Gree GMV-224WM/B-X, Service Manual

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GMV5 DC INVERTER VRF UNITS SERVICE MANUAL
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non-master unit is invalid, and it is unnecessary to change the settings.
3) The centralized control address DIP switch (SA2_Addr-CC) on the master unit of a refrigerating
system must be set to ―00000‖, and this system is the master sy
stem.
4) The centralized control address DIP switch (SA2_Addr-CC) on the master unit of other refrigerating
systems must be set as follows:
SA2
Address
No. DIP1 DIP2 DIP3 DIP4 DIP5
1 0 0 0 0 2
0 1 0 0 0 3
0 0 1 0 0 4
0 0 0 1 0 5
0 0 0 0 1 6
1 0 0 0 1 7
0 1 0 0 1 8
0 0 1 0 1 9
0 0 0 1 1 10
1 0 0 1 1 11
0 1 0 1 1 12
0 0 1 1 1 13
1 0 1 1 1 14
0 1 1 1 1 15
1 1 1 1 1 16
5) The centralized control address DIP switch (SA2_Addr-CC) cannot be the same between different
refrigerating systems. Otherwise, address conflicts may occur and the unit cannot run properly.
3. Compressor Emergency Operation DIP Switch (SA3_COMP-E)
Corresponding to 2#-6# compressors, the compressor emergency operation DIP switch (SA3_COMP-E)
is used for aftersales emergency settings when an exception occurs on a compressor. It can shield the
operation of the abnormal compressor in a short time and guarantee the emergency operation of other
compressors.
When it is required to shield the operation of 2#-6# compressors upon failure, set the DIP switch
according to the following methods:
Compressor Emergency Operation
DIP Switch (SA3_COMP-E)
Remark DIP1 DIP2 DIP3 DIP4 DIP5
0 0 0 0 0
Not shielding the operation of
2#-6# compressors
1 0 0 0 0
Shielding the operation of 2#
compressor
0 1 0 0 0
Shielding the operation of 3#
compressor
0 0 1 0 0
Shielding the operation of 4#
compressor
0 0 0 1 0
Shielding the operation of 5#
compressor
0 0 0 0 1
Shielding the operation of 6#
compressor