Engine: General Subjects

1. A The diverting relay processes the humidistat control signal as long as the space humidity is below the humidistat setpoint. The diverting relay processes the room thermostat control signal if the space humidity exceeds the humidistat setpoint.
2. B The diverting relay processes the room thermostat control signal as long as the space temperature is below the thermostat setpoint. The diverting relay processes the room humidistat control signal if the space temperature exceeds the thermostat setpoint.
3. C The diverting relay processes the humidistat control signal as long as the space temperature is below the thermostat setpoint. The diverting relay processes the room thermostat control signal if the space temperature exceeds the thermostat setpoint.
4. D The diverting relay processes the room thermostat control signal as long as the space humidity is below the humidistat setpoint. The diverting relay processes the room humidistat control signal if the space humidity exceeds the humidistat setpoint.

Tip: press A-D to answer