Standard Gas/Electric HVAC System Wiring

Standard Gas/Electric HVAC System Wiring

Z-WAVE Thermostat

24COM

BLUE

24RC

 

24RH

RED

 

W1 HEAT

WHITE

 

W2/O

ORANGE

G FAN

GREEN

Y1 COMP

YELLOW

 

Y2 COMP

BROWN

 

Standard HVAC System

THERMOSTAT CONNECTION

C 24VAC COMMON

R 24VAC RETURN

W 1 Heat Stage 1

W2 Heat Stage 2

G Fan

Y1 Compressor Stage 1

Y2 Compressor Stage 2

JP1: internal RC/RH Jumper See notes

Typical HVAC system thermostat wiring color codes.

Be sure to verify your

Installation Notes

Standard HVAC System Setup

System Type: Set the system type to Gas/Elect in the Mechanical Settings menu of the Installer Setup. This is the default setting.

Single Stage systems use W1 for heating stage 1 and Y1 for cooling stage 1.

Two Stage Heating systems use W1 for stage 1 and W2 for stage 2 heating.

Two Stage Cooling systems use Y1 for stage 1 and Y2 for stage 2 cooling.

HVAC system transformer: If you have an integrated heating and cooling system with a single transformer, do NOT cut jumper JP1. Wire the HVAC system’s 24VAC common (blue wire) to the 24Com terminal and the 24VAC Return (red) wire to either 24RH or 24RC terminal. This is typical of most central systems.

If you have separate heating and cooling systems with separate transformers, cut jumper JP1. Wire the heating 24V R (red) wire to the thermostat’s 24RH terminal. Wire the cooling systems 24V R (red) wire to thermostat’s 24RC terminal. Also wire the cooling systems 24VAC Common (blue wire) to the thermostat’s 24COM terminal.

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Vizio TZEMT400AB32MAA warranty Standard Gas/Electric Hvac System Wiring, Installation Notes Standard Hvac System Setup