A.O. Smith Cyclone BFC - 30 Installation And Service Manual page 19

is
Instruction manual BFC
If the available clearance is less than 100 cm, flexible magnesium anodes
may be ordered.
Note
When installing the appliance, be aware that any leakage from the tank
and/or connections can cause damage to the immediate environment or floors
below the level of the boiler room. If this is the case, the appliance should be
installed above a wastewater drain or in a suitable metal leak tray.
The leak tray must have an appropriate wastewater drain and must be at least
5cm deep with a length and width at least 5cm greater than the diameter of the
appliance.
Working clearances
IMD-0228 R1
19