Siemens DE2427415: Special accessories Operation with prewarmed water (solar heated)

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en

Special accessories

Pipe kit 

■

BZ 45U20

: for use of the continuous-flow heater 

as an under sink appliance

Priority switch (load shedding relay) 

■

BZ 45L20

: 

for operation with a priority circuit

Mounting kit 

■

BZ 45K23

: for surface mount installation

Thermostatic premixer 

■

BZ 45T20

: for installation in the 

domestic plumbing when using preheated water

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 exceeds a tem-

perature 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. There-

fore, the residential plumbing must be equipped with a ther-

mostatic premixer (e. g. special accessory 

BZ 45T20

) that will 

limit the cold water supply temperature to a max. of 55 °C by 

appropriately mixing in cold water.

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