D I E
E N E R G I E F A M I L I E
(C) IDM ENERGIESYSTEME GMBH
4. Installation
Installation Instruction Hygienik
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4. Installation
4.1. Setup conditions AQA 300/AQA 500
Set up the boilers as close as possible to the drinking
water tap point, in order to keep the water routes as
short as possible and prevent a circulation line.
When storing, transporting and assembling the
components, it must be ensured that no mechanical
effects such as deformations, scratches and tensions
occur.
4.2. Setup location AQA 300/AQA 500
The boilers must be set up in a frost-free room by an
approved specialist company.
The relevant laws, regulations and standards both for
heating house piping and for sanitation installations
must be observed.
A free space should be adhered around the IDM-
Hygienik 300l for easy access to the connections.
4.3. Connecting sleeves Hygienik
Dimensions for the connecting sleeves are mentioned
on page 9.
4.4. Drink water -side connection
The hydraulic integration is realized according to the
indicated schemes (for this see chapter „Applications
overview“).
The connection dimensions are listed in chapter “Di-
mensional drawings” on page 9.
The hot water tank is convenient for drink water (ph-
value > 7,3) according to DIN 50930-6. The connec-
tion pipe work can be made with galvanised pipes,
stainless steel pipes, copper pipes or plastic pipes.
The connections must be realised pressure-tight.
The component-tested safety devices as per DIN
1988 and DIN 4753 must be installed in the cold
water line (see fi gures below).
The operating pressure of 10 bar indicated on the type
plate must not be exceeded. If necessary a pressure
reducer must be installed.
1...Pressure reducer (only at more than 6 bar)
2...Emtying valve
3...Backfl ow preventer
4...Pressure gauge connecting piece 1/2“
5...Shut-off valve
6...Diaphragm safety valve
A dirt collector is installed in the cold water line.
In the case of hard water a water softening device
should be installed.
4.5. Hot water circulation
If longer pipe is required for hot water, a circulation
pump is necessary to keep up the water temperature
so that hot water is instantly available.
According to DVGW sheet, no. 551, a hot water circu-
lation pipe to protect against legionella is prescribed if
the pipe‘s capacity is larger than 3 litres.
According to DVGW sheet no. 551, the temperatures
of the hot water in the circulation pipe should be peri-
odically increased up to 60°C.
The IDM Navigator controller is equipped with a spe-
cial circulation pump control.
The Navigator controller, the control of a circulation
pump is possible, when the digital output on the Navi-
gator main board is not used for common fault signal.
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