Wolf FWS-2-80, Installation Instructions Manual, Page: 29 / 104

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Safety instructions
Please read the following installation and commissioning instructions carefully before
operating your appliance. This will avoid damage to your system which could arise
through incorrect handling.
Incorrect use and any unauthorised modifications made to the design or during
installation will result in any liability claims becoming void.
In addition to any applicable country-specific guidelines, the following engineering
standards must be observed.
DIN 1988
Drinking water supply systems
DIN 4708
Central water-based heating systems
EN 12828
Central heating systems in buildings – Designing hot water heating systems
DIN 4753
Water heaters and water heating installations for potable water and for service water
EN 12977
Thermal solar systems and components – Custom built systems
EN 12976
Thermal solar systems and components – Factory made systems
DIN 18380
Installation of central heating systems and hot water supply systems
DIN 18381
Installation of gas, water and drainage pipework inside buildings
DIN 18382
Cables and power lines in buildings
EN 12975
Thermal solar systems and components – Solar collectors
VDE 0100
Low voltage electrical installations
VDE 0185
Protection against lightning
Safety instructions
- Because of the control equipment, the entire system (DHW and heating water) must
be kept free of dirt (install dirt traps where necessary).
- Positioning and installation may only be carried out by an authorised contractor.
- The system must be installed in a location that is protected from frost.
- As with all DHW circulation systems, it is important to provide an appropriate excess
pressure facility or an expansion vessel.
- Observe all national codes for drinking water hygiene.
Notes: