Description of the appliance
Installation and maintenance instructions ecoTEC 0020173113_01
11
3
3
Description of the appliance
Design
5
6
7
8
11
9
10
12
14
4
3
1
2
15
13
3.1
Functional elements of the VU system boiler
Key
1
Gas valve
2
Water pressure sensor
3
Heat exchanger
4
Connection for the air/flue gas duct
5
Expansion vessel
6
Air intake pipe
7
Compact thermal module
8
Ignition electrode
9
Fan
10
Automatic air vent
11
Pressure gauge
12
Internal pump
13
Expansion relief valve
14
Electronics box
15
By-pass valve
5
6
7
8
11
9
10
12
13
15
4
3
1
2
18
17
16
14
3.2 Functional elements of the VUW combination boiler
Key
1
Gas valve
2
Water pressure sensor
3
Heat exchanger
4
Connection for the air/flue gas duct
5
Expansion vessel
6
Air intake pipe
7
Compact thermal module
8
Ignition electrode
9
Fan
10
Automatic air vent
11
Pressure gauge
12
Internal pump
13
By-pass valve
14
Expansion relief valve
15
Electronics box
16
Diverter valve
17
Impeller sensor (hot water)
18
Secondary heat exchanger