OPTION LIST
40
CAUTION:
–
DO  NOT  set  various  main  adaptors  in  the  same
refrigerant cycle.
6) Procedure  when  applying  200V  voltage  to  H-LINK
7) Terminating resistance is set in whole H-LINK system.
a) If  H-LINK  connecting  devices  like  package  air-
conditioner  are connected  besides  the  RAC
Adaptor,  set  the  terminating  resistance  by  those
connecting  devices.  The  terminating  resistance
should be set ON in only one position in whole H-
LINK system.
b) In case that H-LINK is connected only by the RAC
adaptor, set the terminating resistance by the RAC
adaptor. The terminating resistance should be set
ON in only one position in whole H-LINK system.
10.2.5. TEST RUN
Test run should be performed in the following after finishing 
the  installation,  wiring  and  setting.  Refer  to  the  installation 
manuals enclosed with the control system equipment.
1) Confirmation of RAC Adaptor Connection
Confirm if the RAC adaptor connection is recognized in
the  control  system  equipments.  In  case  that  it  is  not
confirmed,  check  the  transmission  cable,  refrigerant
cycle #, indoor unit #, terminal resistance setting etc.
2)
3)
Registration
Confirm if the RAC adaptor connection is recognized.
Confirmation of RUN/STOP Operation.
Confirm if the room air-conditioner operate correctly by
RUN/STOP  from  the  central  control  system
equipments.  Check  also  if  the  room  air-conditioner
operation changes correctly by each setting.
Refrigerant 
Unit#
Indoor Unit#
DSW4
Turn ON No.2 pin of 
DSW4
ON
1 2
PCB
DSW4
Turn ON No.1 pin of 
DSW4
ON
1
2
wiring incorrectly.
In  case  of  applying  200V  voltage  to  H-LINK  wiring
incorrectly, the fuse installed in a transmission circuit on
PCB  will  blow  out.  In  this  case,  reconnect  the  wiring
correctly and turn ON No. 2 pin of DSW4 on PCB. The
transmission  circuit can be  recovered.  (If applying  this
error  again,  the  transmission  circuit  can  not  be
recovered)
PCB