Vertiv SmartRow DCR, Installer/User Manual

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6 LIEBERT ICOM™ CONTROLS SET-UP
The Liebert iCOM provides control of the Liebert PDX/PCW and monitoring of conditions in the DCR
racks. If more than one SmartRow DCR is installed, the Liebert iCOM’s may be networked so that each can
be monitored or controlled from a single location.
Field-wiring is required for the Liebert iCOM, even if it is part of a stand-alone unit, as in a single SmartRow
DCR. Refer to the Liebert PDX/PCW installation manual, SL-19800, or to the Liebert iCOM user manual,
SL-18835. The manuals are available at http://www.VertivCo.com/en-us/support/.
The Liebert PDX/PCW with Liebert iCOM has Liebert IntelliSlot™ slots for use with optional
communication card:
• IntelliSlot UNITY-DP card
Each card employs the Vertiv™ Protocol to monitor and manage a wide range of operating parameters,
alarms, and notifications. The cards communicate with Vertiv™ software tools & services, including Trellis®,
Liebert SiteScan Web™ and Liebert Nform®. Visit www.VertivCo.com for the latest supported protocols.
The Liebert iCOM must be configured as stated in this section for the SmartRow DCR to operate properly.
These instructions are applicable to SmartRow DCR systems with one or two Liebert PDX/PCW units and
all cooling-system types (air-cooled, water/glycol and chilled water). These configurations must be made
on each cooling unit, even if the units are networked, because not all settings are shared. These Settings
are factory set, but the this documentation illustrates how to set them if anything were changed or was
malfunctioning for some reason.
6.1 iCOM Installation Prerequisites
• System fully assembled according to this document.
• 2T temperature sensors installed on the front (cold side) of each rack and the supply air
temperature sensor(s) properly located in the supply air stream.
• If the SmartRow DCR has two Liebert PDX/PCW cooling units, verify that they are connected
and communicating to each other via an Ethernet switch.
6.2 Liebert iCOM Setup for all SmartRow DCR Types
You will need to enter the Level 2 iCOM control password, 5010, to change parameters.
Make these settings in the Liebert iCOM Service Menu > Setpoints:
• S102 Temperature Control Sensor: Remote Sensor
• S103 Temperature Setpoint Act / Set: 65°F (this can be adjusted per customer preference)
• S104 Temperature Control Type: PI
• S106 Temp Proportional / Integral: 25°F/ 5 min.
NOTE: After the IT equipment is loaded and operational, if the SmartRow DCR system cooling capacity
is responding too slowly to heat load changes, decrease the Integral time, which dampens Liebert
iCOM’s rate of change). We recommend that you adjust the Integral time before adjusting the
Proportional setting.
• S108 AutoSet Enable: No
• S109 Temperature Deadband: 2°F
• S110 Supply Limit Enabled/Setpoint: No
Vertiv | SmartRow DCR Installer/User Guide | 55