STIEBEL ELTRON DHF 12 - 24 C с 01.04.2007 - Manual (Page 20)

20 |DHF C www.stiebel-eltron.CoM
instAllAtion
instAllAtion
— One-hand mixer and thermostatic fittings must be suitable for
hydraulically controlled instantaneous water heaters.
— Practical hints:
So that the switch-on quantities (see Table 3) of stage • and stage
• • are safely reached, the pressure loses of the instantaneous
water heater, fitting, hand-held shower, shower hose and the pipe
network must be taken into account upon installation.
Typical pressure loss values for a shower water quantity of approx.
10 l/min:
— one-hand mixer 0.04 - 0.08 MPa
— thermostatic fittings 0.03 - 0.05 MPa
— hand-held shower 0.03 - 0.15 MPa
7.4 Provisions and regulations
— 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.
— Regulations of the local energy supply company.
— Regulations of the relevant water supply company.
— Notice for Australia / New Zealand:
The installation shall comply with AS/NZS 3500.4.
— Install the unit flush with the wall at the lower end (18,
observe dimension ≥ 110 mm).
the following should also be observed:
— The unit rating plate.
— Technical data.
water installation:
cold water line
Permissible materials: Galvanised steel pipe, stainless steel pipe,
copper pipe or plastic pipe.
Plastic piping systems
For the cold water unit connection a metal pipe of approx. 1 m long
must be installed.
dHw line
Permissible materials: Stainless steel pipe or copper pipe.
Plastic piping systems
— The DHF ... C is not suitable for installation with plastic piping
systems for the hot water pipe!
— A safety valve is not necessary.
— Operation with pre-heated water is not permitted!
— Thermostatic tap fittings - see ”Adjustment recommendation”.
electrical installation
— Electrical connection only to permanently-installed cables.
— 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.
7.5 installation location
!
The DHF ... C compact control is to be installed
vertically in accordance with
a (over-sink or under-
sink) in a closed, frost-free room, as near as possible
to the tap point (a dismantled unit is to be stored
in frost-free conditions, since residual water always
remains in the unit).
7.6 Preparing for unit installation
»
B Turn locking cap (3) to the left and withdraw.
» Unscrew cover securing screw and remove device cover.
» Detach mounting bracket (19) from the unit.
» Thoroughly flush through the cold water supply pipe.
» In the case of a replacement installation, the available cold water
3-way three-way isolating valve (
d , 6) can if necessary be used.
» With the help of the template (separate this from the operating
and installation instructions), determine the position of the cable
entry (concealed connection) and the mounting bracket (19).
»
a Cut the electrical connection cable to length and strip.
»
c Secure the mounting bracket.
» When replacing DHF/DHA old models (height 370 mm), the
available drilled securing holes (20) can be used.
» Secure the unit to mounting bracket with the screwed sleeve
(14). Using the nut on the threaded bolt (21), unevennesses in
the wall, caused for example by misaligned tiles, can be com-
pensated for (maximum 12 mm).
7.7 water connection
» Install the supplied parts. Note the direction arrows of the water
installation (
d - e ).
the three-way isolating valve (6) must not be used to restrict
the flow rate!
concealed connection
d
surface-type connection e
!
The IP25 protection mode (hose-proof) is guaranteed
in the case of the following connection.
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With a Stiebel Eltron surface-type tap fitting WKMD or WBMD
(see ”Special Accessories”):
— Use water plugs G ½ (23). Water plugs fall within the scope of
supply of the Stiebel Eltron WKMD and WBMD fittings.
— In the case of third party tap fittings, the special accessory
module with 2 water plugs (see ”Special accessories”) is
required.
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In the case of surface-type installation (see ”Special accesso-
ries”):
» 1. Use water plugs G ½ (23).