I am trying to hook up a Hayden Fan control switch #3647 so I can specify at what temp the fans come on.
Going by the attached instructions it says to hook the green wire to the A/C clutch wire so that fan comes on when A/C is on. Where is the A/C clutch wire located and what color wire is it?
My reason for asking is if you take a look at the attached picture of my under hood relay box it does not look like the diagrams I have seen for this car. It looks like I am missing a relay. Or is the light green relay to the left of the empty space the A/C clutch relay?
Also, it says to connect the orange wire to the fan power wire and that for dual fan installation you can hook the blue wire to the 2nd fans power wire. I know there are two fans in the shroud but since BOTH come on together but just at different speeds, is there a 2nd power wire for the blue wire or do I just leave it off?
Since the low speed circuit is activated when A/C is on, should the orange wire be somehow wired to the high speed circuit?
Or, should I follow the steps below where the user is using the same type of fan controller with a Taurus dual speed fan.
To hook up the Taurus dual speed fan you need to add a single pole double throw (SPDT) relay* with contacts rated for at least 35 amps. The relay has five terminals labeled: common (C), normally open (NO), normally closed (NC) and two for the relay coil, ground and +12vdc.
*Note: Let’s call this relay extra.
Hook up the Hayden fan control per the instructions except for the two power wires that go to the two fan motors.
Connect the wire for fan #1 (org) to the (C) terminal on the relay extra. Connect the wire for fan #2 (blue) to the +12vdc terminal on the relay extra. From the Taurus fan you have three wires: ground, low speed, high speed. *(see note)
Connect the low speed wire to the (NC) terminal on the relay extra. Connect the high speed wire to the (NO) terminal on the relay extra. Connect your grounds from the fan and the relay extra to a good clean spot on the chassis and your ready to go.
When the controller energizes fan #1 power goes through the relay to the low speed wire on the fan. When the controller energizes fan #2 the relay is energized and switches the power from the low speed to the high. Connected this way the fan can never get power to both the high and low speeds at the same time burning out the motor.
*Different year fans had different wire colors so you have to figure out which is which by testing with a battery or checking with a Ford dealer parts guy
Going by the attached instructions it says to hook the green wire to the A/C clutch wire so that fan comes on when A/C is on. Where is the A/C clutch wire located and what color wire is it?
My reason for asking is if you take a look at the attached picture of my under hood relay box it does not look like the diagrams I have seen for this car. It looks like I am missing a relay. Or is the light green relay to the left of the empty space the A/C clutch relay?
Also, it says to connect the orange wire to the fan power wire and that for dual fan installation you can hook the blue wire to the 2nd fans power wire. I know there are two fans in the shroud but since BOTH come on together but just at different speeds, is there a 2nd power wire for the blue wire or do I just leave it off?
Since the low speed circuit is activated when A/C is on, should the orange wire be somehow wired to the high speed circuit?
Or, should I follow the steps below where the user is using the same type of fan controller with a Taurus dual speed fan.
To hook up the Taurus dual speed fan you need to add a single pole double throw (SPDT) relay* with contacts rated for at least 35 amps. The relay has five terminals labeled: common (C), normally open (NO), normally closed (NC) and two for the relay coil, ground and +12vdc.
*Note: Let’s call this relay extra.
Hook up the Hayden fan control per the instructions except for the two power wires that go to the two fan motors.
Connect the wire for fan #1 (org) to the (C) terminal on the relay extra. Connect the wire for fan #2 (blue) to the +12vdc terminal on the relay extra. From the Taurus fan you have three wires: ground, low speed, high speed. *(see note)
Connect the low speed wire to the (NC) terminal on the relay extra. Connect the high speed wire to the (NO) terminal on the relay extra. Connect your grounds from the fan and the relay extra to a good clean spot on the chassis and your ready to go.
When the controller energizes fan #1 power goes through the relay to the low speed wire on the fan. When the controller energizes fan #2 the relay is energized and switches the power from the low speed to the high. Connected this way the fan can never get power to both the high and low speeds at the same time burning out the motor.
*Different year fans had different wire colors so you have to figure out which is which by testing with a battery or checking with a Ford dealer parts guy
