Copeland Brand Products Technical FAQ
Copeland Brand Products Technical FAQ
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1. What is considered good oil pressure?
2. How do I know if a compressor is operating to capacity?
3. What needs to be checked when a compressor trips on the protector?
4. What needs to be checked when an erratic oil pressure control trips?
5. What would cause my compressor to overheat?
6. What would cause a compressor to run in a rapid cycling mode?
7. Will replacing the compressor solve a unit's noise problem?
8. Can a universal capacitor and relay be used with Copeland compressors?
9. A single-phase unit dims the customer's lights when it starts. What can be done to remedy this?
10. How can I tell if the compressor is operating properly?
11. Is there a limit on the length of line runs or vertical risers?
12. There are many oil additives that claim to increase compressor or system efficiency, others that neutralize acid or find leaks. What oil additives are approved for the Copeland brand compressors?
13. How much oil is in a Scroll compressor and what is a complete recharge?
14. Why do refrigeration manufacturers recommend only 80% to 90% of the original system charge when retrofitting to some HFCs?
15. Is it acceptable to use R-404A and Alkyl Benzene (AB)?
16. Can I use a receiver on a cap tube system?
17. Should a suction line filter drier be installed before or after an accumulator?
18. Which starting components should be used with the new Copeland™ single-phase Scroll models?
19. What are the proper methods to determine operating superheat, sub-cooling and net oil pressures?
20. Can I mix different oils?
21. Can I use R22 with POE?
22. Can I add an additive to the oil in my system?
23. When we are assembling the system it is open to the air for several hours. What effect will this have on POE oil?
24. Will too high of an oil level cause the compressor to trip on oil failure?
25. What is the viscosity of POE oil?
26. Where can I find what refrigerants are approved for Copeland™ compressors?
27. What would be the effect if I topped off the compressor with the wrong oil?
28. Are all POE refrigerant oils the same?
29. What will happen if I use Mineral oil or Alkybenzene oil with a HFC refrigerant?
30. How long can I leave POE oil exposed to the atmosphere before contamination occurs?
31. Does Emerson Climate Technologies analyze oil from failed compressors?

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