EMI EnviroAir Installation, Operation and Maintenance Manual

Brand: EMI

Model: EnviroAir

Category: Split-system air conditioners

Type: Installation, Operation and Maintenance Manual

This manual is also suitable for

EnviroAir MWHA

An ISO 9001-2008 Certied Company

ECR International, Inc.

2201 Dwyer Avenue,

Utica NY 13501

web site: www.ecrinternational.com

MZI Series

~16 SEER Inverter

Multi-Zone

Ductless Split Systems

Air Handler (Indoor) Models - MWHA

Condenser (Outdoor) Models - MHA

Installation, Operation and

Maintenance Manual

P/N 240009908, Rev B [04/05/2013]

SET TEMPERATURE(

ECONOMY

MODE

ON/ OFF

FAN SPEED

SWING

TIMER ON

TIMER OFF

RESET

LOC K

LED

DISPLAY

TURBO

F0LLOW

REFRIGERANT PIPE C ONNECTION

Refrigerant pipe connection ... .......................................... .............................................................

ELECTRICAL WORK

Electrical work ....... ........... ........................................................................................... ................

TEST RUNNING

Test running ...... ...................................... ...................................................... ................................

AIR PURGING

Air purging wi th vacuum pum p ........................................... ........................... ....................... ........14

Safety and leakage check .... ..................... ...................................................................................

SOCIABLE REMARK

Sociable remark.............................................................................................................................

SAFETY PRECAUTIONS

Warning ...................................... ............................. .....................................................................

Caution ..................... ........... .........................................................................................................

OPERATING INSTRUCTIONS

Identification of parts.. .................................. .................................... ........... ................ ....................

Operating temperature...................... ............................................................ ..................................

Manual operation................ ............. ........... ............................................................... .....................

SAFETYPRECAUTIONS

WARNING

ReadthefollowSAFETYPRECAUTIONScarefullybeforeinstallation.

Electricalworkmustbeinstalledbyalicensedelectrician.Besuretousethecorrectrating

ofthepowerplugandmaincircuitforthemodeltobeinstalled.

Incorrectinstallationduetoignoringoftheinstructionwillcauseharmordamage.

Theseriousnessisclassifiedbythefollowingindications.

Thissymbolindicatesthepossibilityofdeathorseriousinjury.

Theitemstobefollowedareclassifiedbythesymbols:

SymbolwithbackgroundwhitedenotesitemthatisPROHIBITEDfromdoing.

CAUTION

Thissymbolindicatesthepossibilityofinjuryordamagetoproperty.

WARNING

1)Engagedealerorspecialistforinstallation.Ifinstallationdonebytheuserisdefective,itwillcausewater

leakage,electricalshockfire.

2)Installaccordingtothisinstallationinstructionsstrictly.Ifinstallationisdefective,itwillcausewater

leakage,electricalshockfire.

3)Usetheattachedaccessoriespartsandspecifiedpartsforinstallation.otherwise,itwillcausethesettofall,

waterleakage,electricalshockfire.

4)Installatastrongandfirmlocationwhichisabletowithstandthesetsweight.Ifthestrengthisnotenough

orinstallationisnotproperlydone,thesetwilldropandcauseinjury.

5)Forelectricalwork,followthelocalnationalwiringstandard,regulationandthisinstallationinstructions.An

independentcircuitandsingleoutletmustbeused.Ifelectricalcircuitcapacityisnotenoughordefectfound

inelectricalwork,itwillcauseelectricalshockfire.

6)Usethespecifiedcableandconnecttightlyandclampthecablesothatnoexternalforcewillbeactedon

theterminal.Ifconnectionorfixingisnotperfect,itwillcauseheat-uporfireattheconnection.

7)Wiringroutingmustbeproperlyarrangedsothatcontrolboardcoverisfixedproperly.Ifcontrolboardcover

isnotfixedperfectly,itwillcauseheat-upatconnectionpointofterminal,fireorelectricalshock.

