I'm running an energy model on an existing building built in the 1960's. The building is heating and cooling change over system that is manually changed over to heating or cooling mode based on space temperatures. However the control sequence says to change over to heating when OA temp is below 67 and Cooling with OA temperature is over 67.
I feel like it should be an availability schedule but i can not figure out how to implement it.
Would it be on each individual coil availability? (There are 9 AHU's with both heating and cooling coils and obviously the system only does heating or cooling at a given time)
Or would it be on the boiler/ chiller availability?
Thanks,
