Cambridge-lee Industries 061412500B Copper Line Set 50 Feet

Product Description

The CAMBRIDGE-LEE INDUSTRIES 061412500B is a pre-insulated copper line set designed for split system air conditioning and heat pump installations. It pairs a 3/8-inch liquid line with a 7/8-inch suction line, both running 50 feet in length. The suction line is wrapped in 3/4-inch black polyethylene hard-shell insulation rated for UV resistance and approved for use with R-410A refrigerant. Insulation is marked every foot for easy measurement during rough-in. The rugged, anti-tear exterior reduces the risk of jacket damage during pulls through tight spaces or conduit. Both ends terminate with plain connections, ready for field brazing by a licensed HVAC technician.

This line set is suited for residential and light commercial applications where refrigerant lines must be run between the indoor air handler and the outdoor condensing unit. It is appropriate for ductless mini-split systems, variable refrigerant flow (VRF) commercial systems, and conventional split system air conditioners and heat pumps. The 50-foot length covers most standard residential exterior wall and rooftop runs without requiring a field-fabricated line set. The copper tubing meets ASTM B743 and B88 material specifications, and the insulation assembly is rated to ASTM E84 and C1427 standards with UL listing.

Key Features

• 3/8-inch liquid line and 7/8-inch suction line in a single pre-paired assembly
• 50-foot length for residential and light commercial refrigerant runs
• 3/4-inch black polyethylene hard-shell insulation rated UV resistant
• R-410A approved insulation for use with current-generation refrigerants
• Anti-tear exterior jacket for easier installation through tight or abrasive pathways
• Insulation marked every foot for accurate field measurement
• Plain end x plain end connections for field brazing

Compatibility

Suitable for ductless mini-split systems, VRF commercial systems, and split system air conditioners and heat pumps requiring a 3/8-inch liquid line and 7/8-inch suction line configuration.

Installation Notes

Installation must be performed by a licensed HVAC technician holding EPA Section 608 certification for refrigerant handling. De-energize the outdoor unit and recover any residual refrigerant pressure before cutting or connecting the line set. Both plain ends require field brazing using nitrogen purge to prevent internal oxidation scale; do not braze without flowing dry nitrogen through the tubing. Follow local mechanical codes and manufacturer equipment instructions for support spacing, line routing, and insulation continuity at penetrations.

Technical Specifications

• Liquid Line Diameter: 3/8 inches
• Suction Line Diameter: 7/8 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
• Material Specification: ASTM B743/B88
• Applicable Standard: ASTM E84/C1427, UL
• Application: Ductless Mini-Split System, VRF Commercial System, Split System Air Conditioner and Heat Pump

Standard Information

• Brand: CAMBRIDGE-LEE INDUSTRIES
• Manufacturer Part Number: 061412500B