Specifications

13InRow RC Operation and Maintenance
Set Up Cooling Group Configuration
The cooling group configuration determines how the cooling group should operate.
Caution: The settings in the Cooling Group Configuration menu are defined by the field
service representative when the cooling group is commissioned. Only qualified service
personnel should make changes to these settings.
Configure the cooling group
Path: Main > Configure Group
The Configure Group menu settings identify the number of cooling units installed in this cooling group
and the physical arrangement of those cooling units.
Num Units. Indicates the number of cooling units in this cooling group. Up to 12 cooling units can be
joined together to work as a single cooling group.
Type. Set the rack deployment strategy for the cooling units of this cooling group.
• In-Row: Air flow is horizontal to allow in-row operation of the cooling. The loads share a
common open cold aisle.
• RACS (Rack Air Containment System): Air flow in the enclosure is controlled by a ducting
system fitted to the enclosure. This is not a sealed system.
• HACS (Hot Aisle Containment System): Air flow in the room is controlled by enclosing the hot
air aisle. The loads share an enclosed common hot aisle. This is not a sealed system.
%Glycol. The percentage of glycol used by the cooling group to cool the environment that affects how
cooling output is reported. Only qualified service personnel should make changes to this setting.
%Fan Spd Max. The maximum fan speed of the Group. The default is 100%, and is adjustable down to
60%.
Note: Reducing the default maximum fan speed percentage may lower the sound level of
operating equipment. This reduction will result in reducing total cooling capacity.
Identify the cooling unit
Path: Main > Set Identification
The Set Identification menu settings identify the name and location of cooling units installed in this
cooling group.
Unit Id. Assign an identification number, from 1 through 12, to this cooling unit.
User Defined Name Assign a name of up to 19 alphanumeric characters to this cooling unit.
User Defined Loc Enter the location, up to 19 alphanumeric characters, of the cooling unit.
Configure Modbus
Path: Main > Configure Modbus
Use the Configure Modbus menu to set up communications between the cooling unit and the building
management system.
Modbus. Enable or disable Modbus.
Target Id. Each Modbus device must have a unique target identification number. Enter a unique number
for this cooling unit.
Baud Rate. Choose either 9600 bps or 19200 bps.