Get support for your T6 PRO SMART THERMOSTAT, from installation and manuals to troubleshooting tips and replacement information.. NOTE: If dual fuel, TH6320WF2003 model needed. 2H/2C Heat Pump System Power [R+Rc joined by Slider Tab] Compressor contactor (stage 1) 24VAC common Changeover valve 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
Please try again. Check the name or model number of your product to ensure it's correctly written in the search bar above. If you're looking for a product that isn't a thermostat, try checking here.. Thermostat Manuals. Honeywell. TH6320WF2003. Professional Install Guide.. Description. To replace the old thermostat and install the Honeywell TH6320WF2003 Lyric T6 Pro, follow the steps described in the professional install guide on the 20 pages. This will allow the Wi-Fi programmable thermostat to be installed correctly and proceed to.