Description
The Carrier HK02ZA404 is a safety switch meant for Carrier HVAC systems it is an essential component in the protection of your equipment. Sitting inside the refrigerant line, the HK02ZA404 measures pressure. When pressure goes higher than the set pressure of 650 PSI, the switch shuts down the system to avoid compressor damage or pipe bursts. Likewise, if pressure goes low below the safe operating range of 420 PSI the switch can also trigger a shutdown to prevent various failures due to low refrigerant. By controlling pressure within these parameters the switch protects your Carrier HVAC system from expensive repairs and assures its safe operation.
