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CMNET - HVAC Interfaces

Yoram Dagan
  • Updated

CoolMasterNet supports various HVAC systems, that have to be connected to designated lines L1-L8. These lines support single or multi brand HVAC, based on limitations, specified below.

 

HVAC connectivity 

None

Line # Manufacturer Interface Terminals Polarity Max IDU (manufacturer limitation) Max ODU (Manufacturers limitation)
L1, L2 Daikin DIII-NET F1, F2   64 10
Sanyo S-NET U1, U2 None 64 16
Panasonic   U1, U2 None 64 16
Toshiba TCC LINK U1, U2 None 64 16
Mitsubishi Electric M-NET M1, M2 None 50 10
Hitachi H Link, H Link 1, 2  None 160 10

L4,L5,L6,L7

LG   Inter A Inter B + - 128 -
Gree / GMV4   A, B + - 16 4
Mitsubishi Heavy SuperLink / New SuperLink A, B + - 128 10
Samsung   F1F2 / R1R2 + - 64 10
Midea   X, Y, E + - GND 64 16
Kentatsu   X, Y, E + - GND 64 16
Trane   X, Y, E + - GND 64 16
Chigo   X, Y, E + - GND 64 16
Bluestar   A,B + - 64 10
L8 via USB Host Port Fujitsu (external LON USB adapter required) LON (ANSI/CEA- 709.1-B) X1, X2 None 128 10
Gree GMV5 GMV6 USB Network interface G1, G2 None      64 16

 

HVAC line interoperability

  L1 L2 L4 L5 L6 L7 L8
L1**   VV V   V V V
L2** V   V V   V V
L4 V V   V V V V
L5**   V V   V V V
L6* ** V   V V   V V
L7* V V V   V   V
L8 V V V V V V  

 

Limitations:

  • Total number of supported indoors (for all HVAC Lines) can not exceed 255 units
  • *When DIP switches P1 and P2 are "ON", lines L6 and L7 cannot be used as separated lines. In this case the polarity on the HVAC cable connected to L7 will be automatically detected.
  • **Line L2 can not be connected simultaneously with line L6 and line L1 can not be connected simultaneously with line L5.

 

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