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Posted by jeorme on October 25, 2006, 6:26 am
Altitude = 600ft
Air Delivery Size = cant find
Air Conditioning = No
Medium, LM, Low = I don't know
is this something I set up? What does
this mean?
.5" w.c. or more, or less = I don't know what
this means?
What is your target rise? = 30F to 70F
The heater says, "40 to 70" on the data
plate.
My plan was to run ductboard off the
plenum and tap off vertically to registers
on the first floor (640sq ft.).
Then, the 3 rooms on the second floor:
117, 160 and 54 square feet get vertical
pipes (6", 8" and 5"). I figured with 800cfm
I'd just keep subtracting with each register I
connected or keep adding on the first floor to
bleed off 800cfm.
This is the first home project I've undertaken
where a sneaking feeling that I might be totally
off base keeps creeping in.
I appreciate the interest and advice.
Jerome
> Jerome;
>
> The Payne PG9MAB you mention produces about 72,000 bth/hr depending on
> your
> altitude [derate above 2,000 feet - see instructions] - the 80,000 models
> comes in several air delivery sizes, namely 3-Ton; 4-ton; and 5-ton.
> Which
> one do you have? Will there be air conditioning? Or just heating. Will
> you be running this unit on medium, low medium or low? Will you be sizing
> your duct [including return] for .5" w.c. or more, or less? BTW: each
> furnace has a different temperature rise according to the air delivery.
> What is your target rise?
>
> --
> Zyp
>
>> Rank: Amateur
>>
>> I have a payne PG9MAB forced
>> hot air natural gas furnace.
>> It's rated at 80000 BTU. Is it safe for me
>> to assume that it will deliver 800cfm?
>>
>> I'm sizing duct and adding branches
>> to match 800cfm. Am I on the right
>> track?
>>
>> thanks
>> Jerome
>>
>>
>
>
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