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INSTALLATION
Commissioning
10.2 Completing the installation
f Open the shut-off valve in the cold water inlet line.
f
Fitting the sealing elements for the appliance cover
3
1 Cover guides
2 Pipe aperture
3 Screw
f Cleanly break out the knock-outs in the appliance cover. If
f
necessary, use a file.
f Push the cover guides provided into the knock-outs.
f
f Secure the back panel at the bottom with a screw.
f
f If you are using flexible water connection pipes, prevent
f
twisting the pipe bends (bayonet fitting inside the appliance).
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11. Commissioning
WARNING Electrocution
Commissioning may only be carried out by a qualified
contractor in accordance with safety regulations.
11.1 Initial start-up
1
2
f Open and close all connected draw-off valves several times,
f
until all air has been vented from the pipework and the
appliance.
f Carry out a tightness check.
f
f Activate the safety pressure limiter. The instantaneous water
f
heater is supplied with the safety pressure limiter in the trig-
gered state. Activate the safety pressure limiter at flow pres-
sure by pressing the reset button with a screwdriver.
f Fit the appliance cover and secure with the screw.
f
f Switch the mains power ON.
f
f Check the function of the appliance.
f
f Remove the protective foil from the appliance cover fascia.
f
Appliance handover
f Explain the appliance function to users and familiarise them
f
with its operation.
f Make the user aware of potential dangers, especially the risk
f
of scalding.
f Hand over these instructions.
f
11.2 Recommissioning
Material losses
!
In order to prevent damage to the bare wire heating sys-
tem, return the appliance into use by the following steps
after the water supply has been interrupted:
f Disconnect the appliance from the power supply by
f
removing the fuses/tripping the MCBs.
f Open the tap until the appliance and its upstream
f
cold water inlet pipe are free of air.
f Switch the mains power back ON again.
f
≥ 60 s
HDB-E AU |
9
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Troubleshooting
