Description
The Honeywell TH135-01-B is a reliable, no-frills non-programmable thermostat engineered for heat-only HVAC applications. Designed for straightforward installation and dependable operation, it delivers precise temperature control in residential and light commercial settings where simplicity and accuracy are paramount.
Overview
The TH135-01-B operates on 24 Vac or 24 Vdc power and features a 40–85°F (4–29°C) temperature setting range, making it well-suited for a wide variety of heating systems. With a ±1°F accuracy rating and a 3 or 4 cycles-per-hour switching rate, this thermostat maintains consistent comfort while minimizing unnecessary system cycling. Its vertical-mount design and battery-powered operation (2 AA batteries) offer flexible placement and continued functionality even during power interruptions.
Key Features
- Non-programmable design for simple, straightforward operation
- Heat-only control — ideal for gas, oil, or electric heating systems
- Compatible with 24 Vac or 24 Vdc systems
- Temperature setting range: 40–85°F (4–29°C)
- Switching rate: 3 or 4 cycles per hour (CPH)
- Temperature accuracy: ±1°F
- Vertical mount orientation for easy wall installation
- Battery-powered: requires 2 AA batteries (not included)
- Operating humidity range: 0–95% non-condensing
Specifications
- Brand: Honeywell
- Model / SKU: TH135-01-B
- System Type: Heat Only
- Voltage: 24 Vac / 24 Vdc
- Temperature Setting Range: 40–85°F
- Accuracy: ±1°F
- Cycles Per Hour: 3 or 4 CPH
- Mount Orientation: Vertical
- Power Source: 2 AA Batteries
- Operating Humidity: 0–95% Non-Condensing
Applications
The TH135-01-B is an excellent choice for residential heating systems, rental properties, light commercial spaces, and any application where a dependable, easy-to-use heat-only thermostat is required. Its broad humidity tolerance and battery-powered design make it a versatile solution across a range of environments.
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