Johnson Controls T22ABC-3 Thermostat

The Johnson Controls T22ABC-3 is a professional-grade line voltage wall thermostat engineered for high-accuracy heating applications. This SPST (Single Pole Single Throw) controller is specifically designed for unit heaters, fan coils, and electric heat systems where reliable performance is non-negotiable. It features a liquid-charged sensing element that provides a tight 1-3/4 degree differential without the need for additional anticipators, ensuring consistent mechanical cycling and energy efficiency in commercial or industrial environments. The T22ABC-3 is technically identical to the T22ABC-3C, offering a concealed adjustment dial to prevent unauthorized setpoint tampering and a built-in Auto-Off-Fan selector switch for integrated system control. With a versatile 40 to 90 degree temperature range and a rugged steel cover, this Penn Controls series thermostat is a standard for contractors requiring a durable, mechanical thermostat capable of handling 120V to 240V loads.

Key Benefits:

• Tamper-Resistant Design: Features concealed adjustment and Allen-head cover screws to ensure setpoints remain locked in high-traffic areas.
• Precise Thermal Response: The liquid-charged diaphragm and high-efficiency leverage provide a close differential for superior comfort control and reduced equipment wear.
• Integrated Fan Selection: Built-in three-position selector switch (Auto-Off-Fan) eliminates the need for external subbases or additional wiring during HVAC installation.
• Universal Application: Rated for line voltage control of residential, commercial, and industrial heating, including steam and hot water systems.

Common Questions:

• Is the T22ABC-3 compatible with low-voltage systems? While primarily designed for line voltage, these thermostats are suitable for low-voltage applications where SPST switching is required.
• What is the difference between the T22ABC-3 and the T22ABC-3C? There is no functional difference; the models are identical in technical specification and performance.
• Does this model require heat anticipators? No, the T22 Series utilizes a specialized sensing element that achieves a precise differential without anticipators, simplifying the wiring process.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.