Heatcraft Refrigeration 2891402 Pressure Switch
The Heatcraft Refrigeration 2891402 Pressure Switch is an essential adjustable low-pressure control designed for high-stakes commercial refrigeration and HVAC applications. This genuine OEM replacement part provides critical protection for compressors by monitoring suction pressure and interrupting the electrical circuit during low-charge or restricted-flow conditions. Engineered with a Single Pole Single Throw (SPST) configuration, this open-low pressure switch is built for precise operation in walk-in coolers, freezers, and condensing units.
The 2891402 is functionally identical to the Johnson Controls P70AB-1, offering a reliable drop-in solution for legacy systems. It features an adjustable range from 20" Hg to 100 PSI, allowing technicians to fine-tune cut-in and cut-out settings to meet specific manufacturer requirements. This flexibility is vital for maintaining system efficiency and preventing vacuum conditions that can lead to motor burnout or oil contamination. The 1/4" male flare connection ensures a secure, leak-proof interface with standard refrigeration lines.
Professional Benefits:
- OEM Compatibility: Replaces P70AB-1 and P70AB-1D, ensuring exact fitment in Heatcraft, Bohn, and Larkin equipment.
- Compressor Protection: Prevents short-cycling and damage caused by low refrigerant levels or evaporator icing.
- Technical Precision: Adjustable setpoints allow for tight control over pump-down cycles and safety shutdowns.
- Industrial Durability: Robust heavy-duty contacts and internal bellows are designed to withstand the high-vibration environment of a mechanical room.
Common Questions:
Is the Heatcraft 2891402 a direct replacement for the Johnson Controls P70AB-1?
Yes, it is the updated OEM part number for the P70AB-1 series, featuring the same SPST open-low action and adjustable 20"/100# pressure range.
What type of refrigerants is this switch compatible with?
It is designed for use with all common non-corrosive refrigerants used in commercial HVACR systems, including R-22, R-404A, and R-134a.
Can this be used for high-pressure cut-out applications?
No, this is specifically an open-low switch. For high-side protection, a dedicated high-pressure manual or automatic reset switch should be used.
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.
Heatcraft Refrigeration 2891402 Pressure Switch
The Heatcraft Refrigeration 2891402 Pressure Switch is an essential adjustable low-pressure control designed for high-stakes commercial refrigeration and HVAC applications. This genuine OEM replacement part provides critical protection for compressors by monitoring suction pressure and interrupting the electrical circuit during low-charge or restricted-flow conditions. Engineered with a Single Pole Single Throw (SPST) configuration, this open-low pressure switch is built for precise operation in walk-in coolers, freezers, and condensing units.
The 2891402 is functionally identical to the Johnson Controls P70AB-1, offering a reliable drop-in solution for legacy systems. It features an adjustable range from 20" Hg to 100 PSI, allowing technicians to fine-tune cut-in and cut-out settings to meet specific manufacturer requirements. This flexibility is vital for maintaining system efficiency and preventing vacuum conditions that can lead to motor burnout or oil contamination. The 1/4" male flare connection ensures a secure, leak-proof interface with standard refrigeration lines.
Professional Benefits:
- OEM Compatibility: Replaces P70AB-1 and P70AB-1D, ensuring exact fitment in Heatcraft, Bohn, and Larkin equipment.
- Compressor Protection: Prevents short-cycling and damage caused by low refrigerant levels or evaporator icing.
- Technical Precision: Adjustable setpoints allow for tight control over pump-down cycles and safety shutdowns.
- Industrial Durability: Robust heavy-duty contacts and internal bellows are designed to withstand the high-vibration environment of a mechanical room.
Common Questions:
Is the Heatcraft 2891402 a direct replacement for the Johnson Controls P70AB-1?
Yes, it is the updated OEM part number for the P70AB-1 series, featuring the same SPST open-low action and adjustable 20"/100# pressure range.
What type of refrigerants is this switch compatible with?
It is designed for use with all common non-corrosive refrigerants used in commercial HVACR systems, including R-22, R-404A, and R-134a.
Can this be used for high-pressure cut-out applications?
No, this is specifically an open-low switch. For high-side protection, a dedicated high-pressure manual or automatic reset switch should be used.
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
Shipping & Returns
Shipping & Returns
Description
The Heatcraft Refrigeration 2891402 Pressure Switch is an essential adjustable low-pressure control designed for high-stakes commercial refrigeration and HVAC applications. This genuine OEM replacement part provides critical protection for compressors by monitoring suction pressure and interrupting the electrical circuit during low-charge or restricted-flow conditions. Engineered with a Single Pole Single Throw (SPST) configuration, this open-low pressure switch is built for precise operation in walk-in coolers, freezers, and condensing units.
The 2891402 is functionally identical to the Johnson Controls P70AB-1, offering a reliable drop-in solution for legacy systems. It features an adjustable range from 20" Hg to 100 PSI, allowing technicians to fine-tune cut-in and cut-out settings to meet specific manufacturer requirements. This flexibility is vital for maintaining system efficiency and preventing vacuum conditions that can lead to motor burnout or oil contamination. The 1/4" male flare connection ensures a secure, leak-proof interface with standard refrigeration lines.
Professional Benefits:
- OEM Compatibility: Replaces P70AB-1 and P70AB-1D, ensuring exact fitment in Heatcraft, Bohn, and Larkin equipment.
- Compressor Protection: Prevents short-cycling and damage caused by low refrigerant levels or evaporator icing.
- Technical Precision: Adjustable setpoints allow for tight control over pump-down cycles and safety shutdowns.
- Industrial Durability: Robust heavy-duty contacts and internal bellows are designed to withstand the high-vibration environment of a mechanical room.
Common Questions:
Is the Heatcraft 2891402 a direct replacement for the Johnson Controls P70AB-1?
Yes, it is the updated OEM part number for the P70AB-1 series, featuring the same SPST open-low action and adjustable 20"/100# pressure range.
What type of refrigerants is this switch compatible with?
It is designed for use with all common non-corrosive refrigerants used in commercial HVACR systems, including R-22, R-404A, and R-134a.
Can this be used for high-pressure cut-out applications?
No, this is specifically an open-low switch. For high-side protection, a dedicated high-pressure manual or automatic reset switch should be used.
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.
