Commissioning; Preparation; Initial Start-Up - Stiebel Eltron DEL 18/21/24 Plus Utilisation Et Installation

INsTALLATIoN

Commissioning

11. Commissioning

11.1 Preparation

Internal anti-scalding protection via jumper slot
Jumper position Description
43 For example in nurseries, hospitals, etc.
50
55 Max. for shower operation
60 Factory setting
No jumper Limited to 43 °C
f Install the anti-scalding protection setting jumper in the re- f
quired position (= temperature in °C) on the pin strip.
CAUTION Burns
If operating with preheated water, e.g. if using a solar
thermal system, the internal anti-scalding protection and
the temperature limit Tmax, which can be set by the user,
may be exceeded.
f In this case, limit the temperature with an upstream f
central thermostatic valve (e.g. ZTA 3/4).
Changing connected load via jumper slot, DEL 18/21/24 Plus
only
If you select a connected load other than the 21 kW factory setting
for appliances with selectable connected load, you will need to
reposition the jumper.
f Install the jumper in the required position on the pin strip. f
Jumper position Connected load
1 18 kW
2 21 kW
3 24 kW
No jumper 18 kW
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43
50
55
60
1
2
3

11.2 Initial start-up

f Open and close all connected draw-off valves several times, f
until all air has been purged from the pipework and the
appliance.
f Carry out a tightness check. f
f Activate the safety switch by firmly pressing the reset button f
(the appliance is delivered with the safety switch disabled).
f Connect the programming unit connecting cable to the PCB. f
Note
For undersink installation, the appliance cover should
be turned round for easier operation; see chapter "Alter-
native installation methods / Pivoting appliance cover".
f Hook the appliance cover at the top rear into the back panel. f
Pivot the appliance cover downwards. Check that the appli-
ance cover is securely seated at both top and bottom.
f Tick the selected connected load and rated voltage on the ap- f
pliance cover type plate (on both sides). Use a ballpoint pen
to do this.
f Secure the appliance cover with the screw. f
f Fit the fascia to the appliance cover. f
f Remove the protective film from the user interface. f
f Switch on the power supply. f
≥ 60 s
DEL Plus | 35