Honeywell T6 Pro Installation Guide

R Power
Rc [R+Rc joined by Slider Tab]
Y Compressor contactor (stage 1)
C 24VAC common
O/B Changeover valve
G Fan relay
Y2 Compressor contactor (stage 2)
L Heat pump fault input
3H/2C Heat Pump System
R Power
Rc [R+Rc joined by Slider Tab]
Y Compressor contactor (stage 1)
C 24VAC common
O/B Changeover valve
G Fan relay
Aux Auxiliary heat*
E Emergency heat relay*
Y2 Compressor contactor (stage 2)
L Heat pump fault input
NOTE: TH6320WF2003 only.
NOTE: Do NOT use W for heat pump applications. Auxiliary heat must wire to AUX or E. If you do not have separate
wires for the Aux and E terminals, connect the wire to the Aux terminal.
Ventilation systems
NOTE: Ventilation is not available on all models.
Using U Slider Tab
Wired to ERV/HRV whole house ventilator with internal power supply. Wired to fresh air damper powered by furnace
transformer.
Mounting thermostat
1. Push excess wire back into the wall opening.
2. Close the UWP door. It should remain closed without bulging.
3. Align the UWP with the thermostat, and push gently until the thermostat snaps in place.
4. If needed, gently pull to remove the thermostat from the UWP.
5. Search for local rebates: Your thermostat may now be eligible for local rebates. Search for offers in your area
at HoneywellHome.com/Rebates Using U Slider Tab Wired to ERV/HRV whole house ventilator with internal

Honeywell T6 Pro Specifications

General

Display	Touchscreen
Energy Star Certified	Yes
Power Source	Battery or Hardwired
Operating Modes	Heat, Cool, Auto, Off
Geofencing	Yes
Compatibility	Works with most HVAC systems
Fan Modes	Auto, On, Circulate
Remote Access	Yes
Energy Saving Features	Smart Response Technology
Connectivity	Wi-Fi
Warranty	5-year limited warranty