Flex-a-Lite 115 Installation Instruction

Electric Cooling Fan

Models 115 & 117

Installation Instructions

Radiator Support Channel Or Frame Installation

1. Attach frame mounting brackets to fan using the 4 3/4’’ self tapping screw.

2. Position fan to desired location, Mark holes on radiator channels or frame.

3. Rotate fan blades to ensure that they are free of obstructions.

4. On the marked hole locations, drill 13/64" holes.

5. Secure the fan to radiator using 1/4" self tapping screws.

6. Check again to be sure the fan blades rotate freely.

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Wiring Instructions Model 115

NOTE: Model 117 does not include a fan control unit; skip to page 3 of instructions.

FOLLOW THESE INSTRUCTIONS CAREFULLY TO AVOID DAMAGING THE CONTROL
UNIT, FAN MOTORS, AND YOUR VEHICLE! WHEN CRIMPING WIRES, ALWAYS USE

A QUALITY CRIMPING TOOL (DO NOT USE PLIERS OR OTHER DEVICES).

Step 1: Locate mounting point for the control unit

Locate a mounting point for the control box near inlet side of the radiator. The control unit needs
to be placed within about 18" of radiator inlet hose. The inner fender next to the radiator may be a
convenient location. Attach the control unit using the screws provided.

Step 2: Wire the fan motors (refer to Wiring Diagram, below)

Using the blue connectors provided, attach a length of the thick (12 AWG) red wire to the red mo­tor wires at fan. Attach a length of the thick (12 AWG) black wire to the black motor wires at the fan.
Once the fan is in place, these will attach to the control unit. Be sure to leave enough wire to reach
the control unit.

WIRING DIAGRAM - MODEL 115 (PULLER CONFIGURATION)

NOTE: For pusher configuration, flip the fan blade over and
reverse motor wire polarity (black motor wire positive, red motor
wire negative).

3. Connect the fan wires to the control unit
Now connect the fan motor wires to the control unit. Using blue female connectors provided, connect the
red wire you attached to the fan motor wire in Step 2 to the "M+" terminal. Connect the black wire to
the "M-" terminal on the control unit. NOTE: Failure to do this will result in incorrect operation and

damage to fan motors!

4. Connect power leads

Disconnect the battery negative lead for safety before completing wiring. Determine the length needed
to run thick red and black wire from the control unit to the battery terminals and trim appropriately. Crimp
a large ring connector to one end of the each wire and connect the black wire to the negative (-) battery
terminal, but do not connect the red wire yet. Using butt connectors, connect the fuse holder provided
inline with the red wire. The fuse and fuse holder will protect the fan motors and your vehicle's electrical
system from damage. Attach the red wire to the "B" terminal and the black wire to the "G" terminal on
the control unit.

5. Ignition controlled power source
Locate fuse box. Find a circuit that is "hot " when the key is in the "ON" position. NOTE: DO NOT use
the DRL or brake/taillight fuse! Attach the included fuse tap to fuse. Attach a female connector to
the thin red wire included and connect to the fuse tap. Trim the wire so that it will reach the control unit.
Attach pink female connector to end of wire and connect to the "+" terminal on the control unit.

6. Fan operation with air conditioning (if equipped)

Locate the wires coming from the A/C compressor. Determine which wire is ground and which is positive
by using a volt meter. Connect the positive wire to the supplied thin green wire by use of a piggyback
connector. Determine length needed to reach the control unit and trim to length. Attach a pink female
connector to the end of the wire and attach it to the "C" terminal on the control unit.

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