Dometic RM3762, RM3962 User Manual

®

RM3762

RM3962

FOR YOUR SAFETY

If you smell gas:

1.Open windows.

2.Don’t touch electrical switches.

3.Extinguish any open flame.

4.Immediately call your gas supplier.

FOR YOUR SAFETY

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

USER manual

Refrigerator for LP-gas & electric operation

Pour votre sécurité

Si vous sentez une odeur de gaz:

1.Ouvrez les fenêtres.

2.Ne touchez à aucun interrupteur.

3.Éteignez toute flamme 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 inflammables 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 qualified installer, service agency or the gas supplier.

! AVERTISSEMENT

Une installation, un réglage, une modification, 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 qualifié ou le fournisseur de gaz.

®

USA	Corporate Office	cANADA
Service Office	2320 Industrial Parkway Elkhart, IN 46515	Dometic Corporation
Dometic Corporation		46 Zatonski, Unit 3
2320 Industrial Pkwy.	For Service Center Assistance	Brantford, ON N3T 5L8
Elkhart, IN 46516		CANADA
Phone: [phone]	Call: 800-544-4881	Phone: [phone]
825125601		MO-M 0710

(French 825125651)

©2006-2007 Dometic Corporation LaGrange, IN 46761

introduction

Thank you for entrusting us to supply your new quality-guaranteed refrigerator which 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).

In this user manual you will find information about how to operate and care for RM3762 and RM3962. 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. Be aware of possible safety hazards when seeing alert symbols on the refrigerator as well as in this manual. Plese note that installation and service should be performed by qualified personnel only. For installation instructions, refer to the Installation manual (825125501).

contents

Certification and Code Requirements_______ 3	maintenance & service______________________ 9
refrigerator overview_____________________ 3	troubleshooting & diagnostic test_______ 11
operating the refrigerator________________ 6	appendix A - spare parts___________________ 14
Storage compartments_____________________ 6	appendix B - consumer support____________ 15
product care_______________________________ 9	appendix C - Dometic warranty &
	maintenance schedule______________________16

Symbols

The following symbols are used throughout the manual:

!

WARNING

Indicates a potentially hazardous situation, which, if not avoided, could result in death or serious injury.

! CAUTION

CAUTION

Indicates a potentially hazardous situation, which, if not avoided, may result in minor or moderate injury.

Used without the safety alert symbol indicates, a potentially hazardous situation which, if not avoided may result in property damage.

Information

Step-by-step instructions

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Certification and Code Requirements

This appliance is certified 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).

refrigerator overview

Control panel LED display panel

	Top decor	Ice box
		Retainer
	Wire shelf
	Finned plate	Door compartments
	Drip protection	Features:
		• 2-way operation (LP/120V AC)
		• Stand-by operation mode which keeps
	Draining pipe	the refrigerator operating in case of
		malfunction.
		• Eye-level electronic controls automati-
	Wire shelves	cally adjust the temperature inside to
		maintain consistent cooling, regardless
	Plastic shelf	of the temperature outside.
		• Versatile racking system. Adjustable
		shelves and door bins, large bottle stor-
	Crispers	age and dual crispers.

Model shown: RM3762.

The number of shelves and door compartments may vary according to model.

•Travel latch

•Defrost water drain system

•Doors open 180 degrees

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refrigerator overview

Control panel

1

2

3

LED display panel

4 3

The LED display panel provides a quick visual indicator of the temperature of the food in the fresh food cabinet, modes of operation, status messages and alarm conditions.

1.ON/OFF button (main power)

Press the button to turn the refrigerator on or off.

2.AUTO/GAS mode selector button

Press the button to turn the AUTO mode on or off.

3.TEMP. SET button

The thermostat has 5 settings where 1 indicates the warmest and 5 the coldest temperature setting. Press the button repeatedly until the desired setting, e.g. 3, is shown in the LED display. This value is shown for about 5 seconds and then the temperature is displayed again, e.g. 43.

LED panel indications				Status information
Display is on				Refrigerator on
Display is off				Refrigerator off
The AUTO				AUTO mode and
indication				AC operation
dot is lit.
The AUTO				AUTO mode and
and LP				GAS operation
indication
dots are lit.
The LP				Manual gas operation
indication				mode.
dot is lit.
Digits	E.g.
				Fresh food temperature.
		4	3
				Thermostat range setting
			3	indication (1 - 5).
				Temporary during setting.
				The thermostat settings
				are stored automatically
				after 5 sec. of inactivity.
Message indications:
				Temperature is above
60 is		6 0		measurement range
displayed.
LP is flashing				Gas operation lock out.
(The message		l P		(Check gas.)
alternates
between LP
and the temperature.)

