Mitsubishi Electric Gas Valve Assemblies

Overview

The Mitsubishi Electric e22155666 is a gas-side union fitting designed for use in split-system air conditioning installations. This component provides the refrigerant gas-line connection point between the indoor and outdoor units of a compatible mini-split system. The fitting is sized for 12.7mm line sets, which corresponds to the gas-side tubing used on smaller-capacity split systems. HVAC technicians install this part during new system commissioning or when a refrigerant line connection needs to be replaced or re-terminated at the indoor unit. This union fitting is associated with the MSZ-AP22VGD indoor wall-mounted unit, indicating use in residential mini-split applications. It is typically installed as part of a complete line-set connection during system setup or service. Proper brazing or flare technique is required to maintain a leak-free refrigerant circuit. This type of fitting is handled by licensed HVAC technicians working on split-system refrigerant circuits. Key Features Gas-side union fitting sized for 12.7mm refrigerant tubing Designed for use with the MSZ-AP22VGD indoor unit OEM Mitsubishi Electric replacement part for accurate fit and refrigerant integrity Maintains the refrigerant gas-line connection between indoor and outdoor units Compatibility Associated with the Mitsubishi Electric MSZ-AP22VGD (E12) indoor wall-mounted split-system air conditioning unit based on supplier data. Installation Notes Installation should be performed by a licensed HVAC…