We recently had a Copeland scroll compressor fail in a commercial unit at a broadcast transmitter site that needs cooling almost year around due to the heat load. Both units at the site have fan cycle switches on the condensers due to the low outdoor temps we receive in the winter.
The technician that came out to replace the unit believes the failure was caused because he says the fan cycle switch was no longer working, which is possible.
However, the thing that got me is he said because the unit uses a scroll compressor instead of conventional compressor a fan cycle switch is not required.
I have at least another 1/2 dozen commercial units that came with factory installed fan cycle switches and some with variable speed controls on the condenser fans and everyone of them has a Copeland scroll in it, I've been looking all morning to find a definitive answer to this question but can't find one, can someone help me with this?
I need to know whether to get the guy back out to finish the job or maybe I need to find someone else to finish it.