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Protecting The Environment - Bosch Model GWH 425 User Manual

Indoor model flow modulated with standing pilot suitable for heating potable water only -
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Protecting the environment

The packing box may be fully recycled as confirmed by
the recycling symbol
Many parts in the heater can be fully recycled in the end
of the product life. Contact your city authorities for
information about the disposal of recyclable products.
Saving water resources:
B Make sure you close all the taps after any use. Avoid
leaving the taps dripping. Repair any leaking tap.
B Set the water heat to the temperature you want. This
way you have the precise water flow needed (mixing
cold water to regulate temperature will increase the
water flow with consequent waste of water).
For increased safety shut off the appliance from
the main water supply if your are staying away
from home for a considerable time.
At below freezing temperatures, disconnect the
plumbing connections to the heater and allow
the heater to drain.
To prevent any freeze damage, introduce short
bursts of compressed air (20-40 psi) through
these connections to remove the residual water
in the horizontal pipes and water valve.
Follow instructions in chapter 4.5 to remove any
additional water remaining in the watervalve and
heat exchanger.
6 720 608 034
Protecting the environment



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This manual is also suitable for:

Protankless gwh-425-pn-nProtankless gwh-425-pn-l