Carrier HK02SA445 Pressure Switch 319825-402 5-inch (48 frame) motors will

5-inch (48 frame) motors will result in improper tension and potential failure

always verify the 24V secondary voltage from the transformer and ensure all logic harnesses are seated properly to avoid ghost faults in the system's operation

the solid copper ODF stubs on the DHY0154 allow for easy brazing without the risk of leak-prone mechanical joints

This part is a primary 90+ NTGM furnace transition and is compatible with numerous series including GCK

Carrier HK02SA445 Pressure Switch 319825-402 5-inch (48 frame) motors willThe Carrier HK02SA445 is a critical OEM high pressure safety switch designed for precise refrigerant circuit monitoring in residential and commercial condensing units. This high pressure switch is factory calibrated with a 660 PSI cutout and a 505 PSI cut in (reset) threshold, ensuring the compressor remains protected against thermal overload and mechanical failure during extreme head pressure conditions. As a genuine Carrier replacement part, it