800.261.3602
Revised 07/18
Description
FRONT SIDE OF CONTROLLER
4 MOUNTING BRACKET SCREWS: Bracket clamps the wall paneling between faceplate
and brackets, NO screws to come loose.
BACKLIT LCD DISPLAY: 3 DIGITS 0.50” tall for easy reading.
LED SELECTION INDICAT ORS: Lit red & green LED indicates which position is selected.
BATTERY/SOLAR STATUS READING:
Battery: Voltage, battery & temperature.
Solar: Panel voltage, charge Amps & Amp hours.
Charge Status: Top off.
SELECT BUTTON: Allows user to scroll thru LED positions.
CHARGE STATUS/ TOP-OFF POSITION:
Charge Status LED color indicates following:
OFF: Night mode - Solar voltage insufficient to charge battery(s).
GREEN: Controller is in the float stage of the four stage charge routine.
RED: Controller is in the bulk/absorption stage of the charge routine.
BLINKING GREEN: Controller is in the auto bulk/absorption stage as a result of
battery voltage dropping below 13.0V while in float stage for 5 minutes.
ORANGE: Equalization Charge.
BACK SIDE OF CONTROLLER
DISPLAYS MICRO PROCESSOR: Microprocessor controls all displays and read-out
functions.
4 MOUNTING BRACKET SCREWS: Bracket clamps the wall paneling between face plate
and brackets, no screw to come loose.
MOUNTING OPENING SIZE:
Minimum opening size is 4.10” x 3.40” +/-0.10”
Maximum opening size is 4.20” x 3.45” +/-0.10”
BATTERY/SOLAR PANEL CONNECTIONS: 4 hex screw lugs that will accept a 6-12 Awg
wire. (Batt + Solar + Solar – and Batt-). Torque and Hex screws to 16 inch pounds
(1.8N.m) recommend using NoAlox on Battery & Solar connections to avoid oxidation
problem due to moisture.
BATTERY TEMPERATURE SENSOR CONNECTORS: Input has two functions:
When the controller is powered with the shorting shunt on the sensor connector, the
SunExplorer III allows the installer/ user to select the battery type, when the shunt is
removed the controller stores the battery type selected.
When a LM335T-x sensor is mounted in the battery box and connected to the controller, the
charge rate is adjusted based on temperature of the battery.
2