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Information
Holiday programme
Air source heat pump
23.5
Water pressure
,
,
,
21.7
23.5
24.5
CIRCA/CIRCB
,
,
19.8
23.5
23.5
DHW tank
Outdoor temperature
6.3
Commissioning procedure
Fig.40
Switching on
4
MW-1001277-1
Fig.41
Language selection
Français
Deutsch
Italiano
English
Nederlands
7756241 - v02 - 19062020
Description of the icon
Holiday mode in all circuits simultaneously
Heat pump flow temperature display
Current water pressure display
Symbol representing the operation zone
Temperature display for zone A/B
Temperature display for the domestic hot water
Outdoor temperature display
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
Hydraulic 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
MW-6000659-3
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.
6 Commissioning
MIT-M
45
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