I have an EnergyPlus model in which I am trying to set my radiant heating coil to be available only seasonally - I want to have my slab only heat during the winter and only cool during the summer. However, Whenever I set my cooling coil availability to be 0 during the winter, my heating shuts off too and the coil only operates at all during the cooling coil availability.

These coils are on separate loops and have separate pumps. So, I have tried setting my pump associated with my cooling loop to only be on during the summer, but once again, it shuts down my radiant heating flow too - even though it is assigned to a separate schedule.

Each radiant loop has supply equipment of a constant speed pump, a water to water heat pump coil, and a bypass pipe. The demand side equipment is simply a radiant coil and a bypass pipe. I have one loop for heating and one loop for cooling. I simply want to be able to operate them independently but they seemed tied together for some reason. Has anyone else encountered this or found a work-around?