The HK02ZA428 is a Carrier/Bryant/Payne OEM high-pressure switch, also referred to as a Pressurestat.
The HK02ZA428 is a Carrier/Bryant/Payne OEM high-pressure switch, also referred to as a Pressurestat. It’s a safety and control component used in HVAC systems to monitor refrigerant pressure and protect the compressor from operating under unsafe conditions.