What does AU mean on thermostat?
Au – (AUTO): When auto fan is selected the fan speed will vary depending on the difference between the temperature set-point and the room air temperature. In auto fan the compressor and the fan will cycle On and Off with the thermostat.
What does the fan symbol mean on my thermostat?
The thermostat can be set up for Cooling Mode. When the room temperature is higher than the set point, the thermostat will call for cooling, displaying a Fan Symbol.
What happens when the thermostat fan is set to auto?
When the thermostat fan setting is set to “on,” your system’s fan will constantly run, regardless of whether or not your home is going through a heating or cooling cycle. What are the pros and cons of the fan “on” or “auto” settings? The “auto” setting. Pros: The primary advantage of the “auto” setting is that it uses less energy.
Which is the normal setting for a fan?
This is the normal setting for a system fan. The On position will turn the fan on to run continuously, regardless of whether the heating or cooling system is turned on by the thermostat or not. This is the setting used to move air in your application all the time instead of when the system is running.
Is it better to set the fan to on or off?
Setting the Fan To ON: This is not the setting that is used most often in homes. You may think that this setting is best because it is always better to keep the air moving. The problem is just that the fan is constantly on and running nonstop. If you are energy conscience then you probably don’t want to use this setting.
When does the air conditioner fan turn on auto?
Setting the fan control to “AUTO” will allow the fan to turn on when the air conditioning system (or heating system) are ready to blow cool (or warm) air into the building, and to turn off automatically when cooling or heating are not needed.
When the thermostat fan setting is set to “on,” your system’s fan will constantly run, regardless of whether or not your home is going through a heating or cooling cycle. What are the pros and cons of the fan “on” or “auto” settings? The “auto” setting. Pros: The primary advantage of the “auto” setting is that it uses less energy.
What is the fan setting on a HVAC system?
The fan setting on your thermostat controls your HVAC’s system blower. The blower helps circulate hot or cold air throughout your home until the temperature on the thermostat is reached. There are two settings on your thermostat to control the fan – auto or on.
Setting the fan control to “AUTO” will allow the fan to turn on when the air conditioning system (or heating system) are ready to blow cool (or warm) air into the building, and to turn off automatically when cooling or heating are not needed.
How does the fan work on a Honeywell thermostat?
The FAN selection key has two or three positions: Auto, On, and on select models, Circ (Circulate). The Auto position will allow the system fan to operate whenever the heating or cooling system is turned on by the thermostat. The fan will not blow air unless there is a call from the system.
