Vertiv Liebert CRV - 11 MONITORING AND MANAGING THE LIEBERT CRV WITH LIEBERT iCOM; 11.1 Automatic restart after power failure; 11.3 Variable-speed Fan Control

11 MONITORING AND MANAGING
THELIEBERTCRVWITHLIEBERT®ICOM™
NOTE: For detailed descriptions and operating instructions for using iCOM, refer to the “Liebert®
iCOM™ User Manual” included with your system documentation.
11.1 Automatic restart after power failure
Set the cooling unit to return to the status at which it was operating when input power returns after a
power failure. (“On” if it was powered-on and “Off” if it was powered-off before the failure.)
1. On the Service menu, touch O p tion s S etu p .
The OPTIONS SETUP panel opens.
2. In the category column, touch M isc S ettin gs.
The MISC SETTINGS panel displays.
3. Set Au to R esta rt En ab le to Yes, and use the slider to set the number of seconds to delay before
restart, then click Sa ve.
Automatic restart is enabled.
• Touch C an cel to discard the changes without saving.
11.2 Loss-of-power notification
When power is restored after an interruption, a Loss-of-power alarm lets you know that the interruption
occurred. Once acknowledged, the alarm resets after 30 minutes. You can disable the event notification,
set the notification delay and change event type.
1. On the Service menu, touch A larm /Even t Setu p .
2. On the ALARMS & EVENTS panel, touch M isc Ev en ts to expand it, then touch L O SS O F
PO W ER .
3. On the EDIT panel, touch N otification s.
The EDIT panel displays the notification properties.
4. Adjust the notification properties, then touch S a ve.
The notification is updated.
• Touch C an cel to discard the changes without saving.
11.3 Variable-speed Fan Control
Air flow is adjustable via iCOM manually using a building-management system (BMS) or automatically
using locally-installed temperature sensors.
NOTE: The cooling units ship with the factory setting “Return Sensor” for the temperature-control
sensor and the fan-speed-control sensor.
11.3.1 Manual fan-speed control
In Manual fan-control mode, the speed of the motor can be set in one of the following ways:
• The manual (fixed) fan speed may be set via iCOM.
• Remotely using a Liebert IntelliSlot® card.
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