A.O. Smith BFC-120, Installation, User And Service Manual

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9.2.4 Display the selected water heater....................................... 84
9.2.5 Setting the service interval................................................ 85
9.2.6 Service mode...................................................................85
9.2.7 Setting legionella prevention.............................................. 86
9.2.8 Solar heating system configuration..................................... 87
9.2.9 Setting the central heating configuration..............................89
10 Maintenance.............................................................................. 91
10.1
Preparation......................................................................91
10.2 Water-side maintenance....................................................92
10.2.1 Descale the tank.............................................................. 92
10.2.2 Clean the condensate drain................................................93
10.3
Gas-side maintenance....................................................... 93
10.3.1 Clean the burner.............................................................. 93
10.3.2 Clean the heat exchanger.................................................. 93
10.4
Solar collector maintenance............................................... 94
10.5 Finalization...................................................................... 94
11 Troubleshooting........................................................................ 95
11.1
Errors and warnings..........................................................95
11.1.1 General errors..................................................................96
11.1.2 Displayed errors............................................................... 97
11.1.3 Warnings....................................................................... 102
12 Appendices.............................................................................. 105
12.1
Technical details............................................................. 105
12.2 Dimensions.................................................................... 109
12.3 Gas details.....................................................................113
12.4 Week program card.........................................................115
12.5 Electrical wiring diagram..................................................117
12.6 Electrical wiring diagram solar heating system.................... 119
12.7 Menu structure............................................................... 120
12.8 Declaration of conformity.................................................121
12.9 Warranty....................................................................... 122
Index...................................................................................... 125
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