16 Installation and maintenance instructions 0020244997_07
Information on the
data plate
Meaning
IP IP rating
Heating mode
Domestic hot water generation
P Nominal heat output range
Q Heat input range
D Nominal domestic hot water draw-off rate
Barcode with serial number,
7th to 16th digit = product article number
Note
Make absolutely sure that the product is compat-
ible with the gas group at the installation site.
5.5 Serial number
The serial number can be found on a plastic label behind the
front flap and on the identification plate.
Note
The serial number can also be shown on the
display of the product (→ Operating instructions).
5.6 Product design
5.6.1 Functional elements, product for heating
mode only
7
8
9
10
13
11
12
14
15
18
5
4
1
2
3
16
17
6
1 Gas valve assembly
2 Water pressure sensor
3 Venturi with mass flow
sensor
4 Heat exchanger
5 Connection for the
air/flue pipe
6 Flue gas test point
7 Expansion vessel
8 Air intake pipe
9 Compact thermal
module
10 Ignition electrode
11 Fan
12 Automatic air vent
13 Manometer
14 Internal pump
15 Bypass valve
16 Expansion relief valve
17 Prioritising diverter
valve
18 Electronics box
5.6.2 Functional elements, product with domestic
hot water generation
7
8
9
10
13
11
12
14
18
19
17
5
4
1
2
3
20
15
16
6
1 Gas valve assembly
2 Water pressure sensor
3 Venturi with mass flow
sensor
4 Heat exchanger
5 Connection for the
air/flue pipe
6 Flue gas test point
7 Expansion vessel
8 Air intake pipe
9 Compact thermal
module
10 Ignition electrode
11 Fan
12 Automatic air vent
13 Manometer
14 Internal pump
15 Bypass valve
16 Expansion relief valve
17 Electronics box
18 Prioritising diverter
valve
19 Impeller sensor (do-
mestic hot water)
20 Secondary heat ex-
changer