V4+R VRF 50/60Hz 
201702    29 
Figure 3-5.4: Compressor priority and rotation – four outdoor units 
No. 1        No. 2        No. 3                        No. 4                        No. 5 
No. 4        No. 5        No. 1                        No. 2                        No. 3 
No. 3        No. 4        No. 5                        No. 1                        No. 2 
No. 2        No. 3        No. 4                        No. 5                        No. 1 
No. 1        No. 2        No. 3        No. 4        No. 5                        No. 6 
No. 5        No. 6        No. 1        No. 2        No. 3                        No. 4 
No. 3        No. 4        No. 5        No. 6        No. 1                        No. 2 
No. 2        No. 3        No. 4        No. 5        No. 6                        No. 1 
No. 1        No. 2        No. 3        No. 4        No. 5      No. 6        No. 7 
No. 6        No. 7        No. 1        No. 2        No. 3      No. 4          No. 5 
No. 4        No. 5        No. 6        No. 7        No. 1      No. 2          No. 3 
No. 2        No. 3        No. 4        No. 5        No. 6      No. 7          No. 1