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14 | English
9 001 166 628 | (11.1.16) Robert Bosch Hausgeräte GmbH
Solar heated
Only for appliances that are suitable for solar heating
systems:
The appliance can only heat prewarmed water to a max.
of 60 °C. If the cold water supply exceeds a temperature
of 55 °C, the water will not be warmed any further.
Important: The cold water supply temperature must not
be higher than 55 °C!
If the cold water supply exceeds a temperature of 60 °C,
a circuit breaker will trigger and shut the appliance off.
Therefore, the residential plumbing must be equipped
with a thermostatic premixer (e. g. special accessory
BZ 45T20) that will limit the cold water supply tem-
perature to a max. of 55 °C by appropriately mixing in
cold water.
Dimensions (Figure VIII)
Special accessories
X
Pipe kit BZ 45U20 for use of the appliance as an
under-sink appliance
X
Priority switch (load shedding relay) BZ 45L21:
for operation with a priority circuit
X
Mounting kit BZ 45K23: for surface mount installation
X
Only for appliances that are suitable for solar heat-
ing systems:
Thermostatic premixer BZ 45T20: for installation in
the domestic plumbing when using preheated water
Operating instructions
Please read and observe the detailed safety instruc-
tions at the start of these instructions!
X
Important: The appliance may never be exposed to
frost!
Risk of electric shock!
Switch off the mains voltage supply immediately
if a fault occurs.
X
Immediately shut off the cold water supply to the
appliance should it leak.
Getting to know your appliance
This appliance is an electronically-regulated, pressurized
continuous-flow heater for decentrally supplying hot
water.
The electronic continuous-flow heater heats the water
as it flows through the appliance. One or more taps can
be supplied with warm water.
Operating elements
2
1
1 Rotary selector switch
2 Status display
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