Panasonic Aquarea PAW-DHWM200A Notice D'utilisation page 47

HEAT PUMP OPERATION
The heat pump can be operated using an LCD touch screen (Fig. 10). If you press anywhere on the screen, the screen lights up.
When the screen is lit up, the operation fields are active.
When the heat pump is connected to the water and power supply mains and the boiler is filled with water, the heat pump is ready
to be used. The heat pump heats the water in the range 10 °C - 65 °C. From 65 °C - 75 °C the water is heated by electrical heaters.
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Figure 10: Operation display
Starting/stopping the heat pump
• Starting/stopping the heat pump
When the appliance is switched on, the fan starts first and operates for one minute (symbol no. 20 is displayed). If the
temperature of inlet air is appropriate, the controlling unit switches on the compressor and the heat pump operates in normal
mode (symbols 16 and 20 are displayed). The heat pump is on, the screen remains unlit and inactive.
In 60 seconds after the last touch of the screen, the illumination and activity of the screen are turned off, but that does not affect
the operation of the heat pump. Pressing anywhere on the screen re-activates the screen and its illumination.
If trying to start up at a lower temperature, please see chapter "Operation at lower temperatures".
• By holding field no. 9, the heat pump is switched off.
The appliance stops functioning and the only field visible on the screen is field no. 9. (If you switch off the heat pump for a longer
period of time, the water must be drained from the pump if there is any danger of freezing).
Power failure protection
In case of power failure, the settings remain stored for up to 23 hours.
After restarting, the heat pump operates in the same mode it was operating in before the power failure.
Operation at lower temperatures
When the appliance is switched on, the fan starts first and operates for one minute (symbol no. 20 is displayed). If the temperature
of inlet air is lower than -7 °C, the fan is turned off. Domestic water is heated with heaters. The heat pump operates in the reserve
mode (symbol no. 14 is displayed). The possibility of switching to normal mode is checked every 2 hours by switching on the fan
for one minute. If the temperature of inlet air is higher than -7 °C, the heat pump switches to normal mode of operation (symbols 16
and 20 are displayed). The heaters switch off. The heat pump is on, the screen remains unlit and inactive.
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LEGEND
1 Signalization of the operation of solar collectors
2 Alternative source of heating/turned on
3 Signalization of the backup operation
4 Indication, overview of operation errors, entrance
into the service menu
5 Display and setup of temperature in °C
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6 Start and setup of the VACATION programme
7 Day of the week
(1 .. Monday, ..., 7 .. Sunday)
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8 Reducing the value
9 Heat pump on/off switch
10 Increasing the value
11 TIMER start and setup
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12 Time setup and display
13 Start-up of quick heating "TURBO"
14 Indicator of the heating element operation
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15 Start-up of heating to the maximum temperature
level
16 Signalization of compressor operation
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17 Signalization of anti-legionella programme operation
18 Warm water quantity display
19 Signalization of defrosting
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20 Signalization of fan operation
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