Thread: Twin Thermo Fan set up problems on V8.Pics included

Originally Posted by LOVEMYRANGIE

Switch needs an off temperature which is higher than the thermostat opening temp (88c) so the 95-90 option is the best.

Thats what i was thinking as well.I think i will just go with that option.
Cheers
Chris

OK so i want to go with the 95 on - 90 off option.Using the link below what sensor should i use (part number)?
I need it to fit into my current set up.(Pic is on the first page)

Thermo Fan Switches | Tridon

TFS102 or if you want to do a bit of extra wiring, TFS 103 and wire two fans into a two stage arrangement but you will need to find a plug to suit. Think this one is used by Porsche IIRC.


Using Capitals, the difference between helping your Uncle Jack off a horse or helping your uncle jack off a horse...

I use twin Ford Falcon EL fans controlled by this DCC

New Page 1

The DCController uses a temperature sensor inserted between the fins in the radiator near the radiator outlet. The controller controls the fan speed by use of PWM (pulse width modulation) which is an efficient method of slowly ramping the fan speed up and down, which avoids large current surges that a simple relay control allows. With this controller, you connect to only the high speed connection(s) on the fan(s). You can set the temperature either by small computer style jumpers on the controller itself, or by using the optional potentiometer which can be mounted inside the car.

I ended up getting the TFS 111 because thats what fit and it had a 95 on and 90 off.Now this is where my lack of wiring know how comes in.
I connected the original grey wire from the Spal set up to the new sensor
and the fans didnt switch on.What wire should be going to the new TFS 111 sensor? If you look at the first page you will see the wiring diagram for the Spal set up.
So confused

And i forgot this.

Originally Posted by SPROVER

I ended up getting the TFS 111 because thats what fit and it had a 95 on and 90 off.Now this is where my lack of wiring know how comes in.
I connected the original grey wire from the Spal set up to the new sensor
and the fans didnt switch on.What wire should be going to the new TFS 111 sensor? If you look at the first page you will see the wiring diagram for the Spal set up.
So confused

Positive feed to sensor connection 1, then from sensor connection 2 to fan positive, then fan neg to earth.

That's the easiest.