Hey guys,

I hope somebody will help me for understanding compressor oil test procedure. We are planing to produce reversible heat pumps with combination of ventilation unit.

Compressor manufacturer advised to make oil tests. A few of them are a little bit unclear for me:
- I should perform oil test with minimum refrigerant flow (minimum refrigerant flow is when evaporating temperature is minimum and condensing temperature is maximum)

Question: should I perform this test in both modes (summer/winter)? Or minimum refrigerant flow is only in winter?

- I should perform oil test with maximum oil circulation degree (maximum oil circulation degree is when evaporating and condensing temperatures are maximum).

Question: should I perform this test in both modes (summer/winter)? Or maximum circulation flow is only in summer?

I hope somebody can provide me answers, thank you in advance.