Siemens DE1113407, Installation Instructions Manual

9

en

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. 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.

VIII.

Dimensions

Special accessories

■

Pipe kit BZ 45U20 for use of the appliance 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

■

Only for appliances that are suitable for solar heating 
systems: 
Thermostatic premixer BZ 45T20: for installation in the 
domestic plumbing when using preheated water

Environmentally-friendly disposal

This appliance is labelled in accordance with Euro-
pean Directive 2012/19/EU concerning used elec-
trical and electronic appliances (waste electrical 
and electronic equipment – WEEE). 
The guideline determines the framework for the 
return and recycling of used appliances as appli-
cable throughout the EU.

Please ask your specialist retailer about current 
disposal facilities.

Subject to change without notice.

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–
–
–

DE1518527
–
–
–

–
DE1821417
DE4161821
DE5261821

DE2124527
–
–
–

DE2427527
–
DE4162427
DE5262427

Rated output

[kW]

15/18

18/21

21/24

24/27

Rated voltage

[V]

400

400

400

400

Fuse protection

[A]

25/32

32

32/40

40

Minimum conductor cross-section *

[mm

2

]

2.5/4

4

4/6

6

Warm water flow at rated output 
with temperature increase from
12 °C to 38 °C (without flow-rate limiter)
12 °C to 38 °C (with flow-rate limiter)
12 °C to 60 °C

[l/min]
[l/min]
[l/min]

8.1/9.8
6.5
4.4/5.3

9.8/11.6
7.6
5.3/6.2

11.6/13.0
8.7
6.2/7.1

13.0/14.6
9.3
7.1/7.9

Start-up flow

[l/min]

2.5

2.5

2.5

2.5

Start-up flow pressure **

[MPa (bar)]

0.009 
(0.09)

0.009 
(0.09)

0.009 
(0.09)

0.009 
(0.09)

Application area in water 
specific electric resistance at 15 °C

[Ωcm]

≥ 1 300

≥ 1 300

≥ 1 300

≥ 1 300

Rated pressure

[MPa (bar)]

1.0 (10)

1.0 (10)

1.0 (10)

1.0 (10)

Maximum permissible supply temperature

[°C]

60

60

60

60

Maximum mains impedance at connection point

[Ω]

0.067/0.104 0.067/0.104 0.067/0.104 0.067/0.104

Energy efficiency class

A

A

A

A

Load profile

S

S

S

S

Annual energy consumption

[kWh]

478

479

479

479

Daily energy consumption

[kWh]

2.199

2.203

2.204

2.207

Sound power level

[dB]

15

15

15

15

Hot water heating energy efficiency

[%]

38.6

38.5

38.5

38.5

* Larger cable cross-sections may be required depending on the connection configuration.
** The pressure loss on the mixer must also be added.