In a Mall project, it has multiple kitchens/restaurants which have ecology units that exhaust air (fume hoods). One Makeup Air Handling Unit (MAHU) is provided in each of these spaces to 'makeup' for the exhausted air. The MAHU supplies treated outdoor air to these spaces.
There are dedicated FAHUs that are also supplying outdoor air to these spaces to comply with 62.1.
The question is this: Should the outdoor air being supplied by the MAHUs also be shown in the Minimum Indoor Air Quality (IAQ) Calculator as single zone systems? Or should only the outdoor air supplied by FAHUs be considered since MAHUs are only 'making up' for exhausted air?