Parker fn.lsin385812015 Copper Line Set 15 Ft 3/8x5/8

Product Description

The PARKER fn.lsin385812015 is a TwinGel preinsulated copper line set designed for refrigerant piping in residential and commercial cooling and heating systems. It pairs a 3/8-inch suction line with a 5/8-inch liquid line in a single mechanically attached assembly, reducing installation time and the risk of misrouting. The total run length is 15 feet. Flare nuts are included on both lines. The suction line insulation is 1/2 inch thick closed-cell foam with a white polyethylene outer jacket. The assembly carries UL723 CLASSIFIED listing (R39562, ASTM E84 25/50 flame and smoke) and has been performance verified for UV resistance rated for a minimum of 5 years of outdoor exposure. Licensed HVAC technicians install this product.

This line set is suited for ductless mini-split, VRF, heat pump, and unitary system installations in both residential and light commercial applications. The suction and liquid lines are mechanically bonded together, eliminating the need for field taping or bundling during the pull. The outer jacket protects the foam insulation from tearing during routing through walls, ceilings, and conduit. Foot markings are printed incrementally along the insulation to support accurate initial refrigerant charge calculations and to minimize copper waste on cut-to-length installations. The insulation surface is paintable, allowing the exposed line set to be matched to surrounding surfaces after installation.

Key Features

• Mechanically attached suction and liquid lines for single-run installation without field bundling
• UL723 CLASSIFIED R39562 per ASTM E84 with 25/50 flame and smoke ratings
• UL Performance Verified UV resistance rated for a minimum of 5 years of outdoor exposure
• White polyethylene outer jacket protects foam insulation during pulling and routing
• Incremental foot markings on insulation support accurate initial charge and reduce copper waste
• Rated for high-pressure refrigerant applications including R-410A systems
• Paintable insulation surface for aesthetic blending with walls, siding, or trim

Compatibility

Designed for use in ductless mini-split, VRF, heat pump, and unitary refrigerant systems where high-pressure gases are used as the refrigeration source, including R-410A applications.

Installation Notes

Installation should be performed by a licensed HVAC technician in accordance with applicable mechanical codes and the equipment manufacturer instructions. Isolate and recover all refrigerant from the system before disconnecting existing line sets. Flare connections must be made with calibrated flare tooling to manufacturer specification; over-flaring or under-flaring increases the risk of refrigerant leaks. Do not kink the copper tubing during routing, and support the line set at intervals appropriate for the run length to prevent sagging or vibration contact with structure.

Technical Specifications

• Suction Line Diameter: 3/8 inches
• Liquid Line Diameter: 5/8 inches
• Insulation Thickness: 1/2 inch
• Line Set Length: 15 feet
• Outer Jacket Material: White polyethylene
• Flare Nuts Included: Yes
• UV Resistance Rating: UL Performance Verified, minimum 5 years
• Certification: UL723 CLASSIFIED R39562, ASTM E84 25/50
• Refrigerant Compatibility: High-pressure refrigerants including R-410A
• Unit of Measure: Each

Standard Information

• Brand: PARKER
• Manufacturer Part Number: fn.lsin385812015