Hi All,
Yesterday, I had trouble with underheating; today overheating! Thanks for your patience and help.
I've got a Packaged Multizone system with a heating and cooling coil, baseboard heaters and heat recovery that's serving 7 zones. It's got typical occupancy, internal gains, ventilation, etc., for classrooms.
For the life of me, I can't figure out why those zones are in the high 80s F during occupancy. It's definitely a controls issue because the heating equipment is at 90-100% part load for all occupied hours. Cooling is disabled during this period, as appropriate for my climate.
Meanwhile, an adjacent zone served by a separate Packaged Single Zone system is functioning as expected.
Your thoughts would be greatly appreciated.
Thanks,Liam O'Brien