Vaillant ecoTEC plus 618 Specifications download pdf (Page 26)

26 Instructions for installation and servicing ecoTEC

X 2

BUS 24V

7 8 9— +

230V

L N 3 4 5

X 20

X40

X31

X12

X41

Electronic control box

Fan unit

Ignition electrode

NTC

flow

Gas valve assembly

Hot water

contact C1/C2

Water pressure sensor

NTC

return

X 20/5 red

X 20/7 black

X 20/8 blue

X 2/10 black

X 2/14 brown

X 2/12 green

X 2/11 red

X 2/9 black

Pump

X 20/18 red (24 VDC)

X 20/9 blue (earth)

X 20/16 blue (earth)

X 20/13 black

X 20/12 black

X 20/4 grey (PWM)

X 20/3 black (Hall signal)

X 20/17 red (24 VDC)

tank NTC

connection

X 2/4 orange

X 2/10 black

Thermal fuse

Plug

coupling

Fig. 4.17 Connection wiring ecoTEC system boiler

4 Boiler installation sequence

1 2 ... 21 22 23 24 25 26 27 28 29 30 31 ... 55 56

Contents 2
1 Introduction 4
Introduction 1 5
2 Boiler specifications 6
Boiler specifications 2 7
3 General requirements 10
General requirements 3 11
Fig. 4.2 Assembly template 17
-+789 LN 345 23
Electronic control box 25
5 Commissioning Part I 28
Commissioning Part I 5 29
Inspection and maintenance 7 35
7 Inspection and maintenance 36
8 Troubleshooting 40
Troubleshooting 8 41
9 Parts replacement 46
Parts replacement 9 47
10 Recycling and disposal 50
11 Vaillant service 50
Appendix 51
839592_03 GB 03 2006 56

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Vaillant ecoTEC plus 618 Specifications Page 26

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