Heat Pump Hvac System Wiring - Trane Z WAVE TZEMT400AB32MAA User Manual

Thermostat User Guide

Heat Pump HVAC System Wiring

24COM
24RC
24RH
W1 HEAT
W2/O
G FAN
Y1 COMP
Y2 COMP
JP1: internal RC/RH Jumper
Do not cut for HP systems
Installation Notes
Heat Pump HVAC System Setup
System Type: Set the mechanical system type to Heat Pump in the Installer Settings Menu
Single Stage Compressor Systems use Y1 for stage 1 heating/cooling, and W1 for stage 2 Aux Heating.
Two Stage Compressor Systems use Y1 for stage 1, Y2 for stage 2 heating/cooling, and W1 for stage 3 Aux Heating.
Change Over Valve: You must configure the thermostat's changeover valve setting to work correctly with your HVAC
system. Check your system information to be sure.
• Changeover settings are made in the Installer Settings – System Settings - Mechanical Settings menu.
• Changeover with cool is the default setting and typical for most systems.
• If you get cooling when you expect heating, change the C/O type to the opposite setting.
HVAC system transformer: Heat pump systems have one system transformer. Do not cut the RC/RH jumper. Wire the
HVAC systems 24VAC common (blue wire) to the 24Com terminal, and the 24VAC return (red wire) to the 24RC terminal.
30
Z-WAVE Thermostat
BLUE
RED
WHITE
ORANGE
GREEN
YELLOW
BROWN
Typical HVAC system
thermostat wiring color
codes.
Be sure to verify your
systems wiring color codes.
Heat Pump HVAC System
THERMOSTAT CONNECTION
C 24VAC COMMON
R 24VAC RETURN
W 1 Aux Heat
Change Over Valve
G Fan
Y1 Compressor Stage 1
Y2 Compressor Stage 2