Many central system chillers use water-cooled condensers because:
A) Water-cooled chillers take up less space inside the building than air-cooled chillers.
B) The compressor can be located almost anywhere inside the building.
C) Water-cooled condensers require less maintenance than air-cooled condensers.
D) Air-cooled condensers contribute more to global warming.
Question 2
The reversing valve on most air-source residential heat pumps is energized:
A) During the cooling and the defrost cycles. B) During the heating cycle.
C) During the cooling cycle. D) During the defrost cycle.