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Hi, I am not sure what modelling software you are using but the actuator node is the node on your cooling coil that you want to vary to meet the criteria you have set. So for instance, if you want an air humidity of 8g/kg and an air temperature of 15°C coming off your coil, your sensor node for those criteria is the air node coming out of the cooling coil and the actuator node is the water node going into the coil, the water entering the coil needs to vary in flow and temperature for the air to meet the criteria.

This is the case for a water coil, however, if you have a DX coil you do not need a Controller:WaterCoil. The system will know itself to look into the correct places. You will need setpoints and to put the right type of control in your DX system.

Hi, I am not sure what modelling software you are using but the actuator node is the node on your cooling coil that you want to vary to meet the criteria you have set. So for instance, if you want an air humidity of 8g/kg and an air temperature of 15°C coming off your coil, your sensor node for those criteria is the air node coming out of the cooling coil and the actuator node is the water node going into the coil, the water entering the coil needs to vary in flow and temperature for the air to meet the criteria.

This is the case for a water coil, however, if you have a DX coil you do not need a Controller:WaterCoil. The system will know itself to look into the correct places. You will need setpoints and to put the right type of control in your DX system.