Installation & Servicing instructions ATAG XL
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- Chemical additions are to be avoided and should only be used after ATAG HEATING
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
expires,ifthewaterqualitydoesnotmeetATAG´sspecicationsorthechemicalad-
ditives have not been approved by ATAG.
- On installation and during additions or changes at a later stage, ATAG 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.
Parameter Value
Water type Potable water
Softened water
pH 6.0-8.5
Conductivity (at 20°C in µS/cm) Max. 2500
Iron (ppm) Max. 0.2
Hardness (°dH):
Installation volume/capacity
<20 l/kW
1-12
Installation volume/capacity
>=20 l/kW
1-7
Oxygen No oxygen diusion allowed during
operation.
Max.5%llingwateradditionannually
Corrosion inhibitors Refer to Additives Attachment
pH increasing or lowering agents Refer to Additives Attachment
Anti-freeze additives Refer to Additives Attachment
Other chemical additives Refer to Additives Attachment
Solid substances Not allowed
Residues of processing water not for-
ming part of the drinking water
Not allowed
table 6.3.a
Water type denition:
Potable water: Tap water compliant with the European drinking water guideline:
98/83/EG dated 3 November 1998.
Softened water: Water with partly de-ionised calcium and magnesium.
Demi-water: Virtually completely demineralised water (very low conductivity)
Distilled water: Water no longer containing minerals.
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