Dometic RM66 Service Manual

SERVICEUnited StatesSALES OFFICESDOMETIC SALES CORP.Zone 12320 Industrial ParkwayElkhart. IN 46515(219) 295.5226DOMETIC SALES CORP .Zone II2920 Avenue

10MEASUREMENTSrCabinet and recess dimensions in inches.RefrigeratormodelsRM24RM36CRM46, RM47RM66, RM67 RM76, RM77CabinetOveralldimensonsA B CDepth Wid

11GroundingIt is imperative, for personal safety, thatall refrigerators equipped with a three-prong(Grounding) plug be used only with properlygrounded

12If for any reason the gas cock lever has come off position in the driving plasticdisc,check alignment, Proceed as follows:1. Turn downwards the driv

13Combustible Material StorageCombustible material such as ether, gasoline, hexane, naphtha, benzine, butane,propane, alcohols, acitone, benzol, lacqu

14To change the door panel. Model RM24.A.B.c.D.E.F.G.H.Remove the top decoration strip (2)with its two screws (1). pull outwardon the top of the door

155.REPLACEMENT OF DOOR GASKET ON RM24The construction of the door complete is an aluminium extruded door frame foamedin place with the door pan and m

16Replacement of door gasket on modelsRM36C, RM46, RM47, RM66, RM67, RM76, RM771. Remove the door shelves.2. Unscrew the upper hinge bolt, incline the

17CAUTION: It is of great importance that the screwdriver is applied in front ofone of the plastic tongues which hold the inner panel and the doorfron

18REPLACEMENT OF EVAPORATOR DOOR GASKET ONRM46, RM47, RM66, RM671. Remove the door as previously described.2.Unscrew the hinge plates (A fig. 29).3. P

19To change the door from right to left-hand opening and vice versa on modelsRM36C, RM46, RM47, RM66, RM671. Unscrew and remove upper hinge bolt (A fi

2Service Instructions for Domtic Absorption RefrigeratorsThe absorption refrigerators described in this manual are primarily for installationin recre

208.THE ABSORPTION REFRIGERATOR SYSTEMSealed system constructionThe sealed system of the absorption refrigerator is constructed of velded steelpiping

21Cooling Unit 315Agas/electrrc operationfor model RN47with defrosting deviceCooling Unit 317Agas/electric operationfor model RM46without defrosting d

229.OPERATION ANALYSIS FOR COOLING UNITIt is obviously important that all external factors affecting the unit should bechecked properly before a unit

2310.COOLING UNIT REPLACEMENT RM24If it is necessary to replace the cooling unit, proceed as follows:1.2.3.4.5.6.7.8.9.10.11.12.13.14.Turn off the gas

24COOLING UN IT REPLACEMENT- RM36C, RM46, RM47, RM66, RM67Remove the refrigerator from its recess as follows:1.2.3.4.5.6.7.Check that refrigerator is

257,8.9.10.11.12.13.CAUTION :1. Be sure to apply sealing permagum “A” (fig. 44 and fig. 45) on the unit mountingplate and on the high evaporator inlet

26Fig. 46Replacement of absorption unit on models RM76, RM77Whenfrom1.2.3.4.replacing the absorption unit it will be necessary to remove the refrigera

275.6.7.8.9.10.11.12.Fig. 47Fig. 48Remove the connection block cover on the side of the boiler case and disconnectthe two electrical wires where they

2811. GAS EQUIPMENT FOR RM24 1 2 3 4Fig. 49ItemNo.DescriptionItemNO.1 S.I.T. thermo-electric flame failure device2 Lock nut3 Pressure test connection4

Item DescriptionNo.12345678910111213141516171819202122Heater, 12/11OV, 95W, TYPE 173Terminal blockItemCable clampNo lThermostat knobTerminal block cov

1.TECHNICAL FEATURESRM24The cabinet has a so called “Full Finish Casing”and can be used freestanding orbuilt-in. RM24 is a compact refrigerator, ideal

3013. GAS/ELECTRIC EQUIPMENT FOR RM36C, RM46, RM47, RM66, RM67, RM76, RM77(See Fig. 51)GAS EQUIPMENT PARTS1. Flue baffle2. Blow out protection3. Burn

