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8.3 Field settings
The unit should be configured to match the installation environment (outdoor climate, installed options, etc.) and user demand.
A number of field settings are available. These settings are accessible and programmable through “FOR SERVICEMAN” in
user interface.
Powering on the unit
When power on the unit, "1%~99%" is displayed on the user interface during initialization. During this process the user interface
cannot be operated.
Procedure
To change one or more field settings, proceed as follows.
NOTE
Temperature values displayed on the wired controller (user interface) are in °C.
Switch off the power supply before making any connections.
After the installation of the unit, check the following before switching on the circuit breaker:
Field wiringMake sure that the field wiring between the local supply panel and unit and valves (when applicable),
unit and room thermostat (when applicable), unit and domestic hot water tank, and unit and backup heater kit have
been connected according to the instructions described in the chapter 7 "FIELD WIRING", according to the
wiring diagrams and to local laws and regulations.
Fuses, circuit breakers, or protection devices Check that the fuses or the locally installed protection devices are of
the size and type specified in 7.3 "Safety device requirements". Make sure that no fuses or protection devices
have been bypassed.
Backup heater circuit breakerDo not forget to turn on the backup heater circuit breaker in the switchbox (it
depends on the backup heater type). Refer to the wiring diagram.
Booster heater circuit breakerDo not forget to turn on the booster heater circuit breaker (applies only to units with
optional domestic hot water tank installed).
Ground wiringMake sure that the ground wires have been connected properly and that the ground terminals are
tightened.
Internal wiringVisually check the switch box for loose connections or damaged electrical components.
MountingCheck that the unit is properly mounted, to avoid abnormal noises and vibrations when starting up the unit.
Damaged equipmentCheck the inside of the unit for damaged components or squeezed pipes.
Refrigerant leakCheck the inside of the unit for refrigerant leakage. If there is a refrigerant leak, call your local dealer.
Power supply voltageCheck the power supply voltage on the local supply panel. The voltage must correspond to the voltage
on the identification label of the unit.
Air purge valveMake sure the air purge valve is open (at least 2 turns).
Shut-off valvesMake sure that the shut-off valves are fully open.
DANGER
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Keys Function
▼▲
Go to the menu structure(on the home page)
Navigate the cursor on the display
Navigate in the menu structure
Adjust settings
Turn on/off the space heating/cooling operation or DHW mode
Turn on/or off functions in the menu structure
Come back to the up level
Long press for unlock /lock the controller
Unlock /lock some functions such as "DHW temperature
adjusting"
Go to the next step when programming a schedule in the menu
structure; and confirm a selection to enter in the submenu of the
menu structure.
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