The heater in the thermostat control circuit in the cooling mode is active when the ____.
A) cooling contact is open
B) cooling contact is closed
C) fan switch is open
D) fan switch is closed

Question

Quizplus · Accepted Answer

In the cooling mode, the heater in the thermostat control circuit is active when the cooling contact is open. This is because the heater is used to simulate a rise in temperature, causing the thermostat to activate the cooling system. When the cooling contact is open, it indicates that the cooling system is not currently active, and the heater can be used to trigger its activation.

The Heater in the Thermostat Control Circuit in the Cooling