| Re: Vintage air under dash [message #366881 is a reply to message #366604] |
Mon, 20 September 2021 13:20   |
GatsbysCruise
Messages: 261
Registered: January 2017
Location: Waukegan, Illinois
Karma:
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Senior Member |
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Before I was able to get my vent work in the dash under control, I had the under dash unit installed.
My comments will go up and down here so bear with me.
They used the OEM GM compressor saying it had plenty of capacity for both the OEM system and the Newly installed
under dash system.
It was installed and as I ran it, I had plenty of cold air from the under dash unit and from the OEM ac vents.
I have only the OEM evaporator, I did not add a second Evap.
They tied the hoses (freon) under the drivers deck, which would prove problematic later.
I left the heat of Florida and headed home, thoroughly enjoying the cool AC. So the unit works well.
But as I approached Chicago, I noticed that the GMC was warming up inside. By the time I was home, the AC was
dead again.
I had the mechanic go over the system and found the fittings under the floor were not completely tight and all the
gas leaked out.
This seems typical for this shop that did the work.
BE VERY SURE that your fittings are correctly tightened to prevent gas leakage from the system.
As for operation, when it worked, the underdash unit put a lot of COLD air out and with the OEM system assisting
pushing cold air through the dash vents, The RV temps can be controlled easily.
They kept the OEM GM AC compressor saying it had plenty of capacity for the additional under dash unit and
I can't dispute that as it did cool the inside of the RV very well.
I dont know anything about the Sandas unit but if it has the capacity of the GM OEM unit, it should do fine.
GatsbysCruise. \
74GMC260 Former Glacier Model style. \
Waukegan, Illinois \ Keep those MiniDiscs Spinning \ MY GREYHOUND IS FASTER THAN YOUR HONOR ROLL STUDENT \ WindowsXP-Win7-Win8.1-UBUNTU STUDIO - UBUNTU VOYAGER - Berzin Auto Center
[Updated on: Mon, 20 September 2021 13:24] Report message to a moderator |
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