The standard golf cart battery has a rating of approximately
185
-
205 ampere hours. When two of these batteries are con
-
nected in series, the result is 12 volt, D.C. at 185 or 205
ampere hour capacity.
The D.C. supply to the refrigerator is connected to the nega
-
tive post
of
one battery and to the positive post of the other
battery.
The power converter or solid state battery charger shown in
the diagram are essential items for battery operated systems.
The converter is operated on 120 volt, A.C. and should have
output rating of 12.6
-
14.5 volts D.C. at approximately 20
-
50
ampere capacity, dependent upon the manufacture. During
120
volt operation, the converter is used to charge the batter
-
ies
and to operate the D.C. appliances, conserving battery
power. It has the capacity to operate items such as lighting,
water pumps, exhaust fans, and sanitary facilities while main
-
taining or charging the batteries. Charging rate varies from 5-
20 amps/hour.
Your Norcold dual
-
voltage refrigerator automatically switch
-
es from A.C. to D.C. or from D.C. to A.C. When a power sup
-
ply of 120 volts, A.C. is connected to the vehicle, the voltage
selection relay is energized and disconnects the unit from D.C.
operation. This unique feature assures 120
-
volt operation
when available and permits the power converter to concen
-
trate its charging facilities to the batteries and other D.C. ap
-
pliances.
When the A.C. supply is disconnected, the refrigerator auto
-
matically reyerts to D.C. operation. Turning the thermostat
knob to the
off’bosition will prohibit operation on A.C. or D.C.
1.
The thermostat dial is numbered from 1 through
7,
with the
number
7
setting the maximum coldest position. In order to
conserve battery power, it is advisable to set the thermo
-
stat dial at the lowest setting that will provide adequate
refrigeration. This practice will reduce the running time of,
the refrigerator and draw less current from the battery. A
setting of
“3-5” is a normal position.
2. Always operate the refrigerator on
120 volt, A.C. when
available, especially during initial start
-
up or pull
-
down
cycle of the refrigerator. Depending upon the ambient tem
-
perature, the initial start
-
up may require 1
-
2 hours of con
-
tinuous operation before refrigeration temperatures are at
-
tained and unit cycling begins.
3.
Never employ “quick chargers” to the battery unless the
thermostat is set to “off” or the
12-volt, D.C. leads to the
refrigerator are disconnected. Inverter damage will occur if
the high voltage
of
“quick chargers” is permitted to ener
-
gize the D.C. circuitry of the inverter.
4. The use of a commercial 12-volt, D.C. to 120-volt, A.C.
output solid state inverter, convertor, gasoline, or belt-driv-
en generator with 120-volt, A.C. output is not recommend
-
ed for operating the refrigerator unless the manufacturer of
the aforementioned devices guarantee the output voltage
to
be l2O-volts, A.C. plus or minus
10
percent and the fre
-
quency to be
60
hertz plus or minus 1 Hertz. Devices that
cannot meet the specified tolerances do not hold the re
-
quired frequency, provide poor performance of the refriger
-
ator, and damage the resonance springs in the compres
-
sor.
5.
When connecting the refrigerator to the D.C. supply, ob
-
serve the correct polarity.
If
the polarity is reversed (posi
-
tive connected to negative terminal), the in
-
line circuit
breaker will open and the unit will fail to operate. An indicat
-
ing lamp behind the access panel will energize should this
occur. Reconnect leads and reset circuit breaker.
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