Dear All,

I am working on LEED CI certification for office building (area 5382sf) . I
have a problem to select the baseline HVAC system to calculate the saving
for EAC1.3 In the LEED CI. The rating system provide the modeler the ability
to choose the simulation method (ECB Section 11 or Performance rating).

But in case I used the performance rating method , what is the baseline
system?

It will be System 4- PSZ-HP (depending on that the area is below 25,000sf)

OR

System 8 -VAV/with PFP box depending on that the office is in tower ,and the
whole tower area is more than 15,000sf (in this case ,a separate meter will
use to calculate the office energy usage)

Any advice

Regards,

Mohammad Al-Masri