2008 10 Aircon Installation Instruction

8/8/2019 2008 10 Aircon Installation Instruction

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INSTALLATION INSTRUCTION

Part 1 Wall-mounted Split Type

Premier Heat Pumps v9.08


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INSTALLATION - Toolsrequired2.1Tools

Screw driver

Assembly,disassmbly

Hand drill

Indoor installationplate fixing

Ruler, knife

Ruler: Length &distancemeasurement.Knife: Tape cutting

Gas leak detector& soup water

Leak inspection

Thermometer Hex. wrench(Large side: 4mm, 5mm)

Temperaturemeasurement atIndoor suctioninlet/discharge outlet.

Service valveoperating

Core drill(diameter 70mm)

Wall through

Monkey spanner(300mm): 2EA

Indoor/Outdoorpipe connection

Torque wrench

Indoor/outdoorpipe connection

Hook meter(for current measurement)

Current, voltage,resistance

measurement

Insulationresistance meter

Flare tool set

Insulation resistancemeasurement

(Electric shock prevention)

Pipe cutting,Burr removal

Level

Clamp meter

Thermometer

Drive torch Mega tester

2.2Accessory

Connnection cable

Indoor-Outdoorwire connnection

Winter cover

Outdoor protectionin a unusedseason

like winter

Anti-vibrationrubber

Vibration absorptionof outdoor

Band

Wire & pipefinishing

Adhesive

Finishing

Drain hose

Drainage

Refrigerant pipe(for high/low pressure)

Refrigerant circuitconnection to

Indoor/Outdoor.

Putty

Chaging of wall-through hole

Vinyl tape

Wire & pipefinishing

Remocon fixture

Remocon hanger

Fixture clampingscrew

Remocon fixturefixing

Remocon

Remark: Some of the above parts are provided by the installer and not included in the standard air-conditioner.

3

Premier Heat Pumps - Air conditioner installation / service manual


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A

l

3.Splittypeinstallation3.1Selectthebestlocation

3.1.1Indoorunit

1)Donothaveanyheatorsteamneartheunit.2)Selectaplacewheretherearenoobstaclesinfrontof

theunit.

3)Makesurethatcondensationdrainagecanbeconve-nientlyroutedaway.

4)Donotinstallnearadoorway.

5)Ensurethat thespacearoundthe leftand rightof theunitismorethan5cm.Theunitshouldbeinstalledashighonthewallaspossible, allowingaminimumof

5cmfromceiling.6)Useastudfindertolocatestudstopreventunneces-

sarydamagetothewall.

More than 5cm More than 5cm

More than 2.3m More than 5cm

Installtheindoorunitonthewallwheretheheightfromthefloorsmorethan2.3meters.

CAUTION

3.1.2Outdoorunit

1)Ifanawningisbuiltovertheunittopreventdirectsun-lightorrainexposure,makesurethatheatradiationfromthecondenserisnotrestricted.

2)Ensurethatthespacearoundthebackandsidesismorethan10cm.Thefrontoftheunitshouldhavemorethan70cmofspace.

3)Donotplaceanimalsandplantsinthepathofthewarmair.

4)Taketheairconditionerweightintoaccountandselect

aplacewherenoiseandvibrationareminimum.5)Selectaplacesothatthewarmairandnoisefromthe

airconditionerdonotdisturbneighbors.

More than 10cm More than 10cm

More than 60cm

MoreMore than 70cm than 60cm

6)RooftopInstallations:Iftheoutdoorunitisinstalledonaroofstructure,be

suretoleveltheunit.Ensuretheroofstructureandanchoringmethodareadequatefortheunitlocation.Consultlocalcodesregardingrooftopmounting.

3.2Pipinglengthandelevation

Capacity(Btu/h)

PipeSize StandardLength

(m)

Max.ElevationB (m)

Max.lengthA (m)

AdditionalRefrigerant

(g/m)GAS LIQUID

7K, 9K 3/8" 1/4" 3or5 5 10 20

12K 1/2" 1/4 3.5or5 5 10 20

18K 1/2" 1/4" 4.5 5 15 30

24K 5/8" 3/8" 5 5 15 30

*Bothgasandliquidinterconnectingpipesmustbe

insulatedasapair,butitisnotnecessarytoindi-viduallyinsulatethem.

Incasemorethan5m

Capacityisbasedonstandardlengthandmaximumallowancelengthisonthebasisofreliability.

