Ohio's Largest ABB HVAC Drive Stock. Serving Northern and Central Ohio.
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Northern and Central Ohio's HVAC Sales

Welcome to Direct Air Systems, Inc.

Direct Air Systems, Inc. is a full service HVAC Equipment Sales firm serving Northern and Central Ohio representing multiple specialty HVAC equipment manufacturers. Our sales and service engineering team captures a broad range of expertise to support the products we sell. Our work can be found across the state of Ohio in schools, office buildings, labs and hospitals. Our products can be found in major hospitals, zoological facilities, pharmaceutical process applications, a host of universities and public schools.


Whether its new construction or retrofit of existing equipment, we have years of system know-how necessary to successfully apply the product to achieve the desired function. We routinely get the call for the demanding jobs.

Click the photo library to see some of our energy conservation products on the job. We make the energy difference with our ABB variable speed drives. We enhance Indoor Air Quality with our Paragon Controls air flow sensors by accurately measuring the volume of outside air, return and supply air in the most demanding environments. Our construction partners will agree that we consistently provide and commission the highest quality HVAC products.


Welcome to Direct Air Systems, Inc. Welcome to Direct Air Systems, Inc. Welcome to Direct Air Systems, Inc. Welcome to Direct Air Systems, Inc. Welcome to Direct Air Systems, Inc.

ABB HVAC Variable Frequency Drives


• 1-550 HP Variable Torque

• Local Factory Start-Up, Service & Support

• NEMA Frame Motors

• 208/460v VFD's In Stock

Veris Energy & Environmental Sensors

• Air Quality, CO2, Pressure, Humidity & Power Monitoring

Ohio HVAC SalesOhio HVAC SalesOhio HVAC SalesOhio HVAC SalesOhio HVAC SalesOhio HVAC SalesDirect Air Systems - HVAC EquipmentDirect Air Systems - HVAC EquipmentDirect Air Systems - HVAC Equipment

Paragon Air Flow Control

• Space Pressure Monitors

• Air Flow Measuring Stations

• Outside Air Measurement

TCI Electric Power Conditioning Filters

• Line Reactors

• Harmonic Line Filters for IEE 519 Compliance

• PWM Output dV/dT Filters

• Motor Bearing Current Filters

Baldor Premium Efficiency Motors


• ODP & TEFC

• Internal Aegis Shaft Grounding Rings

• Various HVAC Applications

Our Locations

Location Information

Hudson, Ohio

5650 Akron-Cleveland Road
Hudson, OH 44236
Phone: (330) 467-4646
Fax: (330) 467-4765

Location Information

Columbus, Ohio

533 Morse Road
Columbus, OH 43214
Phone: (614) 732-5263
Fax: (614) 732-5264