STIEBEL ELTRON DNM 3 Gebrauchs- Und Montageanweisung Seite 15

2. Installation instructions
2.1 Unit structure
A
1 cold water connection, SW14
2 Sieve within cold water connectrion
3 Snap closing catch
4 Hot water connection; SW14
5 Cover securing screw
6 Unit rear panel
7 Unit front panel
8 Fixing holes
9 Connection cable 700 mm long
10 Jet regulator SR 3 for DNM 3 and DNM 4
11 Jet regulator SR 5 for DNM 6
12 Identification plate
2.2 Important information
Note
Air in the cold water pipe will destroy the bare-wire
heating system of the DNM. If the water supply to the
DNM has been interrupted, for example due to the risk of
frost or work on the water pipe, the following steps must
be carried out before the system is used again:
1. Disconnect supply or disconnect the fuses.
2. Open a hot water tap downstream of the device for as
long as it is necessary for the device and the cold water
pipe to be freed of air.
3. Reconnect the supply or connect the fuses again.
All information in these Instructions for Use and Installation must
be followed carefully. They provide important information with
regard to safety, operation, installation, and maintenance of the
device.
2.3 Brief description
The hydraulically controlled open (non pressure-type)
instantaneous water heater DNM is designed to heat cold water
for one draw off point.
The unit is suitable for hand wash basins, for example in guest
WC's, and for under-sink and over-sink installation.
The bare-wire heating system is suitable for low-lime and limy
water (see Table 2 for ranges of use).
2.4 Fittings
Only non pressurised taps can be used for this appliance.
A
Please use jet regulator
DNM in question).
2.5 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 accessories 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 observed:
- The unit rating plate.
for the qualified installer
(10 or 11) depending on the type of
- 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 only up to max.
35 °C is permitted!
- Fittings: see "Fittings"
Electrical installation:
- It must be possible to isolate the unit from the main supply
on all poles with an isolating 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
C
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.
With the help of a pair of nippers, break out through
opening for the connection cable.
4
Fix the unit rear panel to the wall using dowels and screws;
use the unit rear panel as a drilling template.
5
Hook on the unit front panel with heating block.
6
Engage the heating block in the snap closing catch.
7
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
A
connections (1 and 4, see fittings description), when doing this
use a 14 mm spanner on the unit as a counter-force.
DANGER Electrocution
!
Always fit the appliance back panel.
DNM with wall fitting MAW:
f The cold water pipe and MAW wall fitting must be safely f
secured.Screw the MAW wall fitting into the wall disc.
f Screw the DNM unit onto the fitting; when doing this use a 14 f
mm spanner on the unit as a counter-force.
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