Oiltrapshouldbeinstalledevery5~7meters.

Oil trap

Outdoor unit

Indoor unitB

Outdoor unit

Indoor unit

A

B

CAUTION

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3.3Howtofixinstallationplate

Thewallyouselectshouldbestrongandsolidenoughtopreventvibration

3.3.1 MounttheinstallationplateonthewallwithfourtypeAscrews.Ifmountingtheunitonaconcretewall,useanchorbolts.

Mounttheinstallationplatehorizontallybyaligningthecenter-lineusingalevel.

Installation Plate

Marking-off line

Thread

Weight

Type "A" screw

3.3.2 Measurethewallandmarkthecenterline.Itisalsoimportanttousecautionconcerningthelocationoftheinstallationplate-routingofthewiringtopoweroutletsisthroughthewallstypically.Drillingtheholethroughthewallforpipingconnectionsmustbedonesafely.

Left rear piping Right rear pipingD

A,B

A,B,CC

DA,B,D

C

A

B,DC

70mmHole Center Installation plate

Forrightrearpipingandleftrearpiping,drawalineinthedirectionofthearrowmarked"D".The

meetingpointofthetwolinesisthecenterofthehole.

Thepositionofthecenterofthehole.

Leftholecoreposition Rightholecoreposition

DD

D D

3.4Drillaholeinthewall

Drillthepiping holewitha 70mmhole coredrill.

Drillthepipingholeateithertherightortheleftwiththeholeslightlyslantedtotheoutdoorside.

WALL

5-7mm

(0

.2~0.3

")

Indoor Outdoor

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Air Conditioner Service Manual

3.5Flaringworkandconnectionofpiping

3.5.1Flaringwork

Maincauseforgasleakageisduetodefectinflaring D.Flaringwork

work.Carryoutcorrectflaringworkinthefollowing Carryoutflaringworkusingflaringtoolasshown

procedure. below.

A.Cutthepipesandthecable.1)Usethepipingkitaccessoryorthepipespur-

chasedlocally.2)Measurethedistancebetweentheindoorandthe

outdoorunit.

3)Cutthepipesalittlelongerthanmeasureddis-tance.

4)Cutthecable1.5mlongerthanthepipelength.

Outsidediameter A

mm inch mm

6.35 1/4 1.0~1.3

9.52 3/8 0.8~1.0

12.7 1/2 0.5~0.8

15.88 5/8 0.5~0.8

Firmlyholdcopperpipeinadieinthedimensionshownin

Copper

90

thetableabove.

Slanted Uneven Roughpipe

Cone

YokeBar

Handle

Bar"A"

B.Burrsremoval Copper pipe1)Completelyremoveallburrsfromthe cutcross

sectionofpipe/tube.Clamp handle

Red arrow mark

2)Puttheendofthecoppertube/pipeinadownwarddirectionasyouremoveburrsinordertoavoid E.Checkdroppingburrsintothetubing. 1)Comparetheflaredworkwithfigurebelow.

2)Ifflareisnotedtobedefective,cutofftheflaredsec-Pipe tionanddoflaringworkagain.

Reamer

Smooth all roundPoint down Inside is shiny without scratches

Surfacedamaged

Cracked Uneventhickness

= Improper flaring =

C PuttingnutonInclined

Removeflarenutsattachedtoindoorandoutdoor

unit,thenputthemonpipe/tubehavingcompleted

Even length

all roundburrremoval.

(notpossibletoputthemonafterflaringwork)

Flare nut

Copper tube

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CoolingModelCapacity(Btu/h) HeatPumpModel

7K,9K,12K,18K

24K

Air Conditioner Service Manual

3.5.2 Connectionofpiping--Indoor

1)Preparing theindoor unit'spipinganddrainhoseforinstallationthroughthewall.

2)Removetheplastictubingretainer(seeillustration

below)andpullthetubinganddrainhoseawayfromchassis.

3)Replacetheplastictubingholderintheoriginalposi-tion.

CAUTIONWheninstall ,makesurethattheremainingpartsmustberemovedclearlysoasnottodamagethepipinganddrainhose,especiallypowercordandconnectingcable.

Forrightrearpiping

A.Routetheindoortubingandthedrainhoseinthedirectionofrearright. Indoor tubing

Drain hose

B.Inserttheconnectingcableintotheindoorunitfromtheoutdoorunitthroughthepipinghole.1)Donotconnectthecabletotheindoorunit.

