Haier VRF – Using Modbus Adapter

This article applies to the following CoolMaster products:

  • CoolMaster
  • CoolMasterPro
  • CoolMasterNet
  • CloudBox

Haier VRF – Indoor line connection

Maximum systems per line: 16

Maximum indoor per line: 64

  • Supported device line number: 
    L7 (Default) , L4 , L5 , L6 (using L6 require dip switch change)
  • No line polarity required for L7 if L6 is not enabled
  • Cable type – Follow Haier's installation instructions
  • Set line type in the CoolMaster device to:  HAM
  • Set dip switch P according to drawing , dip switch Q,R,S are not applicable to lines 3,4,5,6,7,8
  • Each system and Indoor unit must be set with unique address
  • Follow Haier's instruction on how to address the units
  • Service data doesn't exist on the adapter. For service data, refer to the  "Haier VRF – CoolMaster - Outdoor line connection for Service Data" article

 

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