Gree ME20-24/D1(T) Owner's Manual
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Gree ME20-24/D1(T) Owner's Manual

Gree ME20-24/D1(T) Owner's Manual

Intelligent controller
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Owner's Manual
Original Instructions
Intelligent Controller
Model:
ME20-24/D1(T)

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Summary of Contents for Gree ME20-24/D1(T)

  • Page 1 Owner's Manual Original Instructions Intelligent Controller Model: ME20-24/D1(T)
  • Page 2 To Users Thank you for selecting Gree product. Before installing the product, please read this instruction manual carefully to know well about the product and use it correctly. In order to install and use the product correctly to reach the expected...

  • Page 3: Table Of Contents

    5.4 DIP Switch ................5 6 Application ................. 7 6.1 Long-distance Monitor System ..........7 6.2 Power billing of Gree multi VRF ..........9 7 Product Installation ............9 7.1 Product Size and Spatial Size for Electric Control Cabinet Installation ..................9 7.2 Selection of Communication Wire Material ......
  • Page 4 VRF. When you have decided to use the power billing function of this system, it is deemed that you’ve learnt and accepted the following items: （1） Gree Electric Appliances Inc. of Zhuhai reserves all rights for the final interpretation of this calculation method.
  • Page 5 ⑤ Make sure the indoor unit will not be powered off arbitrarily. Otherwise other indoor units that are in the same system will not function normally (poor cooling, malfunction of lack of indoor unit). ⑥ Normal working conditions for controller: a.
  • Page 6 ⑤ If the unit or controller needs to be replaced, it’s necessary to confirm whether matched resistance is connected to the unit or controller. Configure the new unit or controller according to the confirmed results. ⑥ If any change is made to the unit, for instance, adding or reducing units, controller must be restarted.

  • Page 7: Safety Notices (Please Be Sure To Abide)

    Intelligent Controller 1 Safety Notices (Please be sure to abide) WARNING: If not abide strictly, it may cause severe damage to the unit or the people. NOTICE: If not abide strictly, it may cause slight or medium damage to the unit or the people.

  • Page 8: Function And Parameter

    Intelligent Controller WARNING! would result in a fire hazard or even damages to this device. For PLUGGABLE EQUIPMENT, the socket-outlet shall be installed near the equipment and shall be easily accessible. Do install this device inside the electric control cabinet which is located indoor and then is locked. Do install this device where it will not be subject to the electromagnetic interference or heavy dust.

  • Page 9: Parts And Assembly

    Intelligent Controller first, otherwise, the controller will not work normally. After altering the TCP/IP parameter, restart the controller, the alteration will take effect. 4 Parts and Assembly This kit includes the following parts. Please check before installation. Controller 1 set Instruction manual 1 set Wiring terminal...

  • Page 10: Led Display

    Intelligent Controller 5.1.3 Communication Interface CAN comm port: connect it to the AC unit through the 2-core communication line to realize the communication between Controller and the AC which adopts CAN protocol. RS485-1 comm port:this device will not use this interface temporarily. RS485-2 comm port: this device will not use this interface temporarily.

  • Page 11: Button

    Intelligent Controller power) and communication indicator (CAN and RS485). The following table is the working status of each indicator. When receiving the data of equipment (eg. AC unit) which connects to Controller, it blinks. When transmitting data to the equipment (eg. AC unit) which connects to Controller, it blinks.
  • Page 12 Intelligent Controller 5.4.2 The 1st Lever of Functional DIP Switch—CAN2 Bus Matched Resistance Setting NOTICE! Main control ODU or Controller at the top/end of CAN2 bus must be with matched resistance; otherwise the communication might be wrong! ※ CAN2 bus: Specific meaning shall refer to the specification in Fig Internet topological graph.

  • Page 13: Application

    5s to restore the default information of factory setting of the Controller. 6 Application 6.1 Long-distance Monitor System The controller(ME20-24/D1(T)) is equipped with the monitoring function for multi VRF. It realizes the monitor of Intelligent Remote Eudemon System on CAN bus Gree multi VRF through controller(ME20-24/D1(T)).
  • Page 14 Intelligent Controller 6.1.1 Internet Topological Graph Fig. 6.1 Network topology topological graph statement: CAN2 bus network: L1 shown in Fig. 6.1 is CAN2 bus, which consists of controller and master outdoor unit of system; one CAN2 network can connect to 16 sets of outdoor units and 255 sets of indoor units.

