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Duotone terrace — saffron brief on the left, garden-folded ledger on the right.
and flame sensing circuits to ensure stable thermal performance
reducing strain on the furnace control board
Secure Seal: Threaded or snap-in geometry provides a reliable mechanical bond to the humidifier base
The DPDT configuration also allows you to switch multiple phases or separate circuits from a single 24V trigger
facilitating long-term boiler pressure regulation in demanding environments
Carrier HH18HA296 Limit Switch 318973-401 and flame sensing circuits toThe Carrier HH18HA296 Limit Switch is a critical OEM replacement part engineered to maintain system integrity by monitoring discharge air or internal temperatures. This assembly serves as a high limit safety device, designed to open the electrical circuit if temperatures exceed the thermal cutout thresholdtypically calibrated around 300F for specific furnace and air handler applications. By integrating this genuine Carrier part, technicians ensure