Midea ATOM B Series Service Manual page 28

Table 4-1.2: 36/42/48/56 model outdoor unit main PCB switch settings
Switch Setting
SW1 Force cooling
SW2 Spot check
S1-1
S1-2
S1
S1-3
S2=000
S2=100
S2=010
S2
S2=001
S2=110
S2=011
S3=100
S3=010
S3
S3=110
S3=001
Switch
1
positions
Press SW1 to enter the forced cooling function;
press it again to exit the forced cooling function.
Spot check button
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 (by default)
Cooling priority mode
Automatic priority mode
In response to cooling mode only
In response to heating mode only
Heating priority mode
ODU capacity DIP
ODU capacity DIP: 12KW
ODU capacity DIP: 14KW
ODU capacity DIP: 16KW
Atom B Series VRF 50/60Hz
Description
2
: 10KW
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