Service Bulletin 
Detail: Step of replace guide fan and fan motor 
Page 3 
Unplug unit & Open Cover M/C 
Unplug c-fan motor housing 
Cut off cable tie on  
condenser inside corner 
Loose guide fan screw and 
push condenser Joint pipe 
down slowly  
Move guide fan assembly out 
of frame and take it  
out from machinery room 
Replacement for new fan 
motor and new guide fan  
if needed 
Put guide fan assembly  
into machinery room 
carefully and install on the  
frame well (all hook check) 
Tighten screw on 
Guide fan and check gap 
between fan and guide fan 
Move condenser joint pipe 
to right location and 
connect c-fan motor 
housing 
※ Notice: 3EA hook install well  
※ Notice: fan and guide fan gap 4±1mm 
Gap 4±1mm 
※ Notice: condenser not pull out 
※ Notice: condenser joint pipe parallel  
※ Notice: damper motor, fan install well 
Product : Ref 
Bulletin # : CNZ201900274-01 
Release Date : 2019.06.19