This article applies to the following CoolMaster products
CoolMaster
CoolMasterPro
CoolMasterNet
CloudBox
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 the limitations, specified below.
HVAC connectivity
Line #
Manufacturer
Interface
Terminals
Polarity
Max IDU (manufacturer limitation)
Max ODU (Manufacturers limitation)
L1, L2
Daikin
DIII-NET
F1, F2
None
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
1, 2
None
160
10
Haier
P, Q
None
64
16
L4,L5,L6,L7
LG
Inter A Inter B
+ -
128
-
Gree / GMV4
A, B
+ -
16
4
Mitsubishi Heavy
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
Tica
A2,B2
+ - GND
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
* 64 Group addresses or 128 IDUs
** 10 Systems
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.
