this natural gas valve features a standard 3/4 inch NPT connection and is factory-calibrated to a 4 inch WC (Water Column) manifold pressure

ensuring the flame carries over across the port openings effectively

non-relay device

preventing fire hazards and protecting sensitive downstream controls

What air supply is required for this thermostat

Carrier HK02ZB051 Switch Freon this natural gas valve featuresThe Carrier HK02ZB051 Low Pressure Switch is a critical safety component designed for precise refrigerant monitoring in residential and light commercial HVAC systems. This SPST auto reset pressure switch features a compact 1 4 inch SAE female flare connection with an internal valve depressor for direct mounting on service ports. Engineered specifically for R 410A systems, this switch functions as a loss of charge protector by opening the electrical