STIEBEL ELTRON HDB-E 11/13 Trend - 16 Maintenance; 17 Specification; Dimensions and Connections; Wiring Diagram

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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.
> Close the 3- way ball shut-off valve or the shut-off valve in the
cold water supply line.
> Open all draw- off valves.
> Undo the pipe connections from the appliance.
> Store the dismantled appliance free from the risk of frost, as
water residues remaining inside the appliance can freeze and
cause damage.
Clean the strainer
If the strainer in the threaded cold water fitting is dirty, clean it.
Close the 3- way ball shut-off valve or the shut-off valve in the
cold water supply line before removing, cleaning and refitting
the strainer.
17. Specification
17.1 Dimensions and connections
HDB-E Trend
b02 Entry electrical cables I
c01 Cold water inlet
Flush- mounted
Male thread G 1/2
c06 DHW outlet Male thread G 1/2
Alternative connection options
HDB-E Trend
b02 Entry electrical cables I
b03 Entry electrical cables II
b04 Entry electrical cables III
Flush- mounted
Flush- mounted
Surface- mounted
17.2 Wiring diagram
3/PE - 380-400V
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
1 Control cable to the contactor of the second appliance
(e.g. electric storage heater)
2 Control contact drops out when switching the instantaneous
water heater on
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