires and at least one of the brown wires. If no
voltage is present through either of the brown
wires, then you are not getting a signal from
the ignition switch. Trace the brown wire to find
out why. There is no fuse on the brown wire. If
you have no 12VDC present on either red wire,
then you are not getting power from the battery
bank. The 10-amp fuse is blown, the wire is
broken, or the wire has a bad connection. If
voltage is present where it should be, but the
regulator is not working, then replace the relay.
5)
If the fuse is good and there is a display, check
for voltage between the F+ and F- posts. If
there is no DC voltage, then the alternator/
regulator may be bad or a cable is broken.
If voltage is present (0-12VDC variable), but
there is no alternator output, then the alternator
may be bad. For more information, see LeeceNeville Alternator Voltage Regulator Publication
TSB-1059.
Symptom: Alternator Output Voltage Erratic
18
1)
Check battery terminal connections where
alternator/regulator connections are made for
tightness and corrosion. Clean and/or tighten
as required.
2)
Check both positive and negative power
connections at the alternator and at the battery
bank connection point.
3)
Perform “wiggle test” on alternator/regulator
temperature sensors, see page 10 of TSB1059.
Symptom: System Runtime Is Not as Long as It
Should Be or Used to Be
1)
Check all DC connections for tightness and
corrosion. Clean and/or tighten as required.
More than likely, there is a poor connection.
ENGLISH
Truck HVAC Advanced Troubleshooting
2)
Check for a bad battery. Disconnect all
connections and load test each battery
individually.
3)
Replace any non-locking nuts on the battery
terminals with locking ones from Dometic.
For issues more in depth having to do with the
inverter, please refer to the inverter manual.
For issues more in depth having to do with the
alternator and/or alternator/regulator, please refer to
the Leece-Neville Publication TSB-1059.
ENGLISH
19
20
ENGLISH
Truck HVAC Advanced Troubleshooting
5. DOMETIC WIRING DIAGRAMS
CONTENTS
Diagram Description or ID Number
Page No.
080413 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
080411 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
080418 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4163717 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
080410 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
080408 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
080405 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
080404 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
080398 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
080397 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
080394 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
080389 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
080385 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34-35
080384 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
080382 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
080377 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
080364 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
080359 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
080356 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Volvo – Cummins – Dometic System AC Wiring . . . . . . . . . . . . . . . . . . . . . . . . . 42
Volvo – Dometic-Only System AC Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Battery 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Battery 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Battery 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Battery 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Battery 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Battery 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Battery Cascadia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Battery Volvo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
ENGLISH
21
RED
REV.
DATE
RED
TRANSFORMER
115/24VAC 190VA
(4170035)
BLACK
REVISIONS
DESCRIPTION
YELLOW
WHITE
YELLOW
MADE BY
APPR BY
WHITE
BLACK
COMMON
NORMALLY
OPEN
NORMALLY
CLOSED
4 ' CABLE
3171602
SCALE:
DATE:
SIZE:
A
1:2
DOCID
Sheet
VENDOR
NO.
APR BY:
DWG BY:
1 of 1
KEA
SLW
080413
PART NUMBER:
SW
O.I
TRUCK A/C
WIRING DIGRAM
IGNITION INTERLOCK
Dometic Corporation
PROPRIETARY NOTE: THE INFORMATION CONTAINED WITHIN THIS DOCUMENT IS THE PROPERTY OF
DOMETIC CORPORATION. ANY ATTEMPT TO COPY OR DISTRIBUTE WITHOUT WRITTEN CONSENT FROM
DOMETIC CORPORATION SHALL BE CONSIDERED UNLAWFUL AND CAN BE CONTESTED IN A COURT OF LAW.
IGNITION INTERLOCK
RELAY (4131606)
NOTE: ATTACH TO NORMALLY OPEN
PIN FOR IDLING SOLUTIONS UNITS
BLACK
BLACK
BLACK
FEMALE PUSH ON
(4100400)
+12VDC INPUT FROM
IGNITION TO RELAY
CHASSIS GROUND
RING TERMINAL (4103700)
POWER LOGIC
CONTROL BOARD
(4240700)
DWG
22
REV
Drawing 080413 – Ignition Interlock Detail Diagram
Truck HVAC Advanced Troubleshooting
ENGLISH
ENGLISH
WI-736-013-VA
Date:
Date:
12/14/2007
Qt Voltage Adjustment
Rev: A
10/7/08
Shown on
control
“LO FC”
Measure
voltage/frequency at
Dometic Power Logic
Box input terminals with
good quality meter, such
as Fluke 179
”HI AC”
Shown on
Control
Adjust generator using
manufacturer’s
recommendations to
within the above given
guidelines.
No
Output of generator is
104-127VAC and 5763hz while loaded?
Consult the dataplate before any
adjustments are made. If you are working with a
230VAC unit, you will have to factor the voltage as
twice of what is showing on
the display, i.e. if the
display shows “15” then the corresponding AC
voltage would actually be 230, not 115.
NOTE:
Check voltage at Qt control. Press “MODE”
and “-“ at same time until “01” is displayed.
Then use “+” key until “08” is shown. Press
“MODE” again, then use the “+” or “-“ to
make the number shown agree with the last
two digits of the generator
voltage. When
completed, press “Fan” button.
These Work Instructions address issues where the Dometic Qt control indicates incoming
voltage or low incoming frequency.
Title:
Electrical Box
Prepared By: Ken Allen
Appr oved By:
Page:
1 of 1
Work
Instruction
Drawing 080411 – Qt Voltage Adjustment Instructions
Operation
Complete
Yes
Truck HVAC Advanced Troubleshooting
23
REV.
-
DATE
Wire Labeled
"Ground"
Wire Labeled
"Stator"
Back of
Alternator
DC
Negative
30
REVISIONS
DESCRIPTION
+
85
DC
Positive
Stator Terminals
Stator Terminals
Stator Terminals
MADE BY
87
APPR BY
86
Relay Terminal No.
30
85
86
87
Connection Point
Charge Lite Wire
Stator Tap
Ground (-12vdc)
Positive (+12vdc)
DOCID
Sheet
1:2
02/25/09
SCALE:
DATE:
SIZE:
A
VENDOR
NO.
APR BY:
DWG BY:
1 of 1
KEA
080418
PART NUMBER:
SW
Cruisair
O.I.
Volvo Charge Lite Relay Hook-up
See also 4163717
Dometic Corporation
PROPRIETARY NOTE: THE INFORMATION CONTAINED WITHIN THIS DOCUMENT IS THE PROPERTY OF
DOMETIC CORPORATION. ANY ATTEMPT TO COPY OR DISTRIBUTE WITHOUT WRITTEN CONSENT FROM
DOMETIC CORPORATION SHALL BE CONSIDERED UNLAWFUL AND CAN BE CONTESTED IN A COURT OF LAW.
