Carrier HH12ZB220 Limit Switch ensuring precise bolt-hole alignment and

ensuring precise bolt-hole alignment and hardware fitment

it ensures full compatibility with specific furnace series

once the special stem nut and jam nut are secured

If you use a fast-acting fuse in these applications

Carrier HH12ZB220 Limit Switch ensuring precise bolt-hole alignment andThe Carrier HH12ZB220 Limit Switch is a critical safety component designed for high limit protection in residential furnaces, packaged units, and air handlers. Engineered as a normally closed (NC) switch, this part initiates a system cutout when the 220F open temperature is reached, effectively preventing heat exchanger damage and hazardous operating conditions. Once the plenum cools to the 180F close temperature, the bimetal disc automatically