6
UTILITY USE
6.1 MAIN
FUNCTIONS
6.1.1 Start-up
On the Control Panel:
- Select Mode.
- Select “Operation”: On.
- The PRG button flashes for 3 min. (compressor delay) then remains on.
6.1.2 Seasonal
change
On the Control Panel:
- Select "Mode".
- Choose the operating mode from: Summer, Winter, domestic hot water only.
6.1.3 Switch
off
On the Control Panel:
- Select “Operation”: Off.
- If on, the PRG indicator goes off.
6.1.4
Set point setting
On the Control Panel:
- Press the PRG key and then ENTER.
- Select the "Set point" menu and confirm with the Enter key.
- Choose the value to be changed using the Arrow keys.
- Change the values using the "Arrow" keys and confirm with the Enter key.
6.1.5
Current date and time setting
On the Control Panel:
- Press the PRG key.
- Select the "Clock" menu and confirm with the Enter key.
- Select "Set clock CK1" and confirm with the Enter key.
- Choose the value to be changed using the Arrow keys.
- Change the value and confirm with the Enter key.
6.1.6 Alarms
In the event of malfunctions, the Alarms symbol lights up:
- Press the Alarms button to view the alarm on the display.
- Press the Esc key to not reset.
- Press the Alarms key again to reset.
For more detailed information, refer to the Control Panel Manual supplied.
In case of operation with well water, check correct functioning of the relative flow switch.
In the case of units in the well version (/P), make sure that the water in the source is compatible with the materials of the
plate heat exchanger. It is also necessary to be certain that the flow rate of the source is not lower than that indicated in the
technical data of the unit. These checks must be repeated periodically to prevent dangers of serious breakages to the unit.
Rev. C 09-2020
MTEC.3810.GB-C-1 Operation and maintenance manual serie WZA English
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