What does the expansion vavle on the a/c system do>
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06-04-2000, 12:35 PM
Join Date: Feb 2000
Location: Rancho PV, CA, USA
The expansion valve allows the compressed refrigerant to be released into the cooling coils in the airconditioning system. This action drops the pressure creating the cooling effect. I do not know if they have to be changed on conversion to R-34.
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