At lower air temperatures, the evaporator defrosting cycle is started if necessary. Symbol no. 19 is displayed on the screen. The
fields 2, 4, 6, 11, 13 and 15 remain inactive. Defrosting takes place until the conditions for normal operation of the heat pump are
achieved.
After successful defrosting, the heat pump returns to normal operation (symbols 16 and 20 are displayed).
If defrosting is unsuccessful, the controlling unit displays an error message. Field no. 4 starts flashing, accompanied by warning
beeps. By pressing field no. 4 the warning beeps can be turned off. Error code E247 appears in field no. 12 and the pump switches
automatically to heating with electric heaters. The screen displays symbol no. 14. The error code can be deleted at any time by
pressing field no. 4. Field no. 12 resumes to displaying time.
Setting the clock and day of the week
• Hold field no. 12, until field no. 7 shows a flashing number of the day of the week.
• By pressing + or – you can set the number of the day of the week (1 – Monday, ..., 7 – Sunday).
• Press field no. 12 again (flashing hour setting is displayed).
• By pressing + or – set the hour (by holding + or – you can speed up the setting).
• Press field no. 12 again.
• Flashing minute setting is displayed.
• By pressing + or – set the minutes (by holding + or – you can speed up the setting).
• The setting is stored when you press field no. 12, or when the field stops flashing.
5 - Temperature
settings
Figure 11: Temperature settings, switch on "TURBO" and "HOT" mode
Setting the temperature
• Press field no. 5 (the set temperature starts blinking).
• By pressing + or – you can change the temperature setting from 10 °C to 75 °C (preset to economic temperature of 55 °C).
• The setting is stored by pressing field no. 5 again, or when field no. 5 stops flashing. After a few seconds, the display shows the
actual temperature. The set temperature should suffice actual needs. Recommended temperature settings are between 45
and 55 °C. Higher temperatures are not recommended as they reduce the efficiency (COP) and extend the time of heating or
increase the number of operating hours.
• In case of power failure, the last stored value is restored.
Switching on the "TURBO" mode
• If you need more warm water than the heat pump can heat up in a short period of time, press field no. 13 (switches on the
"TURBO" mode). The heat pump and heater work simultaneously. The screen shows symbols no. 14, 16 in 20. When the
temperature reaches 55 °C the heat pump returns to the mode used before the "TURBO" mode.
Switching on the "HOT" mode
• If you want to heat the water to the maximum temperature of 75 °C, press field no. 15. The heat pump will heat water to 55 °C.
The screen displays symbols no. 16 in 20. When the temperature in the boiler reaches 55 °C the electric heater turns on to heat
the temperature up to 75 °C. The screen displays the symbol no. 14. When the temperature reaches 75 °C the heat pump returns
to the mode used before the "HOT" mode.
Display of the quantity of water in the heat pump
The display shows the symbol 18:
•
- no warm water
•
- low quantity of warm water
•
- high quantity of warm water
48
o
C
15 - Switch on "HOT" mode
13 - Switch on "TURBO" mode