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INTRODUCTION
This procedure defines the installation and wiring for the Auto Charge 12 PIM Automatic
Battery Charger. It is suggested that the installer read the entire instruction manual to become
familiar with the tasks involved before starting.
The Auto Charge 12 PIM Automatic Battery Charger is a compact completely automatic
charger designed for installation on vehicles with single battery systems. Remote sensing
permits long lines between the charger and the batteries by compensating for the voltage drop
in the charging wires. An ammeter provides continuous indication of the charger output.
Construction of the Auto Charge 12 PIM is extremely rugged to withstand the shock and
vibration normally encountered by vehicle mounted equipment. The unit operates completely
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 12 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 12 PIM protects the charger only.
INSTALLATION
The Auto Charge 12 PIM Automatic Battery Charger should be installed in an area with
adequate ventilation. A power cord is supplied for connection to 115 volts 60 Hz.
1. Mount the charger using the four holes provided for this.
2. Connect the wiring from the batteries to the Output Terminal Strip. Spade lugs that
have been securely crimped, or soldered, should be used.
3. Double check all wiring before proceeding.
4. Wire the A.C. power line cord to 115 volts.
5. Pilot light will light to show that the charger has power.
6. The ammeter will indicate how much the batteries are charging. A charging current limit of
amperes is factory set.
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