To Charge Lite Relay
Wire Labeled
"12VDC"
Wire Labeled
"Charge Lite Wire"
To Charge Lite Wire
(removed from old
Alternator's "I" Terminal)
DWG
24
REV
Drawing 080418 – IVolvo Charge Lite Relay Hook-up Diagram
Truck HVAC Advanced Troubleshooting
ENGLISH
1
2 feet x 2 pcs
5
6
85
4103703 14-16g
1/4" Stud Ring Term
4103705 14-16g
3/8" Stud Ring Term
4101000 14-16g
Butt Connector
3171602 -Two Cond
SJOOW Cable
4102700 14-16g
Push-on
4135000
PART NUMBER
86
87
30
87
86
85
2
2
2
1 1/2"
2
1 1/2"
2/25/09
DATE
A
REV.
PROPRIETARY NOTE: THE INFORMATION CONTAINED
WITHIN THIS DOCUMENT IS THE PROPERTY OF DOMETIC
CORPORATION. ANY ATTEMPT TO COPY OR DISTRIBUTE
WITHOUT WRITTEN CONSENT FROM DOMETIC
CORPORATION SHALL BE CONSIDERED UNLAWFUL AND
CAN BE CONTESTED IN A COURT OF LAW.
REVISIONS
DESCRIPTION
Correct spelling of "Zip" in Notes Section
MADE BY
KEA
NOTES:
1) Connect Push-Ons to Relay pins, as indicated by matching the numbers shown in the triangles
2) After connection, include one Zip Tie around both cables approximately 3" from relay
3) Use Label Maker to create the labels as indicated in the notes above.
1
2
4
2
3
1
4
QTY.
1
30
ITEM NO.
1
APPROVED
6
SCALE:
DATE:
SIZE:
B
1:2
DOCID
Sheet
VENDOR
NO.
APR BY:
DWG BY:
1 of 1
KEA
White Wire. Label
"Charge Light Wire"
Black Wire. Label
"12VDC"
4"
Black Wire. Label
"GROUND"
5
4
4
3
SW
4163717
PART NUMBER:
A
Harness Volvo Charge Light Relay
Dometic Corporation
6
4"
White Wire. Label
"STATOR"
DWG
ENGLISH
REV
Drawing 4163717 – Harness Volvo Charge Light Relay Detail
Truck HVAC Advanced Troubleshooting
25
Yellow
REV.
+ Common
N.O.
Red/Blk
FACTORY WIRING
12VDC Neg. - Position #2 - Black
12VDC Pos. - Position #1 - Red
12VDC +
PROPRIETARY NOTE: THE INFORMATION CONTAINED
WITHIN THIS DOCUMENT IS THE PROPERTY OF DOMETIC
CORPORATION. ANY ATTEMPT TO COPY OR DISTRIBUTE
WITHOUT WRITTEN CONSENT FROM DOMETIC
CORPORATION SHALL BE CONSIDERED UNLAWFUL AND
CAN BE CONTESTED IN A COURT OF LAW.
12VDC -
Dometic Q Control Board
DATE
WHT/BLK
Wht/Blk -Position #4 (not used)
Red/Blk
REVISIONS
DESCRIPTION
WHT/RED
12VDC Switched. - Position #3
Blk/Red
Generator Start Signal, where 12vdc negative is switched. Suitable for Cummins.
Connection via Cummins-provided plug on generator wire harness.
Other wiring not shown for clarity.
MADE BY
3
4
DWG BY:
APR BY:
nts
SCALE:
1 of 1
10/2/07
DOCID
Sheet
VENDOR
NO.
DATE:
SIZE:
KEA
SW
080410
PART NUMBER:
A
WIRING DIAGRAM- Gen Start Harness
for Cummins Generator
Dometic Corporation
B
Tyco Mini-Mate-n-lok
Dual Row, 4 circuits
PN 17267-1
APPROVED
6' Long
Harness
1
2
Pin-out
detail
DWG
26
REV
Drawing 080410 – Gen Start Detail Drawing for Use With Cummins Generator
Truck HVAC Advanced Troubleshooting
ENGLISH
-12VDC
K
GND
YELLOW
OPTIONAL
120 V OUT
WHITE
WHITE
WHITE
Optional Purple
PURPLE
NOTE: Attach to Norm.
Open pin on for Idling
Solutions Units
Norm. Closed
Norm. Open
OPTIONAL
Ignition
Interlock
Relay
RED
THERMAL BREAKER
START CAP
Opt.WHITE
Optional BLACK
START
RELAY
Optional
Start Kit
710035041
10/3/2008
DATE
REV.
REVISIONS
DESCRIPTION
Revise Hardware Layout On P/L Board
MADE BY
BB
OPTIONAL or FIELD WIRING
APPROVED
DWG BY:
APR BY:
nts
SCALE:
1 of 1
1/9/08
DOCID
Sheet
VENDOR
NO.
DATE:
SIZE:
B
RED
BLACK
R
BLACK
COMP.
OVERLOAD
PROTECTION
PURPLE
KEA
C
-
PINK
S
COMPRESSOR
24 VOLT DC
COND. FAN
SW
080408
PART NUMBER:
A
WIRING DIAGRAM- ASCDQ, ASCEQ
Dometic Corporation
PURPLE
+
RECTIFIER
FILTER
CAP
PTCR. If optional kit is used, remove PTCR
RUN
CAP
Optional PINK
PURPLE
12VDC input from ignition to Relay.
EVAP. FAN
OPTIONAL GENERATOR START SIGNAL-( 12 VDC TO BOARD REQ'D )
12 VOLTS NEG.
12
VDC
+
BLACK
BLACK
Common
RED
WHITE
White Hi Temp
A
OPTIONAL 2nd Heater
L-1
FACTORY WIRING
High Pressure
Jumper
PROPRIETARY NOTE: THE INFORMATION CONTAINED
WITHIN THIS DOCUMENT IS THE PROPERTY OF DOMETIC
CORPORATION. ANY ATTEMPT TO COPY OR DISTRIBUTE
WITHOUT WRITTEN CONSENT FROM DOMETIC
CORPORATION SHALL BE CONSIDERED UNLAWFUL AND
CAN BE CONTESTED IN A COURT OF LAW.
ED
R
BL
AC
To 12VDC
Source
+12
VDC
REQ'D
FOR
OPT.
GEN
START
EVAP
SENSOR
YELLO
W
COMP.
TEMP
SENSOR
WHITE
N/L2
120 V 60 HZ IN
DWG
ENGLISH
AIR TEMP
SENSOR
REV
Drawing 080408 – Wiring Diagram ASCDQ, ASCEQ
Truck HVAC Advanced Troubleshooting
27
9/30/2008
DATE
A
REV.
BLACK
REVISIONS
DESCRIPTION
Add Medium Heat Setting
RED
BLACK
RED
MADE BY
BB
APPR BY
120 VOLT
COIL RELAY
ORANGE
12 VOLT DC
TIME DELAY
RELAY
SET TO 4 Min.
BLUE
Dometic Wire Harness
# 4163746
DWG BY:
APR BY:
nts
SCALE:
1 of 1
9/30/08
DOCID
Sheet
DATE:
SIZE:
A
VENDOR
NO.
BB
080405
PART NUMBER:
SW
P-1434
A
Cruisair
Diagram Wiring Truck"Q" PLB
To ESPAR Diesel Heater
Dometic Corporation
PROPRIETARY NOTE: THE INFORMATION CONTAINED WITHIN THIS DOCUMENT IS THE PROPERTY OF
DOMETIC CORPORATION. ANY ATTEMPT TO COPY OR DISTRIBUTE WITHOUT WRITTEN CONSENT FROM
DOMETIC CORPORATION SHALL BE CONSIDERED UNLAWFUL AND CAN BE CONTESTED IN A COURT OF LAW.
