Author Topic: Installing new roof AC  (Read 1294 times)

Fred Cook

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Installing new roof AC
« on: May 18, 2022, 08:52:33 PM »
Well I just received my new front AC roof unit today.  In the process of taking the old one off, I noticed the four anchor bolts holding it on to the roof were very loose.  If fact, I was able to turn a couple by hand and the other two took little effort to turn with a wrench.  So.... when I put the new AC on the roof, how tight are those bolts supposed to be?
Fred & Cindy
2002 Beaver Patriot Thunder 455, C12 CAT
Towing 2019 Chevy Equinox, AWD Diesel
South Central Missouri, US Army Retired

Bill Lampkin

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Re: Installing new roof AC
« Reply #1 on: May 18, 2022, 09:36:37 PM »
check the instructions from Dometic. Something like 22 in lb. Does your rig have the drain pans to drain the A/C condensate overboard? If so, you should use two new foam gaskets when installing the unit.
2005 Patriot Thunder Lexington, 3 slides
40' tag axle (short wheelbase)
525 hp C13

"Goin where the weather suits my clothes..."
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Fred Cook

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Re: Installing new roof AC
« Reply #2 on: May 19, 2022, 03:09:07 AM »
No instructions in the box…. Just a warranty sheet. I have completed the installation and tightened the bolts to the where the AC fan duct touches the ceiling duct. It seems to work fine.
Fred & Cindy
2002 Beaver Patriot Thunder 455, C12 CAT
Towing 2019 Chevy Equinox, AWD Diesel
South Central Missouri, US Army Retired

Bill Lampkin

  • BAC Member
  • *
  • Posts: 1230
  • Thanked: 359 times
2005 Patriot Thunder Lexington, 3 slides
40' tag axle (short wheelbase)
525 hp C13

"Goin where the weather suits my clothes..."