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refrigerator overview

Absorption cooling system

In an absorption refrigerator system, ammonia is liquefied in the finned condenser coil at the top rear 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.

When starting this refrigerator for the very first 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 specifically sloped to provide a continuous movement of liquid ammonia, flowing downward by gravity through this section.

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 so it is comfortable to live in (no noticeable sloping of floor 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.

automatic energy selector Control system

The refrigerator is equipped with an automatic energy selector control system. The user turns the refrigerator on, selects the desired temperature 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).

The refrigerator controls will work down to 9.6 volt DC.

Modes of operation - AUTO and GAS

AUTO mode

When the refrigerator is in AUTO mode, it automatically uses the most efficient energy source that is available for operation. Should a more efficient energy source become available during operation, the refrigerator controls change from the current energy source to the more efficient energy source as follows:

1.AC operation (if 120V AC is available). AC operation is only possible in AUTO mode.

2.GAS operation (if 120V AC is not available).

GAS mode (manual LP gas operation)

When AUTO mode is turned off, the refrigerator uses gas as energy source - even if AC is available.

!

WARNING

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 fire or explosion resulting in death or severe personal injury.

operating the refrigerator

!

WARNING

FIRE HAZARD. Before lighting the gas burner, after that the RV has not been used for some time, please check that the gas path between the burner jet and the burner tube has not been obstructed. Failure to heed this warning could cause a fire resulting in personal injury

SOLENOID VALVE .	NUT
	THERMOCOUPLE
INLET FITTING
MANUAL SHUTOFF VALVE .
Shown in open position
	SPARK ELECTRODE
PRESSURE TEST PORT .	BURNER TUBE
BURNER JET .	BURNER MOUNTING SCREW

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operating the refrigerator

Startup

Before starting the refrigerator:

•Check that all the manual gas valves are in the ON position.

•Make sure that a continuous 12V DC supply is available for the electronic control to function.

To start the refrigerator:

1. Press the ON/OFF button.

2.Select operation mode:

•AUTO mode (AC and GAS)

Press the AUTO/GAS mode selector button (if not already on).

•GAS mode (gas operation only)

Press the AUTO/GAS mode selector button to turn off the AUTO mode (if not already off).

Adjusting the thermostat

The thermostat controls both the gas and electric operation. Thus it is not necessary to reset each time a different energy source is employed. The adjustable thermostat ranges from 1 - 5 where 5 signifies the coldest temperature setting. After

the initial start-up, adjust the thermostat by pressing the TEMP. SET button repeatedly until the desired setting is displayed.

Turning off the refrigerator

The refrigerator may be shut off while in any mode of operation by pressing the main power ON/OFF button (OFF position). This shuts off all DC power to the refrigerator, including the interior light.

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 trays should also be dried and kept outside the cabinet.

Storage compartments

!

WARNING

EXPLOSION HAZARD. Never store explosive substances in the refrigerator, such as cigarette lighter fuel, gasoline, ether or the like. Failure to heed this warning could cause an explosion resulting in death or severe personal injury.

Refrigerator volume

Refrigerator model	Total refrigerated volume
	(cu.ft)
RM3762	7
RM3962	9

Food storage compartment

•Cool the refrigerator before placing any food inside. Never put hot food or drinks into the refrigerator - cool them first.

•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 the refrigerator are under the cooling fins and at the bottom of the refrigerator. The warmer areas are on the upper door shelves. This should be considered when placing different types of food in the refrigerator.

•Arrange all food in the unit to allow for free air circulation. Do not overpack because a stuffed refrigerator must work harder and will have higher cabinet temperatures.

•Do not leave the unit’s door open any longer than necessary. This will reduce frost formation and increase the efficiency of the refrigerator.

Frozen food storage compartment

This compartment is not designed for deep or quick freezing of food.

•To prevent food from drying out, keep it in covered dishes, containers, plastic bags or wrapped in aluminum foil.

•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 stored about three times longer in the frozen food compartment as compared to the fresh food 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.

•Frozen vegetables, may be stored in any part of the compartment.

•To prevent frost buildup, which can reduce the efficiency, wipe excess moisture off items being placed in the compartment.

Ice cubes

Ice cubes can be made in the freezer compartment. Place the trays in direct contact with the bottom of the freezer compartment. Ice will be made more rapidly if f the thermostat is set at its highest position, but be sure to move the thermostat back

to normal setting when the ice is formed; the refrigerator might otherwise become too cold.

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