Your cooling and heating schedules will still have to be temperature schedules for a two-pipe system. To make your 2-pipe system switch from heating to cooling you want to go under your 2-pipe loop and specify a ?snap? temperature. This is found under the operations tab, ?loop operation?.

You can also create an ?on/off/temp? schedule under the availability schedules of your unit?s cooling and heating coils if there are additional periods when cooling or heating are not allowed for specific air handling units.

I hope this answers your question.