Carrier HH18HV120 Limit Switch R-22 Designed with a robust 1/4"

Designed with a robust 1/4" NPT connection

Modified linear flow allows for consistent

maintaining strict safety protocols

8 EER and a robust suspension design

the probe should be removed and inspected annually for scale or sediment accumulation to ensure proper conductivity between the probe and the boiler water

Carrier HH18HV120 Limit Switch R-22 Designed with a robust 1/4"The 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