Bosch US3 - Internal Electrical Wiring Diagram

6 | Information about the heater US
6 720 647 005 (2011/09)
2.6 Electrical diagram
Fig. 2 Internal wiring plan
DANGER: Risk of electric shock!
B Always switch off the electrical supply to
the unit before removing cover or
performing any maintenance and service.
Heating elements
Electrical
supply
Manual reset Thermal cut-out
Neon
Power selector
and Flow switch