31
No.
Device
status
Alarm
code
Alarm descrip-
tion
Possible cause
Recommended remedy
Restore (*)
2
Fans and
compres-
sors are
not working,
pump is
working.
B1LP
B2LP
Refrigerant low
pressure alarm
Unit low on refrigerant
Check liquid sight glass and in case
contact service
A
becomes
M
after 10
events in 1
hour
Liquid flow too low
Check right rotation of pump and
possible obstruction on liquid circuit
Percentage of antifreeze
too low or not present,
even for range of tem-
perature higher than 5
…
C
Add antifreeze, or try to increase
temperature or flow of liquid the
combination of these three element
can cause ice problem
Dirty evaporator
Clean evaporator and in case con-
tact service
B1AC
B2AC
Antifreeze alarm
Percentage of antifreeze
too low
Add antifreeze to the liquid
M
Set point is too low for
actual system
If possible increase set point, or
check combination of flow, tempera-
ture and antifreeze percentage
Liquid flow too low
Check right rotation of pump and
possible obstruction on liquid circuit
Dirty evaporator
Clean evaporator and in case con-
tact service
C1OP
ü ü
..
C6OP
Compressor oil-
pressure switch
alarm or oil level
alarm.
Oil level in the compres-
sor crank case is too
low.
Fill the compressor crank case with
oil or contact service
A
becomes
M
after 1
events in 1
hour
C1TR
ü ü
..
C6TR
Compressor 1, 2,
3, 4, 5, 6 thermal
switches alarm
Thermal protections of a
new unit are in OFF po-
sition
Switch MTC in ON
M
after reset
MTC
Compressor is having
problem
Reset thermal switch and in case
contact of a persistent problem con-
tact service
AP1
ü ü
..
AP12
One of the probe
is defective
Probe can be defective
or not well connected
Check connection and in case
change probe
A
3
Unit is work-
ing
AEUN
High liquid tem-
perature alarm in
inlet line (if P3 or
P4 high temp.
alarm is present)
Required cooling capaci-
ty is higher than nominal
Decrease the required cooling ca-
pacity
A
becomes
M
after 3
events in 1
hour
AEP1
AEP2
Maintenance
pumps 1, 2 only
on request
Service on unit is re-
quired due to length of
work
Contact a refrigerant technician
M
C1MN
ü ü
..
C6MN
Maintenance
compressors 1, 2,
3, 4, 5, 6 only on
request
Service on unit is re-
quired due to length of
work
Contact a refrigerant technician
M
HOW TO RESET AN ALARM EVENT (CONTROLLER TYPE
”
C
’
)
Controller Type
”
C
’
(PCGE 590 to PCGE 3300; PCGEZ 220 to PCGEZ 480)
1.
Enter the menu by pressing the
key.
2.
Use the
or
key to show
”
ALrM
ä
on the display.
3.
Press the
key and release it; the alarm code will now appear on the lower display.
4.
Upper display: rSt will appear in the display if the alarm can be reset, NO if this is not possible. Use the
or
key to
scroll through the alarm list.
5.
Press the
key when rSt
lights up in order to reset the alarm; after a short time the system will move on to the next alarm.
6.
To exit the function menu, press the
key and then release it or wait for the timeout. The
”
menu
symbol will disappear.
Summary of Contents for OCGE 111
Page 69: ...69 11 2 WIRING DIAGRAM MODELS PCGE 11 to PCGE 25 PCGEZ 08 230V 1Ph 50Hz POWER COMMAND DIAGRAM ...
Page 70: ...70 MODEL PCGE 28 230V 1Ph 50Hz POWER COMMAND DIAGRAM ...
Page 71: ...71 MODEL PCGE 28 400V 3Ph 50Hz POWER COMMAND DIAGRAM ...
Page 72: ...72 MODELS PCGE 31 to PCGE 41 OCGE 31 to OCGE 41 230V 1Ph 50Hz POWER SECTION ...
Page 73: ...73 MODELS PCGE 31 to PCGE 41 OCGE 31 to OCGE 41 230V 1Ph 50Hz COMMAND SECTION ...
Page 78: ...78 MODELS PCGE 590 to PCGE 3300 PCGEZ 360 to PCGEZ 480 400V 3Ph 50Hz ...
Page 79: ...79 ...
Page 80: ...80 ...
Page 81: ...81 ...
Page 86: ...86 MODEL PCGE 1100 with tank and pump MODEL PCGE 1300 with tank and pump ...
Page 87: ...87 MODEL PCGE 1900 2200 with tank and pump MODEL PCGE 2900 3300 with tank and pump ...
Page 91: ...91 MODEL PCGE 1100 without tank MODEL PCGE 1300 without tank ...
Page 92: ...92 MODEL PCGE 1900 2200 without tank MODEL PCGE 2900 3300 without tank ...
Page 97: ...97 710 1789 00 00 02B 轜 07 05 2008 ...
Page 166: ...69 11 2 WIRING DIAGRAM MODELS PCGE 11 to PCGE 25 PCGEZ 08 230V 1Ph 50Hz POWER COMMAND DIAGRAM ...
Page 167: ...70 MODEL PCGE 28 230V 1Ph 50Hz POWER COMMAND DIAGRAM ...
Page 168: ...71 MODEL PCGE 28 400V 3Ph 50Hz POWER COMMAND DIAGRAM ...
Page 169: ...72 MODELS PCGE 31 to PCGE 41 OCGE 31 to OCGE 41 230V 1Ph 50Hz POWER SECTION ...
Page 170: ...73 MODELS PCGE 31 to PCGE 41 OCGE 31 to OCGE 41 230V 1Ph 50Hz COMMAND SECTION ...
Page 175: ...78 MODELS PCGE 590 to PCGE 3300 PCGEZ 360 to PCGEZ 480 400V 3Ph 50Hz ...
Page 176: ...79 ...
Page 177: ...80 ...
Page 178: ...81 ...
Page 183: ...86 MODEL PCGE 1100 with tank and pump MODEL PCGE 1300 with tank and pump ...
Page 184: ...87 MODEL PCGE 1900 2200 with tank and pump MODEL PCGE 2900 3300 with tank and pump ...
Page 188: ...91 MODEL PCGE 1100 without tank MODEL PCGE 1300 without tank ...
Page 189: ...92 MODEL PCGE 1900 2200 without tank MODEL PCGE 2900 3300 without tank ...