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Environment Considerations; Water Quality - Bosch Optiflow GWH16 3 CT E23 F6 L S2405 Installation Manual

Gas continuous flow water heaters
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With indication,
but without existence of
solar thermal system.
With indication
and water temperature
Table 11
Note: breakdowns diagnosed by the water heater through an indication in the LCD panel result in the blocking of the appliance for
safety reasons. Once the problem is solved, you can reset the appliance by pressing the on/off button or by unplugging and
replugging the power supply cord.
To locate your nearest service agent, call: AU 1300 30 70 37, NZ 0800 54 33 52.

Environment considerations

Environmental protection is a fundamental corporate strategy
of the Bosch Group.
The quality of our products, their efficiency and environmental
safety are all of equal importance to us and all environmental
protection legislation and regulations are strictly observed.
We use the best possible technology and materials for
protecting the environment taking into account of economic
We participate in the recycling programmes of the countries in
which our products are sold to ensure optimum recycling.
All of our packaging materials are environmentally friendly and
can be recycled.
Used appliances
Used appliances contain valuable materials that should be
The various assemblies can be easily dismantled and synthetic
materials are marked accordingly. Assemblies can therefore be
sorted by composition and passed on for recycling or disposal.

Water quality

All Bosch water heating appliances are constructed from high
quality materials and components and all are certified for
compliance with relevant parts of Australian and New Zealand
gas, electrical and water standards.
Whilst Bosch water heaters are warranted against defects, the
warranty is conditional upon correct installation and use, in
accordance with detailed instructions provided with the
heater. In the case of the water supplied to the heater, it is
important that the water quality be of an acceptable standard.
The temperature selected is lower than the minimum
power that the appliance supplies.
High incoming water temperature or low flow rate
can create this occurrence.
Appliance is making resonance noise (vibration).
Environment considerations | 21
Possible solution
▶ Increase the hot water flow.
▶ Select a higher temperature.
If the problem persists:
▶ Call an authorised service technician.
▶ Call an authorised service technician.
The water quality limits/parameters listed in water quality table
are considered acceptable and generally, Australian and New
Zealand suburban water supplies fall within these limits/
In areas of Australia and New Zealand where water may be
supplied, either fully or partly, from bores, artesian wells or
similar, one or more of the important limits may well be
exceeded and the heater could, therefore, be at risk of failure.
Where uncertainty exists concerning water quality, intending
appliance users should seek a water analysis from the water
supplying authority and in cases where it is established that the
water supply does not meet the quality requirements of the
water quality table, the Bosch warranty would not apply.
Water quality table
Maximum levels
+0.4 to -1.0
at 65 °C
Table 12
6 720 817 545 (2016/02)



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