3/8 Line Set 50ft – Refrigeration Copper Coil

3/8 Line Set 50ft Refrigeration Copper Coil

3/8 Line Set 50ft is an individual copper tubing coil designed for compatible HVAC and refrigeration applications. It has a nominal diameter of 3/8 inch and provides approximately 50 feet of continuous tubing for professional refrigerant-line installations.

This product allows installers to measure, route and cut the amount of copper tubing required for a specific project. Its coiled format simplifies transportation and provides installation flexibility when connecting compatible indoor and outdoor equipment.

3/8 Line Set 50ft Product Configuration

The 3/8 Line Set 50ft consists of one 3/8-inch copper refrigeration coil. Despite the product’s current name, it should not automatically be considered a complete two-pipe HVAC line set.

A typical split-system installation commonly requires separate liquid and suction lines with different diameters. Additional copper tubing, insulation, fittings or accessories may therefore be required to complete the refrigerant circuit.

Review the exact equipment installation instructions before ordering. The outdoor and indoor unit documentation identifies the required liquid-line diameter, suction-line diameter, maximum equivalent length and permitted changes in elevation.

Three-Eighths-Inch Copper Tubing

The 3/8 Line Set 50ft has a nominal tubing diameter of 3/8 inch. This dimension is commonly used for a liquid refrigerant line in many residential HVAC systems, but compatibility varies by equipment model and capacity.

Never select refrigerant tubing based solely on system tonnage or an existing connection. Equipment manufacturers may specify different pipe diameters depending on refrigerant type, line length, vertical separation and approved system combination.

Using an incorrect diameter can affect refrigerant velocity, pressure drop, oil return, capacity and overall system performance. A qualified HVAC professional should verify the required tubing size.

Continuous 50-Foot Coil

The 3/8 Line Set 50ft provides approximately 50 feet of continuous copper tubing. A long continuous coil allows installers to create an appropriately sized run while reducing unnecessary joints.

The tubing can be cut to the required length using an approved copper tubing cutter. The cut should remain square, clean and free from burrs that could restrict refrigerant flow or contaminate the system.

Any unused tubing should be stored with its ends sealed to prevent moisture, dust and debris from entering. Contaminants inside refrigeration tubing can damage components and interfere with reliable operation.

Routing and Bend Protection

The 3/8 Line Set 50ft should be unrolled carefully rather than pulled from the side of the coil. Improper handling can flatten, twist or kink the tubing.

Use an approved tubing bender when necessary and maintain an appropriate bend radius. A kinked or crushed section should not be installed because deformation can restrict refrigerant flow.

The completed route should be protected from sharp edges, vibration, impact and excessive movement. Suitable supports should hold the copper securely without damaging or compressing it.

Refrigerant Compatibility

Copper tubing suitability must be confirmed for the refrigerant, operating pressure and equipment involved. Modern HVAC systems may use R-32, R-454B, R-410A or another refrigerant specified by the manufacturer.

Refrigerants must never be mixed or substituted. A2L refrigerants such as R-32 and R-454B require approved tools, procedures, components and safety practices.

Existing copper tubing should not automatically be reused for a new system. A professional must evaluate its size, wall thickness, condition, cleanliness, previous refrigerant and applicable manufacturer requirements.

Insulation Requirements

The 3/8 Line Set 50ft does not include insulation unless it is specifically shown and identified with the product. Some applications may not require insulation on a liquid line, while other equipment instructions or environmental conditions may require it.

The suction or vapor line typically requires properly sized closed-cell insulation. Insulation thickness and UV protection depend on the equipment, climate, location and local codes.

Always follow the equipment manufacturer’s insulation requirements rather than assuming that every refrigerant line uses the same materials.

Professional Installation Required

Refrigerant-line installation should be completed by a qualified HVAC professional. The technician must verify pipe sizing, routing, joining methods, supports, insulation and equipment compatibility.

The tubing should be kept clean and dry throughout installation. When brazing is required, accepted HVAC procedures should be followed to limit internal oxidation and protect nearby components from heat.

The completed system must be pressure tested, evacuated and commissioned according to the equipment manufacturer’s instructions. Refrigerant handling must comply with applicable federal, state and local requirements.

Product Features

• Product type: Individual refrigeration copper coil
• Nominal tubing diameter: 3/8 inch
• Approximate total length: 50 feet
• Flexible coiled configuration
• Can be measured and cut for the installation
• Suitable for compatible HVAC and refrigeration applications
• Does not constitute a complete two-line set by itself
• Insulation is not identified as included
• Equipment compatibility must be verified before purchase
• Professional installation required

Product and Refrigerant Resources

Browse additional refrigerant copper line sets and accessories from Xpress Supply. Review the official EPA Section 608 refrigerant management information before servicing HVAC or refrigeration equipment.

Choose the 3/8 Line Set 50ft when a compatible installation requires a continuous 3/8-inch refrigeration copper coil. Confirm the equipment specifications, refrigerant, required line sizes and installation accessories before ordering.