Midea ATOM B Series - Page 28

Atom B Series VRF 50/60Hz
27
Part 4
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Field Settings
Table 4-1.2: 36/42/48/56 model outdoor unit main PCB switch settings
Switch
Setting
Switch
positions
1
Description
SW1
Force cooling
Press SW1 to enter the forced cooling function;
press it again to exit the forced cooling function.
SW2
Spot check
Spot check button
S1
S1-1
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
S1-2 is ON, forced clearing of IDU address
S1-2 is OFF, Automatic addressing(default)
S1-3
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)
S2
S2=000
First on priority mode (by default)
S2=100
Cooling priority mode
S2=010
Automatic priority mode
S2=001
In response to cooling mode only
S2=110
In response to heating mode only
S2=011
Heating priority mode
S3
S3=100
ODU capacity DIP
2
: 10KW
S3=010
ODU capacity DIP: 12KW
S3=110
ODU capacity DIP: 14KW
S3=001
ODU capacity DIP: 16KW
Table continued on next page…