OPERATION OF THE HEATING PUMP
After the water tank with heating pump is electrical connected to water supply (heating) network and .lled with
water, the heating pump is connected to power supply network and ready for operation. Switch the pump on with
the main switch. The heating pump starts operating and operates until the switch-off temperature is reached
(factory set to 55°C). After switching off, the operation is interrupted until the water temperature falls by 5°C (e.g.
to 50°C), when the heating pump starts operating again.
The user may adjust the switch-off temperature of water to max. 55°C (thermostat blocking) or optionally reduce
it up to min. (thermostat blocking).
Legend:
1. Heat pump switch on
2. Legionella Control switch on
3. Control lamp - heat pump operation
4. Control lamp - Legionella Control switch on
5. Display
6. Temperature setting - increase
7. Temperature setting - reduce
After connecting the heat pump to power supply, the display shows servicing markings and then the temperature
value. If the water temperature in the hot water tank is lower, the heat pump is automatically switched on (the red
signal lamp 3 is on). To turn the off the operation of the heat pump, press the key 1 (ca. 2 seconds). The operation
of the heat pump is switched off; the display shows the marking OFF.
Switching on the Heat Pump
Press the key 1 and keep it pressed for some 2 seconds. The display shows the current water temperature in the
hot water tank, the signal lamp 3 switches on.
Temperature Setting
Pres and release key 6 or 7. When the key is pressed, the display shows the marking°C. Now you can set the
required temperature. With key 7 the temperature is reduced and with key 6 the temperature is increased. When
the setting is completed, the marking on the display starts flashing. After eight flashes the new temperature is
set, and the display shows the temperature of the water in the hot water tank.
In versions with installed thermometer, the thermometer will show ambient temperature, while the display on
the heat pump will show the temperature of water in the lower part of the water heater. This is why the two
temperatures will vary.
Legionella Control Programme
Your heat pump features a system for thermal disinfection for legionella prevention. This system includes a
special function for high temperature heating (up to 65°C) of water in the hot water tank. The system operates
automatically, switching on the high temperature heating of water every 14 days. When the temperature in the
water tank reaches 65°C, the high temperature heating is switched off.
High temperature heating can also be activated manually, by pressing the key 2 (ca. 5 seconds). The display
alternatively shows the temperature of water in the hot water tank and marking LEG. When the temperature in
the hot water tank reaches 65°C, the heat pump is switched to normal operation.
WARNING: Even after switchin off with the switch, the elements in the electric control unit are live!
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