this motor is the primary direct replacement for HK25MJ172

and gaskets required to stop leaks and restore factory flow levels

Enhanced Safety Logic: High-precision differential pressure sensing prevents the gas valve from opening if exhaust flow is restricted or the blower underperforms

The compressor must be sourced separately based on the specific tonnage and electrical requirements of the HVAC unit

Durable OEM Construction: Built to withstand the harsh environment of a heat exchanger vestibule for reliable long-term switching performance

Siemens Building Technology 544-973 Sensor THPU32HP7Y this motor is the primaryThe Siemens Building Technology 544 973 Sensor is a professional grade, flush mount solution designed for critical HVAC and building automation systems (BAS). Built with a 1k Ohm Platinum RTD (Pt RTD) sensing element with a 375 alpha coefficient, this sensor provides high accuracy resistance output for precise temperature monitoring. Unlike standard wall mounted units, the 544 973 features a low profile metal cover plate made of brushed stainless