Question 89Refrigeration & AC - Assistant Engineer

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.