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Reply to "A/C improvements"

The question would be why do think this is of benefit?

The R134a compressor has a higher rated pressure rating because an R134a system operates at a higher pressure, the reason why you have to change the expansion valve (orifice size). You are going to over pressure the system or have a lot less R12 in it and reduced cooling. Why not just get a rotary compressor rated for R12?

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