it prevents burner operation under unsafe venting conditions

ensure the manual gas cock is in the "ON" position and the inlet pressure meets the minimum 5" WC requirement

High Acid Capacity: The charcoal-style desiccant blend captures harmful contaminants that lead to compressor burnout

which provides a dry contact signal for verifying the actuator's position

while the DIN rail mount and surface mounting options ensure a streamlined installation in various control panels

Carrier HK02SA440 Pressure Switch 321894-708 it prevents burner operation underThe Carrier HK02SA440 High Pressure Cutout is a vital OEM replacement pressure switch engineered to protect HVACR systems from extreme internal pressures. This high pressure switch features a 660 PSI cutout and a 505 PSI reset (660 505#), ensuring the compressor shuts down immediately when safety thresholds are exceeded. Designed by Sensata (part number PS80 01 1055), this manual reset pressure control is a factory authorized part for Carrier, Bryant,