Atag iR 12

Installation & Servicing instructions ATAG iR-Range
15
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 / ppm):
Installation volume/capacity
<20 l/kW
1-12 °dH / 17-214 ppm
Installation volume/capacity
>=20l/kW
1-7 °dH / 17-125 ppm
Oxygen No oxygen diffusion allowed during operation.
Max.5%llingwateradditionannually
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 forming part of the
drinking water
Not allowed
table 9.2.a
Water type denition:
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.
9.3 Heating systems with plastic pipes
Whenconnectingorusinganunderoorheatingsystem,designedwithplasticpipes,orplasticpipesare
used elsewhere in the installation, one should ensure that the plastic pipes used comply with the DIN
4726/4729 standard. It is set out in this standard that the pipes may not have oxygen permeability higher
than0.1g/m³.dat40°C.IfthesystemdoesnotcomplywiththisDINstandard,theunderoorheating
component will have to be separated from the central heating appliance by means of a plate exchanger.
No recourse can be made to the terms of the warranty in the event of failure to observe the
regulations pertaining to plastic underoor heating pipes.