Which thermostat terminal provides heating call?

Prepare for the essential 636 Period 3 Motor Final Test with comprehensive flashcards and detailed questions. Access explanations and hints for each question to ace your exam!

Multiple Choice

Which thermostat terminal provides heating call?

The heating call is provided by the W terminal. In a typical 24-volt thermostat system, the thermostat gets power from R, and when you set heat, the thermostat closes the circuit between R and W. That energizes the furnace or boiler to start heating. Y controls cooling (compressor), G controls the indoor fan, and R is the power supply, so W is the one that signals heat.

The heating call is provided by the W terminal. In a typical 24-volt thermostat system, the thermostat gets power from R, and when you set heat, the thermostat closes the circuit between R and W. That energizes the furnace or boiler to start heating. Y controls cooling (compressor), G controls the indoor fan, and R is the power supply, so W is the one that signals heat.

More practice questions