Operating Instructions and Installation Instructions

35
Installation - for contractors
11. Commissioning
11.1 Initial start-up
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» Fill the appliance by running the tap several times
until the pipework and appliance are free of air.
» Carry out a tightness check.
» Insert the power cable plug, if present, into the
standard safety socket or set the fuse/MCB.
» Check the function of the appliance.
» In the case of oversink installation, afx the company
logo supplied over the existing company logo.
11.2 Appliance handover
» Explain the appliance function to users and familiar-
ise them with its operation.
» Make users aware of potential dangers, especially
the risk of scalding.
» Hand over these instructions.
11.3 Recommissioning
!
Material losses
Following an interruption of the water supply, recom-
mission the appliance by carrying out the following
steps, in order to prevent irreparable damage to the
bare wire heating system.
» Isolate the appliance from the power supply. Pull the
power cable plug, if present, from the socket, or re-
move the fuse/reset the MCB.
» See chapter "Initial start-up".
12. Shutting down
» Isolate the appliance from the power supply by
means of the fuse/MCB in your fuse box or by pulling
the power cable plug from the socket.
» Drain the appliance (see chapter "Maintenance").
13. Troubleshooting
Problem Cause Remedy
The appliance will not
start despite the DHW
valve being fully open.
The aerator in the tap
is scaled up or dirty.
Clean and/or descale
the aerator or replace
the special aerator.
The sieve in the cold
water line is blocked.
Clean the sieve after
shutting off the cold
water inlet line.
The heater is faulty. Check the resistance
of the heating system
and replace the appli-
ance if required.