Flex-a-Lite 31149 Temp. Control Module - Manual (Page 2)

1g. Use the zip ties provided to secure the wires and prevent them from interfering with fan blades,
belts, and pulleys in the engine compartment. Reconnect the battery and insert the fuse provided.
1e. (Optional) For air conditioning control (if desired) connect the "C" terminal on the control module
to the
positive wire that triggers the A/C compressor using the small diameter green (14 AWG) wire.
Using a voltmeter, determine which wire coming from the compressor is the positive trigger wire. Use
the 3-way connector (included) to tap into this wire and send a signal to the fan control module. The
fan will cycle on and off with the A/C clutch when the A/C is turned on.
1f. (Optional) For manual switch operation, use Flex-a-lite p/n 31148. Connect the switch as shown
on the wiring diagram (previous page). Connect the "M" terminal on the control module to the "1"
terminal on the switch. Connect the "2" terminal on the switch to a positive 12v power source. Con-
nect terminal "3" on the switch to a good ground (for switch illumination).
NOTE: To prevent ther-
mostatic activation (if only manual switch operation is desired), omit the lead to the "+" termi-
nal of the control box. "B", "G", "M+" and "M-" must remain connected. If not using a Flex-a-
lite manual switch, do not connect a ground wire to the switch!
Step 2: Insert the temperature probe into the radiator fins
Locate the inlet hose from the engine to the radiator. Remove the black insulator cap and insert the
temp. probe through the radiator fins near the inlet hose. Reinstall the black insulator cap.
Step 3: Adjust the temperature control knob on the control box
If you disconnected any hoses or drained coolant to install the fan, reconnect the hoses and refill the
radiator. Press the control knob (included in wiring kit) onto the control box shaft. Turn the knob
clockwise until it stops. Start the engine and allow it to idle. Using a hand held thermometer (posi-
tioned near the inlet hose) or the vehicle's temperature guage, monitor the temperature. When the
coolant temp. is slightly above normal (or desired temp.), turn the knob counter-clockwise just until
the fan turns on. From now on, the fan should activate at this temperature setting. Adjust as neces-
sary to maintain desired temperature.
Install temp. probe near inlet hose... then replace the insulator cap.
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 limitaion 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.
10-03-05 part no. 99842 Page 2 of 2