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The PARKER gbw.un385812050b is a pre-insulated suction line lineset designed for unitary HVAC systems. It pairs a bare copper coil for the liquid line with a factory-insulated suction line, reducing field labor and ensuring consistent insulation coverage from the start. The suction line tubing spans from 3/8 inch to 5/8 inch with 1/2 inch insulation wall thickness across a 50-foot length. The outer polyethylene jacket protects the foam insulation from tearing during pull-through and routing. Licensed HVAC technicians install this lineset on split-system air conditioners and heat pumps as part of the refrigerant circuit between the indoor and outdoor units.
This lineset is suited for residential and light commercial unitary split systems where a pre-insulated suction line simplifies installation. It is rated for use with high-pressure refrigerants including R-410A. Incremental foot markings printed along the insulation allow the technician to measure the run accurately on site, supporting correct initial refrigerant charge calculations and reducing excess copper waste. The insulation surface is paintable, making it appropriate for exposed exterior installations where aesthetics or UV protection are a concern. The outer jacket is available in black or white finishes.
Designed as an OEM-style replacement and new-installation lineset for residential and light commercial unitary split-system air conditioners and heat pumps using high-pressure refrigerants such as R-410A.
Installation must be performed by a licensed HVAC technician in accordance with applicable mechanical codes and the equipment manufacturer instructions. De-energize and recover all refrigerant from the system before disconnecting or connecting any refrigerant lines. Seal the open ends of the copper tubing completely when connecting to the indoor or outdoor unit to prevent moisture or debris from entering the insulation. When installed in exposed exterior locations, apply a high-quality exterior paint over the insulation and consider covering with plastic duct or conduit for added UV and physical protection.
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