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Looking at your model, you have two AirLoopHVAC:UnitarySystem objects, and each houses four components: a Fan:OnOff, a Coil:Cooling:WaterToAirHeatPump:EquationFit, a Coil:Heating:WaterToAirHeatPump:EquationFit and a Coil:Heating:Electric (the reheat).
• Use one unitary system to wrap your Coil:Cooling:WaterToAirHeatPump:EquationFit and one unitary forCoil:Heating:WaterToAirHeatPump:EquationFit, put as "Septoint" mode an place a setpoint manager on the outlet node.