I'm modeling a 12-floor hotel building located in Dubai that uses System 8: VAV with parallel fan-powered boxes. The proposed system has 8 AHUs and 2 chillers. Since a hotel is considered a residential building under ASHRAE Appendix G, I have to model the baseline with System 2: PTHP (the building only uses electricity). The energy consumption of the baseline is resulting way lower than the energy of the proposed building (therefore 0 energy savings) since the baseline uses less energy for fans, no energy for pumps, and no energy for heat rejection. Is there any exception on how to model the baseline in this case?