How do I access the installer setup (ISU) on a TH6110D1005, TH6220DXXXXX, TH6320U1000 thermostat?
- To begin, press and hold the Up arrow and FAN buttons until the display changes.
- Press Up or Down to change settings.
- Press NEXT to advance to next function.
- Press DONE to exit and save settings.
For more information on the ISU, please see pages 5 and 6 in the manual. Click here to download (English)