increase the efficiency of the system
A fan or cooler relay is used in electrical furnace to change the blower speed to the blank speed for cooling
In an electric furnace, a fan relay typically changes the blower speed to a lower setting for cooling. This reduced speed helps to circulate air more gently, allowing for better heat dissipation and preventing overheating of the furnace components. By operating at a lower speed, the blower can provide effective cooling while maintaining comfort in the surrounding space.
It could have any size heating furnace, the two are unrelated except for the size blower used in the furnace to support the 3 ton cooling system. But the fact remains you can get a 3 ton blower in 50,000 btu furnace, a 100,00 btu furnace and anything in between.
There should be only one blower to move the air. The unit will have a coil for cooling and a heat exchanger.
If you have a 2 stage furnace (hi fire & lo fire) then the blower will run on lo speed in lo fire & hi speed in hi fire and in AC mode. If it`s a single stage furnace lo speed for heat and hi speed for cooling.
furnace equipped with FD(force draft) and ID(induced draft) fan /blower are called balanced draft system.Fd used to regulate combustion airflow while ID used to regulate furnace pressures type of furnace operate slightly below ATM pressure .
The furnace filter goes into the furnace with the airflow arrow pointing towards the blower motor.
To change the blower speed on your furnace, locate the blower motor and adjust the speed settings on the control panel. This can usually be done by turning a dial or pressing buttons to increase or decrease the speed. Refer to the furnace manual for specific instructions on how to adjust the blower speed safely.
Your furnace blower may not be shutting off and not producing heat due to issues with the thermostat, the blower motor, or the furnace's control board. It is recommended to check these components and consult a professional HVAC technician for further diagnosis and repair.
Yes it is. It contains the blower.
Watts
no