The Maxitrol TS144E is a high-precision discharge air temperature sensor engineered for integrated use with Selectra modulation systems. Designed to be installed within a mixing tube, this thermistor-based component provides real-time feedback to the electronic controller to maintain consistent environmental parameters. It features a dual-range sensing capability with a 20-60°F minimum setpoint and a 60-120°F maximum discharge range. For technicians troubleshooting indirect-fired gas heaters or makeup air units, the TS144E ensures the modulating gas valve receives accurate resistance signals to prevent hunting and short-cycling. Its rugged construction facilitates reliable performance in high-airflow environments where precise HVAC temperature control is critical for equipment longevity. When replacing a failed Maxitrol sensor, verify the 12-inch lead length and sensing element positioning within the airstream to ensure optimal response times and system calibration. Technical Specifications and Benefits Dual Temperature Range: Supports a 20-60°F minimum and 60-120°F maximum discharge air threshold for versatile application. Selectra System Compatibility: Seamlessly integrates with Series 14 and Series 44 modulating electronic gas flame modulation systems. Mixing Tube Housing: Specifically designed for duct sensor placement to ensure accurate sampling of mixed air temperatures. Fast Thermal Response: Reduced lag time in resistance changes allows the controller to adjust gas flow instantly for stable discharge air. OEM Precision: Direct replacement part ensures the original electrical characteristics of the control loop are maintained. Common Questions How do I test the Maxitrol TS144E sensor for failure? Use a multimeter to measure the DC resistance across the sensor leads. Compare the readings against the Maxitrol resistance chart relative to the ambient temperature; an open circuit or infinite resistance indicates a failed thermistor element. Does the TS144E require a specific mounting orientation? Yes, the sensor must be used with the appropriate MT1-12 or MT2-12 mixing tube and positioned where it can accurately sample the average discharge air temperature, typically downstream of the blower. Can the TS144E be used with other modulation brands? No, this sensor is specifically calibrated for the voltage and resistance requirements of Maxitrol Selectra systems and may provide inaccurate data if interfaced with third-party controllers. 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.
