Is it possible to control the speed of the fan on the central A/C unit

air-conditioningthermostat

I have one of those medium sized AC-units (don't know the model name at the moment) and a very basic Honeywell thermostat that the installers put in when the house was built.

However, there doesn't seem to be much options. I can only turn the fan on or off, AC on or off, set the schedule, and the desired temp.

Is there a way to control the fan speed (It's quite loud and I'm planning on renting the basement out… with the AC unit right next to the basement window) like those portable AC units? Is this dependent on the thermostat or the AC unit itself?

Best Answer

Condensing Unit Fan

If you're talking about controlling the speed of the fan in the outside condensing unit, the answer is no.

Condensing Unit

The job of this fan, is to remove heat from the refrigerant flowing through the system. Reducing the speed of the fan would reduce the cooling effectiveness of the system, and could lead to damage to, or premature failure of the system.

Blower Fan

If you're talking about reducing the speed of the blower fan (the fan that circulates air throughout the house), the answer is no again.

The job of this fan is to add heat to the refrigerant flowing through the system. Reducing the speed of the fan would reduce the cooling effectiveness of the system, and could lead to damage to, or premature failure of the system.