Service Manual
Model 3163
Contents
Important Safety Information . . . . . . . . . . 1
No Spark at Burner . . . . . . . . . . . . 12-13
Burner Ignites But Flame Will Not Hold . . 14-15
Trouble Shooting - Ventilation Fan . . . . 16-17
Diagnosing Cooling Problems . . . . . . . . . 18
Specifications . . . . . . . . . . . . . . . . . . 2
General Information . . . . . . . . . . . . . . 2
Direct Vent Requirements . . . . . . . . . . . 2
Propane System . . . . . . . . . . . . . . . . 4
Description of Controls . . . . . . . . . . . . . 5
Lighting and Start-Up Instructions . . . . . . . 6
Refrigerator Removal & Re-Installation
Procedure (EuroVan Camper) . . . . . . . . 19
Refrigerator Removal & Re-Installation
Procedure (Rialta) . . . . . . . . . . . . . . . 20
Limited Warranty Time Allowance Chart . . . . 7
Refrigerator Will Not Operate on AC . . . . . 8-9
Refrigerator Will Not Operate on DC . . . 10-11
Part No.: 617898A (94-11)
Wiring Pictorial & Diagram . . . . . . . . . . 21
Parts List & Exploded Views . . . . . . . 22-27
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Specifications
Operating Limits
Ratings
AC Mode: 132 volts AC max. - 108 volts AC min.
DC Mode: 15.4 volts DC max. - 11.5 volts DC min.
Gas Mode: 11" W.C. max. - 10.5" W.C. min.
15.4 VDC max. - 10.5 VDC min.
LP Gas Mode: 640 BTU/Hr. Input
11" W.C. Gas Supply
.010" Orifice (LP10)
AC Mode: 110 volts AC - 140 watts
DC Mode: 12 volts DC - 140 watts
Current Draws
Fuse Replacement Data
AC Heating Element - 1.3 amp @ 110 volts AC
1.4 amps @ 120 volts AC
DC Heating Element - 11.7 amps @ 12 volts DC
13.6 amps @ 14 volts DC
Ignition Relighter - 150 milliamps during ignition
100 milliamps steady state
Ventilation Fan - 240 milliamps
AC Circuit: 3 amp Type 3AG (1/4" x 1/4")
Norcold Part No.: 61654622
DC Circuit: 20 amp Type 3AG (1/4" x 1/4")
Norcold Part No.: 61440522
Gas Circuit: 1 amp Type 3AG (1/4" x 1/4")
Norcold Part No.: 618079
General Information
The propane gas mode of operation is that of a sealed
combustion unit. A sealed combustion installation util-
izes a single fresh vent-air intake/exhaust assembly to
supply fresh air to the burner and to remove the prod-
ucts of combustion. This insures the products of com-
bustion are isolated from the living area of the vehicle.
The vent-air intake/exhaust assembly is routed through
the vehicle’s outside wall and is connected to the
refrigerator’s burner assembly and exhaust flue tube by
flexible piping. The vent-air intake/exhaust assembly
used for this installation has been certified for this
WARNING
This refrigerator is not intended to be operated as a
Free-Standing refrigerator (i.e. the products of combus-
tion must be completely isolated from the living area)
or installed in such a way as to conflict with these
installation instructions. Unapproved installations could
result in safety risks or performance problems.
The model 3163 is designed for built-in installation and
operates on propane gas, 120 volts AC, or 12 volts DC.
must not
refrigerator and
be modified.
Direct Vent Requirements
thermostat is calibrated to activate the fan whenever
the vehicle’s interior temperature reaches 85 degrees
or higher.
When leaving the vehicle unattended, it is advisable
to leave windows or roof exhaust vents open to main-
tain the vehicle’s interior temperature below 85 de-
grees. This will allow the refrigerator to operate
efficiently, minimize fan operation, and limit current
draw from the battery.
Interior Ventilation
The refrigerator’s cooling system requires a continual
air flow to maintain proper refrigeration. An inlet and
exhaust vent is required to insure adequate air flow.
The refrigerator is equipped with an inlet vent located
at the bottom front of the refrigerator. The installer is
required to provide the exhaust vent. The exhaust vent
must have a cross sectional area of 30 square inches
minimum. The exhaust vent is to be installed above the
top surface of the refrigerator so as not to trap hot air
generated by the cooling unit. The refrigerator is
equipped with a DC ventilation fan to assist the air flow
across the refrigerator’s cooling system while operating
the refrigerator in the Gas mode.
Installing the Vent-Air Intake/Exhaust Assy
WARNING
Improper location and installation can cause injury or
property damage. This refrigerator and it’s vents are
design certified by the American Gas Association and
the Canadian Gas Association. Any deviation or sub-
Ventilation Fan
A thermostat controlled mechanical fan is used to
move air across the refrigerator’s cooling system. The
2
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stitution will void the agencies’ certifications and the
Norcold warranty. Refer to this manual for proper in-
structions. Install the refrigerator and vents as directed
by Norcold without modification.
