Midea ATOM B Series Service Manual page 26

Table 4-1.1: 28 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 S3=000
S4=0000
S4=1000
S4=0100
S4=1100
S4
S4=0010
S4=1010
S4=0110
S4=1110
Notes:
1. Black denotes the switch position.
Switch
positions 1
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 indoor unit protocol
S1-1 is OFF, Automatically adapting to indoor unit protocol( default)
S1-2 is ON, Clearing of indoor unit 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 enabled priority mode(default)
Cooling priority mode
Automatic selection of priority mode
In response to cooling mode only
In response to heating mode only
Heating priority mode
ODU capacity: 8KW
Network address of ODU: 0(default)
Network address of ODU: 1
Network address of ODU: 2
Network address of ODU: 3
Network address of ODU: 4
Network address of ODU: 5
Network address of ODU: 6
Network address of ODU: 7
Atom B Series VRF 50/60Hz
Description
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