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

Page: 86 / 126

To create a heat demand, you can temporarily raise the set point using [ ] to e.g.
70ºC.
Confirm with .[ENTER].
After adjusting for the CO
2
value (see section 7.9.4), you must use [ ] to restore
the set point to its original value.
Press [
] twice to return to the MENU menu via the SERVICE OPERATION menu.
9.2.7 Setting legionella prevention
To prevent infection with legionella bacteria, the water heater heats the water to 65 °C
once per week, for 1 hour. This period is adjustable. By default, this period is set to
Monday from 02:00 to 03:00 hours.
9.2.7.1 Switching legionella prevention on and off
To switch legionella prevention on or off, select:
[ ]: ANTI LEGIONELLA
Select NO to switch legionella prevention off.
Select YES to switch legionella prevention on. The following screen appears:
Select START to activate the period currently displayed.
The following display appears. This display indicates that legionella prevention is
switched on.
9.2.7.2 Changing legionella prevention start time
If you wish to change the start time, select:
[ ]: ANTI LEGIONELLA | YES | Change
The following display appears.
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86 Installation, Maintenance and Service part