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Dometic RM24A User Manual

Dometic RM24A
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SERVICE
United States
SALES OFFICES
DOMETIC SALES CORP.
Zone 1
2320 Industrial Parkway
Elkhart. IN 46515
(219)
295.5226
DOMETIC
SALES
CORP .
Zone II
2920 Avenue
“E”
East
Arlington, TX 76011
(81
7)
649.5726
DOMETIC
SALES CORP.
Zone III
14441 Bonelli St.
City of Industry, CA 91746
(818 )
968-9431
Canada
DOMETIC DISTRIBUTION INC
866 Langs Drive
CambrIdge. Ontario
N3H
2N7
Canada
(519 )
653-4390
Edition
1
Publication No
4528-E/Service
May
1973
DSC
#
648
c
REFRIGERATOR
for
recrea
t
ional vehicles
RM24A RM36C
SERVICE MANUAL
RM46 RM4
7
RM66
RM67
When
ordering
SPARE PARTS
always
state:
MODEL. QUANTITY. PART NUMBER. DESCRIPTION
For
electric
details
also:
VOLTAGE. WATTAGE
1
RM76 RM77
1
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Dometic RM24A Specifications

General IconGeneral
BrandDometic
ModelRM24A
CategoryRefrigerator
LanguageEnglish

Summary

1. TECHNICAL FEATURES

RM24 Model Specifics

Details specific features for the RM24 model, including casing and door.

General Equipment & Cabinet

Covers common equipment like flame failure devices and cabinet insulation.

2. INSTALLATION INSTRUCTIONS

General Installation Guidelines

Overview of installation requirements, certifications, and safety codes.

Ventilation, Gas, and Electrical Connections

Covers air circulation needs, gas supply hook-up, and electrical power connections.

Special Hints & Approved Ventilation Kits

Provides installation tips and lists recommended ventilation kit options.

MEASUREMENTS

Cabinet and Recess Dimensions

Provides cabinet and required recess sizes in inches and millimeters.

ELECTRICAL AND GAS SETUP

Grounding, Fusing, and Gas Line Safety

Covers electrical grounding, proper fusing, and gas line installation safety.

3. UNUSED OR ABANDONED REFRIGERATORS

Safe Discarding Procedures

Instructions for safely discarding old units, including door removal.

4. TO CHANGE THE DOOR PANELS

Door Panel Dimensions and Replacement

Lists dimensions for different panels and explains the replacement process.

5. REPLACEMENT OF DOOR GASKET ON RM24

RM24 Door Gasket Replacement

Step-by-step guide to replace the door gasket on the RM24 model.

6. REPLACEMENT OF EVAPORATOR DOOR

Door Gasket Replacement (Other Models)

Instructions for replacing door gaskets on RM36C and other models.

Evaporator Door & Gasket Replacement (RM36C)

Steps to replace the evaporator door and gasket on the RM36C model.

Evaporator Door Replacement (RM46, RM47, RM66, RM67)

Instructions for replacing evaporator doors on specific models.

Evaporator Door Gasket Replacement (RM46, RM47, RM66, RM67)

Steps for replacing evaporator door gaskets on specific models.

7. DOOR HINGE CONVERSION

RM24 Door Reversal Procedure

Steps to reverse the door hinging from right to left-hand on RM24.

Door Hinge Conversion (RM36C Models)

Instructions for reversing door hinging on RM36C, RM46, RM47, RM66, RM67.

Door Hinge Conversion (RM76, RM77 Models)

Instructions for reversing door hinging on RM76 and RM77 models.

8. THE ABSORPTION REFRIGERATOR SYSTEM

Sealed System Construction & Cooling Unit Diagrams

Describes the sealed system's components and refrigerant, and illustrates cooling units.

9. OPERATION ANALYSIS FOR COOLING UNIT

Cooling Unit Performance Factors & Troubleshooting

Discusses factors affecting performance and issues like blockages and weak mixtures.

Unit Filling Valve and Leak Detection

Information on the filling valve and ammonia leak detection.

10. COOLING UNIT REPLACEMENT RM24

RM24 Cooling Unit Removal Procedure

Detailed steps for removing the cooling unit on RM24 models.

COOLING UNIT REPLACEMENT (RM36C-RM67)

Refrigerator and Cooling Unit Removal

Steps to remove the refrigerator from its recess and its cooling unit.

ABSORPTION UNIT REPLACEMENT (RM76, RM77)

RM76/RM77 Absorption Unit Removal Steps

Detailed procedure for removing the absorption unit from RM76 and RM77 models.

11. GAS EQUIPMENT FOR RM24

RM24 Gas Equipment Parts Identification

Lists and identifies all gas equipment parts for the RM24 model.

12. DUAL ELECTRIC EQUIPMENT 12/110V FOR RM24

RM24 Dual Electric Equipment Identification

Lists and identifies electrical components for RM24 operation.

13. GAS/ELECTRIC EQUIPMENT (RM36C-RM77)

Gas & Electric Equipment Components

Lists components for gas and electric operation for various models.

12V Operation Components

Lists components specifically for 12V operation.

14. THE GAS THERMOSTAT V-35

Gas Thermostat Components & Cleaning

Describes thermostat parts and procedures for cleaning its valve and seat.

Lost Thermostat Charge Diagnosis

How to identify and address a loss of charge in the thermostat.

15. THE GAS BURNER

Gas Burner Description and Jet Sizes

Details burner construction, jet sizes, and corresponding heat input.

16. TEE FLUE SYSTEM

Flue System Components & Baffle Placement

Lists flue parts and the importance of correct baffle placement.

