STIEBEL ELTRON DHM 3 Bedienung Und Installation 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 DHM 3 and DHM 4
11 Jet regulator SR 5 for DHM 6 and DHM 7
12 Identification plate
13 hose connection 3/8", 500 mm long,including washers *
14 T-piece 3/8" *
* only for pressurised connection
2.2 Important information
Note
Air in the cold water pipe will destroy the bare-wire heat-
ing system of the DHM. If the water supply to the DHM
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, Mini-Instantaneous Water Heater
DHM is designed to supply warm water for one tap only.
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
see special accessories
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 guaran-
teed if the original accessories and spare parts intended for
the unit are used.
- The following should also be observed:
- In accordance with IEE and WRC Regulations.
- Regulations of the local energy supply company.
- Regulations of the relevant water supply company.
- The unit rating plate.
for the qualified installer
- 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 it is used out of 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.
- CE designation
The CE designation shows that the appliance meets all the essential
requirements:
- Low Voltage Directive (Council Directive 2006/95/EC).
Electromagnetic Compatibility Directive (Council Directive
2004/108/EC). For appliances tested to DIN EN 61000-3-11, see
chapter "Specification" for the "Max. mains impedance Z max".
Appliances without details comply with DIN EN 61000-3-3. These
appliances are not subject to any special connection requirements.
2.6
Under-sink installation
a
b
2.7
1
2
3
4
5
6
7
Installation location
B
Pressurised connection
Unpressurised connection
Note
The appliance should be installed according to choice
as an 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.
Unit installation
C
Loosen cover securing screws by two turns.
Using a screwdriver, release the snap closing catch.
Take off the unit front cover with heating block.
With the help of a pair of nippers, break out through open-
ing for the connection cable.
Fix the unit rear panel to the wall using dowels and screws;
use the unit rear panel as a drilling template.
Hook on the unit front panel with heating block.
Engage the heating block in the snap closing catch.
Secure the unit front cover with 2 screws.
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