The AA Series AbsolutAire make up air unit comes in either horizontal or vertical configuration and provides heating capacities from 200 to 6000 MBH and airflow capacities between 800 and 50,000 CFM. It operates as either a 100% fresh air unit or a return air unit. Each of three available models is designed to operate with at least 20% outside air while re-circulating some return air. Energy costs are reduced by heat recovery of the building’s warmer, re-circulated air. The three return air models available are:
- M Option – These make up air units are capable of modulating 20% and 100% outside air and 80% to 0% return air.
- B Option – These make up air units are two position OA/RA units that can be either in 100% OA mode or in a 20% OA / 80% RA mode.
- F Option – These make up air units are designed for full time air rotation. A two position damper is used on the outside air inlet only. The RA opening is fixed and is not equipped with a damper.