STIEBEL ELTRON DHB 21 STi - Energy Consumption Details; Comprehensive Data Table

INSTALLATION
Specication
32 | DHB STi www.stiebel-eltron.com
16.8 Details on energy consumption
Product data complies with EU regulations relating to the Directive
on the ecodesign of energy-related products (ErP).
DHB 18 STi DHB 21 STi DHB 24 STi DHB 27 STi
227612 227613 227614 227615
Versions
Manufacturer STIEBEL ELTRON STIEBEL ELTRON STIEBEL ELTRON STIEBEL ELTRON
Default temperature setting °C 55 55 55 55
Special information on measuring efficiency None None None None
Output data
Load profile S S S S
Energy data
Energy efficiency category A A A A
Annual power consumption kWh 480 477 475 475
Energy efficiency % 39 39 39 39
Sound data
Sound power level dB(A) 15 15 15 15
16.9 Data table
DHB 18 STi DHB 21 STi DHB 24 STi DHB 27 STi
227612 227613 227614 227615
Electrical details
Rated voltage V 380 400 415 380 400 415 380 400 415 380 400 415
Rated output kW 16.2 18 19.4 19 21 22.6 21.7 24 25.8 23.5 26 28
Rated current A 24.7 26 27 29.5 31 32.2 33.3 35 36.3 35.6 37.7 38.9
Fuse A 25 25 32 32 32 32 35 35 40 35 40 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/- 50/- 50/-
Max. mains impedance at 50Hz Ω 0.379 0.360 0.347 0.325 0.308 0.297 0.284 0.270 0.260 0.254 0.241
Specific resistance ρ
15
≥ (at ϑcold ≤35 °C) Ω cm ≥1100 ≥1100 ≥1200 ≥1100 ≥1100 ≥1200 ≥1100 ≥1100 ≥1200 ≥1100 ≥1100 ≥1200
Specific conductivity σ
15
≤ (at ϑcold ≤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 > 3.0 > 3.0 > 3.0 > 3.0
Flow rate for pressure drop l/min 5.2 6.0 6.9 7.7
Pressure drop at flow rate MPa 0.08 (0.06 without
DMB)
0.1 (0.08 without DMB) 0.13 (0.1 without DMB) 0.16 (0.12 without
DMB)
Flow rate limit at l/min 7.5 7.5 8.5 8.5
DHW delivery l/min 9.2 10.7 12.3 13.8
Δϑ at DHW delivery K 28 28 28 28
Hydraulic data
Rated capacity l 0.4 0.4 0.4 0.4
Versions
Temperature adjustment °C Approx. 35, 45, 55 Approx. 35, 45, 55 Approx. 35, 45, 55 Approx. 35, 45, 55
Protection class 1 1 1 1
Insulation block Plastic Plastic Plastic Plastic
Heating system heat generator 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 mm 470 470 470 470
Width mm 225 225 225 225
Depth mm 110 110 110 110
Weights
Weight kg 3.6 3.6 3.6 3.6