Rev. 01-27-10 99975 page 2 of 2
INSTALLATION (CONTINUED FROM PAGE 1)
ADJUSTING THE TEMPERATURE CONTROL
1. Attach the temperature control knob to the control box.
2. Turn the knob clockwise completely.
3. Idle the vehicle, observe the temperature of the vehicle. (Use the vehicles gauge)
4. When the temperature of the vehicle reaches slightly above normal, turn the control knob counter-
clockwise until the fan turns on. From here on, the fan should activate at this temperature setting.
Adjust as necessary according to your vehicle needs.
OPTIONAL CONNECTIONS
Manual Switch (not included) - Allows manual operation of the fan.
(
This step is based on Flex-a-lite’s manual switch part #31148, other switches will cause this
unit to fail).
1. Connect the “M” terminal to terminal 1 on the switch.
2. Attach terminal 2 of the switch to a 12V positive (+) source.
3. Attach terminal 3 of the switch to ground, in order to illuminate the switch.
*WARNING: If not using
Flex-a-lite's optional
illuminated switch (PN
#31148), you must
disconnect the switch
ground.
Note: To stop the fan from activating thermostatically, omit the lead to the “+” terminal of the control
box. “B”, “G”, & “M” must remain connected.
The Flex-a-lite Limited Warranty
Flex-a-lite Consolidated, 7213-45th St. Ct. E. Fife, WA 98424, Telephone No. 253-922-2700, warrants to the original purchasing user, that all Flex-a-lite products to be free of defects
in material and workmanship for a period of 365 days (1 year) from date of purchase. Flex-a-lite products failing within 365 days (1 year) from date of purchase may be returned to the
factory through the point of purchase, transportation charges prepaid. If, on inspection, cause of failure is determined to be defective material or workmanship and not by misuse,
accidental or improper installation, Flex-a-lite will replace the fan free of charge, transportation prepaid. Flex-a-lite will not be liable for incidental, progressive or consequential
damages. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. This warranty gives
you specific legal rights and you may have other rights, which vary from state to state. The Flex-a-lite warranty is in compliance with the Magnuson-Moss Warranty Act of 1975.
WIRING INSTRUCTIONS; #168 with out controls
1. Wire the fan motor to power source (control unit or switch and relay if desired). Connect the
Blue
wire from the fan motor to a 12v. positive (+) source. Connect the
Black motor wire to a ground
(-) source.
NOTE: Failure to do this will result in incorrect operation and damage to the fan motor!
2. Connect an inline fuse holder; Be shure to connect a fuse holder in-line with the positive (+)
power wire to protect the fan motor and your vehicle's electrical system from damage.
