Description
The Honeywell TH8321U1006 (VisionPRO 8000 series) is a versatile, touchscreen-based programmable thermostat built for residential and light commercial HVAC systems.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Honeywell |
| Category |
|
| Part Number |
TH8321U1006 |
| Subcategory |
Thermostats |
| Device Type |
Programmable Thermostat |
| Application |
Heat Pump, Multi-Stage (Heat/Cool) |
| Stages |
3 Heat / 2 Cool (Heat Pump) |
| Programmability |
7-Day Programmable |
| User Interface |
Touchscreen |
| Mount Orientation |
Horizontal |
| Color |
Premier White |
| Power Method |
Battery or Hardwired |
| Voltage |
Low Voltage – 20–30 VAC or 750 mV |
| Frequency |
50/60 Hz |
| Amperage |
0.6 – 1 A |
| Wattage |
15 to 25 W |
| Changeover Type |
Auto / Manual |
| Fan Control |
Yes |
| Auto Changeover |
Supported |
| Sensor Compatibility |
Works with External Sensors |
| Password Lockout |
Yes |
| Temperature Range |
40°F – 99°F |
| Humidity Range |
5% – 90% RH (Non-Condensing) |
| Wiring Connections |
C, S1, S2, L |
| Height |
4-9/16″ |
| Width |
6″ |
| Depth |
1-1/4″ |
| Weight |
0.75 lbs |
Information About TH8321U1006
The Honeywell TH8321U1006 is a universal programmable thermostat from the VisionPRO 8000 series, designed for residential and commercial HVAC applications that require advanced climate and humidity control. Supporting up to 3 heat/2 cool heat pump systems or 2 heat/2 cool conventional systems, it combines 7-day scheduling, touchscreen operation, and dehumidification capability in a compact, horizontally mounted design. With armchair programming, flexible power options, and robust system compatibility, it’s an ideal solution for precise comfort management in demanding environments.
Key Features:
- Universal Multi-Stage Compatibility: Works with 3H/2C heat pump or 2H/2C conventional systems, providing flexible control for a wide range of HVAC configurations in both residential and light commercial settings.
- Touchscreen Interface & Scheduling: Features a backlit touchscreen with 7-day programmable scheduling and multiple daily periods, offering intuitive setup and control for tailored comfort.
- Dual Power Options: Supports both 24 VAC hardwired operation and 750 mV millivolt systems, with optional battery backup for clock and schedule retention during power loss.
- Dehumidification Control: Built-in dehumidification logic enhances indoor comfort by managing humidity levels directly from the thermostat—especially valuable in humid or sealed environments.
- Advanced Installer Configuration: Includes detailed setup menus with options for fan control, compressor protection, temperature offsets, password lockout, and support for remote sensors (S1/S2).
- Armchair Programming: Allows for off-the-wall programming, enabling pre-installation configuration and saving setup time for installers in field deployments.
The TH8321U1006 offers precise temperature and humidity control with versatile compatibility for complex HVAC systems. Its programmable interface, service-friendly features, and professional-grade reliability make it a go-to thermostat for legacy and upgrade projects alike—especially where humidity and multistage control are essential.