Intake Pipe
max. length
16"
The clearance from the refrigerator’s left side (facing
the front of the refrigerator) to the vehicle’s exterior wall
is important. This is the area in which the inlet and outlet
flexible piping will be connected to the vent terminal
housing during installation.
maximum clearances from refrigerator cabinet to vehi-
cle exterior wall.
Exhaust Pipe
max. length
14"
Refer to Figures 3 and 4 for
The wall thickness the vent terminal housing will
accommodate is .030" minimum to 1.250" maximum.
Figure 2 illustrates the configuration of the opening for
Do not make the opening in
the vent terminal housing.
the vehicle wall larger than required.
The clearance
should be enough for the terminal housing to pass
through the opening. If the opening is too large, the
outer gasket will not cover the vent housing opening.
Figure 3 - Kit #617941 Flexible Piping & Vent Location
Intake Pipe
max. length
21 3/4"
Figure 2 - Air Intake/Exhaust Assembly
Exhaust Pipe
max. length
19 3/4"
1. Mounting Screw
2. Vent Cover
3. Outer Disk
8. O Rings
9. Intake Piping
10. Exhaust Piping
11. Locking Washer Screw
12. Locking Washer
13. Vehicle Exterior Wall
14. Mounting Screw
15. Mounting Screw
4. Inner Disk
5. Rubber Gasket
6. Vent Terminal
Housing Cut-Out
7. Vent Terminal
Housing
It is imperative that the wall opening for the vent
terminal housing not be too low. The flexible piping
(inlet and outlet pipes) must rise from the refrigerator to
the terminal housing. There are two specific vent-air
intake assembly kits available to accommodate most
Figures 3 and 4 illustrate two installations
installations.
with the maximum flexible piping lengths and the vent
terminal housing locations.
Figure 4 - Kit #617943 Flexible Piping & Vent Location
3
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power cord to the receptacle. Place the "O" rings onto
the ends of both flexible pipes. Bend the flexible pipes
so they clear the top of the enclosure. Connect the
piping as follows:
Insulating the Flexible Exhaust Piping
The flexible exhaust pipe must be insulated prior to
installation into the vent terminal housing. The flexible
exhaust pipe connects to the flue tube of the refrigera-
tor’s cooling unit and routes to the bottom opening of
the vent terminal housing. Use the non-combustible
insulation material supplied with the vent-air intake/ex-
Exhaust Pipe - This pipe is insulated and connects to
the flue tube of the cooling unit. Route
and connect to the bottom opening of
the vent terminal housing.
Do not insulate the Air Intake pipe.
haust kit.
not
Intake Pipe - This pipe is
insulated and connects to
Installing Refrigerator into the Enclosure
the burner cover. Route and connect to the
top opening of the vent terminal housing.
Set the refrigerator into the enclosure and slide it back
enough to connect the gas supply piping to the manual
shut-off valve located at the top of the refrigerator.
Connect the 12 volt DC supply to the terminal block also
located at the top of the refrigerator. Connect the AC
Secure both flexible pipes to vent terminal housing
with locking washer and screw. Slide refrigerator com-
pletely into enclosure.
Propane System
Testing of the Vehicle’s Gas Supply Piping
Burner Flame
Air Inlet Grille
When installation is complete, the propane gas
supply piping must be inspected and tested for leaks
from the refrigerator to the main gas supply tank. Use
Do not test for leaks with an
a leak detection solution.
open flame.
If compressed air is used for leak testing, the pressure
must not exceed 1/2 psig (14 inches water column).
The appliance and its individual shutoff valve must be
disconnected from the gas supply piping system during
any pressure testing of that system at test pressure in
excess of 1/2 psig (14 inches water column).
The appliance must be isolated from the gas supply
piping system by closing its manual shutoff valve during
any pressure testing of the gas supply piping system at
test pressure less than or equal to 1/2 psig (14 inches
water column).
Check the gas pressure to the refrigerator without
other gas appliances operating. The pressure should
not exceed 11 inches water column. With other appli-
ances operating the pressure should not be less than
10.5 inches water column.
Figure 5
As illustrated in Figure 6, the flame should be sharp
blue with a stable burning appearance. If there is a
constant yellow component observed or if the flame
appears erratic and unstable, perform the following
inspection. Check the gas supply pressure to insure the
pressure is between 10.5" W.C. min. - 11" W.C. max..
Inspect the Air Intake pipe between the burner and the
vent terminal housing for obstructions. If the gas supply
pressure is within specifications, and the Air Intake pipe
is clear of obstructions, clean the burner, orifice, and
cooling unit’s flue tube. Also observe the position of the
flame; it must be centered under the flue tube without
touching the inner wall of the tube.
Gas Burner Flame
The gas operation of the refrigerator is controlled by
the correct burner flame which supplies the heat input
to the refrigerator’s cooling system. The correct burner
flame is dependent upon correct input gas pressure
and the burner and burner orifice being clean. The
propane gas piping and the supply pressure must be
inspected and tested at least twice a year. All inspec-
tions and tests must be performed by the propane gas
supplier or a qualified service agency.
