4 Chapter 1 Overview
Liebert CRV+ Series Air Conditioner User Manual
Remote Monitoring Software
The Liebert CRV+ series air conditioner adopts Modbus protocol. Through the configured RS485 port or TCP/IP port,
the Liebert CRV+ system can communicate with the host computer and receive the control of the host software.
1.6 Environmental Requirements
1.6.1 Operation Environment
See Table 1-1 for details.
Table 1-1 Operation environment requirement
Item Requirement
Ambient temperature
Indoor 18°C ~ 40°C
Outdoor -34°C ~ +45°C
Protection level (indoor unit) IP20
Altitude < 1000m. Above that, please contact Emerson Network Power Co., Ltd.
Operation voltage range (380 ~ 415)V ± 10%), 3N ~ 50Hz
1.6.2 Storage Environment
See Table 1-2 for details.
Table 1-2 Storage environment requirement
Item Requirement
Storage environment No protection against weather
Ambient humidity < 95%RH
Ambient temperature -33°C ~ +70°C
Storage time
Total transportation and storage time should not exceed six months. Otherwise, the performance
needs to be re-calibrated
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