Resistor Assy:
Blue: Low Heat
Black:Medium Heat
Red:High Heat
RED
WHITE
WHITE
GREEN
DWG
28
REV
Drawing 080405 – Qt Control to ESPAR Heater Detail Drawing
Truck HVAC Advanced Troubleshooting
ENGLISH
Drawing 080404 – EHCEX ESBAR Ready
Truck HVAC Advanced Troubleshooting
ENGLISH
29
30
Internal Wiring of Auxillary HVAC Unit
"TERM2" Connection
"N/L2" Connection
WHT
BLUE
-12
RED
ED
WHT/R
W
YELLO
+12
ting
Exis
BLACK
GREEN
WHT
PUR
PLE
l
o
ontr
ed c
spe
ires
fan w
1) For Freightliner trucks, use Black as -12 (cavity #3), Orange as +12 (cavity #4), and blue/orange wire (Cavity #6) as speed control.
NOTES:
+12
- 12
Speed Control
Existing fan
wires
Truck Rear HVAC Module
Cut existing wires,
then butt splice in
the new wires
Truck rear HVAC
control
D
RE
+
To 12VDC power source (20' cable)
RED
BLK
YELLOW
WHT/RED
REV
A
B
C
4/1/07
STATUS:
CONFIDENTIAL
DESCRIPTION
Modify resistor selection
Chg wire from ORANGE to BLK
R2 value from 2k to 390 ohm
R1=2.0k ohm, 2 watt
R2=390 ohm, 1 watt
R1
RED
RED
CANbus -Style Speed Control
Module for OEM Truck Rear HVAC unit Fan Control
DATE:
None
-
GRN
8
7
B
6
5
9
3
2
4
BLUE
1
A
WHITE
RED
E
NG
ORA
T
WH
PURPLE
Fan Speed Control Module
Dometic Corporation
SCALE:
"House" Battery Bank 12VDC
To 120VAC auxilary HVAC unit (3' cable)
To truck's rear HVAC unit (3' cable)
Fuse 15A
BLK
Drawing 080398 – CAN-bus Style OEM Fan Control MOdule
R2
080398
KEA
BY
KEA
KEA
KEA
DRAWING NUMBER
REV C
DRAWN BY:
DATE
6/2/07
7/6/07
8/16/07
Truck HVAC Advanced Troubleshooting
ENGLISH
Drawing 080397 – Resistor-Style OEM Fan Control Module
Truck HVAC Advanced Troubleshooting
ENGLISH
31
RED
CXP
CABLE
PROPRIETARY NOTE: THE INFORMATION CONTAINED
WITHIN THIS DOCUMENT IS THE PROPERTY OF DOMETIC
CORPORATION. ANY ATTEMPT TO COPY OR DISTRIBUTE
WITHOUT WRITTEN CONSENT FROM DOMETIC
CORPORATION SHALL BE CONSIDERED UNLAWFUL AND
CAN BE CONTESTED IN A COURT OF LAW.
GND.
115 V
SUPPLY
SMX
DISPLAY
HEAT
TRIAC
PURPLE
YELLOW
TEMP
SENSOR
BLACK
WHITE
RUN
CAP
REV.
JUMPER
LOW
PRES.
TERMS.
DATE
RED
PURPLE
WHITE
COOL
TRIAC
K
BLAC
5(9,6,216
C
R
ORANGE
S
MADE BY
WHITE
BROWN
BLUE
BLUE
DESCRIPTION
HI TEMP WIRE
PURPLE
APPROVED
RED
BLACK
BLACK
+
AC
RECTIFIER
RED
YELLOW
WHITE
-
SCALE:
DATE:
SIZE:
2/14/07
nts
APR BY:
DWG BY:
DOCID
1 of 1
Sheet
VENDOR
NO.
BB
AC
ORANGE
COND. FAN
SPEED RELAY
CONDENSER FAN
24 VOLT DC
WIRING DIAGRAM
EHCEX 7
080394
PART NUMBER:
Dometic Corporation
RED
B
FUSE
3 AMP
FILTER
CAPACITOR
24 VOLT
TRANSFORMER
EVAP. FAN
CAPACITOR
BLACK
WHITE
EVAP. FAN
BLUE
YELLOW
T-STAT
PINK
WHITE
N
YELLOW
HI
PRES
SW.
L-1
O.I.
P-1364
SW
COND.
FAN
SPEED
PRES. SW.
GE
HEATER
ELEMENT
DWG
ORAN
32
REV
Drawing 080394 – EHCEX7
Truck HVAC Advanced Troubleshooting
ENGLISH
AC
K
PROPRIETARY NOTE: THE INFORMATION CONTAINED
WITHIN THIS DOCUMENT IS THE PROPERTY OF DOMETIC
CORPORATION. ANY ATTEMPT TO COPY OR DISTRIBUTE
WITHOUT WRITTEN CONSENT FROM DOMETIC
CORPORATION SHALL BE CONSIDERED UNLAWFUL AND
CAN BE CONTESTED IN A COURT OF LAW.
L-1
120 IN
NEUTRAL
120 V OUT
FACTORY WIRING
12 VOLTS NEG.
WHITE
WHITE
EVAP FAN CAP
BLACK
START
RELAY
START CAP
PURPLE
BROWN
WHITE
BLACK
9/29/2008
DATE
A
REV.
REVISIONS
DESCRIPTION
Use New Board Hardware Layout
CUSTOMER WIRING
MADE BY
BB
APPROVED
OPTIONAL GENERATOR START SIGNAL-( 12 VDC TO BOARD REQ'D )
12 V IN
WHITE HI- TEMP
WIRE
BLUE
EVAP. FAN
VENDOR
NO.
PURPLE
PURPLE
PINK
BLACK
APR BY:
nts
SCALE:
1 of 1
DWG BY:
DOCID
Sheet
6/26/07
DATE:
SIZE:
BB
-
C
S
COMPRESSOR
SW
24 VOLT DC
COND. FAN
2-PIN
CONNECTOR
080389
PART NUMBER:
P-1389
A
WIRING DIAGRAM- EHCEQ SPLIT A/C
SMXIII
R
COMP.
OVERLOAD
PROTECTION
PURPLE
+
WHITE
BLACK
RECTIFIER
FILTER
CAP
RED
Dometic Corporation
B
RUN CAP
PINK
THERMAL BREAKER
STRIP
HEATER
ELEMENT
BROWN
RED
12 VDC OUT
BLACK
GRAY
12
VOLT
RELAYS
GND
N / L2
OPTIONAL 2nd Heater
HI
PRES
SW
YELLOW
24 VOLT TRANSFORMER
ED
R
BL
12
VDC
+
OPTIONAL
12 VDC -
REQ'D
FOR
GEN
START
Y
EVAP
SENSOR
COMP.
