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Individual components and parameters
Secondary pump
3-way mixing valve
Balance valve for pump
Balance valve on the 3-way valve bypass
Balance valve to limit maximum temperature (premix)
System check
As this mixing circuit is a so called 'active' mixing circuit, the embedded pump is able to extract hot water from the primary side by itself. In fact this circuit must be connected to a pressure less header/collector. If the software encounters a pump on the primary side of the active mixing circuit, it will report this as a problem while running the system check.
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