Midea Mini C Series Service Manual page 31

Mini C Series VRF 50/60Hz
Figure 4-1.2: 100/120 model outdoor unit main PCB switches and communication switchboard
Main board
Table 4-1.2: 100/120 model outdoor unit main PCB switch settings
Switch Setting
Force
SW1
cooling
Spot
SW2
check
Network
ENC3
address
S1-1
S1 S1-2
S1-3
S2=000
S2=100
S2=010
S2 S2=110
S2=001
S2=101
S3=100
S3
S3=010
Notes: Black denotes the switch position.
30
Switch
1
positions
Press SW1 to enter the forced cooling mode; press it once again to exit the forced
cooling mode
Spot check button
DIP switch for network address of ODU
Valid at 0–7, 0–7 for addresses 0–7
S1-1 is ON, Forced implementation of old IDU protocol
S1-1 is OFF, Automatic selection of the new or old protocol (default)
S1-2 is ON, Forced clearing of IDU address
S1-2 is OFF, Automatic addressing(default)
S1-3 is ON, Automatically judging EXV control mode of ODU in cooling mode
S1-3 is OFF, ODU EXV of forced discharge temperature control in cooling mode(default)
First on priority mode (default)
Cooling priority mode
Automatic priority mode
In response to heating mode only
In response to cooling mode only
VIP priority or voting priority
Heating priority mode at other DIP combinations
ODU capacity DIP: 10KW
ODU capacity DIP: 12KW
Communication switchboard
Dial switch
Check button
Power switch
Description
Digital display
ENC3 switch