General Studies · Refrigeration and Air Conditioning
A refrigerant oil should be practically wax-free because:
- 1Wax can clog the refrigerant control orifice✓
- 2Wax causes rapid oil foaming
- 3Wax causes copper tubing to corrode
- 4Wax decreases the viscosity of the oil
Correct answer
Wax can clog the refrigerant control orifice
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