Where do you put the temperature sensor on an electric fan?
The temperature probe should be plugged into the system where the coolant is hottest—generally, the thermostat housing, in the coolant passages adjacent to it, or in the water jacket of the cylinder heads.
Where is radiator fan switch located?
Locate the cooling fan switch near the thermostat housing on the left side of engine behind the distributor assembly. The switch wire colors should be green and black. Disconnect the wire terminal at the fan switch. Allow the engine to reach a coolant temperature of 196-203°F (91-95°C).
How does a temp switch work on a fan relay?
Also that temp switch supplies the switchable ground connection to the fan relay. Since you have the gauge and the fan wired in parallel, the relay may be picking up a sneak path to ground through the autometer gauge and which is then turning the relay on, effectively bypassing the temp swich altogether.
How does a coolant temp sensor work on a fan?
Coolant Temp Sensor – LH head. I have used a t-stat housing mounted fan switch with excellent results. Sounds like you hooked up a gauge to a temperature switch. That’s a problem right there. A gauge won’t run off a temperature switch. Also that temp switch supplies the switchable ground connection to the fan relay.
Where are the thermal switches on a three phase motor?
In three-phase motors 2 thermal switches connected in series are placed between the phases of the motor. In that way all three phases are in contact with a thermal switch. Thermal switches can be retrofitted on the coil end, but the result is an increased reaction time.
What should the temperature be for a motor overload relay?
Depending on the thermal switch manufacturer, the curve changes. TN is typically around 150 – 160°C. Connection of a three-phase motor with built-in thermal switch and overload relay. Protection according to the IEC 60034-11 standard: TP 111 (slow overload).