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INSTALLATION
Commissioning
Wall mounting bracket when replacing an appliance
An existing STIEBEL ELTRON wall mounting bracket may be used
when replacing appliances (except the DHF instantaneous water
heater), as long as the fixing screw is in the lower right position.
Replacing a DHF instantaneous water heater
f Reposition the fixing screw on the wall mounting bracket (the
fixing screw has a self-tapping thread).
f Rotate the wall mounting bracket 180° and mount it on the
wall (the DHF logo is then turned towards you).
Installation with offset tiles
20
2
1
1 Minimum contact area of the appliance
2 Maximum tile offset
f Adjust the wall clearance. Lock the back panel in place using
the fixing toggle (turn 90° clockwise).
www.stiebel-eltron.com
11. Commissioning
WARNING Electrocution
Commissioning must only be carried out by a qualified
contractor in accordance with safety regulations.
11.1 Initial start-up
≥ 60 s
f Open and close all connected draw-off valves several times,
until all air has been purged from the pipework and the
appliance.
f Carry out a tightness check.
f Activate the safety pressure limiter at flow pressure by firmly
pressing in the reset button (the appliance is delivered with
the safety pressure limiter deactivated).
f Fit the appliance cover; it should audibly click into place.
Check that the appliance cover is seated correctly.
f Secure the appliance cover with the screw.
f Switch the power supply ON.
f Check the appliance function.
f Remove the protective foil from the appliance cover fascia.
Appliance handover
f Explain the appliance function to users and familiarise them
with how it works.
f Make the user aware of potential dangers, especially the risk
of scalding.
f Hand over these instructions.
11.2 Recommissioning
Material losses
!
To ensure that the bare wire heating system is not dam-
aged following an interruption to the water supply, the
appliance must be restarted by taking the following steps.
f Disconnect the appliance from the power supply by
removing the fuses/tripping the MCBs.
f Open the tap for one minute until the appliance and
its upstream cold water inlet line are free of air.
f Switch the mains power back on again.
HDB-E Si |
25
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