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Home » Public Forums » GMCnet » Engine driven roof top AC to replace Dash AC
Engine driven roof top AC to replace Dash AC [message #321304] Sun, 30 July 2017 13:32 Go to next message
George B. is currently offline  George B.   United States
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Registered: February 2012
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Senior Member
Has anyone installed a roof AC unit similar to those used on a bus or similar to Airport shuttle van. We all know the dash AC does only a marginal job to cool the front and forget the entire coach.

George Butts Las Vegas Nevada 73 "Custom 26' Q" & 76 23' Birchaven 71 Honda 600 Coupe & 01 Tracker Toads
Re: [GMCnet] Engine driven roof top AC to replace Dash AC [message #321315 is a reply to message #321304] Sun, 30 July 2017 16:03 Go to previous messageGo to next message
Marsh Wilkes is currently offline  Marsh Wilkes   United States
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Registered: January 2004
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Senior Member


Interesting thought.
I don’t specifically remember that having been done on a GMC.
It would remove the condenser air flow restriction and heat from
the radiator for improved cooling and less problems with vapor lock.
It may be a third AC on the roof?
Definitely could cool the bridge.
Lots of pros and cons.

Marsh (who rarely post anymore) Wilkes






-----Original Message-----
From: GEORGE BUTTS via Gmclist
Sent: Sunday, July 30, 2017 2:32 PM
To: gmclist@list.gmcnet.org
Cc: GEORGE BUTTS
Subject: [GMCnet] Engine driven roof top AC to replace Dash AC

Has anyone installed a roof AC unit similar to those used on a bus or
similar to Airport shuttle van. We all know the dash AC does only a
marginal
job to cool the front and forget the entire coach.
--
George Butts
Las Vegas Nevada
73 "Custom 26' Q" & 76 23' Birchaven
71 Honda 600 Coupe & 01 Tracker Toads

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Re: [GMCnet] Engine driven roof top AC to replace Dash AC [message #321317 is a reply to message #321315] Sun, 30 July 2017 17:06 Go to previous messageGo to next message
tphipps is currently offline  tphipps   United States
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Registered: August 2004
Location: Spanish Fort, AL
Karma: 9
Senior Member
Might just be easier to run with the genset running and turning on the roof air. Works in my coach. One of the auxiliary coolers would be also to deal with than a roof mount. Look cleaner also.
Tom, MS II1975 Avion 4 sale


2012 Phoenix Cruiser model 2552 KA4CSG
Re: [GMCnet] Engine driven roof top AC to replace Dash AC [message #321432 is a reply to message #321317] Mon, 31 July 2017 12:52 Go to previous message
Keith V is currently offline  Keith V   United States
Messages: 2337
Registered: March 2008
Location: Mounds View,MN
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Senior Member
I put an Aux unit under the couch on the drivers side. I have a fan switch under the drivers seat.

It has two outlets, one points back, the other at the dinette. it really cools the coach down.

But the dash air could be beefed up

________________________________
From: Gmclist on behalf of Thomas Phipps
Sent: Sunday, July 30, 2017 5:06:02 PM
To: gmclist@list.gmcnet.org
Subject: Re: [GMCnet] Engine driven roof top AC to replace Dash AC

Might just be easier to run with the genset running and turning on the roof air. Works in my coach. One of the auxiliary coolers would be also to deal
with than a roof mount. Look cleaner also.
Tom, MS II1975 Avion 4 sale
--
1975 GMC Avion
KA4CSG

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Keith Vasilakes
Mounds View. MN
75 ex Royale GMC
ask me about MicroLevel
Cell, 763-732-3419
My427v8@hotmail.com
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