Safety Instructions - Bosch FB 100 Installation And Operating Instructions Manual

8 | Explanation of symbols and safety information
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.
6 720 643 259 (2010/05)
US/CA