Dometic MO-M 0833 User Manual

WARNING

INSTALLATION

RM2351
RM2354
RM2451
RM2454
RM2551

If you smell gas:

1. Open windows.

2. Don’t touch electrical switches.

3. Extinguish any open fl ame.

4. Immediately call your gas supplier.

Do not store or use gasoline or other
fl ammable vapors and liquids in the
vicinity of this or any other appliance.

RM2554
DM2652
DM2662
DM2663
DM2852

FOR YOUR SAFETY

FOR YOUR SAFETY

DM2862
DM3862
NDM1062
NDR1292

&

OPERATING

INSTRUCTIONS

POUR VOTRE SÉCURITÉ

Si vous sentez une odeur de gaz:

1. Ouvrez les fenêtres.

2. Ne touchez à aucun interrupteur.

3. Éteignez toute fl amme nue.

4. Avertissez immédiatement votre
fournisseur de gaz.

POUR VOTRE SÉCURITÉ

Ne pas entreposer ni utiliser de l’essence
ni d’autres vapeurs ou liquides infl amma-
bles à proximité de cet appareil ou de tout
autre appareil.

WARNING

!

Improper installation, adjustment, altera­tion, service or maintenance can cause
injury or property damage. Refer to this
manual. For assistance or additional infor­mation consult a qualifi ed installer, serv-
ice agency or the gas supplier.

USA Corporate Offi ce CANADA

Service Offi ce 2320 Industrial Parkway Elkhart, IN 46515 Dometic, LLC
Dometic, LLC 48 Zatonski, Unit 3
2320 Industrial Pkwy. Brantford, ON N3T 5L8

Elkhart, IN 46516 For Service Center Assistance CANADA

Phone: [phone] Call: 800-544-4881 Phone: [phone]

825129301
(French 825129351)

©2006-2008 Dometic, LLC
LaGrange, IN 46761

AVERTISSEMENT

!

Une installation, un réglage, une modifi -
cation, une réparation ou un entretien non
conforme aux normes peut entraîner des
blessures ou des dommages matériels.
Lisez attentivement le mode d’emploi
fourni avec l’appareil. Pour obtenir de
l’aide ou des renseignements supplémen­taires, consultez un installateur ou un
service d’entretien qualifi é ou le fournis-
seur de gaz.

MO-M 0833

CAUTION

WARNING

CAUTION

INTRODUCTION

Thank you for entrusting us to supply your new quality-guaranteed refrigerator. It is to be used as a recreational device designed
for storage of foods, frozen foods and making ice. Please, when the refrigerator is not in use as a recreational device, turn the
system off and open the door(s).

This manual describes how to install, operate and care for the following refrigerator models: RM2351, RM2354, RM2451,
RM2454, RM2551, RM2554, DM2652/DM2652 (with optional fan), DM2662, DM2663, DM2852/DM2852 (with optional fan),
DM2862/DM2862 (with optional fan), DM3862, NDM1062/NDM1062 (with ice maker) and NDR1292.

The installation is to be performed by qualifi ed personnel only and must conform to all relevant local authorities. Please read this
manual thoroughly before installing the refrigerator. To ensure safe and effi cient operation, the refrigerator must be installed as
described. Be aware of possible safety hazards when seeing alert symbols on the refrigerator as well as in this manual.

The manual should be kept and stay with the refrigerator if it is ever moved or change owners. Read it carefully to ensure that you
know how to operate the refrigerator safely and correctly.

