INSTALLATION
Commissioning
www.stiebeleltronamericas.com DCE Premium| 15
f Push the power cable through the cable grommet.
f Connect the power cable to the wiring block (see section
17.2, “Wiring diagram”, pg. 21).
11. Commissioning
11.1 Internal anti-scalding protection via jumper
slot
For increased safety, the qualified contractor can set an internal
anti-scalding temperature limit via the “T
max
” jumper. The an-
ti-scalding protection feature limits the maximum output tem-
perature of the water heater. This feature overrides the tempera-
ture adjustment display on the front cover (both the temperature
selection and temperature limit via software functions). A user
can still make temperature adjustments below the anti-scalding
limit using the display, however, any temperature selected that
is higher than the Tmax limit set will be ignored, and the output
temperature will be limited to the T
max
value.
43°C | 109°F
50°C | 122°F
55°C | 131°F
60°C | 140°F
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Jumper position Description
43°C | 109°F Forexample in nurseries, hospitals, etc.
50°C | 122°F Typical DHW
55°C | 131°F Max. for shower operation
60°C | 140°F Factory setting (full temperature range)
No jumper Limit 43°C | 109°F
f Install the jumper in the required position on the “T
max
” pin
strip.
CAUTION Burns
If the water supplied to the appliance is preheated, the
internal anti-scalding protection and the user-adjustable
temperature limit may be exceeded.
In such cases, limit the temperature with an upstream
central thermostatic valve.
11.2 Changing power output via the jumper slot;
only for models with selectable power output
DCE 10 and 15 Premium feature selectable power output. If you
select a value other than the factory default setting, you will need
to reposition the jumper.
1
2
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f Install the jumper in the required position on the “Pmax” pin
strip.
Jumper position Power output
DCE 10 Premium
Power output
DCE 15 Premium
1 [low] @ 208V 5.4kW 9.0kW
@ 220V 6.0kW 10.0kW
@ 240V 7.2kW 12.0kW
2 [high]
@ 208V 7.2kW 10.7kW
factory default
@ 220V 8.0kW 12.0kW
@ 240V 9.6kW 14.4kW
No jumper
@ 208V 5.4kW 9.0kW
[low]
@ 220V 6.0kW
10.0kW
@ 240V 7.2kW 12.0kW
f Mark the selected power output on the type plate. Use a ball-
point pen to do this.
11.3 Initial start-up
Note
During initial start-up, you MUST engage the AE3 safe-
ty switch by depressing the white reset button before
supplying power to the water heater. The unit will NOT
operate until the safety switch has been engaged.
≥ 3 min.
1
2
D0000053277
f Open and close all connected draw-off valves at least five
times total. Let water run for at least three minutes, until all
air has been purged from the pipework and the water heater.
f Ensure there are no water leaks from any plumbing
connections.
11.3.1 Initial AE3 safety switch activation
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f Engage the AE3 safety switch by firmly pressing the white
reset button until it clicks and fully locks in place (the water
heater is delivered with the safety switch disengaged).