Knowing the model of fan coil unit, how to determine the size of air outlet?

The air outlets produced by different manufacturers are different. After you know the model of the fan coil unit, you can check the fan coil unit product sample of the manufacturer you need according to the model, which contains detailed parameters.

You can also go to Shenyang Lake HVAC Technology Network, where samples of fan coil units from some manufacturers have also been collected.