Can I use this relay for 2-stage heating systems

Can I use this relay with a permanent split capacitor (PSC) motor

Direct OEM Replacement: Eliminates the guesswork of aftermarket sizing for HVAC technicians and licensed contractors

Does it require disassembly before brazing

It features a robust 11/32-32 male nut connector for a secure

Carrier HH18HV170 Limit Switch Els PW 17895 Can I use this relayThe Carrier HH18HV170 Limit Switch is a critical safety component designed for precise thermal regulation in Carrier, Bryant, and Payne heating systems. This OEM replacement part features a normally closed (NC) configuration, engineered to open on temperature rise at 170F and automatically reset when the system cools to 140F. Built with a snap action disc mechanism, the high limit switch ensures a rapid and reliable electrical break to prevent heat