Important Information On 12 Volt Operation - Norcold 8682 Repair Manual

Figure 5.5
Figure 5.6
IMPORTANT INFORMA-
TION ON 12 VOLT DC
OPERATION (3-Way
models Only)
The 12 volt DC mode is not de-
signed for continuous DC opera-
tion - only for short "intransit" peri-
ods when gas or AC sources are
not available.
The 12 volt DC mode cannot be
used for the initial pull-down of the
refrigerator compartment(s). The
initial cooling operation must be
done in either the GAS or AC
modes. The refrigerator must be
cooled and stabilized before the
DC operation is effective.
Good battery condition is essen-
tial when operating on DC. This
implies an adequate recharging means which can handle the demands of
the refrigerator along with other loads.
The wires from the battery to the refrigerator must be of large enough size to
handle the load. The connections must be clean, tight and free from corrosion.
If not, a resulting voltage drop will cause a decreased cooling capacity.
The following points regarding the DC operation should be considered:
a. Operate the refrigerator in the DC mode only in periods when AC or
GAS operation is unavailable.
b. The DC operation is designed to operate during a short "hold over" pe-
riod, such as a four (4) to six (6) hour period while in transit. The refrig-
erator should not be switched to the DC mode if the food is not com-
pletely chilled.
c. Good battery condition is essential when operating on DC. This implies
an adequate recharging means which can handle the demands of the
refrigerator along with other loads.
d. The wire from the battery to the refrigerator must be of large enough
size to handle the load. The connections must be clean, tight and free
from corrosion. If not, a resulting voltage drop will cause a decreased
cooling capacity.
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