6 720 643 259 (2010/05)
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Explanation of symbols and safety information
US/CA
1.2 Safety instructions
B
To ensure proper function, follow these
instructions.
B
Install and start up the heating appliance and
all accessories according to the associated
instructions.
B
Only have this accessory installed by a trained
and certified installer.
B
Use this accessory exclusively in conjunction
with the controllers and heating appliances
listed. Follow the connection diagram!
B
Never connect this accessory to 120 VAC line
voltage.
B
Prior to mounting this accessory:
Isolate the power supply (120 VAC) from the
heating appliance and all other BUS users.
B
Electrical components must be installed by a
trained electrician and the installation must
meet the National Electric Code as well as all
applicable local codes and regulations.
B
Provide a dedicated circuit breaker for the
boiler and heating system rated at least 15 A.
B
All line voltage wiring must use at least
AWG14 size cables.
B
Never install this device in wet rooms.
B
Instruct customers about the functions and
operation of this accessory.
B
Risk of scalding during thermal disinfection:
Due to DHW temperatures occurring in excess
of 140 °F (60 °C), Bosch strongly advises to
install a DHW thermostatic mixing valve.
B
When there is a risk of frost, leave the boiler
switched on and follow the frost protection
information.
