(C) IDM ENERGIESYSTEME GMBH
5. Installing the hot water station 2.0
Installation instructions Hygienik 2.0
30
Installing the hot water station 2.0
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5.7. Connecting to the hot water station on
the drinking water side
The hot water station is suitable for normal drinking
water (pH value > 7.3) as de
fi
ned by the Drinking
Water Ordinance and DIN 50930-6. The connecting
pipework can be established with copper pipes or
plastic pipes.
The connections must be of pressure-resistant de-
sign.
Type-tested safety installations pursuant to DIN 1988
and DIN 4753 must be installed in the cold water line
(see illustrations below).
The operating pressure of 3 bar as stated on the type
plate must not be exceeded. If necessary, a pressure
reducer is to be installed.
1...Pressure reducer (only for pressures exceeding
6 bar)
2...Drain valve
3...Back
fl
ow preventer
4...Manometer connector ½“
5...Isolating valve
6...Membrane-Si valve
A ball valve with dirt trap is installed In the cold wa-
ter line before the
fl
ow switch. This valve must be
checked after
fi
lling and
fl
ushing the lines.
In areas where the water is hard, a water softening
device should be installed.
The plate heat exchanger is cleaned and decalci
fi
ca-
tion of the plate heat exchanger is performed using a
small pump by
fl
ushing with a descaling agent from
top to bottom via the installed
fl
ushing valves.
Connecting the hot water station
electrically
Electrical connection must be performed as shown in
the enclosed electric circuit diagram.
1
2
3
4
5
6
2
Hot water circulation is possible via the
optional iDM circulation module for the
25 l and 35 l hot water stations. If pro-
tection against scalding is required, the
hot water station must be equipped with a
mixing valve to limit the inlet temperature
at the heat exchanger. This applies in par-
ticular when using solar plants.
Technical data
Type
25l
35l
Tapping output*
25 l/min.
35 l/min.
Pressure loss on drink-
ing water side
0.3 bar
0.3 bar
Max. operat. pressure
heating side
4 bar
4 bar
Max. operat. pressure
drinking water side
6 bar
6 bar
Max. operating tem-
perature
85°C
85°C
Transmission perf. of
the circulation modules
1)
7.7 kW
10.7 kW
Electrical connection
230V/50Hz 230V/50Hz
Electrical
power consumption
50 watts
50 watts
Dimensions HxWxD
in mm
1000 / 440 / 260
1)
Hot water
fl
ow temperature 60°C
Maximum cool down in the circulation 5 K
Type
50l
70l
Tapping output*
50 l/min.
70 l/min.
Pressure loss
on drinking water side
0.3 bar
0.3 bar
Max. operat. pressure
heating side
4 bar
4 bar
Max. operat. pressure
drinking water side
6 bar
6 bar
Max.
operating temperature
85°C
85°C
Electrical connection
230V/50Hz 230V/50Hz
Electrical
power consumption
50 watts
50 watts
Dimensions HxWxD
in mm
1000 / 440 / 260
*at tank temperature 60°C and
hot water tapping temperature 55°C
Cold water temperature 10°C