TEMP
SENSOR
ELLOW
YELLOW
YELLOW
WHITE
BLACK
DWG
ENGLISH
AIR TEMP
SENSOR
REV
Drawing 080389 – Remote Qt Controlled units
Truck HVAC Advanced Troubleshooting
33
Truck HVAC Advanced Troubleshooting
Transformer, DC Fan, Fuse and Capacitor Replacement Kit Instructions For ASCDX7, 10 & 14
ASCDX7 & 10 replacement kit – 710035015
ASCDX14 replacement kit – 710035020
6)
Connect the two yellow (14 GA) wires from
the transformer secondary to the bottom left
and top right terminals (ac terminals) on the
square shaped rectifier (this is where the old
transformer orange wires were connected).
Transformer, DC Fan, Fuse and Capacitor Removal:
1)
Disconnect power to ASCDX unit and remove
electrical box cover.
7)
The white wire from the transformer secondary
should be capped off.
2)
Disconnect black wire from transformer primary
to ac fuse.
8)
3)
Remove and discard the ac fuse.
Connect the new 15,000uF filter capacitor wires
to rectifier – black to bottom right terminal and
red to top left terminal.
4)
Disconnect red wire from transformer primary
to #2 lug terminal strip.
9)
5)
Disconnect the two orange wires from the
transformer secondary to the square shaped
rectifier (black) terminals.
Connect the black and red wires from the DC
condenser fan to the piggy-back terminals on
the filter cap - black and red wires respectively.
6)
Unbolt existing transformer from unit electrical
box and discard (ASCDX7 & 14 transformer is
located under the evaporator blower inside the
unit).
7)
Disconnect the filter capacitor black and red
wires from the rectifier.
8)
Disconnect the black and red fan wires from
the piggy-back terminals on the filter capacitor
leads and discard the 470uF filter cap.
9)
Remove 24VDC condenser fan and discard.
10) Attach the filter cap with a wire tie to a group
of internal wires to prevent the cap leads from
being pulled out.
Transformer, DC Fan, Fuse and Capacitor
Installation:
34
1)
Install the replacement transformer with self
tapping screws provided.
2)
Install new 24VDC condenser fan.
3)
Connect the black wire (16 GA) from the
transformer primary to the ac fuse.
4)
Install the new ac fuse provided in fuse holder
(3amp – ASCDX7 & 10, 5amp – ASCDX14).
5)
Connect the red wire (16 gal.) from the
transformer primary to the terminal strip #2 lug
down from the top.
ENGLISH
Drawing 080385 – Transformer, DC Fan, Fuse and Capacitor Replacement Kit for ASCDX7, 10 & 14
Truck HVAC Advanced Troubleshooting
ENGLISH
35
Drawing 080384 – ASCEX7 Espar Ready
Truck HVAC Advanced Troubleshooting
36
ENGLISH
5/31/2006
10/2/2008
DATE
A
C
REV.
4106330
3
12/12/2006
3173316
2
B
4100400
1
Deutch # DT04-3
1/4" Push On Molex 190190031 Or
Equal
16-2 Type SJOOW
General Cable- Carol Brand #
01312.41.01 or Equiv.
Description
Black
White
REVISIONS
DESCRIPTION
Change to 16-2 Type SJOOW Cable
Change to Non Insulated Terminals
Add Component Manufacturer Specifications
Deutch Connector Requires:
2 Deutch # 0460-215-16141 Pins
1 Deutch # W3P Wedgelock
1 Deutch # 114017 Sealing Plug
Dometic P/N
No.
1
1
MADE BY
BB
BB
BB
1
10 Feet
2
Quan.
APPR BY
Wire Positions In 4106330 Connector
Position A: Black Wire
Position B: White Wire
Position C: Blank Sealing Plug
3
DOCID
Sheet
VENDOR
NO.
APR BY:
DWG BY:
1 of 1
10/4/05
SCALE:
DATE:
SIZE:
A
BB
080382
PART NUMBER:
Condenser Fan Wiring Cable
EHCEQ Electrical Boxes
Dometic Corporation
PROPRIETARY NOTE: THE INFORMATION CONTAINED WITHIN THIS DOCUMENT IS THE PROPERTY OF
DOMETIC CORPORATION. ANY ATTEMPT TO COPY OR DISTRIBUTE WITHOUT WRITTEN CONSENT FROM
DOMETIC CORPORATION SHALL BE CONSIDERED UNLAWFUL AND CAN BE CONTESTED IN A COURT OF LAW.
2
DWG
ENGLISH
REV
Drawing 080382 – Condenser Power Cable on Qt Controlled Units
C
SW
Truck HVAC Advanced Troubleshooting
37
Drawing 080377 – EHCEX Electrical Box Detail on SMXII Controlled Remote Units
Truck HVAC Advanced Troubleshooting
38
ENGLISH
Drawing 080364 – EHCDX Detail for SMXII Controlled Remote Units
Truck HVAC Advanced Troubleshooting
ENGLISH
39
Drawing 080359 – ASCDX14 Self-Contained Units
Truck HVAC Advanced Troubleshooting
40
ENGLISH
Drawing 080356 – ASCDX7 & ASCEX7 Self-Contained Units
Truck HVAC Advanced Troubleshooting
ENGLISH
41
Volvo/Cummins/Dometic System AC Wiring
Truck HVAC Advanced Troubleshooting
42
ENGLISH
Volvo/Dometic-Only System AC Wiring
Truck HVAC Advanced Troubleshooting
ENGLISH
43
44
Alternator
-
+
-
Battery 1
+
AC Wiring
DC Wiring
+
Battery 2
-
Factory Negative alternator lead
Factory Positive alternator lead
Add a 2/0 cable from positive
alternator stud to positive starter
stud. 3/8" ring terminal for the
alternator, 1/2" for the starter.
+
+
Battery 3
Starter
-
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
DOMETIC CORP. ANY
REPRODUCTION IN PART OR AS A WHOLE
WITHOUT THE WRITTEN PERMISSION OF
DOMETIC COR IS PROHIBITED.
-
APPLICATION
NEXT ASSY
Overcurrent
Protector
+
PROPRIETARY AND CONFIDENTIAL
Factory starter
cable
Inverter
120VAC Line
USED ON
DO NOT SCALE DRAWING
FINISH
MATERIAL
INTERPRET GEOMETRIC
TOLERANCING PER:
DIMENSIONS ARE IN INCHES
TOLERANCES:
FRACTIONAL
ANGULAR: MACH
BEND
TWO PLACE DECIMAL
THREE PLACE DECIMAL
COMMENTS:
Q.A.
MFG APPR.
ENG APPR.
CHECKED
DRAWN
UNLESS OTHERWISE SPECIFIED:
DATE
9/29/08
NAME
KEA
SCALE: 1:1 WEIGHT:
B Battery1
SIZE DWG. NO.
SHEET 1 OF 1
B
REV
Day Cab system -HVAC System
Powered by Inverter and
Multiple Starting/
Deep Cycle Batteries
TITLE:
Dometic Environmental
NOTES:
1) Batteries must be of the AGM dual purpose deep cycle/
startingtype
2) Alternator must be upgraded. Discuss with Dometic
Applications Department for recommendation.
3) Inverter must be of approved type by Dometic in order
to insure proper operation of system.
4) Cable size should be choosen based on voltage drop
and load.
