Installation Instructions; Equipment Description; Instructions And Regulations; Use Of The Unit - STIEBEL ELTRON BHC 175 Gebrauchsanweisung

2. Installation instructions

The installation (water and electrical work)
and commissioning as well as maintenance of
this appliance must be carried out only by an
approved qualified installer in accordance with
these instructions.
Only remove the packaging of the unit and
accessories at the place of installation, taking
note of the additional package.
When unpacking, take care to ensure that no
accessories remain behind in the packaging
material.

2.1 Equipment description

11 Protective dust filter
12 Wall distance pipe
13 Screw 5 x 40
14 Adjusting screw M4 x 10
15 Spacer
16 Clamp
17 Screw M5 x 30
18 Cap
19 Raw plug Ø 8 mm
20 Mount-hook
21 Cap
22 Power supply cable with plug, 1000 mm long
23 Heating flow pipe connection G ½
24 Heating return pipe connection G ½
25 Air bleed cock
26 Fixing bolt
27 Rating plate
28 Extension 180 mm
29 Extension 130 mm
30 Extension 50 mm
31 90° -elbow union
The towel rail radiator is for wall mounting only.
In preparation for installation, the unit is filled
with a heat carrier medium (water/glycol mix-
ture) which is heated via an immersion heater.
The electrical connection takes place via a
mains plug.
If necessary, after draining the heat carrier
medium the unit can also be connected to the
hot water central heating system via the feed
(23) and return connectors (24).
With splash protection class IP 24, the heater
can also be used in protected zones 2 to
VDE 0100 T701 (follow the notes on protected
zones in 2.2).

2.2 Instructions and regulations

The appliance must not:
– Be operated in areas which are subject
to the risk of fire or explosion due to
chemicals, dust, gases or vapours;
– Be operated in the immediate vicinity of
pipes or containers which carry or con-
tain combustible or potentially explosive
substances;
– Be operated, at less as the minimum
clearance distances advised.
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for qualified installers
In workshops or other areas in which the
odour of waste gases, oil, petrol, etc. might
occur, or in which work is carried out involv-
ing solvents and chemicals, there is a risk of
sustained odour burdens being engendered,
and possibly of dirt contamination occurring.
• The appliance should only be installed on a
vertical wall resistant to temperatures above
90 °C
To avoid danger to very small children,
!
the unit must be installed so that the
lowest crossbar is at least 600 mm above
the floor!
• The installation wall must have sufficient
load-bearing capacity (appliance weight, see
"Specifications").
• Observe the minimum distances from ad-
joining surfaces of objects.
• The appliance should not be installed im-
mediately below a wall socket.
• All electrical connection and installation
work must be carried out in accordance
with the VDE regulations (0100), the regula-
tions of the competent water and electricity
supply companies as well as the appropriate
national and regional regulations.
• Follow the rating plate. The stated voltage
must be in accordance with the mains voltage.
• If the heating unit is installed in rooms with
a bath and/or a shower, the range of pro-
tection according to the I.E.E. Regulations- in
conformity with the information on the unit
rating plate - must be taken into account.
BHC 175
• The unit is to be fitted in such a way that
switching and control devices cannot be
touched by anyone in the bath or under the
shower.
• If it needs replacing, the power supply cable
must only be replaced with an original
Stiebel Eltron spare by a qualified installer.
• The appliance must in any case be filled with
water. Operating the appliance electrically
without filling it will destroy the appliance.
• The connection of the bath/towel heating
elements to the central heating system may
not allow the free expansion of the water
content of the bath/towel heating element
to the expansion vessel if the thermostatic
valve is closed. If the valve is installed in the
return flow, then it must be ensured that this
can only be operated by means of a tool so
that the unauthorised closure of the valve is
prevented. When using the electrical direct
heating element (summer operation) this
valve may under no circumstances be closed.

2.3 Use of the Unit

If the bathroom heater is operated electrically
only, it must be installed without connecting
the feed and return connectors for the central
heating system, depending on the unit type
concerned.
If the bathroom heater is to be connected
to the central heating system, before instal-
lation the factory-filled heat carrier medium
(required for purely electrical operation) must
be drained.
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