(C) IDM ENERGIESYSTEME GMBH
Installation instructions Hygienik 2.0
7
Description
1...UVR 61-3 HEP speed controller (accessory)
2...High-ef
fi
ciency pump
3...Plate heat exchanger
4...Flow switch
5...Heat meter (accessory)
6...Circulation module for 25l and 35l hot water
stations (accessory)
2.3. Notes on dimensioning
The Hygienik 2.0 is available in various combinations
for different tank and heat exchanger sizes. The fol-
lowing criteria must be considered in order to select
the appropriate type.
Several tanks can be combined, depending on spe-
ci
fi
c requirements.
1
2
3
4
5
“Tapping output” of the plate heat exchanger
The tapping output is the current maximum hot water
tapping quantity that can be heated by the plate heat
exchanger from a cold water temperature of 10°C to
50°C at a tank temperature of 55°C.
The selection of the appropriate plate heat exchanger
type will depend on the number of residential units
and the equipment on the drinking water side. Refer
to DIN 4708, Part 2, for information on dimensioning.
Hot water stations are available with the following
tapping outputs:
-
25 l / min.
-
35 l / min.
-
50 l / min.
-
70 l / min.
“Single tapping volume”
This is the total quantity of hot water at 45 °C that
can be tapped from a Hygienik 2.0 when the tank is
heated to 60°C right to the bottom and is not reheated
by the heat generator.
“NL” performance index
The “NL“ performance index top-bottom as de
fi
ned
by DIN 4708 indicates how many standard residential
units (as per DIN 4708, Part 2) can be supplied by the
Hygienik 2.0 under standard conditions.
“Hot water requirement”
The hot water requirement for a building must be
de
fi
ned in accordance with DIN 4708, Part 2 or using
the “Sander method.” A suitable Hygienik 2.0 type is
then selected from the table below.
Hygienik
Application
500 l
For a single-family home, possibly with solar
plant for hot water heating
825 l
For two-family homes
1000 l
For a solar plant with partly solar room heating
or for single-family homes with wood boiler
system
1500 l
For apartment buildings
2000 l
For solar and wood boiler systems with higher
tank volume
6