Direct-drive fans require no belt maintenance. Hinged doors with zinc cast lockable handles provide easy service access to the fans, coils, filters, condensers, compressors, and controls. Labeled electrical components and color-coded wiring match the unit-specific color-coded wiring diagram which is permanently affixed inside the control compartment. Direct-drive ECM driven backward curved plenum fans provide precise airflow control and reduced sound levels. Double-wall rigid polyurethane foam injected panel construction provides increased sound dampening.

Source: ACHR News (a part of news report)

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