Cambridge 384680 Insulated Lineset 3/8x3/4 30 Ft Hvac

Product Description

The CAMBRIDGE 384680 is a pre-insulated refrigerant lineset designed for residential and light commercial air conditioning and heat pump installations. The set consists of a 3/8-inch suction line and a 3/4-inch liquid line, both insulated and paired in a standard 30-foot run. The 3/4-inch insulation jacket on the suction line helps limit heat gain and condensation along the refrigerant circuit. Licensed HVAC technicians install this lineset to connect the indoor evaporator coil to the outdoor condensing unit, completing the refrigerant loop between the two system components.

This lineset suits standard split-system air conditioner and heat pump installations in residential and light commercial settings. The 30-foot length accommodates typical equipment placement where the indoor and outdoor units are within a standard distance of each other. It is intended for use in new installations and refrigerant system replacements where a pre-paired, pre-insulated lineset simplifies field labor and reduces the need to source suction and liquid lines separately.

Key Features

• 3/8-inch suction line paired with a 3/4-inch liquid line in a single pre-insulated assembly
• 30-foot standard length suits most residential split-system installations
• 3/4-inch insulation jacket limits heat gain and condensation on the suction line
• Pre-paired configuration reduces field assembly time
• Standard lineset format compatible with common split-system installation workflows

Compatibility

Designed as an OEM-style replacement or new-install lineset for residential and light commercial split-system air conditioners and heat pumps requiring a 3/8-inch by 3/4-inch line pair.

Installation Notes

Installation should be performed by a licensed HVAC technician with EPA Section 608 certification, as the work involves a sealed refrigerant circuit. De-energize and recover any refrigerant from the existing system before disconnecting or replacing linesets. Avoid sharp bends in the copper tubing during routing, as kinks restrict refrigerant flow and reduce system efficiency. Follow local mechanical codes and the equipment manufacturer guidelines for brazing, leak testing, and evacuation procedures.

Technical Specifications

• Suction Line Diameter: 3/8 inches
• Liquid Line Diameter: 3/4 inches
• Insulation Thickness: 3/4 inches
• Length: 30 feet
• Configuration: Standard pre-insulated lineset

Standard Information

• Brand: CAMBRIDGE
• Manufacturer Part Number: 384680