1887873 User Manual

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8. Testrun

8.1. Beforetestrun

►After completinginstallation andthewiring andpiping oftheindoor and

outdoorunits,checkforrefrigerantleakage,loosenessinthepowersup-

plyorcontrol wiring,wrongpolarity, andnodisconnectionofonephase

inthesupply.

►Usea500-volt megohmmeter to check that the resistance betweenthe

powersupplyterminalsandgroundisatleast1.0MΩ.

►Donotcarryoutthistestonthecontrolwiring(lowvoltagecircuit)termi-

nals.

Warning:

Donotusetheairconditioneriftheinsulationresistanceislessthan1.0MΩ.

8.2. Testrun

8.2.1. Usingwiredremotecontroller

■ Makesuretoreadoperationmanualbeforetestrun.(Especiallyitemstosecuresafety)

Step 1 Turnonthepower.

● Remotecontroller:Thesystemwillgointostartupmode,andtheremotecontrollerpowerlamp(green)and“PLEASEWAIT”willblink.Whilethelampandmessage

areblinking,theremotecontrollercannotbeoperated.Waituntil“PLEASEWAIT”isnotdisplayedbeforeoperatingtheremotecontroller.Afterthepoweristurnedon,

“PLEASEWAIT”willbedisplayedforapproximately2minutes.

● Indoorcontrollerboard:LED1willbelitup,LED2willbelitup(iftheaddressis0)oroff(iftheaddressisnot0),andLED3willblink.

● Outdoorcontrollerboard:LED1(green)andLED2(red)willbelitup.(Afterthestartupmodeofthesystemnishes,LED2willbeturnedoff.)Iftheoutdoorcontroller

boardusesadigitaldisplay,[-]and[-]willbedisplayedalternatelyeverysecond.

 Iftheoperationsdonotfunctioncorrectlyaftertheproceduresinstep2andthereafterareperformed,thefollowingcausesshouldbeconsideredandeliminatedifthey

are found.

 (Thesymptomsbelowoccurduringthetestrunmode.“Startup”inthetablemeanstheLEDdisplaywrittenabove.)

Symptomsintestrunmode

Cause

RemoteControllerDisplay

OUTDOORBOARDLEDDisplay

<>indicatesdigitaldisplay.

Remotecontrollerdisplays“PLEASEWAIT”,and

cannot be operated.

After “startup” is displayed, only green lights

up.<00>

• After power isturned on, “PLEASEWAIT” is displayed for 2

minutesduringsystemstartup.(Normal)

Afterpoweristurnedon,“PLEASEWAIT”isdis-

playedfor3minutes,thenerrorcodeisdisplayed.

After “startup” is displayed, green(once) and

red(once)blinkalternately.<F1>

• Incorrectconnectionofoutdoorterminalblock(R,S,TandS

,

,S

After “startup” is displayed, green(once) and

red(twice)blinkalternately.<F3,F5,F9>

• Outdoorunit’sprotectiondeviseconnectorisopen.

Nodisplayappearsevenwhenremotecontroller

operation switch is turned on. (Operation lamp

doesnotlightup.)

After “startup” is displayed, green(twice) and

red(once)blinkalternately.<EA.Eb>

• Incorrectwiringbetweentheindoorandoutdoorunit(Polarityis

wrong for S

,S

• Remotecontrollertransmissionwireshort.

After “startup” is displayed, only green lights

up.<00>

• Thereisnooutdoorunitofaddress0.(Addressisotherthan0.)

• Remotecontrollertransmissionwireopen.

Displayappearsbutsoondisappearsevenwhen

remote controller is operated.

After “startup” is displayed, only green lights

up.<00>

• Aftercancelingfunctionselection,operationisnotpossiblefor

about30seconds.(Normal)

Step2 Switchtheremotecontrollerto“Testrun”.

1 Select“Testrun”fromtheServicemenu,andpressthe[SELECT]button.(Fig.8-1)

2 Select“Testrun”fromtheTestrunmenu,andpressthe[SELECT]button.(Fig.8-2)

3 Thetestrunoperationstarts,andtheTestrunoperationscreenisdisplayed.

F1 F2 F3 F4

Cool

Pipe

Auto

Switch disp.

Mode Fan

RemainTest run

Fig.8-3

F1 F2 F3 F4

unem ecivreS

rosruC

:unem niaM

Test run

Input maintenance info.

Function setting

Check

Self check

Fig.8-1

F1 F2 F3 F4

Test run menu

Cursor

Service menu:

Test run

Drain pump test run

Fig.8-2

F1 F2 F3 F4

Remain

Vane

Fig.8-4

Step3 Performthetestrunandchecktheairowtemperatureandautovane.

1 Pressthe[F1]buttontochangetheoperationmode.(Fig.8-3)

Cooling mode: Check that cool air blows from the unit.

Heating mode: Check that warm air blows from the unit.

2 Pressthe[SELECT]buttontodisplaytheVaneoperationscreen,andthenpress

the[F1]and[F2]buttonstochecktheautovane.(Fig.8-4)

 Pressthe[RETURN]buttontoreturntotheTestrunoperationscreen.

 Ifthevanesdonotmove,checkthatthejunctionwireconnectorsareconnected

securely and the connector colors match.

Step4 Conrmtheoperationoftheoutdoorunitfan.

Thespeedoftheoutdoorunitfaniscontrolledinordertocontroltheperformanceoftheunit.Dependingontheambientair,thefanwillrotateataslowspeedandwillkeep

rotatingatthatspeedunlesstheperformanceisinsufcient.Therefore,theoutdoorwindmaycausethefantostoprotatingortorotateintheoppositedirection,butthisis

not a problem.

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User Manual - Page 14