Special Accessories - Bosch RDE 1821415 Installation And Operating Instructions Manual

Operation with prewarmed water (solar heated)
The continuous-flow heater can only heat prewarmed
water to a max. of 60 °C. If the cold water supply ex-
ceeds a temperature of 55 °C, the water will not be
warmed any further.
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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 tempera-
ture to a max. of 55 °C by appropriately mixing in cold
water.

Special accessories

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Pipe kit BZ 45U20: for use of the continuous-flow
heater as an under sink appliance
w
Priority switch (load shedding relay)
for operation with a priority circuit
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Mounting kit BZ 45K23: for surface mount installation
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Thermostatic premixer
the domestic plumbing when using preheated water
English | 11
BZ 45L20:
BZ 45T20: for installation in
9 000 813 417 | (17.9.12)