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Installation and Wiring
7
ENV-VST-C - Operation / Reference Guide
Wiring Diagrams
The following sections display wiring diagrams for the types of HVAC systems that are compatible with the thermostat:
Single Stage Furnace and Single Stage A/C
The thermostat automatically defaults to One Stage Furnace for the HVAC System setting when you install it. For
information about changing the HVAC System setting, see the Changing the Type of HVAC System section on page 40.
FIG. 4 Single Stage Furnace and Single Stage A/C wiring