AMX ENV-VST-C - Manual (Page 11)

Installation and Wiring
5 ViewStat Color Communicating Thermostat
Wiring the Thermostat
1. Make sure the HVAC system power is off.
2. Strip 1/4" (0.63 cm) of insulation from each wire you are using.
3. Secure the wires into the terminals on the base according to the appropriate wiring diagram, as
described in the following table. Refer to the Wiring Diagrams section on page 9. Use color-coding
practices (i.e. white wire to W terminal) whenever possible.
4. Check each wire to ensure it is securely fastened, not broken, and any exposed wires are not
touching each other.
A qualified HVAC technician should perform these steps to ensure proper termination.
• Single Stage Furnace and Single Stage A/C Refer to the Single Stage Furnace and
Single Stage A/C section on page 9
• Dual Stage Furnace and Dual Stage A/C Refer to the Dual Stage Furnace and Dual
Stage A/C section on page 10
• Roof Top Unit with Dual Stage Heat and Dual
Stage Cool
Refer to the Roof Top Unit with Dual Stage
Heat and Dual Stage Cool section on
page 10
• Boiler with A/C with Separate Transformers Refer to the Boiler and A/C with Separate
Transformers section on page 11
• Single Stage Heat Pump Refer to the Single Stage Heat
Pump section on page 11
• Two Stage Heat Pump Refer to the Two Stage Heat Pump section
on page 12
• First Stage Radiant Floor Heat, Second Stage
Furnace One Stage of Cooling
Refer to the First Stage Radiant Floor Heat,
Second Stage Furnace with Single Stage
Cooling section on page 13