HVAC Unit
Battery 1 – Day Cab System, HVAC Powered by Inverter and Multiple Starting/Deep Cycle Batteries
Truck HVAC Advanced Troubleshooting
ENGLISH
ENGLISH
+
+
Primary (OEM) Box
-
-
+
Start
Battery 2
Start
Battery 1
Factory Positive Alternator Cable
Factory Negative Alternator Cable
+
Battery
Separator
Factory Starter Cable
Starter
Add at least a 2/0 cable from the
alternator positive to the starter
positive lug. 3/8" ring terminal on
the alternator, 1/2" at the starter.
NOTES:
1) House Batteries must be of the AGM deep cycle type
2) Alternator shall be upgraded. Discuss with Dometic
Applications Department for recommendation.
3) Inverter must be of approved type by Dometic in order
to insure proper operation of system.
4) All added DC cables shall be of 2/0 size or larger,
unless otherwise noted on drawing.
5) Either bank may have as many or few batteries
in order to provide the desired run time.
-
Alternator
AC Wiring
DC Wiring
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
DOMETIC CORP. ANY
REPRODUCTION IN PART OR AS A WHOLE
WITHOUT THE WRITTEN PERMISSION OF
DOMETIC CORP IS PROHIBITED.
PROPRIETARY AND CONFIDENTIAL
Temperature
Sensor
Regulator
Ground
+12VDC Sense
To Alternator
Regulator
+
APPLICATION
NEXT ASSY
-
House
Battery 1
USED ON
-
Secondary Box
-
House
Battery 3
DO NOT SCALE DRAWING
FINISH
MATERIAL
INTERPRET GEOMETRIC
TOLERANCING PER:
DIMENSIONS ARE IN INCHES
TOLERANCES:
FRACTIONAL
ANGULAR: MACH
BEND
TWO PLACE DECIMAL
THREE PLACE DECIMAL
COMMENTS:
Q.A.
MFG APPR.
ENG APPR.
CHECKED
DRAWN
UNLESS OTHERWISE SPECIFIED:
+
House
Battery 2
HVAC Unit
Battery 2 – HVAC System Powered by Inverter and Separate Banks with Battery Separator
+
DATE
9/29/08
NAME
KEA
-
+
Overcurrent
Protection
SCALE: 1:1 WEIGHT:
B Battery2
SIZE DWG. NO.
SHEET 1 OF 1
D
REV
HVAC System Powered by
Inverter and Separate Battery
Banks with Batt. Separator
TITLE:
Dometic Environmental
House
Battery 4
-
Inverter
+
120VAC Line
Truck HVAC Advanced Troubleshooting
45
46
-
Start
Battery 1
+
Factory Positive
alternator cable
Factory Negative
alternator cable
-
Start
Battery 2
+
Factory Starter
Cable
Starter
Add at least a 2/0 cable from the
alternator positive to the starter positive
lug. 3/8" ring terminal at the alternator,
1/2" at the starter.
NOTES:
1) House Batteries must be of the AGM deep cycle type
2) Alternator must be upgraded. Discuss with Dometic
Applications Department for recommendation.
3) Inverter must be of approved type by Dometic in order
to insure proper operation of system.
4) All added cables shall be of 2/0 or larger, unless
otherwise specified on the drawing.
5) Either bank may have as many or few batteries in
order to provide the desired run time.
Alternator
AC Wiring
DC Wiring
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
DOMETIC CORP. ANY
REPRODUCTION IN PART OR AS A WHOLE
WITHOUT THE WRITTEN PERMISSION OF
DOMETIC CORP. IS PROHIBITED.
PROPRIETARY AND CONFIDENTIAL
Battery
Separator
HVAC Unit
APPLICATION
NEXT ASSY
Temperature
Sensor
USED ON
-
House
Battery 1
+12VDC Sense
Regulator Ground
To Alternator
Regulator
-
+
DO NOT SCALE DRAWING
FINISH
MATERIAL
INTERPRET GEOMETRIC
TOLERANCING PER:
DIMENSIONS ARE IN INCHES
TOLERANCES:
FRACTIONAL
ANGULAR: MACH
BEND
TWO PLACE DECIMAL
THREE PLACE DECIMAL
COMMENTS:
Q.A.
MFG APPR.
ENG APPR.
CHECKED
DRAWN
UNLESS OTHERWISE SPECIFIED:
+
House
Battery 2
Inverter with Shorepower Pass-Thru
Capability OR Inverter/charger
Cab Power
Outlets
DATE
9/28/07
9/29/08
NAME
KEA
KEA
-
House
Battery 3
Overcurrent
Protection
+
Dometic Environmental
-
House
Battery 4
+
120VAC Line
SCALE: 1:1 WEIGHT:
D
REV
SHEET 1 OF 1
B Battery 3
SIZE DWG. NO.
HVAC System Powered by
Inverter and Separate Battery
Banks with Separator. Shore
power and cab power outlets
TITLE:
+
-
Y-Cord
Splitter
Shorepower
Inlet
Battery 3 – HVAC System Powered by Inverter/Charger and Separate Battery Banks with Battery Separator (Shore Power and
Cab Power Outlets Included)
Truck HVAC Advanced Troubleshooting
ENGLISH
ENGLISH
-
Start
Battery 1
-
Start
Battery 2
+
Primary (OEM) Box
+
Factory Positive alternator cable
Factory Negative alternator cable
Factory Starter
Cable
Starter
Add at least a 2/0 cable from the
alternator positive to the starter positive
lug. 3/8" ring terminal at the alternator,
1/2" at the starter.
NOTES:
1) House Batteries must be of the AGM deep cycle type
2) Alternator must be upgraded. Discuss with Dometic
Applications Department for recommendation.
3) Inverter must be of approved type by Dometic in order
to insure proper operation of system.
4) All added DC cables shall be 2/0 or larger unless
otherwise noted on the drawing.
5) Either bank may have as many or few batteries in
order to provide the desired run time.
Alternator
AC Wiring
DC Wiring
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
DOMETIC CORPORATION. ANY
REPRODUCTION IN PART OR AS A WHOLE
WITHOUT THE WRITTEN PERMISSION OF
DOMETIC CORP IS PROHIBITED.
PROPRIETARY AND CONFIDENTIAL
Battery
Separator
APPLICATION
NEXT ASSY
USED ON
-
House
Battery 1
Temperature Sensor
Regulator Ground
+12VDC Sense
To Alternator
Regulator
-
+
DO NOT SCALE DRAWING
FINISH
MATERIAL
INTERPRET GEOMETRIC
TOLERANCING PER:
DIMENSIONS ARE IN INCHES
TOLERANCES:
FRACTIONAL
BEND
ANGULAR: MACH
TWO PLACE DECIMAL
THREE PLACE DECIMAL
COMMENTS:
Q.A.
MFG APPR.
ENG APPR.
CHECKED
DRAWN
UNLESS OTHERWISE SPECIFIED:
+
House
Battery 2
+
NAME
KEA
DATE
9/29/08
-
+
Overcurrent
Protection
House
Battery 4
+
SCALE: 1:1 WEIGHT:
A
REV
SHEET 1 OF 1
B Battery 4
SIZE DWG. NO.
