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Technical data
Rated output
Rated voltage
Fuse protection
Minimum conductor cross-section *
Warm water flow at rated output
with temperature increase from
12 °C to 38 °C
12 °C to 60 °C
Start-up flow
Start-up flow pressure **
Application area in water
specific electric resistance at 15 °C
Rated pressure
Maximum permissible supply temperature
Maximum mains impedance at connection
point
* Larger cable cross-sections may be required depending on the connection configuration.
** The pressure loss on the mixer must also be added.
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.
236
20
100
en
DE 1113415
11.0
[kW]
13.0
[V]
400
[A]
16 / 20
[mm
2
]
4
6.0
[l/min]
7.1
3.8
[l/min]
3.3
[l/min]
2.6
[MPa (bar)]
0.025 (0.25)
[Ωcm]
≥ 1 300
[MPa (bar)]
1.0 (10.0)
[°C]
55
[Ω]
≤ 0.244
99
G
1 2
A
115
DE 1821415
DE 4151821
18
21
400
32
4
9.9
11.6
5.4
6.3
2.6
0.025 (0.25)
≥ 1 300
1.0 (10.0)
55
≤ 0.244
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.
Special accessories
Pipe kit BZ 45U20: for use of the continuous-flow heater
as an under sink appliance
Priority switch (load shedding relay) BZ 45L21:
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
DE 2427415
DE 4152427
24
27
400
40
6
13.2
13.9
7.2
7.6
2.6
0.025 (0.25)
≥ 1 300
1.0 (10.0)
55
≤ 0.244
11
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