D-Series Air-Cooled Self-Contained Units, Horizontal

The Sigma D-Series Self-Contained Vertical Indoor Air-Conditioning packages offer a complete line of unit options for hi-rise and single-story commercial building applications. A full array of options and accessories are available to meet site requirements.

The compact, low profile indoor design protects against potential vandalism and weathering and eliminates the need for any unsightly exterior equipment. The indoor installation makes servicing simple and cost effective. Units are designed to fit through 36-inch doorways, hallways and elevators. Units can be ordered as packaged or split in two sections to facilitate installation. Units are either installed as a packaged system or split system depending on site requirements.

Units are designed for floor-by-floor installation providing independent zone and temperature control, eliminating the complications encountered with outdoor and rooftop equipment. Renovation and restoration projects are simplified where roof load, cooling tower, and construction restrictions present installation challenges and costs.

Sigma guarantees quality engineering and high efficient dependable operation. Units are tested and conform to current AHRI standards and are listed with the Department of Energy (DOE).