Dometic RM2852 Refrigerator User Manual
Contents
1. DESCRIPTION OF OPERATING MODES AUTO MODE When operating in the AUTO mode the AUTO mode indicator lamp A will illuminate The control system will automatically select between AC and GAS operation with AC having priority over GAS If the control system is operating with AC energy and it then becomes unavailable the system will automatically switch to GAS As soon as AC becomes available again the control will switch back to AC operation Gas operation 120 volts AC is not available The control system will activate the ignition system and will make three attempt to light the burner for a period of approxi mately 45 seconds with two minutes interval If unsuc cessful the CHECK indicator lamp B will illuminate To restart an ignition attempt with the CHECK lamp illu minated or to clear turn off the CHECK lamp press the main power ON OFF button to the OFF and then ON position The control system will attempt a new ignition sequence If 120 volts AC becomes available while the CHECK in dicator lamp is on the CHECK lamp will not turn off until the main power ON OFF button is pressed to the OFF then ON position GAS MODE When operating in the GAS mode the AUTO mode indicator lamp A will be off This mode provides LP gas operation only The control system will activate the igni tion system and will make three attempt to light the burner for a period of approximately 45 seconds with two min utes interval If unsuccessf2. Remove the shelf locks from the wire shelf Slide the wire shelf to the left The right hand side of the shelf will come loose t T Zi Lower the right hand side of the wire shelf and Slide the plastic plugs into the holes of the wall let the left hand side slide out of the holes in the Snap the shelf locks onto the wire shelf wall 585 05 66 RM2652 RM2852 A BURNER HOUSING CHASSIS GROUND CIRCUIT BOARD DISPLAY CIRCUIT BOARD POWER Ed ELECTRODE D FUSE 3A FUSE 5A HEATER 120V AC HEATING CABLE LIGHT PROTECTIVE EARTH REIGNITER RETAINER SOLENOID VALVE SWITCH DC R SWITCH LIGHT gt TERMINAL BLOCK D TEST POINT UY THERMISTOR UY THERMOCOUPLE D BLACK gt BROWN RED YELLOW 5 GREEN amp GREEN YELLOW BLUE WHITE 9 ORANGE 17 MO FO 0327
3. 17 37 68 03 7 A B Heater 325W 120V 293 20 52 01 8 A B Thermocouple 293 25 75 01 8 A B Door shelf lower 293 25 76 01 6 A Door shelf 2 pieces 293 25 76 01 6 B Door shelf 3 pieces 293 25 77 01 4 A B Door shelf freezer 293 26 21 01 0 A B Box vegetable 293 21 06 01 2 A B Lamp cover 293 20 93 01 2 A B Handle light brown 293 20 93 03 8 A B Handle black 293 27 50 08 2 A B Door reversing kit right left light brown 293 27 50 09 0 A B Door reversing kit left right light brown 293 27 50 11 6 A B Door reversing kit right left black 293 27 50 12 4 A B Door reversing kit left right black 293 27 50 15 7 A Door reversing kit right left silver 293 27 50 16 5 A B Door reversing kit left right silver Contact an authorized service center for parts and repairs as needed m q 2 3 3 1 LA e ASS CERTIFIED VENT SYSTEM KITS REFRIGERATOR KIT MODEL NO COMPONENTS PART NO Roof Base 3103633 XXX Roof Cover 3103634 XXX Lower Side Vent 3109350 XXX Fill in XXX with color code numbers For color codes contact your supplier For further information contact your dealer or distributor 15 Positioning of shelves Put a screwdriver into the slot of the shelf lock Insert the ends of the wire shelf on the left hand Turn the screwdriver counterclockwise side at the desired position
4. gas supply at the LP tank Disconnect the gas supply line at the rear of the refrigerator see FIG 1 Always use a back up wrench when loosening and tight ening connections Cap the gas supply line loosen the screws anchoring the refrigerator to the enclosure and slide the refrigera tor out of the compartment When replacing the refrigerator make sure that the seal ing strips are properly positioned Replacement is the reverse of removal Check all con nections for gas leaks Refer to section INSTALLATION page 4 to 8 2 PERIODIC MAINTENANCE To keep your Dometic refrigerator operating efficiently and safely periodic inspection and cleaning of several components once or twice a year is recommended A It is important to keep the area at the back of the refrigerator clean Check the lower vent upper vent and area between these openings for any obstruc tions such as bird insect nests spider webs etc Clean the coils on the back of the refrigerator Use a soft bristled brush to dust off the coils It is important to keep the refrigerator area free from combustible material gasoline and other flammable vapors or liquids NOTE The following maintenance is required once or twice a year but should only be done by a qualified ser viceman who is familiar with LP gas systems and refrig erators 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
