Maxitrol T244 Selectra Stat

If you are servicing direct-fired equipment using Maxitrol Series 44 or Series 24 systems, the Maxitrol T244 Wall Mount Selectra Stat is the industry standard for precise space temperature control. This veteran component integrates both sensing and selecting functions into a single wall-mounted thermostat, allowing for a 55-90 degrees F range adjustment. Optimized for electronic gas flame modulation, it works seamlessly with A1044 amplifiers and M/MR modulating valves like the M411, M511, or MR212. By sensing the ambient air in the heated space, the T244 Selectrastat provides a high-resolution signal to the amplifier to maintain stability without the hunting or lag common in traditional systems. Its compact 2.56-inch by 4.5-inch footprint and Made in the USA construction ensure it fits existing HVACR control layouts during field replacements. For technicians, this part is the go-to for ensuring make-up air heating equipment delivers consistent comfort in demanding commercial environments.

• Dual-Function Design: Consolidates the temperature sensor and selector dial into one unit for faster installation and simplified wiring.
• Precise Modulation: Engineered specifically for Selectra electronic gas modulation, providing superior accuracy over mechanical butterfly valves.
• Field Calibratable: Features an internal potentiometer for fine-tuning the space temperature calibration to match on-site thermometer readings.
• Broad Compatibility: Fully compatible with TS144 discharge sensors and Selectra Series 44 components used in industrial heating.
• Rugged Reliability: Built for direct fired equipment applications where durability and consistent resistance values are critical for system uptime.

Is the T244 compatible with other temperature ranges?
The T244 is specifically rated for 55-90°F. If your application requires a lower range (40-80°F), you must use the T244A for proper system resistance matching.

How do I verify if my T244 Selectra Stat is functioning?
With the wires to the amplifier terminals 4 and 5 removed, set the dial to the maximum. A standard multimeter should show a resistance reading of 6000 ohms (±1000 ohms). Significant deviations indicate a need for replacement.

Where is the best location to mount this sensor?
Install the Selectrastat in a heated area where it can sense a representative average of the space temperature. Avoid mounting near supply air streams, doors, or heavy machinery that generates localized heat.

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.