Numerous Features
Offers numerous enhanced features and benefits for streamlined programming; zone temperature control options; and fail-safe prevention.
dara-4g2 is the latest Relay Auto Changeover offering from Data Aire – that has the same, dependable data center monitoring and control capabilities as its predecessor, the DARA-4, but now offers:
Additionally, a sleek new design incorporates soft buttons and a LCD control panel for user-friendly programming.
SALES LITERATURE
WIRING DIAGRAM
INSTALLATION, OPERATION & MAINTENANCE MANUAL
UNIT ROTATION
A main function of the dara-4g2 is to ensure a balance of runtimes across all units. The rotation duration can be set for 4, 8, 12 or 24 hours; or 7, 14 or 30 days. All information is projected on an easy-to-read 4-row, 22-character liquid crystal display (LCD).
BACK-UP CAPABILITY
A critical component of any computer room is the back-up capabilities. The dara-4g2 offers three different standby logics:
FAIL-SAFE SWITCHING
To ensure a cool data center, the dara-4g2 is equipped with a “fail safe” design. Typically, when the controller receives an alarm, all contacts are closed, which makes all cooling units operational. With the fail-safe option, should the controller fail, all units would be placed in operation ensuring the data center remains cool.
ZONE TEMPERATURE CONTROL (OPTIONAL)
The addition of a temperature sensor the dara-4g2 can be programmed to control the temperature in the room to a desired set point. This feature allows you to only operate the number of units necessary to maintain the desired temperature, resulting in the most efficient operation possible.
EASY PROGRAMMING
dara-4g2’s LCD control panel with 4 row, 22 character display, makes programming a breeze. Programming the controller is similar to Data Aire’s state-of-the-art dap4 microprocessor controller. The display also incorporates soft buttons and provides a user-friendly menu to navigate through the menu system and be ready to function. This controller also has an audio alarm with selectable sound patterns, to alert you to any potential problems.
BMS CAPABILITY
dara-4g2 can be equipped with an optional network communication card that allows for an interface with BMS or BAS systems using Modbus RTU, Modbus TCP/IP, BACnet MSTP, and BACnet IP.
SPECIFICATIONS