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Contents

User Notice ................................................................................................................ 1

Chapter 1 Installation ............................................................................................... 2

1 Introduction to System .......................................................................................... 2

2 Introduction to Parts ............................................................................................. 4

2.1 Parts List ......................................................................................................................... 4

2.2 Gateway ME30-24/D1(BM) ............................................................................................. 4

2.3 Introduction to optical isolation convertor ........................................................................ 5

2.4 Introduction to optical isolation relay ............................................................................... 7

3 Product Installation ............................................................................................. 10

3.1 Product Size.................................................................................................................. 10

3.2 Spatial Size for Electric Control Cabinet Installation ..................................................... 10

4 Gateway and BMS adopt Modbus RTU communication connecting method 10

4.1 Selection of communication material ............................................................................ 11

4.2 Connecting method of communication between gateway and air conditioner .............. 11

4.3 Setting of communication connection ........................................................................... 12

5 Gateway and BMS adopt Modbus TCP or BACnet protocol communication

connecting method ................................................................................................ 13

5.1 Selection of communication cable material ................................................................... 13

5.2 Communication Connection Method ............................................................................. 13

5.3 Communication Connection Configuration ................................................................... 14

5.4 Gateway configuration: ................................................................................................. 15

Chapter 2 Commissioning Operation ................................................................... 17

1 Commissioning of hardware .............................................................................. 17

1.1 DIP Switch .................................................................................................................... 17

1.2 LED Display .................................................................................................................. 19

1.3 Button............................................................................................................................ 19

2 Commissioning of communication .................................................................... 20

2.1 Communication commissioning with air conditioning equipment .................................. 20

2.2 Communication commissioning with BMS equipment .................................................. 20

2.3 Troubleshooting ............................................................................................................ 22

Chapter 3 Maintenance .......................................................................................... 25

1 Troubleshooting for common errors of BMS .................................................... 25

Attachment A TCP/IP Setting ................................................................................. 26

Gree VRF User Manual

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