Maxitrol TS144D Sensor

The Maxitrol TS144D Sensor is a high-precision discharge air temperature sensor specifically engineered for Selectra Series 44 electronic gas flame modulation systems. For contractors managing direct-fired equipment, this sensor provides the critical feedback loop required to maintain stable discharge temperatures. It features a dual-range capability, operating with a minimum discharge air temperature of 20°F to 60°F and a maximum discharge air temperature of 35°F to 75°F. Designed for integration with a mixing tube, the TS144D ensures the amplifier receives accurate resistance signals to modulate gas flow via electronic modulator-regulator valves.

Built to replace mechanical mod motors and butterfly valves, this HVAC temperature sensor offers instantaneous response to fluctuating air streams. To ensure proper system performance, the TS144D must be paired with an A1044D amplifier or compatible A1044U series controllers that match its specific temperature suffix. Reliable industrial gas modulation depends on this sensor's ability to limit discharge air within the specified setpoints, preventing equipment cycling and ensuring consistent comfort levels in commercial air handling applications.

Key Benefits

• System Compatibility: Purpose-built for Maxitrol Series 44 modulation systems and A1044D amplifiers.
• Precise Range Control: Specifically calibrated for low-temperature applications with a 35°F to 75°F max discharge air setpoint.
• Rapid Response: Provides continual adjustment of gas flow, outperforming traditional mod motors in response time.
• Robust Installation: Designed to be housed within a Maxitrol mixing tube for accurate sensing in high-velocity air streams.
• Reduced Mechanical Wear: Replaces moving parts with solid-state electronic sensing for improved system longevity.

Common Questions

Does this sensor require a specific mixing tube?
Yes, for accurate air temperature sensing, the TS144D should be installed in a Maxitrol mixing tube (such as the MT1 or MT2 series) located in the discharge air stream.

Can I use the TS144D with a Series 14 amplifier?
No. The TS144D is part of the Series 44 family. Series 14 systems typically use the TS114 series sensors. Always match the sensor suffix to your amplifier suffix for compatibility.

What happens if the sensor circuit shorts?
A short in the sensor circuit will typically cause the modulation valve to move to a default position (often high fire or low fire depending on the amplifier configuration). Resistance should be checked across terminals to verify sensor integrity.

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.