120 Volt Thermostat Wiring Diagram. Make sure this fits by entering your model number. They do not connect to the thermostat.
Furthermore the wires going to the condensing unit are shown in red and white. Powers up smart thermostats for Nest Ecobee Honeywell Emerson Sensi Hive etc and doorbells Ring Nest Hello Skybell August that require 24 volt power for operation. This can be used alone or in.
Typical wiring diagram for heat only 3-wire single transformer systems TRANSFORMER Heating System Fan Relay C Y RC JUMPER WIRE B O For 2-wire Heat only attach to RH and W NOTE Y RH 24 VAC 120 VAC Hot Neutral TRANSFORMER THERMOSTAT SYSTEM G W Figure 3.
For 120-volt wiring the black hot wire from the breaker connects to the line wire on the thermostat. According to the manual I can wire in an externalremote thermostat to the provided terminal station using 16 AWG wire. Specialty Thermostat and Zone Valve Wiring 52 56 Radiant Mixing Block 57 58 X-Pump Block 59 61. The white neutral wires from both cables are joined together in the thermostat box.
