Loading ...
Loading ...
Loading ...
En-6
4-4. LOCKING THE OPERATION MODE OF THE AIR CONDITIONER (COOL, DRY, HEAT)
4-5. LOWERING THE OPERATION NOISE OF THE OUTDOOR UNIT
• Descriptionofthefunction:
Withthisfunction,oncetheoperationmodeislockedtoeitherCOOL/DRYmode
orHEATmode,theairconditioneroperatesinthatmodeonly.
* Changingthesettingisrequiredtoactivatethisfunction.Pleaseexplainabout
thisfunctiontoyourcustomersandaskthemwhethertheywanttouseit.
[How to lock the operation mode]
1)Besure toturn offthe mainpower forthe airconditioner beforemaking the
setting.
2)Setthe“3”ofSW1ontheoutdoorcontrollerboardtoONtoenablethisfunction.
3)Tolockthe operationmodeinCOOL/DRYmode,setthe “4”ofSW1onthe
outdoorcontrollerboardtoOFF.TolocktheoperationinHEATmode,setthe
sameswitchtoON.
4)Turnonthemainpowerfortheairconditioner.
• Descriptionofthefunction:
Withthisfunction,theoperatingnoiseoftheoutdoorunitcanbeloweredbyreducingtheoperationload,forexample,duringnighttimeinCOOLmode.
However,pleasenotethatthecoolingandheatingcapacitymaylowerifthisfunctionisactivated.
* Changingthesettingisrequiredtoactivatethisfunction.Pleaseexplainaboutthisfunctiontoyourcustomersandaskthemwhethertheywanttouseit.
Lowertheoperatingnoise
[How to lower the operating noise]
1)Besuretoturnoffthemainpowerfortheairconditionerbeforemakingthesetting.
2)Setthe“5”ofSW1ontheoutdoorcontrollerboardtoONtoenablethisfunction.
3)Turnonthemainpowerfortheairconditioner.
4-6. TEST RUN
• Testrunsoftheindoorunitsshouldbeperformedindividually.Seetheinstallationmanualcomingwiththeindoorunit,andmakesurealltheunitsoperate
properly.
• Ifthetestrunwithalltheunitsisperformedatonce,possibleerroneousconnectionsoftherefrigerantpipesandtheindoor/outdoorunitconnectingwires
cannotbedetected.Thus,besuretoperformthetestrunonebyone.
About the restart protective mechanism
Oncethecompressorstops,therestartpreventivedeviceoperatessothecompressorwillnotoperatefor3minutestoprotecttheairconditioner.
Wiring/piping correction function
Thisunithasawiring/pipingcorrectionfunctionwhichcorrectswiringandpipingcombination.Whenthereispossibilityofincorrectwiringandpipingcombi-
nation,andconrmingthecombinationisdifcult,usethisfunctiontodetectandcorrectthecombinationbyfollowingtheproceduresbelow.
Makesurethatthefollowingisdone.
• Powerissuppliedtotheunit.
• Stopvalvesareopen.
Note:
Duringdetection,theoperationoftheindoorunitiscontrolledbytheoutdoorunit.Duringdetection,theindoorunitautomaticallystopsoperation.Thisisnot
amalfunction.
Whenrelocatingordisposingoftheairconditioner,pumpdownthesystemfollowingtheprocedurebelowsothatnorefrigerantisreleasedintotheatmosphere.
1)Turnoffthebreaker.
2)Connectthegaugemanifoldvalvetotheserviceportofthestopvalveonthegaspipesideoftheoutdoorunit.
3)Fullyclosethestopvalveontheliquidpipesideoftheoutdoorunit.
4)Turnonthebreaker.
5)StarttheemergencyCOOLoperationonalltheindoorunits.
6)Whenthepressuregaugeshows0.05to0MPa[Gauge](approx.0.5to0kgf/cm
2
),fullyclosethestopvalveonthegaspipesideoftheoutdoorunitand
stoptheoperation.(Refertotheindoorunitinstallationmanualaboutthemethodforstoppingtheoperation.)
*Iftoomuchrefrigeranthasbeenaddedtotheairconditionersystem,thepressuremaynotdropto0.05MPa[Gauge](approx.0.5kgf/cm
2
),ortheprotection
functionmayoperateduetothepressureincreaseinthehigh-pressurerefrigerantcircuit.Ifthisoccurs,usearefrigerantcollectingdevicetocollectallof
therefrigerantinthesystem,andthenrechargethesystemwiththecorrectamountofrefrigerantaftertheindoorandoutdoorunitshavebeenrelocated.
7)Turnoffthebreaker.Removethepressuregaugeandtherefrigerantpiping.
4-7. EXPLANATION TO THE USER
• UsingtheOPERATINGINSTRUCTIONS,explaintotheuserhowtousetheairconditioner(howtousetheremotecontroller,howtoremovetheairlters,
howtoremoveorputtheremotecontrollerintheremotecontrollerholder,howtoclean,precautionsforoperation,etc.).
• RecommendtheusertoreadtheOPERATINGINSTRUCTIONScarefully.
Procedure
Pressthepiping/wiringcorrectionswitch(SW871)1minuteormoreafterturningonthe
powersupply.
• Correctioncompletesin10to15minutes.Whenthecorrectioniscompleted,itsresult
isshownbyLEDindication.Detailsaredescribedinthefollowingtable.
• Tocancelthisfunctionduringitsoperation,pressthepiping/wiringcorrectionswitch
(SW871)again.
• Whenthecorrectioncompletedwithouterror,donotpressthepiping/wiringcorrection
switch(SW871)again.
Whentheresultis“Notcompleted”,pressthepiping/wiringcorrectionswitch(SW871)again
tocancelthisfunction.Then,conrmthewiringandpipingcombinationinaconventional
mannerbyoperatingtheindoorunitsonebyone.
• Theoperationisdonewhilethepowerissupplied.Makesurenottocontactpartsother
thantheswitch,includingtheP.C.board.Thismaycauseelectricshockorburnbyhot
partsandlivepartsaroundtheswitch.ContactingthelivepartsmaycauseP.C.board
damage.
• TopreventelectroniccontrolP.C.boarddamage,makesuretoperformstaticelimination
beforeoperatingthisfunction.
• Thisfunctiondoesnotoperatewhentheoutsidetemperatureis0°Corbelow.
LED indication during detection:
LED1
(Red)
LED2
(Yellow)
LED3
(Green)
Lighted Lighted Once
Result of piping/wiring correction function
LED1
(Red)
LED2
(Yellow)
LED3
(Green)
Result
Lighted Notlighted Lighted
Completed
(Problemcorrectedor
normal)
Once Once Once
Notcompleted
(Detectionfailed)
Otherindications
Referto“SAFETYPRE-
CAUTIONSWHENLED
BLINKS”locatedbehind
thetoppanel.
When pumping down the refrigerant, stop the compressor before disconnecting the refrigerant pipes.
The compressor may burst and cause injury if any foreign substance, such as air, enters the pipes.
WARNING
5. PUMPING DOWN
HEAT
COOL/DRY
LED
SW1
SW871
SW2
SW1
ON
1 2 3 4 5 6
SW1
ON
1 2 3 4 5 6
BN79A289H01_en.indd 6 2016/04/20 14:53:02
Loading ...