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The Goodman ls14381265dmsf is a pre-flared mini split lineset designed to connect the indoor air handler to the outdoor condensing unit in ductless mini split systems. Constructed from insulated copper with 1/2 inch wall insulation, this lineset features a 1/4 inch liquid line OD and a 3/8 inch suction line OD over a total coil length of 65 feet. The DMS flared end connections are factory-formed, eliminating the need for field flaring on both lines. HVAC technicians and mini split installers working on residential and light commercial jobs will find this lineset ready to connect directly to compatible DMS flared service valve ports.
This lineset is suited for ductless mini split installations where a longer lineset run is required, such as units mounted on upper floors, in tight utility chases, or across wider building footprints. The 65 foot length provides flexibility for a range of installation layouts without field splicing. The black insulation jacket resists UV exposure and moisture intrusion, making it appropriate for exposed exterior routing as well as concealed interior runs. It ships as a coiled assembly for manageable transport to the job site.
Designed as an OEM-style accessory lineset for ductless mini split systems requiring DMS flared connections with a 1/4 inch liquid line and 3/8 inch suction line.
Installation should be performed by a licensed HVAC technician following the system manufacturer's guidelines and applicable mechanical codes. Recover and isolate all refrigerant before disconnecting any existing lineset. When routing, avoid sharp bends that could kink the copper tubing, and support the lineset at regular intervals per local code requirements. Do not braze or solder the factory-formed flare fittings; use only proper flare wrenches to achieve a leak-free connection.
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