Dear all,

My school has some 200 zones including classrooms, storage rooms,
offices...

The HVAC system is a VAV one, with FCU for 17 offices/storage rooms.

In the new updated design, 4 of these FCUs were replaced with a VRV
system. I am about to model that:

Do you think that these 4 small zones (electrical room (x 2), UPS room,
telephone room) will significantly change the Space Cooling results (not
that no heating is required)? I mean, these zones had FCUs and were
conditioned. All that changed is that a VRV (COP=10) replaced the
chiller (COP=5.4) for only 4 zones!

I would like to avoid the complexity of modeling VRVs if possible!

Many thanks,

Omar Katanani