Conventional HVAC Wiring and Setup configuration

Conventional Heat/Cool wiring and HVAC setup code

The thermostat will support up to 2-stages of cooling (Y1, Y2), 2-stages of heating (W1, W2) and fan control (G). The thermostat is powered on terminals RH and C. W1-O/B and W2-AUX are multi-purpose terminals and requires an HVAC setup code before it

Two-Transformer HVAC systems (RC & RH wiring)

When an HVAC system has separate 24V transformers (one for heating, one for cooling) this will be indicated when there are two independent R-wires and not using a RH/RC jumper. The thermostat is powered from the heating transformer on RH and C. The c