Installation manual

Install Battery #2 Temperature Sensor
Your Max Charge MC-624 voltage regulator can accomodate a second-
ary battery temperature sensor. Used in conjunction with an optional MC-
TS-B battery temperature sensor, the regulator can monitor temperature
at a secondary battery bank and respond to a battery over-temperature
condition by discontinuing charging.
To install a secondary battery temperature sensor:
1. Connect the temperature sensor to the secondary battery bank fol-
lowing the directions provided for the primary battery temperature
sensor.
2. Plug the positive and negative sensor to the appropriate positive
connector; The RED positive sensor wire should be connected to
the #7 terminal pin.
3. the BLACK negative sensor wire should be connected to terminal
pin #8.
Install Battery #1 Temperature Sensor
Battery #1 temperature sensor circuit is used to monitor primary battery state. With an MC-TS-B battery temperature sen-
sor installed, the regulator can monitor temperature at the primary battery bank, adjust voltage to compensate for battery
temperature and respond to a battery over-temperature condition by discontinuing charging.
To install a #1 battery temperature sensor:
1. Connect the temperature sensor to the secondary battery bank following the directions provided for the primary bat-
tery temperature sensor.
2. Plug the positive and negative sensor to the appropriate positive connector; The RED positive sensor wire should be
connected to the #9 terminal pin. The BLACK negative sensor wire should be connected to terminal pin #10.
Install Dash Lamp
The Max Charge Dash Lamp (#11) terminal provides the ability to activate a visual or audible indicator when the regula-
tor monitors the following conditions: Low system voltage, high system voltage, high alternator temperature, high battery
temperature (temperature conditions are only indicated when appropriate temperature sensors are connected) and no
voltage on stator, indicating that the alternator has failed. When a described condition is detected, the regulator sends the
Dash Lamp terminal from neutral to ground. To utilize the Dash Lamp function:
1. Connect a small LED or incandescent lamp, or an audible (piezo) alert (maximum current ow is 500 mA) to a positive
voltage source.
2. Connect the negative terminal on the lamp or audible alert to the
Dash Lamp terminal on the regulator.
3. When connected, the lamp should ash at regulator start-up to indi-
cate active status.
Install BLACK Ground Wire
The BLACK Ground Wire (#12 in diagram at right) are included in the
four-wire Ford-style plug on the wiring harnessand are factory installed
on regulator packages designated with “H” at the end of the model num-
ber. The other end of the Ground Wire is tted with a ring terminal con-
nector. In most applications, this wire can be connected directly to the
alternator’s ground terminal post. Both alternators and regulators must
be connected to system ground.
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CAUTION: Reversing the polarity of the terminal connections on any of the alternator or battery
temperature sensors can result in invalid sensing and potential damage to alternators, regulator
and/or batteries.