040-119

This high-performance air pressure switch serves as a critical safety and monitoring component for commercial and residential HVAC systems. As an air proving switch, it is engineered to detect specific pressure differentials, ensuring that your heating or cooling equipment maintains proper airflow before allowing the system to proceed with its operational cycle. If airflow is interrupted or insufficient, this switch acts as a vital safeguard to prevent equipment damage or unsafe operating conditions. Ideal for rooftop units and large-scale air handlers, this precision-calibrated part is essential for maintaining the efficiency and reliability of your climate control system.
Type: Air Pressure Proving Switch
Size: Standard compact replacement part
Application: Used in HVAC systems, rooftop units, and air handling equipment to monitor airflow and pressure differentials for safe system operation.
Specifications: Cut-in setpoint: 7; Cut-out setpoint: 22; functions as a safety limit and air proving sensor.