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Re: [GMCnet] My 1976 Palm Beach Project [message #294148 is a reply to message #294135] Thu, 21 January 2016 15:09 Go to previous messageGo to previous message
USAussie is currently offline  USAussie   United States
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma:
Senior Member
Justin,

The 14 in. x 14 in. hole is the industry standard for roof A/C's. The difference is the position of the section that connects to the
inside unit.

Page 6 of this manual shows the location of that section of three different Dometic units:

http://www2.dometic.com/b3056cd0-1a5b-4a15-8c1f-1d322d4ac84d.fodoc

The one on the left is the same as the GMC OEM roof airs.

Regards,
Rob M.
The Pedantic Mechanic


-----Original Message-----
From: Justin Brady

Most if not all ll rofftop ac's fit in the same 14x14 hole so in that respect yes they are a direct replacement. The only difference
would be the air distribution box on the ceiling I believe is a little smaller on these than the original duotherms (I havent had
them both in hand to check) Basically you remove 4 bolts from the originals, pull them off the roof, clean that nasty sealant that
they used, and put these on and tighten the 4 bolts. No modifications necessary.

Justin


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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426
 
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