Question 89Refrigeration & AC - Assistant Engineer
70% to passA room humidistat initiates the lowering of the humidity of the conditioned supply air to a space, while the actual process is accomplished by what means?
Araising the cooling coil temperature and lowering the reheater temperature
Braising both the cooling coil temperature and the reheater temperature
Clowering the cooling coil temperature and raising the reheater temperature
Dlowering both the cooling coil temperature and the reheater temperature
AI Explanation
The correct answer is C) lowering the cooling coil temperature and raising the reheater temperature. When the humidistat detects a need to lower the humidity in the conditioned space, it initiates the process of dehumidification. This is accomplished by lowering the temperature of the cooling coil, which causes moisture to condense out of the air. The reheater temperature is then raised to heat the air back up to the desired supply air temperature, completing the dehumidification process. The other options are incorrect because raising the cooling coil temperature (A) or both temperatures (B) would not achieve dehumidification, and lowering both temperatures (D) would overcool the air.
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