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2.8 Electrical connection
Remove the bottom-cap from the water
heater by pulling off the regulator button
and removing the screws
Prepare electrical connection cable
Electrical circuit diagram K
19 Temperature regulator
20 Safety temperature limiter
21 Button for rapid heating
22 Remote control button and glow
lamp indicating rapid heating
Connection variants
The output required is to be connected
in accordane with the connection
examples.
Dual-circuit connection
– Dual-counter measurement
23 Electricity utility company contact
– Single-counter measurement
23 Electricity utility company contact
Single-circuit connection
O
Boiler operation
2.9 Installation conclusion
Mark the connection power and
voltage on the device rating plate with
a ball-point pen.
Place the bottom flap in position and
G
secure it with screws
Press the temperature selector button
G
into position
.
14
2.10 First start-up
(may only be carried out by a qualified
installer)
G
.
Fill the unit, bleed it, and flush it
1
H
.
through thoroughly.
1
2
Turn the temperature selection
2
3
1
1
button to the right as far as the
3
4
1
stop.
2
2
4
5
2
Switch on the mains voltage.
3
3
5
6
3
Check the mode of operation of
4
4
6
the unit.
7
4
5
5
7
In unvented operation:
5
8
6
6
8
Check the safety group for
6
9
7
7
functional performance.
9
7
10
8
8
10
Note:
8
11
9
9
– At temperatures of below -15 °C (e.g.
11
9
L M
12
10
10
transport/storage) the safety temperature
12
10
13
limiter may trip; press the reset button
11
11
13
M
C
11
(
10).
14
12
12
14
12
15
13
Handing over the unit:
13
15
N
13
Explain the function of the unit to the users
16
14
14
16
14
and familiarise them with its use.
17
15
Important notes:
15
17
15
18
• Advise the users about possible hazards
16
16
18
16
(such as scalding).
19
17
17
19
• Hand over these Operating and Installation
17
20
18
Instructions for safekeeping. All the
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18
18
21
information provided in these Instructions
19
21
19
19
must be followed carefully. These
22
20
20
22
20
Instructions provide details about safety,
.
23
21
operation, installation, and the
23
21
21
24
maintenance of the unit.
22
22
24
22
23
23
23
24
24
24
2.11 Maintenance
When carrying out any work, disconnect
all poles from the mains supply!
Check the protective anode for the first
time after two years of operation, and
replace it if necessary; to do this, the
heating element must be removed. After
replacing the protective anode, the
qualified installer will decide at what
intervals further checks are to be carried
out.
Transitional resistance between protective
anode and container connection nozzle
max. 1.0 Ω.
Check the safety group regularly.
Other instructions regarding the unit:
Only remove limescale from the element
after disassembly. Do not treat the
container surface and protective anode
with descaling products.
Safety device:
Regulator-limiter combination immersion
I
depths
:
a - Limiter sensor
b - Regulator sensor
Draining the storage water heater
cylinder: Before draining the cylinder,
disconnect the unit from the mains supply.
– Close the isolating valve in the cold
water feed line.
– Open the hot water fittings fully at all
draw-off points.
– Unscrew the cap from the drainage
C
9).
nozzle (
Hot water may come out during
draining.
The corrosion protection resistor
the insulating plate must not be damaged
or removed during servicing work. When
replacing the corrosion protection resistor
the assembly is to be re-established in the
correct manner.
a Copper heating element
b Insulating plate
c Pressure plate
d Corrosion protection resistor
J
on
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