- Supply CFM
- Return CFM
- Minimum Outside Air (OA) CFM
- Exhaust CFM
- External Static Pressures
- Supply
- Return
- Design Temperatures and
Conditions - both summer and winter
- Outside Air (OA) db/wb
- Return Air (RA) db/wb (space condition)
- Supply Air (SA) db/wb
This is a start. These are base questions that begin the process. There
are 100's of options on Custom AHU's. If more information is provided in
early stages of design, the process moves quicker and unit design is
significantly enhanced.