Environmental protection
Greenstar FS/Combi FS – 6 720 810 590 (2020/04)
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14 Environmental protection
14.1 Environmental protection and disposal
Environmental protection is one of the fundamental company policies of
the Bosch Group.
Quality of products, efficiency and environmental protection are equally
important objectives for us. Environmental protection laws and
regulations are strictly adhered to.
To protect the environment, we use the best possible technology and
materials taking into account economic points of view.
Packaging method
For the packaging, we participate in the country-specific recycling
systems, which guarantee optimal recycling.
All packaging materials used are environmentally-friendly and
recyclable.
Old appliances
Old appliances contain valuable materials that can be recycled.
The components are easy to separate. Plastics are identified. This allows
the various assemblies to be sorted and recycled or disposed of.
15 Inspection and maintenance
Regular service and maintenance are recommended for a long service
life of the appliance, for efficient and economical operation, and to keep
the environmental impact as low as possible.
DANGER:
Explosion!
▶ Close the gas cock prior to working on the gas train.
▶ Check for gas leaks after carrying out work on the gas train.
DANGER:
Risk of flue gas poisoning.
▶ Check for leaks after carrying out work on the venting system.
DANGER:
Risk of electric shock!
▶ Always disconnect the appliance from the mains power before
performing any work. Always disconnect the appliance from the
mains power before performing any work. Take measures to prevent
accidental reconnection.
NOTICE:
Insufficient antifreeze can accelerate corrosion.
▶ Frost protection level has to be checked annually during the regular
scheduled maintenance of the condensing boiler.
15.1 Description of various steps
15.1.1 Calling up the latest fault (service function 6.A)
▶ Select service function 6.A ( Page ).
An overview of the faults can be found on page 74.
15.1.2 Fresh water filter in the cold water pipe
▶ Close cold water tap.
▶ Depressurize the cold water pipe.
▶ To access the filter remove the safety clip (step 1), pull out the pipe
(step 2), and remove the filter from the pipe (step 3).
▶ If necessary, clean with plastic brush under running water.
Fig. 81 Strainer in the cold water pipe
15.1.3 Plate type heat exchanger (only combi boiler KWB..-3A)
If the DHW output on the combi boiler is significantly reduced:
▶ Check filter in the cold water pipe for contamination.
▶ Depressurize the appliance.
▶ Remove the plate type heat exchanger and replace with a new unit.
-or-
▶ Descale with descaling agent approved for stainless steel
(Grade 316-1.4401).
To remove the plate type heat exchanger:
▶ Unplug electrical connections.
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