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  2. The SPAL Electric Fan Controller (FAN-PWM) will Pulse Width Modulate a single SPAL electric fan allowing the unit to vary the fan speed based on engine temperature. A second fan can be added with the use of an additional fan wiring kit (SPAL part number FRH). The second fan will not be PWM controlled; it will be ON/OFF only. Low Setting

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  3. the FAN-PWM. This SPAL Electric Fan Controller (FAN-PWM) will vary the speed of the fan based on engine temperature by using Pulse Width Modulation tech-nology. A second fan can be added but requires the use of an additional relay to control the secondary fan (SPAL part number FRH). The secondary fan will not be variable speed; it will be ON ...

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  4. A second fan can be added but requires the use of an additional relay to control the secondary fan (SPAL part number FRH). The secondary fan will not be variable speed; it will be ON/OFF only. Page 6 Operation ENTR PRG STAT FAN Front View of PWM The FAN-PWM is equipped with 2 LED’s: a ‘STAT’ LED and a ‘FAN’ LED.

  5. Mar 1, 2023 · I got a harness and relay kit from CE Auto Electric to power my dual 11 inch Spal fans. Very nice kit. I use this one here: 70A Dual Fan Relay Kit – EFI Applications, Negative Trigger.

  6. May 19, 2012 · The first fan is variable speed as needed until you reach your upper temp setting and the controller bumps fan 1 to full speed along with # 2 fan full speed until you get down to your low setting where it modulates fan # 1's speed again.

  7. May 4, 2016 · This sensor runs the auxiliary fan which is a TWO STAGE FAN, while the Spal is a SINGLE STAGE FAN. You have a choice here: ONE: you can wire the grey wire into the green and black wire which will activate the Spal fan when the coolant temperature hits the low temp threshold.

  8. The SPAL Electric Fan Controller (FAN-PWM) will Pulse Width Modulate a single SPAL electric fan allowing the unit to vary the fan speed based on engine temperature. A second fan can be added with the use of an additional fan wiring kit (SPAL part number FRH).

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