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| BGC
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INSTALLATION
SAfETY
INSTALLATION
7. Safety
Only qualified contractors should carry out installation, commis-
sioning, maintenance and repair of the appliance.
7.1 General safety instructions
We guarantee trouble-free operation and operational reliability
only if the original accessories and spare parts intended for the
appliance are used.
7.2 Instructions, standards and regulations
Note
Observe all applicable national and regional regulations
and instructions.
7.3 Water connection and safety assembly
Note
Carry out all water connection and installation work in
accordance with regulations.
The cylinder must be connected with water inlet and outlet pipes
made from metal. Other metal parts of the cylinder that can be
touched and that are in contact with water must be permanently
and reliably connected with the earth conductor.
The max. permissible pressure must not be exceeded (see chapter
“Specification / Data table” and cylinder specification).
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Install a type-tested safety valve in the cold water supply
line. For this bear in mind that, depending on the static pres-
sure, you may also need a pressure reducing valve.
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Size the drain so that water can drain off unimpeded when
the safety valve is fully opened.
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Fit the discharge pipe of the safety valve with a constant
downward slope and in a room free from the risk of frost.
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The safety valve discharge aperture must remain open to the
atmosphere.
8. Equipment description
8.1 Standard delivery
Delivered with the appliance are:
- Extension, G 1½, 45 mm (BGC/45 | BGC 2/60)
- Wiring diagram label
8.2 Required accessories
Depending on the static pressure, safety assemblies and pressure
reducing valves are available. These type-tested safety assemblies
protect the appliance against unacceptable excess pressure.
9. Mounting
Note
Installation from below is not permissible for safety rea-
sons.
26
�0
2�
09
�0
00
1
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Observe the permissible installation position in the cylinder
(see figure).
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Always install the threaded immersion heater with heating
elements and a protective pipe arranged in parallel. Realign
the components where necessary.
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During installation, ensure that the temperature selector is at
the top.
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Screw on the appliance up to at least half of the thread. The
threaded immersion heater is sealed in by means of a seal
ring.