In the HVACTemplate:System:VAV object, the Heating Coil Design Setpoint should be around 10°C (or at least lower than the Cooling Design Setpoint, otherwise it produces errors). Looking at the InputOutput Reference, it says Heating Coil Design Setpoint is the heating supply air temperature in C to be used for sizing heating coil and zone supply air flow rates. The temperature 10C does not make any sense to me. How should I interpret this field?