Carrier HK02ZB063 Low Pressure Switch, 22 PSI, 7 PSI Differential

Description

Carrier HK02ZB063 Low Pressure Switch Overview

The Carrier HK02ZB063 is an OEM low pressure switch engineered to protect refrigerant circuits in Carrier HVAC systems. With a 22 PSI cut-out set point and a 7 PSI differential, this switch monitors suction-side pressure and interrupts system operation when pressure drops below safe operating thresholds — helping prevent compressor damage caused by refrigerant loss, blocked airflow, or other low-pressure fault conditions.

Key Features

• OEM Carrier replacement low pressure switch
• 22 PSI cut-out set point for reliable low-pressure detection
• 7 PSI differential for accurate and stable pressure control
• Protects compressor from damage due to low refrigerant pressure
• Direct OEM replacement for compatible Carrier systems
• Designed for use in refrigerant circuit protection applications

Application

The HK02ZB063 is a direct OEM replacement pressure switch intended for use in Carrier residential and light commercial HVAC equipment. It is typically installed on the low-pressure (suction) side of the refrigerant circuit and will open the control circuit when system pressure falls to or below the 22 PSI set point, automatically resetting once pressure recovers by the 7 PSI differential (approximately 29 PSI). Always consult the equipment service manual to confirm compatibility before installation.

Specifications

• SKU: HK02ZB063
• Brand: Carrier
• Type: Low Pressure Switch
• Cut-Out Set Point: 22 PSI
• Differential: 7 PSI
• Cut-In (Reset) Point: Approximately 29 PSI
• Application: Refrigerant circuit low-pressure protection