Is the Emergency Heat/ Normal switch, available on a terminal block? I want to provide a convent switch for the customer to access. (not in the attic)
The system is using a UZC4 setup with a two stage Heat Pump condenser ,dual fuel two stage emergency heat(Gas) and Digital thermostats (2 Cool,4 Heat) with humidity sensors, OAS, RAS, SAS installed. I have eight wires to each thermostat. All of the wires are in use. (R C Y1 Y2 W1 W2 G DHum)
I know if I had one more wire for "O" then I could change the UZC4 and the thermostats to HP, and allow the thermostat to call for emergency heat. Is the Emergency Heat/ Normal switch, available on a terminal block any where?