Standard Installation - STIEBEL ELTRON DHB-E 18 Si Gebrauchs- Und Montageanweisung

3. Standard installation

Electrical: unfinished walls – from below; water: unfinished walls
3.1 General installation infor-
mation
The equipment is prepared at the fac-
tory for standard installation (see figs.
C - I ):
• Installation above a worktop C (a).
• Water connection, unfinished walls, com-
pression fitting G (4 and 5).
• Electrical connection, unfinished walls, in
the lower equipment area F (6).
3.2 Place of installation
Install the DHE vertically in accordance with
C (a – above or b – below worktop) in a
room free from the risk of frost.
3.3 Equipment preparation
for installation
• Open the appliance D :
a Open the flap downwards.
b Release the fixing screws.
c Remove the equipment cap.
• Remove the back wall base E :
a Press down both snap-in tabs.
b Remove the back wall base by pulling
forwards.
• Remove the fixing toggle F (13) .
3.4 Securing the mounting
bracket
F
• Mark out the fixing holes for the moun-
ting bracket using the installation template
supplied.
• Secure the mounting bracket with 2
screws and rawl plugs (not supplied;
selection subject to the material of the
relevant wall).
3.5 Trimming the power
cable to size
Trim the power cable to size in accordance
with H .
Note:
Cap (a) should be used as an aid for installing
the power cable.
3.6 Equipment installation
• Route the power cable through the cable
grommet (6) and press the back wall over
the threaded studs of the mounting bra-
cket.
• Fit the equipment, secure the fixing toggle
(13).
3.7 Water connection
Important information:
Thoroughly flush the cold-water sup-
ply pipe.
Always incorporate the strainer supplied
(20, bag on the cold-water fitting) into
the cold-water compression fitting. When
replacing the installation, check that the
strainer is in place.
14
for contractors
If the correct function cannot be assured
because the flow pressure is too low, e.g.
< 0.2 Mpa (< 2 bar), replace the flow li-
miter (21) with the washer supplied (22);
if necessary, increase the water supply
pressure.
Please note:
Never replace the flow limiter (21) with
the washer (22) when using a thermo-
static valve.
Never use the three-way shut-off valve (5)
to reduce the flow rate.
3.8 Electrical connection
Connect the electrical supply cable to the ter-
minal strip (see Wiring diagram I ).
3.10 Initial start-up
(only by a qualified contractor)
1 Fill and vent the equipment.
Please note: risk of running dry!
Open and close all connected draw-off
valves several times, until the air has
been purged from the pipework and
the equipment, see "2.2 Important
information".
Activate the safety pressure
2
limiter AP 3.
electronic is supplied with the safety
pressure limiter in tripped state (press
the reset button).
3 Push set value transducer cable
plug onto the PCB.
4 Fit the equipment cap and secure
with the screw.
5
Switch on the mains power.
6 Turn the temperature selector
clockwise and anti-clockwise, to
calibrate the set value transducer.
6 Check the instantaneous water
heater function.
F
8 Remove the protective film from
the user interface.
Possible displays by the LED "traffic
light" indicators ( A 10, see also "7. Trou-
bleshooting"):
red
yellow
G
green
Equipment handover
Explain the equipment function to the user
and familiarise the user with its operation.
Important information:
• Make the user aware of possible dangers
(scalding).
• Hand over these instructions to the user
for safekeeping.
The DHB-E ... Si
illuminates in case of faults
illuminates when heater is on
flashing: power on
Important information:
The protection level IP 25 (hose-
proof) can only be ensured with a cor-
rectly fitted cable grommet A (6) and seal
on the cable bush.
Connect the equipment to earth.
Electrical connection with power cable
> 6 mm²: Enlarge the hole in the cable grom-
met F (6).
3.9 Completing the installa-
tion
1. Open the three-way shut-off valve G (5).
2. Fit the back wall base E .
1
2
4
5
6
1.
3
°C
electro nic
2.