If the building is occupied 24/7, controls should include a dehumidistat and ventilation on/off. If occupied on a routine schedule, suggest the DEH3000 controller for %RH and scheduled fresh air ventilation. If random occupancy, suggest DEH3000R/ CO2 which would activate fresh air when you are in the home turn fresh off when you leave.
No other fresh air ventilation will be required. Sealing attic from the home is best.
I got confused with another larger home post. Looks like you have an 1,600 home. The initial unit you picked will provide the 50-60 cfm of fresh air and maintain 50%RH.