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Old 06-04-2000, 12:35 PM
Ed Richardson Ed Richardson is offline
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Join Date: Feb 2000
Location: Rancho PV, CA, USA
Posts: 328
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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