Flue Obstruction Cleaning Procedure

Procedure for cleaning flue blockages to ensure proper draft.

17. THERMOELECTRIC FLAME FAILURE SAFETY DEVICE

Safety Device Components & Operation

Lists parts and describes how the safety device functions to prevent gas leaks.

REPLACEMENT OF THE THERMO-ELEMENT AND SAFETY VALVE MAGNET

Safety Device Component Replacements

Procedures for replacing the thermo-element and safety valve magnet.

18. REPLACEMENT OF HEATER

Electric Heater Replacement Procedure

Steps to replace the electric heater, including disconnections and reassembly.

Heater Specifications for Models

Lists correct heaters for each model, including voltage, amps, and watts.

19. WIRING DIAGRAMS

RM24 Electrical Wiring Diagram

Shows the electrical connections for RM24 models operating on 12V/110V.

RM36C-RM77 Electrical Wiring Diagrams

Shows connections for RM36C-RM77 on 110V and 12V/110V.

20. PRESSURE MEASURING DEVICES

Gas Pressure Check and Measurement

How to check gas pressure using a water U gauge or low pressure gauge.

21. OPERATING RECOMMENDATIONS

Key Factors for Optimal Refrigeration

Notes that correct installation and adjustments are key for performance.

22. STARTING THE REFRIGERATOR RM24

RM24 Control Location and Operation

Identifies control locations and explains the gas/electric interlock function.

23. GAS OPERATION

RM24 Gas Start-up Procedure

Step-by-step guide to starting the refrigerator on gas.

24. ELECTRIC OPERATION

RM24 Electric Operation Modes

Explains operation on 12V DC or 110V AC power sources.

25. REFRIGERATOR START-UP (RM36C-RM77)

Starting Procedure for RM36C and Others

General instructions for starting these models on gas or electric.

26. GAS OPERATION (RM36C-RM77)

Gas Start-up for RM36C and Others

Steps for starting the refrigerator on gas for these models.

27. ELECTRIC OPERATION (RM36C-RM77)

Electric Operation for RM36C and Others

Steps for operating the refrigerator on electric power.

28. LEVELING

Importance and Checking of Refrigerator Level

Explains why leveling is crucial for cooling and how to check it.

29. TEMPERATURE CONTROL (THERMOSTAT)

Thermostat Setting Effects and Adjustment

How settings affect refrigeration and guidance on adjusting the control.

30. THE THERMOSTAT CAPILWRY TUBE

Capillary Tube Placement Importance

Explains correct insertion for proper burner operation and temperature control.

31. STORING FOOD IN THE REFRIGERATOR

Food Storage Best Practices

Tips for air circulation, covering food, and avoiding odors.

32. CLEANING

Cabinet Interior Cleaning Procedure

Steps for cleaning the inside of the refrigerator, including shelves and gaskets.

33. ICE CUBES

Ice Freezing Tips

Advice on water temperature for faster ice freezing.

34. TRAVEL LATCH

Travel Latch Function Description

Describes the purpose of the travel latch for securing the door during transit.

35. TO SHUT OFF THE CABINET

Cabinet Shut-off Procedure

How to turn off the unit when refrigeration is not required for extended periods.

36. DOOR SEAL

Ensuring Proper Door Seal Function

Importance of a good seal and how to check and correct sealing issues.

37. ODORS INSIDE THE REFRIGERATOR

Causes of Internal Refrigerator Odors

Identifies improper food storage and infrequent cleaning as odor sources.

38. ODORS FROM FUMES

External Odors from Gas Leaks & Burner Issues

Causes related to gas leaks, burner flame issues, or flue problems.

39. FLAME BLOWS OUT

Troubleshooting Flame Blow-out Conditions

Solutions for the flame extinguishing in windy conditions or persistence.

40. THE FLINT LIGHTER RM24

RM24 Flint Lighter Flint Replacement

How to replace the flint in the RM24 model's lighter.

REPLACEMENT OF THE SERRATED WHEEL - RM24

RM24 Serrated Wheel Replacement

Procedure for replacing the worn serrated wheel on the RM24 lighter.

41. PIEZO LIGHTER

Piezo Lighter Operation

Describes the piezo crystal lighting device and its function.

Piezo Lighter Component Replacements

Steps to replace the electrode or the complete lighter unit.

42. TROUBLE SHOOTING - ELECTRIC OPERATED REFRIGERATORS

Electric Refrigerator Cooling Issues

Addresses unsatisfactory cooling and refrigerator being too cold.

43. TROUBLE SHOOTING - GAS OPERATED REFRIGERATORS

Gas Refrigerator Cooling Issues

Addresses unsatisfactory cooling and refrigerator being too cold on gas.

44 FAILED REFRIGERATING UNIT

Factors for Determining Unit Failure

Lists potential causes for a failed refrigerating unit, including leveling and ventilation.

45. PACKING OF DEFECTIVE UNITS

Procedure for Packing Defective Units

Guidance on returning faulty units safely to prevent transit damage.

46. OPERATION ANALYSIS FOR ELECTRIC REFRIGERATORS

Electric Refrigerator Symptom Analysis

Table linking symptoms to causes for electric operation.

47. OPERATION ANALYSIS FOR LP GAS REFRIGERATORS

LP Gas Refrigerator Symptom Analysis

Table linking symptoms to causes for gas operation.

48. PERIODIC MAINTENANCE

Burner Assembly Cleaning and Adjustment

Steps for regular cleaning and adjustment of the burner assembly.

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