2)Makeasmallloopwiththecableforeasyconnectionlater.

3)Connectingcable

Lengthofcon- Gas side piping

nectingcable74cm Liquid side piping

Cable

C.Tapethetubing,drainhoseandtheconnectingcable.Besurethatthedrainhoseislocatedatthelowestsideofthebundle.Locatingattheuppersidecancausedrainpantooverflowinsidetheunit.

Indoor tubing

Connecting Drain hosecable

Gas sideConnecting

pipingcable

Liquid side

Drain hose piping

NOTE:Ifthedrainhoseisroutedinsidetheroom,insulatethe

hosewithaninsulationmaterial* sothatdrippingfrom"sweat-ing"(condensation)willnotdamagefurnitureorfloors.

*Foamedpolyethyleneorequivalentisrecommended.

D.IndoorunitinstallationHook theindoorunitontotheupperportionof the

installationplate.(Engagethetwohooksofthereartopoftheindoorunitwiththeupperedgeoftheinstallationplate.)Ensurethatthehooksareproperly

seatedontheinstallationplatebymovingitleftand

right.

Connecting

cable

Drain hose

Pressthelowerleftandrightsidesoftheunitagainstthe

installationplateuntilthehooksengageintotheirslots(click-

ingsound).

E.Connectingthepipingstotheindoorunitanddrainhosetodrainpipe.

Alignthecenterofthepipingsandsufficientlytightentheflarenutbyhand.

Indoor unit tubing Flare nut Pipings

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PHP Air Conditioner Service Manual

Tightentheflarenutwithawrench.

Spanner (fixed)

Flare nut

Connection pipeTorque wrench

Indoor unit tubing

Capacity(Btu/h)

PipeSize[Torque]

GAS LIQUID

7K,9K 3/8"[4.2kg.m] 1/4"[1.8kg.m]

12K,18K 1/2"[5.5kg.m] 1/4"[1.8kg.m]

24K 5/8"[6.6kg.m] 3/8"[4.2kg.m]

Whenextendingthedrainhoseattheindoorunit,installthedrainpipe.

Drain pipe

Indoor unit drain hose

Vinyl tape(narrow)Adhesive

F.Wraptheinsulationmaterialaroundtheconnectingportion.

Overlaptheconnectionpipeinsulationmaterialandthe

indoorunitpipeinsulationmaterial.Bindthemtogetherwithvinyltapesothatthereisnogap.

Plastic bands Insulation material

Wraptheareawhichaccommodatestherearpiping

housingsectionwithvinyltape.

Connection Indoorunit pipepipe

Vinyl tape Wrap with vinyl tape(wide)

Vinyl tape(narrow)

Connecting cable

Pipe

Bundlethepipinganddrainhosetogetherbywrapping

themwithvinyltapeovertherangewithinwhichtheyfitintotherearpipinghousingsection.

Wrap with vinyl tape

Pipe

Vinyl tape(wide)

Drain hose

Forleftrearpiping

A.Routetheindoortubingwiththedrainhosetotherequiredpipingholeposition.

B.Insertthepiping,drainhoseandtheconnectingcableintothepipinghole.

Connecting cable

Drain pipe

Pipe

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C.Inserttheconnectingcableintotheindoorunit.

1)Don'tconnectthecabletotheindoorunit.2)Makeasmallloopwiththecableforeasyconnection

later.

D.Tapethetubing,drainhoseandtheconnectingcable.

Connectingcable

CoolingModelCapacity (Btu/h) HeatPumpModel

Loop

7K,9K,12K,18K

24K

E.Indoorunitinstallation

1)Hangtheindoorunitfromthehooksatthetopoftheinstallationplate.

2)Insertthespaceretc.betweentheindoorunitandtheinstallationplateandseparatethebottomoftheindoor

unitfromthewall.

Indoor unit

Spacer

Installation plate

F.Connectingthepipingstotheindoorunitand thedrainhosetodrainpipe.

Align thecenter ofthepipingsandsufficiently tightentheflarenutbyhand.

Indoor unit tubing Flare nut Pipings

Tightentheflarenutwithawrench.

Spanner (fixed)

Flare nut

Connection pipeTorque wrench

Indoor unit tubing

Capacity(Btu/h)

PipeSize[Torque]

GAS LIQUID

7K,9K 3/8"[4.2kg.m] 1/4"[1.8kg.m]

12K,18K 1/2"[5.5kg.m] 1/4"[1.8kg.m]

24K 5/8"[6.6kg.m] 3/8"[4.2kg.m]

Whenextending thedrain hoseattheindoorunit,installthedrainpipe.

