Cambridge-lee Industries 061212500B Copper Line Set 50 Ft

Product Description

The CAMBRIDGE-LEE INDUSTRIES 061212500B is a pre-insulated copper line set engineered for refrigerant distribution between indoor and outdoor units in split-system and ductless mini-split installations. The set includes a 3/8 inch liquid line and a 3/4 inch suction line, both terminated with plain ends for field flaring or swaging. At 50 feet in length, it suits a wide range of residential and light commercial runs. The 3/4 inch black polyethylene hard-shell insulation on the suction line is UV resistant and rated for R-410A refrigerant, helping maintain system efficiency over the life of the installation. Footage markings appear every foot along the insulation jacket, simplifying measurement during rough-in work.

This line set is designed for ductless mini-split systems, VRF commercial systems, split system air conditioners, and heat pumps where R-410A refrigerant is used. The rugged, anti-tear exterior polyethylene jacket allows the assembly to be pulled through walls, ceilings, and conduit chases with reduced risk of insulation damage during installation. It is appropriate for both new construction and replacement service work in residential and light commercial settings. HVAC technicians installing single-zone or multi-zone ductless systems will find the per-foot markings and durable jacket practical on longer runs.

Key Features

• 3/8 inch liquid line and 3/4 inch suction line in a single 50-foot assembly
• UV-resistant, 3/4 inch black polyethylene hard-shell insulation approved for R-410A systems
• Rugged anti-tear exterior jacket reduces insulation damage during pull-through installations
• Insulation marked every foot for accurate field measurement
• Plain end x plain end connections allow field flaring or swaging to match job requirements
• Meets ASTM E84/C1427 and UL standards; copper tubing meets ASTM B743/B88

Compatibility

Suitable for ductless mini-split systems, VRF commercial systems, split system air conditioners, and heat pumps using R-410A refrigerant where a 3/8 inch liquid line and 3/4 inch suction line configuration is required.

Installation Notes

Installation should be performed by a licensed HVAC technician in accordance with applicable local mechanical codes and the equipment manufacturer's instructions. Shut down and recover all system refrigerant before disconnecting or replacing an existing line set. Plain-end connections require field flaring or swaging with proper tooling rated for ACR copper tubing. Avoid sharp bends that could kink or restrict the refrigerant lines during routing.

Technical Specifications

• Liquid Line Diameter: 3/8 inches
• Suction Line Diameter: 3/4 inches
• Length: 50 feet
• Insulation Thickness: 3/4 inches
• Insulation Material: Black Polyethylene Hard Shell
• Tubing Material: Copper
• End Connection: Plain End x Plain End
• Refrigerant Compatibility: R-410A
• Applicable Standards: ASTM E84/C1427, UL, ASTM B743/B88
• Application: Ductless Mini-Split System, VRF Commercial System, Split System Air Conditioner and Heat Pump

Standard Information

• Brand: CAMBRIDGE-LEE INDUSTRIES
• Manufacturer Part Number: 061212500B