Vertiv SmartRow DCR, Инструкция по установке и эксплуатации

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6.2.1 Set Fixed Fan Speed to Factory-approved Level
To set the fan control to a fixed fan speed at the factory-approved level, select Service Menu > Fanspeed
Control >
• S146 Fan Control Sensor: Manual
• S153 - Fanspeed Dehum/No Power: 100/100
6.2.2 Prevent False High- and Low-Temperature Alarms
The Liebert iCOM is set at the factory for open rooms. The high number of air exchanges in the SmartRow
DCR may cause false alarms. These may be prevented by delaying the sensor triggers.
To delay the sensor triggers, make these settings in the iCOM Service Menu > Set Alarms:
• S219 REM Sensor Alarms / Init Delay: Com Set: 180sec
(Com Set means “common setpoint” for delaying all sensors.)
• S220 High and Low Remote Temperature Setpoints: 90°F / 55°F
(for remote 2T rack sensors)
NOTE: The system must use V4 IS cards (Unity) to report temperature alarms remotely.
6.2.3 Prevent Emergency Fan Activation by Warnings
To prevent warnings from activating the emergency fans, make this setting in the iCOM Service Menu >
Set Alarms:
S232: Warning Activates Alarm Relay: NO
Once the critical threshold is surpassed, the iCOM would generate an alarm and activate the emergency
fans.
NOTE: If a Warning occurs, it is recorded in the Event Log.
6.2.4 Control Cooling Calculation by Remote 2T Rack Temperature Sensor Readings
The Liebert iCOM automatically reverts to using the supply air temperature sensor in the base plenum if
it loses communication with the remote rack sensors. The return air temperature sensor should never be
used as a controlling sensor in the SmartRow DCR.
Make these settings in the iCOM Service Menu > Remote Sensors:
• Remote Sensors: Verify that all remote sensors installed on the front (cold) side of the racks are
set to “Control” not “Reference.”
• SB02: Max (This takes the average or maximum of the two temperature probes per 2T).
• SB03: Max (This takes the average or maximum of all the 2T sensor readings).
NOTE: Verify that the 2T temperature sensors are in an active air stream. Do not place the probes in
front of blanking plates. Additional 2T temperature sensors can be installed in the SmartRow DCR for
monitoring, such as determining the temperature in the rear of the racks. These sensors must be setup
as “Reference.”
Vertiv | SmartRow DCR Installer/User Guide | 56