Installation and operating instructions
Fresh water station WHI freshaqua 44; Fresh water station WHI freshaqua 55
3 Product description
83514402
▪
1/2017-08
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Ext. PAW
8-36
3.1
Function
The fresh water stations WHI freshaqua are used for the comfortable and hygienic
heating of domestic water according to the continuous flow heater principle. Other than
in conventional domestic water storage tanks, foodstuff water is not used for energy
storage and stored as hot water for hours or days. It is only heated when required using
a high-performance plate heat exchanger. The energy for heating the domestic water
comes from a buffer tank that can be heated by different systems - using solar systems
as well as solid fuel boilers, oil / gas boilers, heat pumps or other systems.
The WHI freshaqua modules are well suited for use in combination with a thermal solar
system. The very good cooling of the heating water in the highly effective plate heat
exchangers leads to an increased efficiency of the solar circuit as the average tempera-
ture of the solar circuit can be reduced due to the cold return.
In event of great tapping differences, the WHI freshaqua fresh water stations always
have to guarantee a constant outlet temperature at the hot water tap.
The speed of the highly efficient EC pumps of the latest generation is controlled by
a high-performance closed-loop control always allowing the heating flow rate to be
optimally set to the current tap capacity.
The closed-loop control receives the necessary information for adjusting the system
from a flow rate sensor and extremely fast temperature sensors that detect the smallest
temperature deviations immediately.
The WHI freshaqua units can be optionally equipped with a circulation kit
with highly efficient EC circulation pump for internal retrofitting. The closed-loop
control can operate the pump in different circulation modes; always adapted to
the current system and requirements of the customer.
During commissioning, the circulation return temperature can be set individually on the
circulation system so that the recordable and traceable DVGW (551) requirements for
a maximum cooling of the circulation by 5 K can be fulfilled.
Thus, the WHI freshaqua therefore offer perfect comfort, optimum hygiene and a
future-orientated energy saving operation.
3.2
Serial number
The serial number on the type plate clearly identifies each product. The serial number is
necessary for the Weishaupt after-sales service. In case of a complaint, please send us
the serial number of the product concerned and the completed commissioning report
(see page 34). The serial number is placed in the lower right corner of the support sheet
of the station.
Serial number:
