How To Wire High Low Switch On A Attic Fan

Run a black wire from the low speed post marked on the rocker switch to the marked low speed line on the fan motor and a red wire between the high speed posts on the rocker switch and fan motor.

How to wire high low switch on a attic fan.

The load is then routed to the fan using either the black or red of a 3 wire. Here are 3 tips to help. 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. The attic fan has 2 speeds.

If you are trying to switch the speed on the roof mount cooler then you should use a cooler wall switch. The louvers in front of the fan located in the attic open by the wind generated by the fan i e. In many instances the low and high speed coils share an external wire. So depending on which is energized you get either a high or low.

Determine the fan switch location. 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 line comes from the timer to the common of the three way switch.

High low common and ground going to the cooler. 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 process of wiring an attic fan involves the power source and switch location wiring connections to the switch and wiring connections to the fan. There should be 4 wires.

Install the switch box and switch. At least some fans that use a high low switch use a 3 way switch. Find a live receptacle for the power source.