A visual check of the burner flame should be made
regularly. The burner flame can be observed through
the air inlet grille as shown in Figure 5.
Figure 6
4
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flame safety device will automatically close (an
audible click will be heard as this device closes).
4. Turn the gas on at the manual shut-off valve.
5. Attempt to light the burner by placing the mode
Check Out of Flame Failure Safety Device
1. To verify operation of the flame failure safety
device, start the refrigerator in the gas mode
(refer to lighting instructions on page 6) and verify
the presence of a flame.
2. Turn off the gas at the manual shut-off valve or
at the main gas supply tank.
3. The flame will go out and within 3 minutes the
Do not push in
selection button to the gas mode.
the safety valve.
6. Without holding the safety valve in, the burner
flame will not re-light. This indicates the flame
failure safety device is functioning.
Description of Controls
B
C
E
G
A
D
F
Figure 7
The refrigerator’s operating controls are located on top of the refrigerator. The control panel is
located on the top front surface directly above the refrigerator door.
(A) Safety Valve
(D) 12 Volts DC Operation
The safety valve is designed so that any loss of
flame will stop the gas flow to the burner. It is con-
trolled by means of a thermocouple that is positioned
in the flame. As long as a flame is detected by the
thermocouple, the valve will remain open. Upon
flame failure, the valve closes, shutting off the gas
flow to the burner. During the gas ignition process,
the safety valve button must be held in until a flame
is established at the burner.
Pressing button (D) selects the DC mode of operation.
When DC is selected and DC is available to the refrig-
erator, the refrigerator will operate at full cooling power.
The DC operation is a continuous run (no thermostat
control) mode.
(E) Gas Operation
Pressing button (E) selects the Gas mode of opera-
tion. The refrigerator is equipped with electronic igni-
tion. When the gas mode is selected, the electronic
ignition is energized and sparking is generated at the
burner (Note: Push safety valve button in and hold
until flame is present at burner). Sparking will con-
tinue until a flame is present at the burner. When a
flame is sensed by the electronic ignition module, the
sparking ceases and the flame indicator (G) illumi-
nates indicating the refrigerator is operating on gas.
(B) Thermostat
The thermostat on the Norcold refrigerator controls
thereby elimi-
both the gas and AC electric operations,
nating the necessity of resetting each time a different
power source is selected
. Rotate the thermostat knob
clockwise to make the refrigerator cabinet colder.
(C) 120 Volts AC Operation
(F) Off
Pressing button (C) selects the AC mode of operation.
When the AC mode is selected and AC voltage is
supplied to the refrigerator, the refrigerator will operate
on 120 volts AC.
Pressing button (F) willinterrupt all powersources and
cease operation of the refrigerator.
5
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Lighting and Start-Up Instructions
B
C
E
G
A
D
F
Figure 8
The Lighting and Start-Up Instructions are located on
the top portion of the interior door liner.
3. Push and hold the safety valve button (A) until
the indicator lamp (G) glows steady. Continue
to hold the safety valve button in for 15 seconds
and then release. The indicator lamp should
remain a steady glow. If the lamp turns off,
repeat this step.
Refer to Figure 8 for location of the operating controls.
Notice: When warm humid weather conditions are ob-
served, operate the refrigerator on either AC or
DC electric for a minimum of five (5) minutes
before attempting to follow the Start-Up Instruc-
tions for Gas operation.
Notice: On initial start-up, it may take longer for
the burner to light because of air being
purged from the gas supply line.
AC Operation
1. Press mode selection button (C).
2. Set the thermostat (B) to the coldest (maximum)
setting. Allow to operate at maximum setting for
6 to 8 hours before setting to mid range.
WARNING
Do not hold gas valve in more than 30 seconds. If the
flame is not indicated within this time, press selector
switch (F), wait 2 minutes, and retry. Continuing to hold
the gas valve in will cause gas to build up in the burner
area and can result in an explosion which can cause
property damage or severe personal injury.
DC Operation
1. Press mode selection button (D). There is no
need to set thermostat to any setting. The DC
operation is a continuous run (no thermostat
control) mode.
1. Set thermostat to desired temperature setting.
Gas Operation
Shut-Down: All Modes
1. Set thermostat (B) to the start setting.
2. Press mode selector button (E). Ignition spark
will be present at the burner.
Press mode selector button (F). This will interrupt all AC
and DC power and stop operation of the refrigerator.
6
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Norcold Limited Warranty Time Allowance Chart
Rialta
To gain access to the operating controls of the refrig-
erator, remove the drawer directly above the refrigera-
tor. The interrupter can be replaced without removing
the refrigerator.
EuroVan
Time
Rialta
Time
Replacement Part
Allowance Allowance
EuroVan
(Hours)
1.5
1.4
1.4
1.3
1.3
.3
(Hours)
1.5
1.4
1.4
1.3
1.3
.3
To gain access to the operating controls of the refrig-
erator, remove the control panel assembly located
directly above the refrigerator.
