Installation Alternatives; For The Qualified Installer - STIEBEL ELTRON DEL 24 SLi Gebrauchs- Und Montageanweisung

4. Installation alternatives

Electro: UP – top, AP – bottom/top, Load-shedding relay; Water: AP; Turned device cover; Tile offset
Alternative installations are shown in
figures J - S .
4.1 Mounting bracket when
equipment is replaced
• The existing mounting bracket can be
used when replacing Stiebel Eltron equip-
ment (except "DHF"). Use a suitable
grommet in the back wall.
• When replacing "DHF", turn the moun-
ting bracket (a) 180° (logo "DHF" turned
towards the reader) and move the threa-
ded stud (b) to the upper r.h. corner.
• When replacing third party equipment,
use suitable holes for rawl plugs (c) to
secure the mounting bracket supplied.
4.2 Electrical connection
– finished walls
• Cut or make an opening for the power
cable in the back wall and equipment cap
(see K for possible locations for openings.
• The protection level changes to IP 24
(splash-proof) for electrical connection on
finished walls.
Attention:
The equipment type plate must be mar-
ked as follows in ballpoint pen:
Cross through IP 25 and put a cross in
the box IP 24.
4.3 Electrical connection
– from above
L
• Cut a hole for the power cable in the ca-
ble grommet.
• Push the terminal strip upwards from
below, for this press in the snap-in tab (a)
and isolate the terminal strip.
Attention:
Install flexible wires under the cable guide
(b).
Snap the terminal strip into place at the
top (c).
4.4 Rotated equipment cap
The equipment cap can be rotated for un-
der-worktop installation M :
• Press in the snap-in tab to remove the
user interface (a) from the equipment
cap.
• Rotate the equipment cap (b) (not the
equipment). Insert the user interface and
lock all snap-in tabs into place.
Attention:
Do not install a user interface with dama-
ged snap-in tabs.
• Push set value transducer cable plug onto
the PCB (see 3 "3.10 Initial start-up").
• Hang the equipment cap (b) at the bot-
tom and swing up into position on the
back wall. Push the cap forwards and
backwards to ensure correct seating of
the surrounding back-wall gasket.
• Screw down the equipment cap.
for the qualified installer
4.5 Installation of cable
grommet
The equipment may be installed with a retro-
fitted cable grommet N .
J
• Press out the cable grommet using a scre-
wdriver (a).
• Secure the equipment on the mounting
bracket.
When using a 10 or 16 mm² power cable,
enlarge the hole in the cable grommet.
• Push the cable grommet over the power
cable (b, installation aid), fit to the back
wall (c) and snap in place (d).
4.6 Priority control
When used in conjunction with other electri-
cal equipment, e.g. electric storage heaters, use
the load circuit breaker:
a Load circuit breaker (see "7. Special ac-
cessories").
b Control cable to the contactor of the
other equipment (e.g. electric storage he-
ater),
c Control contact – opens when switching
the DEL ... SLi on.
The load breaker trips as soon as the
DEL ... SLi starts.
Only connect the load circuit breaker to the
centre phase of the equipment terminals
(mains power).
4.7 Compression fittings
– finished walls
Stiebel Eltron pressure valve (finished
walls)
WKMD or WBMD P
(part no. see "7. Special accessories")
• Fit the water plug G ½ with gaskets (a)
(part of the standard delivery of Stiebel
Eltron pressure valves for finished walls).
Two water plugs (special accessory set)
(see "7. Special accessories") are required
for third party pressure valves.
• Fit the valves.
• Push the back-wall base below the valve
connection pipes and snap it into the
back-wall top.
• Screw the connection pipes to the equip-
ment.
Prepare the equipment cap for this installa-
tion R :
• Break out the bush knock-outs (a) in the
equipment cap cleanly, if necessary use a
file.
• Knock out the lips from the cap guides
supplied (b). If the valve connection pipes
are slightly offset, the cap guides (b) can
be used without knocking out the lips. In
this case, the back-wall guides (c) are not
used).
• Snap the cap guides into the bush knock-
outs in the equipment cap.
• Fit the back-wall guides supplied (c) onto
the pipes (press top and base onto pipe
and push together).
• Push back-wall guides (c) onto back wall
of the equipment until it stops.
Securing equipment
When connected to flexible water pipe
systems, the back wall must be secured at the
bottom by means of an additional screw (d).
Hang the equipment cap (b) at the top and
swing down onto the back wall. The webs of
the cap guides must grip into the back-wall
guides and lock into them.
4.8 Soldered fitting
O
– finished walls
Using the special accessory Q (a), part no.
see "7. Special accessories", it is possible
to provide a screw connection with the
customer's 12 mm copper pipes.
• Install parts of the special accessory.
• Solder the insert to the copper pipes.
• Push the back-wall base underneath the
valve connection pipes and snap into the
top of the back wall.
• Screw the connection pipes to the equip-
ment.
Attention:
Note the information in "4.7 Compression
fittings – finished walls":
• Equipment cap, equipment back wall and
equipment fixing must be prepared for
this installation method.
• Equipment fixing.
• Cap installation.
4.9 Installation of back-wall
base
With connection fittings for finished walls,
the back-wall base can also be fitted after
the valves have been fitted S :
• Cut the back-wall base (3) as shown in
the diagram (a).
• Insert the links (b from the extra item
ordered) from the back into the centre
part.
• Guide the centre part underneath the
pipes, push up and fit with the back-wall
base.
• Fit the back-wall base to the back wall.
The back-wall base must be secured with
an additional screw (c).
• Fit the valve connection pipes to the
equipment fittings.
4.10 Offset installation for
tiled surfaces
When the equipment is fitted onto a tiled
surface ( B max. 20 mm), the toggle
( F 15) initially adjusts the wall clearance and
then secures the equipment.
17