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An example of this is the Active Mixing circuit.
The Active Mixing circuit consists of a pump, 3-way mixing valve, two balance valves and a temperature sensor. Each can be individually selected based on its parameter values and the part criteria supplied.
The Thermostatic regulating unit, for instance, is a composite BC that has the exact same hydraulic configuration as the Active Mixing circuit. Internally it also has a pump, 3-way mixing valve, two balance valves and a temperature sensor, however the only component that can be selected is the Thermostatic regulating unit part itself.
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