Installation & Servicing instructions ATAG A-Series
11
6.3 Water quality
Fill the installation with drinking water.
In most cases, a heating system can be lled with water according to national standards
for water and is treatment of this water not necessary.
In order to avoid problems with the CH-installations, the quality of the lling water has to
meet the specications mentioned in table 6.3.a:
If the lling water does not meet the required specications, you are advised to treat the
water to such an extent that it does meet the required specications.
The warranty becomes invalid, if the installation has not been ushed and/or
the quality of the lling water does not meet the specications recommended
by ATAG Heating UK Ltd. Always contact ATAG Heating UK Ltd in advance, if
things are not clear or you wish to discuss any deviations. Without approval, the
warranty becomes invalid.
Installation:
- The use of groundwater, demi-water and distilled water is prohibited. (on the next
page you will nd an explanation of these denitions)
- If the drinking water quality meets the specications mentioned in table 6.3.a, you
can start ushing the installation before installing the device.
- Whilst ushing, corrosion products (magnetite), tting products, cutting oil and other
undesirable products have to be removed.
- Another possibility is to remove the pollution by installing a lter. The lter type has
to t the type and grain size of the pollution. ATAG Heating UK Ltd recommends lter
usage.
- In this case, the whole piping system should be taken into consideration.
- The CH-installation has to be properly vented before using the system. For that
purpose, we refer to the commissioning chapter.
- If a regular water top up is required (>5% on an annual basis), then there is a structural
problem and an installer has to solve the problem. Regularly adding fresh water to the
system also adds additional calcium and oxygen implying that magnetite and calcium
residues can continue. The result may be blockages and/or leakages.
- The use of anti-freeze and other additives requires periodical quality checks of the
lling water in accordance with the period laid down by the additives supplier.
- Chemical additions are to be avoided and should only be used after ATAG Heating
UK Ltd has approved their corresponding use.
- Should you wish to achieve the required water quality by using chemical additives,
then this is your own responsibility. The warranty on the product delivered by
ATAG Heating UK Ltd expires, if the water quality does not meet ATAG Heating's
specications or the chemical additives have not been approved by ATAG Heating
UK Ltd.
- On installation and during additions or changes at a later stage, ATAG Heating UK
Ltd recommends to keep a record of the type of water used, its quality at the time,
and if applicable, which additives and quantities were added.
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