Dometic RM2452 Manual

1
Form No. 3106411.006 8/95
The Dometic Corp.
LaGrange, IN 46761
Copyright 1995 The Dometic Corporation
INSTALLATION &
OPERATING INSTRUCTIONS
RECORD THIS INFORMATION FOR FUTURE REFERENCE
BEFORE INSTALLING THE UNIT:
ModelNo._______________ SerialNo.______________________
ProductNo.______________
DatePurchased___________ PlaceofPurchase_______________
INDEX Page
Installation.............................. 2
OperatingInstructions............ 9
Maint.&Service.....................12IMPORTANT INSTRUCTIONS
READ CAREFULLY
FORYOUR SAFETY
If you smell gas:
1.Shut off gas supply at
main valve.
2.Open windows.
3.Don't touch electrical
switches.
4.Extinguish any open
flame.
5.Immediately call your gas
supplier.
FORYOUR SAFETY
Do not store or use gasoline
or other flammable vapors
and liquids in the vicinity of
this or any other appliance.
REFRIGERATOR
MODELS
RM2452, RM2453
RM2552, RM2553
ABSORPTION REFRIGERATORS
FOR LP-GAS AND ELECTRIC OPERATION
MODELS
RM2452RM2552
RM2453RM2553
USA
SERVICEOFFICE
TheDometicCorp.
509So. Poplar St.
LaGrange,IN46761
219-463-4858
CANADA
DometicDist.
866LangsDr.
Cambridge,Ontario
CANADA N3H 2N7
519-653-4390
ForServiceCenter
AssistanceCall:
800-544-4881
! WARNING
Improper installation, adjustment,
alteration, service or maintenance
can cause injury or property dam-
age. Refer to this manual. For
assistance or additional informa-
tion consult a qualified installer,
service agency or the gas supplier.
! AVIS
Cet appareil doit être réparé
seulement par un réparateur
autorisé. Modification de l'appareil
pourrait être extrèmement
dangeruse, et pourrait causer mal
ou mort.

1. GENERAL INSTRUCTIONS
This appliance is designed for storage of foods and
storage of frozen foods and making ice.
The refrigerators outlined herein have been design certi-
fied by A.G.A. under ANSI
Z21 .19 Refrigerator Standard
for installation in a mobile home or recreational vehicle and
are approved by the Canadian Gas Association.
The certifications are, however, contingent on the
installation being made in accordance with the following
instructions as applicable.
In the U.S.A., the installation must conform with:
1. National Fuel Gas Code ANSI 2223.1 -(latest edition)
2. Manufactured Home Construction and Safety Stan-
dard, Title 24 CFR, Part 3280
3. Recreational Vehicles ANSI Al
19.2-(latest edition).
The unit must be electrically grounded in accordance with
the National Electric Code ANSI/NFPA 70-(latest edition)
when installed if an external alternating current electrical
source is utilized.
4. Any applicable local code.
In Canada, the installation must conform with:
1. Current CGA B 149 Gas Installation Codes
2. Current CSA Standard Z 240.4 GAS-EQUIPPED REC-
REATIONAL VEHICLES AND MOBILE HOUSING
3. Any applicable local code
The unit must be electrically grounded in accordance with
the CANADIAN ELECTRICAL CODE C 22 Parts 1 and 2.
2. VENTILATION
The installation shall be made in such a manner as to
separate the combustion system from the living space of
the mobile home or recreational vehicle. Louver openings
for air supply or for venting of combustion products shall
have a minimum dimension of not less than
1/4 inch.
Proper installation requires one fresh air intake and one
upper exhaust vent. The ventilation kits shown in this
instruction manual have been certified for use with the
refrigerator model listed in the Table. For “Certified Vent
System Kits” see Section B. The ventilation kits must be
installed and used without modification. An opening toward
the outside at floor level in the refrigerator compartment
must be provided for ventilation of heavier-than-air fuel
gases. The lower vent of the recommended kits is provided
with proper size openings. The flow of combustion and
ventilation air must not be obstructed.
The lower side vent is fitted with a panel which provides an
adequate access opening for ready serviceability of the
burner and control manifold of the refrigerator. This should
be centered on the back of the refrigerator.
3. CERTIFIED INSTALLATION
Certified installations require one roof vent and one lower
side vent.
For certified vent system kits, see Section B.
For further information, contact your dealer or distributor.
4. METHOD OF INSTALLATION
The method of installation is shown in FIG. 1. It is essential
that all maximum or minimum dimensions are strictly
maintained as the performance of the refrigerator is depen-
dent on adequate flow of air over the rear of the refrigerator.
FIG.

