Vertiv | Liebert PEX+Chilled Water | User Manual 69
iCOM Controller Operation
Figure 4-11 Teamwork Mode 3
4.10.2. Standby – Rotation
This function can be performed in any teamwork mode, including NO Teamwork. One or more units can be
defined to be Standby; the normal status of standby units is Standby O (fan O).
In case one regular unit has an alarm that is defined (to be defined in the alarm configuration), to switch On a
standby unit, the faulty unit will switch O and the standby unit will switch On. If the next unit has an alarm, the
next standby unit will be started. If no more standby units are available, the unit with a non-critical alarm that
permits unit operation will be switched On again (water detection, fan alarm, fire alarm etc. will not permit unit
restarting). The standby function can be rotated daily (setting the time), weekly (setting the day of the week and
time) or monthly (setting the first weekday of the month and time).
The rotation can be performed with a selectable number of units: if rotation parameter is set to ‘1’ then standby
rotation is from 1-2 to 2-3 in a 4 units configuration; with two standby units, if rotation parameter is set to ‘2’ then
rotation is from 1-2 to 3-4 in the same configuration.
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