Jmf Company 061208300k Copper Lineset 3/8x3/4 30 Ft Retrofit

Product Description

The JMF COMPANY 061208300k is a pre-insulated copper lineset designed for residential and light commercial HVAC refrigerant piping installations. This retrofit-series lineset consists of a 3/8-inch liquid line and a 3/4-inch suction line, both pre-insulated and bundled together for efficient field routing. The suction line carries 1/2-inch thick insulation to limit heat gain and condensation. At 30 feet in total length, it suits a wide range of split-system replacement and new-installation jobs where a single run connects the indoor air handler or evaporator coil to the outdoor condensing unit.

This lineset is suited for retrofit and replacement applications in residential split-system air conditioning and heat pump installations. The Retrofit series designation makes it a practical choice when upgrading or replacing an existing system where standard lineset sizing is required. HVAC technicians typically use this lineset when running refrigerant piping through walls, ceilings, or exterior chases between matched indoor and outdoor equipment.

Key Features

• Copper construction for reliable refrigerant containment and long service life
• 3/8-inch liquid line and 3/4-inch suction line bundled in a single pre-insulated assembly
• 1/2-inch insulation thickness on the suction line reduces heat gain and condensation
• 30-foot length covers common residential split-system run distances
• Retrofit series designation suits direct replacement of aging or failed linesets

Compatibility

Designed as an OEM-style retrofit replacement lineset for residential split-system air conditioners and heat pumps requiring a 3/8-inch liquid line and 3/4-inch suction line configuration.

Installation Notes

Installation should be performed by a licensed HVAC technician holding an EPA 608 certification, as refrigerant system work requires proper handling of regulated substances. Disconnect and lock out power to both the indoor and outdoor units before connecting or disconnecting any refrigerant lines. Protect the copper tubing from kinking during routing, and support the lineset at appropriate intervals per local mechanical code requirements. Evacuate the system to the required vacuum level before introducing refrigerant.