SPAL FAN-PWM-V3 User Manual

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10
Air Conditioning Input
(continued)
2. If your A/C system has a trinary switch, you may use it to trigger your
cooling fans. This is the preferred way to control your cooling fans as the
fan operation is based on the pressure of the coolant in the A/C system.
Though the A/C pump may not be running, the pressure of the A/C system
may require operation of the cooling fans to properly cool the A/C condenser.
A
IR CONDITIONING COMPRESSOR
Blue Wire from FAN-PWM
A/C
Thermostat
Existing wire(s) from
evaporator wiring harness
Y
T
B
A
T
E
R
Ground
+12VDC
FUSE
5A
A/C TRINARY DIAGRAM

SPAL FAN-PWM-V3 Specifications

General

Brand	SPAL
Model	FAN-PWM-V3
Category	Controller
Language	English