Adding an Outside Compressor for AC; Put Return Where?

Questions about repairs and parts for Nordyne furnaces, air conditioners and heat pumps for manufactured homes including Intertherm, Mac and Miller brands. Click here for Nordyne parts.

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kailor
Posts: 79
Joined: Sat Jan 01, 2011 11:25 pm
Location: Huntsville, Alabama

I'm adding an a-coil to the furnace and a new 2-ton Intertherm unit outside for AC. Where should I locate the return-air register in the floor AND where should I locate the unit outside?

Return-Air Register:
In the corner of the living room?
Near the furnace?

Outside AC Unit:
Near the return-air register?
Near the furnace?
Does it matter?
Thanks!
Two 14x66's
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Robert
Moderator
Posts: 6413
Joined: Wed Feb 28, 2007 12:07 am
Location: Tennessee

Hi,

What is furnace model number ?


Is your furnace a downflow with floor supply registers throughout the home ?



Thanks,
Robert
Some people are Humbly Grateful, while some are Grumbly Hateful.................... Which one are you ?
kailor
Posts: 79
Joined: Sat Jan 01, 2011 11:25 pm
Location: Huntsville, Alabama

Thanks Robert.
I'll post model # this weekend.
Yes, downflow with floor registers throughout.
Thanks!
Two 14x66's
kailor
Posts: 79
Joined: Sat Jan 01, 2011 11:25 pm
Location: Huntsville, Alabama

Robert,

Here's the information you requested:
Coleman Central Electric Furnace
Code & Serial #: 088770860
Model #: 3400A816
Output: 54,000 BTU
Volts/Hz/Phase : 240v/60Hz/1

The best I could tell was that it was manufactured on 08/25/1987.
Thanks!
Two 14x66's
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Robert
Moderator
Posts: 6413
Joined: Wed Feb 28, 2007 12:07 am
Location: Tennessee

Hi,

When it was installed, did it come set up for a/c ? Did it have two door panels ? Solid bottom door in front of furnace and a louvered upper door ?


If so, the a-coil sit atop the furnace and the return air comes in through the upper louvered door.


If not and you have an open top furnace with a flat filter in the top opening, remove the filter, a-coil will sit atop the furnace and you have return air coming through a filter grille in wall in front of the a-coil.


Then the outside condensing unit needs to be placed as close to furnace/a-coil as possible to have least length of refrigerant line set.


An hvac tech would be advised here to ensure proper install to meet codes and give quality comfort level.


Thanks,
Robert
Some people are Humbly Grateful, while some are Grumbly Hateful.................... Which one are you ?
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