The China Mobile Data Center in the Zhengzhou Experimental Comprehensive Zone is China Mobile's largest communications production and information service base in the central plain region. On an aera of over 207,000 square meters there are 6 server room buildings, 3 power centers, 2 support and maintenance centers, and 2 IoT centers. For computing capacity, it has 16,900 server racks with 150,000 servers to meet the information needs of Henan Province well into the year 2030. LOYTEC was honored with the Energy Globe Award for this project. In addition to cloud computing services, the data center has explored a variety of green technologies for environment protection. LOYTEC’s BMS provides an array of open interfaces to connect and monitor diverse devices in real time for greater energy-savings.
China Mobile (Henan) Data Center has adopted the following chiller room group control solutions to achieve energy management and savings by more than 22.5%:
- Based on actual demand, chiller unit operation can be automatically adjusted: The LOYTEC BMS automatically calculates cooling load required for intra-building air-conditioning, and adjusts optimal number of operating chiller units and active cooling towers to meet specific energy-saving goals.
- Intelligent device coordination for equipment protection: The LOYTEC BMS can operate multiple chiller units based on designated start/stop sequences, eliminating failure due to wrong sequences. If a pump fails, a standby pump automatically runs, keeping vital operations uninterrupted.
- Real-time alarm notification for intelligent maintenance and operation: The LOYTEC BMS monitors various temperature and pressure parameters. Once a fault is detected, an alarm is issued for timely response and troubleshooting.
| Data Center Subsystem | Monitoring and Control | Applications |
|---|---|---|
| Refrigeration room group control system | Refrigeration machine operating parameters
Refrigeration room group control scheme |
Modbus TCP is utilized to feed refrigeration parameters to the BMS. Demand calculation for a variety of cooling and control functions |
| Air supply and exhaust system | Scheduled control for FCU start/stop Parameter monitoring & alarm notification | Based on work and holiday schedules, auto calculation of hours for timely maintenance;
Relay contact status detection for FCU overload, with overload alarm notification. |
| Water supply and drainage system | Automatic water level control Parameter monitoring & alarm notification | Automatically start (stop) the sump pump.Auto-calculate operation hours for timely maintenance and assign active or backup pump. Automatic alarm when sump too high. |
| Elevator system | Elevator operation statusElevator fault alarm Elevator up/down status | ModBus communication protocol connects elevator system data to LOYTEC BMS for real-time monitoring of elevator status Alarm is issued for device fault or emergency. |
| Air condition system | MAU (Makeup Air Unit) operating parameters | I/O points are utilized to link the MAU data to the BMS for MAU monitoring. |
Interesting Facts
Devices: L-INX, L-IOB, LWEB-900
| Location | Zhengzhou Airport Economy Zone, Henan |
| Number of nodes | 661 I/O points |
| Networking protocols | BACnet/IP, LonWorks FT10, Modbus RTU, Modbus IP |
| Partner Company | Delta Greentech, China |
| LOYTEC products | 1 x LWEB-900 Integrated Building Management System 4 x LINX-153 Automation Server 24 x LIOB-150, 31 x LIOB-151, 7 x LIOB-152 I/O Modules 8 x LT-03 Network Terminators |
| LOYTEC tools | LINX-Configurator, LVIS-Configurator, L-LOGICAD, LWEB-802/803 |