In the illustrated single zone HVAC system, what statement represents the functioning of the diverting relay as it controls the cooling coil flow and the exhaust, outside air and recirculation dampers? GS-RA-09 Illustration GS-RA-09: the U.S. Coast Guard has not released this illustration.

Correct Answer: Option B — The diverting relay processes the room thermostat control signal as long as the space humidity is below the humidistat set point. The diverting relay processes the room humidistat control signal if the space humidity exceeds the humidistat set point.

The diverting relay acts as a logic controller, prioritizing temperature control under normal conditions. When the space humidity exceeds the set point, the relay switches control to the humidistat to prioritize dehumidification, ensuring the HVAC system maintains both thermal comfort and moisture levels within the specified design parameters.