Viessmann VITOCROSSAL 200 Service Instructions Manual page 90

Gas condensing boiler with matrix cylinder burner

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Water quality requirements

(cont.)

Where chemicals are used as part of the

corrosion protection, we recommend

that the manufacturer of the chemicals

issues a certificate of suitability of the

additives with regard to the boiler mate-

rials and the materials of the other heat-

ing system components. We recom-

mend you refer questions regarding

water treatment to an appropriate spe-

cialist.

For further details, see guideline

VDI 2035-2 and EN 14868.

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