Zibro A2W300 Manuel D'utilisation Et D'installation page 48

NOTE:
1)
2)
7
4
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function can be enabled or disabled. If this function is enabled the Fan
ventilation Icon appears on the display, the fan will continue to ventilate
the air when the water temperature reaches the set point and the heat pump
boiler switches to stand-by position. If this function is disabled the fan will
stop when the water temperature reaches the set point and the heat pump
boiler switches to the stand-by position.
Disinfection.
To prevent legionella the heat pump boiler is equipped with anti legionella
function. This function will heat up the water once every week up to 70°C
and keeps this temperature for half an hour after which the heat pump boiler
wil return to the set program. This time is sufficient to prevent contamination
of the water with the legionella bacteria. The disinfection starting time is
adjustable with parameter 13.
BE CAREfUL WhEN USING A ThERMOSTATIC TAp.
The scale of the thermostat hot water tap should be adjusted to an inlet
water temperature of 55°C. However, during the disinfection, the hot
water temperature will reach the set value of parameter 4. ( default
70°C.) The thermostatic hot water tap scale does not match the normal
outlet temperature of the domestic hot water any more. The domestic
hot water temperature will become higher as the temperature shown
on the thermostat valve scale.
The heat pump stops running at 55°C to protect the compressor. If water is
needed at temperatures higher than 55°C an electric heater will heat the
water from 55°C to the desired temperature. (Parameter "0")
The turbo function is used to heat the water to the default value in a shorter
time.
In 'turbo" mode both the heat pump and the electric heater are operating.
When the water temperature reaches 55°C, the heat pump stops to protect
the compressor, now only the electric heater heats the water to the heat
pump boiler water setting temperature.
Error codes and reset
If there is a malfuntion during stand-by or running status the heat pump
boiler will stop automatically and show the error code on the screen of the
controller. To reset the heat pump boiler cut off the power by taking out the
electrical plug for 10 seconds. Then switch the power on again. If the error
code returns contact your local dealer.
Illustration 13