CONTENTS

INSTALLATION INSTRUCTIONS ___________ 3

CERTIFICATION AND CODE REQUIREMENTS . . . . . . . 3

VENTILATION REQUIREMENTS . . . . . . . . . . . . . . . . . . . 3

INSTALLATION PROCEDURE . . . . . . . . . . . . . . . . . . . . . 6

DOOR MOUNTING INSTRUCTIONS . . . . . . . . . . . . . . 10

REFRIGERATOR REMOVAL . . . . . . . . . . . . . . . . . . . . . 11

OPERATING INSTRUCTIONS ____________ 12

REFRIGERATOR OVERVIEW . . . . . . . . . . . . . . . . . . . . . 12

INSTRUCTIONS FOR USE . . . . . . . . . . . . . . . . . . . . . . 15

STORAGE COMPARTMENTS . . . . . . . . . . . . . . . . . . . . 17

PRODUCT CARE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

MAINTENANCE & SERVICE . . . . . . . . . . . . . . . . . . . . . 21

TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . 23

APPENDIX A - SPARE PARTS . . . . . . . . . . . . . . . . . . . . 24

APPENDIX B - CONSUMER SUPPORT . . . . . . . . . . . . 26

APPENDIX C - DOMETIC WARRANTY &

MAINTENANCE SCHEDULE . . . . . . . . . . . . . . . . . . . . .27

APPENDIX D - REARVIEW EQUIPMENT . . . . . . . . . . . 30

APPENDIX E - WIRING DIAGRAMS . . . . . . . . . . . . . . . 33

SYMBOLS

The following symbols are used throughout the manual:

Indicates a potentially hazardous situation, which, if not avoided, could result

WARNING

!

in death or serious injury.

Indicates a potentially hazardous situation, which, if not avoided, may result in

CAUTION

!

minor or moderate injury.

Used without the safety alert symbol indicates, a potentially hazardous situation which, if not avoided

CAUTION

may result in property damage.

Information

Step-by-step instructions

- 2 -

INSTALLATION INSTRUCTIONS

CERTIFICATION AND CODE REQUIREMENTS

This appliance is certifi ed under the latest edition of ANSI Z21.19•CSA 1.4 Refrigerators using gas fuel. The installation
must conform with local codes, or in absence of local codes, the following standards as applicable.

In the U.S. the installation must conform with:

National Fuel Gas Code, ANSI Z223.1/NFPA 54 •
(latest edition).

Recreational Vehicles Code, ANSI A119.2 (latest edition).•

Manufactured Home Construction and Safety Standard, Title •
24 CFR, Part 3280.

If an external electrical source is utilized, the refrigerator, when
installed, must be electrically grounded in accordance with
local codes or, in the absence of local codes, the National Elec­trical Code, ANSI/NFPA 70 - (latest edition).

In CANADA, the installation must conform with:

Natural Gas and Propane Installation Code, CSA B149.1•

CSA Z240 RV Series, Recreational Vehicles.•

Current CSA Z240.4, Gas-equipped Recreational Vehicles •
and Mobile Housing.

If an external electrical source is utilized, the refrigerator,
when installed, must be electrically grounded in accordance
with local codes or, in the absence of local codes, the Canadian
Electrical Code, CSA C22.1, Parts I and II - (latest edition).

VENTILATION REQUIREMENTS

GENERAL INFORMATION

Ventilation is one of the requirements for proper cooling unit
operation. The installation should be made in such a manner as
to separate the combustion system from the living space of the
mobile home or recreational vehicle. Openings for air supply
or for venting of combustion products should have a minimum
dimension of not less than 1/4 inch.

Proper installation requires one lower fresh air intake and
one upper exhaust vent. Certifi ed installations require one
roof vent and one lower side vent. The ventilation kits shown
in this manual have been certifi ed for use with the different
models as displayed in the “Certifi ed Vent System Kits” table.

The ventilation kits must be installed and used without
modifi cation! An opening toward the outside at fl oor level
in the refrigerator compartment has to be provided for
ventilation of heavier-than-air fuel gases. The lower vent
of the recommended kits is provided with proper size
openings. The fl ow of combustion and ventilating air must
not be obstructed.

CAUTION

It is of especially importance that the airfl ow
around the burner housing, the boiler insula­tion and the fl ow of combustion gases must not
be obstructed. Items placed in the vicinity of the
refrigerator compartment accordingly must be
secured away from the refrigerator tubing and
fl ue.

