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2. Installation instructions
2.1 Appliance layout
1 Temperature selector button
2 Thermometer (when delivered is located
in the switchbox cover)
3 Display element for signal anode
4 Plastic hood (on delivery fastened to the
thermal insulation)
5 Switchbox cover
6 Sockets G 1/2, e.g. for circulation
7 Signal anode
8 Transport protection element
9 Hot water drain sockets G 1
10 Steel cylinder with special enamel coating
11 Thermal insulation
12 Electric heating element
13 Cold water inlet G 1
14 Cable apertures PG 16 and PG 13.5 for
electrical connection
2.2 Regulations and
provisions
Installation (water and electrical installation)
of this appliance, taking into service for the
first time, and maintenance may only be
carried out by a qualified installer, in accor-
dance with these instructions.
Perfect function and operational safety can
only be guaranteed if original accessories
and spare parts are used which were
intended for it.
DIN VDE 0100.
Regulations and provisions of the local
energy supply utility.
DIN 1988 / DIN 4109.
Regulations and provisions of the local
water supply utility.
The floor-standing water heater must be
secured to the floor.
The following items are also to be respected:
The appliance rating plate.
Technical Data.
Water installation
Pipe material:
– Cold water pipe – Cold water pipe
Copper pipe
Copper pipe
Steel pipe
Steel or copper pipe
Plastic pipe systems with the instantanous
water heater the operating temperature
can be adjusted upto max. 80 °C.
The maximum temperature can be limited
to 60 °C.
In case of failures temperatures can rise
up to 95 °C (max. 0.6 MPa). The assigned
plastic pipe system must be appropriate for
these conditions.
Energy Saving Law (ENEG).
– The hot water pipe must be thermally insu-
lated.
– The hot water temperature in the pipe
network is to be limited by automatic
devices or other measures to a maximum
of 60 °C. This does not apply to raw water
systems which mandatorily require higher
temperatures or a pipe length of less than
5 m.
for the qualified installer
– Hot water systems are to be equipped
A and C
with automatic devices for disconnecting
the circulation pump. In the case of floor-
standing water heaters with circulation
pipes, the circulation pump is to be
controlled by the installation of a timer
switch and contact thermostats if necessary.
Electrical installation
– Electrical connection only to fixed leads
in conjunction with the removable cable
bushing.
– The appliance must be capable of being
isolated at all poles from the mains, e.g.
by fuses, with a circuit sever of at least
3 mm.
2.3 Installation location
In an area with no risk of freezing.
Close to the water tap.
2.4 Assembly of plastic hood
The plastic hood must be fitted
before the water connections are
made and before the any circulation loop
is installed. And in the area of the nipple
[recess in the foam C (6)] the plastic hood
must be cut to fit.
Installation:
Pull the plastic hood over the container
(zipper forward) and close the zip.
2.5 Water connection
Flush the pipe through thoroughly.
Fit the hot water drain pipe.
Fit the cold water feed pipe.
Instal a type-tested safety group, such as
Stiebel Eltron ZH 1, Order No. 07 43 70
up to 0.6 MPa water pipe pressure
(pressure at rest 0.48 MPa). With pressure
at rest > 0.48 MPa, the pressure-reducing
valve DMV/ZH 1, Order No. 07 43 71, is
to be additionally installed.
Circuit layout D :
a Shutoff valve
b Pressure-reducing valve DMV/ZH 1
(if required)
c Test valve
d Backflow preventer
e Connection for measuring devices
f Drain valve
g Safety valve G 3/4, 0.6 MPa (6 bar)
h Drain
– Plan the dimensions of the drain for
a fully-opened safety valve. The drain
aperture of the safety valve must remain
open to the atmosphere.
– The safety valve drain is to be installed
with a permanent downwards
inclination.
– The information in the Installation
Instructions under „Safety valve" are to
be taken into account.
Fill the appliance with water by opening
the hot water fitting and flush it through
thoroughly.
Carry out the sealing tightness test.
Note regarding the circulation pipe:
If it is intended that a circulation pipe is to
be installed, the pipe is to be fitted to the
socket C (6). The thermal insulation is to
be removed around the socket so that the
circulation pipe can be fitted.
2.6 Electrical connection
Draw off the temperature selector button.
Remove the switchbox cover.
Prepare the connection lead and feed it
through the cable bushing C (14) into the
switchbox.
The required power rating is to be
connected in accordance with the
connection examples.
Fit the switchbox cover.
Push on the temperature selector button.
After the electrical connection, the boxes
on the appliance rating plate which
correspond to the connection power and
voltage are to be marked with a ballpoint
pen.
Electrical circuit diagram F
a Combination safety temperature limiter
and temperature regulator
Connection G and H
* Connection "N" is not permissable!
2.7 Fitting the thermometer
E
Insert the thermometer (which is in the
switchbox cover when the appliance is
supplied) as far as the stop (a), and align it.
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