Burner
Burner Tube
Electrode Assembly
Heater - AC
Heater Wires
To gain access to the AC and DC heater wires,
remove the system cover located on the front left side
of the refrigerator.
Heater - DC
Flame Indicator Lamp
Interrupter
1.3
1.3
1.3
.4
.5
Time Allowance
Mode Selector Switch
Orifice
1.3
1.3
.4
Norcold will pay the time allowance multiplied by the
service facility prevailing shop labor rate.
Relighter
Note: The time allowances which follow include
diagnostic times, defective part replace-
ment, refrigerator removal and reinstallation
(when applicable), and gas leak test times.
Safety Valve
Thermocouple
Thermostat
1.5
1.5
1.6
1.5
1.5
1.6
A gas leak test is required when gas connections,
either the main supply line to the refrigerator or the
refrigerator gas components, have been disconnected.
Note: In the event of a cooling unit failure, the
complete refrigerator will be replaced. The
time allotted to remove and replace the
defective refrigerator will be 1 hr..
Thermostat By-Pass
Screw
.3
.3
7
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Wiring Pictorial & Diagram
8
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Important Safety Information - AC Circuit
Read this information before attempting to perform service on this refrigerator. Understand the service procedures before
performing the service.
Always apply the safety precautions on page 1 and the precautions listed below. Failure
to follow these safety precautions can result in substantial property damage, severe
personal injury, or death.
WARNING
•
Use caution when performing the AC diagnostic procedures. Disconnect the AC electrical power source to the
refrigerator before replacing any AC electrical component.
•
•
Do not remove or cut the round grounding prong from the refrigerator’s AC power cord. Do not use a two-prong adapter.
Replace blown fuses with a fuse specified by Norcold. Refer to "Specifications" section of this manual, or the fuse size
printed adjacent to the fuse on the refrigerator.
•
Keep liquids away from AC electrical connections. Liquids are electrically conductive and could cause fires.
9
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Refrigerator Will Not Operate on AC
Is circuit breaker
Is refrigerator’s
AC cord
connected to
receptacle?
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
NO
Is selector
switch in the
AC position?
Is thermostat
set at mid-range
or higher?
Are there
loose wire
or fuse blown?
(AC source to
refrigerator)
connections?
NO
NO
YES
NO
YES
Set selector
switch to AC
and start
Set thermostat
to mid-range or
higher and start
refrigerator.
Reset circuit
breaker/replace
fuse & start
Connect AC
cord into
receptacle &
start refrigerator.
Repair
loose wire
connections.
refrigerator.
refrigerator.
YES
YES
Is AC voltage
at output of
selector switch?
Is AC voltage
at input of
selector switch?
Is AC voltage
to output
of fuse?
Is AC voltage
at input
of fuse?
Is AC voltage
at terminal
block?
NO
NO
NO
NO
NO
Replace
selector switch
and start
Correct AC
source to
selector switch.
Replace 3 amp
fuse and start
refrigerator.
Correct AC
source to
fuse.
Correct power
source to
terminal block.
refrigerator.
Is AC voltage
at input of
heater?
(Black wires)
Is AC voltage
at input of
thermostat?
Is AC voltage
at output of
thermostat?
Replace
AC Heater.
NO
NO
NO
Correct AC
source to input
of thermostat.
Replace
thermostat and
start refrigerator.
Correct AC
source to
heater.
Specifications
AC Voltage: 108 - 132 VAC
Current Draw: 1.3 - 1.4 amps
Heater Resistance: 81.7 - 90.3 ohms
10
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Important Safety Information - DC Circuit
Read this information before attempting to perform service on this refrigerator. Understand the service procedures before
performing the service.
Always apply the safety precautions on page 1 and the precautions listed below. Failure
to follow these safety precautions can result in substantial property damage, severe
personal injury, or death.
WARNING
•
•
Use caution when performing the DC diagnostic procedures. Disconnect the DC electrical power source to the
refrigerator before replacing any DC electrical component.
Replace blown fuses with a fuse specified by Norcold. Refer to "Specifications" section of this manual, or the fuse size
printed adjacent to the fuse on the refrigerator.
•
•
Connect the positive battery lead to the refrigerator first to prevent short circuits.
Use caution when connecting or disconnecting the DC supply to the refrigerator. DC supply is close to the propane gas
supply to the refrigerator. Arcing can occur and ignite a leak in the propane gas supply piping.
11
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Refrigerator Will Not Operate on DC Electric
Is circuit breaker
tripped or fuse
blown? (DC
YES
YES
NO
NO
YES
Is selector
switch set
to DC?
Are there
loose wire
connections?
Is 12 VDC to
input of 20
amp fuse?
Is 12 VDC at
terminal block?
to refrigerator)
NO
YES
YES
NO
NO
Set selector
switch to DC
and start
Reset circuit
breaker/replace
fuse & start
Repair loose
connections
and start
Correct DC to
terminal block &
start refrigerator
11.5 VDC min..
Correct DC
source to fuse.
refrigerator.
refrigerator.
refrigerator.
