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INTRODUCTION
The Auto Charge 20 PIM Battery Charger is a compact completely automatic charger
designed for installation on vehicles with three batteries. Three individual chargers are
provided to charge the three batteries. Voltage is sensed separately for each battery so that
each battery is charged according to its requirements. The total output to the three batteries
is 20 amperes. An ammeter provides continuous indication of the charger output.
Construction of the Auto Charge 20 PIM is extremely rugged to withstand the shock and
vibration normally encountered by vehicle mounted equipment. The unit operates com-
pletely automatically and stops charging the batteries when they are fully charged. There is
no trickle charge and therefore no danger of overcharging and water boil-off. Any parasitic
loads on the battery such as radio, lights, etc., are automatically supplied with current by
the charger.
Any 120 volt loads when plugged into the GFI on the Auto-Charge 20 PIM will be protected
from ground faults. A separate lever operated circuit breaker protects the GFI connected
loads. This circuit breaker may also be use to disconnect these loads from the line. The fuse
on the Auto-Charge 20 PIM protects the charger only.
INSTALLATION
The Auto Charge 20 PIM Automatic Battery Charger should be installed in an area with
adequate ventilation.
1. Mount the charger using the four holes provided for this.
2. Connect the wiring from the batteries to the Output Terminal Strip.
3. Connect the wiring to the batteries. Ring lugs that have been securely crimped, or
soldered, should be used.
4. Double check all wiring before proceeding.
5. Wire the A.C. power to power input terminal strip.
6. Pilot light will light to show that the charger has power.
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