3
5. VENTILATION HEIGHTS
Refer to FIG 1., Page 2
Installationwithroof MinimumVentilation
vent and lower side vent heightsin:
REFRIGERATOR INCHES MM
RM2452,RM2453 37-3/4 960
RM2552,RM2553 44-1/2 1130
LOWER VENT CUTOUT
UPPER VENT CUTOUT
5-1/2"
21-9/16"
13-3/4"
23-3/4"
NOTE: All cutout dimensions are +/– 1/8".
6. CLEARANCES
Minimum clearances in inches to combustible materials
are: G: Top 0"
K: Side 0"
L: Bottom 0"
M: Rear 0"
N: See NOTE
NOTE: Clearance "M" is between the rearmost part of
the refrigerator and the wall behind the refrigerator.
NOTE: Clearance "N" is the distance between the
bottom of the lower vent to the roof material. For
ventilationheight,referto SectionA.Installation,Item5.
Ventilation Heights . See FIGS. 1 & 2.
FIG. 2
FIG. 3
Refrigerator Overall Recess Total
Model Dimensions Dimensions Ref. Vol.
Height Width Depth Height Width Depth
A B C H W D Cu. Ft.
RM2452,2453 36-7/8 24-7/8 24-7/8 36-9/16 23-11/16 24
937 632 632 928 601 608
RM2552,2553 43.0 24-7/8 24-7/8 42-5/8 23-11/16 24
1093 632 632 1082 601 608
(mm)
(In.)
(In.)
(mm)
3.7
4.7

4
7. INSTALLING REFRIGERATOR IN
ENCLOSURE
NOTE:DONOTinstall the appliancedirectlyoncarpeting.
Carpeting must be removed or protected by a metal or
wood panel beneath the appliance, which extends at least
the full width and depth of the appliance.
Any space between the counter, storage area or ceiling
can trap heat produced at the rear of the refrigerator. Any
space between the top and sides of the refrigerator should
be blocked for maximum refrigerator performance.
CONDENSATE WATER DRAIN HOSE: A 3/4" hole must
be drilled through the flooring in the opening of the base
plateontherear of refrigerator(seeFIG.5D).The installer
must make sure that the hose does not kink when run
through the floor. Seal around the hose where it goes
through the hole. If a longer hose is required, follow the
illustration shown below:
OPTION A:
1) Remove black water check valve from hose.
2) Add additional hose
3) Reinstall black water check valve
OPTION B:
1) Cut drain hose at location shown below.
2) Install new drain hose between pieces cut.
NOTE: Black water check valve must be reinstalled to
ensureproperrefrigeratoroperation.DONOTKINKHOSE.
OPTION C:
In vehicles where routing the drain hose through the floor
is not possible, a metal clip is available. The clip is used to
drain water out through the side vent.
Part No. 3106590.007 Clip for plastic side vent (Qty. 50)
Part No. 3106590.015 Clip for plastic side vent (Single)
Part No. 3106559.002 Clip for metal side vent (Qty. 50)
Part No. 3106559.010 Clip for metal side vent (Single)
INSTALLATION: The refrigerator must be installed in a
substantial enclosure and must be level. When installing
therefrigeratorintheenclosure, allareaswithintherecess
in which the refrigerator is installed must be sealed. Make
sure that there is a complete seal between the front frame
of the refrigerator and the top, sides and bottom of the
enclosure. A length of sealing strip is applied to the rear
surface of the front frame for this purpose. Also apply a
sealing strip to the foremost floor of the enclosure and
apply a second sealing strip to the bottom of the trim strip
on the front base as shown in FIG. 4. The sealing should
provide complete isolation of the appliance's combustion
system from the vehicle interior.
A wood strip must be in place across the upper opening of
the enclosure. The top frame of the refrigerator will be
anchored to the wood strip with screws. See FIG. 2.
The dimensions shown in FIG. 3 will give you adequate
space for proper installation.
NOTE: Ifthedoorishingedanditneedsbechangedtothe
opposite side, it must be done before the refrigerator is
installed in the enclosure. See Step. 13.
NOTE: Be careful not to damage the sealing strip applied
to the floor of the enclosure when the refrigerator is put in
place.
Therefrigeratorissecuredintheenclosurewithsixscrews.
They must be installed in the following order:
a. First:Twoscrewsareinstalledinfrontdeco-
ration strip and through the front base.
1) The front strip is to be installed after the refrig-
eratorissetinto the alcove.Thestripis shipped
as a loose part.
2) Install the lower frontstripbyslidingitunderthe
bottom hinge plate as shown in FIG. 5. The
hinge plate can be on the right or left side
depending on the door swing.
FIG. 4
FIG. 5

5
3) Whenthefrontstripisinplace,installonescrew
throughthehingeandintothefloor.Thesecond
screwis installed with a washer on the opposite
side. (See FIG. 5A)
b. Second: Install the two screws in the top
frame.
1) The top decoration panel must be removed
from the refrigerator before the screws can be
installed. Open refrigerator door and gently
pushthetabsoutoftheholeinthehingewithflat
blade screwdriver. See FIG. 5B.
2) Carefully tilt the top decoration panel and lift up
to remove from top frame. See FIG. 5B.
3) Install the second two screws in the top frame
as shown in FIG. 5C.
FIG. 5B
FIG. 5A
4) Replace the top decoration panel. Be careful
not to pinch the wires. Make sure the tabs snap
back into the holes in the hinge plate.
C. Third: Two screws installed as shown in
rear base. See FIG. 5D.
FIG. 5D
Failure to follow the sequence in securing the refrigerator
intheenclosurecancauseleakagebetweentheframeand
cabinet.
Holefor
DrainWater
Hose
FIG. 5C
8. GAS CONNECTION
Hook up to the gas supply line is accomplished at the
manual gas shutoff valve, which is furnished with a 3/8"
SAE (UNF 5/8" – 18) male flare connection. A backup
wrenchmustbeusedwhentighteninggassupplyfitting.All
completedconnections shouldbe checked for leaks witha
noncorrosive leak detector. (See FIG. 6 – Gas tubing may
have a different orientation than shown).
DO NOT USE A FLAME
TO CHECK FOR GAS LEAKS.
The gas supply system must incorporate a pressure
regulator to maintain a supply pressure of not more than
13-1/2 inches water column (static) no load.
When testing the gas supply system at test pressures in
excessof1/2psig,therefrigeratoranditsindividualshutoff
valve must be disconnected from the gas supply piping
system.
PRESSURE
REGULATOR
LP GAS
CYLINDER
TO
REFRIGERATOR

6
9.TESTINGLPGASSAFETYSHUTOFF
Thegas safety shutoff must be tested after the refrigerator
is connected to LP gas supply.
To test the gas safety shutoff, proceed as follows:
REFRIGERATORS WITH PIEZO IGNITOR
(RM2452 & RM2453)
A.Start the refrigerator according to the instructions, and
switchtogasmode.See " SectionC.OperationInstruc-
tions, Item 3. Gas Operation ."
B.Checkthat thegas flameis lit.This can be observed on
flamed indicator (E). (See FIG. 7)
C.Close the gas valve by turning the knob "A" back to
"OFF" position. (See FIG. 7).
Whentestingthegassupplysystematpressureslessthan
or equal to 1/2 psig, the appliance must be isolated from
the gas supply piping by closing its individual manual
shutoff valve.
In case detailed instructions on the installation and con-
nectiontothegassupplyarerequired,contactyourdealer
or distributor.
D.Wait for one minute.
E.Remove burner cover plate. (See FIG. 6A). Open the
gasvalve by turning knob "A" to position "GAS" without
pushing the buttons "C" and "D". (See FIG. 7). Apply
commercialleakcheck bubblesolutionto theburnerjet
F.No bubbles should appear at the opening of the burner
jet. The presence of bubbles indicates a defective gas
safety shutoff, and service is required.
G.If no bubbles were present at the burner jet, the gas
safety valve is working properly. Rinse jet thoroughly
with fresh water before proceeding. Be careful not to
damage burner jet. Replace cover and turn the main
switch OFF and back ON. (See " Section C. Operation
Instructions, Item 2. Control Panel "). Normal operation
of the burner should return. Allow the burner to operate
for a minimum of 5 minutes.
! WARNING
DO NOT use a flame to check for leaks.
FIG. 6 FIG. 6A
FIG. 7

7
FIG. 8
THERMOCOUPLE
SCREW
RETAINER
THERMOCOUPLE
CONNECTIONBURNER
JET
TEST
PORT
CLEAR BLUE COLOR
OF FLAME
FIG. 9
REFRIGERATORS WITH AUTOMATIC REIGNITORS
(RM2552 & RM2553)
A.Start the refrigerator according to the instructions for
Gas Operation with Automatic Reignitor. See Section
B. Operating Instructions, Item 3, Gas Operation .
B.Check that the gas flame is lit by observing flame
indicator (E). (See FIG. 9).
C.Close the gas valve by turning the knob "A" back to the
"OFF" position. (See FIG. 9)
D.Waitoneminute,thendisconnectthe12voltDCpower.
(See FIG. 6 and 6A).
E.Removeburnercoverplate.(SeeFIG.6and6A).Open
the gas valve by turning knob "A" to the "GAS" position
without pushing button "C". (See FIG. 9). The reignitor
should not be sparking. Apply commercial leak-check
bubble solution to the burner jet. (See FIG. 8). Be
careful not to damage burner jet.
F.No bubbles should appear at the opening of the burner
jet. Bubbles indicate a defective gas safety shutoff and
service is required.
G.If no bubbles were present at the burner jet, rinse the
orifice with water. Replace the burner cover plate.
Reconnectthe12voltDCpowersupplytotherefrigera-
tor. See Section A. Installation, Item 11, 12 Volt DC
Connection. Start the refrigerator by following the in-
structions for gas operation with automatic reignitor.
Normal gas operation should now return. Allow the
burner to operate a minimum of five minutes.
! WARNING
DO NOT use a flame to check for leaks.
FIG. 10
10.120 VOLTACCONNECTION
Therefrigeratorisequippedwitha three-prong(grounded)
plug for protection against shock hazards and should be
plugged directly into a properly grounded three-prong
receptacle.DONOTcutofforremovethegroundingprong
from this plug. The free length of the cord is 2 feet and
therefore recommended that the receptacle be located to
the left side of the refrigerator (viewed from the rear) and
approximately 6 inches from the floor. (See FIG. 10). This
allows easy accessibility through the vent door. The cord
should be routed to avoid contacting the burner cover, flue
cover, or any other components that could damage the
cord insulation.

8
11.12VOLT DC CONNECTION
2-WAY REFRIGERATOR MODELS
On 2-way refrigerator model RM2552, DC must be con-
nected to the refrigerator to provide power for operation of
the automatic reignitor. On this unit there is one terminal
blockmarked12volts, located ontheback of therefrigera-
tor cabinet. (See FIG. 6A).
Reignitor Circuit Maximum Fuse / Minimum Wire Size
3 amps / 14 AWG
3-WAY REFRIGERATOR MODELS
WITH AUTOMATIC REIGNITOR
On 3-way refrigerator models with automatic reignitors,
therearetwoterminalblocksforDC.TheDCterminalblock
on the back of the refrigerator cabinet is for the reignitor;
andthe DC terminalblock located under a plastic cover on
thebackoftherefrigeratorisfortherefrigeratorheater.See
FIG. 6A.
Therefrigeratormustbeconnectedbyaseparatecircuit
to the battery with two wires of adequate capacity to avoid
voltage drop when the DC heater is being operated. The
wire gauge should be chosen with consideration to the
length;refertotheTablebelowforwiresize.TheDCcircuit
must be fused; refer to the Table for fuse size.
MAXIMUM TOTAL CONDUCTOR WIRE LENGTH
(In Feet and Meters)
AWGRM2453 RM2553
149FT. 7FT.
2.7m 2.1m
1215FT. 12FT.
4.6m 3.6m
1025FT. 19FT.
7.6m 5.8m
840FT. 31FT.
12.2m 9.5m
Max. 15amps 20amps
Fuse
Size
NOTE: The refrigerator Model RM2452 does not have an
automatic reignitor. The 3-way model has only one 12 volt
DC terminal block located on the back of the refrigerator.
DO NOT use the body or chassis of the vehicle as a
substitute for either of the two conductors. DO NOT
connect any other electrical equipment or lighting to
the refrigerator circuit.
PANEL DIMENSIONS
MAX. THICKNESS 5/32" (4 mm)
Refr. Models HEIGHT WIDTH
TYPE MAX. MIN. MAX. MIN.
RM2452/2453
upper mm32-11/16 32-5/8 20-11/16 20-9/16
inch 831828526522
RM2552/2553
upper mm38-7/8 38-3/4 20-11/16 20-9/16
inch 987984526522
! CAUTION
DO NOT operate the refrigerator on 12 volt DC when
thevehicleisparked.Theamperagedrawofthe12volt
DC heating element can discharge a battery in a very
short time. The installation of a 12 volt DC operated
refrigerator requires a relay to be installed on the tow
vehicle or in the caravan. The relay will automatically
shut off the 12 volt DC power to the refrigerator when
the ignition is turned off. (See FIG. 11).
FIG. 11
12.CHANGING DOOR SWINGTO
OPPOSITE SIDE
The refrigerator is equipped with convertible doors. To
change the door swing, consult the parts manual for the
ConversionKitPartNumber.Forfurtherinformation,please
contact the Dometic Corporation listed on the front page.
13.INSTRUCTION FOR INSTALLING
DOOR PANEL
The refrigerator is normally delivered without the door
panels. Before starting the mounting work, check that the
paneldimensionsareincompliancewiththosegiveninthe
Tableonthispageandtheinstructionsarereadthoroughly.
When mounting the panel, proceed as follows. (See FIG.
12)
A.Remove the trim strip from the bottom/top of door by

9
FIG. 12
taking out the 3 screws. See FIG. 8.
B. Pullout the 2 pins in the end frame of the door.
See FIG. 8.
C. Slidepanelintogroovesonverticaledgesofthe
dooruntilitslipsintothegrooveontheopposite
end of door.
D. Replace pins removed in Step B.
E. Replace trim strip and screws.
SECTION B. CERTIFIEDVENT SYSTEM KITS
REFRIGERATOR KIT
MODEL NO. COMPONENTS PART NO.
RM2452 OPTION #1 ROOF BASE 3103633.XXX *
RM2453 ROOF COVER 3103634.XXX *
RM2552 LOWER SIDE VENT 3102277.XXX *
RM2553 OPTION #2 UPPER SIDE VENT 8302113XX
LOWER SIDE VENT 3102277.XXX
OPTION #3-B POWER VENT ASM. 3104131.002 **
UPPER SIDE VENT 8302113XX
LOWER SIDE VENT 3102277.XXX
* Fill in "XXX" with color code numbers. For color codes, contact your supplier.
** Alternate instructions forwarded with the Ventilator Kit.

10
SECTION C. OPERATING INSTRUCTIONS
REFRIGERATORS WITH
AUTOMATIC IGNITION:
RM2552 AND RM2553
2. CONTROLS
Most LP gas appliances used in recreational vehicles are vented to the outside of the vehicle. When parked
close to a gasoline pump, it is possible that the gasoline fumes could enter this type of appliance and ignite
from the burner flame, CAUSING A FIRE OR AN EXPLOSION.
In an absorption refrigerator system, ammonia is liquefied
in the finned condenser coil at the top of the refrigerator.
The liquid ammonia then flows into the evaporator (inside
the freezer section) and is exposed to a circulating flow of
hydrogen gas, which causes the ammonia to evaporate,
creating a cold condition in the freezer.
The tubing in the evaporator section is specifically sloped
to provide a continuous movement of liquid ammonia
downwardbygravitythroughthissection.Iftherefrigerator
isoperatedwhenitisnotlevelandthevehicleisnotmoving,
liquidammonia will accumulate in sectionsof the evapora-
tor tubing. This will slow the circulation of hydrogen and
ammonia gas, or in severe cases, completely block it,
resulting in a loss of cooling.
Any time the vehicle is parked for several hours with the
refrigerator operating, the vehicle should be leveled to
preventthislossofcooling.Thevehicleneedstobeleveled
only so it is comfortable to live in (no noticeable sloping of
floors or walls).
Whenthevehicleismoving,thelevelingisnotcriticalasthe
rolling and pitching motion of the vehicle will pass to either
side of level, keeping the liquid ammonia from accumulat-
ing in the evaporator tubing.
1. IMPORTANCE OF LEVELING A REFRIGERATOR
LEGEND:
A Energy Selector Knob
B Thermostat Knob
C Flame Failure Safety
Valve Push Button
D Piezo Ignitor
E Flame Indicator
FIG. 14
REFRIGERATORS WITH
PIEZO IGNITORS:
RM2452 AND RM2453
FIG. 13

11
3. GAS OPERATION
A. REFRIGERATORS WITH PIEZO IGNITOR
(RM2452 & RM2453)
1. To start the refrigerator, turn knob "A" to the "GAS"
position. (See FIG. 13).
2. Turn the thermostat knob "B" one-quarter (1/4) of a
turn from the "OFF" position. (See FIG. 13)
3. Push button "C", push button "D" for the piezo
ignitor several times to light the burner. This can be
observed on the flame indicator "E", on the refrig-
erator. (See FIG. 13).
4. After theflame lights, continueto hold button "C" for
an additional ten (10) seconds. Release the button
"C" and check the flame indicator "E" to make sure
the burner does not go out. If the burner goes out,
repeat the lighting procedure Steps A through D.
5. To shut off the refrigerator, turn knob "A" to the
"OFF" position.
A. REFRIGERATORSWITHAUTOMATICREIGNITORS
(RM2552 AND RM2553)
1. To start the refrigerator, turn knob "A" to the "GAS"
position. (See FIG. 14)
2. Turn the thermostat knob "B" one-quarter (1/4) of a
turn from the "OFF" position. (See FIG. 14).
3. Push button "C" in until it bottoms out – and hold.
When flame indicator "E" shows the flame is on,
hold push button "C" an additional 15 seconds.
