4-14 Appliances
450 LXi
Owner Manual
~ 4-14-30 ~
Rev. “C”
4-14.14.9 Electric Equipment
HEATERS
The heat necessary for the operation of an absorption cooling unit is supplied by an electric heater mounted in a pocket of
the boiler system.
This model is equipped with a series connected twin heater.
To replace the heater proceed as follows:
Disconnect the wall plug, and the 12 volt wires.
Remove the protection cover.
Remove the power module cover.
Disconnect the heater leads.
With a pair of pliers unfold the lug holding the lid of the boiler casing and open the lid.
Remove some insulation wool so that the heater is accessible.
Turn and lift the heater out of its pocket.
Fit the new heater into the pocket.
Connect the leads and put on the power module cover.
Reset the insulation and close the lid of the boiler.
Replace the protection cover.
FUSES
This model is equipped with 2 fuses, one for the refrigerator control system and one for AC cartridge heater. (see table
below).
To replace fuses proceed as follows:
Disconnect the wall plug, and the 12 volt wires.
Remove the power module cover. (
see Fig. 1
)
Snap the fuse out of the fuse holder.
Fit a new fuse in to the fuse holder.
Replace the power module cover.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
1.
2.
3.
4.
5.
Control System
3 Amp
AC Heater
5 Amp
4-14.14.10 Maintenance and Service
The user should be aware of service that must be done on a regular schedule to keep the refrigerator operating properly. The
service should only be performed by qualifi ed technicians who are familiar with LP gas systems and refrigerators.
REFRIGERATOR REMOVAL
Before working on the refrigerator, make sure the AC voltage and DC voltage leads are disconnected. Shut off the gas supply.
Disconnect the gas supply line at the rear of the refrigerator (
see Fig. 1
). Always use a back up wrench when loosening and
tightening this connection. Cap the gas supply line loosen the screws anchoring the refrigerator to the enclosure and slide
the refrigerator out of the compartment.
When replacing the refrigerator make sure that the sealing strips are properly positioned.
Replacement is the reverse of removal. Check all connections for gas leaks.
PERIODIC MAINTENANCE
To keep your Dometic refrigerator operating effi ciently and safely, periodic inspection and cleaning of several components
once or twice a year is recommended.
It is important to keep the area at the back of the refrigerator clean. Check the lower vent, upper vent and area between
these openings for any obstructions such as bird/insect nests, spider webs, etc. Clean the coils on the back of the
refrigerator. Use a soft bristled brush to dust off the coils.
It is important to keep the refrigerator area free from combustible material, gasoline and other fl ammable vapors or liquids.
A.
Summary of Contents for 450 LXi
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