Dimensions; Boiler Connections; Functional Diagram - Vaillant ecoMAX 635 Instructions For Installation And Servicing

2 Boiler Specification

2.2 Dimensions

480
2
7
Ø 20
100 100
Fig. 2.1
2 Hanging bracket
3 Heating–system return
5 Gas connection
7 Heating–system flow

2.3 Boiler connections

150
Ø15
Ø22
Ø22
100 100
2.2 Boiler connections
6 6
190
3
7
Ø 20
100
180
Ø 20
5
450
79
25
33.5
113

2.4 Functional diagram

1
2
3
4
5
6
7
8
10
12
Fig. 2.3 Functional diagram ecoMAX 635
1 Air duct
2 Main heat exchanger
3 Burner
4 Condensate trap
5 Temperature sensor (NTC 1)
6 Temperature sensor (NTC 2)
7 Automatic air vent
8 Circulating pump
10 Automatic bypass valve
12 CH flow service valve
14 Gas service valve
16 CH return service valve
17 Pressure relief valve
20 Pressure gauge
21 Main ON/OFF control
22 Boiler display
23 Electronic box
24 Gas valve
25 Fan
26 Expansion vessel
27 Expansion vessel charging valve
28 Flue gas duct
Instructions for installation and servicing ecoMAX
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25
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22
21
20
17
16
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