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When diagnosing Weil McLain boiler parts
such as the FRHS series
including models like the 15-B2 through 175-B3
provided the voltage remains within ±10% of the 24VDC rating
Carrier HH79AZ001 Sensor Els PW 17895 When diagnosing Weil McLain boilerFor 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
