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Thread: Oil return in VRF systems
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22-05-2010, 06:16 PM #1
Oil return in VRF systems
Are there special piping requirements for VFR systems to ensure oil return? (I'm thinking of upgrading my split system to VRF). I read somewhere that IQDrive ramps the compressor up to full speed for 4 mins every half hour to ensure proper oil return. How do other systems handle it?
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