mundoclima BBC 200 Manuel D'installation page 91

9 - START-UP
3) Heat source will be automatically selected by unit. But
manually E-Heater operation is available.
4) Heat Source Shift
The default heating source is heat pump.
If externalis range out of heat pump, heat pump will stop
running, the unit will shift automatically to activate E-heater
and show the icon LA on the display, then if the
externaltemperature goes into the running range of heat
pump again, it will stop E-heater and shift automatically to
heat pump again, and the icon LA will be extinguished.
If the target setting water temperature is higher than Max.
temp(Heat pump), the unit will activate heat pump firstly to
the Max. temperature, then stop heat pump, activate E-
heater to continually heat water to the target temperature.
If manually activate the E-heater running mode when heat
pump running, E-heater and heat pump will work together
until the water temperature gets to target temperature.
So if want to heat quickly, please manually activate E-
heater.
NOTE
E-heater will be activated once for the current heating
progress, if want to apply E-heater again please push
E-HEATER.
If system occurs some malfunctions, error code "E7" and
will be shown on the display, then heat pump will stop running,
and the unit will activate automatically E-heater as the backup
heat source, but the code "E7" and
power off.
If only use E-heater, about only 75 liters water (unit 200) will
be heated or about only 150 liters water (unit 300), so must set
higher target water temperature if externaltemperature is out of
heat pump running range.
Defrosting During Water-heating
In heat pump running period, if the evaporator frosted in lower
ambient temperature, the system will defrost automatically to
keep effective performance(about 3~10min). At defrosting
time, the fan motor will stop, but compressor will still run.
will be shown until
About TCO and ATCO
The power of compressor and E-heater will be automatically
shut-off or turn on by TCO and ATCO.
If the water temperature is higher than 78°C, the ATCO will
automatically shut off the power of compressor and E-heater,
and reconnect it if the temperature falls down below 68°C.
If the water temperature is higher than 85°C, the TCO will
automatically shut off the power of compressor and E-heater.
After that it needs to be reset manually by pressing the red
button on the TCO.
Notes
While the external temperature below than -7°C, heat pump
efficiency will decrease dramatically, the unit will automatically
shift to E-heater mode.
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