The Maxitrol TS144C is a high-precision discharge air temperature sensor designed specifically for integration with Selectra indirect gas-fired heating systems. Engineered for modulation control, this thermistor-based sensor monitors airstream temperatures to provide real-time feedback to the amplifier, ensuring accurate burner adjustment. It features a dual-range capability, operating within 20°F to 60°F for minimum settings and 80°F to 140°F for maximum output. When installed with a mixing tube, the TS144C optimizes HVAC system efficiency by preventing rapid cycling and maintaining consistent air delivery. This component is essential for industrial makeup air units and commercial heating applications where precise thermal management controls are required. Its rugged construction ensures long-term reliability in high-velocity duct environments, making it a standard replacement part for technicians maintaining Maxitrol electronic modulation configurations. Proper calibration of the mixing tube sensor ensures the gas valve responds accurately to load changes, maintaining setpoint integrity across various HVACR environmental conditions. Key Benefits: Precise Modulation: Facilitates tight temperature control within a 20°F to 140°F operating spectrum. Direct Compatibility: Designed for seamless integration with Series 14 Selectra systems. Enhanced Stability: Prevents hunting and thermal overshoot when paired with the correct mixing tube. Industrial Durability: Built to withstand continuous exposure to high-velocity airflow in commercial ductwork. Common Questions: Where should the TS144C sensor be located? The sensor should be installed in the discharge ductwork at a point where the air is thoroughly mixed, typically after the blower, to ensure accurate temperature sensing. Can this sensor be used without a mixing tube? While the sensor captures data, using a mixing tube is highly recommended to average the air temperature across the duct profile for more stable modulation. What causes a Selectra system to drift from the setpoint? System drift is often caused by a fouled 144 series sensor or improper placement, leading to inaccurate resistance readings being sent to the amplifier. 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.
