Buderus Logano plus GB312 Installation And Maintenance Instructions Manual page 3

6.18 Function tests . . . . . . . . . . . . . . . . . . . . . . . . 38
6.18.1Checking the ionisation current
(flame current) . . . . . . . . . . . . . . . . . . . . . . . 38
6.19 Testing the gas supply pressure . . . . . . . . . 39
6.20 Checking for leaks during operation . . . . . 40
6.21 Fitting sections of the casing . . . . . . . . . . . 40
6.22 Informing the user; handing over technical
documentation . . . . . . . . . . . . . . . . . . . . . . . 40
6.23 Commissioning report . . . . . . . . . . . . . . . . . 41
7 Shutting down the heating system . . . . . . . . 42
7.1 Shutting down the heating system at the
base controller . . . . . . . . . . . . . . . . . . . . . . . 42
7.2 Shutting down the heating system in
emergencies . . . . . . . . . . . . . . . . . . . . . . . . 42
7.2.1 In an emergency . . . . . . . . . . . . . . . . . . . . . . 42
8 Environmental protection/disposal . . . . . . . 43
9 Inspection and maintenance . . . . . . . . . . . . . 44
9.1 Preparing the boiler for inspection . . . . . . . 44
9.2 General work . . . . . . . . . . . . . . . . . . . . . . . . 44
9.3 Internal leak test . . . . . . . . . . . . . . . . . . . . . . 45
9.3.1 Determining the test volume . . . . . . . . . . . . 45
9.3.2 Carrying out a leak test . . . . . . . . . . . . . . . . 46
9.4 Checking the heating system operating
pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
9.5 Measuring the CO2 content . . . . . . . . . . . . 48
9.6 Checking the level of contamination of
burner and heat exchanger . . . . . . . . . . . . 49
9.6.1 Checking the level of contamination . . . . . 49
9.7 Cleaning the burner and heat exchanger . . 50
9.7.1 Removing the burner . . . . . . . . . . . . . . . . . . 50
9.7.2 Wet cleaning the heat exchanger . . . . . . . . 51
9.7.3 Cleaning the burner . . . . . . . . . . . . . . . . . . . 52
9.8 Refitting detached parts . . . . . . . . . . . . . . . 53
9.9 Checking for leaks during operation . . . . . 53
9.10 Checking the ionisation current . . . . . . . . . 53
9.11 Completing inspection and maintenance . 53
9.11.1 Fitting sections of the casing . . . . . . . . . . . 53
9.11.2 Confirming inspection and maintenance . 53
9.12 Inspection and maintenance reports . . . . . 54
10 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . 57
10.1 Recognising the operating state and
resetting faults . . . . . . . . . . . . . . . . . . . . . . . 57
10.2 Operating and fault displays . . . . . . . . . . . . 58
10.2.1Operating messages . . . . . . . . . . . . . . . . . . 58
10.2.2Fault displays . . . . . . . . . . . . . . . . . . . . . . . . 59
Logano plus GB312 - Subject to technical modifications.
11 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
11.1 Sensor curves . . . . . . . . . . . . . . . . . . . . . . . 69
11.2 Pressure drop on the heating water side . 70
11.3 MC10 connection diagram . . . . . . . . . . . . 71
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
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