The air handler unit is the heart of the modular fan system. It is designed to deliver fresh outside make up air for installation requiring frequent air changes. Units are designed for indoor or outdoor applications and are available in down or horizontal configurations. This modular unit is offered as a shell for easier field installation of replacement modules. Performance tables should be reviewed when configuring units. This modular unit should be sized correctly to maximize performance.

Packages are available in sizes up to 22,000 CFM and external pressures up to 2" WG. Units have large doors on both sides to provide ample access to all internal components. Shells consist of a galvanized enclosure with a blower. The blower has a standard horizontal inlet designed to accommodate an outside air inlet hood with standard 2" filters and screen.