iHeat Operation Guide: 12063-A 01-13
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Water quality
Water quality outside the limits, as set down below, will void this warranty. Water quality tests must be carried out
at the customer’s own cost. Rinnai will reimburse any reasonable test costs where water quality is within the limits
tabled.
Water quality and impurity limits
TDS (Total
Dissolved
Solids)
Total
Hardness
CaCO
3
Alkalinity
(as CaCO
3
)
Dissolved
(free) CO
2
pH
Chlorides
Magnesium
Sodium
Iron
Langelier
Index
Up to 600
mg/L or ppm
Up to 200
mg/L or
ppm
Up to 200
mg/L or
ppm
Up to 25
mg/L or
ppm
6.5-8.5
Up to 300
mg/L or
ppm
Up to 10 mg/L
or ppm
Up to 150
mg/L or
ppm
Up to 1 mg/L
or ppm
Between
-1.0-0.8
Most metropolitan water supplies fall within these limits. If you are unsure about water quality, please contact
Rinnai and we will provide you with details of an authorised agency able to test your water for compliance to
Rinnai standards. If sludge or foreign matter is present in the water supply, a suitable filter should be incorporated
in the water supply. Some examples of water quality issues where water may need to be treated:
-
Hard water (areas including Wanganui)
-
Aggressive water (areas including Christchurch)
-
Both hard and aggressive water (some bore water)
Other continuous flow water heaters connected to the Rinnai iHeat
The Rinnai iHeat system has been designed and tested for optimum performance with a Rinnai Infinity continuous
flow water heater. Other continuous flow water heaters may also be suitable. Please check the suitability with the
manufacturer of the water heater before installation as this may affect your water heater warranty.
If a continuous flow water heater, other than a Rinnai Infinity, is installed with the Rinnai iHeat this will be deemed
as a component supplied by others and will not be covered by this warranty. This includes iHeat system faults
caused by a faulty continuous flow water heater other than a Rinnai Infinity.
Installation by trained installers only
The warranty only applies to systems installed by listed installers, installers who have completed the Rinnai iHeat
online specifying and installation courses. For listed installers please refer to the Rinnai website:
www.rinnai.co.nz/iheatinstallers.html.