Chapter 5 Micro-Processing Controller 33
Liebert CRV+ Series Air Conditioner User Manual
Note
1. Press the Up or Down button to scroll through the historical alarm records if more than one alarm is activated.
2. Up to 200 historical alarm records can be stored. They will not be cleared upon system power-off.
HP Abnormal
The HP Abnormal menu is used to view the high pressure abnormal records of the AC unit, including XX/YY, start
time and end time of high pressure abnormality, as shown in Figure 5-11. XX is the serial number of the high pressure
abnormal record and YY is the total number of the high pressure abnormal records.
Figure 5-11 HP Abnormal menu
Note
1. Press the Up or Down button to scroll through the high pressure abnormal records if more than one high pressure abnormality
is activated.
2. Up to 50 high pressure abnormal records can be stored. They will not be cleared upon system power-off.
Alarm Set
Select Alarm Set on the Alarm Menu screen to enter the screen shown in Figure 5-12. Press the Up or Down button
to scroll through the menus. The Alarm Set settings will not be lost when the power fails. For detailed setting ranges,
refer to Appendix 4 Parameter Setting Table.
Note
It is not recommended to change the defaults. If the change is necessary, change them under the guidance of the trained
professionals.
Figure 5-12 Alarm Setting menu
Note
It is recommended not to change the default value of alarm settings. If necessary, please perform it under the direction of trained
professional personnel.
Alarm Stpt
Select Alarm Stpt on the Alarm Set screen to enter the screen shown in Figure 5-13. Press the Up or Down button
to scroll through the menus.
Figure 5-13 Alarm Stpt menu
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