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Dometic RM2652 Operating Instructions Manual Page 12

Dometic refrigerator operating instructions rm2652, rm2852.
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GAS EQUIPMENT ASSEMBLY
NUT
SOLENOID VALVE .
THERMOCOUPLE
INLET FITTING
MANUAL SHUTOFF VALVE .
Shown in open position
SPARK ELECTRODE
PRESSURE TEST PORT .
BURNER TUBE
FIG. 12
BURNER JET .
BURNER MOUNTING SCREW
ELECTRIC EQUIPMENT
MAINTENANCE & SERVICE
The user should be aware of service that must be
CARTRIDGE HEATER
done on a regular schedule to keep the refrigerator
The heat necessary for the operation of an absorption
operating properly. The service should only be per-
cooling unit is supplied by an electric heater mounted in
formed by a qualified technician who is familiar with
a pocket of the boiler system.
LP gas systems and refrigerators.
These models are equipped with one electric heater for
120 volt AC.
1. REFRIGERATOR REMOVAL
To replace the heater proceed as follows:
Before working on the refrigerator, make sure the AC
1. Disconnect the wall plug, and the 12 volt wires.
voltage and DC voltage leads are disconnected. Shut
2. Remove the power module cover see FIG. 1.
off the gas supply at the LP tank. Disconnect the gas
supply line at the rear of the refrigerator, see FIG. 1.
3. Disconnect the heater leads.
Always use a back up wrench when loosening and tight-
4. With a pair of pliers unfold the lug holding the lid of
ening connections.
the boiler casing and open the lid.
Cap the gas supply line, loosen the screws anchoring
5. Remove some insulation wool so that the heater is
the refrigerator to the enclosure and slide the refrigera-
accessible.
tor out of the compartment.
6. Turn and lift the heater out of its pocket.
When replacing the refrigerator make sure that the seal-
7. Fit the new heater into the pocket.
ing strips are properly positioned.
8. Connect the leads and put on the power module
Replacement is the reverse of removal. Check all con-
cover.
nections for gas leaks.
Refer to section INSTALLATION, page 4 to 8.
9. Reset the insulation and close the lid of the boiler.
2. PERIODIC MAINTENANCE
FUSES
To keep your Dometic refrigerator operating efficiently
These models are equipped with 2 fuses, one for the
and safely, periodic inspection and cleaning of several
refrigerator control system, and one for the AC cartridge
components once or twice a year is recommended.
heater. (See table below).
A. It is important to keep the area at the back of the
To replace fuse(s) proceed as follows.
refrigerator clean. Check the lower vent, upper vent
1. Disconnect the wall plug, and the 12 volt wires.
and area between these openings for any obstruc-
2. Remove the power module cover. See FIG. 1.
tions such as bird/insect nests, spider webs, etc.
3. Snap the fuse out of the fuse holder.
Clean the coils on the back of the refrigerator. Use a
4. Fit a new fuse in to the fuse holder.
soft bristled brush to dust off the coils.
5. Replace the power module cover.
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
Control system
3 Amp
twice a year, but should only be done by a qualified ser-
AC heater
5 Amp
viceman who is familiar with LP gas systems and refrig-
erators.
12

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