YES
YES
YES
Is 12 VDC at
output of
selector switch?
Is 12 VDC at
input of
selector switch?
Replace
DC heater.
Is 12 VDC at
output of fuse?
NO
NO
NO
Replace
selector switch
& start
Correct DC
source
to switch.
Replace 20
amp fuse.
refrigerator.
Specifications
DC Voltage: 11.5 - 15.4 VDC
Current Draw: 11.7 - 13.6 amps
Heater Resistance: .95 - 1.05 ohms
12
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Important Safety Information - Gas Circuit
Read this information before attempting to perform service on this refrigerator. Understand the service procedures before
performing the service.
Always apply the safety precautions on page 1 and the precautions listed below. Failure
to follow these safety precautions can result in substantial property damage, severe
personal injury, or death.
WARNING
•
•
•
Propane gas can cause an explosion. Use caution when working with or near a propane gas system. Do not smoke,
create sparks, or use an open flame to check gas supply lines or gas connections.
To prevent gas leaks and damage to the gas supply lines and fittings, use two wrenches when connecting or
disconnecting gas fittings (See Figure 1 on page 1).
Use caution when performing the gas diagnostic procedures. Disconnect both the AC and DC electrical sources to the
refrigerator before replacing any gas component.
•
•
Connect the positive battery lead to the refrigerator first to prevent short circuits.
Replace blown fuses with a fuse specified by Norcold. Refer to "Specifications" section of this manual, or the fuse size
printed adjacent to fuse on the refrigerator.
•
•
Use caution when connecting or disconnecting the DC supply to the refrigerator. DC supply is close to the propane gas
supply to the refrigerator. Arcing can occur and could ignite a leak in the propane gas supply piping.
Keep liquids away from electrical connections. Liquids are electrically conductive and could cause a fire.
13
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No Spark at Burner
Is circuit breaker
YES
YES
YES
YES
NO
YES
YES
YES
Is selector
switch set
to Gas?
Is 12 VDC
present at
Is 12 VDC at
input of 20
AMP fuse?
Is 12 VDC at
input of 1
Is thermostat
set to start?
tripped or fuse
blown? (DC
to refrigerator)
terminal block?
amp fuse?
NO
NO
YES
NO
NO
NO
Set selector
switch to Gas
and start
Reset breaker
or replace fuse
and start
Set thermostat
to start and
light refrigerator.
Correct DC
source and
start refrigerator.
Correct DC
source to 20
amp fuse.
Correct DC
source to 1
amp fuse.
refrigerator.
refrigerator.
Install short
jumper wire from
relighter to within
1/8" of ground
YES
YES
YES
Remove spark
electrode wire
from relighter.
Is 12 VDC at
T1(+) & T3(-)
of relighter?
Is 12 VDC at
output of
selector switch?
Is 12 VDC
at input of
selector switch?
Is 12 VDC
at output of
1 amp fuse?
NO
NO
NO
NO
Replace
selector switch
and start
Correct DC
to switch
and start
refrigerator.
Establish DC
supply to
relighter.
Replace 1 amp
fuse and start
refrigerator.
refrigerator.
Is electrode
positioned 1/8"
max. above
burner?
YES
Check electrode
continuity -
Is relighter
sparking?
must read
∞.
NO
NO
NO
Adjust electrode
to 1/16" min. -
1/8" max.
Replace
electrode
assembly
Replace
relighter.
above burner.
Specifications
Gas Pressure: 10.5" W.C. - 11" W.C.
DC Voltage: 10.5 - 15.4 VDC
Note: If the negative DC supply connection is lost, the flame indicator light will remain on all the time, even without
the flame present.
14
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: If flame is burning but
the flame indicator
lamp is not illumi-
nated, check for 2
Volts DC from the re-
lighter to the lamp. If 2
Volts DC is present,
replace flame indica-
tor lamp. If 2 Volts DC
is not present, replace
the relighter.
Note
Figure 9
Figure 10
15
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Burner Ignites But Flame Will Not Hold
Is the DC volt-
age at terminal
block between
10.5 - 15.4 VDC?
Is vent terminal
YES
YES
YES
YES
YES
Is refrigerator’s
manual shut-off
valve on?
Is gas supply
pressure at
10.5" - 11" W.C.?
Set thermostat
to maximum
setting.
Is the main
gas supply on?
housing free
from
obstructions?
NO
NO
NO
NO
NO
Turn manual
shut-off valve
on.
Clear vent
terminal of
obstruction.
Adjust main
gas pressure
to 11" W.C..
Correct DC
voltage input.
Turn main
gas supply on.
Remove white
wires and jump
interrupter
Are white wires
from relighter
to interrupter
Is interrupter
connection at
safety valve
tight?
Is thermocouple
connection at
the interrupter
tight?
Is tip of the
thermocouple in
flame and clean
of carbon?
Is gas pressure
at pressure tap
tee between
YES
YES
YES
YES
YES
terminals.
secure & tight?
10.5 - 11" W.C.?
