Cambridge 223520 Mini Split Line Set 3/8x5/8 in 25 Ft

Product Description

The CAMBRIDGE 223520 is a mini split line set designed to connect the indoor air handler to the outdoor condensing unit in a ductless mini split system. This line set includes a 3/8-inch suction line and a 5/8-inch liquid line, running a total length of 25 feet. It ships without a communication wire, making it suited for systems that use separate wiring or where an existing wire run is already in place. HVAC technicians install this line set during new mini split installations or when replacing damaged refrigerant lines on an existing system.

This line set is used in residential and light commercial ductless mini split applications. The 25-foot run length fits standard single-zone installations where the indoor and outdoor units are within a typical wall-to-wall distance. It is sized for common mini split configurations that require a 3/8-inch and 5/8-inch line pair. The no-wire design gives technicians flexibility to route control wiring independently or to reuse existing wire infrastructure.

Key Features

• 3/8-inch suction line and 5/8-inch liquid line for standard mini split sizing
• 25-foot total length suits most single-zone residential installations
• No communication wire included, allowing independent wiring flexibility
• Designed for ductless mini split refrigerant line applications

Compatibility

Designed as an OEM-style replacement or new-installation line set for ductless mini split systems requiring a 3/8-inch by 5/8-inch line pair with a 25-foot run length.

Installation Notes

Installation should be performed by a licensed HVAC technician holding an EPA Section 608 certification, as refrigerant line work involves handling regulated refrigerants. Power down the mini split system at the disconnect and breaker before connecting or disconnecting any lines. Use proper flaring or brazing techniques per the system manufacturer guidelines, and pressure-test the line set before charging. Do not overtighten flare fittings, as this can crack the flare seat and cause refrigerant leaks.

Technical Specifications

• Suction Line Diameter: 3/8 inches
• Liquid Line Diameter: 5/8 inches
• Length: 25 feet
• Wire Included: No
• UPC: 75865914675

Standard Information

• Brand: CAMBRIDGE
• Manufacturer Part Number: 223520