temp rise

Posted by geojr on June 12, 2008, 9:09 pm

Anyone know the formula for measuring cfm on a 3 phase airhandler with 3
phase heaters ( temp rise method ) I know what it is for single phase but
dammed if I can remember what the 3 phase formula is, nor can I find it in
all my old notes :-((( help-- trying to fix a hacked job at an american
legion hall and I need to know the airhandlers cfm cabability--TIA!

Posted by on June 12, 2008, 9:16 pm

>Anyone know the formula for measuring cfm on a 3 phase airhandler with 3
>phase heaters ( temp rise method ) I know what it is for single phase but
>dammed if I can remember what the 3 phase formula is, nor can I find it in
>all my old notes :-((( help-- trying to fix a hacked job at an american
>legion hall and I need to know the airhandlers cfm cabability--TIA!

What do phases have to do with it ? Unless your'e figuring
the power into the elements ?

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Posted by new jersey on June 13, 2008, 3:27 pm

From three phase power source
(E*1.73) * I = W * 3.413 = BTUH
Tony

> Anyone know the formula for measuring cfm on a 3 phase airhandler with 3
> phase heaters ( temp rise method ) I know what it is for single phase but
> dammed if I can remember what the 3 phase formula is, nor can I find it in
> all my old notes :-((( help-- trying to fix a hacked job at an american
> legion hall and I need to know the airhandlers cfm cabability--TIA!
>

Posted by DIMwit on June 13, 2008, 5:34 pm

> From three phase power source
> (E*1.73) * I = W * 3.413 = BTUH
> Tony

>> Anyone know the formula for measuring cfm on a 3 phase airhandler with 3
>> phase heaters ( temp rise method ) I know what it is for single phase but
>> dammed if I can remember what the 3 phase formula is, nor can I find it
>> in all my old notes :-((( help-- trying to fix a hacked job at an
>> american legion hall and I need to know the airhandlers cfm
>> cabability--TIA!

yeah yeah yeah, tony

and XsubL=2PiFL. now are you inducted or impeded, or maybe even impotent?
any reaction? resistance is futile.

Posted by Noon-Air on June 13, 2008, 5:46 pm

>> From three phase power source
>> (E*1.73) * I = W * 3.413 = BTUH
>> Tony

>>> Anyone know the formula for measuring cfm on a 3 phase airhandler with 3
>>> phase heaters ( temp rise method ) I know what it is for single phase
>>> but dammed if I can remember what the 3 phase formula is, nor can I find
>>> it in all my old notes :-((( help-- trying to fix a hacked job at an
>>> american legion hall and I need to know the airhandlers cfm
>>> cabability--TIA!

> yeah yeah yeah, tony
> and XsubL=2PiFL. now are you inducted or impeded, or maybe even impotent?
> any reaction? resistance is futile.

He still doesn't get the connection, I guess he's not very well grounded

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