How to model AHU and FCU?

[David]

Again this one is from a while ago so I'll just answer quickly if you'll forgive me.

To be honest if you want to simulate both the AHUs and FCU in each room, the best option is to use ApacheHVAC. If you simply have to use ApacheSystems you can set up separate system for each room and assign individually (no real point to set up based on each room as it doesn’t simulate the plant at all). You can set up AHU and FCU based on a group of room which have the same specifications of AHU and FCU. Remember the supply option at room level will only be active for Mech Vent systems.

I hope that's helped a little and not confused even more.