Daikin EWWD700CJYNN [19/28] Service menu

Daikin EWWD550CJYNN [19/28] Service menu
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5.9 Service Menu
Service parameters can be defined in this section by entering a password and accessing the followings forms:
Compressor control (OFF/AUTO/MANUAL) and compressor load in manual mode
Alarms reset
SoftLoad reset
Oil heating reset
5.10 Alarms Menu
When an alarm condition occurs, the display BUZZER sounds. By pressing the alarm key, the current fault is displayed.
By pressing the alarm key twice, the buzzer is stopped, and by pressing it three times the alarm is cleared.
REMARK: Sometimes, after an alarm has occurred, it is possible that also a spurious alarm of star/delta transition failed
occurs; in this case fix the earlier alarm first and, only if the spurious one occurs again, check the electrical connections.
If the alarm is not cleared after pressing again the alarm key, it means that the fault conditions persists.
5.11 Buffer Alarm Menu
The last ten alarms of every chiller circuit are stored in this section.
Each form displays the date, the time and the description of the alarm. By pressing the enter key when an alarm
description is displayed, the operating conditions at the time the alarm occurred (temperatures, pressures, expansion
valve status and compressor load) are shown.
5.12 Alarm List
In the following table, the list of the possible alarms with the identifier number, the cause and the reset type (A = auto,
M = manual) is shown
Alarm Alarm cause Reset
001 Phase monitor Activation of the phase control device. M
002 Freeze alarm Antifreeze protection. The outlet water temperature is equal to
the antifreeze value.
M
005 Evaporator Flow alarm Action by evaporator flow switch in a low flow condition. The
water pump might be off
M
006 Low pressure alarm Low oil pressure. M
007 High discharge temperature switch Action by discharge temperature switch M
008 Fault transition Starting procedure is not complete. Verify correct sequence M
009 Low oil pressure The oil pressure is not enough for the correct lubrication of the
compressor. Verify that the condensation pressure is sufficient.
M
010 Low pressure switch
011 High oil pressure difference High oil differential pressure. The oil filter might be dirty. M
012 High pressure switch Action by high pressure mechanical switch M
016 Compressor overload Action by thermal protection of compressor motor or by high
temperature switch
M
023 High pressure alarm Action by microchip on high pressure M
030 B1 sensor /input faulty or not
connected
M
031 B2 sensor /input faulty or not
connected
M
032 B3 sensor /input faulty or not
connected
M
033 B4 sensor /input faulty or not
connected
M
034 B5 sensor /input faulty or not
connected
M
035 B6 sensor /input faulty or not
connected
M
036 B7 sensor /input faulty or not
connected
M
037 B8 sensor /input faulty or not
connected
M
039 Evaporator pump maintenance Request for evaporator pump maintenance M

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