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Figure 4-1.3: 48/56 model outdoor unit main PCB switches and communication switchboard
Table 4-1.3: 48/56 model outdoor unit main PCB switch settings
Switch
Setting
Force
SW1
cooling
Spot
SW2
check
Capacity
ENC2
of ODU
Network
ENC3
address
S1- 1
S1
S1- 2
S1- 3
S2=000
S2=100
S2=010
S2
S2=110
S2=001
S2=011
Switch
positions
1
Press SW1 to enter the forced cooling function; press it again to exit the forced cooling
function
Spot check button
"POWER" - ODU capacity code (3--14KW; 4--16KW)
DIP switch for network address of ODU
Valid at 0–7, 0–7 for addresses 0–7 (0 by default)
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 heating mode only
In response to cooling mode only
Heating priority mode
Digital display
Check button and force cooling button
Dial switch
ENC2/ENC3
Description
31
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