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Menu item
Alarm Menu
Temp&Hum Set
System State
System Set
Help Menu
Display Set
6.6.2 Alarm Menu
Select Alarm Menu on Main Menu screen to enter the screen shown in Figure 6-8. Press the Up or Down button to
scroll up or down the menu items.
Active Alarm
The Active Alarm menu is used to monitor the present alarm status of the AC unit and prompt No Alarm or detailed
alarm status information. The detailed alarm status information includes XX/YY, alarm type and alarm start time, as
shown in Figure 6-9. XX is the serial number of alarm status record and YY is the total number of alarm status record.
Note
The latest alarm SN is the biggest number. Press the Up or Down button to scroll through the alarm status
records if more than one alarm is activated.
The alarm status records will be automatically cleared upon system power-off.
Alarm History
The Alarm History menu is used to view the historical alarm record of the AC unit, including XX/YY, alarm type, alarm
start time and alarm end time, as shown in Figure 6-10. XX is the serial number of the historical alarm record and YY
is the total number of the historical alarm records.
Table 6-4 Main Menu description
View alarm status records, alarm historical records, abnormal high pressure records; Set alarm
parameters
Set compressor or fan operating mode; set temperature & humidity setpoints and relevant parameters
View system operating state, ambient temperature & humidity, system input & output status, system
operating time and start & stop records of key components; calibrate analog signals
Set system basic parameters and operating rapameters of compressor, fan, and EEV (electronic
expansion valve); configure optional function; set teamwork and manual mode
Set time; change password; view version information
Adjust the screen contrast; change language type
Figure 6-9 Active Alarm Menu
Figure 6-10 Alarm History Menu
Liebert.CRV+ Series Air Cooled Precision Air Conditioner User Manual
Chapter 6 Micro-Processing Controller
Descriptions
Figure 6-8 Alarm Menu
35
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