5
Multi Connection
Note for Multi System
A multi system has one outdoor unit connected to multiple indoor units.
Selecting the operation mode
When the priority room setting is active
but the set unit is not operating or when
the priority room setting is inactive
When more than one indoor unit is operating, priority is given to
therstunitthatwasturnedon.
In this case, set the units that are turned on later to the same
operationmodeastherstunit.
Otherwise,theywillenterthestandbystate,andwhenusingthewired
remotecontrollerthecentralizedcontrolicon“CENTRALCONTROL”
will light up; this does not indicate malfunction.
NOTE
Notes on operation mode for a multi system
•COOL,DRYandFANoperationmaybeusedatthesametime.
•AUTOoperationautomaticallyselectsCOOLoperationorHEAToperationbasedontheindoortemperature.
Therefore,AUTOoperationisavailablewhenselectingthesameoperationmodeasthatoftheroomwiththerstunittobeturnedon.
CAUTION
• Normally,theoperationmodeintheroomwheretheunitisrststartedisgivenpriority,butthefollowingsituationsareexceptionstothisrule.
IftheoperationmodeoftherstroomisFANoperation,thenusingHEAToperationinanyroomafterthiswillgiveprioritytoHEAToperation.
In this situation, the indoor unit operating in FAN mode will switch to standby, and when using the wired remote controller the centralized
control icon
“
CENTRALCONTROL”willlightup.
With the priority room setting active
Refer to “Priority room setting”onthenextpage.
NIGHT QUIET mode (Available only for COOL operation)
NIGHTQUIETmoderequiresinitialprogramingduringinstallation.Pleaseconsultyourretailerordealerforassistance.
NIGHTQUIETmodereducestheoperationnoiseoftheoutdoorunitduringthenight-timehourstopreventannoyancetoneighbours.
• NIGHTQUIETmodeisactivatedwhenthetemperaturedrops10.8°F(6°C)ormorebelowthehighesttemperaturerecordedthatday.
When the temperature difference between the current outdoor temperature and the maximum outdoor temperature becomes less than
7.2°F(4°C),thisfunctionwillbecanceled.
• NIGHTQUIETmodeslightlyreducesthecoolingefciencyoftheunit.
QUIET OUTDOOR UNIT operation (Function unavailable in the FFQ series)
FordetailsonQUIETOUTDOORUNIToperation,refertotheoperationmanualincludedwiththeremotecontroller.
When the priority room setting is active but the set unit is not operating or when the
priority room setting is inactive
WhenusingtheQUIETOUTDOORUNIToperationfeaturewithamultisystem,setallindoorunitstoQUIETOUTDOOR
UNIT operation using their remote controllers.
WhencancelingQUIETOUTDOORUNIToperation,simplycancelthemodeononeoftheoperatingindoorunitsusingtheirremotecontroller.
HoweverQUIETOUTDOORUNIToperationwillremaindisplayedontheremotecontrollersfortheotherrooms.
We recommend you cancel operation in all rooms using their remote controllers.
With the priority room setting active
Refer to “Priority room setting”onthenextpage.
Room A Room B
Room C Room D
Outdoor unit
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