NO
NO
NO
NO
NO
YES
NO
Reposition
or clean
thermocouple.
Does flame
hold?
Secure wire
connections.
Tighten
connection.
Tighten
connection.
Replace
thermostat.
Replace
relighter.
Remove jumper and reconnect white wires.
Check for voltage at terminals of interrupter.
(Refer to Figure 10 for correct method of measuring milli-volts)
16-30 milli-volts
10-15 milli-volts
on one terminal,
on both
16-30 milli-volts
on both
terminals.
0 milli-volts on
both terminals.
0 milli-volts on
terminals.
the other.
Replace
thermocouple.
Replace
safety valve.
Replace
interrupter.
Replace
safety valve.
Note: If the negative DC supply connection is lost, the flame indicator light will remain on all the time, even without
the flame present.
16
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Important Safety Information - DC Fan Circuit
Read this information before attempting to perform service on this refrigerator. Understand the service procedures before
performing the service.
Always apply the safety precautions on page 1 and the precautions listed below. Failure
to follow these safety precautions can result in substantial property damage, severe
personal injury, or death.
WARNING
•
•
•
Propane gas can cause an explosion. Use caution when working with or near a propane gas system. Do not smoke,
create sparks, or use an open flame to check gas supply lines or gas connections.
To prevent gas leaks and damage to the gas supply lines and fittings, use two wrenches when connecting or
disconnecting gas fittings (See Figure 1 on page 1).
Use caution when performing the gas diagnostic procedures. Disconnect both the AC and DC electrical sources to the
refrigerator before replacing any gas component.
•
•
Connect the positive battery lead to the refrigerator first to prevent short circuits.
Replace blown fuses with a fuse specified by Norcold. Refer to "Specifications" section of this manual, or the fuse size
printed adjacent to fuse on the refrigerator.
•
•
Use caution when connecting or disconnecting the DC supply to the refrigerator. DC supply is close to the propane gas
supply to the refrigerator. Arcing can occur and could ignite a leak in the propane gas supply piping.
Keep liquids away from electrical connections. Liquids are electrically conductive and could cause a fire.
17
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Trouble Shooting - Ventilation Fan
Is 12 VDC
present at
input of 1
amp fuse?
Is 12 VDC
present at
output of 1
amp fuse?
Is 12 VDC
present at
input of mode
selection switch?
YES
YES
YES
YES
YES
YES
Is the mode
selection in the
Gas position?
NO
NO
NO
NO
Set mode
selection switch
to gas.
Correct 12 VDC
source to mode
selection switch.
Correct 12 VDC
source to fuse.
Replace 1
amp fuse.
Disconnect red
wire from mode
selection switch
to thermostat.
Is 12 VDC
present at
output of mode
selection switch?
YES
Disconnect red
wire from fan
to thermostat.
Is 12 VDC
present at
fan thermostat?
NO
NO
Correct 12 VDC
source to fan
thermostat.
Replace mode
selection switch.
Connect the
two wires
together.
Does fan
operate?
Replace
thermostat.
NO
Replace
fan.
Specifications
18
DC Voltage: 12 VDC
Current Draw: .240 milliamps
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Diagnosing Cooling Problems
Read this information before attempting to perform
service on this refrigerator. Understand the service
procedures before performing the service.
See pictorial and trouble shooting guide on
pages 17 & 18.
4. An off-level situation, if the infraction is marginal,
will allow the refrigerator to continue to operate
at a reduced level of cooling until the refrigerator
is leveled. Greateroff-level situations will stop the
refrigerant circulation and cease cooling. Normal
vehicle leveling to provide comfort for the occu-
pants is within the refrigerator’s operating limits.
The refrigerator’s operating limits are 3 degrees
off-level front-to-back and 6 degrees off-level
side-to-side. Operating the refrigerator outside of
these operating limits for an extended time will
cause irreparable damage to the cooling unit.
5. Check the input voltages and gas pressure to
insure correct heat input and voltage limits.
The specifications are as follows:
WARNING
Always apply the safety precautions on page 1 and the
precautions listed below. Failure to follow these safety
precautions can result in substantial property damage,
severe personal injury, or death.
•
Never bend, drop, drill, weld, or hammer the
cooling unit. Doing so can cause the cooling unit
to rupture, releasing chemicals under high pres-
sure. Contact with these chemicals may cause
severe burns to the eyes or skin.
a. 120 VAC - 108 VAC min. to 132 VAC max.
b. 12 VDC - 11.5 VDC min. to 15.4 VDC max.
c. Gas - 10.5" W.C. min. to 11" W.C.
•
Never attempt to repair or recharge the cooling
unit. A defective cooling unit must be replaced.
Correct input voltages and propane gas supply
are critical for the cooling unit to function properly.
6. Check the area of the cooling unit for refrigerant
leaks. The smell of ammonia is a positive sign of
Diagnostic Procedures
1. Make sure the cooling problem occurs while op-
erating the refrigerator in each mode of opera-
tion. If not, the cooling problem is not the cooling
unit. Refer to Trouble Shooting sections to deter-
mine cause for insufficient cooling on identified
mode of operation.