Drain hose

Indoor unit drain hose

Vinyl tape (narrow)Adhesive

G.Wraptheinsulationmaterialaroundtheconnect-ingportion.

Overlaptheconnectionpipeheatinsulationandtheindoorunitpipeheatinsulationmaterial.Bindthemtogetherwithvinyltapesothatthereisnogap.

Plastic bandsInsulation material

Wraptheareawhichaccommodatestherearpipinghousingsectionwithvinlytape.

Connection Indoor

unit pipingpipe

Wrap with vinyl tapeVinyl tape

Vinyl tape(narrow)

Connecting cable

Pipe

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3/8"[4.2kg.m] 1/4"[1.8kg.m]

1/2"[5.5kg.m] 1/4"[1.8kg.m]

24K 5/8"[6.6kg.m] 3/8"[4.2kg.m]

PipeSize[Torque]Capacity(Btu/h) GAS LIQUID

12K,18K

7K,9K


Bundlethepipinganddrainhosetogetherbywrappingthemwithclothtapeovertherangewithinwhichtheyfit

intotherearpipinghousingsection.

Wrap with vinyl tape

Pipe

Vinyl tape

Drain hose

H.Reroutethepipingsandthedrainhoseacrossthebackofthechassis.

Piping forpassage throughpiping hole

I.Setthepipingsandthedrainhosetothebackofthechassiswiththetubingholder.

Hooktheedgeoftubingholdertotaponchassisandpushthebottomoftubingholdertobeengagedatthebottomofchassis.

Taping

J.Indoorunitinstallation1)Removethespacer.

2)Ensurethatthehooksareproperlyseatedontheinstallationplatebymovingitleftandright.

Connectingcable

Drain hose

Pressthelowerleftandrightsidesoftheunitagainst

theinstallationplateuntilthehooksengageintotheir

slots(clickingsound).

3.5.3Connectionofthepipes-Outdoor

A.Alignthecenterofthepipingsandsufficientlytightentheflarenutbyhand.

B.Finally,tightentheflarenutwithtorquewrenchuntilthewrenchclicks.

Whentighteningtheflarenutwithtorquewrench,ensurethedirectionfortighteningfollowsthearrowonthewrench.

Outdoor unit

Gas side piping(Bigger diameter)

Liquid side piping(Smaller diameter)

Torque wrench

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3.6Connectingthecablebetweenindoorunitandoutdoorunit

3.6.1ConnectthecabletotheIndoorunit.

Connectthecabletotheindoorunitbyconnecting

thewirestotheterminalsonthecontrolboardindi-

viduallyaccordingtotheoutdoorunitconnection .(Ensurethatthecolorofthewiresoftheoutdoor unitandtheterminalNo.arethesameasthoseofthe

indoorunit.)

7K~18Kcoolingmodel

Terminalontheindoorunit

Terminalontheoutdoorunit 1 N

1 N

BROWN BLUE GREEN/YELLOW

BROWN BLUE GREEN/YELLOW

7K~18Kheatpumpmodel


Terminalontheoutdoorunit

24K coolingmodel


Power supply

1

1

N

N

2

2

3

3

1 N L

BROWN BLUE GREEN/YELLOW RED

WHITE BLUE

YELLOW

BROWN

BROWN

BROWNWHITE BLUE

RED YELLOWBLUE GREEN/YELLOW

GREEN/YELLOW

. 24K heat pump model

CAUTION

Thepowercord connectedtotheindoorunitshouldbe

compliedwiththefollowingspecifications

(TypeH05VV-F(Indoor),H07RN-F(Outdoor)approvedbyHARorSAA).

Thepowerconnectingcable connectedtotheindoor

andoutdoorunitshouldbecompliedwiththefollowing

specifications

(TypeH07RN-FapprovedbyHARorSAA).

Theconnectingcableconnectedtotheindoorandout-

doorunitshouldbecompliedwiththefollowingspecifi-

cations

(TypeH07RN-FapprovedbyHARorSAA).

