Once opened

Does this kit include a potential relay or a PTC device

Can I run the SST20 unit without the prefilter

Diagnostic Reliability: Simplifies troubleshooting with standardized wiring interfaces for quick field connection

it allows for precise airflow balancing across heating and cooling cycles

Carrier HK02ZB325 Pressure Switch Freon Once openedThe 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