Carrier HK02ZB042 Pressure Switch 323613-751 Technicians should periodically inspect the

Technicians should periodically inspect the inlet strainer and clear any heavy sediment

It must be installed in sequence with a dedicated safety shut-off valve

this OEM Carrier TXV features a hard shutoff design to prevent refrigerant migration during the off-cycle

Engineered with a 3-inch insertion length and a board-mount configuration

ensuring it meets original factory performance specifications

Carrier HK02ZB042 Pressure Switch 323613-751 Technicians should periodically inspect theThe Carrier HK02ZB042 Pressure Switch is a critical OEM safety component designed for precise monitoring of combustion air and venting pressure within high efficiency Carrier, Bryant, and Payne furnaces. Factory calibrated to 42# Open and 57# Close, this low pressure switch ensures the inducer motor is moving sufficient air to clear combustion byproducts before allowing the ignition sequence to proceed. It features a 36" lead and a durable diaphragm