Instructions / Assembly

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ENGLISH
INSTALLATION
Commissioning
11.4.5 Connection to terminal block X0
f Remove the appliance cover (See 16.1, “Removing the appli-
ance cover”, pg. 29).
D0000034803
1
1 Terminal X0
The appliance ships pre-wired with a cable. If the appliance needs
to be re-wired, follow the steps below when reconnecting the
cable.
f Prepare the leads for connection to X0 in such a manner that
each lead terminating at X0 has a wire ferrule.
f Route leads through the strain relief.
f Connect the leads to X0 (see chapter "See 11.4.3, “Connection
with external signal transmitter”, pg. 26).
11.5 Assembling the appliance
Note
Refit the appliance cover after completing your work.
See chapter "See 16.10, “Fitting the appliance cover”,
pg. 31).
12. Commissioning
12.1 Commissioning
!
Material losses
Never connect the appliance to the power supply before
the DHW tank is filled.
Note
After an interruption of the power supply, compressor op-
eration remains blocked for at least one minute to allow
the electronic main board to initialize.
If the compressor subsequently fails to start, it may be
disrupted by additional safety devices (Klixon and high
pressure switch). This interruption due to the compressor
motor klixon is terminated automatically.
If the high pressure switch responds, it can be manually
reset after the pressure is less than 246 psi (17 bar). This
normally occurs 5 minutes after responding.
12.1.1 Filling the DHW tank
Fill the DHW tank and vent the pipework by following the proce-
dure below:
f Close the drain valve.
f Open all DHW tap points and the shut-off valve in the cold
water supply.
f Close the DHW tap points as soon as water starts to emerge
from them.
12.1.2 Settings / function check
f To check the function, select the maximum set temperature.
A higher set temperature allows for more mixed water but lower
efficiency. A lower set temperature is more efficient but less mixed
water is available. Never reduce the set temperature below 122 °F
(50 °C) to reduce problems with legionella.
12.1.3 Appliance handover
f Explain the appliance function to users and familiarize them
with its operation.
f Make users aware of potential dangers, especially the risk of
scalding.
f Make users aware of critical environmental factors and re-
quirements concerning the installation location.
f Inform users that water may drip from the safety valve
during the heating operation.
f Hand over these operating and installation instructions to
users for safe-keeping.
12.2 Recommissioning
If the appliance is switched off due to an interruption to the power
supply, no specific measures for restarting are required once the
power supply has been restored. The appliance has saved the
parameters most recently set and continues operating with these.
If the comfort heating function was active before interruption of
the power supply, this is reactivated once the power supply has
been established again.