Mueller Streamline 100000225 Mini Split Line Set

Product Description

The MUELLER STREAMLINE 100000225 is a pre-insulated mini split line set designed to connect the indoor air handler to the outdoor condensing unit in ductless mini split systems. The set includes a 3/8-inch suction line and a 5/8-inch liquid line, both run at 50 feet in length and wrapped in 1/2-inch insulation. Licensed HVAC technicians install this line set during new mini split installations or system replacements. The insulation protects the copper tubing from condensation and heat gain, helping the system maintain rated efficiency across the full line length.

This line set is suited for residential and light commercial ductless mini split applications where pre-insulated, ready-to-run tubing reduces field labor. The 50-foot run length accommodates most standard installations where the outdoor unit is mounted at grade or on a bracket and the indoor head unit is positioned on an interior wall. Installers working on new construction or retrofit projects benefit from the pre-insulated configuration, which eliminates the need to separately source and apply foam insulation in the field.

Key Features

• 3/8-inch suction line and 5/8-inch liquid line configuration for standard mini split systems
• 50-foot length supports typical residential and light commercial installation distances
• 1/2-inch insulation factory-applied to both lines to reduce condensation and thermal loss
• Pre-paired line set simplifies staging and reduces installation time on the job

Compatibility

Designed as an OEM-style replacement or new-installation line set for residential and light commercial ductless mini split systems requiring a 3/8 x 5/8 line set configuration.

Installation Notes

Installation should be performed by a licensed HVAC technician in accordance with local mechanical codes and the equipment manufacturer's instructions. Power down the indoor and outdoor units before making any refrigerant line connections. Avoid sharp bends in the copper tubing during routing to prevent kinking or restriction of refrigerant flow. The system must be properly evacuated before charging per EPA Section 608 requirements.

Technical Specifications

• Suction Line Diameter: 3/8 inches
• Liquid Line Diameter: 5/8 inches
• Line Length: 50 feet
• Insulation Thickness: 1/2 inch

Standard Information

• Brand: MUELLER STREAMLINE
• Manufacturer Part Number: 100000225