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Ventilation
This refrigerator is made for a built-in installation.
The following maximum clearance are necessary for correct
ventilation.
Bottom
Each Side
Top
Rear
Correct ventilation is necessary for the correct operation of the
refrigerator and to increase the life of the refrigerator cooling unit.
Ventilation allows the natural air fl ow that is necessary for good
refrigeration. Cooler air comes in through the left side of the vent,
goes around the refrigerator coils where it removes the excess
heat from the refrigerator components, and goes out through the
right side of the vent. If this air fl ow is blocked or decreased, the
refrigerator will not cool correctly.
CAUTION:
The refrigerator has a built-in vent at the top of the
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cabinet. Make sure that the air fl ow through this vent is not blocked in any
way. Blockage of air through this vent can cause:
•
shortened life of the refrigerator cooling unit.
•
poor cooling performance of the refrigerator.
•
continuous operation of the refrigerator.
•
fast battery discharge.
•
void of the refrigerator warranty.
Electrical Connections
This refrigerator operates on DC electrical sources. Operation out
of these limits may damage the refrigerator's electrical circuit parts
and will void the warranty.
Make no changes to any of the electrical wiring supplied with the
refrigerator. Any changes that you would make to the electrical
wiring will void the warranty.
Connect the 12/24 volts DC supply
To reduce the risk of electrical interference from other DC
appliances and induction from voltage spikes:
■ The refrigerator must have an independent 12/24 volt DC sup-
ply.
■ Route the DC power supply wires including the fuse directly
from the battery to the refrigerator.
■ Twist the DC power supply wires from the battery to the refrig-
erator.
www.norcold.com
0 inch min.
0 inch max.
0 inch min.
0 inch max.
0 inch min.
0 inch max.
0 inch min.
1 .5 inch max.
NOTE:
The electronic unit is protected against reverse
battery connection. For protection during installation, a
fuse must be mounted in the + cable as close to the battery
as possible. A 15A fuse for the 12V and a 15A fuse for
the 24V circuits are recommended. If the main switch is
used, it should be rated to a current of min. 20A. The wire
dimensions must be observed. Avoid extra junctions in the
power supply system to prevent voltage drop from affecting
the battery protection setting.
CAUTION:
Do not use a converter or a battery charger to supply
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the DC power to the refrigerator. These devices do not supply fi ltered DC
power. When using a converter or a battery charger, make sure a battery
is in-line between them and the refrigerator.
As the distance from the vehicle battery to the refrigerator
increases, the correct AWG wire size also increases. If the wire is
too small for the distance, a voltage drop occurs. The voltage drop
decreases the cooling performance of the refrigerator.
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WARNING:
Use only the recommended wire size.
1. Measure the distance from the vehicle battery to the refrigerator
to determine the minimum wire size to use.
Distance
0 -12 feet
12-20 feet
more than 20 feet
2. To protect the DC power supply wiring, install a 15 Amp fuse or
circuit breaker in the positive (+) DC power supply wire as close
to the battery as possible.
3. Connect the DC power supply wires. (See Fig. 6).
NOTE:
If the DC power supply wires are attached
incorrectly, the refrigerator will no operate.
■ Connect the positive (+) DC power supply lead to the red
wire [99] of the refrigerator.
■ Connect the negative (-) DC power supply lead to the black
wire [224] of the refrigerator.
■ Make sure that:
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Minimum Wire Size
#12 AWG min.
#10 AWG min.
#8 AWG min.
SERVICE MANUAL
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