Bosch Condens 7000 FP Installation And Service Instructions Manual page 3

11.8 Cleaning the burner and heat exchanger . . . . . . . . . . .43
11.8.1 Clean the burner. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
11.8.2 Clean the heat exchanger. . . . . . . . . . . . . . . . . . . . . . . .43
11.9 Inspecting the burner electrodes . . . . . . . . . . . . . . . . .46
11.10 Testing the differential pressure switch . . . . . . . . . . . .47
11.11 Replacing components. . . . . . . . . . . . . . . . . . . . . . . . . .47
11.11.1 Removing the air/gas ratio control valve . . . . . . . . . . .47
11.11.2 Changing the gas filter . . . . . . . . . . . . . . . . . . . . . . . . .47
11.11.3 Removing the fan. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
11.11.4 Replacing components according to the service
life . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
11.12 Refitting detached parts . . . . . . . . . . . . . . . . . . . . . . . .49
11.12.1 Refitting parts removed . . . . . . . . . . . . . . . . . . . . . . . .49
11.12.2 Fitting the fan. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
11.12.3 Fitting the ventilation air collector and air/gas
ratio control valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
11.12.4 Installing the burner . . . . . . . . . . . . . . . . . . . . . . . . . . .50
11.12.5 Fitting the gas line to the gas valve . . . . . . . . . . . . . . . .51
11.12.6 Installing the ventilation air unit . . . . . . . . . . . . . . . . . .51
11.13 Check for leaks during operation. . . . . . . . . . . . . . . . . .51
11.14 Checking the ionisation current. . . . . . . . . . . . . . . . . . .51
11.15 Completing inspection and maintenance . . . . . . . . . . .52
11.15.1 Removing measuring devices . . . . . . . . . . . . . . . . . . . .52
11.15.2 Installing casing parts . . . . . . . . . . . . . . . . . . . . . . . . . .52
11.15.3 Checking the gas/air ratio. . . . . . . . . . . . . . . . . . . . . . .52
11.15.4 Confirming inspection and maintenance . . . . . . . . . . .52
12 Emergency operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
12.1 Resetting faults in emergency mode . . . . . . . . . . . . . . .52
13 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
13.1 Recognising the operating condition and clearing
faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
13.2 Resetting pressure monitor . . . . . . . . . . . . . . . . . . . . . .53
13.3 Calling up the fault history . . . . . . . . . . . . . . . . . . . . . . .54
14 Operating and fault displays. . . . . . . . . . . . . . . . . . . . . . . . . . .55
14.1 Control unit status indicators. . . . . . . . . . . . . . . . . . . . .55
14.2 Service displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
14.3 Control unit fault displays . . . . . . . . . . . . . . . . . . . . . . .56
14.4 Status indicator of the burner control unit.. . . . . . . . . .64
15 Check temperature switch . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
16 Testing the differential pressure switch . . . . . . . . . . . . . . . . .65
16.1 Test the continuity of the differential pressure
switch at negative pressure . . . . . . . . . . . . . . . . . . . . . .65
16.2 Testing the differential pressure switch for
continuity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
17 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
17.1 Technical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
17.2 Sensor curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
17.2.1 Temperature sensor at digital burner control unit . . . .69
17.3 Hydraulic resistance. . . . . . . . . . . . . . . . . . . . . . . . . . . .70
17.4 Connection diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . .70
17.4.1 Control unit connection diagram . . . . . . . . . . . . . . . . . .70
17.4.2 Burner control unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70
17.4.3 Diagrammatic representation of supply air/flue
gas monitor and gas tightness . . . . . . . . . . . . . . . . . . . .71
Condens 7000 FP - 6721846699 (2022/12)
17.5 Conversion of vol.% CO2 into vol.% O2 for burner
setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
17.6 System commissioning report. . . . . . . . . . . . . . . . . . . . 72
17.7 Inspection and maintenance protocols. . . . . . . . . . . . . 73
17.8 Data Protection Notice. . . . . . . . . . . . . . . . . . . . . . . . . . 77
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