× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Re: VIR Question
Posted to HVAC Forum on 6/20/2014

Its an oil bleed. Its purpose is to allow oil from the evaporator to return to the compressor when the POA valve is closed Login to read more.