7.3
Commissioning procedure
Caution
Initial commissioning must be performed by a qualified
professional.
1. Refit all the panels, fascias and covers on the indoor unit and outdoor
unit.
2. Arm the circuit breakers on the electric panel:
Outdoor unit circuit breaker
Indoor unit circuit breaker
Electrical back-up circuit breaker
3. Activate the on/off switch on the indoor unit.
The heat pump is switched on. The Welcome message is displayed.
4. Select the country and language.
5. Activate the Daylight Saving Time function.
6. Set the date and time.
7. Set the CN1 and CN2 parameters. The values are available on the
data plate of the indoor unit. They are also shown in the table below.
The CN1 and CN2 parameters are used to indicate to the system the
type of outdoor unit and back-up present on the installation. They can
be used to preconfigure the parameters based on the installation
configuration.
8. Select Confirm to save the settings.
9. The heat pump begins its vent cycle.
Points to check:
After commissioning, domestic hot water production takes priority. Keep
this operating mode to increase the temperature and check that the heat
pump is operating correctly.
At the end of the vent cycle, if the heat pump does not start, check the
flow temperature on the user interface. The flow temperature must be
above 10 °C to enable the outdoor unit to start. This protects the
condenser during defrosting.
If the flow temperature is below 10 °C, the back-ups start instead of the
outdoor unit. The outdoor unit takes over when the flow temperature
reaches 20 °C.
7.3.1
Configuration numbers CN1 et CN2
Configuration numbers allow the heat pump to be configured according to
the type of back-up and the output of the outdoor unit installed.
Tab.44 With immersion heater; electrical back-up
Output of the outdoor unit
CN1
CN2
4.5 kW
1
2
6 kW
3
2
8 kW
5
2
7.4
Final instructions for commissioning
1. Check that the following installation components are switched on
correctly:
Circulating pumps
Outdoor unit
Heating back-ups
Fig.57
MW-1001278-1
4
Fig.58
MW-6000659-3
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7 Commissioning
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