31 Fig. 51

32THE GAS THERMOSTAT V- 35The gas thermostat V-35 consists of three main parts:Be 1 lowssys MechanismValve housing, see fig. 52 and fig. BY-PASS SCREW

33THERMOSTAT REPLACEMENTTo replace the thermos tat,remove capillary from its clamp on the fresh foodevaporator fins, Remove the two sealing plugs,one

34TEE FLUE SYSTEMThe flue system consists of the following parts:1) Central tube (built-in part of the boiler system and cannot be removed)2) Flue3) F

17.THERMOELECTRIC FAILURE SAFETY DEVICE (see fig, 58)AllAllmodels equipped with an automatic failure device.SFig. 58gas operated or combined gas/ele

36REPLACEMENT OF ELEMENT OF THE THERMOELECTRICFLAME FAILURE SAFETY Fig. 59replace the thermo-element of the thermoelectric flame failure safety (see

REPLACEMENT OF HEATERThe electric heater is positioned in a pocket which is welded to the boiler tube,A wire clip holds the heater securely in the poc

38 WIRING DIAGRAMSfor ThermostatTerminal12 Black 110 VoltsHeating elementTerminalblockSwitchFig. forRM36C, RM46, RM47RM66, RM67, RM76,RM77HeaterThe

20.PRESSURE DEVICESThe pressure at the burner should be checked at the time the refrigerator is startedup, After connecting the pressure gauge, set

4DoorAll models will be delivered with right hand door hinging, but it is possible forthe customer to change the door hinging from right to left hand.

40Unsatisfactory refrigeration also results from improper operation by the user dueto misunderstanding or carelessness.Each refrigerator contains a pa

1.Turn off the gas valve (C), its handle then be pointing avay from the backof the cabinet.Turn the voltage change switch (A) to the required setting

3. Turn the thermostat knob G to setting 4. When the refrigerator is equipped for 110 volts and 12 volt operation theturning movement of the knob A sh

43STORING FOOD IN THE 1.2.3.4.5.Proper refrigeration requiresfree air circulation within the food storage partment. Restricted air circulation within

442.3.Failure of the door gasket to contact the front of the cabinet can be determinedvisually when the door is closed.Run a piece of thin cardboard a

45Fig. Fig. 76To replace flint, follov these steps:1. Remove the2. Remove the3. Remove capouter burner shield by means of loosening the screws A

46The Piezo lighter does not normally need any maintenance.If by any reason the electrode or the lighter must be replaced, proceed as follows:Replacem

TROUBLE SHOOTING ELECTRIC OPERATED REFRIGERATORSCauseRemedyThe refrigerator not cool satisfactorilyThennoatat at wrong setting.Air circulation over

48 TROUBLE SHOOTING GAS OPERATED REFRIGERATORSCauseThe refrigerator does not cool satisfactorilyAir circulation over cooling unitrestricted.Refrigerat

4944FAILED REFRIGERATING UNITThere are many things to consider before determining that the unit is faulty.1. Leveling of the refrigerator2. Ventilatio

5VentilationThe installation shall be made in such a manner as to separate the combustion systemfrom the living space of the recreational vehicle. Ope

5046. OPERATION ANALYSIS FOR REFRIGERATORS OPERATING ON ELECTRICITYSYMPTOM CAUSEpNote: It will be noted in this tabulationthat several causes can be r

The correct flame, at setting.,should have a bright at thebase of the flame. See Fig. 79. OPERATION ANALYSIS FOR CAUSEXXXX0XXXNote: It will

5248. PERIODIC MAINTENANCEOnce or twice a year depending on use, it is recommendedburner assembly, Proceed as follows:1.2.3.4.5.6.7.8.9.to clean and a

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6BREAKERPOINTCAUTIONRELAY REFR.I--Do not operate therefrigerator on 12 Voltwhen the vehicle is parked.You will runout of battery in a rather short t

7Special hintsThe refrigerator must be installed in a sub-stantial enclosure and must be level. Aspirit Level is supplied with each refriger-ator and

8When installing the refrigerators full consideration should be taken to the sealinginstructions and the specified minimum clearances and ventilation

9Kit No. 2 - RM36Ccomprising:Upper side vent (Dometic RM122)Lover side vent (Dometic RM2217)(see Fig. 5)Kit No. 3- RM36C, RM46, RM47RM66, RM67, RM76,