  • Page 15: Power Billing Of Gree Multi Vrf

    Note: L3 in Fig. 6.1 is standard netting twine, L1 and L2 are twisted-pairs. 6.2 Power billing of Gree multi VRF The controller(ME20-24/D1(T)) provides the function of power billing of multi VRF. Please refer to Chapter 8 for concrete description and debugging method for power billing function.
  • Page 16 Intelligent Controller Notice for installation and operation: （1） Ensure the specification of power input. Otherwise, Controller can’t work normally or even be damaged. （2） Ensure the dial code setting of Controller is correct. Otherwise, there will be communication malfunction. （3） Ensure that the communication cord has connected to the correct interface. Otherwise, there will be communication malfunction.

  • Page 17: Selection Of Communication Wire Material

    Intelligent Controller 7.2 Selection of Communication Wire Material 7.2.1 Material Selection for Communication Iine （1） Model selection of Controller and Intelligent Remote Eudemon system communication line shall use standard Ethernet communication line, the length of network cable between Controller and router (computer, switchboard, etc.) shall not exceed 80m.
  • Page 18 Intelligent Controller （2） Communication connection between Controller and AC units (n is the quantity of ODU system, n ≤ 16) Fig. 7.4 Connecting method of Controller NOTICE! All communication connection lines under Controller must be in series connection, star connection shall not be adopted.
  • Page 19 Intelligent Controller 7.2.3 Communication Connection Configuration （1） Communication line connection between Controller and PC: Connection diagram between Controller and PC user side: 1) Adopt cross connection network cable, Controller shall directly connect to PC. Fig. 7.5 Controller connects to personal computer directly 2) Adopt parallel network cable, Controller shall go through router to connect to PC.
  • Page 20 Intelligent Controller （2） Communication line connection between Controller and AC units: When Controller is connected to main control unit of ODU, ODU with the address dial-up of 0 must be connected. D1D2 G1G2 ON ON Subordinate Main control …… Unit of ODU Unit of ODU Fig.
  • Page 21 Intelligent Controller After inputting the user name and password, click the arrow to the configuration interface; set the IP parameter of controller in fig 7.10; set equipment information in fig 7.11; set server information in fig 7.12. Fig. 7.9 Setting interface of network parameters...
  • Page 22 Intelligent Controller Fig. 7.10 Setting interface of equipment information...
  • Page 23 Intelligent Controller Fig. 7.11 Server setting page Settable parameters:controller IP address (IP address setting: master unit No. can’t be 0 for all; 0 for all means the entire network, e.g. 192.168.1.0; master unit No. can’t be 1 for all; 1 for all means the broadcast address, e.g. 192.168.1.255, the user is not recommended for setting, you might fail to visit the controller interface after setting), controller subnet mask, defaulted gateway of controller, equipment name, equipment ID(0~255), network type, service IP, service port (defaulted value...

  • Page 24: Power Billing Function

    KWH meter (the indication on the KWH meter) plus the induction ratio of mutual inductor. 8.1 Composition of the system Parts name Quantity Configuration method GREE Intelligent Remote As required Standard supply Eudemon(V2.0 and above) ME20-24/D1(T) Several...

  • Page 25: Network Topological Graph

    Intelligent Controller themselves. Be sure that they are in compliance with the specified technical requirements. ※The KWH meter should be meter of mutual inductance. Power consumed by the unit is the electricity quantity detected by the meter (reading of the meter) *mutual-inductance ratio of current transformer.

