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N o t e fo r M ul t i S y s t em
C O O L / H E A T m o d e l o ck
TheCOOL/HEATmodelockrequiresinitialprogrammingduringinstallation.Pleaseconsultyourauthorizeddealerfor
assistance.TheCOOL/HEATmodelocksetstheunitforciblytoeitherCOOLorHEAToperation.Thisfunctionisconvenient
whenyouwishtosetallindoorunitsconnectedtothemultisystemtothesameoperationmode.
P rio rit y ro o m s et t ing
Thepriorityroomsettingrequiresinitialprogrammingduringinstallation.Pleaseconsultyourauthorizeddealerforassistance.
Theroomdesignatedasthepriorityroomtakespriorityinthefollowingsituations.
O p era t io n m o d e p rio rit y
•Astheoperationmodeofthepriorityroomtakesprecedence,theusercanselectadierentoperationmodefromother
rooms.
[Example]
•RoomAisthepriorityroomintheexamples.
WhenCOOLoperationisselectedinroomAwhileoperatingthefollowingmodesinroomB,CandD:
OperationmodeinroomB,CandD StatusofroomB,CandDwhentheunitinroomAisinCOOLoperation
COOLorDRYorFAN
Currentoperationmodemaintained
HEAT
Theunitentersstandbymode.OperationresumeswhentheroomAunitstopsoperating.
AUTO
IftheunitissettoCOOLoperation,operationcontinues.IftheunitissettoHEAToperation,it
entersstandbymode.OperationresumeswhentheroomAunitstopsoperating.
P rio rit y w h en P O W E RF U L o p era t io n is us ed
[Example]
•RoomAisthepriorityroomintheexamples.
TheindoorunitsinroomsA,B,CandDarealloperating.IftheunitinroomAentersPOWERFULoperation,operation
capacitywillbeconcentratedinroomA.Insuchacase,thecooling(heating)eciencyoftheunitsinroomB,CandD
maybeslightlyreduced.
P rio rit y w h en us ing O U T D O O R U N I T QU I E T o p era t io n
[Example]
•RoomAisthepriorityroomintheexamples.
JustbysettingtheunitinroomAtoQUIEToperation,theairconditionerstartsOUTDOORUNITQUIEToperation.
Youdon’thavetosetalltheoperatedindoorunitstoQUIEToperation.
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