Release button "C". If the flame indicator "E" starts
tomove toward off,repeat Steps Athrough C. (See
FIG. 14). Should flame blow out, the reignitor will
automatically relight the flame.
NOTE: After changing an LP tank, or after a long shut-
off period, the gas line is likely to be filled with air. You
may have to repeat the lighting procedure several
times to purge the air out of the gas lines.
4. ELECTRIC OPERATION
A. Check to be sure the power cord is properly connected
to the power supply. (See FIG. 10). If the refrigerator is
equipped for 12 volt DC operation, the tow vehicle or
caravan engine should be running to prevent discharg-
ing the battery.
B. Turn knob "A" to the position marked "ELEC" for 120
volt AC operation or "12V" for 12 volt DC operation.
(See FIGS. 13 & 14).
C. Turnthethermostatknob"B"one-quarter(1/4)ofaturn
from the "OFF" position.
D. To shut off the refrigerator, turn knob "A" to the "OFF"
position.
5.THERMOSTAT
The refrigerator is equipped with a thermostat that can be
adjusted by turning knob "B" to a different setting to
maintain the desired cabinet temperature. (See FIGS. 13
& 14).
A. "OFF" Setting of the Thermostat: In gas operation,
the thermostat closes its main valve and the burner
runs continuously at the bypass rate or pilot. In
electrical operation, the contacts in the thermostat
are open and the heating elements are off.
B. "MAX" Setting of the Thermostat: In gas operation,
the thermostat allows the burner to remain on high
flame continuously. In electric operation, the heating
element is "ON" continuously.
C. The thermostat can be adjusted between "MAX" and
"OFF" to obtain the desired cabinet temperature. The
closer the knob is to "MAX", the colder the cabinet
temperature. The closer the knob is to "OFF", the
warmer the cabinet temperature.
When the thermostat reaches the set temperature, it will
cutthe burner backto bypassor, inelectric operation, shut
off the heating element.
The setting of the thermostat is not critical, but we recom-
mend it be adjusted to maintain a dry frost on the cooling
fins. Adjust the thermostat knob closer to "MAX" when the
outside temperature becomes warm.
4. HOWTO USETHE REFRIGERATOR
A. FOOD STORAGE COMPARTMENT
The food storage compartment is completely closed and
unventilated, which is necessary to maintain the required
low temperature for food storage. Consequently, foods
having a strong odor or those that absorb odors easily
should be covered. Vegetables, salads, etc. should be
covered to retain their crispness. The coldest positions in
therefrigeratorareunderthecoolingfinsandatthebottom
oftherefrigerator.Thewarmerareasareontheupperdoor
shelves. This should be considered when placing different
types of food in the refrigerator.
B. FROZEN FOOD STORAGE
COMPARTMENT
Quick frozen soft fruits and ice cream should be placed in
the coldest part of the compartment which is at the bottom
of the aluminum liner. In models with a shelf, place these
foodsonorjustbelowthefreezershelf.Frozenvegetables,
may be stored in any part of the compartment.
This compartment is not designed for deep or quick freez-
ing of food. Meat or fish, whether raw or prepared, can be
stored in the frozen food storage compartment provided
they are precooled first in the refrigerator. They can be
storedaboutthreetimeslongerinthefrozenfoodcompart-
ment as compared to the fresh food compartment. To
prevent food from drying out, keep it in covered dishes,
containers, plastic bags or wrapped in aluminum foil.

12
(Section D. Maintenance & Service, continued on next
page . . . )
with a clean cloth. Replace all food and set thermostat to
the COLDEST temperature setting for a few hours. Then
reset the thermostat to the desired setting, usually at mid-
setting.
NOTE:Onthesemodelsthedriptray/cupisontherearside
of the refrigerator. (See FIG. 6)
Puttheplasticdraintubeinawatertightbucketorcontainer
(access through louvered service panel on the outside of
the vehicle). As the frost melts, the water will flow into the
container.Whenallthefrosthasmeltedwipeuptheexcess
moistureandemptytheaccumulatedwaterfromthebucket.
Replace the drain tube to its original position.
E. CLEANING
Cleaningtherefrigeratorisusuallydoneafteritisdefrosted
or put into storage. To clean the interior liner of the
refrigerator, use lukewarm weak soda solution. Use only
warm water to clean the finned evaporator, gasket, ice
trays and shelves. NEVER use strong chemicals or
abrasives to clean these parts as the protective sur-
faces will be damaged. It is important to always keep
the refrigerator clean.
F.SHUT-OFF (STORAGE PROCEDURE)
Toshutofftherefrigerator,turnknob"A"to"OFF"position.
