Carrier HK02ZB075 Low Pressure Switch 95-50 PSI

The Carrier HK02ZB075 is a low pressure control switch designed for HVAC refrigeration systems. This automatic reset pressure switch monitors refrigerant pressure and protects the compressor from damage due to low refrigerant charge or loss of airflow across the evaporator coil.

Key Features:

• Pressure range: 50-95 PSI cut-in/cut-out
• Automatic reset operation for convenient system protection
• Direct replacement for Carrier and Bryant HVAC equipment
• Durable construction for reliable long-term performance
• Standard 1/4-inch male flare connection

This pressure switch is commonly used in residential and commercial air conditioning systems to prevent compressor operation when system pressure drops below safe levels. When refrigerant pressure falls below the cut-out setpoint, the switch opens to stop the compressor. Once pressure is restored to the cut-in point, the switch automatically resets and allows normal operation to resume.