and normally closed (NC) terminals to ensure the circuit closes upon a temperature rise for cooling stages

reducing mechanical slop and improving close-off reliability in chilled water

Universal Compatibility: Seamlessly integrates with copper

Common Technical Questions: How is the HT32CH220 wired

the HK35AA009 is the current OEM substitute for both the HK25AZ070 and HK25AZ080

Lennox 56W21 Limit Switch 318820-201 and normally closed (NC) terminalsThe Lennox 56W21 Limit Switch is a critical safety component designed for precise thermal monitoring in high efficiency furnaces and air handlers. This L160 30F limit switch is engineered to open the electrical circuit at 160F on a temperature rise and feature an automatic reset once the plenum cools to 130F. As a veteran grade HVAC replacement part, it is a direct match for the Lennox 46105 002 and is compatible with a wide array of Allied Air brands