Danfoss Optyma iCO2 Instructions Manual page 41

Instructions
<Protective device activation value>
Name
High pressure switch
Current sensor (compressor)
Discharge pipe temp. sensor
Fuse (gas cooler motor)
• If the load of load unit is too large or when the user has turned ON the condensing unit with the power supply to the load unit turned OFF, the
condensing unit may repeat start and stop.
If such stops were repeated 120 times within 24 hours continuously, the 7-segment display indicates "oPE-11". Check the load condition.
"oPE-11" can be cancelled with the error inspection reset.
• Method of error inspection reset
When any error occurred, rest it as follows.
1. Remove the cause of error.
2. Change the display on the 7-segment display to "P20" by pressing SW8 and SW9, and press SW7 for more than 3 seconds.
3. Change from "0" to "1" with SW8. The error will be reset.
If the external input P08 (CNS3) is set at "3: Error reset), it can be reset externally.
Make sure, however, to check the error code and remove the cause of error before resetting.
If SW6-7 is turned to "ON", the warning "oPE-11" is not displayed.
• When total operation time of compressor has exceeded 30,000 hours since the last maintenance, the warning "oPE-11" is displayed to urge the user to
request for maintenance. If this warning is displayed, you should prepare for maintenance.
• Where the active filter is installed, you can set the external input for the filter.
Adjust the 7-segment display to the code No. "PXX" which corresponds to the connector to which the active filter error is input, and adjust the setting item
at "6: AF error" with SW8. If the active filter error signal is input in this condition, "oPE-11" is indicated on the 7-segment display. It does not stop constantly.
To set it at the constant stop, change the setting item from "6" to "7" with SW8.
External input connector name
CNS3
CNG1
CNG2
© Danfoss | Climate Solutions | 2023.02 | LCA012A024
Symbol
63H
CT
Th -D1
0
CNDC1,2
Code No. Data display range
P08 4:(Default) 0~20
P09 5:(Default) 0~20
P10 9:(Default) 0~20
Activation value
Activation value/release value = 140
OP-UPAC015COP04E: 19A
Activation value * 135°C
4A
Setting item
0: External operation input
1: Demand input
2: Quiet mode input
3: Error reset
4: Compulsory oil return input
5: Gas cooler fan snow control input
9: Multistage demand input
118A5495A - AN405821998738en-000102 | 41
+0
/90 bar
-10