This genuine ASCO spare part is optimized for systems handling hot water or low-pressure steam

which concentrate heat and cause the part to fail prematurely when energized

Once opened

it allows for precise airflow balancing across heating and cooling cycles

Utilizing a genuine Carlyle head transblock gasket ensures that your compressor maintains optimal oil pressure and prevents refrigerant bypass

Carrier HK02ZB325 Pressure Switch Freon This genuine ASCO spare partThe Carrier HK02ZB325 Pressure Switch is a critical safety component designed for high pressure cutout applications in residential and commercial HVAC units. Engineered with a 400 PSI cut out and a 325 PSI cut in, this SPST (Single Pole Single Throw) switch monitors refrigerant pressure to protect the compressor from damage during high head pressure events. This OEM Carrier replacement part features a 1 4 inch female SAE flare fitting with a Schrader