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6.3.4 Option: Booster pump
Fig. 31: Booster pump
A booster pump must be used for installations with a raw water
pressure of < 4.0 bar:
Selection by identity code.
n
A minimum pressure of 4.0 bar is generated.
n
The single-phase feed pump is fed with supply voltage, con‐
n
trolled and monitored by the control.
The pressure reducer in the raw water line can then be
n
omitted, as the pressure at the inlet of the internal water pipe‐
work of the mixing system is controlled by software based on
the integrated pressure measurement.
A3497
Construction and function
45
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