Carrier HK02ZB073 Pressure Switch
The Carrier HK02ZB073 Low Pressure Switch is a critical safety component for protecting refrigeration circuits in Carrier, Bryant, and Payne equipment. This 95/50# low pressure switch is factory-calibrated to interrupt the control circuit when system pressure drops below 50 PSI and automatically reset when it rises to 95 PSI. By preventing the compressor from operating under low-refrigerant or restricted-flow conditions, the HK02ZB073 prevents air and moisture infiltration, which can lead to oil acidification and mechanical failure. As a genuine OEM Carrier replacement part, it ensures precise response times and seamless integration with existing terminal wiring, maintaining the protection levels specified by the manufacturer.
Designed for versatile application, this HVAC pressure switch supports 24V, 115V, and 230V circuits, making it suitable for a wide range of residential and light commercial condensing units and heat pumps. Techs should note the compact 1-inch footprint, allowing for easy installation in tight service ports or within the cabinet's control section. Using an OEM HVAC switch like the Carrier HK02ZB073 eliminates the nuisance trips and calibration drift often associated with universal aftermarket components, ensuring stable operation across an operating temperature range of -20 to 150 degrees Fahrenheit. For service calls involving refrigerant leak detection or compressor protection, this switch is the industry standard for maintaining system integrity.
Key Benefits
- Precision Calibration: Pre-set 95 PSI cut-in and 50 PSI cut-out protects the compressor from vacuum conditions.
- Multi-Voltage Compatibility: Rated for 24/115/230V, bridging the gap between residential and commercial service requirements.
- Universal Fit: Standardized 1/4-inch flare or sweat connection points facilitate rapid field replacement.
- Extreme Durability: Robust construction handles operating environments from -20°F to 150°F without signal drift.
- OEM Reliability: Authentic Carrier HK02ZB073 engineering ensures physical and electrical compatibility with high-efficiency systems.
Common Questions
What are the specific cut-in and cut-out settings for the HK02ZB073?
This switch is calibrated for a 50 PSI cut-out (opens on pressure fall) and a 95 PSI cut-in (closes on pressure rise) to safeguard the refrigeration cycle.
Is the Carrier HK02ZB073 interchangeable with universal pressure switches?
While universal switches exist, this OEM Carrier part is specifically matched to the factory safety parameters of Carrier and Bryant units. Using genuine HVAC parts avoids the risk of improper trip points which can damage the compressor.
What causes a low pressure switch to trip frequently?
Common issues include low refrigerant charge, a restricted filter drier, or a malfunctioning thermal expansion valve (TXV). The HK02ZB073 detects these faults to prevent component damage.
Item is Non Cancelable / Non Returnable
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $51.14
-65%$51.14
$17.90Carrier HK02ZB073 Pressure Switch
The Carrier HK02ZB073 Low Pressure Switch is a critical safety component for protecting refrigeration circuits in Carrier, Bryant, and Payne equipment. This 95/50# low pressure switch is factory-calibrated to interrupt the control circuit when system pressure drops below 50 PSI and automatically reset when it rises to 95 PSI. By preventing the compressor from operating under low-refrigerant or restricted-flow conditions, the HK02ZB073 prevents air and moisture infiltration, which can lead to oil acidification and mechanical failure. As a genuine OEM Carrier replacement part, it ensures precise response times and seamless integration with existing terminal wiring, maintaining the protection levels specified by the manufacturer.
Designed for versatile application, this HVAC pressure switch supports 24V, 115V, and 230V circuits, making it suitable for a wide range of residential and light commercial condensing units and heat pumps. Techs should note the compact 1-inch footprint, allowing for easy installation in tight service ports or within the cabinet's control section. Using an OEM HVAC switch like the Carrier HK02ZB073 eliminates the nuisance trips and calibration drift often associated with universal aftermarket components, ensuring stable operation across an operating temperature range of -20 to 150 degrees Fahrenheit. For service calls involving refrigerant leak detection or compressor protection, this switch is the industry standard for maintaining system integrity.
