Payne Furnace Blower CFM? - http://www.hvacmechanic.com/ Forums
Original message
| lcoleman
 |  "Payne Furnace Blower CFM?"
, posted Tue 26 Oct 13:18  
Can anyone help me find the CFM of my Payne furnace? I have called Payne and the local service contractor that they gave me. Here is the Model and Serial numbers.
Model = PG8UAA048135
Serial = 3499A09027
Thanks in advance
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Replies:
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| xenos
Webmaster 
| "Re(1):Payne Furnace Blower CFM?" , posted Tue 26 Oct 19:29
That unit has what Carrier refers to as their 4 ton blower (1600 CFM) . However the actual Cfm has more to due with the duct work then the furnace.
Xenos.
The best way to escape a problem is to solve it.
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| Freon
| "Re(1):Payne Furnace Blower CFM?" , posted Tue 26 Oct 15:13
Here's a guess based on this PG8UAA manual http://www.gogeisel.com/geiselonline/support/Payne/PG8U_Gas_Furnace.pdf .
I'm guessing you have a 48000BTU furnace. If that's correct, and you have a 3 speed blower motor, I'd venture to guess the high speed is 1600 cfm, enough for a 4 ton coil. Assuming the rpm of the motor for each speed is 1075, 925, and 775, you can see the approximate cfm would be 1600, 1380 and 1150 cfm respectively.
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