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WTB The center floor level A/C outlet [message #282647] Mon, 20 July 2015 17:52 Go to next message
tphipps is currently offline  tphipps   United States
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Hope I'm describing what I think that I want. The two outlet box that was on the last generation of the GMC A/C system.
Tom, MS II


1975 GMC Avion KA4CSG
Re: WTB The center floor level A/C outlet [message #282684 is a reply to message #282647] Tue, 21 July 2015 09:15 Go to previous messageGo to next message
Matt Colie is currently offline  Matt Colie   United States
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Tom,
I have never seen what you mean in a GMC, but if you mean an in-floor duplex receptacle box,
Try a Raco 6500NI-5. They aren't cheap.

I hope that is what you want.

Matt

tphipps wrote on Mon, 20 July 2015 18:52
Hope I'm describing what I think that I want. The two outlet box that was on the last generation of the GMC A/C system.
Tom, MS II



Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan
OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Twixt A2 and Detroit
Re: WTB The center floor level A/C outlet [message #282690 is a reply to message #282647] Tue, 21 July 2015 10:32 Go to previous messageGo to next message
roy1 is currently offline  roy1   United States
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I think what you are looking for is the double outlet that is located just above the floor on the 75 and 76 coaches?

Roy Keen Minden,NV 76 X Glenbrook
Re: WTB The center floor level A/C outlet [message #283057 is a reply to message #282690] Fri, 24 July 2015 19:14 Go to previous messageGo to next message
tphipps is currently offline  tphipps   United States
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Yes, the double outlet box is what I would like to have. Still working ob improving interior A/C.
Tom, MS II


1975 GMC Avion KA4CSG
Re: WTB The center floor level A/C outlet [message #283060 is a reply to message #283057] Fri, 24 July 2015 20:06 Go to previous messageGo to next message
A Hamilto is currently offline  A Hamilto   United States
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tphipps wrote on Fri, 24 July 2015 19:14
Yes, the double outlet box is what I would like to have. Still working on improving interior A/C.
Tom, MS II
Getting return air into the blower box is a little less than half the battle. By the time the cold air gets around all the restrictions to get to the dash vents, it is just a trickle.

You need to add some more direct paths from the evaporator to the passenger compartment like Dave Markus did. http://www.bdub.net/gmc-faq.html search the page for "markus".

Pictures of what he is talking about are here:

http://www.gmcmhphotos.com/photos/ac-ducts/p24965-air-duct-opening-on-drivers-side-floor.html
Re: WTB The center floor level A/C outlet [message #283076 is a reply to message #283060] Sat, 25 July 2015 00:22 Go to previous message
roy1 is currently offline  roy1   United States
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If a large hole is cut in the firewall in the 75 or 76 coach and the outside air is blocked off a lot of air comes out of those 2 vents. In my case it feels like 3 times as much . Very often my wife tells me I'm freezing her out. At any rate it makes a big difference.

Roy Keen Minden,NV 76 X Glenbrook
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