r22 to r417a

[coolhibby1875]

can someone tell me, when changing a compressor that is r22, do you weigh in the same amount of gas on r417a as you would r22?

[Brian_UK]

Dupont recommend 85% but their guidelines are here, PDF.

http://www2.dupont.com/Refrigerants/en_GB/assets/downloads/k10921_MO59_uk.pdf

[freezetech]

brian is right they recommend 85% but we have done 3 units done the recharge to recommende level and the unit would not run correctly so we charged by superheat and units work fine

[Quality]

brian is right they recommend 85% but we have done 3 units done the recharge to recommende level and the unit would not run correctly so we charged by superheat and units work fine

Its all newish stuff but what was the subcooling measurment at what load
cheers

[coolhibby1875]

Thanks Brian thats a interesting link:)