The 0151R00185S is designed for a 3/4 inch suction line

this Gen 2 component is engineered for 97% AFUE multi-position furnaces

The standard threaded stem is optimized for push down to open action

This unit is the direct replacement for the legacy ACM1000 model

Key Benefits Direct OEM Compatibility: Specifically engineered as the verified 71902464 replacement motor

Carrier HH18HV120 Limit Switch Els PW 29614 The 0151R00185S is designed forThe Carrier HH18HV120 Limit Switch is a critical safety component designed for precise thermal regulation within HVAC systems, specifically for Carrier, Bryant, and Payne furnace models. This OEM replacement part operates as an automatic reset thermal disc, calibrated to open the circuit when temperatures reach 120F and close (auto reset) when they drop to 90F. As a veteran technician knows, maintaining the integrity of the furnace high limit switch