White Rodgers Wiring Diagram Advanced. The white rodgers 1f90 and similar models will replace most 2 wire heating thermostats and many 3 wire 4 wire thermostats used for both heating and cooling. Thermostat has r rc o w y g terminals.
1 trick that we. Replace subbase with wallplate. Another thing which you will locate a circuit diagram could be traces.
Typical wiring diagram for cool only 3 wire single transformer systems cooling system fan relay b o rc jumper wire y rh 24 vac 120 vac hot neutral.
Typical wiring diagram for heat only 3 wire single transformer systems transformer heating system fan relay 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. There are two things that will be present in any white rogers thermostat wiring diagram. Ing the 50a55 control to other components of the system. I am wiring a thermostat 1f78 the thermostat terminal stripdiagram shows wrhbrcthe thermostat though has the answered by a verified hvac technician.