Vertiv Liebert iCOM User Manual

2. At each unit in the group:
• Touch , then > Setpoints > Temperature Control.
• In Temperature Control Sensor, select Supply Sensor, then touch Save.
• In Temperature Setpoint, select the setpoint based on the cooling unit’s area of influence, then touch Save.
3. At the master unit:
• Touch , then > Setpoints > Fan Control.
• In Fan Control Sensor, select Remote Sensor, then touch Save.
The other units in the group are set automatically.
• Touch , then > BMS & Teamwork Setup > Teamwork / Standby > Teamwork Mode.
• In Teamwork Mode, select 3 Optimized Aisle.
• In Teamwork is based on, select Maximum or Average, then touch Save.
Teamwork mode 3 is set.
4. Monitor operation of the cooling units and adjust setpoints and control bands as necessary.
6.3 Assigning Cooling Units to Standby (Lead/Lag)
Standby assigns some units to operate while others are on standby, meaning a unit is idle but ready to become active in the
event of an alarm condition in one of the operating units or based on a rotation schedule.
When a unit is in standby mode, fan(s) are off and no cooling occurs. In multiple cooling unit systems, assigning units to
standby lets you:
• Configure redundancy in case of failure scenarios (standby).
• Manage cooling unit run time (lead/lag). See Setting a Rotation Schedule on the facing page .
• Modulate for very low loads to full design load (to be temperature reactive) by cascading activation of standby
units (configured when setting up teamwork mode).
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 shut down, a standby unit is activated. If the activated unit also has an alarm event, the
next available standby 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.
6 Teamwork, Standby and RotationforCoolingUnits
106
Vertiv™ Liebert® iCOM™Installer/User Guide

Vertiv Liebert iCOM Specifications

General

Brand	Vertiv
Model	Liebert iCOM
Category	Control Unit
Language	English