Carrier HK02YB159 Pressure Switch Freon NBBBI Certified: National Board certified

NBBBI Certified: National Board certified capacity at 15 PSI to satisfy strict local mechanical codes and safety audits

Optimized Flow Control: Designed specifically as a 1

using a Factory Authorized Part preserves the exact factory tolerances

Technicians and commercial contractors require reliable combustion performance

Carrier HK02YB159 Pressure Switch Freon NBBBI Certified: National Board certifiedThe Carrier HK02YB159 Pressure Switch is a critical OEM replacement part designed for precise HVAC safety monitoring in Carrier, Bryant, and Payne systems. As a veteran grade furnace pressure switch, this component functions by detecting the specific pressure thresholds required for safe combustion and blower operation. Its primary role is to act as a safety limit switch, ensuring that the system shuts down if venting or airflow conditions fall