Mitsubishi Electric pac-sk89rj-e Joint Pipe A2L

Product Description

The MITSUBISHI ELECTRIC pac-sk89rj-e is a joint pipe fitting designed to transition refrigerant line connections from a 0.5-inch unit-side port to a 0.625-inch pipe-side connection. This adapter fitting is engineered for use with A2L refrigerant systems, making it suitable for modern mini-split and VRF installations where mildly flammable low-GWP refrigerants such as R-32 or R-454B are specified. Licensed HVAC technicians install this fitting during line set connections or system modifications that require a step-up in tubing diameter. Precise fitment ensures leak-free joints and maintains system integrity across the refrigerant circuit.

This joint pipe is intended for use in residential and light commercial ductless mini-split and VRF refrigerant systems that utilize A2L-classified refrigerants. It is applied at the point where the indoor unit stub-out or service port must connect to a larger-diameter field-supplied refrigerant line. The fitting is sold individually and is appropriate for new installations as well as service calls requiring a transition fitting at the unit connection.

Key Features

• Transitions refrigerant line from 0.5-inch unit port to 0.625-inch pipe connection
• Rated for use with A2L mildly flammable refrigerants
• OEM Mitsubishi Electric component for confirmed fitment on compatible systems
• Sold as individual unit for precise quantity ordering

Compatibility

Designed as an OEM-style transition fitting for Mitsubishi Electric mini-split and VRF refrigerant systems utilizing A2L refrigerants with a unit-side connection of 0.5 inches and a field pipe side of 0.625 inches.

Installation Notes

Installation must be performed by an EPA Section 608 certified HVAC technician familiar with A2L refrigerant handling procedures and local mechanical codes. Recover all refrigerant and confirm the system is fully de-pressurized before opening any refrigerant circuit. Follow manufacturer torque and flaring specifications for all refrigerant line connections, and verify joint integrity with a leak detector rated for A2L refrigerants before system startup. Consult applicable local codes and the equipment installation manual for A2L-specific ventilation and ignition-source requirements.

Technical Specifications

• Unit-Side Connection: 0.5 inches
• Pipe-Side Connection: 0.625 inches
• Refrigerant Classification: A2L
• Unit of Measure: Each

Standard Information

• Brand: MITSUBISHI ELECTRIC
• Manufacturer Part Number: pac-sk89rj-e