Air Control & Ventilation

DGX-P-MF  ... energy efficient.

DGX-P-MF ... energy efficient.

Greenheck introduces fans for make-up air

July 2018

US-based Greenheck’s make-up air models DGX and MSX can now be configured with a direct-drive, mixed-flow plenum supply fan for low- to medium-pressure applications. With performance capacities from 800 to 16,000 cfm, the models DGX-P-MF and MSX-P-MF reduce horsepower requirements, resulting in lower operating costs, says a spokesman for Greenheck, a leader in manufacturing and distributing air movement, conditioning and control equipment. 

Model DGX is a highly configurable direct gas-fired heating and cooling system that incorporates a modular design for maximum flexibility. In addition to constant volume 100 per cent outdoor air operation, recirculation and variable air volume options are also available. The DGX can be configured with a forward-curved or backward-curved supply fan allowing for both belt driven or direct drive arrangements.

Commenting on the performance of the enhanced models, the spokesman says: “The direct-drive, mixed-flow impellers contribute to lower sound levels – reduction of up to 8 decibels can be achieved.

“The factory-mounted, preprogrammed variable frequency drive provides an inherent soft-start for the supply fan, while the absence of belts and sheaves also reduces maintenance and simplifies air balancing in the field.”

Multidirectional discharge contributes to installation flexibility.

Cooling options include packaged direct expansion, split direct expansion, chilled water and evaporative cooling; while heating options include direct gas-fired, electric heat, hot water and steam coils.

Models DGX-P-MF and MSX-P-MF are suitable for a variety of commercial and industrial facilities where low sound and energy efficiency are required.

Greenheck offers both tempered and non-tempered make-up air systems for kitchen exhaust systems.  

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