The lower side vent is fi tted 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.

Certifi ed Vent System Kits

Model

RM2351
RM2354

RM2451
RM2454
RM2551
RM2554

DM2652
DM2662
DM2663
DM2852
DM2862
DM3862
NDM1062

NDR1292 5A Roof Base

* Replace “XXX” with the color code numbers. For color codes,

contact your supplier.

** Alternate instructions forwarded with the Ventilator Kit.

For further information, contact your dealer or distributor.

- 3 -

Kit

Components Part no.

No.

2A3ARoof Base

Roof Cover
Lower Side Vent
Lower Side Vent

Upper Side Vent
Lower Side Vent

Power Vent Ass’y
Upper Side Vent
Upper Side Vent
Lower Side Vent
Lower Side Vent

3A Roof Base

Roof Cover
Lower Side Vent

4A Roof Base

Roof Cover
Lower Side Vent

Roof Cover
Lower Side Vent
Power Vent Ass’y

3103633.XXX* or 3310893.XXX*

3103634.XXX* or 3310894.XXX*

3109350.XXX*
RM183

RM123A
RM183

3108705.751**
RM123A

3109492.003
RM183

3109492.003

3103633.XXX* or 3310893.XXX*

3103634.XXX* or 3310894.XXX*

3109350.XXX*

3103633.XXX* or 3310893.XXX*

3103634.XXX* or 3310894.XXX*

3109350.XXX*

3103633.XXX* or 3310893.XXX*

3103634.XXX* or 3310894.XXX*

3103649.XXX*

3108705.744**

VENTILATION REQUIREMENTS

VENTILATION HEIGHTS

It is essential that all maximum or minimum dimensions
are strictly maintained, as the performance of the refrigerator
is dependent on adequate fl ow of air over the rear of
the refrigerator.

Minimum ventilation heights

Roof vent and
lower side vent

inches mm inches mm

RM2351
RM2354

RM2451
RM2454

RM2551
RM2554

DM2652
DM2662
DM2663

DM2852
DM2862
DM3862
NDM1062

NDR1292 65 1651

31 787 34 864

37-3/4 960

44-1/2 1130

57-3/4 1465

63-3/4 1620

Upper and lower

A

side vent

B

CLEARANCES

Minimum clearances (in inches) to combustible materials:

Top (G) 0
Side (K) 0
Bottom (L) 0

1

Rear (M

1

The distance between the rearmost part of the refrigerator and the wall
behind it.

) 0 / 1 (RM2351 & RM2354)

G

KK

L

A

Minimum
ventilation
height

B

Minimum
ventilation
height

Condenser

Condenser

The upper vent
should be centered
over the condenser
coil at the back of
the refrigerator.

Air channel

M

M

SIDE VIEW WITH DUCT SYSTEM

DM2852, DM2862, DM3862 & NDM1062

For installation instructions of the Air Channel, please refer to

INSTALLATION OF AIR CHANNEL”, Rev. 825129100 or later.

“

- 4 -

VENTILATION REQUIREMENTS

OVERALL AND RECESS DIMENSIONS

Dimensions

Model

RM2351
RM2354

RM2451
RM2454

RM2551
RM2554

DM2652
DM2662
DM2663

DM2852
DM2862
DM3862

NDM1062

inches

inches

inches

inches

inches

inches

mm

mm

mm

mm

mm

mm

Overall Recess

Height A Width B Depth C Height H Width W Depth D

30-5/32 21-7/8 22-22/32 29-3/4 20-1/2 21-3/8

766 556 577 756 521 542

37-3/8 24-7/8 24-11/16 39-9/16 23-11/16 24

948 632 627 928 602 610

43-1/2 24-7/8 24-11/16 42-5/8 23-11/16 24

1104 632 627 1083 602 610

54-21/32 24-7/8 26-1/32 53-3/4 23-11/16 24

1388 632 661 1365 602 610

60-51/64 24-7/8 26-1/32 59-15/16 23-11/16 24

1544 632 661 1522 602 610

60-54/64 24-7/8 26-5/8 59-15/16 23-11/16 24*

1544 632 676 1522 602 610*

NDR1292

inches

mm

* Add 1" (25 mm) depth for units with one or two optional ventilator fans.

