(C) IDM Energiesysteme GmbH
6. General description
Installation instructions AERO ILM
46
The inspection and the preparation of the
heating water, belongs to the responsi-
bility of the competent heating engineer.
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operation can cause damage!.
6.
6.
6 Exterior installation
General description
General description
6. Heating connections
6.1. Requirements heating connections
The pertinent laws, regulations and standards for
boiler house pipework and also for heat pump sys-
tems must be observed.
- Before the heatpump in the heating return a mag-
netic dirt trap must be installed.
- The safety and expansion devices for closed
heating systems pursuant to EN 12828 must be
provided.
- In case an electrical heating element will be installed
in the thermal storage tank, an additional safety de-
vice must be installed at the thermal storage tank!
- The line dimensioning must comply with the re-
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- The connection hoses for heat pump inlet, return
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connection hoses can be shortened to the desired
length, however, not shorter than 60 cm. Further-
more the connection hoses must not be bent!
- At the highest points of the connection lines venting
options must be provided, and at the lowest points
outlet options.
- In order to avoid energy losses the connection lines
must be insulated with suitable material.
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ing with plastic pipes or open heating systems, corro-
sion may occur in the steel parts if steel pipes, steel
radiators or storage heating systems are used.
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and lead to a capacity loss of the heat pump or high-
pressure disturbances.
Therefore avoid open heating systems or steel pipe
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Heating water quality
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European standard EN 12 828, ÖNORM H 5195 and
in particular VDI Guideline no. 2035-1 must be ob-
served and represent the latest technological stan-
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must be taken into account. This is because 1 °dH
means 17 mg of lime per litre that can be separated.
For a heating system with 1,500 l of water content
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lime at 20 °dH (in other words, half a kilogram). As the
lime deposits itself at the hottest and narrowest parts
in the system, this means that gas thermals, heat ex-
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The plate exchanger for the hot water heating (espe-
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hot gas heat exchanger in the HGL heat pump can
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some circumstances.
For this reason,the heating water must be treated ac-
cording to the standards (softened/demineralised).
The pH value of the heating water should also be
checked;this should be between
8.2 and 9.5.
Hydraulic drain
For easier emptying a drain valve is installed before
the loading pump in the hydraulic piping.
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pump operation can cause damage!
6.2. Safety device
When working with higher temperatures by a bivalent
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have to be installed on sit