Vertiv Liebert iCOM DP400/500, Installer/User Manual

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The U2U network has built in fail over conditions that are automatically employed when standby units have been assigned:
• During single cooling-unit or component failure, a standby unit is activated to replace the failed unit.
• Alarm event causes unit shutdown, a stand-by unit is activated. If the activated unit also has an alarm event, the
next available stand-by unit is activated. If all units have an alarm event, and no more stand-by units are
available, a unit with a non-critical alarm event will be activated.
NOTE: Redundancy is employed if units are assigned to standby regardless of the teamwork mode selected, including
no teamwork.
6.3.1 To Set up Lead/Lag Operation
1. Touch , then > BMS & Teamwork Setup > Teamwork / Standby . The TEAMWORK/STANDBY panel
opens.
2. Touch Standby . The STANDBY CONTROL panel displays.
3. Adjust the settings, then touch Save .
• Touch Cancel to discard the changes.
Standby Options
High Temperature Threshold
Temperature at which all standby units are activated.
Number of Standby Units
Number of units in standby mode.
Standby Fan Timer at Reheat/Humidification
Length of time in minutes that the fan continues to operate after the cooling unit enters standby or sleep mode if
reheat or the humidifier were operating when unit powered off.
Start All Standby Units by High Temperature
When enabled, all units are activated to cool when a high temperature alarm occurs.
6.4 Setting a Rotation Schedule
You can set a rotation schedule to switch operating and standby units to manage run time of the cooling units.
1. Touch , then > BMS & Teamwork Setup > Teamwork / Standby . The TEAMWORK/STANDBY panel
opens.
2. Touch Unit Rotation . The UNIT ROTATION CONTROL panel displays.
3. Adjust the settings, then touch Save .
• Touch Cancel to discard the changes.
Vertiv™ | Liebert® iCOM™ Installer/User Guide
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