59-31/32 33-11/16 26-21/32 59-1/16 32-3/4 24*

1523 855 677 1500 832 610*

Side view

$

(

!

View from above

#

$

"

7

General view. Features may vary according to model.

- 5 -

7OODSTRIP

INSTALLATION PROCEDURE

INSTALLING THE REFRIGERATOR

Be careful when installing the refrigerator models

NDM1062 & NDR1292. These are equipped with the

latest vacuum insulated panel technology. The insu­lating panels are located on the top, back, bottom,
sides and doors. If the surface is punctured, loss of
insulation will occur, resulting in poor refrigerator
performance.

For a proper installation, follow these instructions:

Make sure the fl oor is solid and level. •

The refrigerator must be level and installed in a substantial •
enclosure.

Do not install the appliance directly on carpeting. Carpet-•
ing must be removed or protected by a metal or wood panel
beneath the appliance, which extends at least full width and
depth of the appliance.

RM2451, RM2454, RM2551, RM2554, DM2652, •
DM2662, DM2663, DM2852, DM2862, DM3862,
NDM1062 & NDR1292

A wood strip must be in place across the up-

per opening of the enclosure. The top frame
of the refrigerator will be anchored to the
wood strip with screws.

When installing the refrigerator in the enclosure, all areas •
within the recess have to be sealed. Verify 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. The sealing strip should provide a complete
isolation of the appliance’s combustion system from the
vehicle interior.

RM2351 and RM2354: Apply a sealing strip to the foremost

fl oor of the enclosure.

SECURING THE REFRIGERATOR

It is important to follow the sequence in securing refrigerator
in enclosure since failure in doing so can cause leakage be­tween the frame and cabinet. Any space between the counter,
storage area or ceiling and top of the refrigerator greater than
1 1/2 inches should be blocked. The heat produced at the rear
of the refrigerator will become trapped in this space, making
the top of the refrigerator hot and reduce the effi ciency of the
refrigerator.

After the refrigerator is put in place (ensuring a combustion
seal at the front frame), the refrigerator is to be secured in the
enclosure with screws (not included).

RM2351 & RM2354

Install the fi ve screws in the following order:

Four screws installed through the front frame.1.
(To cover the screw heads, use the plugs in the parts
bag.)

One screw installed in the rear base. 2.

2

1

Be careful not to damage the sealing strip when the
refrigerator is put in place!

RM2351& RM2354RM2451, RM2454, RM2551,
RM2554, DM2652, DM2662,
DM2663, DM2852, DM2862,
DM3862, NDM1062 & NDR1292

General view. Features may vary according to model.

- 6 -

INSTALLATION PROCEDURE

RM2451, RM2454, RM2551, RM2554, DM2652,
DM2662, DM2663, DM2852, DM2862, DM3862 &
NDM1062

Install the screws in the following order:

T wo screws installed through the front base. 1.
(Installation of the lower front strip.)

The refrigerator is provided with a lower front strip
(shipped as a loose part). Attach the front strip after
the refrigerator is set into the cutout opening.

Install the lower front strip by sliding it under the a)
bottom hinge plate. The hinge plate can be on the
right or left side depending on the door swing.
Once the lower front strip is slipped under the
hinge, the part is possible to swing into place.

Secure the refrigerator and the lower front strip b)
with two screws: One screw through the hinge and
on the opposite side and then, one screw through
the lower front strip.

One screw installed in the rear base. 3.

NDR1292

Install the screws in the following order:

T wo screws installed through the front base. 1.
(Installation of the lower front strip.)

