Setpoint Manager OpenStudio

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SetpointManager:ScheduledDualSetpoint is designed to work with PlantLoop objects, not AirLoop.

As stated in the [documentation]:

Currently the DualSetpoint Manager will be used with PlantLoop when the Plant Loop Demand Calculation Scheme is set to DualSetpointDeadband.

As far as what SetpointManager you should use, you need to get the actual proposed sequence of operation from the MEP and really understand it.

• If you know that your building will be equipped with a Building Management System (BMS) and that this system will be polling information from the zones themselves to get for example the position of the VAV boxes and reset the temperature accordingly so that the worst zone VAV box is fully open, then I would use a SetpointManager:Warmest object (doc). Set the minimum Setpoint temperature to 13°C and the maximum setpoint temperature to 18°C.

• If you won't have such a system, then it's likely that you should use SetpointManager:OutdoorAirRest (doc). Set it to dry bulb and then pick low and high outdoor air temperature and it'll interpolate linearly between the two. For example, it might be define that if outside air dry bulb temperature $OAT_{DB}$ is 10°C (low cooling load), then $SAT$ is 18°C, and if $OAT_{DB}$ is 18°C then $SAT$ is 13°C. It would result in the following behavior.