Flex-a-Lite 330 Dual Electric Fan with Thermostatic Control and A/C Relay - Manual (Page 2)

Step 1: Locate mounting point for control
Locate a mounting point for control near inlet side of radiator. The control needs to be placed within
18” of radiator inlet hose. You may want to mount next to radiator on fender well. Mount the control
using the screws provided.
Step 2: Wire the fan motors (refer to wiring diagram, below)
Using the yellow butt connectors provided, attach a length of the thick (12 AWG) red wire to the black
motor wires at fan. Attach a length of the thick (12 AWG) black wire to the red motor wires at the fan.
Once the fan is in place, these will attach to the control module. If mounting the control somewhere in
the engine compartment, leave enough wire to reach the control module.
Note: Wiring for puller configuration is shown. For pusher configuration, fan blades must be flipped
over (see page 1) and wiring to motors reversed (large red to red motor wires, black to black motor
wires).
Step 3: Connect the wires crimped in Step 2 to the control module using supplied female connectors
(Red wire to the “
M+” terminal and black wire to the “M-” terminal).
Step 4: Disconnect the negative battery lead for safety while finishing the wiring. Use the thick red
wire to run power directly from the battery positive (+) terminal to the “
B” terminal on the control mod-
ule. Connect the fuse holder in-line with this wire, as shown, but do not insert the fuse yet. Use the
blue female, ring, and butt connectors provided.
Step 5: Use the thick black wire to run from the negative (-) battery terminal to the “G” terminal on the
control module. Use the blue female connector and ring connector provided.
Step 6: Use the thin (18 AWG) red wire to connect the “+” terminal on the control module. Connect
the other end to a positive power source.
NOTE: Attaching this wire to an ignition-controlled
source will shut off the fan when the engine is turned off. Attach this wire to an uninterrupted
(always hot) power source to allow the fan to continue running after the engine is shut off.
Use the blue female connector and fuse taps (included) if necessary.
Step 7: (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 thin (18 AWG) green wire. Us-
ing 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.
Wiring Instructions
Rev. 03-09-12 #98330 Page 2 of 4