HVAC System Powered by
Inverter and Separate Battery
Banks with Separator.
Shorepower capability
TITLE:
Dometic Environmental
-
120VAC Line
Secondary Box
-
House
Battery 3
Inverter with Shorepower Pass-Thru
Capability OR Inverter/charger
HVAC Unit
Shorepower Inlet
Battery 4 – HVAC System Powered by Inverter/Charger and Separate Battery Banks with Battery Separator (Shore Power
Connection Included)
Truck HVAC Advanced Troubleshooting
47
48
+
-
Battery 1
+
Factory Positive Alternator
Cable
-
+
Factory Starter
Cable
Battery 2
+
Primary (OEM) Box
Factory Negative Alternator
Cable
-
-
Battery 3
+
-
-
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
DOMETIC CORPORATION. ANY
REPRODUCTION IN PART OR AS A WHOLE
WITHOUT THE WRITTEN PERMISSION OF
DOMETIC CORP IS PROHIBITED.
PROPRIETARY AND CONFIDENTIAL
+
-
APPLICATION
NEXT ASSY
+
Y-Cord Splitter
to GFCI Receptacle
HVAC Unit
USED ON
DO NOT SCALE DRAWING
FINISH
MATERIAL
INTERPRET GEOMETRIC
TOLERANCING PER:
DIMENSIONS ARE IN INCHES
TOLERANCES:
FRACTIONAL
ANGULAR: MACH
BEND
TWO PLACE DECIMAL
THREE PLACE DECIMAL
COMMENTS:
Q.A.
MFG APPR.
ENG APPR.
CHECKED
DRAWN
UNLESS OTHERWISE SPECIFIED:
Overcurrent
Protection
Battery 6
Secondary Box
+
Temperature Sensor
Regulator Ground
+12VDC Sense
To Alternator
Regulator
Battery 5
120VAC Line
Battery 4
Cab Power
Outlet
Starter
Add at least a 2/0 cable from the
alternator positive to the starter
posiive lug. 3/8" ring terminal at the
alternator, 1/2" at the starter.
NOTES:
1) ALLBatteries must be of the AGM deep cycle type
2) Alternator must be upgraded. Discuss with Dometic
Applications Department for recommendation.
3) Inverter must be of approved type by Dometic in order
to insure proper operation of system.
4) All added DC cables shall be of 2/0 size or larger, unless
otherwise noted on drawing.
5) Battery bank size may have as many or few batteries
in order to provide the desired run time.
Alternator
AC Wiring
DC Wiring
+
DATE
9/29/08
NAME
KEA
SCALE: 1:1 WEIGHT:
A
REV
SHEET 1 OF 1
B Battery 5
SIZE DWG. NO.
HVAC System Powered by
Inverter. Single starting/house
Battery Bank. Shore
power with cab power outlets
TITLE:
Dometic Environmental
Inverter with Shorepower Pass-Thru
Capability OR Inverter/charger
-
Shorepower Inlet
Battery 5 – HVAC System Powered by Inverter/Charger and Single Battery Bank (Shore Power Connection and Cab Power
Outlets Included
Truck HVAC Advanced Troubleshooting
ENGLISH
ENGLISH
-
Battery 1
+
Factory Positive alternator
Cable
Factory Negative alternator
Cable
-
+
-
+
-
Battery 3
+
Factory Starter Cable
Primary (OEM) Box
Battery 2
+
-
+
-
Battery 5
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
DOMETIC CORPORATION. ANY
REPRODUCTION IN PART OR AS A WHOLE
WITHOUT THE WRITTEN PERMISSION OF
DOMETIC CORP IS PROHIBITED.
-
APPLICATION
NEXT ASSY
USED ON
Secondary Box
+
Temperature Sensor
+12VDC Sense
Regulator Ground
Battery 6
120VAC Line
To Alternator Regulator
PROPRIETARY AND CONFIDENTIAL
Battery 4
Starter
Add at least a 2/0 size cable from the
alternator positive to the starter positive
lug. 3/8" ring terminal at the alternator,
1/2" at the starter.
NOTES:
1) ALLBatteries must be of the AGM deep cycle type
2) Alternator must be upgraded. Discuss with Dometic
Applications Department for recommendation.
3) Inverter must be of approved type by Dometic in order
to insure proper operation of system.
4) All added DC cables shall be of 2/0 size or larger, unless
otherwise noted on the drawing.
5) Battery bank may be as many or few batteries
in order to provide the desired run time.
Alternator
AC Wiring
DC Wiring
DO NOT SCALE DRAWING
FINISH
MATERIAL
INTERPRET GEOMETRIC
TOLERANCING PER:
DIMENSIONS ARE IN INCHES
TOLERANCES:
FRACTIONAL
ANGULAR: MACH
BEND
TWO PLACE DECIMAL
THREE PLACE DECIMAL
COMMENTS:
Q.A.
MFG APPR.
ENG APPR.
CHECKED
DRAWN
UNLESS OTHERWISE SPECIFIED:
Overcurrent
Protection
+
HVAC Unit
+
DATE
9/29/08
NAME
KEA
SCALE: 1:1 WEIGHT:
A
REV
SHEET 1 OF 1
B Battery 6
SIZE DWG. NO.
HVAC System Powered by
Inverter. Single starting/house
Battery Bank. Shore
power capability.
TITLE:
Dometic Environmental
Inverter with Shorpower passthrough OR inverter/cherger
-
Shorepower Inlet
Battery 6 – HVAC System Powered by Inverter/Charger and Single Battery Bank (Shore Power Connection Included)
Truck HVAC Advanced Troubleshooting
49
50
-
-
-
Battery 3
+
OEM
Battery
Disconnect
Switch
OEM Fuse
Block
+
+
Reg. Ground
NOTES:
1) House Batteries must be of the AGM deep cycle type
2) Alternator shall be upgraded. Discuss with Dometic
Applications Department for recommendation.
3) Inverter must be of approved type by Dometic in order
to insure proper operation of system.
4) Cable size is choosen based on voltage drop and
load. All cables shall be 2/0 unless otherwise noted
on drawing.
-
Battery 4
+
Temp. Sensor
.
2/0 Connector
Cables
-
Battery 5
+
12+ Sense
120VAC Line
PROPRIETARY AND CONFIDENTIAL
+
APPLICATION
NEXT ASSY
-
Battery 8
SECONDARY BOX
-
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
<INSERT COMPANY NAME HERE>. ANY
REPRODUCTION IN PART OR AS A WHOLE
WITHOUT THE WRITTEN PERMISSION OF
<INSERT COMPANY NAME HERE> IS
PROHIBITED.
-
+
Battery 7
+
Battery 6
Regulator "Ignition"
wire to Passenger side
dash for hookup to
Connector X-6 of the
SAM_Cab, Pin #10.
Y-Cord Splitter
to GFCI Receptacle
Cab Power
Outlet
Alternator
Regulator
Starter
Remove
factory
wires from
alternator.
Splice together,
insulate, and tie
up out of the way
To intake
grid heater
Add at least
a 2/0 positive
cable fromthe
alternator to the
positive starter
stud. 3/8" post at
alterntor, 1/2" post
at starter.
