Label Description - Eliwell EWPlus 902 Handbuch

IDPlus 961-974 - HC
Label Description
Alarm
EA
External
Alarm
OPd
Door Open
Defrost
Ad2
due to timeout
Alarm due to
COH
Over Heating
Alarm
Pressure
nPA
switch
alarm
Alarm
Pressure
PAL
switch
alarm
9IS54671.00 10 - 2018
Cause
Digital input activation
(H11 = ±5)
Digital input activation
(H11 = ±4)
(for a time greater than tdO)
End of defrost cycle due
to timeout rather than due
to defrost end temperature
dSt being detected by Pb2.
Pb3 exceeded the value
set by parameter SA3.
Activation of pressure
switch alarm by general
pressure switch.
Activation of pressure
switch alarm by general
pressure switch.
Effect
• Label EA recorded in folder AL
• Alarm icon permanently on
• Regulation blocked if rLO=y
• Recording of label Opd in
folder AL
• Alarm icon permanently on
• Regulator blocked
• Recording of label Ad2 in
folder AL
• Alarm icon permanently on
• Label COH recorded in folder AL
• Alarm icon permanently on
• Regulation locked (Compressor)
If the number N of pressure
switch activations is N < PEn:
• Folder nPA recorded in folder
AL with the number of pressure
switch activations
• Regulation inhibited
(Compressor and Fans)
If the number N of pressure
switch activations is N = PEn:
• Label PAL displayed
• Recording of label PA in folder AL
• Alarm icon permanently on
• Regulation inhibited
(Compressor and Fans)
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Problem solving
Verify and remove the
external cause which
triggered the alarm on the
digital input.
• Close the door
• Delay function defined
in OAO
Await next defrost cycle
for automatic return to
normal
Wait for the temperature
to return to a value of
(SA3-dA3).
Verify and remove the
cause of the alarm on the
digital input (Automatic
Reset)
• Switch the device off and
back on again
• Reset alarms by entering
the functions folder
and selecting the rAP
(Manual Reset) function
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