Maintenance; Specification; Dimensions And Connections; Wiring Diagram - STIEBEL ELTRON DHE 21 SL LABS Bedienungs Und Installationsanleitung Handbuch

INSTALLATIoN

Maintenance

13. Maintenance
WARNING Electrocution
Before any work on the appliance, disconnect all poles
from the power supply.
Draining the appliance
You can drain the appliance for maintenance work or to protect
it from frost.
CAUTION Scalding
Hot water may run out when draining the appliance.
f Close the shut-off valve in the cold water inlet line. f
f Open all draw-off valves. f
f Undo the water connections on the appliance. f
f Store the dismantled appliance in a room free from the risk f
of frost, as water residues remaining inside the appliance can
freeze and cause damage.

14. Specification

14.1 Dimensions and connections

225
140
b02
30
100
c06 c01
b02 Entry electrical cables I
c01 Cold water inlet
c06 DHW outlet
www.stiebel-eltron.com
≤ 20 105
35
114
Male thread G 1/2 A
Male thread G 1/2 A
Alternative connection options
b04
b04
b02 Entry electrical cables I
b03 Entry electrical cables II
b04 Entry electrical cables III

14.2 Wiring diagram

3/PE ~ 380-415 V
3 4
2
1
2
I II
1 I II
L1` L2` L3`
1
L
L
1 Power PCB
2 Bare wire heating system
3 High limit safety cut-out
4 Safety switch
b04
47
b03
b04
b02
30
165
b04
2 3/4
U
F
3
4
L
DHE SL LABS | 31