To Alternator
Regulator
Primary (OEM) BOX
Battery 2
+
-
AC Wiring
DC Wiring
Battery 1
+
Alternator
USED ON
DO NOT SCALE DRAWING
FINISH
MATERIAL
INTERPRET GEOMETRIC
TOLERANCING PER:
DIMENSIONS ARE IN INCHES
TOLERANCES:
FRACTIONAL
ANGULAR: MACH
BEND
TWO PLACE DECIMAL
THREE PLACE DECIMAL
COMMENTS:
Q.A.
MFG APPR.
ENG APPR.
CHECKED
DRAWN
UNLESS OTHERWISE SPECIFIED:
Overcurrent
Protection
HVAC Unit
+
DATE
9/28/07
9/29/08
NAME
KEA
KEA
SCALE: 1:1 WEIGHT:
A
REV
SHEET 1 OF 1
B Battery 7
SIZE DWG. NO.
Dometic HVAC System to FTL
Cascadia. Inverter/charger,
shorepower, and alternator
regulator
TITLE:
Dometic Environmental
Inverter with Shorepower Pass-Thru
Capability OR Inverter/charger
-
Shorepower Inlet
Battery 7 – HVAC System to FTL Cascadia Powered by Inverter/Charger (Shore Power Connection and Cab Power Outlets
Included)
Truck HVAC Advanced Troubleshooting
ENGLISH
ENGLISH
Left Front Tire
Factory Positive
New Positive
2/0 cable to
Starter Positive
Engine
Block
Factory Positive
Starter
NOTES:
1) Batteries must be of the AGM deep cycle type
2) Added cables must be 2/0 or larger.
3) Add a positive cable from positive on the alternator
to the positive post on the starter.
4) Add a negative cable from the Frame Ground Post
to the Truck side of the Negative Fuse (not the battery
box side.)
Field Wiring
Factory Wiring
Frame Ground
Post
Engine Ground
Post
Factory Negative
Alternator
Right Front Tire
-
-
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
DOMETIC CORP. ANY
REPRODUCTION IN PART OR AS A WHOLE
WITHOUT THE WRITTEN PERMISSION OF
DOMETIC COR IS PROHIBITED.
-
+
APPLICATION
NEXT ASSY
-
+
Positive Fuse
Negative Fuse
PROPRIETARY AND CONFIDENTIAL
+
+
Added 2/0
Negative cable
Factory Negative
USED ON
DO NOT SCALE DRAWING
FINISH
MATERIAL
INTERPRET GEOMETRIC
TOLERANCING PER:
DIMENSIONS ARE IN INCHES
TOLERANCES:
FRACTIONAL
ANGULAR: MACH
BEND
TWO PLACE DECIMAL
THREE PLACE DECIMAL
COMMENTS:
Q.A.
MFG APPR.
ENG APPR.
CHECKED
DRAWN
UNLESS OTHERWISE SPECIFIED:
Battery Box
Left Frame Rail
Right Frame Rail
DATE
10/2/08
NAME
KEA
SCALE: 1:1 WEIGHT:
REV
O.I.
SHEET 1 OF 1
B Battery-Volvo
SIZE DWG. NO.
Field added DC cabling for Volvo:
Change to upgraded alternator
for Dometic Battery Powered
HVAC System
TITLE:
Dometic Environmental
Battery Volvo – Field-Added DC Cabling for Volvo When Changing to Upgraded Alternator Used with Dometic Battery-Powered
HVAC Systems
Truck HVAC Advanced Troubleshooting
51
52
ENGLISH
Truck HVAC Advanced Troubleshooting
6. LEECE NEVILLE TSB-1059
ENGLISH
53
Technical Service
Bulletin
Source:
Leece-Neville Heavy Duty Systems Division - Arcade, NY USA
Date:
October 11, 2007
Bulletin No:
TSB-1059
Models:
MC-614 Voltage Regulator
Subject:
Voltage Regulator Installation and Troubleshooting Instructions
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Important: The information contained in this bulletin is intended for use by trained, professional technicians who have the proper
tools, equipment, and training to perform the required maintenance described above. This information is NOT intended for ‘do-ityourselfers’, and you should not assume that this information applies to your equipment. If you have any questions regarding this
information please visit our website at www.prestolite.com, or contact our technical service department at:
Leece-Neville Heavy Duty Systems
400 Main Street
Arcade, NY 14009
54
Page 1
Phone/Fax: (866) 288-9853
webmail@prestolite.com
ENGLISH
Technical Service
Bulletin
Date:
October 11, 2007
Bulletin No:
TSB-1059
,QVWDOODWLRQ
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Important: The information contained in this bulletin is intended for use by trained, professional technicians who have the proper
tools, equipment, and training to perform the required maintenance described above. This information is NOT intended for ‘do-ityourselfers’, and you should not assume that this information applies to your equipment. If you have any questions regarding this
information please visit our website at www.prestolite.com, or contact our technical service department at:
Leece-Neville Heavy Duty Systems
7585 Empire Drive
Florence, KY 41042
ENGLISH
Page 2
Phone/Fax: (866) 288-9853
webmail@prestolite.com
55
Technical Service
Bulletin
Date:
October 11, 2007
Bulletin No:
TSB-1059
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LQFKSLJWDLOVWRDGDSWWKH6PDUW6KXQWIHDWXUH7KH60$576+817IHDWXUHHQKDQFHVWKHFKDUJHDOJRULWKPIRU
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Important: The information contained in this bulletin is intended for use by trained, professional technicians who have the proper
tools, equipment, and training to perform the required maintenance described above. This information is NOT intended for ‘do-ityourselfers’, and you should not assume that this information applies to your equipment. If you have any questions regarding this
information please visit our website at www.prestolite.com, or contact our technical service department at:
Leece-Neville Heavy Duty Systems
400 Main Street
Arcade, NY 14009
56
Page 3
Phone/Fax: (866) 288-9853
webmail@prestolite.com
ENGLISH
Technical Service
Bulletin
Date:
October 11, 2007
Bulletin No:
TSB-1059
7URXEOHVKRRWLQJ5HIHUHQFH
)LJXUH
Important: The information contained in this bulletin is intended for use by trained, professional technicians who have the proper
tools, equipment, and training to perform the required maintenance described above. This information is NOT intended for ‘do-ityourselfers’, and you should not assume that this information applies to your equipment. If you have any questions regarding this
information please visit our website at www.prestolite.com, or contact our technical service department at:
Leece-Neville Heavy Duty Systems
7585 Empire Drive
Florence, KY 41042
ENGLISH
Page 4
Phone/Fax: (866) 288-9853
webmail@prestolite.com
57
Technical Service
Bulletin
Date:
October 11, 2007
Bulletin No:
TSB-1059
7URXEOHVKRRWLQJ5HIHUHQFH
:LULQJ+DUQHVV
Important: The information contained in this bulletin is intended for use by trained, professional technicians who have the proper
tools, equipment, and training to perform the required maintenance described above. This information is NOT intended for ‘do-ityourselfers’, and you should not assume that this information applies to your equipment. If you have any questions regarding this
information please visit our website at www.prestolite.com, or contact our technical service department at:
Leece-Neville Heavy Duty Systems
400 Main Street
Arcade, NY 14009
58
Page 5
Phone/Fax: (866) 288-9853
webmail@prestolite.com
ENGLISH
Technical Service
Bulletin
Date:
October 11, 2007
Bulletin No:
TSB-1059
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information please visit our website at www.prestolite.com, or contact our technical service department at:
Leece-Neville Heavy Duty Systems
7585 Empire Drive
Florence, KY 41042
ENGLISH
Page 6
Phone/Fax: (866) 288-9853
webmail@prestolite.com
59
Technical Service
Bulletin
Date:
October 11, 2007
Bulletin No:
TSB-1059
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tools, equipment, and training to perform the required maintenance described above. This information is NOT intended for ‘do-ityourselfers’, and you should not assume that this information applies to your equipment. If you have any questions regarding this
