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Greenheck 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, Models DGX-P-MF and MSX-P-MF reduce horsepower requirements, resulting in lower operating costs. The direct drive, mixed flow impellers contribute to lower sound levels; sound power 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. Heating options include direct gas-fired, electric heat, hot water and steam coils; cooling options include packaged direct expansion, split direct expansion, chilled water and evaporative cooling. Models DGX-P-MF and MSX-P-MF are ideal for a variety of commercial and industrial facilities where low sound and energy efficiency are required.