Key Benefits
- Precision Calibration: Pre-set 95 PSI cut-in and 50 PSI cut-out protects the compressor from vacuum conditions.
- Multi-Voltage Compatibility: Rated for 24/115/230V, bridging the gap between residential and commercial service requirements.
- Universal Fit: Standardized 1/4-inch flare or sweat connection points facilitate rapid field replacement.
- Extreme Durability: Robust construction handles operating environments from -20°F to 150°F without signal drift.
- OEM Reliability: Authentic Carrier HK02ZB073 engineering ensures physical and electrical compatibility with high-efficiency systems.
Common Questions
What are the specific cut-in and cut-out settings for the HK02ZB073?
This switch is calibrated for a 50 PSI cut-out (opens on pressure fall) and a 95 PSI cut-in (closes on pressure rise) to safeguard the refrigeration cycle.
Is the Carrier HK02ZB073 interchangeable with universal pressure switches?
While universal switches exist, this OEM Carrier part is specifically matched to the factory safety parameters of Carrier and Bryant units. Using genuine HVAC parts avoids the risk of improper trip points which can damage the compressor.
What causes a low pressure switch to trip frequently?
Common issues include low refrigerant charge, a restricted filter drier, or a malfunctioning thermal expansion valve (TXV). The HK02ZB073 detects these faults to prevent component damage.
Item is Non Cancelable / Non Returnable
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
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Description
The Carrier HK02ZB073 Low Pressure Switch is a critical safety component for protecting refrigeration circuits in Carrier, Bryant, and Payne equipment. This 95/50# low pressure switch is factory-calibrated to interrupt the control circuit when system pressure drops below 50 PSI and automatically reset when it rises to 95 PSI. By preventing the compressor from operating under low-refrigerant or restricted-flow conditions, the HK02ZB073 prevents air and moisture infiltration, which can lead to oil acidification and mechanical failure. As a genuine OEM Carrier replacement part, it ensures precise response times and seamless integration with existing terminal wiring, maintaining the protection levels specified by the manufacturer.
Designed for versatile application, this HVAC pressure switch supports 24V, 115V, and 230V circuits, making it suitable for a wide range of residential and light commercial condensing units and heat pumps. Techs should note the compact 1-inch footprint, allowing for easy installation in tight service ports or within the cabinet's control section. Using an OEM HVAC switch like the Carrier HK02ZB073 eliminates the nuisance trips and calibration drift often associated with universal aftermarket components, ensuring stable operation across an operating temperature range of -20 to 150 degrees Fahrenheit. For service calls involving refrigerant leak detection or compressor protection, this switch is the industry standard for maintaining system integrity.
Key Benefits
- Precision Calibration: Pre-set 95 PSI cut-in and 50 PSI cut-out protects the compressor from vacuum conditions.
- Multi-Voltage Compatibility: Rated for 24/115/230V, bridging the gap between residential and commercial service requirements.
- Universal Fit: Standardized 1/4-inch flare or sweat connection points facilitate rapid field replacement.
- Extreme Durability: Robust construction handles operating environments from -20°F to 150°F without signal drift.
- OEM Reliability: Authentic Carrier HK02ZB073 engineering ensures physical and electrical compatibility with high-efficiency systems.
Common Questions
What are the specific cut-in and cut-out settings for the HK02ZB073?
This switch is calibrated for a 50 PSI cut-out (opens on pressure fall) and a 95 PSI cut-in (closes on pressure rise) to safeguard the refrigeration cycle.
Is the Carrier HK02ZB073 interchangeable with universal pressure switches?
While universal switches exist, this OEM Carrier part is specifically matched to the factory safety parameters of Carrier and Bryant units. Using genuine HVAC parts avoids the risk of improper trip points which can damage the compressor.
What causes a low pressure switch to trip frequently?
Common issues include low refrigerant charge, a restricted filter drier, or a malfunctioning thermal expansion valve (TXV). The HK02ZB073 detects these faults to prevent component damage.
Item is Non Cancelable / Non Returnable
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
