How does two-stage cooling work?
Two-Stage Cooling Offers Efficiency, Extra Comfort. If you are looking for energy efficiency and extra comfort in air conditioning, try a system with two-stage cooling. Two-stage cooling allows the air-conditioners compressor to run at high or low levels. Since the low setting is adequate to meet household-cooling demands 80% of the time, a two-stage unit runs for longer periods and produces more even temperatures.
