Description
The Honeywell TH140-28-01-B is a 7-day programmable thermostat engineered for reliable single-stage heating control in residential and light commercial hot water heating systems. Designed for vertical wall mounting, this white thermostat offers broad voltage compatibility and built-in pump protection, making it an ideal choice for hydronic and baseboard heating applications.
Key Features
- 7-day programmable scheduling for maximum energy efficiency and comfort flexibility
- Wide voltage compatibility: 24 Vac, 120 Vac, and 240 Vac operation
- Temperature setting range: 40°F to 85°F for versatile comfort control
- ±1°F differential temperature for precise, tight temperature management
- SPDT (Single-Pole Double-Throw) switching action for dependable circuit control
- 1-stage heat control — optimized for hot water heating systems
- Pump protection feature safeguards hot water heating pumps from damage
- Vertical mount design for clean, space-saving wall installation
- White finish blends seamlessly with standard wall décor
Specifications
- SKU: TH140-28-01-B
- Brand: Honeywell
- Voltage: 24/120/240 Vac
- Programming: 7-Day
- Temperature Setting Range: 40°F – 85°F
- Differential Temperature: ±1°F
- Switching Action: SPDT
- Stages: 1 Heat
- Mount Orientation: Vertical
- Color: White
- Application: Hot Water / Hydronic Heating with Pump Protection
Application
The TH140-28-01-B is purpose-built for hot water heating systems, including hydronic radiant and baseboard heating. The integrated pump protection function prevents short cycling and extends the life of circulator pumps. Its multi-voltage design (24/120/240 Vac) eliminates the need for a separate transformer in many line-voltage installations, simplifying wiring and reducing installation time.
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