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104 | Combined buffers for central heating and domestic hot water production
Water heater volume,
ltrs
200
300
400
500
Table 9.
Water heater volume,
ltrs
200
300
400
500
Table 10
IV. Protection against corrosion -
magnesium anode
The magnesium anode protects the water
tank's inner surface from corrosion. The an-
ode element is an element undergoing wear
and is subject to periodic replacement.
In view of the long-term and accident free
use of your water heater, the manufacturer
recommends periodic inspections of the
magnesium anode's condition by a quali-
fied technician and replacement whenever
required, and this could be performed during
the appliance's technical preventive mainte-
nance. (once per year or two depending on
water quality).
For replacements, please contact the au-
thorized service stations!
Valve Size inlet, at least
DN15 (R1/2)
DN20 (R3/4)
DN20 (R3/4)
DN20 (R3/4)
Pressure at cold water
inlet (CW), Bars
3
4
5
3
4
5
3
4
5
3
4
5
Flow diameter at least,
mm
Ø12
Ø14
Ø14
Ø14
Minimum expansion vessel useful volume in liters at
water heater temperature:
10°C - 60°C
7
8
12
10
13
18
13
17
23
17
21
29
V. Operating mode
Before using the water heater make sure
that the appliance is connected with the
heating installation in correct way and is
filled with water.
VI. Important rules
• The use of the appliance for any purpose
other than that it is intended is prohibited.
• Do not switch on the water heater unless
you established it was filled with water.
• The installation and maintenance must
be carried out by a professional from the
sector in accordance with manufacturer's
instructions.
• The water heater must only be installed
in premises with normal fire resistance.
There should be a siphon connected to a
plumbing drainage. The premises should
be protected from freezing and the tem-
perature should never be lower than 4 °C.
• When connecting copper pipes to the in-
lets and outlets, use an intermediate di-
electric connection. Otherwise there is a
Maximum heating power,
kW
75
150
150
150
10 °C - 70°C
9
11
16
13
17
24
18
23
32
22
28
39
EN
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