China Mobile Data Center, Henan, 2018

China Mobile DC 1 editedSolution: L-WEB Building Management

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.

Green technologies for environment protection

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.

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Data Center SubsystemMonitoring and ControlApplications
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 status
  • Elevator 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, L-WEB

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