Sorry for my English

Any one can suggest, which is correct baseline HVAC system for following project description.

No. of Floors: 7 - including terrace floor (B+G+4+Terrace)

Conditioned Floors: 5 floors (G+4)

Conditioned Area: 45,000 sq.ft,
Gross floor Area: 85,000 sq.ft

No zones is conditioned in Basement & Terrace floors.

Based on this details, I will go to System 6 (PVAV with PFP boxes)

Is this correct.

Any guidance would be appreciated.

Praveenbabu R