Description
The Johnson Controls T26T-3 is a heavy-duty line voltage wall thermostat engineered for reliable temperature control in both heating and cooling applications. Featuring a straightforward knob-adjustment interface, this thermostat is ideal for commercial and industrial environments where simplicity, durability, and dependable switching performance are essential.
Key Features
- Designed for heating and cooling applications
- SPDT (Single-Pole, Double-Throw) heavy-duty switching action for reliable load control
- Intuitive knob adjustment for easy setpoint changes
- Wide temperature range: 40°F to 90°F
- 3-degree heating differential for precise heating control
- 3 to 4-degree cooling differential for accurate cooling performance
- No selector switch — simplified, dedicated operation
- Line voltage design eliminates the need for a separate transformer
- Wall-mount installation for convenient placement
Specifications
- Model: T26T-3
- Brand: Johnson Controls
- Thermostat Type: Line Voltage Wall Thermostat
- Application: Heating and Cooling
- Switch Type: SPDT Heavy Duty
- Adjustment: Knob
- Temperature Range: 40°F to 90°F
- Heating Differential: 3°F
- Cooling Differential: 3°F to 4°F
- Selector Switch: None
Applications
- Commercial HVAC systems requiring line voltage control
- Unit heaters, electric baseboard heaters, and fan coil units
- Light industrial and commercial cooling equipment
- Retrofit and replacement installations requiring a heavy-duty SPDT thermostat
The T26T-3 is a proven solution for contractors and facility managers who need a no-frills, dependable line voltage thermostat with a wide operating range and heavy-duty switching capability. Its knob-adjust design makes setpoint changes fast and intuitive, while the SPDT contact configuration provides versatile control for a broad range of HVAC equipment.







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