5. is dependent on adequate flow of air over the rear of the refrigerator VENTILATION HEIGHTS Minimum ventilation heights in Installation with roof vent and lower side vent Refrigerator Inches cee AE RM2652 57 3 4 RM2852 63 3 4 NOTE Wood Strip we MUST be in place N M Yo b CLEARANCES Minimum clearances in inches to combustible materials are G Top 0 K Side 0 L Bottom 0 M Rear 0 N See NOTE Clearance N below 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 bot tom of the lower side vent to the roof material For ven tilation height see table VENTILATION HEIGHTS See Figures 9 and 10 View from above Side view Overall Recess Dimensions Dimensions A B 0 H W D mm 1388 632 661 1365 602 610 inch 60 51 64 24 7 8 26 1 32 59 15 16 23 11 16 24 RM2852 mm 1544 632 661 1522 602 610 This method of installation and these clearances will give you adequate space for service and proper installation Refrigerator Model OPERATING INSTRUCTIONS IMPORTANCE OF LEVELING A REFRIGERATOR In an absorption refrigerator system ammonia is lique fied in the finned condenser coil at the t
6. mode indicator lamp A will illuminate If 120 volts AC is available the control system will select AC operation If 120 volts AC is not available the control system will automati cally switch to GAS operation Within 45 seconds the burner should be ignited and operating normally Ifthe CHECK indicator lamp B illuminates the con trol has failed to ignite the burner on GAS To reset when the CHECK indicator lamp B is illu minated press the main power ON OFF button 1 to the OFF then ON position On the initial refrigerator start up on gas 120 volts AC is not available it may take longer than 45 sec onds to allow air to be purged from the gas line If the refrigerator has not been used for a long time or the LP tanks have just been refilled air may be trapped in the supply lines To purge the air from the lines may require resetting the main power ON OFF button 1 three or four 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 all manual shutoff valves in the lines are open If the problem is still not corrected contact a service cen ter for assistance NOTE Do not continue to reset GAS operation if the CHECK indicator lamp continues to be illuminated after several tries In AUTO mode operation the temperature is con trolled by a factory preset temperature setting GAS MODE 1 Move the AUTO GAS mode selector button 2 t
7. the back of the refrigerator See FIG 1 4 Wait for one minute The CHECK indicator lamp B should be on and the flame extinguished 5 Remove protection cover see FIG 1 and open the manual gas shutoff valve Do not change any button positions on the control panel Apply a non corrosive commercial bubble solution to the burner jet orifice 6 No bubbles should appear at the opening of the burner jet orifice The presence of bubbles indi cates a defective gas safety shutoff and service is required 7 If no bubbles were present at the burner jet orifice it should be rinsed with fresh water Be careful not to damage the burner jet orifice Replace cover and press the main power ON OFF button 1 OFF and back ON Normal operation of the burner should return Allow the burner to operate for a minimum of 5 minutes CERTIFIED INSTALLATION Certified installations require one roof vent and one lower side vent For Certified Vent System Kits see page 15 For further information contact your dealer or distributor NOTE The upper vent should be centered over the condenser coil at the back of the refrigerator Minimum ventilation _ Ns height gt N S ee e 7 7 Condenser m FIG 9 METHODS OF INSTALLATION The method of installation is shown in FIG 9 It is essential that all maximum or minimum dimensions are strictly maintained as the performance of the refrig erator
8. AC To replace the heater proceed as follows Disconnect the wall plug and the 12 volt wires Remove the power module cover see FIG 1 Disconnect the heater leads With a pair of pliers unfold the lug holding the lid of the boiler casing and open the lid 5 Remove some insulation wool so that the heater is accessible 6 Turn and lift the heater out of its pocket 7 Fit the new heater into the pocket 8 Connect the leads and put on the power module cover 9 Reset the insulation and close the lid of the boiler FUSES These models are equipped with 2 fuses one for the refrigerator control system and one for the AC cartridge heater See table below 5 D To replace fuse s proceed as follows Disconnect the wall plug and the 12 volt wires Remove the power module cover See FIG 1 Snap the fuse out of the fuse holder Fit a new fuse in to the fuse holder Replace the power module cover OO D Control system AC heater NUT THERMOCOUPLE BURNER MOUNTING SCREW MAINTENANCE amp SERVICE 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 per formed by a qualified technician who is familiar with LP gas systems and refrigerators 1 REFRIGERATOR REMOVAL Before working on the refrigerator make sure the AC voltage and DC voltage leads are disconnected Shut off the
