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INSTALLATIoN
Specification
Priority control with LR 1-A
2
1
1 Control cable to the contactor of the second appliance (elec-
tric storage heater for example).
2 Control contact opens when switching the instantaneous
water heater on.
16.3 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
38 °C DHw output in l/min.
Rated voltage
Cold water inlet temperature
380 V
400 V
415 V
16.2
16.3
18.0
19.0
19.4
21.0
21.7
22.6
23.5
24.0
24.4
25.8
26.0
27.0
28.0
Connected load in kw
50 °C DHw output in l/min.
Rated voltage
Cold water inlet temperature
380 V
400 V
415 V
16.2
16.3
18.0
19.0
19.4
21.0
21.7
22.6
23.5
24.0
24.4
25.8
26.0
27.0
28.0
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5 °C
10 °C
15 °C
20 °C
7.0
8.3
10.1
12.9
7.1
8.3
10.1
12.9
7.8
9.2
11.2
14.3
8.2
9.7
11.8
15.1
8.4
9.9
12.0
15.4
9.1
10.7
13.0
16.7
9.4
11.1
13.5
17.2
9.8
11.5
14.0
17.9
10.2
12.0
14.6
18.7
10.4
12.2
14.9
19.0
10.6
12.4
15.2
19.4
11.2
13.2
16.0
20.5
11.3
13.3
16.1
20.6
11.7
13.8
16.8
21.4
12.1
14.3
17.4
22.2
5 °C
10 °C
15 °C
20 °C
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
10.0
6.9
7.8
8.9
10.3
7.2
8.1
9.2
10.8
7.5
8.4
9.6
11.2
7.6
8.6
9.8
11.4
7.7
8.7
10.0
11.6
8.2
9.2
10.5
12.3
8.3
9.3
10.6
12.4
8.6
9.6
11.0
12.9
8.9
10.0
11.4
13.3
16.4 Application areas / conversion table
Specific electrical resistance and specific electrical conductivity
(see chapter "Installation / Data table").
Standard specifica-
tion at 15 °C
Resist-
Conductivity
σ ≤
ance ρ ≥
Ωcm
mS/m μS/cm Ωcm
1100
91
909
1200
83
833
16.5 Pressure drop
Taps
Tap pressure drop at a flow rate of 10 l/min
Mono lever mixer tap, approx.
Thermostatic valve, approx.
Shower head, approx.
Sizing the pipework
When calculating the size of the pipework, an appliance pressure
drop of 0.1 MPa is recommended.
16.6 Fault conditions
In case of faults, loads up to a maximum of 95 °C at a pressure of
1.2 MPa can occur temporarily in the installation.
16.7 Country-specific approvals and certifications:
Germany
A general test certificate as verification of suitability regarding
noise emissions has been issued for this appliance, based on the
State Building Regulations [Germany].
DIN 4109
7.7
PA-IX 6816/I
7.8
8.6
9.0
9.2
20 °C
25 °C
Resist-
Conductivity
Resist-
σ ≤
ance ρ ≥
ance ρ ≥
mS/m μS/cm Ωcm
970
103
1031
895
1070
93
935
985
MPa
MPa
MPa
DHB STi |
Conductivity
σ ≤
mS/m μS/cm
112
1117
102
1015
0.04 - 0.08
0.03 - 0.05
0.03 - 0.15
31
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