The refrigerator is provided with a lower front strip
(shipped as a loose part). Attach the front strip after
the refrigerator is set into the cutout opening.

Install the a)
lower front
strip by slid­ing it under
the bottom
hinge plate.

Secure the b)
refrigerator and
the lower front
strip with two
screws: One
screw through
each hinge.

T wo screws installed in the top frame.2.

Open the door. Gently push the a)
tabs out of the hole in the hinge
with a fl at blade screwdriver
(both sides).

Carefully tilt the top decoration b)
panel and lift to remove from
top frame. Be careful not to
damage the circuit board and wires.

Install the two screws in the top frame, the holes c)
are accessible from underneath.

Seal the opening for the screws with aluminum d)
tape.

Replace the top decoration panel. Be careful not e)
to pinch the wires behind the panel. Make sure the
tabs snap back into the holes in the hinge plate.

Screws installed in the top frame.2.

Open the doors and remove a)
the four screws that secure the
top decoration panel to the
top frame. Two screws are ac­cessible from underneath and

2

1

- 7 -

two are located on each side of
the lock retainer securing the
decoration panel to the front frame. Save screws
for reinstallation of the top decoration panel.

See step 2, b-e in the previous instruction.b)

T wo screws installed in the rear base.3.

INSTALLATION PROCEDURE

DRAIN WATER HOSE

Drill a hole through fl ooring. To avoid damage to the hose,
the hole must be positioned so that the hose doesn’t touch the
boiler casing. Seal around the hose that goes through the drilled
hole and ensure that it does not kink when run through the
fl oor. Check to make sure that the supplied hose is long enough
in order for the water to drain outside of the vehicle. If not, the
installer will have to supply the extra length of hose.

RM2351 & RM2354

Boiler
casing

Hose

Hole for drain
water hose

RM2451, RM2454, RM2551, RM2554, DM2652, DM2662,
DM2663, DM2852, DM2862, DM3862 & NDM1062

CONNECTIONS
Gas connection

Hook up to the gas supply line is accomplished at the manual
gas valve, which is furnished with a 3/8” SAE (UNF 5/8” -18)
male fl are connection. All completed connections should be
examined for leaks using a solution of liquid detergent and
water.

WARNING

!

6

EXPLOSION HAZARD. Never use an open
fl ame to check for gas leaks. Failure to heed this
warning could cause an explosion resulting in
death or severe personal injury.

The gas supply system must incorporate a pressure regulator
to maintain a supply pressure of not more than 11 inches water
column. When testing the gas supply system at test pressures:

> 1/2 psi• - the refrigerator and its individual shutoff valve

must be disconnected from the gas supply piping system.

 1/2 psi • - the appliance must be isolated from the gas

supply piping system by closing its individual manual shut­off valve.

If detailed instructions on the installation and connection to
the gas supply are required, please contact your dealer or
distributor.

NDR1292

Hole for drain
water hose

Boiler
casing

Hose

Boiler
casing

Hose

Hole for drain
water hose

Drill the hole in the
cut out opening of
the base plate

Testing LP gas safety shut off

The gas safety shut off must be tested after the refrigerator is
connected to LP gas supply.

RM2354, RM2454, RM2554, DM2662, DM2663,
DM2862, DM3862, NDM1062 & NDR1292

To test the gas safety shut off, follow these steps:

Start the refrigerator. Switch to GAS mode. 1.

Check that the gas fl ame is lit and the GAS mode 2.
indicator lamp is on.

Close the manual gas shutoff valve at the back of the 3.
refrigerator.

Wait for approx. 6 minutes. The CHECK indicator 4.
lamp should be lit and the GAS mode indicator lamp
should be off.

Remove the protection cover. 5.

Open the manual gas shutoff valve. Do not change 6.
any button positions on the control panel.

Apply a non corrosive commercial bubble solution 7.
to the burner jet orifi ce. No bubbles should appear at
the opening of the burner jet orifi ce. The presence of
bubbles indicates a defective gas safety shutoff, and
service is required.