9. Apply a non corrosive bubble solution to all LP gas connections The appearance of bubbles indicates a leak and should be repaired immediately by a QUALIFIED SERVICEMAN WHO IS FAMILIAR WITH GAS SYS TEM AND REFRIGERATORS DO NOT use a flame to check for gas leaks C Check the control system by connecting disconnect ing 120 volt AC power start stop the engine etc Compare the operation with the operation described in section Operating Instructions D The LP gas pressure should be checked and the main regulator readjusted if pressure is incorrect The cor rect operating pressure is 11 inches of water column The correct place to take the LP gas pressure is at the test port just ahead of the burner jet See FIG 12 E Inspect the flue baffle It should be reasonably clean and free of soot Heavy soot formation indicates im proper functioning of the burner The flue and burner both require cleaning in the following manner 1 Unplug the refrigerator power cord from the 120 volt AC outlet See FIG 3 2 Disconnect or shut off the 12 volt DC power to the refrigerator Turn manual shutoff valve to OFF See FIG 1 8 12 Remove cover from the burner housing See FIG 1 Disconnect the wire from the high voltage electrode Remove the burner mounting screw and remove the burner assembly See FIG 12 7 Remove the wire and flue baffle from the top of flue tube Clean the flue from the top using a flue brush Blowing co
10. For further information please contact Dometic Corporation listed on the front page INSTRUCTIONS FOR MOUNTING THE DOOR PANEL The refrigerator is normally delivered without door panels Before starting the mounting work check that the panel dimensions are in compliance with those given in the table and the instructions are read thoroughly When mounting the panel proceed as follows See figure page 15 A Open the door 90 degrees On new refrigerators the decoration strips are taped inside the door if installed on the door remove the door decoration strip 2 by removing its three screws 1 B Insert the vertical edges into the grooves of the door frame 3 C Push the panel downward so that the lower hori zontal edge of the panel 4 is fitted into the bottom grove 5 D Put the decoration strip across the door so that the gap is covered Secure the decoration strip with the three screws removed in Step A 1 PANEL DIMENSIONS MAX THICKNESS 5 32 4 mm REFR MODELS HEIGHT WIDTH TYPE MIN MAX MIN 38 11 16 38 5 8 SPARE PARTS The following list is a list of commonly used parts which should be available if required from your Dometic Ser vice Center A RM2652 B RM2852 Part No Description 200 74 19 21 7 A B Jet No 58 293 06 97 07 9 A B Burner with conductor 293 27 81 01 2 A B Electrode 293 26 67 03 9 A Baffle 293 26 67 04 7 B Baffle 293 11 32 02 7 A B Spark ignition device
11. M Dometic INSTALLATION AND OPERATING INSTRUCTIONS REFRIGERATOR FOR LP GAS AND ELECTRIC OPERATION RM2652 RM2852 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 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 AMERICANA Contents Page Installation 4 Operating Instructions 8 Maintenance amp Service 12 Pour votre s curit Si vous sentez une odeur de gaz 1 Ouvrez les fen tres 2 Ne touchez aucun interrupteur 3 teignez toute flamme nue 4 Avertissez imm diatement votre fournis seur de gaz Pour votre s curit Ne pas entreposer ni utiliser de l essence ni d autres vapeurs ou liquides inflammables a proximit de cet appareil ou de tout autre appareil Avertissement Une installation un r glage une modification une r paration ou un entretien non conforme aux normes peut entra ner des blessures ou des dommages mat riels Lisez attentivement le mode d em ploi fourni avec l appareil Pour obtenir de l aide ou des renseignements s