If the refrigerator will not be in operation for a period of
weeks, it should be emptied, defrosted, cleaned and the
doors left ajar. The ice tray should also be dried and kept
outside the cabinet.
Most LP-Gas appliances used in recreational vehicles
are vented to the outside of the vehicle. When parked
close to a gasoline pump, it is possible that gasoline
fumes could enter this type of appliance and ignite the
burner flame CAUSING A FIRE OR AN EXPLOSION.
FOR YOUR SAFETY, it is recommended that all LP-
Gas appliances which are vented to the outside shut
off when refueling.
C. ICE MAKING
Icecubescanbemadeintheicetrayplacedinthefreezer
compartment.Thetrayshouldbefilledwithwatertowithin
1/4" (5mm) from the top. For faster ice making, the tray
should be placed in direct contact with the freezer shelf.
To release the ice cubes, seize the tray with both hands
andtwistthetray. Cubesnotrequiredshouldbereplaced
in the tray. Refill the tray with water and replace the tray
on the freezer shelf.
Ice making is accelerated if the thermostat knob "B" is
turned to the "MAX" setting. It is a good idea to do this a
few hours before the anticipated need for ice, but be sure
to move the thermostat back to normal setting, usually
about mid-setting when the ice is formed. Food in the
lower compartment may be frozen if the setting is left on
"MAX" position.
D. DEFROSTING
Shut off the refrigerator by turning knob "A" to "OFF"
position.Emptytherefrigerator,leavingthedriptrayunder
the finned evaporator. Leave the cabinet and freezer
doors open. Defrosting time can be reduced by filling the
ice tray with hot water and placing it on the freezer shelf.
When all the frost has melted, empty the drip tray and dry
the interior of the refrigerator with a clean cloth. Replace
the drip tray and ice tray. Replace all the food and set the
thermostat to its normal position.
DO NOT use a hot air blower. Permanent damage
could result from warping the metal or plastic parts.
DONOTuseaknifeoranicepick,orothersharptools
toremovefrostfromthefreezershelf.Theycancreate
a leak in the ammonia system.
When all frost is melted, dry the interior of the refrigerator

13
SECTION D.MAINTENANCE AND SERVICE
1.PERIODIC MAINTENANCE
To keep your Dometic refrigerator operating efficiently
and safely, periodic inspection and cleaning of several
components is recommended once or twice a year.
A.It is important to keep the area at the back of the
refrigerator clear. Check the lower vent, upper vent
and the area between these openings for any ob-
structions such as bird/insect nests, spider webs,
etc. It is important to keep the refrigerator area free
from combustible material, gasoline and other flam-
mable liquids or vapors.
NOTE: The following maintenance is required once or
twice a year, but should only be done by a qualified
serviceman who is familiar with LP gas systems and
refrigerators.
B.Check all connections in the LP gas system (at the
back of the refrigerator) for gas leaks. The LP gas
supplymustbeturnedon.Applyanoncorrosivebubble
solution to all LP gas connections. The appearance of
bubblesindicatesaleakandshouldberepairedimme-
diately by a QUALIFIED SERVICEMAN WHO IS
FAMILIAR WITH LP GAS SYSTEMS AND REFRIG-
ERATORS.
The user should be aware of service that must be done on a regular schedule to keep the refrigerator operating
properly. The service should only be performed by a qualified technician who is familiar with LP gas systems and
refrigerators.
Tips for the ServiceTechnician
B.Check all connections in the LP gas system (at the
back of the refrigerator) for gas leaks. The LP gas
supply must be turned on. Apply a noncorrosive
bubble solution to all LP gas connections.
DO NOT USE A FLAME TO CHECK FOR GAS LEAKS.
C. Checkburnerflameforproperappearance.Theflame
shouldbelightbluewithnoyellowatthetip.(SeeFIG.
15)
D. CHECK GAS PRESSURE
The LP gas pressure should be checked and readjusted if
necessary.Thecorrectoperatingpressureiseleveninches
of water column. The correct place to take the pressure
readingisatthetestportjustaheadofthemainorifice.(See
FIG. 15)
E.CLEANING FLUE TUBE, BURNER & BURNER JET
NOTE: Before working on the refrigerator, make sure
that 120 volt AC and optional 12 volt DC leads are discon-
nected. Shut off Gas valve.
THE BURNER AND BURNER JET:
The color of the flame should be clear blue of the slots of
the burner (FIG. 15).
Onceortwiceayear,dependinguponuse,cleanandadjust
the burner assembly. Proceed as follows:
1.Remove protection plate from the burner housing.
