Increasing The Temperature; Application Areas - STIEBEL ELTRON DHM 3 Operation And Installation

InstallatIon
specification

15.3 increasing the temperature

At 230 V / 400 V, the following water temperature increases occur:
45,0
42,5
40,0
37,5
35,0
32,5
30,0
27,5
25,0
22,5
20,0
1,4 1,8 2,2
X Flow rate in l/min
Y Temperature increase in K
1 3.5 kW - 230 V
2 4.4 kW - 230 V
3 5.7 kW - 230 V
4 6.5 kW - 400 V
example dHm 3 with 3.5 kW
Flow rate
Increasing the temperature
Cold water supply temperature
Maximum possible outlet temperature
44 | DHM
2,6 3,0 3,4
l/min
K
°C
°C
Note
An outlet temperature of 50 °C can be achieved with the
lowest possible flow rate and the following cold water
inlet temperatures:
4
- DHM 3 > 18 °C
- DHM 4 > 21 °C
3
- DHM 6 > 22 °C
2
- DHM 7 > 15 °C
1

15.4 application areas

for the specific electrical resistance and specific electrical
conductivity, see "data table".
standard specifica-
tion at 15 °C
Spec. Spec. conductiv-
ity σ ≤
resist-
ance
ρ ≥
Ωcm mS/m μS/cm
900 111 1111
1000 100 1000
1100 91 909
2.0
1200 83 833
25
1300 77 769
12
37
20 °C 25 °C
Spec. Spec. conductiv- Spec.
ity σ ≤
resist- resist-
ance ance
ρ ≥ ρ ≥
Ωcm mS/m μS/cm Ωcm
800 125 1250 735
890 112 1124 815
970 103 1031 895
1070 93 935 985
1175 85 851 1072
www.stiebel-eltron.com
Spec. conductiv-
ity σ ≤
mS/m μS/cm
136 1361
123 1227
112 1117
102 1015
93 933