Hi,

I am modeling a fire house. I encountered a problem at the fire truck
bay. There is a DX cooling / furnace heating system at the fire truck
bay for basic air-conditioning. I am wondering if anyone know how to
model a separate emergency exhaust/makeup system for the fire truck bay,
which will not affect the sizing of the DX cooling / furnace heating
system. The emergency exhaust/makeup system is controlled by the CO
sensor and has a duct furnace at the makeup air.

Thanks!

Loi Ng