Supplemental A/C unit

[nate chase]

I sure would be interested!!!! Love not to have to add a second roof unit.

Nate '75GB (Always in need of more A/C) Omaha

>
Date: Fri, 23 Jun 2000 17:57:53 EDT
From: Hanson9
Subject: Re: GMC: Supplemental A/C unit

For those who would like to know, Irv works for a company that modifies
trucks, etc with sleepers, ac units, etc. When he stopped by, we talked
about
a freestanding unit that could be built in behind the driver's seat, in a
storage space, etc and has it's own blower. It is supposed to be compact.
Irv...... come through with the info. Lot's of us are waiting. Dean Hanson

 

[dave1]

>A lot of good ideas seem to be showing up, and most of them going in the
>right direction - getting more air through the evaporator coil, and putting
>it where it is needed. After reading through these notes, and based on the
>response I got after my last posting on the add-on evaporator unit, I=
believe
>my first priority for air conditioning will be to make the dash air work
>better.
>
>As most of you know, the dash air is putting out only a small fraction of=
its
>cooling capacity. For those of you who have made modifications to the dash
>air, and you still need more cooling, an additional slave evaporator may be
>the solution. But I don't think that will be the best solution if your dash
>air is still in its original condition, putting out maybe 30% of its
>capability. That's my opinion, for what it's worth.

That was my conclusion. After adding two additional air vents from the dash=
=20
air system to the cockpit area I believe there is still enough cooling=20
capacity left to install one or two more vents for the passenger seating=20
area. Maybe I would need an additional fan (a 3" bilge fan from a boat?) to=
=20
provide additional air pressure to go the extra distance. The stock cooling=
=20
system has a lot of cooling capacity. Even with my new air vents I still=20
have the evaporator icing up. I suspect that the low-temp cutoff switch may=
=20
be bad. Hopefully I will have some time to check it out next=20
weekend. Somewhere I remember reading that this system has a cooling=20
capacity of 30,000BTU's. If that is the case, it should more than enough to=
=20
keep us in comfort while on the road. We just need to figure out how to=20
get it out from behind the dash and into the passenger compartment where we=
=20
need it!

Dave
Ann Arbor, MI.
73 Sequoia (26'/455/HEI/TBI/160=B0/3.42/Q55G)