Honeywell TH8320U VisionPro Thermostat The TH8320 Thermostat is a Touchsreen, 7-Day Programmable (or non-programmable), multi-stage thermostat. The TH8320 Thermostats provide temperature control for gas, oil, electric and heat pumps for up to 3 heat, 2 cool systems including dual fuel...

Honeywell Thermostat: TH8320U VisionPro Re: Setup Options To enter Installer Setup: Touch the "System" button. The center squares at the bottom of the screen should display empty. Touch and Hold the empty squares to the Right & Left of the Center square. Setup# ...

Honeywell Thermostat: TH8320U Re: 2HT/1CL Conventional Setup To enter Installer Setup: Touch the "System" button. The center squares at the bottom of the screen should display empty. Touch and Hold the empty squares to the Right & Left of the Center square. Setup# ...

Honeywell Thermostat: TH8320U Re: ADD-ON HEAT PUMP The TH8320U VisionPro thermostat is capable of direct-control of an add-on heat pump system. (Does not apply to York units with Yorkguard Module) Requirements: TH8320U Thermostat C7089U Outdoor Sensor Minimum #8 (preferably #10) stat...

Honeywell Thermostats Re: Red Light on Thermostat Flashing Some York Heat Pumps have a diagnostic board that will flash a light or display "Error 40" at the thermostat when a fault condition occurs. The light will flash a certain number of times, pause, then flash the same number again. ...

Honeywell Thermostats: VisionPro IAQ Re: Thermostat Shows Error 40 Some heat pumps have a diagnostic board that will flash a light or display "Error 40" at the thermostat when a fault condition occurs. Error Code 40 is displayed on a Honeywell VisionPro IAQ thermostat when it receives a 24V...