APC ACRD500 Installation Manual download pdf (Page 29)

21InRow RD Operation and Maintenance

Type. Set the rack deployment strategy for the cooling units of this cooling group.

• In-Row: Air flow is not ducted. Hot aisle air is cooled, then shared by all loads in the row.

• RACS: (Rack Air Containment System). Air flow in the enclosure is controlled by a ducting

system fitted to the enclosure.

• 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.

Identify the cooling unit

Path: Main > Set Identification

The Set Identification menu contains settings that identify the name and location of the cooling unit.

Unit Id. Assign a unique identification number to this cooling unit. Range: 1 through 12.

Name. Assign a Name, up to 40 alpha-numeric characters, of the cooling unit..

Location. Enter the Location, up to 40 alpha-numeric characters, of the cooling unit..

Note: Only the first 19 characters (of the 40 that are possible to enter) will display on the

display interface. You must use Telnet, the Control console or the Web to access all 40

characters. See page 40 and page 38 for more information.

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 communication protocol.

Target Id. Each Modbus device must have a unique target identification number. Enter a unique number

for this cooling unit.

Baud Rate. Set either 9600 bps or 19200 bps.

Fixed settings: 8 data bits, no parity, 1 stop bit. These settings cannot be modified.

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APC ACRD500 Installation Manual Page 29