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Old 05-23-2010, 10:42 PM   #1
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Air handler Blower Motor

I would like to know if there will be an increase in my electrical power bill if I leave the air handler fan blower motor running 24/7 in the ON position instead of AUTO on the thermostat.


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Old 05-24-2010, 05:03 AM   #2
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If its a PSC blower, yes, and by a fair amount.

If its a VS blower, yes, but not much.


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Old 05-24-2010, 06:34 AM   #3
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Yep. the average PSC motor uses about 500 watts = 1/2 kilowatt x your rate /kwh. $1/day in some places and more in others. A ECM VS motor uses about 75% less (a lot less)! If the motor has 3-5 wires coming from it then it is PSC if it has a wiring harness with 16 wires from the motor to a control board them it is ECM. Post the make and model # of the air handler and we may know what it is.
"Cut it twice and it is still too short".

Last edited by yuri; 05-24-2010 at 06:37 AM.
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