STIEBEL ELTRON DHE 21 User Manual

INSTALLATION
Specication
102 | DHE www.stiebel-eltron.com
17.8 Data table
DHE 18/21/24 DHE 27
202656 202657
Electrical data
Rated voltage V 380 400 415 380 400
Rated output kW 16.2/19/21.7 18/21/24 19.4/22.6/25.8 24.4 27
Rated current A 27.6/29.5/33.3 29/31/35 30.1/32.2/36.3 37.1 39
Fuse protection A 32/32/35 32/32/35 32/32/40 40 40
Frequency Hz 50/60 50/60 50/- 50/- 50/-
Phases 3/PE 3/PE
Resistivity ρ15 ≥ Ω cm 900 900
Conductivity σ15 ≤ μS/cm 1111 1111
Max. mains impedance at 50Hz Ω 0.248 0.236 0.227 0.221 0.210
Connections
Water connection G 1/2 A G 1/2 A
Application limits
Max. permissible pressure MPa 1 1
Max. inlet temperature for reheating °C 55 55
Values
Max. inlet temperature (e.g. pasteurisation) °C 70 70
On l/min >2.5 >2.5
Flow rate at 28K l/min 9.2/10.7/12.3 at 400V 13.8 at 400V
Flow rate at 50K l/min 5.2/6.0/6.9 at 400V 7.7 at 400V
Pressure drop for flow rate at 50K (without flow limiter) MPa 0.06/0.08/0.1 0.13
Hydraulic data
Nominal capacity l 0.4 0.4

STIEBEL ELTRON DHE 21 Specifications

General

Type	Electronic instantaneous water heater
Rated output	21 kW
Protection class	IP25
Energy efficiency class	A
Temperature range	60 °C
Power supply voltage	400 V
Dimensions	105 mm