Carrier HH18HA195 Limit Switch Els PW 17895 critical for maintaining boiler efficiency

critical for maintaining boiler efficiency and preventing sensor lag in HVAC hydronic applications

If the furnace high limit switch trips frequently

Common Questions Is the Danfoss 117U1021 interchangeable with the 117U6021

The assembly operates at 120V AC with a current rating of 3

Carrier HH18HA195 Limit Switch Els PW 17895 critical for maintaining boiler efficiencyThe Carrier HH18HA195 Limit Switch is a critical safety component designed for furnace high temperature protection. This factory spec manual reset limit switch features a snap disc design that is calibrated to open the electrical circuit at a precise 195F cutout temperature. As a normally closed (NC) SPST switch, it maintains continuity during standard heating cycles but breaks the 24V or line voltage circuit to the gas valve or inducer motor if an