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M‐Thermal Split
2.5 DIP switch setting and wire connecting for Modbus function
The rotating coded switch S3(0‐F) on the main control board of hydraulic module is used for setting the modbus
address. By default the units have this coded switch positioned=0, but this corresponds to the modbus address 16, while
the others positions corresponds the number, e.g. pos=2 is address 2, pos=5 is address 5.
Figure 4‐2.4: Rotating switch
Figure 4‐2.5: Connection
Hydronic box
Figure 4‐2.6: Wiring
1
A
A
38
Wired controller
5E
E
4Y
Y
3X
X
2B
B
1A
A
5E
E
4Y
Y
3X
X
2B
B
1A
A
.
.
.
.
.
.
XT6
2
3
4
5
B
X
Y
E
B
X
Y
E
H2
Wired Controller
H1
Midea CAC Confidential
A+ B- E
H1 H2
H1 H2
Max. 16 units
Input Voltage(A/B)
Wiring size
E
A+
Modlous
B-
Modbus
Modbus
BMS
13.5VAC
0.75mm²
201909
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