Dometic RM7732, RM7030 service manual Burner, Flue Baffle, Internal Wiring, Flue Tube

Page 24

DIAGNOSTIC SERVICE MANUAL

DOMETIC® RM7030/RM7732 Refrigerators

7.4BURNER

The burner is a slotted metal tube located below the flue tube on the cooling unit. It should be level, and the slots in the burner should be directly below the flue tube. The burner should be cleaned periodically, at least once a year. To clean the burner, remove from the refrigerator and check for any foreign residue that could cause a deflection of the gas flow or the flame. Next, soak the burner in an alcohol based solvent and allow to air dry. After cleaning, reinstall in the refrigerator.

7.5FLUE BAFFLE

The flue baffle is designed to concentrate the heat (from the gas flame) at a certain area of the flue tube. It should be cleaned periodically, at least once a year. To clean, remove from the flue tube and check for any damage, then clean thoroughly.

The length of the flue baffle assembly (flue baffle and wire) should be 39 inches on RM7030; 40 inches on RM7732. The flue baffle itself should measure 13/16 inch wide and 6 inches long on RM7030 and RM7732. The proper position of the baffle above the burner is 1 inch.

7.6FLUE CAP (RM7030 ONLY)

The flue cap is located at the top of the flue tube and is attached with a screw. It must be properly attached or flame outage could occur.

B.12 Volt DC Connection

Connection is made to the main terminal block. The refrigerator must be connected to the battery circuit with two wires of adequate capacity to avoid voltage drop.

The wire gauge should be a minimum of 14 gauge.

RM7030 (Poduct No. 921890201 & 921890301)

C.Ignition Lock Connection

In order for the circuit board to perform certain functions, it must receive a signal when the vehicle engine is running. The signal wire (16 gauge mini- mum) should originate at the run terminal of the ignition switch and connect to the "IGN Lock" posi- tion on the refrigerator terminal block.

Do not use the body or chassis of the vehicle as a substitute for either of the two conductors. No other electrical equipment or lighting should be connected to the refrigerator circuit.

8.2INTERNAL WIRING

Check all wires at the connectors to be sure of a proper and tight connection. Also verify the refrigerator is wired per the wiring diagram for the exact model you are working on. See the following typical wiring diagrams. NOTE: Improper wiring at the lower circuit board could cause erratic operation and lower circuit board failure.

7.7FLUE TUBE

The flue is a component of the cooling unit. It must be cleaned periodically, at least once a year. To clean, remove flue cap and flue baffle, then cover the burner and clean by using a flue brush, Domet- ic Part No. 0151404001. If the flue tube becomes coated with scale or residue from combustion of LP gas, the efficiency of gas operation decreases.

NOTE: After cleaning be sure to reinstall the flue baffle and flue cap.

FLUE

CAP

FLUE TUBE

SECTION 8

WIRING

8.1EXTERNAL WIRING A. 120 Volts AC Connection

The refrigerator is equipped with a three-prong (grounded) plug for 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.

(Wiring diagrams continued on next page)

21

Page 23 Page 25
Image 24
Page 23 Page 25
Contents Foreword Contents Wiring OtherICE Maker ICE Maker ComponentsSymptom Cause Refer to Step Refrigerator Section RM7030 Refrigerator SectionSymptom Cause Refer to Step C,DSymptom Cause Refer to Step ICE Maker Section AES Fully Automatic Mode LP GAS Delay ModeOperation LP GAS OperationAES Display Panel AES Mode Volts AC Operation Flame Failure During LP GAS OperationLOW Voltage Monitor ThermostatGAS Mode Standby Mode of OperationAuto Mode RM7732 Refrigerator OperationDescription of Operating Modes To Shut OFF the RefrigeratorAC Voltage Requirements Accomponents Heating ElementDC Voltage Requirements DC ComponentsThermistor Adjuster ThermistorSolenoid Valve Igniter High Voltage CableON-OFF Switch FusesUpper Circuit Board AES Function Switch AC Mode Lamp and SwitchGAS Function Lamp AES Function LampDelay Mode Lamp and Switch GAS Mode Lamp and SwitchGAS Flame Warning Lamp Diagnostic Mode Lower Circuit BoardRM7030 Product No & RM7732 Door Switch LP GAS Requirements ElectrodeClimate Control Heater Test PortLP GAS Components Manual GASOrifice ThermocoupleWiring Internal WiringBurner Flue BaffleTypical Wiring Diagram for Volts AC RM7732 Typical Wiring Diagram Other Securing the Refrigerator Ambient Temperature Door PositionSmooth FIT, Proper Seal Cooling UnitInterior Liner Seal to Frame ICE Maker Operation ICE Maker ComponentsMold Heater ICE EjectorMold Switches Shutoff ARMTiming Motor Water ValveSchematics on Pages 32 Through ICE Maker AssemblyDometic RM7030/RM7732 Refrigerators Dometic RM7030/RM7732 Refrigerators Water Fill Adjustment ICE Maker OtherICE Maker Typical Wiring Diagram Water Supply

RM7030, RM7732 specifications

The Dometic RM7732 and RM7030 are two innovative refrigeration solutions designed for those who enjoy outdoor adventures such as camping, RVing, and boating. These refrigerators are engineered to provide reliable cooling performance while prioritizing energy efficiency and ease of use.

The Dometic RM7732 is a three-way refrigerator that operates on 12V DC, 110V AC, and propane. Its versatility makes it an ideal choice for those who may not always have access to an electric power source. With a capacity of 7.3 cubic feet, it can hold a substantial amount of food and beverages, making it perfect for extended trips. The RM7732 also boasts an impressive temperature range, allowing it to maintain optimal cooling conditions even in varying outdoor temperatures. Its sleek design includes a reversible door, providing flexibility in installation and use.

On the other hand, the Dometic RM7030 is a double-door refrigerator that combines style with functionality. This model also supports three-way operation: propane, 12V DC, and 110V AC. It offers a slightly smaller capacity than the RM7732 but is still equipped to handle the needs of a small family or group. One of its standout features is its efficient absorption cooling technology, which ensures that the refrigerator operates quietly, making it an excellent choice for nighttime use.

Both models feature an electronic ignition system that simplifies the process of starting the propane function. The intuitive control panel on each unit allows users to easily select the preferred power source and adjust the temperature settings. Energy-efficient LED lighting inside the refrigerators enhances visibility while consuming minimal power.

Dometic has incorporated advanced insulation materials in both the RM7732 and RM7030 to reduce energy consumption, ensuring that food stays cooled even under high ambient temperatures. The sturdy construction is designed to withstand the rigors of outdoor use, and the units are built to last.

In summary, the Dometic RM7732 and RM7030 refrigerators are excellent choices for outdoor enthusiasts seeking reliable, versatile, and energy-efficient cooling solutions. With their range of power options, impressive capacities, and user-friendly features, they are well-equipped to handle the demands of any adventure while keeping your provisions fresh and cool.
Top Page Image Contents