Cambridge-lee Industries 061408400B Line Set 40 Ft

Product Description

The CAMBRIDGE-LEE INDUSTRIES 061408400B is a pre-pulled, pre-insulated copper refrigerant line set designed for split-system and ductless installations. It includes a 3/8-inch liquid line and a 7/8-inch suction line, both run together at 40 feet in length. The suction line is wrapped in 1/2-inch black polyethylene hard-shell insulation rated for UV resistance and approved for R-410A refrigerant systems. Both ends are plain cut for field flaring or brazing. This line set is manufactured from copper meeting ASTM B743/B88 material specifications and is listed to ASTM E84/C1427 and UL standards. HVAC technicians use this line set to connect indoor and outdoor units during new installations or equipment replacements.

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 40-foot run length covers typical installations where the outdoor unit is mounted at grade or on a rooftop pad at moderate distance from the indoor air handler or wall cassette. The insulation is marked every foot to simplify measurement and routing during rough-in.

Key Features

• 3/8-inch liquid line and 7/8-inch suction line in a single pre-bundled assembly
• 40-foot length with foot-marker insulation for easy field measurement
• 1/2-inch black polyethylene hard-shell insulation rated UV resistant
• R-410A approved insulation meets ASTM E84/C1427 and UL listings
• Copper tubing meets ASTM B743/B88 material specification
• Rugged anti-tear exterior shell simplifies pull-through and routing
• Plain end x plain end connections for field flaring or brazing

Compatibility

Designed for use with 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 with R-410A refrigerant.

Installation Notes

Installation should be performed by a licensed HVAC technician holding an EPA Section 608 certification. Shut down and recover any residual refrigerant before disconnecting existing line sets, and isolate power to both indoor and outdoor units prior to beginning work. Plain ends require field flaring or silver-brazing per manufacturer and local mechanical code requirements — do not deform tube ends during routing. Support the line set at intervals per local code to prevent sagging and stress on end connections.

Technical Specifications

• Liquid Line Diameter: 3/8 inches
• Suction Line Diameter: 7/8 inches
• Length: 40 feet
• Insulation Thickness: 1/2 inches
• Insulation Material: Black Polyethylene Hard Shell
• UV Resistant: Yes
• Refrigerant Approval: R-410A
• End Connection: Plain End x Plain End
• Tubing Material: Copper
• Material Specification: ASTM B743/B88
• Applicable Standards: 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: 061408400B