Model Ranges

Seresco offers many different models and sizes of OA Series DOAS units. The units are able to handle extremely humid design conditions are suitable for airflows as low as 125 CFM outdoor air per ton of compressor capacity. Consequently the airflow ranges are very broad for the compressor ranges.
Units are available from 8-28 HP with a CFM range of 800 - 4800 CFM.

    OA-008.  800 – 2400 CFM

    OA-010.  1000 – 2600 CFM

    OA-013.  1000 – 2600 CFM

    OA–216. 2000 - 4800 CFM

    OA–220. 2000 - 4800 CFM

    OA–226. 2000 - 4800 CFM

    OA–228. 2000 - 4800 CFM

The base NE series unit is loaded with features. Units are available in a multitude of horizontal, vertical and outdoor configurations. Seresco’s microprocessors are all supplied with Ethernet connections. This allows all units to be accessed over the internet. This technology offers the owner very inexpensive 24-7 monitoring abilities. There is also a smart phone version available that allows access to your unit from anywhere you have a cell signal. The facility owner, especially those in remote locations will have a much more affordable means of ensuring their units are monitored and serviced by experienced factory trained service companies.
Airflow for the OA Series is fully flexible and field adjustable. The airflow can be “dialled in” from the CommandCenter® keypad. Varying the unit airflow with demand is also an option.  Reducing or increasing airflow as outdoor conditions change can be done. Supply CFM can also be controlled from an external input, or simply to maintain room positive pressure.

Dew points are typically dictated by the designer engineer but field adjustment is now possible with the OA Series! As a result of the flexibility to adjust supply CFM on site, the supply dew point can be set from 47-55 °F for sizes up to 13 HP, and as low as 40 F for the larger units. The operator now has the ability to fine tune the supply dew point on site.

The CommandCenter microprocessor will control the hot gas reheat coil output to modulate and deliver a reheated supply air temperature that remains in the 70-75°F range regardless of the conditions of the outdoor air.

All the coils are row split, with an enhanced tube and fin design which helps provide the maximum moisture removal efficiency (MRE) while using the least possible energy during both peak and off peak times. All coils are fully dipped in corrosion protection to ensure a long lifespan.
This DC motor offers continuously variable control when connected to an external potentiometer or 0-10VDC signal. The blower is a motorized Electronic Cummuted (EC) impeller plenum fan design complete with backward inclined airfoil blades providing high static pressure and the highest blower efficiencies with quieter operation. The EC-Motor combines maintenance free with the efficiency control advantages of a direct current motor at low speeds. 
There is always one side of a Seresco unit that does not require service access. The gives the unit a compact footprint in the mechanical room and allows the designer lots of flexibility when laying out the mechanical room.