Regulations And Provisions; Electrical Installation; Installation Location; Unit Installation - STIEBEL ELTRON DNM 3 Gebrauchsanweisung

2.5 Regulations and provisi-
ons
• Installation (water and electrical installation),
as well as the first start-up and maintenance
of this unit, may only be carried out by a
qualified installer in accordance with these
instructions.
• Faultless operation and operational safety
are only guaranteed if the original acces-
sories and spare parts intended for the unit
are used.
• In accordance with IEE and WRC Regula-
tions.
• Regulations of the local energy supply com-
pany.
• Regulations of the relevant water supply
company.
The following should also be observed:
• The unit rating plate.
• Technical data (see Table 1).
The specific electrical resistance of
the water must not be lower than
specified on the rating plate. In the case is
used out ot the water grid supply network,
the lowest electrical resistance of the water
is to be taken into account (see Table 2).
Your water supply company will advise you
of the specific electrical resistance or the
electrical conductivity of the water.
Water installation::
• A safety valve is not necessary.
• Operating the unit with preheated water is
not permitted!
• Fittings for pressurised units are not permit-
ted!

Electrical installation:

• It must be possible to isolate the unit from
the main supply on all poles with an isolat-
ing distance of at least 3 mm, for example
using fuses.

2.6 Installation location

The appliance should be installed
according to choice as an over-sink or
under-sink unit' in a closed, frost free room
in the vincinity of a water draw off point
Dismantled unit is to be stored in a frost-
free place, as residual water always remains
in the unit.

2.7 Unit installation

• DNM als Untertisch-Montage:
1
Loosen cover securing screws by two
turns.
2
Using a screwdriver, release the snap
closing catch.
3
Take off the unit front cover with heating
block.
4
With the help of a pair of nippers, break
out the feed-through opening for the
connection cable.
5
Fix the unit rear panel to the wall using
dowels and screws; use the unit rear
panel as a drilling template.
6
Hook on the unit front panel with heating
block.
7
Engage the heating block in the snap
closing catch.
8
Secure the unit front cover with screws
(Use enclosed sticker with company logo
to replace existing one).
Screw connecting hoses of the MAZ or MAE
unit onto the water connections A (1 and
4, see fittings description), when doing this use
a 14 mm spanner on the unit as a counter-
force.
• DNM with wall fitting MAW:
The cold water pipe and MAW wall
fitting must be safely secured.
1. Screw the MAW wall fitting into the wall
disc.
2. Screw the DNM unit onto the fitting;
when doing this use a 14 mm spanner on
the unit as a counter-force.
• DNM for over sink installation without
wall fitting:
Installation of the unit as shown in illustrati-
1 8
on to (unit rotated by 180 degree).
B

2.8 Electrical connection

The unit must be connected to the
protective earth terminal.
This appliance is fitted with a power supply
cable.
For over sink installation with wall fitting MAW
please put the power supply cable behind the
appliance B (9a).

2.9 First start-up

C
carried out by a qualified installer)
1
2
1 Fill and deaerate the unit.
Note: danger of running dry!
Open and close the tap repeatedly
until the pipework and the unit are
free of air. For guidance on air, see
„2.2 Important information".
2 Switch on the mains power.
3 Test the operating mode of the
instantaneous water heater and
armature.
Handover of the unit
Explain the function of the unit to the user
and familiarize him or her with its use.
• Draw the user's attention to possible ha-
zards (scalding).
• Hand over these instructions for careful
retention.

2.10 Special accessories

• Jet regulator „SR" for use in the jet-regula-
tor screw fitting M22/M24.
DNM 3 / DNM 4:
– SR 3
put regulator.
D
DNM 6:
– SR 5
• Only non pressurised taps can be used for
this appliance!
– MAW - non pressurised wall fitting
order no: 18 54 74
– MAZ - non pressure type sink/basin tap
order no: 18 54 75
– MAE - non pressure type single lever
mixer tap with pull-up plug
order no: 18 54 76
(may only be
order no: 25 45 13 with out-
Best.-Nr. 27 05 82
9