If no bubbles are present at the burner jet orifi ce, 8.
rinse it with fresh water. Be careful not to damage the
burner jet orifi ce.

- 8 -

INSTALLATION PROCEDURE

Put back the cover. 9.

Press the ON/OFF button off and then back on. Nor-10.
mal operation of the burner should return.

Allow the burner to operate for a minimum of fi ve 11.
minutes.

RM2351, RM2451, RM2551, DM2652 & DM2852

To test the gas safety shut off, follow these steps:

Start the refrigerator without connecting to 1.
120V AC.

Check that the gas fl ame is lit. In AUTO mode, 2.
the AUTO mode indicator lamp is on.

Follow steps 3-11 in the previous instruction. 3.

Electrical connection

120 V AC connection

The refrigerator is equipped with a grounded three-prong plug
for protection against shock hazards. It should be plugged di-

rectly into a properly grounded three-prong receptacle. Do not

cut or remove the grounding prong from this plug!

The free length of the cord is 2 feet. It should be routed to
avoid direct contact with the burner cover, fl ue cover or any
other components that could damage the cord insulation.

To allow easy access through the vent door, it is recommended
that the receptacle is placed like this:

RM2351 & RM2354•

To the left of the refrigerator and 4-6” above the refrigerator

mounting fl oor

RM2451, RM2454, RM2551, RM2554, DM2652 & •
DM2852

To the left of the refrigerator and 6” above the refrigerator

mounting fl oor

DM2662, DM2663, DM2862, DM3862 & NDM1062•

To the left of the refrigerator and 3” above the refrigerator

mounting fl oor.

NDR1292•

To the right of the refrigerator and 10” above the refrigerator

mounting fl oor.

12V DC connection

RM2451, RM2551, DM2652 & DM2852: These refrigerator

models are not designed for 12V DC operation of the cooling
system. However, 12V DC must be supplied to operate the
controls.

RM2354, RM2454, RM2554, DM2662, DM2663, DM2862,
DM3862 & NDM1062: These refrigerator models require a

continuous 12V DC supply to maintain the automatic energy
system.

The connection is made to the positive (+) and negative (-)
terminals of the terminal block on back of the refrigerator.

Correct polarity must be observed when connecting to the DC
supply. Do not use the chassis or vehicle frame as one of the
conductors. Connect two wires at the refrigerator and route to
the DC supply. Ensure the connections are clean, tight and free
from corrosion.

Ensure that the wires from the battery to the refrigerator are
able to handle the load. The distance the current must travel
from the battery to the refrigerator dictates the AWG wire size
to be used. Inadequate wire sizes can result in a voltage drop
which affects the refrigerator performance.

For 3-way models, the voltage drop affects the wattage output
of the 12V cartridge heater and the refrigerator performance.
The 12V DC heater is fused with a 30 amp. in-line blade fuse.

Recommended wire sizes are displayed in the following table:

MAXIMUM TOTAL CONDUCTOR WIRE LENGTH

WIRE

MODEL

RM2351
RM2451
RM2551
DM2652
DM2662
DM2852
DM2862
DM3862
NDM1062
NDR1292

Size Length

AWG

14

12

ft m

17

27

5

8

RM2451, RM2454, RM2551,
RM2554, DM2652, DM2662,
DM2663, DM2852, DM2862,
DM3862 & NDM1062

120V AC
receptacle

olt AC
tacle

3”
4-6”
6”

NDR1292

120V AC
receptacle

10”

- 9 -

RM2354
RM2454
RM2554
DM2663

10

17

8

27

5

8

DOOR MOUNTING INSTRUCTIONS

REVERSING THE DOOR SWING

For all models, except NDR1292, the refrigerators are equipped
with hinges that makes it possible to change the direction the
door opens by moving the hinges to the opposite side. A special
hinge kit must be used in order to change the door swing.
For conversion kit number, see

APPENDIX A - SPARE PARTS.

