I'm working in a project of an existing building refurbishment that will pursue LEED certification CI. However, since part of the HVAC equipments will be maintained (namely AHU's for ventilation), I'm not sure if some of the requirements of ASHRAE 62.1-2010 are still applicable, namely:
1) Filters minimum efficiency;
2) Minimum distances between outdoor air intakes and potential outdoor contaminant sources;
3) Outdoor airflow monitoring devices.

Can you please help?

Regards,