8
Symbols and safety precautions
6 720 617 763 (2008/09)
1.2 Safety precautions
B
These instructions must be observed to
ensure correct operation.
B
Install and commission the boiler and all
accessories in accordance with the installa-
tion instructions.
B
This accessory must only be installed by suita-
bly qualified installers.
B
Only use these accessories in conjunction
with the heating appliances listed. Follow the
connection diagram!
B
Do not connect this accessory to the 230 V
mains electricity supply.
B
Before installing these accessories:
Isolate the voltage supply (230 V AC) to the
heating appliance and all additional devices
on the bus.
B
Never install this accessory in wet areas.
B
Instruct customers about the functions and
operation of accessories.
B
Risk of scalding during thermal disinfection:
Supervise short periods of boiler operation
with water temperatures over 60 °C or fit a
thermostatic mixer unit.
B
When there is a risk of frost, leave the boiler
switched on and follow the frost protection
information.
Risk of damage due to operator error.
Incorrect operation can cause personal injury
and/or damage to property.
B
Ensure children do not operate or interfere
with this accessory.
B
Make sure that only people who are capable of
operating this accessory properly have access
to it. This appliance must only be operated by
a responsible adult who has been instructed
in, understands and is aware of it's operating
conditions and effects.
