1.2
Safety instructions
B These instructions must be observed to
ensure correct operation.
B Install and commission the heating appliance
and all accessories in accordance with the
instructions provided.
B This accessory must only be installed by
suitably qualified installers.
B Only use these accessories in conjunction
with the heating appliances listed. Follow the
connection diagram!
B Never connect this accessory to the 220 to
240 V mains.
B Prior to the installation of this accessory:
Isolate the heating appliance and all other
BUS subscribers from the power supply
(220 to 240 V AC).
B For wall mounting: never install this accessory
in wet areas.
B Instruct customers about the functions and
operation of the accessory.
B Risk of scalding during thermal disinfection:
Supervise short periods of operation with
water temperatures over 60 °C or fit a
thermostatic DHW mixer.
B When there is a risk of frost, leave the heating
appliance switched on and follow the frost
protection information.
Risk of damage due to operator error.
Incorrect operation can cause injury and/or
material damage.
B Ensure children do not operate this accessory
unsupervised or play with it.
B Make sure that only people who are capable of
operating this accessory properly have access
to it.
Key to symbols and safety instructions | 7
6 720 800 817 (2012/02)