The document is a product description of Honeywell VisionPRO™ 8000 Touchscreen Programmable Thermostat, which provides the features and characteristics of the product, including large screen display, backlight display, menu-driven programming, smart ergonomic design, touchscreen interaction, real-time clock, change/check reminder etc.
This manual covers the VisionPRO 8000 touchscreen programmable thermostat, a 7‑day thermostat compatible with gas, oil, electric and heat‑pump systems. It describes features such as a backlit display, touchscreen interaction, hold options, and humidity control for TH8321 models.
The document includes detailed installation steps, wiring diagrams, system type configuration, programming guidance, and a troubleshooting table to resolve common issues such as incorrect system settings or a locked keypad.
| Powering methods | Battery only, Common wire only, Common wire with battery backup |
|---|---|
| Terminal Voltage (50/60 Hz) – Running Current (W Heating) | 20‑30 Vac, .02‑1.0 A |
| Temperature Setting Range – Heating | 40 °F to 90 °F (4.5 °C to 32 °C) |
| Operating Ambient Temperature | 0 °F to 120 °F (-18 °C to 49 °C) |
| Battery type | Three replaceable AAA alkaline batteries or non‑replaceable lithium battery |
The thermostat displays “Heat On” on the screen when Heat is activated.
Check Installer Setup Number 0670 and change the keypad lock options to unlock the screen.
Use 18‑gauge thermostat wire for all connections.
Install the thermostat about 5 ft (1.5 m) above the floor in an area with good air circulation.