We are working on a CS muti-unit residential project. There will be infrastructure for residents to use splits in their units. According to the item 5.9 of ASHRAE 62.1-2007 the project has to comply with filters minimum efficiency of Merv 6. As we know that the high wall system do not comply with this mandatory, the residents would have to use cassettes in their units, which would be very hard considering the lack of roof space.
Considering the units are not in the core or shell of the building, and that it is a residential project, does the lease agreement has to be done for future residents to comply with filters minimum efficiency?