12. ON OFF button to the UP OFF position Use a tape to close the light switch or remove the lamp bulb Empty the refrigerator leaving the drip tray under the finned evaporator and the cabinet and freezer doors open Defrosting time can be reduced by filling the ice trays with hot water and placing them in the freezer compart ment DO NOT use a hot air blower Permanent damage could result from warping the metal or plastic parts DO NOT use a knife or an ice pick or other sharp tools to remove frost from the freezer compartment They can create a leak in the ammonia system When all the frost has melted dry the interior of the re frigerator with a clean cloth Replace all food and turn your refrigerator back on CLEANING Cleaning the refrigerator is usually done after itis defrosted or put into storage To clean the interior liner of the re frigerator use lukewarm weak soda solution Use only warm water to clean the finned evaporator gasket ice tray and shelves NEVER use strong chemicals or abrasives to clean these parts as the protective surfaces will be damaged It is important to always keep the refrigerator clean SHUT OFF STORAGE PROCEDURE Shut off the refrigerator by pressing the main power ON OFF button to the UP 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 trays should also be dried and kept outside
13. P 1 Two screws installed through the front base which includes the lower front strip installation The refrigerator is provided with a lower front strip shipped as a loose part The front strip is to be attached after the refrigerator is set into the cutout opening 1 Install the lower front strip by sliding it under the bottom hinge plate as shown in FIG 5 The hinge plate can be on the right or left side depending on the door swing NS y a N N FIG 6 2 Once the lower front strip is slipped under the hinge the part is possible to swing into place as shown in FIG 6 3 Secure the refrigerator and the lower front strip with two screws One screw through the hinge and on the opposite side one screw through the lower front strip FIG 6 STEP 2 Two screws installed in the top frame The top decoration panel must be removed from the re frigerator before the screws can be installed Open the door and gently push the tabs out of the hole in the hinge with a flat blade screwdriver both sides See FIG 7 Carefully tilt the top decoration panel and lift up to re move from top frame Be careful not to damage the cir cuit board and wires FIG 7 4 1 1 Install the two screws in the top frame the holes are accessible from underneath Seal the opening for the screws with aluminum tape Replace the top decoration panel Be careful not to
14. The Refrigerator Does Not Cool Properly A Burner jet clogged Clean See Section Maintenance amp Service item 2 Periodic maintenance Paragraph E item 1 14 B Check level of refrigerator C Venting problem Restriction in air flow across cooling unit D Heavy frost buildup on evaporator fins Defrost E Flue baffle not inserted properly in flue tube F Burner dirty Clean See section Maintenance amp Service item 2 Periodic Maintenance Paragraph E item 1 14 G LP gas pressure low at burner Set main regulator so pressure does not drop below 11 inches of water column at pressure test port See FIG 12 13 H Burner not located properly under flue tube Relocate Burner damaged Replace J Odor from fumes 1 Dislocated burner 2 Damaged burner 3 Dirty flue tube K FUSES 1 Refrigerator AC Supply 2 Refrigerator control system See page 12 part FUSES NOTE AVOID SPRAYING WATER THROUGH THE REFRIGERATOR VENTS WHILE WASHING YOUR RV All the above instructions are to be followed closely The refrigerator is quality guaranteed However we are not responsible for any failures caused by improper adjust ments and unfavorable installation conditions Contact service point or distributor service dept for assistance CHANGING DOOR HINGES FROM ONE SIDE TO THE OTHER The refrigerator is equipped with convertible doors To change the door swing consult the parts manual for the Conversion Kit Number
15. e manual shutoff valve on the rear of the refrigerator see FIG 1 This refrigerator is equipped with a control system which can be set to automatically select either 120 volt AC or LP gas operation AUTO mode or if desired LP gas only GAS mode In both AUTO mode and GAS mode operation the tem perature is controlled by a factory preset temperature setting The refrigerator controls will work down to 9 6 volt DC WARNING Most LP gas appliances used in recreational ve hicles are vented to the outside of the vehicle When parked close to a gasoline pump it is pos sible that the gasoline fumes could enter this type of appliance and ignite from the burner flame CAUSING A FIRE OR AN EXPLOSION FOR YOUR SAFETY when refueling shut off all LP gas appliances which are vented to the out side Refrigerator control panel ON 65 CHECK C1 2 AUTOMATIC REFRIGERATOR TEMPERATURE CONTROL m OFF START UP INSTRUCTIONS A B C A continuous 12 volt DC supply must be available for the electronic control to function Press the main power ON OFF button 1 to the DOWN position In AUTO mode operation the temperature is con trolled by afactory preset temperature setting onthe energy source selected by the control system InGAS mode operation the temperature is controlled by a factory preset temperature setting AUTO MODE Press the AUTO GAS mode selector button 2 to the DOWN position The AUTO
