Thermal Disinfection - Bosch Greenstar ZBR16-3A Operating Instructions Manual

34 | Thermal disinfection

5 Thermal disinfection
When using ZBR..-3A appliances with DHW tank it may be
necessary to disinfect the DHW tank and DHW system after longer
idle periods to prevent bacterial contamination, for example from
legionella bacteria. This step is typically not necessary if the
drinking water is chlorinated or ozonated.
Thermal disinfection can also be carried out
automatically and on a regular basis; see operating
instructions for the heating control unit included in
the scope of delivery.
Thermal disinfection covers the DHW system including the taps.
For solar DHW tanks, the solar portion of the tank is not covered.
DANGER: Risk of scalding!
Hot water can result in severe scalding.
B Carry out thermal disinfection only outside the
normal hours of use.
B The water in the tank will take a while to cool
down to the set DHW temperature as a result of
heat loss. Be aware that, after thermal
disinfection, the DHW may be hotter than the set
temperature.
B If the thermal disinfection feature is activated
have a DHW tempering valve installed.
6 720 644 013 (2011/02)