Vertiv | Liebert® CRV4 | User Manual 62
Micro-Controller (Color Screen)
• Alarm History
The Alarm History is used to view the historical alarm records, including the Alarm Status Number (quantiable
number of history alarms), Alarm Serial Number, Alarm Type, and Alarm Time (Start and End Time) as shown in
Figure 6-12.
Figure 6-12 Alarm History
• Press the Up or Down button to scroll through the status records if more than one alarm is activated.
• Up to 1000 historical alarm records can be stored. They will not be cleared upon system Power-O.
6.5.1. Temperature and Humidity
Select the Temperature Humidity setting in the main menu to enter the interface as shown in Figure 6-13
including temperature settings and humidity settings.
• Temp Setting
The Temp Setting menu interface is shown in Figure 6-13. The user can set the supply air temperature, return
air temperature, remote air temperature, and temperature dierence under this menu.