NORMAL

CROSS-SECTIONAL

AREA 2.5mm2

(18K: 1.5mm2, 7K~14K: 1.0mm2)

NORMAL

CROSS-SECTIONAL

AREA 2.5mm2

(18K: 1.5mm2, 7K~14K: 1.0mm2)

NORMAL

CROSS-SECTIONAL

AREA 0.75mm2

Terminalontheoutdoorunit 1 N LL N

LTerminal on the indoor unit 1 2 3 N

L N

YELLOWWHITE

Power supply

RED

L N

GREEN/YELLOW

BROWN BLUE

BLUEBROWN

GREEN/YELLOW

YELLOWWHITE RED

1 2 3

.

Terminal on the outdoor unit

AirConditioner

Main power source

Circuit Breaker

Use a circuit

breaker or time

delay fuse.

Circuit Breaker

Use a 25A circuit

breaker or time

delay fuse.

AirConditioner

Main power source

~18KModel

Ifapowerplugisnottobeused,provideacircuitbreakerbetweenpowersourceandtheunitasshownbelow.

CAUTION

24K~Model

Ifapowerplugisnottobeused,provideacircuitbreakerbetweenpowersourceandtheunitasshownbelow.

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3.6.2Connectthecabletotheoutdoorunit

A.Removethecontrolcoverfromtheunitbyloosen-ingthescrew.

Connectthewirestotheterminalsonthecontrol

boardindividually.B.Securethecableontothecontrolboardwiththecordclamp.

C.Refixthecontrolcovertotheoriginalpositionwiththescrew.

D.Usearecognizedcircuitbreaker20A(18K),25A(24K)betweenthepowersourceandtheunit.Adisconnectingdevicetoadequatelydis-connectallsupplylinesmustbefitted.

Terminal block

Over 5mm

Control cover

Power cord

(power connecting

cable)

Connecting cable

Outdoor unit

CAUTION

Aftertheconfirmationoftheaboveconditions,preparethewiringasfollows:

1)Neverfailtohaveanindividualpowercircuitspecificallyfortheairconditioner.Asforthemethod

ofwiring,beguidedbythecircuitdiagrampostedontheinsideofcontrolcover.

2)Thescrewwhichfastenthewiringinthecasingofelectricalfittingsareliabletocomeloose

fromvibrationstowhichtheunitissubjectedduringthecourseoftransportation.Checkthem

andmakesurethattheyarealltightlyfastened.

(Iftheyareloose,itcouldcauseburn-outofthewires.)

3)Specificationofpowersource.

4)Confirmthatelectricalcapacityissufficient.

5)Seetothatthestartingvoltageismaintainedatmorethan90percentoftheratedvoltage

markedonthenameplate.

6)Confirmthatthecablethicknessisasspecifiedinthepowersourcespecification.

(Particularlynotetherelationbetweencablelengthandthickness.

7)Alwaysinstallanearthleakagecircuitbreakerinawetormoistarea.

8)Thefollowingwouldbecausedbyvoltagedrop.

Vibrationofamagneticswitch,whichwilldamagethecontactpoint,fusebreaking,disturbanceofthenormalfunctionoftheoverload.

9)Themeansfordisconnectionfromapowersupplyshallbeincorporatedinthefixedwiringand

haveanairgapcontactseparationofatleast3mmineachactive(phase)conductors.

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3.7CheckingtheDrainageandformingthepipings

3.7.1Checkingthedrainage

A.Toremovethefrontpanelfromtheindoorunit,

removethefrontpanelfromtheindoorunitcabinet.1)Settheairdirectionlouversup-and-downtotheposi-

tion(horizontally)byhand.2)Remove 3 screws that retain the f ront panel .

Pullthelowerleftandrightsidesofthegrilletowardyouandliftitoff.

ChassisGrille

Remove screws (3places)

B.Tocheckthedrainage.

1)Pouraglassofwaterontheevaporator.2)Ensurethewaterflowsthroughthedrainhoseofthe

indoorunitwithoutanyleakageandgoesoutthedrain

exit.

, ,

, ,

C.Drainpiping

Thedrainhoseshouldpointdownwardforeasydrainflow.

Downward slope

Donotmakedrainpiping.

AccumulatedDo not raise

drain water

Air Tip of drain hose Less thandipped in water

50mm gap

WaterWater WaterWaving

leakage Ditchleakage leakage

3.7.2Formthepiping

A.Formthepipingbywrappingtheconnectingportionoftheindoorunitwithinsulationmaterialandsecureitwithtwokindsofvinyltapes.

Ifyouwanttoconnectanadditionaldrainhose,theendofthedrainoutletshouldberoutedabovetheground.Securethedrainhoseappropriately.

