Power draw at half speed was almost 1/2 of full speed. In addition, you save the inefficiency of cycling. I don’t make decisions on hypotheticals regarding availability of parts that apparently have low failure rates. I would never buy a system with a one speed compressor (except when forced to in my Villages spec home). My current one-speed system cycle frequently - definitely doesn’t run full blast all the time. That is why you want varyable speed speed compressors. Carrier sells mostly one-speed compressors because most people want cheap.
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Originally Posted by retiredguy123
I think that if Carrier only sold variable speed compressors, they would go out of business. The majority of the Carrier units in The Villages are single stage compressors. One reason that I prefer them is that you can usually get them repaired immediately because parts are readily available. I would also point out that a compressor that runs at a lower speed is not necessarily more efficient, especially if is not programmed correctly to take advantage of a reduced speed. Variable speed compressors have been available for many years, but they still lag in sales way behind the single stage compressor. Most of the time, in The Villages, you want to AC unit running full blast.
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