Dhw Output; Application Areas / Conversion Table; Pressure Drop; Fault Conditions - STIEBEL ELTRON HDB-E 12 Si Operation And Installation
Electronically controlled instantaneous water heater
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INSTALLATION
Specification
15.3 DHW output
The DHW output is subject to the mains voltage, the appliance's
connected load and the cold water inlet temperature. The rated
voltage and rated output can be found on the type plate (see
chapter "Operation / Troubleshooting").
Connected load in kW
Rated voltage
380 V
400 V
415 V
10.1
11.0
12.0
12.2
13.2
13.5
13.6
14.2
14.5
15.0
16.2
16.2
16.3
18.0
19.0
19.4
21.0
21.7
22.6
23.5
24.0
24.4
25.8
Connected load in kW
Rated voltage
380 V
400 V
415 V
10.1
11.0
12.0
12.2
13.2
13.5
13.6
14.2
14.5
15.0
16.2
16.2
16.3
18.0
19.0
19.4
21.0
21.7
22.6
23.5
24.0
24.4
25.8
30
| HDB-E Si
38 °C DHW output in l/min.
Cold water inlet temperature
5 °C
10 °C
15 °C
4.4
5.2
6.3
4.8
5.6
6.8
5.2
6.1
7.5
5.3
6.2
7.6
5.7
6.7
8.2
5.8
6.9
8.4
5.9
6.9
8.4
6.1
7.2
8.8
6.3
7.4
9.0
6.5
7.7
9.3
7.0
8.3
10.1
7.1
8.3
10.1
7.8
9.2
11.2
8.2
9.7
11.8
8.4
9.9
12.0
9.1
10.7
13.0
9.4
11.1
13.5
9.8
11.5
14.0
10.2
12.0
14.6
10.4
12.2
14.9
10.6
12.4
15.2
11.2
13.2
16.0
50 °C DHW output in l/min.
Cold water inlet temperature
5 °C
10 °C
15 °C
3.2
3.6
4.1
3.5
3.9
4.5
3.8
4.3
4.9
3.9
4.4
5.0
4.2
4.7
5.4
4.3
4.8
5.5
4.3
4.9
5.6
4.5
5.1
5.8
4.6
5.2
5.9
4.8
5.4
6.1
5.1
5.8
6.6
5.2
5.8
6.7
5.7
6.4
7.3
6.0
6.8
7.8
6.2
6.9
7.9
6.7
7.5
8.6
6.9
7.8
8.9
7.2
8.1
9.2
7.5
8.4
9.6
7.6
8.6
9.8
7.7
8.7
10.0
8.2
9.2
10.5
15.4 Application areas / conversion table
Specific electrical resistance and specific electrical conductivity
(see chapter "Installation / Specification / Data table").
Standard specification
at 15 °C
Spec. re-
Spec. conduc-
tivity σ ≤
sistance
20 °C
ρ ≥
8.0
Ωcm
mS/m μS/cm Ωcm
8.7
1100
91
909
9.5
1200
83
833
9.7
10.5
15.5 Pressure drop
10.7
10.8
Pressure drop at taps at flow rate of 10 l/min
11.3
Mono-lever mixer tap. approx.
11.5
Thermostatic valve. approx.
11.9
Hand shower. approx.
12.9
12.9
Sizing the pipework
14.3
15.1
When calculating the size of the pipework. a pressure drop for the
15.4
appliance of 0.1 MPa is recommended.
16.7
17.2
15.6 Fault conditions
17.9
In case of faults. loads up to a maximum of 95 °C at a pressure of
18.7
19.0
1.2 MPa can occur temporarily in the installation.
19.4
20.5
20 °C
4.8
5.2
5.7
5.8
6.3
6.4
6.5
6.8
6.9
7.1
7.7
7.8
8.6
9.0
9.2
10.0
10.3
10.8
11.2
11.4
11.6
12.3
20 °C
25 °C
Spec. re-
Spec. conduc-
Spec. re-
tivity σ ≤
sistance
sistance
ρ ≥
ρ ≥
mS/m μS/cm Ωcm
970
103
1031
895
1070
93
935
985
MPa
MPa
MPa
www.stiebel-eltron.com
Spec. conduc-
tivity σ ≤
mS/m μS/cm
112
1117
102
1015
0.04 - 0.08
0.03 - 0.05
0.03 - 0.15
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Table of Contents
Troubleshooting
