Carrier HH79AZ001 Sensor

For veteran technicians looking for a 1:1 OEM replacement for the Honeywell C7150B1020, the Carrier HH79AZ001 Sensor is the direct equivalent. This duct temperature sensor is a critical HVAC thermistor assembly designed for high-accuracy mixed air sensing and discharge air monitoring. It utilizes a 3750-ohm NTC thermistor element that provides precise resistance feedback to economizer logic modules, such as the W973 or M7415 series, ensuring optimal damper positioning and system efficiency. Built with a rugged phenolic board and a thermistor sensing element, this component is engineered to withstand the demanding environments of commercial rooftop units and industrial air handlers. Whether you are troubleshooting stratified air issues or performing a routine economizer sensor replacement, the HH79AZ001 delivers the reliable thermal resistance data needed to maintain tight setpoint control without the need for manual calibration. This genuine Carrier part ensures seamless integration with existing Carrier and Bryant package units.

• Direct Cross-Compatibility: This unit is functionally identical to the Honeywell C7150B1020, simplifying inventory for HVAC contractors.
• Precise Mixed Air Control: High-sensitivity 3750-ohm thermistor assembly ensures accurate economizer logic performance and energy savings.
• Durability in Harsh Flows: Designed for duct mount or discharge air applications with a robust build that handles high-velocity airflow.
• Simplified Installation: Features standard 1/4-inch quick-connect terminals for fast field wiring and immediate system calibration.

• What is the resistance value of the HH79AZ001? It features a 3750-ohm Negative Temperature Coefficient (NTC) curve, meaning resistance decreases as the sensed air temperature rises.
• Can this be used for outside air sensing? Yes, it is commonly applied for both outside air sensing and mixed air sensing in various Carrier rooftop systems.
• How do I troubleshoot erratic readings? Check for moisture at the terminals or dust accumulation on the sensor surface, as these are common causes of high-resistance faults or skewed data.

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.