16. e following standards as ap plicable In the U S the installation must conform with 1 National Fuel Gas Code ANSI Z223 1 NFPA 54 latest edition 2 Recreational Vehicles Code ANSI A119 2 latest edition 3 Manufactured Home Construction and Safety Standard Title 24 CFR Part 3280 If an external electrical source is utilized the refrigera tor when installed must be electrically grounded in ac cordance with local codes or in the absence of local codes the National Electrical Code ANSI NFPA 70 lat est edition In CANADA the installation must conform with 1 Natural Gas and Propane Installation Code CSA B149 1 2 CSAZ240 RV Series Recreational Vehicles 3 Current CSA 2240 4 Gas equipped Recreational Vehicles and Mobile Housing If an external electrical source is utilized the refrigera tor when installed must be electrically grounded in ac cordance with local codes or in the absence of local codes the Canadian Electrical Code CSA C22 1 Parts I and II latest edition 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 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 lower fresh air intake and one upper exhaust vent The ventilation kits shown in this instruction manual have b
17. een certified for use with the refrigerator models listed in the Table For Certified Vent System Kits see page 15 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 ventilating 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 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 flare connection All completed con nections should be checked for leaks with soapy water DO NOT use a flame to check for gas leaks The gas supply system must incorporate a pressure regu lator to maintain a supply pressure of not more than 11 inches water column When testing the gas supply system at test pressures in excess of 1 2 psi the refrigerator and its individual shutoff valve must be disconnected from the gas supply piping system When testing the gas supply system at pressures less than or equal to 1 2 psi the appliance must be isolated from the gas supply piping system by closing its ind
18. i vidual manual shutoff valve In case detailed instructions on the installation and con nection to the gas supply are required contact your dealer or distributor ELECTRICAL CONNECTION 120 Volts AC Connection The refrigerator is equipped with a three prong ground ing plug for your protection against shock hazards and should be plugged directly 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 and therefore recommended that the re ceptacle be located to the left side of the refrigerator viewed from the rear and approximately 6 inches from the floor see FIG 3 This allows easy access through the vent door The cord should be routed to avoid direct contact with the burner cover flue cover or any other components that could damage the cord insulation 120 Volt AC receptacle 12 Volts DC Connection This refrigerator model is not designed for 12 volt DC operation of the cooling system however a continuous 12 volt DC must be supplied to the refrigerator to oper ate the controls Use a minimum of a 14 gauge wire between the battery and refrigerator to supply the con trol voltage The connection is made to the positive and negative terminals located at the rear of the refrigerator See FIG 1 Correct polarity must be observed when connecting to the DC supply Do not use the chassis or vehicle frame as
19. mpressed air into the flue will not properly clean soot and scale out of the flue tube Replace the flue baffle 8 Clean burner tube with a brush Blow out burner with compressed air 9 Before removing burner jet clean burner area of soot and scale that fell out of flue tube Remove the burner jet Soak the jet in wood alcohol and blow it out with compressed air Reinstall and tighten burner jet O NOTE The color of the flame shall be clear blue over the slots of the burner See FIG 13 Clear blue color of flame FIG 13 YW 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 10 Reinstall burner being careful that the end of the burner fits into the slot on the burner bracket Check to make sure slots are centered under the flue tube and the thermocouple is positioned properly tip of thermocouple extends over two slots of burner 11 Be sure to reconnect the wire to high voltage elec trode Check the electrode for proper location and gap See FIG 14 FIG 14 Electrode 1 8 to 3 16 3 5 mm Burner tube 12 Turn on manual gas shutoff valve and check all fit tings for leaks with soapy water 13 Connect 120 volt power cord to the outlet and re connect or turn on the 12 volt DC power 14 Check LP gas safety shutoff See page 6 TROUBLESHOOTING
