CASCADE REFRIGERANT LINE SET

原文（中国語）

A refrigeration line set is provided including a gas line with first and second openings formed through a sidewall thereof. A liquid line includes exterior sections and an interior section extending through the gas line. A connection unit is positioned at each opening in the gas line, and each connection unit includes a line fitting attached to an end of the interior section of the liquid line, and a cap attached to an end of an exterior section of the liquid line and fixed to the sidewall of the gas line around the opening.