773-047

This premium two-stage air pressure switch is a vital safety component for high-efficiency gas furnaces and HVAC systems. Functioning as an air proving sensor, it ensures that the draft inducer motor is creating sufficient airflow for safe combustion. Designed for dual-stage heating units, this switch features precise set points of 0.30" WC and 0.78" WC to manage different firing rates. It is an essential replacement part for resolving ignition failures and error codes related to venting issues, ensuring your furnace operates reliably and safely. Its durable construction provides accurate pressure sensing and long-lasting performance in demanding residential heating applications.
Type: Air Pressure Switch
Size: Standard HVAC control component
Application: High-efficiency residential gas furnaces and two-stage heating systems requiring air proving safety checks.
Specifications: Two-stage operation; Low stage set point: 0.30" WC; High stage set point: 0.78" WC; Diaphragm-actuated sensing mechanism.