Electrical Connection - Dometic RM 2553 Installation And Operating Instructions Manual

ELECTRICAL CONNECTION

230-240 Volts AC Connection
The electrical installation must be carried out in a proper
and durable manner, taking into account all relevant regu-
lations and codes of practice.
Check that the voltage stated on the data plate is the
same as the mains voltage in use (230-240V).
For mains voltage operation, it is important that the
circuit to and in the caravan is effectively earthed.
The refrigerator is equipped with a three-prong (ground-
ing) plug for your 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. The free length of the cord is 1.8 m
and therefore recommended that the receptacle be lo-
cated to the left side of the refrigerator (viewed from the
rear) and approximately 150 mm from the floor. (See
FIG. 9). This allows easy access through the vent door.
The cord should be routed to avoid direct contact with
the burner cover, flue cover or any other components
that could damage the cord insulation.
230-240 Volt AC
receptacle
150 mm
FIG. 9
12 Volts DC Connection
The connection is made to the terminal block marked
"12 volts DC heater", located at the bottom left corner on
the back of the refrigerator cabinet. (See FIG. 1).
The refrigerator must be connected to the battery circuit
with two wires of adequate capacity to avoid voltage drop.
The wire gauge should be chosen with consideration to
the wire length in accordance with the table below.
To ensure safe operation, the positive lead must be fit-
ted with a fuse rated at 20 amps.
Correct polarity must be observed when connecting to
the 12 V DC supply.
6
DO NOT use the chassis or vehicle frame as one of the
conductors. Connect two wires at the refrigerator and
route to the 12 V DC supply.
The refrigerator will draw 15 amps at 12 volt DC.
MAXIMUM TOTAL CONDUCTOR WIRE LENGTH
(in metre)
Wire length
5 m
8 m
The connections must be clean, tight and free from cor-
rosion. If not, a resulting voltage drop will cause a de-
creased cooling capacity.
! CAUTION
DO NOT operate the refrigerator on 12 volt when
the vehicle is parked. The amperage draw of the
12-volt DC heating element can discharge a bat-
tery in a very short time. The installation of a 12-
volt DC operated refrigerator requires a relay to
be installed on the tow vehicle or in the cara-
van. The relay will automatically shut off the 12
volt DC power to the refrigerator when the igni-
tion is turned off. (See FIG. below).
Breaker Ignition
point coil
Battery
min.wire
size
2
4 mm
2
6 mm
Switch key
Relay
Refrigerator