For additional information, please contact service point or
distributor service dept. for assistance.

MOUNTING THE DOOR PANEL(S)

Optional door insert panels are available for all
models except NDR1292. The refrigerator is normal­ly delivered without door panel(s).

Before starting the mounting work, read this instruction thor­oughly and check that the panel dimensions are in compliance
with those given in the following table:

PANEL DIMENSIONS

max. thickness 5/32" (4 mm)

Width

max min

UPPER

LOWER /SINGLE
DOOR

Height

max min

mm

403 401 527 524

inch

15-27/32 15-25/32 20-3/4 20-5/8

With screws

To mount the panel, follow these steps:

Open the door 90 degrees. 1.

On new refrigerators, the decoration strip is taped 2.
inside the door; if installed on the door, remove
the door decoration strip (2) by removing its three
screws (1).

NDR1292:

Fresh food compartment door - remove three screws.
Freezer compartment door - remove two screws.

Insert the vertical edges into the grooves of the door 3.
frame (3).

Push the panel downwards so that the lower 4.
horizontal edge of the panel (4) is fi tted into the bot­tom grove (5).

Put the decoration strip across the door so that the 5.
gap is covered. Secure the decoration strip with the
screws removed in step 2.

1

1

1

2

RM2351
RM2354

RM2451
RM2454

667 665 498 496

mm

26-17/64 26-3/16 19-5/8 19-17/32

inch

827 825 527 524

mm

DM2652
DM2662
DM2663

RM2551
RM2554

32-9/16 32-1/2 20-3/4 20-5/8

inch

983 981 527 524

mm

DM2852
DM2862
NDM1062

38-11/16 38-5/8 20-3/4 20-5/8

inch

FROZEN FOOD
COMPARTMENT

mm

NDR1292

1402 1400 288 265

inch

55-3/16 55-1/8 10-9/16 10-7/16

FRESH FOOD COMPARTMENT

mm

NDR1292

1402 1400 430 427

inch

55-3/16 55-1/8 16-15/16 16-13/16

1

1

1

3

3

4

5

- 10 -

DOOR MOUNTING INSTRUCTIONS

Snap in

To mount the panel, follow these steps:

Open the door 90 degrees. 1.

On new refrigerators, the decoration strip are 2.
taped inside the door; if installed on the door,
remove the door decoration strip (2) by gently
pushing the four tabs away with a fl at blade
screwdriver (1).

Insert the vertical edges into the grooves of the 3.
door frame (3).

Push the panel downwards so that the lower 4.
horizontal edge of the panel (4) is fi tted into the
bottom grove (5).

Snap in the decoration strip (2). 5.

1

2

2

3

4

5

3

REFRIGERATOR REMOVAL

Before removing the refrigerator:

Verify that the AC and DC voltage leads are disconnected. •

Shut off the gas supply. •

Disconnect the gas supply line at the rear of the refrigerator.•
Always use a back up wrench when loosening and tighten­ing connections.

To remove the refrigerator, follow these steps:

Cap the gas supply line.1.

Loosen the screws anchoring the refrigerator to the 2.
enclosure.

Slide the refrigerator out of the compartment.3.

Replacement is the reverse of removal. When reinstalling the
refrigerator, make sure the sealing strips are properly posi­tioned. Check all connections for gas leaks.

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OPERATING INSTRUCTIONS

REFRIGERATOR OVERVIEW

ABSORPTION COOLING SYSTEM

In an absorption refrigerator system, ammonia is liquefi ed in
the fi nned condenser coil at the top rear of the refrigerator.
The liquid ammonia then fl ows into the evaporator (inside the
freezer section) and is exposed to a circulating fl ow of hydro­gen gas, which causes the ammonia to evaporate, creating a
cold condition in the freezer.

When starting this refrigerator for the very fi rst
time, the cooling cycle may require up to four
hours of running time before the cooling unit is
fully operational.