  • Page 26: Connection Of Communication Cables

    Intelligent Controller Statement on network topological method : L1: L1 in the above diagram is RS485 bus, which is used for communication between KWH meter and controller. Total length of L1 should not exceed 500m. The number of KWH meters connected with L1 should not exceed 16. L2: L2 in the above diagram is CAN2 bus, which is composed of controller and the master outdoor unit.
  • Page 27 Intelligent Controller （1） Communication between controller and the computer that is installed with Intelligent Billing Eudemon. （2） Communication between controller and air conditioners. （3） Communication between controller and KWH meters. 8.4.1 Selection of Materials for Communication Cables （1） Select communication cable for controller and KWH meter Communication cable for Cable size...
  • Page 28 Intelligent Controller （1） Communication connection between controller and KWH meter. Fig 8.2 Connection method of KWH meter The number of KWH meters connected to one controller should not exceed 16.
  • Page 29 Intelligent Controller （2） Communication connection between controller and air conditioners. “n” refers to the number of outdoor systems. n≤16. 8.4.3 Communication connection configuration of controller and KWH meter Fig 8.3 Communication connection of controller and KWH meter...

  • Page 30: Function Debugging

    Intelligent Controller Step 1: Connect the RS485-1 communication interface A+ and B- port of the smart controller to the A and B port of KWH meter; Step 2: Conduct serial connection with communication cord 485 for the KWH meter in a Intelligent Remote Eudemon System, as is shown in Fig 8.3.
  • Page 31 Intelligent Controller （2） Before the intelligent controller is energized, all KWH meters must work normally, and the RS485 bus of the KWH meter must be connected to the RS485-A interface of the intelligent controller; （3） Before the intelligent controller is energized, please ensure that all units are powered on;...

  • Page 32: Appendix A: Selection Of Kwh Meter & Current Transformer

    Intelligent Controller 9 Appendix A: Selection of KWH Meter & Current Transformer Selection scheme 1 KWH meter model: ENTES EPR-04S-96 Parameters of ENTES EPR-04S-96 （1） Measure the 3-phase voltage and electric current. Calculate the forward and reverse active electricity quantity. （2）...
  • Page 33 Intelligent Controller （2） Working voltage: 208-240V AC. （3） Frequency: 50/60Hz. （4） CT Input: 0.333Vac. （5） Communication port: RS-485 port. （6） Communication protocol: Modbus RTU. Current transformer: Accu CT ACTL-0750-xxx Parameters of Accu CT ACTL-0750-xxx. （1） Accuracy: 0.75%. （2） Frequency: 50 or 60 Hz. （3）...
  • Page 34 Intelligent Controller （1） Rated voltage & frequency: 630V, 50Hz. （2） Grade of accuracy: 1. （3） Secondary rated current: 5A. （4） Rated output load: 5VA. （5） Rated primary current of current transformer: Select according to table 3. Please select a proper current transformer based on local using environment and actual engineering condition (working condition, installation location).

  • Page 35: Attachment B Tcp/Ip Setting

    Intelligent Controller （2） Grade of accuracy: 1. （3） Secondary rated current: 5A. （4） Rated output load: 5VA. （5） Rated primary current of current transformer: Select according to table 4. Please use the current transformer made by a well-known brand with high reliability.
  • Page 36 Intelligent Controller （3） Left click ”Network and Sharing Center” in the following picture. See ② in the picture below. Fig 8.2 Network and Sharing Center （4） Find “Ethernet” in the following picture. Left click “Ethernet” and enter the interface of “Ethernet Status”. See ③ in the picture below. Fig 8.3 Ethernet settings selection...
  • Page 37 Intelligent Controller （5） Left click “Properties” in the following picture and enter the interface of “Ethernet Properties”. See④in the picture below. Fig 8.4 Ethernet attribute selection...
  • Page 38 Intelligent Controller （6） Left click “Internet Protocol Version 4(TCP/IPv4)”. See ⑤ in the picture below. Then left click “Properties” as shown in the picture to enter the interface of “Properties of Internet Protocol 4(TCP/IPv4)”. See ⑥ in the picture below. Fig 8.5 Internet Protocol Version 4 (TCP/IPv4) Properties...
  • Page 39 Intelligent Controller （7） When you are at the interface of “Properties of Internet Protocol Version 4(TCP/IPv4)” as shown below, change the IP address, subnet mask, default Controller as required (address of network equipment for connecting Controller must be the same as the network address of Controller ME20-24/D1(T)).

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