Am I right to assume in the baseline building:
1 - The use of HVAC system 2 for all hotel spaces since it is considered a "Residential" building (according to table G3.1.1A of ASHRAE90.1-2007) ? Can we apply this system type to all zones (bedrooms, corridors, reception)?
To other zones (car parks, exercise center, restaurants), I am considering “nonresidential” building types.
2 - To decide which HVAC system to consider for all “nonresidential” area, I apply the criteria from table G3.1.1A to all “nonresidential” 2600 m2 with 5 floors and select system 6, correct?
3 - However, there are also spaces that fall under G 3.1.1 exception b (space peak thermal load that differ 31,2W/m2 or more than the average of the system). Does the calculation of the average thermal load regards only the nonresidential spaces? Or should I include in this calculations all the building’s area?
4 - Regarding the DHW system, there are 2 boilers of 125 kW each (nominal nameplate power), serving 2 storage tanks of 3.000 liters each. The baseline DHW system that I'm choosing for the baseline is a Gas storage water heater, with more than 22,98 kW and, therefore, has 80% (Et), right?
Thank you in advance!
