Mitsubishi Electric pac-sj87rj-e Joint Pipe 1/4 to 3/8 Inch A2L

Product Description

The MITSUBISHI ELECTRIC pac-sj87rj-e is a refrigerant joint pipe fitting designed to transition from a 1/4-inch unit-side connection to a 3/8-inch pipe-side connection in split and multi-split HVAC systems. This adapter is rated for use with A2L low-GWP refrigerants, making it suitable for modern systems that use mildly flammable next-generation refrigerants such as R-32 or R-454B. HVAC technicians use this fitting when connecting indoor unit refrigerant lines to field piping of a larger diameter. It is sold individually and is an OEM-specified component for proper system assembly.

This joint pipe is intended for use in residential and light commercial ductless or multi-split refrigerant systems where the indoor unit connection port is 1/4 inch and the field refrigerant line is 3/8 inch. It is particularly relevant in installations involving newer A2L-rated equipment where OEM-specified fittings are required to maintain refrigerant system integrity and comply with equipment warranty and listing requirements. HVAC technicians performing new installations or refrigerant circuit work on compatible Mitsubishi Electric systems would source this fitting as part of the line set connection assembly.

Key Features

• Transitions refrigerant line from 1/4-inch unit port to 3/8-inch field pipe
• Rated for A2L mildly flammable refrigerant service
• OEM component for proper system fit and refrigerant compatibility
• Sold individually for precise quantity ordering

Compatibility

Designed for use with Mitsubishi Electric split and multi-split HVAC systems utilizing A2L refrigerants where a 1/4-inch to 3/8-inch refrigerant line transition is required. Consult Mitsubishi Electric installation documentation to confirm applicability to the specific system being serviced.

Installation Notes

Installation should be performed by a licensed HVAC technician certified to handle A2L refrigerants, as applicable regulations and local codes may require specific handling procedures for mildly flammable refrigerants. Recover all refrigerant and isolate the system before disconnecting or modifying any refrigerant circuit components. Follow the equipment manufacturer installation manual for torque and connection procedures specific to the system. Verify that all fittings and line set components are rated for the refrigerant type in use before completing the circuit.

Technical Specifications

• Unit-Side Connection Size: 1/4 inch
• Pipe-Side Connection Size: 3/8 inch
• Refrigerant Compatibility: A2L
• Unit of Measure: Each

Standard Information

• Brand: MITSUBISHI ELECTRIC
• Manufacturer Part Number: pac-sj87rj-e