Problems with roof deck replacing 1981 Bard wall hung heat pump

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Old 05-31-14, 08:47 AM
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Problems with roof deck replacing 1981 Bard wall hung heat pump

Was told by local AC person that to replace my 1981 Bard 2 ton wall hung heat pump with a new one they would have to cut into my roof to make room for the difference of depths of old and new unit. I was told 6 inches. I was not willing to do anything like that with the roof. They then said I could do a split system and hook up with existing supply and return. I really didn't want the air handler outside, there is no where else to install.

I decided to look at the difference in the dimensions of the old unit verses the new. The new unit is about 3 5/8 inches depth and about an inch taller. I am thinking that at most the problem is less than an inch on the top where the unit would hit the roof deck.

Now here is what I would like to know:

Is it possible to take off an inch the wall of the supply and return and hang the unit lower, so it woun't interfere with the roof decking? And somehow seal or insulate the upper part of the gap that I would have in the supply and return holes?
 
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Old 05-31-14, 08:53 AM
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Also the new unit has a 4 degree slope for the rain???? Hope all of this makes sense.

I was quoted 6000 dollars to install split system with air handler in the attic, which I don't like that idea either. A lot of money!

The first AC person wanted 5300 to install the split system outside.

I just want the AC in the house, but hadn't planned on spending so much money.

Any help would be appreciated....it is hot here in Florida!
 
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Old 05-31-14, 10:14 AM
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more pictures

Name:  bard1.jpg
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Size:  25.3 KBName:  bard2.jpg
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Size:  22.9 KBmore pictures, hopefully these help a little.
 
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