121-513

This high-quality pressure transducer is a critical safety component designed for residential and commercial HVAC systems, particularly gas furnaces and air handling units. Functioning as an air proving switch, it precisely monitors differential air pressure to ensure the draft inducer motor is operating correctly and safely exhausting combustion gases. This part is a common solution for heating systems experiencing ignition failure, intermittent cycling, or specific pressure switch lockout error codes. By providing accurate pressure readings to the system's control board, it ensures peak efficiency and protects the equipment from hazardous operating conditions. This durable sensor is engineered for high-cycle reliability in demanding heating environments.
Type: Air Pressure Switch / Pressure Transducer
Size: Small
Application: Used in gas furnaces, air handlers, and forced-air heating systems to monitor airflow and combustion safety.
Specifications: Safety-critical air-proving functionality; monitors differential pressure levels; high-sensitivity diaphragm mechanism; compatible with forced-draft heating equipment.