DFM
DFM
Indoor Series Make-Up Air Heaters
Applied Air direct fired modular units provide the flexibility to 'mix and match' various modules. Thus, the ability to create new types of units for almost any indoor application is available.
Fourteen standard model sizes provide a range of 1,600 to 64,000 CFM and 82 to 9,016 MBH. Single blower units provide 1,600 to 30,000 CFM and double blower units 9,000 to 64,000 CFM. Larger jobs can usually be handled with multiple units without sacrificing either economy or performance.
The equipment is available for indoor suspension or floor mounting and can be vertical or horizontal.
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Patented DDC Controls Available
Most Precise Control
The DFM is capable of more precise temperature control and real time on-board diagnostics thanks to the patented Adaptaire DDC control system (Patent #7,059,536). Interfacing with local networks is made easier since the Adaptaire system supports BACnet, LON, N2, and Modbus. In cases where it is beneficial to use return air for even greater energy savings the DFM is fitted with an airflow station that the Adaptaire controls use to monitor the ratio of outside air to return air in order to ensure safe discharge air conditions. The velocity probe array plus the Adaptaire controller are capable of maintaining the return air/outside air ratio within 5% accuracy at all damper positions.
Advanced Operator Interface
Touchscreen Convenience
In addition to the precision and sophistication of the Adaptaire DDC control software, Applied Air has implemented a touch screen operator interface for quick access to operating conditions, diagnostics, setpoints, and schedules.
Direct Fired Burner Design
Burners Built to Last
Direct fired burners in DFM units, and all Applied Air direct fired units, feature cast iron gas burner pipes with stainless steel burner plates. This material combination is field proven to last for decades with only an occasional cleaning of the orifices. An optional aluminum gas burner pipe is also available.
Factory Assembled Gas Train
Tested and Ready to Fire
All Applied Air DFM products and completed assembled and factory tested against leaks and operational faults. Each unit test results are documented and stored by unit serial number. Start up and service questions can then be compared to the conditions recorded at the factory prior to shipment.
Unique Air Distribution Option
Revolving Discharge for Broad Area Coverage
One of the more unique options for the DFM is the "Revolving Discharge". Unlike conventional fixed diffusers or grills this gear driven supply air discharge attachment rotates at 1 rpm spreading the tempered and filtered air over a broad floor area. This is particularly effective in very tall spaces and allows a single unit to cover as much area as multiple smaller units with fixed discharge arrangements.
FACTORY MOUNTED AND WIRED VFD OPTIONAL
Match Fan Speed to Demand
The already lower operating costs of the DFM unit can be further enhanced with the optional VFD for the supply fans. Building thermal loads can vary widely, especially in very large warehouses and factories that might be operating 24/7. Adding the VFD option to the DFM, and integrating it with the Adaptaire DDC system, can result in significant operating cost savings by matching fan speeds to the demands of the building.
V-BANK FILTERS OPTIONAL
Clean Filtered Air
The Applied Air DFM has the option of a V-bank filter bank for clean tempered air entering the space. The filter bank has racks that will accommodate 2" filters with up to MERV13 ratings.
