| [GMCnet] Dash Air Conditioning [message #143095] |
Mon, 12 September 2011 13:21  |
Dolph Santorine
Messages: 1236
Registered: April 2011
Location: Wheeling, WV
Karma:
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Senior Member |
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These questions are coming out off a brief conversation I had with Ken Henderson about the dash A/C, and some of the work that he's been doing with his unit.
He mentioned the A6 Compressor ranges from 27,000 BTU to 42,000 BTU (4,000 RPM). (as designed, running R12)
The rooftop A/C units that most coaches have at least one of are generally 13,500 to 15,000 BTU (Limited to 15,000 because of electrical considerations).
If we use midpoints on both (the rooftops assuming 27,000 BTU) and the dash unit at 34,500 BTU, I don't understand why the coach would not have a unified system that did both.
I know that intercity busses generally have a unified system, but they are huge (8 tons and up), and designed to have many 500 BTU/hr. humans crammed into fairly small spaces.
I guess I'm not understanding why the dash unit should not be more than sufficient to cool the entire coach.
Thoughts? Observations?
Dolph
DE N8JPC
Wheeling, West Virginia
dolph@dolphsantorine.com
1977 GMC 26' Palm Beach
TZE167V100820
1976 GMC 26' Donor Coach
TZE166V101610
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