Revotec fan wiring diagram - Both fanatics and relays have identical earthing point. Handiest thing i've noticed is that the rad doesnt have continuity with the car body, should this be a problem>? Shoudl i run an extra earth to it?. A easy two twine thermostat have to sit among the second one relay and earth - ie it triggers the relay on the earth facet - and the switched effective deliver need to be connected to fan 2; see amended diagram under. You've got just got the thermostat on the wrong side of the relay, an smooth mistake to make. Venture: replacing the mechanical cooling fan with a sucker electric powered fan. I used to be not content with the small 12" enthusiasts advertised through the triumph companies, however there is a clearance hassle between the radiator and the the front frame rail (about 3.Five"). So preference of a fan to mount behind the radiator is crucial. I rewired the deliver (direct from battery) to relay after which relay to every fan individually with 1 =ve wore for each fan and an earth for every fan. It then might now not paintings with out blowing a fuse. Connecting it straight up they both come on and quicker than before with the authentic smaller wiring. Iirc when i set up my electric powered enthusiasts on my closing 90 i used the switch (two way) as on or vehicle and while the transfer become in auto the thermostat became on and rancid the fanatics through the temp sensor inside the rad. When the transfer turned into on then the wiring strapped out the thermostat and placed the electricity instantly onto the lovers.
If i dosconnect the fans the wiring all works good enough, and fuse not blown (no load). The twin on works as does the thermostatically managed alternative. That is 12v out of each wires (one for each fan) for dual on and 12v out of the one wire (once engine is hot enough) for the thermo managed wire. No, the thermostat ought to act as a easy switch for the relay while in the 'b' role as according to the authentic circuit diagram. The diode between the 2 fans would simplest be wished in case you wished fan 2 most effective to return on beneath control of the thermostat - thinking about it, it's quite an elegant option as you would not want enthusiasts on for normal on-avenue use.