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B)TDometic
SERVICE
United States
SERVICE OFFICE
DOMETIC SALES CORP
509 South Poplar
L a G ra ng e , IN 46761
REFRIGERATOR
SERVICE MANUAL
RM182 B
2
Edition Whe n spare parts always state:
QUANTITY * PART NUMBER * DESCRIPTION
Fo r c details also:
August 1982
VOLTAGE -WATTAGE
DSC
#651
electri
MODEL.
ordering
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TABLE OF CONTENTS A. Installation Instructions Page 2 B. Instructions For Use 182 B Page 3 General Instructions Page 4 Sealed Combustion Unit Page 4 Ventilator (improved cooling performance) Page 4 Fuse - 12 Volt Circuit Page 4 Steps To Take When The Refrigerator Has Not Been Used For A Long Period Page 4 Pilot Outage Page 4 Periodic Maintenance Page 4 Removal And Installation Of Refrigerator Page 5 D. Component Replacement Page 6 Replacing The Electric Heating Element Page 6 Replacing Voltage
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INSTRUCT IONS A. INSTALLAT ION The design of this refrigerator has been certified and approved by the American Gas Association and the Canadian GAS Association for Recreational Vehicles. This certification is dependent, however upon proper installation’-and the use of the venting components as shown in these instructions. Installation The installation of the refrigerator must compl y with local codes or in the ab- sence of local codes the following American National Standards and Canadian Stan-
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B. INSTRUCTIONS FOR USE RM182B The Controls : Controls are located at the top of the refrigerator. 1. Control Panel : Fig. 1 Page 1 ___ “A” - Air Pump and Piezo Lighter "B" - Safety Valve "C" _ Volt Operation (12 volt has no thermostat, Thermostat for Gas and 120 the unit runs continously) Voltage Selector Switch Gas Shut-Off Valve Flame Pilot Sight Peep 2. Gas Operation - Lighting the Burner _________ ____________ ____ ___________ 1. Place Voltage Switch "D" (Fig. 1) on position A , then pla
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General Instructions Sealed Combustion Unit The sealed canbustion unit is made up of the burner, a fresh air intake and exhaust pipes, and a vent/air-intake assembly in the wall. The burner unit is completely sealed off’ from the interior of the van by means of the two special inlet and outlet pipes. In the vent /air-intake assembly, fresh air is drawn in one pipe and combusted gases are safely vented to the outside through the other pipe. Ventilator (Cooling Fan) In order to improve the cooling
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C. REMOVAL AND INSTALLATION OF REFRIGERATOR Remova 1 1. Disconnect electrical supply. And make sure the gas supply is shut off at its source. 2. Remove the vent /air-intake assembly on the van wall outside . of the windscreen (B,Fig.2) a. Unscrew three self-tapping screws (A,Fig.2) then remove windscreen and separating plate (C, Fig. 2). b. Unscrew four screws (D,Fig.2) of the fixing plate (E,Fig. 2) and remove fixing plate and gasket (F, Fig. 2) from the caravan wall (G, Fig. 2) to the vent cas
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D. COMPONENT REPLACEMENT RM182B NOTE: For the removal of gas and electrical components and of the refrigerator cooling unit, the refrigerator must be removed from the kitchen cabinet (see chapter C) . 1. Replacing the electric heater _____ 1. Squeeze the heater insulation in direction of arrow (A,Fig. 8) until it clicks open. Pull open the insulation in direction of arrow ( B,Fig. 8) and remove it . 2. Unscrew fixing screw (C, Fig. 8) of the heater and remove the heater from its pocket by pull
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4. Pull off thermostat knob (C, Fig.11) and kn o b (D, Fig.11) of safety device (E, Fig. 11). 5. Unscrew union nut (F, Fig.11) of gas-pipe (G, Fig.11) from flame failure safety device (E, Fig. 11). 6. Remove three cable plug-connections from thermostat (H, Fig.11). 7. Unscrew thermo-coupling (I, Fig.11) from thermo-current adapter (J, Fig.11). 8. Unscrew thermostat (H, Fig.11) from support bracket (K, Fig.11) ( 2 screws ). 9. Unscrew two clips (L, Fig.11) from capillary tube (M, Fig.11). Remove
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8. Replacing the burner-jet ( E Fig. 12) ___ ____ Unscrew union nut (F, Fig. 12) of gas pipe by using a lo mm fork-spanner and a second one (14 mm) to hold counterpart the jet. 2. Unscrew burner jet from the bottom part of gas-burner. 3. Screw in the new burner jet, refit gas pipe. IMPORTANT: The gasket (G, Fig.12) between the lower part of the burner and the burner-jet must be replaced by a new one and carefully posi- tioned to ensure that the burner is properly sealed. 9. Cooling unit re
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lo. Removing the air pump and replacing the piston. ___________ __ _____ _____ 1. Unscrew knob (A, Fig.9) of air pump (K, Fig.9) from the shaft (L, Fig.9). 2. Unscrew air pump ( 4 screws / M, Fig. 9). Unscrew cover of air-pump ( 2 screws / N, Fig. 9). 4. Withdraw shaft, force out retaining disc from the groove, pull off large disc and change joint ring. Reassemble in the reverse order. CAUTION: After all repairs to the gas equipment, the entire gas system must be checked for leaks with soa
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F. TROUBLESHOOTING THE REFRIGERATOR - L.P. GAS CAUSE SYMPTOM NOTE: It will be noted in this guide that several causes ca n for one effect . The real cause or causes should b e determined by the process of elimination, investigating each possible cause, star- ting at the top of the guide and proceeding to the bottom. Gas leaks Inadequate ventilation refrigerator not level Jet orifice clogged The thermocouple tip not in position No contact between thermocouple and safety valve - Faulty safety valv
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G. TROUBLESHOOTING THE REFRIGERATO R - CAUSE SYMPTOM NOTE: It will be noted i n this guide that several causes can be for one effect . The rea l cause or causes shoul d be determined by the process of elimination, investigating each possible cause, star- ting at the top of the guide and proceeding to the bottom. Inadequate ventilation Refrigerator not level Defective heater, wrong voltage or type Voltage not constant Electric connections loose Heater not inserted correctly in its pocket Impro
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A 8 c E Fig. 2 Fig. 1 /- 0 0 C \ I I Fig. 4 Fig. 3 Fig. 6 Fig. 5 -12 - A' @I /-- 13
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Fig. 7 I I I I I I I I I I I I I II I II II II , I IllI ’ II II ‘I II II I! II I 11 ll II II II ._ I A; I I I ‘I I I I .I .I I .I I I I 1 I I Fig. 8 *I .I -1 .I II ,I II II II II .I 11 il it-- II .I ,I
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E D A c B - 1 ,, f . a t-+ I * 1 h n R 1 1 R In Fig. 9 I.1 1, L1--r’ L-J f-l
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C D - I I . % i - 15- Fig.11 1, f-l
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L --. ,,-,--I_ t:i F /- E /- Q Fig.12 -16 - __)
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Fig.14 . . I ’ ’ rl-- - t Fig.15 -17- II
