Cambridge-lee Industries 061212300B Line Set 30 Feet

Product Description

The CAMBRIDGE-LEE INDUSTRIES 061212300B is a pre-insulated copper line set designed to connect the indoor and outdoor units of split-system and ductless mini-split air conditioning and heat pump systems. It ships as a matched pair: a 3/8-inch liquid line and a 3/4-inch suction line, each running 30 feet. The suction line is wrapped in 3/4-inch black polyethylene hard-shell insulation that is UV resistant and rated for R-410A refrigerant systems. The exterior features a rugged, anti-tear construction that reduces damage during pulling and routing on the job site. Both lines terminate with plain ends. Insulation is marked every foot for quick field measurement during installation.

This line set is suited for residential and light commercial applications including ductless mini-split systems, variable refrigerant flow (VRF) commercial systems, and conventional split-system air conditioners and heat pumps. The 30-foot length is a common run distance in single-story residential installs and compact commercial builds. The anti-tear exterior and pre-paired configuration reduce labor time on new installations and refrigerant line replacements. Licensed HVAC technicians handling R-410A equipment are the primary installers of this product.

Key Features

• Matched pair: 3/8-inch liquid line and 3/4-inch suction line, 30 feet each
• 3/4-inch black polyethylene hard-shell insulation on suction line
• UV-resistant insulation rated for R-410A refrigerant
• Rugged, anti-tear exterior for easier routing and pull-through installations
• Insulation marked every foot for field measurement
• Plain end x plain end connections for field brazing or flare fitting
• Meets ASTM E84/C1427 and UL standards; copper meets ASTM B743/B88

Compatibility

Rated for use with ductless mini-split systems, VRF commercial systems, and split-system air conditioners and heat pumps using R-410A refrigerant. Suitable for new installations and line set replacements where a 30-foot run with 3/8-inch liquid and 3/4-inch suction line sizing is specified.

Installation Notes

Installation must be performed by a licensed HVAC technician certified to handle refrigerants under EPA Section 608 requirements. Recover and reclaim any existing refrigerant charge before removing or modifying an existing line set. Plain-end connections require field brazing or compatible flare fittings; follow local mechanical codes and manufacturer torque and joint specifications. Support the line set at regular intervals per applicable mechanical code to prevent sagging and protect the insulation jacket from abrasion.

Technical Specifications

• Liquid Line Diameter: 3/8 inches
• Suction Line Diameter: 3/4 inches
• Length: 30 feet
• Insulation Thickness: 3/4 inches
• Insulation Material: Black Polyethylene Hard Shell
• Tube Material: Copper
• End Connection: Plain End x Plain End
• Refrigerant Compatibility: R-410A
• UV Resistance: Yes
• 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: 061212300B