mundoclima BBC 200 Manuel D'installation page 100

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10 - CONTROL
10.3 AUTO-RESTART
If electricity power failed, unit can memorize all setting
parameters, unit will be back to the previous setting when
power recover.
10.4 BUTTON AUTO LOCK
When there is no operation of button for 1 minute, button will
be locked except Unlock button (
Press
for 3 sec., unlock buttons.
10.5 SCREEN AUTO LOCK
If there is no operation of button for 30sec., screen will be
locked (extinguished) except for error code and alarm light.
Press any button will unlock the screen (lighten)
10.7 WHEN ERROR HAPPENED
If some normal errors happen, unit will automatically shift to E-Eheater for emergent DHW supply.
Please contact qualified staff to repair.
If some sever error happen, unit will not start, please contact qualified staff to repair.
If some errors happen, the buzzer will buzz 3 times every other minute and the
Prerss
for 1 sec to stop the buzzer but the alarm icon will keep glittering.
Trouble shooting
Possible reason
Error
Bad connection between power supply plug and socket;
Cold water tapped out
Setting water temperature too low;
and display screen
Temper sensor broken ;
extinguished
PCB of indicator broken.
Public water supply ceased;
No hot water tapped out
Cold water inlet pressure too low (<0,15 Bar) (<0,015 MPa);
Cold water inlet valve closed.
Water leakage
Hydraulic pipeline joints are not sealed well.
10.6 SOMETHING ABOUT SELF-PROTECTION OF
When the self-protection happens, the system will be stopped
and start self-check, and restart when the protection resolved.
When the self-protection happens, the buzzer will buzz in
every other minute, the
shown at water temperature indicator.  
Press
and error code does not disappear until protection resolved.
)
In the following circumstance, self-protection may happen:



Contact service center.
UNIT
will flash and error code will be
button for 1sec to stop buzz, but the
Air inlet or outlet is blocked;
The evaporator is covered with too much dust;
Incorrect power supply (exceeding the range of 220-240V
±10%).
will flash fast.
Solution
Connect again the supply plug
Setting water temp. higher;
Contact service center.
Waiting for public water supply recover;
Waiting for inlet water pressure increase;
Open water inlet valve.
Check and reseal all joints.
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Bbc 300

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