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Haier VRF – CoolMaster - Outdoor line connection for Service Data

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This article applies to the following CoolMaster products:

  • CoolMaster
  • CoolMasterPro
  • CoolMasterNet
  • CloudBox

Haier VRF – Outdoor line connection for service data 

Maximum systems per line: 1

Maximum indoor per line: 64

  • Supported device line number for control: L1,L2
  • Supported lines for service data L4,L5,L6,L7 (using L6 require dip switch change)
  • No line polarity required
  • Cable type – Follow Haier installation instructions
  • Set CoolMaster's L1, L2 line type:  HA
  • Set CoolMaster's Service lines type to:  HAM
  • Service lines need a special scan terminal command to define the VRF revision.
  • Set dip switch according to the drawing
  • Each Indoor unit must be set with unique address
  • Follow Haier instruction on how to address the units

 

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