Dear eQuest Modelers,

I am wondering what system I should use for the hotel building.
According to ASHRAE 90.1, as hotel belongs to residential building, I have to choose PTAC as my baseline HVAC system.
I have selected DX coil as the cooling source and hot water coil as the heating source.
There are 4 system type for me to choose, including Packaged VAV with HW reheat, Packaged Multizone with HW heat and Packaged DX Series or Parallel Fan-Powered VAV with HW reheat.
Is it suitable to select packaged multizone as the baseline system for the hotel building?
Because after I compared the energy consumption for the baseline and design building which employs 4-pipe FCU as the HVAC system, there seems to be a great energy saving....
I don't know if the system chosen for the baseline building is wrong or not.
Besides, is it really the case that hotel can meet the basic requirement of 14% energy reduction easily? Is FCU much more effective than PTAC?

Thanks for all the answers from professionals.

Best regards,
Jonathan Mak
LEED AP