iNSTALLATiON
Specification
EN
GL
ISH
www.stiebel-eltron.com
DEL Plus AU |
17
17.2 Wiring diagram
3/PE ~ 380-415 V
D
00000
53
42
4
1
3
4
2
1 Power PCB with integral safety switch
2 Bare wire heating system
3 High limit safety cut-out
4 Mains terminal
17.3 DHW output
The DHW output is subject to the connected power supply, the
appliance's connected load and the cold water inlet temperature.
The rated voltage and rated output can be found on the type plate.
Connected load in kW
38 °C DHW output in l/min
rated voltage
Cold water inlet temperature
380 V
400 V
415 V
5 °C
10 °C
15 °C
20 °C
DEL 13
Plus AU
12.2
5.2
6.1
7.5
9.5
13.5
5.8
6.9
8.4
10.7
14.5
6.3
7.4
9.0
11.5
DEL 18
Plus AU
16.2
7.0
8.3
10.1
12.9
18
7.8
9.2
11.2
14.3
19.4
8.4
9.9
12.0
15.4
DEL 27
Plus AU
23.5
10.2
12.0
14.6
18.7
26
11.3
13.3
16.1
20.6
28
12.1
14.3
17.4
22.2
Connected load in kW
50 °C DHW output in l/min
rated voltage
Cold water inlet temperature
380 V
400 V
415 V
5 °C
10 °C
15 °C
20 °C
DEL 13
Plus AU
12.2
3.8
4.3
4.9
5.7
13.5
4.3
4.8
5.5
6.4
14.5
4.6
5.2
5.9
6.9
DEL 18
Plus AU
16.2
5.1
5.8
6.6
7.7
18
5.7
6.4
7.3
8.6
19.4
6.2
6.9
7.9
9.2
DEL 27
Plus AU
23.5
7.5
8.4
9.6
11.2
26
8.3
9.3
10.6
12.4
28
8.9
10.0
11.4
13.3
17.4 Application areas / Conversion table
Specific electrical resistance and specific electrical conductivity
Standard specifica-
tion at 15 °C
20 °C
25 °C
Resis-
tivity
ρ ≥
Conductivity
σ
≤
Resis-
tivity
ρ ≥
Conductivity
σ
≤
Resis-
tivity
ρ ≥
Conductivity
σ
≤
Ωcm
mS/m μS/cm
Ωcm
mS/m μS/cm
Ωcm
mS/m
μS/cm
900
111
1111
800
125
1250
735
136
1361
17.5 Pressure drop
Taps/valves
Tap pressure drop at a flow rate of 10 l/min
Mono lever mixer tap, approx.
MPa
0.04 - 0.08
Thermostatic valve, approx.
MPa
0.03 - 0.05
Shower head, approx.
MPa
0.03 - 0.15
Sizing the pipework
When calculating the size of the pipework, an appliance pressure
drop of 0.1 MPa is recommended.
17.6 Fault conditions
In the event of a fault, loads up to 80 °C at a pressure of 1.0 MPa
can occur very briefly in the installation.