20. o the UP position The AUTO mode indicator lamp A will go off Within 45 seconds the burner should be ignited and operating normally 2 If the CHECK indicator lamp B illuminates the con trol has failed to ignite the burner on GAS To reset when the CHECK indicator lamp B is illu minated press the main power ON OFF button 1 to the OFF then ON position 3 On the initial refrigerator start up on gas it may take longer than 45 seconds to allow air to be purged from the gas line If the refrigerator has not been used for a long time or the LP tanks have been refilled air may be trapped in the supply lines To purge the air from the lines may require resetting the main power ON OFF button 1 three or four 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 all manual shutoff valves in the lines are open If the problem is still not corrected contact a service center for assistance NOTE Do not continue to reset GAS operation if the CHECK indicator lamp continues to be illuminated after several tries 4 In GAS mode operation the temperature is controlled by a factory preset temperature setting TO SHUT OFF THE REFRIGERATOR The refrigerator may be shut off while in any mode of operation by pressing the main power ON OFF button to the UP OFF position This shuts off all DC power to the control system Refrigerator control panel ON m OFF
21. one of the conductors Connect two wires at the refrigerator and route to the DC supply INSTALLING REFRIGERATOR IN ENCLOSURE NOTE DO NOT install the appliance directly on carpeting Carpeting 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 NOTE A wood strip must be in place across the upper opening of the enclosure The top frame of the refrigera tor will be anchored to the wood strip with screws See FIG 10 The refrigerator must be installed in a substantial enclo sure and must be level When installing the refrigerator in the enclosure all areas within the recess 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 ap plied to the rear surface of the front frame for this pur pose see FIG 4 The sealing should provide a complete isolation of the appliance s combustion system from the vehicle interior NOTE Be careful not to damage the sealing strip when the refrigerator is put in place Securing the Refrigerator After the refrigerator is put in place ensuring a com bustion seal at the front frame the refrigerator is to be secured in the enclosure with six screws not included The screws have to be installed in the following order STE
22. op 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 If the refrigerator is operated when it is not level and the ve hicle is not moving liquid ammonia will accumulate in sections of the evaporator tubing This will slow the cir culation 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 prevent this loss of cooling The vehicle needs to be leveled only so it is comfortable to live in no noticeable sloping of floor or walls 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 OPERATION Before starting the refrigerator check that all the manual gas valves are in the ON position DO NOT forget th
23. pinch the wires behind the panel Make sure the tabs snap back into the holes in the hinge plate STEP 3 Two screws installed in the rear base See FIG 8 Failure to follow the sequence in securing the refrigerator in the enclosure can cause leakage between the frame and cabinet fl Hole for drain water hose D FIG 8 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 efficiency of the refrigerator Drain water hose A hole must be drilled through flooring see FIG 8 The installer MUST make sure that the hose does not kink when run through the floor Seal around the hose that goes through the drilled hole If a longer hose than supplied is required to get the water to drain outside of the vehicle the installer will have to supply the extra length of hose TESTING LP GAS SAFETY SHUTOFF The gas safety shutoff must be tested after the re frigerator is connected to the LP gas supply To test the gas safety shutoff proceed as follows 1 Start the refrigerator according to the instructions without connecting to 120 volts AC 2 Check that the gas flame is lit In AUTO mode the AUTO mode indicator lamp A is on 3 Close the manual gas shutoff valve at
