Leak Prevention: High-compression recovery ensures a gas-tight and water-tight seal against the header casting faces

securing the internal components without interfering with 5/32" O

Engineered for use with Danfoss TE 5 expansion valves

this unit is built for technical reliability in residential and light commercial gas appliance installation

Carrier HH18HA187 Limit Switch Leak Prevention: High-compression recovery ensuresThe Carrier HH18HA187 Limit Switch is a critical OEM replacement part designed for high limit safety monitoring in residential and commercial gas furnaces. This SPST normally closed disc style switch features a fixed 180 degree open setpoint and a 80 degree close reset point, ensuring the heat exchanger does not exceed safe operating temperatures. Engineered for automatic reset functionality, the HH18HA187 integrates seamlessly into the safety string