This Statement of Work (SOW) establishes performance requirements for a qualified mechanical contractor to provide preventive maintenance (PM), cleaning, inspection, and regulatory-compliance services for forty-one (41) direct expansion (DX) HVAC and refrigeration units at the Louis A. Johnson (LAJ) VA Medical Center, Clarksburg, West Virginia (VISN 5 / NCO 5). The equipment inventory spans 14 locations and ranges in capacity from 1.5-ton ductless mini-splits to a 273-ton York YVAA air-cooled chiller. Services shall be performed in strict accordance with each unit's manufacturer Instructions for Use (IFU), the applicable codes and standards cited in Section 1.2, VHA Directives, VA Technical Information Library (TIL) publications, and The Joint Commission (TJC) Environment of Care requirements. This SOW is performance-based: the Contractor is responsible for achieving the outcomes defined herein and shall exercise professional judgment within the boundaries established by the IFU and applicable standards.