Carrier HH18HV120 Limit Switch 324846-701 This integrated boiler control monitors

This integrated boiler control monitors ignition timing

which protects the compressor from premature failure

or a manifold pressure drop that causes the flame to rollout or extinguish shortly after startup

ensuring efficient fluid control in industrial boiler systems and laundry equipment

Carrier HH18HV120 Limit Switch 324846-701 This integrated boiler control monitorsThe Carrier HH18HV120 Limit Switch is a critical safety component designed for precise thermal regulation within HVAC systems, specifically for Carrier, Bryant, and Payne furnace models. This OEM replacement part operates as an automatic reset thermal disc, calibrated to open the circuit when temperatures reach 120F and close (auto reset) when they drop to 90F. As a veteran technician knows, maintaining the integrity of the furnace high limit switch