B Incaseswheretheoutdoorunitisinstalledbelowtheindoorunitperformthefollowing.1)Tapethepiping,drainhoseandconnectingcablefrom

downtoup.2)Securethetappedpipingalongtheexteriorwallusing

saddleorequivalent.

Seal small openingsaround pipings with agum type sealer.

Taping

Drainhose

Pipings

Connecting

,

cable

Trap is required to prevent waterfrom entering into electrical parts.

C.IncaseswheretheOutdoorunitisinstalledabovetheIndoorunitperformthefollowing.

1)Tapethepipingandconnectingcablefromdowntoup.

2)Securethetapedpipingalongtheexteriorwall.Formatrap,topreventwaterenteringtheroom.

3)Fixthepipingontothewallbysaddleorequivalent.

Seal small openings

around pipings with agum type sealer.

Trap

,

Trap

Trap is required to prevent waterfrom entering into electrical parts.

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3.8Airpurging

3.8.1Airpurging

Airandmoistureremainingintherefrigerantsystem

haveundesirableeffectsasindicatedbelow.1)Pressureinthesystemrises.2)Operatingcurrentrises.3)Cooling(orheating)efficiencydrops.

4)Moistureintherefrigerantcircuitmayfreezeandblockcapillarytubing.

5)Watermayleadtocorrosionofpartsintherefrigera-

tionsystem.Therefore,theindoorunitandtubingbetweentheindoorandoutdoorunitmustbeleaktestedandevacuatedto

removeanynoncondensablesandmoisturefromthesystem.

3.8.2Airpurgingwithvacuumpump

A.PreparationCheck that each tube(both liquidandgassidetubes)

betweentheindoorandoutdoorunitshavebeenprop-

erlyconnectedandallwiringforthetestrunhasbeencompleted.Remove theservicevalve caps fromboththegasandtheliquidsideontheoutdoorunit.Note

thatboththeliquidandthegassideservicevalvesontheoutdoorunitarekeptclosedatthisstage.

B.Leaktest

Connectthemanifoldvalve(withpressuregauges)anddrynitrogengascylindertothisserviceportwith

chargehoses.

Besuretouseamanifoldvalveforairpurging.Ifitisnotavailable,useastopvalveforthispurpose.The"Hi"knobofthemanifoldvalvemustalwaysbekeptclose.

CAUTION

Pressurizethesystemtonomorethan150P.S.I.G.

withdrynitrogengasandclosethecylindervalvewhenthegaugereadingreached150P.S.I.G.Next,testfor

leakswithliquidsoap.

Toavoidnitrogenenteringtherefrigerantsysteminaliquidstate,thetopofthecylindermustbehigherthanitsbottomwhenyoupressurizethesystem.Usually,thecylinderisusedinaverticalstandingposition.

CAUTION

Doaleaktestofalljointsofthetubing(bothindoorandoutdoor)andbothgasandliquidsideservicevalves.Bubblesindicatealeak.Besuretowipeoffthesoap

withacleancloth.Afterthesystemisfoundtobefreeofleaks,relievethe

nitrogenpressurebylooseningthechargehosecon-

nectoratthenitrogencylinder.Whenthesystempres-sureisreducedtonormal,disconnectthehosefromthecylinder.

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14/15

Requiredtimeforevacuationwhen30gal/hvacuumpumpisused

10min.ormore 15min.ormore

Iftubinglengthisless

than10m(33ft)

iftubinglengthislonger

than10m(33ft)


Soapwatermethod

(1)Removethecapsfromthe2-wayand3-wayvalves.

(2)Removetheservice-portcapfromthe3-wayvalve.

(3)Toopenthe2-wayvalveturnthevalvestemcounter-clockwiseapproximately90,waitforabout2~3sec,and

closeit.(4)Applyasoapwateroraliquidneutraldetergentonthe

indoorunitconnectionoroutdoorunitconnectionsbyasoftbrushtocheckforleakageoftheconnectingpointsofthepiping.

(5)Ifbubblescomeout,thepipeshaveleakage.

C.EvacuationConnectthechargehoseenddescribedinthepreced-

ingstepstothevacuumpumptoevacuatethetubingandindoorunit.

Confirmthe"Lo"knobofthemanifoldvalveisopen.Then,runthevacuumpump.Theoperationtimeforevacuationvarieswithtubinglengthandcapacityofthepump.Thefollowingtable

showsthetimerequiredforevacuation.