The tubing in the evaporator section is specifi cally sloped to
provide a continuous movement of liquid ammonia, fl owing
downward by gravity through this section.

Sodium chromate is used for corrosion protection (less than
2 weight % of the coolant).

Leveling the refrigerator

Leveling is one of the requirements for proper operation with
absorption refrigerators. to ensure proper leveling the vehicle
needs to be leveled only so it is comfortable to live in (no no­ticeable sloping of fl oor or walls).

Any time the vehicle is parked for several hours with the refrig­erator operating, the vehicle should be leveled to prevent this
loss of cooling.

If the refrigerator is operated when it is not level and the
vehicle is not moving, liquid ammonia will accumulate in sec­tions of the evaporator tubing. This will slow the circulation
of hydrogen and ammonia gas, or in severe cases, completely
block it, resulting in a loss of cooling.

When the vehicle is moving, the leveling is not critical, as the
rolling and pitching movement of the vehicle will pass to either
side of level, keeping the liquid ammonia from accumulating in
the evaporator tubing.

MODES OF OPERATION

AUTO mode - AES/AUTO mode

When operating in AUTO - AES/AUTO mode, the AUTO ­AES/AUTO mode indicator lamp is illuminated. The control sys­tem will automatically select between AC and GAS operation.
AC has priority over GAS. Should AC become unavailable, the
system automatically switches to GAS. As soon as AC becomes
available again, the control will switch back to AC regardless
of the status of the GAS operation.

If the CHECK indicator lamp is illuminated the controls have
failed to ignite the burner in the GAS mode. To restart an igni­tion attempt with the CHECK lamp illuminated (or to turn off
the CHECK lamp), press the ON/OFF button OFF and back
ON again. The control system activates the ignition system and
makes three attempts to light the burner for a period of approx.
45 sec. at two minutes interval. Should 120 V AC become
available while the CHECK indicator lamp is on, the CHECK
lamp will not turn off until the ON/OFF button is pressed OFF
and then ON again.

GAS mode

RM2351, RM2451, RM2551, DM2652 & DM2852:

When operating in GAS mode, the AUTO mode
indicator lamp will be off.

RM2354, RM2454, RM2554, DM2662, DM2663, DM2862,
DM3862, NDM1062 & NDR1292: When operating in GAS

mode, the GAS mode indictor lamp is illuminated.

This mode provides LP gas only. The control system activates
the ignition system and attempts to light the burner for a period
of approx. 45 sec. at two minutes interval. If unsuccessful, the
CHECK indicator lamp will illuminate.

To restart GAS operation, press the ON/OFF button to OFF
and then back ON. The control system attempts a new ignition
sequence.

AUTOMATIC ENERGY SELECTOR SYSTEM

The refrigerator is equipped with an automatic energy selector
system. The user turns the refrigerator on and then, the refriger­ator automatically selects the most suitable energy source avail­able, either 120 V AC or LP gas operation. The system can be
set by the user to be fully automatic (AUTO mode is selected)
or to operate on LP gas only (AUTO mode is off).

On 3-way models, the control system can manually be set to
DC mode (DC operation). The DC mode overrides all other
operating modes.

The refrigerator controls will work down to 9.6 V DC.

Purging air from the lines

If the refrigerator has not been used for a long time - or ­the LP tanks have just been refi lled, air may be trapped in the
supply lines. To purge the air from the lines, turn the refrigera­tor off and on by pressing the ON/OFF button. If the fl ame is
not lit within 45 seconds, turn the refrigerator off and back on
again. This procedure can be repeated 3 to 4 times. If repeated
attempts fail to start the LP gas operation, check to make sure
that the LP gas supply tanks are not empty and that all manual
shutoff valves in the lines are open.

WARNING

!

6

FIRE OR EXPLOSION HAZARD. When refu­eling or parked near gasoline pumps, shut off all
LP gas appliances. Failure to heed this warning
could cause a fi re or explosion resulting in death
or severe personal injury.

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