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

2.6 Regulations and
provisions
• 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 accesso-
ries and spare parts intended for the unit
are used.
• In accordance with IEE and WRC
Regulations.
• Regulations of the local energy supply
company.
• Regulations of the relevant water supply
company.
The following should also be ob-
served:
• The unit rating plate.
• Technical data (see Table 1).

2.7 Technical data

(the data on the unit identification plate are applicable)
Type
Rated power
Rated voltage
Rated current
Hot water output ∆ϑ = 25 K
Flow rate „on"
Flow rate „off"
Automatic flow regulation
Pressure drop (during switch-on flow)
Max. inlet temperature
Rated capacity
Design
Weight
Protection class in accordance with EN 60335
Protection mode in accordance with EN 60529
Test mark
Structural inspection test certificate
Water connections (external thread)

Electrical connection

Heating system
Area of use
Range of use with regard to specific
electrical resistance / conductivity
Table 1
Areas of application for instantaneous water heaters relative to the specific
electrical conductivity / specific electrical resistance of the water
Designation as
Specific electrical resistance
corresponding to
specific electrical conductivity
Table 2
* The values for the specific electrical resistance and the specific electrical conductivity are
determined at different temperatures in different regions. This must be taken into account in
the evaluation.
The specific electrical resistance of
the water must not be lower than
specified on the rating plate. In the case of
a 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
permitted!
• 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.
DNM 3
3.5 kW
230 V ~
15 A
2.0 l/min
≤ 2.0 l/min
≥ 0.9 l/min
2.2 l/min
0.05 MPa
25 °C
0.1 l
open
1.4 kg
IP 25
See unit identification plate
PA-No. (Nr. for Germany)
G 3/8, surface installation
1/N/PE ~ 230 V
Bare-wire
Low-lime and limy water
See Table 2
Areas of application for different water analysis
reference temperatures* designation
Standard at
at 15 °C 20 °C
≥ 1100 Ωcm ≥ 970 Ωcm
≤ 90,9 mS/m ≤ 103 mS/m
≤ 909 µS/cm ≤ 1030 µS/cm

2.8 Installation location

or under-sink unit
free room in the vicinity of the water tap
(dismantled unit is to be stored in a frost-
free place, as residual water always
remains in the unit).

2.9 Unit installation

• Under-sink installation with MAZ
or MAE fitting
Loosen cover securing screws by two
1
turns.
1
2
Using a screwdriver, release the snap
1
2
3
closing catch.
1 2
3
4
Take off the unit front cover with heating
2
3
4
5
block.
1
3
4
5
6
With the help of a pair of nippers, break
2
4
5
6
1 7
out the feed-through opening for the
3
5
6
7
connection cable (break-off point).
1 2
8
4
6
7
DNM 4 8
1 2 3
Fix the unit rear panel to the wall using
9
5
7
8 dowels and screws; use the unit rear
9
4.4 kW
3 4 2
10
6
8
panel as a drilling template.
9
10
5 4 3
230 V ~
11
7
9
Hook on the unit front panel with heating
10
11 4 5 6
12 8
19 A
10
block.
5 7 6
11 12
9
13
2.5 l/min
11
Engage the heating block in the snap
6
8 7
12 13
10
≤ 2.6 l/min 14
12
closing catch.
7
8 9
13 14
11
15
≥ 1.15 l/min 13
Secure the unit front cover with screws.
8
10 9
15 14
12
14 16
2.8 l/min
9
Screw connecting hoses of the MAZ or MAE 10 11
13 16
15
15
17
unit onto the water connections (1 and 2)
0.06 MPa
10
12 11
14
17
16
16
(see fittings description), when doing this use
18
11
12 13
15
18
17
a 14 mm spanner on the unit as a counter-
17
19
12
13 14
16
force.
19
18
18
20
13
15 14
17
20
19 19
21
• Over-sink installation with MAW 14
15 16
18
21
20
20
wall fitting
15
22
16 17
19
1
21 22
21
16
23
17 18
20
22
23
22
17
19 24 18
21
23
24
23
18
1. Screw the MAW wall fitting into the wall 20 19
22
24
24 19
disc.
21 20
23
2. Screw the DNM unit onto the fitting;
20
21 22
24
when doing this use a 14 mm spanner on
21
22 23
the unit as a counter-force.
22
23 24
23
• Over-sink installation without wall
24
fitting
24
Installation of the unit as shown in
illustration
180°).
2.10 Electrical connection E
at
• This appliance is fitted with a power supply
25 °C
cabel.
≥ 900 Ωcm
≤ 111 mS/m
≤ 1110 µS/cm
The DNM is to be installed,
according to choice, as an over-sink
C
, in a closed, frost-
D
The cold water pipe and MAW wall
fitting must be safely secured.
1
2
3
4
5
6
7
D
(unit rotated by
to
1
8
9
2
10
3
11
4
The unit must be connected to the
12
5
protective earth terminal.
13
6
14
7
15
8
16
9
17
10
18
11
19
12
20
13
21
14
22
15
9