Supplied By www.heating spares.co Tel. 0161 620 6677
3
Instructions for installation and servicing ecoTEC
Contents
7
Inspection and maintenance . . . . . . . . . . . . 37
7.1
Initial inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
7.1.1
Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . 37
7.1.2
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
7.1.3
Overview of the inspection and maintenance
tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
7.1.4
Functional check of boiler operation . . . . . . . . . 38
7.2
Servicing the burner module . . . . . . . . . . . . . . . . 39
7.2.1
Removing the burner module . . . . . . . . . . . . . . . 39
7.2.2 Cleaning the integral condensation heat
exchanger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
7.2.3 Checking the burner . . . . . . . . . . . . . . . . . . . . . . . 40
7.2.4 Refitting the burner module . . . . . . . . . . . . . . . . 40
7.3
Cleaning the condensate siphon . . . . . . . . . . . . . 41
7.4
Checking the expansion vessel . . . . . . . . . . . . . . 42
7.5
Recommissioning the boiler . . . . . . . . . . . . . . . . . 42
7.6
Test operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
8
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . 42
8.1
Logical fault finding procedure . . . . . . . . . . . . . . 42
8.1.1
Status codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
8.1.2 Diagnostic codes . . . . . . . . . . . . . . . . . . . . . . . . . . 43
8.1.3 Fault codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
8.1.4 Fault memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
8.4
Test programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
8.5
Resetting parameter to factory settings . . . . . . 48
9 Parts
replacement
. . . . . . . . . . . . . . . . . . . . . 48
9.1
Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . 48
9.2
Replacing burner . . . . . . . . . . . . . . . . . . . . . . . . . . 48
9.3
Replacing fan or gas valve . . . . . . . . . . . . . . . . . . 49
9.4 Replacing
expansion
vessel . . . . . . . . . . . . . . . . . 49
9.5
Replacing primary heat exchanger . . . . . . . . . . . 50
9.6
Replacing electronics and display . . . . . . . . . . . . 51
9.7 Check
CO
2
content and if necessary set
(air-ratio adjustment) . . . . . . . . . . . . . . . . . . . . . . 51
10
Recycling and disposal . . . . . . . . . . . . . . . . . 52
11
Vaillant service . . . . . . . . . . . . . . . . . . . . . . . 52
Appendix
EG declaration of conformity . . . . . . . . . . . . . . . . 53
Benchmark gas boiler commissioning
checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Summary of Contents for ecoTEC plus 612
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