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INsTALLATIoN
Maintenance
16. Maintenance
WARNING Electrocution
Before any work on the appliance, disconnect all poles
from the power supply.
This appliance contains capacitors which are discharged
when disconnected from the power supply. The capacitor
discharge voltage may briefly exceed 60 V DC.
Draining the appliance
The appliance can be drained for maintenance work.
WARNING Burns
Hot water may escape when you drain the appliance.
f Close the 3-way ball shut-off valve or the shut-off valve in the
f
cold water inlet line.
f Open all draw-off valves.
f
f Undo the pipe connections from 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.
Cleaning the strainer
If dirty, clean the strainer in the threaded cold water fitting. Close
the 3-way ball shut-off valve or the shut-off valve in the cold water
inlet line before removing, cleaning and refitting the strainer.
17. Specification
17.1 Dimensions and connections
225
140
b02
30
100
c06
b02 Entry electrical cables I
c01
Cold water inlet
c06
DHW outlet
www.stiebel-eltron.com
≤ 20
105
35
116
c01
DEL Plus
On unfinished walls
Male thread
Male thread
Alternative connection options
b03
b04
b02 Entry electrical cables I
b03 Entry electrical cables II
b04 Entry electrical cables III
17.2 Wiring diagram
3/PE ~ 380-415 V
2
1
1 Power PCB with integral safety switch
2 Bare wire heating system
3 High limit safety cut-out
4 Mains terminal
Priority control with LR 1-A
2
1
G 1/2 A
1 Control cable to the contactor of the second appliance (e.g.
G 1/2 A
electric storage heater)
2 Control contact drops out when switching the instantaneous
water heater on.
b04
20
b02
b04
30
165
b04
b04
On unfinished walls
On unfinished walls
On finished walls
4
DEL Plus |
DEL Plus
3
18
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Troubleshooting
