Vertiv | Liebert® CRV4 | User Manual 5
Introduction
1.5. Options
1.5.1. Air Pressure Dierence Switch
The switch is used to detect if the unit lter is clogged, and send alarm signals to the control board.
1.5.2. Water Leakage Detection Kit
The kit is used to detect water-under-oor, and send alarm signals to the control board, if detects water under
oor condition.
1.5.3. Remote Temperature Sensor Kit
The sensor is used to monitor the temperature of other devices in the equipment room, and the temperature
can be used as the control temperature of the unit.
1.5.4. Monitoring Card
The RDU-SIC monitoring card is used, and it provides an RJ45 port and a USB port.
• Using the Web browser to monitor your intelligent equipment and the environment through the Web server
function provided by the SIC card.
• Using the Network Management System (NMS) to monitor customers’ intelligent equipment and the
environment through the SNMP agent function provided by the SIC card.
• Using the equipment room management software (RDU-Manager) to monitor customers’ intelligent
equipment and the environment through the TCP/IP port provided by SIC card.
• Using the centralized management software (Nform) to monitor customers’ intelligent equipment through
the Vertiv Server function provided by the SIC card.
1.5.5. Dual Power Module
Liebert® CRV4 unit is equipped with a highly eicient dual power module with minimum electrical losses. The
unit has built-in two power modules as a back up to each other to ensure seamless operation, thereby providing
reliability and stability to the system.
If the CR025 unit is equipped with top piping connection arrangement, then dual power module option is not
available in the unit; for more details contact Vertiv representative.
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