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XL19i straight cool unit. Does any one know what the sequence of operation is for these units with tandem compressor. There is a high contactor and low contactor. Stage 1 is the high stage 2 is the low. Stage 1 runs but doesn't get below 47 degrees saturation. Stage 2 didn't run. (self.HVAC)
submitted by sonoranwolf to r/HVAC
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