Description
Restore reliable temperature control and protection in your furnace or air handler with the Carrier HH12ZB220 limit switch. This factory-authorized component is engineered to exact specifications, ensuring proper fit and function in compatible Carrier, Bryant, and Payne systems.
Key Features
- Designed to open at approximately 220°F and close at approximately 180°F, making it suitable for high-limit applications in many gas furnaces.
- Compact “3-inch” form factor, making it a direct-fit replacement for many older systems.
- Compatible with models previously using legacy part numbers like HH12ZA219, HH12ZA223.
- Durable construction designed for typical HVAC duty—ensuring consistent response when temperature limits are exceeded.