2. Make sure the interior venting is not obstructed
and is providing air circulation across the cooling
unit’s absorber coils and condenser fins.
When an ammonia smell is
a refrigerant leak.
detected, the cooling unit must be replaced.
An-
other sign of a refrigerant leak is the appearance
of a yellow powder in the vicinity of the cooling
When this powder is observed, the cooling
unit must be replaced.
unit.
7. Check the absorber coils; the bottom coil will be
If the coils
warm and the top coil will be cooler.
are cold and the cooling units flue enclosure is
too hot to touch, there is a blockage in the cooling
unit and the cooling unit must be replaced.
3. Make sure the 12 VDC ventilation fan is func-
tional. The fan will operate whenever the vehi-
°
cle’s interior temperature reaches 85 or higher.
19
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Refrigerator Removal Procedures
Valve Shown in
Off Position
WARNING
U-Tube to
Thermostat
Improper removal and installation of the refrigerator
can cause injury or property damage. Before attempt-
ing the procedures below, review the "Important Safety
Information" on page 1 and the procedures below.
EuroVan Camper
1. Turn off the gas supply at the main tank.
2. Turn the refrigerator’s mode selector to "OFF".
3. Remove the vehicle’s middle bench seat.
4. Remove the refrigerator’s system cover located
on the left front of the refrigerator by removing 5
retaining screws.
LP Gas
Supply Line
Figure 12 - Manual Shut-Off Valve
5. Remove 5 retaining screws securing refrigerator
to enclosure.
9. Remove both the positive and negative leads
from the vehicle’s battery.
10. Disconnect the vehicle’s 12 volt DC supply wires
from the refrigerator’s terminal block.
6. Remove the monitor panel located directly above
the refrigerator by removing 6 retaining screws.
CAUTION It is not necessary to disconnect
:
wiring from the monitor panel. Pull
panel forward and away from the
monitor panel’s mounting bracket.
Lay monitor panel on galley top.
Take care not to scratch the galley
and its surrounding surfaces, or
the face of the control panel.
11. Disconnect the LP gas supply line from the refrig-
erator’s manual shut-off valve. See Figure 12.
CAUTION To prevent gas leaks or damage to
:
the gas supply lines and fittings,
use two wrenches when connect-
ing or disconnecting gas fittings.
12. Remove the three (3) screws securing the vent
cover to the vehicle’s exterior surface. See
Figure 11.
13. Remove the two (2) screws securing the inner
disk to the vent terminal housing. See Figure 11.
14. Carefully push the vent terminal housing inward
until free from the vehicle’s wall.
7. Remove the monitor panel’s mounting (frame)
bracket by removing four retaining screws. The
retaining screws are located on both the left and
right sides of the bracket.
15. Carefully pull the refrigerator forward to gain
access to the refrigerator’s AC power cord. Dis-
connect the refrigerator’s AC power cord from the
wall receptacle.
16. Remove the refrigerator from it’s enclosure.
17. To re-install the refrigerator, reverse the removal
procedure.
18. After connecting the vehicle’s gas supply line to
the refrigerator’s manual shut-off valve, turn the
valve on. Use a manometer and verify that the
input gas pressure is at 11" W.C..
19. Turn off the gas supply at the manual shut-off
valve. Observe the manometer and verifythat the
gas pressure is maintained. If not, locate the
source of the leak, correct it, and re-test the unit.
20. Apply leak test solution to all gas fittings and
Figure 11 - Vent Terminal Housing
Do not test for gas
verify that there are no leaks.
leaks with an open flame.
8. Turn the manual shut-off valve located on top of
the refrigerator to "OFF". See Figure 12.
20
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11. Remove the phillips head screw and retaining
washer which secure the vent-air exhaust and
intake flexible vent piping to the vent terminal
housing. See Figure 13.
Rialta
1. Turn off the gas supply at the main tank.
2. Turn the refrigerator’s mode selector to "OFF".
3. Remove the refrigerator’s system cover located
on the left front of the refrigerator by removing 5
retaining screws.
12. Remove both the intake and exhaust vent piping
Care must be
from the vent terminal housing.
taken not to damage the "O" ring seals when
removing the piping.
4. Remove 5 retaining screws securing the refrig-
erator to the enclosure.
5. Remove the drawer directly above the refrigerator.
6. Turn the manual shut-off valve located on top of
the refrigerator to "OFF". See Figure 12.
7. Disconnect the vehicle’s 12 volt DC supply wires
from the refrigerator’s terminal block.
13. Remove right dinette assembly cover panel to
access the refrigerator retaining bracket. Refer-
ence "Right Dinette Assembly Cover Panel Re-
moval" in the Interior Section.
14. Loosen and remove the refrigerator’s retaining
screws at rear base of the refrigerator.
15. Position the flexible vent-air intake and exhaust
pipingto remove the refrigerator from its enclosure.
16. To re-install the refrigerator, reverse the removal
procedure.