2.Disconnect the wire from the high voltage electrode.
3.Remove the burner mounting screws and remove the
burner assembly.
4.Clean the burner tube with a brush. Blow with com-
pressed air.
5.Removetheburnerjet.Soakthejetinwoodalcoholand
blow it out with compressed air. NEVER use a wire pin
to clean the burner jet.
! CAUTION
DO NOT use a wire or pin when cleaning the burner jet
as damage can occur to the precision opening. This
can cause damage to the refrigerator or create a fire
hazard.
6.Removethefluecapfromtopoffluetubeandliftoutthe
wireand spiral baffle.Clean the flue from the top, using
a flue brush. Replace spiral baffle and flue cap.
7.Remove all loose scale, soot, etc. from area below the
flue pipe. (See FIG.15).
8.Reassemble.
9.Be careful that the end of the burner fits into the slot on
the bracket. The slots of the burner must be centrally
located under the flue tube.
FIG. 15
THERMOCOUPLE
SCREW
RETAINER
THERMOCOUPLE
CONNECTIONBURNER
JET
TEST
PORT
CLEAR BLUE COLOR
OF FLAME

14
10.The gas fittings on the refrigerator need to be
checked for leaks. Turn on the gas supply at the
shut-offvalve.Applyanoncorrosivebubblesolution
tothefittingandobserve forleaks.Thesafetyvalve
will not allow gas pressure to any connections
betweenitandtheburnerjet.Thesefittingsmustbe
checked before burner is lighted.
! WARNING
Thesafety shut-off must be manually depressedto
allowgaspressuretoflowtotheburnerjet.Besure
to apply the leak check solution before depressing
the safety shut-off. DO NOT allow any open flame,
sparks, smoking, etc., in the area of the test. DO
NOT depress safety shut-off for over 30 seconds.
11.Allow10minutesfortheLPgastoleavetheburner
area. Reconnect the 12 volt DC power. Light the
burnerper Section.C,OperatingInstructions,Item
3, Gas Operation . Allow burner to run 5 minutes.
12.Connect the power cord to the 120 volt AC wall
outlet.
F.Check LP gas safety shut-off. See Section A,
Installation, Item 9, Testing LP Gas Shut-Off .
G. THE ELECTRODE
For a proper ignition function it is necessary to keep the
electrode insulation dry and free from dirt. The gap be-
tween burner tube and electrode shall be a maximum of
3/16" (5mm) and a minimum of 1/8" (3mm). (See FIG. 16).
ELECTRODE
BURNER TUBE
1/8" TO 3/16"
(3-5 mm)
NOTE:Avoidsprayingwaterthroughtherefrigerator's
vents while washing your RV.
FIG. 16
2.TROUBLESHOOTING
THE REFRIGERATOR DOES NOT
COOL PROPERLY
A.Burnerjetclogged.Removetheburnerjet.Soakthejet
inwoodalcoholandblowitoutwithcompressedair.Do
not use a wire or pin to clean the burner jet.
B.Refrigerator is not level.
C.Flame has gone out.
Remedy: 1) Gas bottle is empty - refill. 2) The tip of
theflamefailuresafetydeviceisnotheatedenoughby
flame. 3) Clogged bypass screw - clean or exchange
it.
D.Venting problem.
Restriction in air flow across cooling unit.
E.Heavy frost buildup on evaporator fins.
Defrost.
F.Flue baffle not inserted properly in flue tube.
G.Improperly set thermostat.
See paragraph on thermostat. In hot weather the
setting should be closer to the "MAX" than usual.
H.Burner dirty.
Clean.
I.Burner damaged.
Replace.
J.LP gas pressure low at burner.
Setmainregulatorsothepressuredoesnotdropbelow
11 inches water column at pressure tap.
K.Burner not located properly under flue tube.
Relocate.
ODOR FROM FUMES
Causes and Remedies:
A.The flame touches side of boiler due to dislocation of
the burner. Relocate. Burner dislocation may also
cause smoke and discoloring of walls and ceiling.
B.Burner damaged. Replace.
C.The flue tube is dirty. Clean flue as follows:
Cover burner and burner jet. Remove the flue cap
from the top of the flue tube and lift out the wire and
spiral baffle. Clean the flue from the top using a flue
brush. Clean the spiral baffle. Replace the spiral
baffle and flue cap.
Alltheinstructionsaretobefollowedclosely.Therefrigera-
torisquality-guaranteed.However,wearenotresponsible
for any failures caused by improper adjustments and
unfavorable installation conditions.
CONTACT AN AUTHORIZED SERVICE CENTER
FOR PARTS AND REPAIRS AS NEEDED.