information please visit our website at www.prestolite.com, or contact our technical service department at:
Leece-Neville Heavy Duty Systems
400 Main Street
Arcade, NY 14009
60
Page 7
Phone/Fax: (866) 288-9853
webmail@prestolite.com
ENGLISH
Technical Service
Bulletin
Date:
October 11, 2007
Bulletin No:
TSB-1059
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tools, equipment, and training to perform the required maintenance described above. This information is NOT intended for ‘do-ityourselfers’, and you should not assume that this information applies to your equipment. If you have any questions regarding this
information please visit our website at www.prestolite.com, or contact our technical service department at:
Leece-Neville Heavy Duty Systems
7585 Empire Drive
Florence, KY 41042
ENGLISH
Page 8
Phone/Fax: (866) 288-9853
webmail@prestolite.com
61
Technical Service
Bulletin
Date:
October 11, 2007
Bulletin No:
TSB-1059
7URXEOHVKRRWLQJ5HIHUHQFH
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information please visit our website at www.prestolite.com, or contact our technical service department at:
Leece-Neville Heavy Duty Systems
400 Main Street
Arcade, NY 14009
62
Page 9
Phone/Fax: (866) 288-9853
webmail@prestolite.com
ENGLISH
Technical Service
Bulletin
Date:
October 11, 2007
Bulletin No:
TSB-1059
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information please visit our website at www.prestolite.com, or contact our technical service department at:
Leece-Neville Heavy Duty Systems
7585 Empire Drive
Florence, KY 41042
ENGLISH
Page 10
Phone/Fax: (866) 288-9853
webmail@prestolite.com
63
Technical Service
Bulletin
Date:
October 11, 2007
Bulletin No:
TSB-1059
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information please visit our website at www.prestolite.com, or contact our technical service department at:
Leece-Neville Heavy Duty Systems
400 Main Street
Arcade, NY 14009
64
Page 11
Phone/Fax: (866) 288-9853
webmail@prestolite.com
ENGLISH
Technical Service
Bulletin
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October 11, 2007
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tools, equipment, and training to perform the required maintenance described above. This information is NOT intended for ‘do-ityourselfers’, and you should not assume that this information applies to your equipment. If you have any questions regarding this
information please visit our website at www.prestolite.com, or contact our technical service department at:
Leece-Neville Heavy Duty Systems
7585 Empire Drive
Florence, KY 41042
ENGLISH
Page 12
Phone/Fax: (866) 288-9853
webmail@prestolite.com
65
Technical Service
Bulletin
Date:
October 11, 2007
Bulletin No:
TSB-1059
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information please visit our website at www.prestolite.com, or contact our technical service department at:
Leece-Neville Heavy Duty Systems
400 Main Street
Arcade, NY 14009
66
Page 13
Phone/Fax: (866) 288-9853
webmail@prestolite.com
ENGLISH
Technical Service
Bulletin
Date:
October 11, 2007
Bulletin No:
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Important: The information contained in this bulletin is intended for use by trained, professional technicians who have the proper
tools, equipment, and training to perform the required maintenance described above. This information is NOT intended for ‘do-ityourselfers’, and you should not assume that this information applies to your equipment. If you have any questions regarding this
information please visit our website at www.prestolite.com, or contact our technical service department at:
Leece-Neville Heavy Duty Systems
7585 Empire Drive
Florence, KY 41042
ENGLISH
Page 14
Phone/Fax: (866) 288-9853
webmail@prestolite.com
67
Technical Service
Bulletin
Date:
October 11, 2007
Bulletin No:
TSB-1059
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tools, equipment, and training to perform the required maintenance described above. This information is NOT intended for ‘do-ityourselfers’, and you should not assume that this information applies to your equipment. If you have any questions regarding this
information please visit our website at www.prestolite.com, or contact our technical service department at:
Leece-Neville Heavy Duty Systems
400 Main Street
Arcade, NY 14009
68
Page 15
Phone/Fax: (866) 288-9853
webmail@prestolite.com
ENGLISH
Technical Service
Bulletin
Date:
October 11, 2007
Bulletin No:
TSB-1059
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Important: The information contained in this bulletin is intended for use by trained, professional technicians who have the proper
tools, equipment, and training to perform the required maintenance described above. This information is NOT intended for ‘do-ityourselfers’, and you should not assume that this information applies to your equipment. If you have any questions regarding this
information please visit our website at www.prestolite.com, or contact our technical service department at:
Leece-Neville Heavy Duty Systems
7585 Empire Drive
Florence, KY 41042
ENGLISH
Page 16
Phone/Fax: (866) 288-9853
webmail@prestolite.com
69
Technical Service
Bulletin
Date:
October 11, 2007
Bulletin No:
TSB-1059
7URXEOHVKRRWLQJ5HIHUHQFH
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Important: The information contained in this bulletin is intended for use by trained, professional technicians who have the proper
tools, equipment, and training to perform the required maintenance described above. This information is NOT intended for ‘do-ityourselfers’, and you should not assume that this information applies to your equipment. If you have any questions regarding this
information please visit our website at www.prestolite.com, or contact our technical service department at:
Leece-Neville Heavy Duty Systems
400 Main Street
Arcade, NY 14009
70
Page 17
Phone/Fax: (866) 288-9853
webmail@prestolite.com
ENGLISH
Truck HVAC Advanced Troubleshooting
7.
Inverter Manual
ENGLISH
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ISO 9001:2000
L–2652
Rev. 20090130
Dometic Corporation, Environmental Division
P.O. Box 15299 I Richmond, VA 23227 USA
804-746-1313 I Fax 804-746-7248
www.dometictruck.com I sales@dometictruck.com
COPYRIGHT © 2009 Dometic Corporation, Environmental Division, All Rights Reserved.
No part of this publication may be reproduced, translated, stored in a retrieval system, or
transmitted in any form or by any means electronic, mechanical, photocopying, recording or
otherwise without prior written consent by Dometic Corporation, Environmental Division. Every
precaution has been taken in the preparation of this manual to ensure its accuracy. However,
Dometic Corporation, Environmental Division assumes no responsibility for errors and omissions.
Neither is any liability assumed for damages resulting from the use of this product and information
contained herein.
UNITED STATES & CANADA SERVICE ONLY
Weekdays 8:00 am to 5:00 pm (Eastern Time) 804-746-1313
All other times 888-440-4494
For all other areas visit our website to find your nearest distributor.