Water Quality - Noritz WHiC56 Service Manual

Water Quality

If the heater is in a hard water area a suitable water conditioning device must be installed to
prevent the build up of limescale within the heat exchanger. Heat exchangers damaged by
scaling are not covered by the manufacturer's warranty.
WATER QUALITY TABLE
Maximum levels
Total
Total
Description pH Dissolved solids Chlorides Magnesium Calcium Sodium Iron
Hardness
(TDS)
Maximum 500 150 250 10 20 180 1
6.5 - 9.0
Recommended Levels mg/liter mg/liter mg/liter mg/liter mg/liter mg/liter mg/liter
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