REQUIRED CONNECTIONS
1. Disconnect vehicle battery.
2. Attach the positive (+) terminal to a low-amp
12-volt positive (+) power source (such as fuse
box), using the wire provided in the fan kit.
OPTIONAL CONNECTION: Attach the positive
(+) terminal to an ignition source to stop the fan
unit from operating after the entire is tuned off.
3. Connect the “B” terminal to a high-amp 12-volt
positive (+) power source, such as the positive
(+) side of battery or alternator, using the wire
and inline circuit breaker included in kit. Circuit
breaker is marked for proper installation.
4. Connect the “G” terminal to ground (such as
chassis, negative (-) side of battery) using the
wire provided in the kit.
5. With the wire and 3-way connector provided,
splice into the A/C clutch positive (+) wire.
Connect the other end of the wire to the “C”
terminal of the control box. NOTE: Air
conditioning relay activates fan when A/C is
turned on.
6. Adjust thermostat to desired temperature within
180-240° range.
MANUAL SWITCH INSTALLATION OPTION
(permits on/off operation manually).
(Switch not included – Must purchase separately)
1. Attach the “M” terminal to terminal 1 on the
switch.
2. Attach terminal 2 to 12-volt positive (+) source.
3. Attach terminal 3 to ground.
Note: To prevent the fan from thermostat
activation, omit the lead to the positive (+) terminal
of the control box, B, G & M must remain
connected.
BAT
AUX
1 2 3
Control Box Terminals & Connections
Mandatory Connections Optional Connections
12 Volt High Amp Positive
12 Volt Source
Circuit
Breaker 12 Volt Low Amp Source
+ 12 volt low amp source
G Ground
B 12 volt high amp source
C Air conditioning relay Ground
M Manual switch
Ground
(Illuminate switch – not incl.)
3-way
Connector
Control Box
A/C Positive Lead
G
B
CM+
INSTALLATION INSTRUCTIONS
(Fan may be attached to the radiator horizontally or vertically.)
Mount fan with brackets using either the bolt-on or
clamp-on method, and affix the threaded rods and
brackets to the fan accordingly.
NOTE:
•Use star nuts as shown to stabilize the threaded rods.
•The thermostat sensing bulb MUST contact the radiator surface
for accurate temperature readings.
•To avoid damage, do not over-tighten fan to radiator.
IMPORTANT: If not using an illuminated switch, disconnect the switch ground.
Bolt-on Method Clamp-on Method
Radiator
Channel
Thermostat
Sensing Bulb
Radiator
Front
Bracket
Nut
Washer
Threaded
Rod
Star Nut
www.proformparts.com/tech
— CAUTION — FAN BLADES CAN CAUSE INJURY. TO AVOID PERSONAL INJURY,
KEEP CLEAR FROM FAN BLADES. FAN BLADES MAY START AT ANY TIME.
Part #67017,67029
Universal Fan with Thermostat
Part #67015, 67028
15" Mustang Fan with Thermostat (on reverse side)
