Precautions: 
A. When the DIP switch setting is not covered in the above scope, a DIP switch setting exception 
fault may occur. 
B. Only one compressor can be set to emergency mode on a module. 
C. The compressor emergency operation mode is valid only in a single-module multi-compressor 
system. 
D. The default factory setting is “00000”. 
E. The system cannot continually run for more than 24 hours in compressor emergency operation 
status.  Once  24  hours  are  exceeded,  the  entire  unit  will  be  forcibly  stopped  and  the  limited 
operation code “Ad” is displayed on the IDU. 
F. 1#-6# compressors are defined from right to left facing the front of the unit. 
④ 1# Compressor/Module Emergency Operation DIP Switch (SA4_I/M-E) 
The 1#  compressor/module  emergency operation  DIP  switch (SA4_I/M-E)  is  used for  aftersales 
emergency settings when an exception occurs on the 1# compressor/module. It can shield the operation 
of the abnormal compressor/module in a short time and guarantee the emergency operation of other 
compressors.   
When it is required to set the 1# compressor/module to emergency mode, set the DIP switch as 
follows: