Operating instructions
Operating instructions ecoTEC plus 0020124810_FT1b
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3  Equipment and functional 
description
3.1 Design
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16
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Fig. 3.1  Functional components VUW
Key
1  Diaphragm expansion tank
2  Air intake pipe
3  Compact thermal module
4 Ignition electrode
5 Fan
6  Automatic air vent
7 Pressure gauge
8 High-efficiency pump
9  Priority switching valve with by-pass
10  Fan sensor (hot water)
11 Electronics box
12  Secondary heat exchanger
13 Gas fitting
14 Water pressure sensor
15  Integral condensation heat exchanger
16  Connection for the air/exhaust gas pipework
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Fig. 3.2  Functional components VU
Key
1  Diaphragm expansion tank
2  Air intake pipe
3  Compact thermal module
4 Ignition electrode
5 Fan
6  Automatic air vent
7 Pressure gauge
8 High-efficiency pump
9  Priority switching valve with by-pass
10 Electronics box
11 Gas fitting
12 Water pressure sensor
13 Integral condensation heat exchanger
14  Connection for the air/exhaust gas pipework
Equipment and functional description 3










