Functional Diagrams - Vaillant ecoMAX SERIES Instructions For Installation And Servicing

2 Boiler Specification

2.5 Functional diagrams

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Fig. 2.4 Functional diagram ecoMAX 800/2, 835
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
9 DHW heat exchanger
10 Temperature sensor (NTC 3)
11 Automatic bypass valve
12 CH flow service valve
13 Domestic hot water outlet
14 Gas service valve
15 Cold water inlet
16 CH return service valve
17 Pressure relief valve
18 Aqua sensor
19 Diverter 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
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Fig. 2.5 Functional diagram ecoMAX 600/2, 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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