How To Wire High Low Switch On A Attic Fan

The process of wiring an attic fan involves the power source and switch location wiring connections to the switch and wiring connections to the fan.

How to wire high low switch on a attic fan.

High low common and ground going to the cooler. In many instances the low and high speed coils share an external wire. Since you have to choose between the speeds using a two speed motor switch it s impossible for both coils to become energized simultaneously. Use wire nuts to connect the black wire from the 12 2 wire to the black or red wire in the attic fan the white wire to the white wire in the attic fan and the two ground wires.

The attic fan has 2 speeds. The load is then routed to the fan using either the black or red of a 3 wire. Find a live receptacle for the power source. Location of power supply and switch.

So depending on which is energized you get either a high or low. Here are 3 tips to help. I d start by examining your high low switch to see how it works. The dedicated cooler wall switch have 5 position that can operate the fan on hi and low and fan with pump on hi and low.

The louvers in front of the fan located in the attic open by the wind generated by the fan i e. Additionally the low speed coil is typically supplied by a red wire while the high speed coil is fed by a black wire. At least some fans that use a high low switch use a 3 way switch. If you are trying to switch the speed on the roof mount cooler then you should use a cooler wall switch.

There should be 4 wires. Determine the fan switch location. These louvers are not energized but the aforementioned louvers in the 2nd floor ceiling open via an electrified switch that when energized with electric pulls the louvers open.