93 newmar a/c quit

[mikeanddebtaylo]

has anyone had a 93 mountainaire and had to replace the a/c? it is ducted and only a dometic brisk air1 will work, not a brisk air 11. cant even seem to find parts for it. any suggestions? maybe places to try to locate parts or discountinued a/c units?

[dougrainer]

mikeanddebtaylor wrote:
to dougrainer. it is a single 15000btu mounted almost in the middle of the coach. my return air are ducted thru out the coach,about every 8 feet. no central return air duct. dometic says only the brisk air1 will work.i haven't had the unit off to look down inside. can you tell me why a brisk 11 wouldn't work?

You misunderstood me. The intake and return I am talking about are the 2 roof top holes that feed the ceiling ductwork. The ONLY variable is the wall tstat and control system. The system you have was obsolete back in 1996/97. The current Dometic models will require a new tstat and control assbly. IF you have the regular type home tstat wire harness the new Single Zone tstsat and control will be able to use those wires The new Single Zone only needs 3 of those wires to communicate and operate. Does your existing wall tstat have a green LED light system? That has a ribbon cable between the wall and the roof unit. The Brisk Air II is just the current model. There is NO control and you have to either transfer your old control, but I do not believe it is compatible with the new Brisk Air. The Brisk Air II will work but it is the old tstat/control system I would be worried about. ALL Dometic products mount the same way. There are just a few variables on the top intake and exhaust holes that you have to make sure the plenums are sealed correctly. Doug

[mikeanddebtaylo]

to dougrainer. it is a single 15000btu mounted almost in the middle of the coach. my return air are ducted thru out the coach,about every 8 feet. no central return air duct. dometic says only the brisk air1 will work.i haven't had the unit off to look down inside. can you tell me why a brisk 11 wouldn't work?

[dougrainer]

mikeanddebtaylor wrote:
to mountainaire, the briskair2 will not work due to the inlet air configuration

You use a extra AC mount gasket to fit the intake and exhaust to route the air. Just like all Newmar's. The input and output of Dometic's are in the same general area and you use the extra gasket to route the air. Usually, a pre 95 Newmar had Coleman(RVP) AC units. The units are bolted from the top and your only availability is the current Brisk Air or Penguin units. NEVER install a 11k, use the 13.5 or 15k. Doug (working on Newmars and FIXING them for 20 years)

[mikeanddebtaylo]

to mountainaire, the briskair2 will not work due to the inlet air configuration

[MountainAir05]

Is there a reason you do not want the 2

[enblethen]

Try these people for a good used one. They are located in Missouri.
Colaw