Whenthedesiredvacuumisreached,closethe"Lo"knobofthemanifoldvalveandstopthevacuumpump.

D.Finishingthejob

1)Withaservicevalvewrench,turnthevalvestemofliq-

uidsidevalvecounter-clockwisetofullyopenthevalve.

2)Turn thevalve stemofgasside valvecounter-clock-

wisetofullyopenthevalve.3)Loosenthe chargehoseconnectedto thegasside

serviceportslightlytoreleasethepressure,then

removethehose.4)Replacetheflarenutanditsbonnetonthegasside

serviceportand fastentheflarenutsecurelywithan

adjustablewrench.Thisprocessisveryimportanttopreventleakagefromthesystem.

5)Replacetheservicevalvecapsatboththegasand

theliquidsideandfastenthemtight.Thiscompletesairpurgingwithavacuumpump.Theairconditionerisnowreadytotestrun.

Outdoor unitCover control

Gas side(Bigger diameta)

3-way valve Liquid side(close) (Smaller diameta)

Hexagonal2-way valvewrench(open)

Cap

Service port cap

Indoor unit

Outdoor unit

Manifold valve

PressureLo Hi

gauge

Open Close

Vacuum pump

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3.9Testrunning

1)Checkthatalltubingandwiringhavebeenproperlyconnected.

2)Checkthatthegasandliquidsideservicevalvesare

fullyopen.

A.Prepareremotecontrol

1)Removethebatterycoverbypullingitaccordingtothe arrow

direction.2)Insertnewbatteriesmakingsure

thatthe(+)and()of battery

areinstalledcorrectly.3)Reattachthecoverbypushingit

backintoposition.

NOTE:

Use1.5voltbatteries.Donotuserechargeablebatteries.

Removethebatteriesfromtheremotecontrolifthesystemisnotgoingtobeusedforalongtime.

B.Settlementofoutdoorunit

1) Anchortheoutdoorunitwitha bolt andnuttightlyandhorizontallyonaconcreteorrigidmount.

2)Wheninstallingonthewall,rooforrooftop,anchor

themountingbasesecurelywithanailorwireassum-ingtheinfluenceofwindandearthquake.3)Inthecasewhenthevibrationoftheunitisconveyed

tothehose,securetheunitwithananti-vibrationrub-ber.

Bolt

Tubing connection

C.Evaluationoftheperformance

Operateunitfor15~20minutes,thencheckthesystemrefrigerantcharge:1.Measurethepressureofthegassideservicevalve.

2.Measurethetemperatureoftheintakeanddischargeofair.

3.Ensurethedifferencebetweentheintaketemperatureandthedischargeismorethan8C(Cooling)or

reversely(Heating).

Discharge air

Intake temperature

Discharge temperature

4.Forreference;thegassidepressureofoptimumcondi-

tionisasbelow.(Cooling)

OutsideambientTEMP. Thepressureofthegassideservicevalve

35C(95F) 4~6kg/cm2.G(56.8~85.2P.S.I.G.)

NOTE:Iftheactualpressurearehigherthanshown,thesystemismostlikelyover-charged,andchargeshouldberemoved.Iftheactualpressurearelowerthanshown,thesystemismostlikelyundercharged,andchargeshouldbeadded.

Theairconditionerisnowreadyforuse.

PUMPDOWN

Thisisperformedwhentheunitistoberelocatedortherefrigerantcircuitisserviced.PumpDownmeanscollectingallrefrigerantintheout-doorunitwithoutlossinrefrigerantgas.

CAUTION:BesuretoperformPumpDownprocedurewiththeunitcoolingmode.

PumpDownProcedure1.Connectalow-pressuregaugemanifoldhosetothe

chargeportonthegassideservicevalve.

2.Openthegassideservicevalvehalfwayandpurgetheairfromthemanifoldhoseusingtherefrigerantgas.

3.Closetheliquidsideservicevalve(allthewayin).

4.Turnontheunit'soperatingswitchandstartthecoolingoperation.

5.Whenthelow-pressuregaugereadingbecomes1to0.5kg/cm2.G(14.2to7.1P.S.I.G.),fullyclosethegassidevalvestemandthenquicklyturnofftheunit.Atthattime,PumpDownhasbeencompletedandallrefrigerantgaswillhavebeencollectedintheoutdoorunit.

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Documents

2008 10 Aircon Installation Instruction