17. After connecting the vehicle’s gas supply line to
the refrigerator’s manual shut-off valve, turn the
valve on. Use a manometer and verify that the
input gas pressure is at 11" W.C..
8. Disconnect the LP gas supply line from the refrig-
erator’s manual shut-off valve. See Figure 12.
CAUTION Toprevent gas leaks and damage to
:
the gas supply lines and fittings,
use two wrenches when connect-
ing or disconnecting gas fittings.
9. Disconnect the refrigerator’s AC power cord from
the wall receptacle.
10. Open the cabinet door to the left of the refrigera-
tor. Remove the access panel at the rear of the
cabinet. This will allow access to the refrigerator’s
vent-air intake and exhaust piping.
18. Turn off the gas supply at the manual shut-off
valve. Observe the manometer and verifythat the
gas pressure is maintained. If not, locate the
source of the leak, correct it, and re-test the unit.
19. Apply leak test solution to all gas fittings and
Do not test for gas
verify that there are no leaks.
leaks with an open flame.
Intake Pipe
Retaining
Washer
Exhaust Pipe
(Isolated)
Figure 13 - Vent Terminal Housing
21
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Vent Kit Assembly - 3163
No.
Part No.
Description
1
2
617980
617773
61761122
61633330
617923
617924
617922
617921
617920
617985
618007
618428
618429
618008
618030
618022
618023
O-Ring
Washer
3
Screw #8 - 15 x 1/2" S.S.
Screw #8 - 32 x 5/16"
Vent Terminal Housing
Vent Terminal Gasket
Back Plate
Exhaust Disk
Vent Cover
Air Inlet Tube (EuroVan)
Air Inlet Tube (Rialta)
Air Exhaust Tube (EuroVan)
Air Exhaust Tube (Rialta)
Clamp 1.125
4
5
6
7
8
9
10
11
12
13
14
Clamp 1.000
Insulation 14"
Insulation 19"
22
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Final Assembly - 3163
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Final Assembly - 3163
No.
Part No.
Description
1
617916
618014
618013
617989
618073
618403
618404
618093
618021
617961
617960
61562622
61562522
617998
61583322
618079
61440522
61654622
61584222
617918
61705422
617979
617993
617964
617971
617947
61749622
61728722
61721122
617977
617937
618067
617908
618032
618063
618047
618046
617911
617912
617910
618064
617914
618000
617915
617999
617420
617906
61550722
61645522
611114600
617905
617904
617909
617946
Information Packet
Wire Conduit
2
3
Wire Conduit
4
Burner Tube
DC Fan
Fan Support
5
6
7
Fan Support Bracket
Thermostat (Fan)
Control Cover Assembly
Flue Baffle Wire
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
Flue Baffle
DC Heater (Yellow Leads)
AC Heater (Black Leads)
Control Assembly
Fuse Cover
1 Amp Fuse
20 Amp Fuse
3 Amp Fuse
Fuse Holder
AC Power Cord
End Splice
Terminal Block
Cabinet Assembly (w/Cooling Unit)
Relighter
Gas Valve/Thermostat Knob
Mounting Angle (Right)
Fin Screws
Fin Clip
Fins
Burner Box Cover Gasket
Burner Box Assembly
Burner Box Heat Shield
Lower Support Panel
Grille
Wire Shelf (White)
Chain (Travel Latch)
Pin (Travel Latch)
Hinge
Breaker
Hinge
Wire Door Rail
Taupe Door Assembly (w/Gasket & Door Rail)
Taupe Foamed Door (wo/Gasket & Door Rail)
Gray Door Assembly (w/Gasket & Door Rail)
Gray Foamed Door (wo/Gasket & Door Rail)
Hinge Bushing
43
44
45
46
47
48
Door Gasket
Hinge Pin
Spacer
Hinge Pin
System Cover (Gray)
System Cover (Taupe)
Mounting Bracket (Left Front)
Mounting Angle (Left)
49
50
24
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Control Cover Assembly - 3163
No.
Part No.
Description
1
2
3
4
5
617913
617945
618040
61609022
617981
Control Cover
Mode Selection Switch
Terminal Connector
Indicator Lamp
Hole Plug
25
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Control Assembly - 3163
No.
Part No.
Description
1
2
3
61445322
61594422
617965
Plug
Fitting
Safety Valve
4
61750522
617976
61749822
617952
61694622
61546822
617944
Interrupter
5
Manual Shut-Off Valve
Gas Valve Mounting Bracket
Thermostat Control Mounting Bracket
U-Tube
6
7
8
9
Fitting
Thermostat Control
10
26
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Burner Box Assembly - 3163
No.
Part No.
Description
1
2
617995
617933
617927
617936
61753137
617983
617997
617966
617996
617925
Sight Glass
Sight Glass Grommet
Burner Support Bracket
Burner Assembly
3
4
5
Orifice Adapter Assembly
Thermocouple
Thermocouple Grommet
Spark Electrode
Burner Grommet
Burner Box Bottom
6
7
8
9
10
27
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