iNSTallaTiON
installation
www.stiebel-eltron.com
HSBB 200 S (GB) |
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Detach the plug of the electronic assembly for operation and
the earth connection from the front fascia.
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Remove the cover.
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Unhook the front casing towards the top.
Fitting the front casing
Fit the front casing in reverse order.
11.3 Heating water connection and safety valve
11.3.1 Safety instructions
!
Material losses
The heating system to which the appliance is connected
must be installed by a qualified contractor in accord-
ance with the water installation drawings in the technical
guides.
!
Material losses
When fitting additional shut-off valves, install a further
safety valve in an accessible location on the heat gen-
erator itself or in the flow line in close proximity to the
heat generator.
There must be no shut-off valve between the heat gen-
erator and the safety valve.
Oxygen diffusion
!
Material losses
Avoid open heating systems and plastic pipes in under-
floor heating systems which are permeable to oxygen.
In underfloor heating systems with plastic pipes that are per-
meable to oxygen and in open vented heating systems, oxygen
diffusion may lead to corrosion on the steel components of the
heating system (e.g. on the indirect coil of the DHW cylinder, on
buffer cylinders, steel heating elements or steel pipes).
!
Material losses
The products of corrosion (e.g. rusty sludge) can settle in
the heating system components and can result in a lower
output or fault shutdowns due to reduced cross-sections.
Supply lines
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The maximum permissible line length between the appli-
ance and the heat pump will vary, depending on the version
of the heating system (pressure drop). As a standard value,
assume a maximum line length of 10 m and a pipe diameter
of 22 mm.
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Protect the flow and return lines against frost with sufficient
thermal insulation.
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Also protect all supply lines/cables against humidity, damage
and UV radiation by means of a conduit.
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Connect the hydraulic connections with flat gaskets.
Pressure hoses against structure-borne sound transmission:
The appliance and the heat pump are connected to each other
hydraulically via pipes carrying heating water. To reduce the trans-
mission of structure-borne noise on the water side, use pressure
hoses to connect the appliance to the heat pump.
Pressure differential:
If the available external pressure difference is exceeded, the pres-
sure drop in the heating system could result in a reduced heating
output.
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When sizing the pipes, ensure that the available external
pressure differential is not exceeded (see chapter "Specifica-
tion / Data table").
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When calculating the pressure drop, take account of the flow
and return lines and the pressure drop of the heat pump.
The pressure drop must be covered by the available pressure
differential.
