Proofing Most states have outlawed the old fashioned mercury blob thermostat. For shorter runs use 20 gauge. Plus, Im anything but a technician so what I have detailed below is here purely as a guideline. The W terminal is for heating including the heating for gas furnaces, electric furnaces, boiler systems and the backup heat for heat pumps.
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The R terminal is the 24-volt hot feed from the control step down transformer that will power the relay, contactor, or complete the circuit in the circuit board feeding mzansi local sex clips it with 24 volts when the thermostat calls for whatever it is set for. Primary cool call relay, y2, yellow, secondary cool call relay. Related Link: Control Circuits for Air Conditioning Heating - Delve deeper and learn more about hvac (opens in a new window). Red Rc 24VAC (dedicated to heat call red Rc 24VAC (dedicated to cooling call green. You can also look inside your furnace (see method 2). . The Nest will pulse the heat wire, turning on the furnace to pull a bit of power to keep itself going.
Hookup safety, Is tinder a good hookup site,