Owner's manual

30 | HDB-E Si www.stiebel-eltron.com
INSTALLATION

15.4 Applications / Conversion table
Specific electrical resistance and specific electrical
conductivity, see “Data table”.
Standard
  
Spec.
Resistance
ρ ≥
Spec.
Conductivity
σ ≤
Spec.
Resistance
ρ ≥
Spec.
Conductivity
σ ≤
Spec.
Resistance
ρ ≥
Spec.
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
1000 100 1000 890 112 1124 815 123 1227
1100 91 909 970 103 1031 895 112 1117
1200 83 833 1070 93 935 985 102 1015
1300 77 769 1175 85 851 1072 93 933
15.5 Pressure drop

Mono-lever mixer tap. approx. MPa 0.04 - 0.08
Thermostatic valve. approx. MPa 0.03 - 0.05
Hand shower. approx. MPa 0.03 - 0.15
Sizing the pipework
When calculating the size of the pipework. a pressure drop for the
appliance of 0.1MPa is recommended.
15.6 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.
15.7 Data table
HDB-E 12 Si HDB-E 18 Si HDB-E 21 Si HDB-E 24 Si
232003 232004 232005 232006
Electrical details
Rated voltage V 380 400 415 380 400 415 380 400 415 380 400 415
Rated output kW 9.7 10.7 11.5 16.2 18 19.4 19 21 22.6 21.7 24 25.8
Rated current A 14.4 15.5 16 24.7 26 27 29.5 31 32.2 33.3 35 36.3
Fuse A 16 16 16 25 25 32 32 32 32 35 35 40
Phases 3/PE 3/PE 3/PE 3/PE
Frequency Hz 50/60 50/60 50/- 50/60 50/60 50/- 50/60 50/60 50/- 50/60 50/60 50/-
Max. mains impedance at 50Hz Ω 0.47 0.45 0.43 0.41 0.39 0.37 0.36 0.34 0.33
Max. mains impedance at 60Hz Ω 0.39 0.37 0.34 0.32 0.29 0.28
Specific resistance ρ
15
≥ (at ϕcold ≤35°C) Ω cm ≥1100 ≥1100 ≥1200 ≥1100 ≥1100 ≥1200 ≥1100 ≥1100 ≥1200 ≥1100 ≥1100 ≥1200
Specific conductivity σ
15
≤ (at ϕcold ≤35°C) μS/cm ≤910 ≤910 ≤830 ≤910 ≤910 ≤830 ≤910 ≤910 ≤830 ≤910 ≤910 ≤830
Connections
Water connection G 1/2 A G 1/2 A G 1/2 A G 1/2 A
Application limits
Max. permissible pressure MPa 1 1 1 1
Values
Max. permissible inlet temperature °C 35 35 35 35
ON l/min >2.3 >2.3 >2.3 >2.3
Flow rate for pressure drop l/min 3.1 5.2 6.0 6.9
Pressure drop at flow rate MPa 0.07 (0.02 without
DMB)
0.08 (0.06 without
DMB)
0.10 (0.08 without
DMB)
0.13 (0.1 without
DMB)
Flow rate limit at l/min 4 7.5 7.5 8.5
DHW delivery l/min 5.5 9.0 10.5 12
Δϑ if presented K 28 28 28 28
Hydraulic data
Rated capacity l 0.4 0.4 0.4 0.4
Versions
Temperature adjustment °C 55 55 55 55
Protection class 1 1 1 1
Insulation block Plastic Plastic Plastic Plastic
Heating system Bare wire Bare wire Bare wire Bare wire
Cap and back panel Plastic Plastic Plastic Plastic
Colour white white white white
IP-Rating IP25 IP25 IP25 IP25
Dimensions
Height/Width/Depth mm 470 225 117 470 225 117 470 225 117 470 225 117
Weights
Weight kg 3.6 3.6 3.6 3.6