Engine Thermostat Temp
Calibration Terminal Voltage
160°F
170°F
180°F
190°F
200°F
210°F
3.16
2.89
2.63
2.38
2.14
1.91
TEMPERATURE ADJUSTMENT
The Control Module is set from the factory for use with a
180°F Engine Thermostat. If desired, the temperature can
be adjusted using the Multi-Turn Potentiometer on the
Control Module.
Reference Diagram #9
1. Using a standard Multimeter (set on
voltage).
DC
2. Connect the negative lead of the Multimeter to the
Negative (-) terminal on the Control Module.
3. Then connect the Positive (+) lead of the Multimeter
to the calibration terminal on the Control Module.
4. Using a small screwdriver turn the Multi-Turn
Potentiometer on the Control Module until the
Multimeter reads the desired voltage.
5. Using a 3/32” Allen Wrench, Reinstall the Control
Module cover.
VEHICLE TESTING
1. Before you start the vehicle, make sure all wires are safely zip tied and away from any moving parts.
2. Start the vehicle.
3. If the Manual Override function is being used, turn on the A/C or Manual Switch. Electric Fan(s) should start running
immediately.
4. Turn off the Manual Override or A/C function & allow the engine to warm up.
5. If the electric fan does not turn on or you feel that it is not set correctly, check all connections and refer to the “Temperature
Adjustment” Section above.
6. Once you have the fan cycling on and off using the control module, take the vehicle for a short test drive. For personal
preference, some additional adjustment may still be necessary.
Diagram #9
Factory Setting
Adjustment:
One complete revolution equals 3 1/2°F
To increase Temperature - turn Potentiometer Clockwise
To Decrease Temperature - turn Potentiometer Counter Clockwise
Warning:
Installation of accessories should only be undertaken by those with mechanical knowledge and are familiar with working on
vehicles. Always use eye protection (goggles, safety glasses or shield). Park the vehicle in a well lit area, on level ground and apply the
parking brake. Only work on a cold vehicle that has been sitting overnight, failure to do so will result in severe burns and injury. Before starting
the vehicle, make sure no tools or any other items are left under hood that could interfere with or be drawn into moving parts of the engine.
Failure to follow instructions can lead to severe damage and personal injury.
( age 4
P
)
