Technical Data; Special Accessories - Siemens DE1821415 Montage- Und Gebrauchsanleitung

Priority circuit for the combination with electrical
B
storage heaters:
For operation with a priority circuit, a special load shed-
ding relay BZ 45L21 (special accessory) is required.
Other existing load shedding relays, with the exception
of electronic load shedding relays, may malfunction.
The control electronics must be coded when operated
C
with a load shedding relay.

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
Energy efficiency class
Load profile
Annual energy consumption
Daily energy consumption
Sound power level
Hot water heating energy efficiency
* 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.
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.
10
en
Status display on the appliance
D
LED
Off
Lights up
Slow flash (1/s)
Fast flash (4/s)
DE1113415
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
A
XS
[kWh] 467
[kWh] 2.135
[dB] 15
[%] 39.5
Dimensions
E

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
Appliance status
Off
Ready
Appliance is heating
Desired water temperature is
not reached (water flow too
high for appliance rating).
DE1821415 DE2427415
DE4151821 DE4152427
18 24
21 27
400 400
32 40
4 6
9.9 13.2
11.6 13.9
5.4 7.2
6.3 7.6
2.6 2.6
0.025 (0.25) 0.025 (0.25)
≥ 1 300 ≥ 1 300
1.0 (10.0) 1.0 (10.0)
55 55
≤ 0.244 ≤ 0.244
A A
S S
484 481
2.235 2.220
15 15
38.1 38.3