24. the cabinet DO NOT store explosive substances in the refrigera tor such as cigaretie lighter gas gasoline ether or the like NOTE Sodium chromate is used for corrosion protec tion less than 2 weight of the coolant CLIMATE CONTROL During the summer months of high temperatures and humidity the metal frame between the freezer and fresh food compartments may have water droplets forming The number of water droplets will increase if the vehicle isn t air conditioned during these months This refrigerator comes standard with a 12 volt DC climate control that will evaporate the water droplets when they form To have the climate control on you position the switch C see figure 2 located beneath the top decoration panel that houses the control panel to ON The climate control can be left on continuously or only used when temperatures require it NOTE The climate control will draw 12 volt DC power continuously when in the ON position It should be turned OFF when a charging source is not available 11 GAS EQUIPMENT ASSEMBLY SOLENOID VALVE INLET FITTING MANUAL SHUTOFF VALVE Shown in open position PRESSURE TEST PORT FIG 12 BURNER JET ELECTRIC EQUIPMENT CARTRIDGE HEATER The heat necessary for the operation of an absorption cooling unit is supplied by an electric heater mounted in a pocket of the boiler system These models are equipped with one electric heater for 120 volt
25. uently foods having a strong odor or those that absorb odors easily should be covered Vegetables salads etc should be covered to retain their crisoness 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 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 Frozen vegetables 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 pro vided 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 compart ment To prevent food from drying out keep it in covered dishes containers plastic bags or wrapped in aluminum foil Ice cubes can be made in the freezer compartment For faster ice making the trays should be placed in direct contact with the bottom of the freezer compartment Refrigerator volume Total refrigerated volume is 6 cu ft for the model RM2652 Total refrigerated volume is 8 cu ft for the model RM2852 DEFROSTING Shut off the refrigerator by pressing the main power
26. ul the CHECK indicator lamp B will illuminate To restart GAS operation press the main power ON OFF button 1 to the OFF and then ON position The control system will attempt a new ignition sequence If the refrigerator has not been used for a long time or the LP tanks have just been refilled air may be trapped in the supply lines To purge the air from the lines may require resetting the main power ON OFF button 1 three or four 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 all manual shutoff valves in the lines are open If the problem is still not corrected con tact a service center for assistance 10 65 CHECK 2 AUTOMATIC REFRIGERATOR TEMPERATURE CONTROL LIMP MODE OF OPERATION This control system contains a feature where it will con tinue to operate the cooling system in event of a failure of a major operating component If the control cannot read the temperature sensor and control to the preset temperature then the control will run the cooling unit continuously at the energy source available The refrigerator will continue to operate in this mode in definitely or until a new sensor is installed and the sys tem is reset HOW TO USE THE REFRIGERATOR FOOD STORAGE COMPARTMENT The food storage compartment is completely closed and unventilated which is necessary to maintain the required low temperature for food storage Conseq
27. uppl mentai res consultez un installateur ou un service d entretien qualifi ou le fournisseur de gaz Nh Dometic Corporate Office 2320 Industrial Parkway Elkhart IN 46515 USA Service Office Dometic Corporation 2320 Industrial Parkway Elkhart IN 46515 Phone 574 294 2511 822701206 MO FO 0327 French 3309599 003 For Service Center Assistance Call 800 544 4881 CANADA Dometic Distribution Inc 866 Langs Drive Cambridge Ontario N3H 2N7 Canada Phone 519 653 4390 Heater Cover Reigniter Flue baffle Power module cover Protection cover Screw for protection cover u En 5 Drain water hose Flexible cord Manual gas Inlet fittin shutoff valve Refrigerator control panel ON AUTO m OFF LEGEND 1 Main Power Button ON OFF 2 AUTO GAS Mode Selector Button A AUTO Mode Indicator Lamp B CHECK Indicator Lamp GAS Mode Only C Climate Control Switch FIG 2 INSTALLATION GENERAL INSTRUCTION This appliance is designed for storage of foods and storage of frozen foods and making ice 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 th
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