8)Whencarryingoutpipingconnection,takecarenottoletairsubstancesotherthanthespecified

refrigerantgointorefrigerationcycle.Otherwise,itwillcauselowercapacity,abnormalhighpressure

intherefrigerationcycle,explosionandinjury.

9)Donotmodifythelengthofthepowersupplycordoruseofextensioncord,anddonotsharethe

singleoutletwithotherelectricalappliances.Otherwise,itwillcausefireorelectricalshock.

CAUTION

1)Thisequipmentmustbeearthedandinstalledwithearthleakagecurrentbreaker.Itmaycauseelectrical

shockifgroundingisnotperfect.

2)Donotinstalltheunitatplacewhereleakageofflammablegasmayoccur.Incasegasleaksand

accumulatesatsurroundingoftheunit,itmaycausefire.

3)Carryoutdrainagepipingasmentionedininstallationinstructions.Ifdrainageisnotperfect,water

mayentertheroomanddamagethefurniture.

Selectinginstallationplace

Readcompletely,thenfollowstepbystep.

Indoorunit

Donotexposetheindoorunittoheatorsteam.

Selectaplacewheretherearenoobstacles

infrontoraroundtheunit.

Makesurethatcondensationdrainagecan

beconvenientlyroutedaway.

Donotinstallnearadoorway.

Ensurethatthespaceontheleftandright

oftheunitismorethan12cm.

Useastudfindertolocatestudstopreventunnecessarydamagetothewall.

Theindoorunitshouldbeinstalledonthewallataheightof2.0metresormorefromthefloor.

Theindoorunitshouldbeinstalledallowingaminimumclearanceof15cmfromtheceiling.

Anyvariationsinpipelengthwill/mayrequireadjustmenttorefrigerantcharge.

Thereshouldnotbeanydirectsunlight.Otherwise,thesunwillfadetheplasticcabinetand

affectitsappearance.Ifunavoidable,sunlightpreventionshouldbetakenintoconsideration.

Outdoorunit

Ifanawningisbuiltovertheoutdoorunitto

preventdirectsunlightorrainexposure,

makesurethatheatradiationfromthe

condenserisnotrestricted.

Ensurethattheclearancearoundtheback

oftheunitismorethan30cm

.Thefrontoftheunitshould

havemorethan200cmofclearanceandthe

connectionside(rightside)shouldhavemore

than60cmofclearance.

Donotplaceanimalsandplantsinthepathoftheairinletoroutlet.

Taketheairconditionerweightintoaccountandselectaplacewherenoiseandvibration

willnotbeanissue.

Selectaplacesothatthewarmairandnoisefromtheairconditionerdonotdisturbneighbors.

Iftheoutdoorunitisinstalledonaroofstructure,besuretoleveltheunit.

Ensuretheroofstructureandanchoringmethodareadequatefortheunitlocation.

Consultlocalcodesregardingrooftopmounting.

Iftheoutdoorunitisinstalledonroofstructuresorexternalwalls,thismayresultin

excessivenoiseandvibration,andmayalsobeclassedasanonserviceableinstallation.

andleftsideis

morethan30cm

Rooftopinstallation:

INSTALLATIONINSTRUCTIONS

Fig.2

Fig.1

1.Wall-mountedtype

Accessories

INSTALLATIONINSTRUCTIONS

Note: Excepttheabovepartsprovided,theotherpartsneededduringinstallationyoumust

purchase.

Levelgauge

Screwdriver

Electricdrill,Holecoredrill(65φ mm)

Flaringtoolset

Specifiedtorquewrenches:1.8kgf.m,4.2kgf.m,

5.5kgf.m,6.6kgf.m(differentdependingonmodelNo.)

Spanner(halfunion)

Hexagonalwrench(4mm)

Gas-leakdetector

Toolsneededforinstallation:

Vacuumpump

Gaugemanifold

Usersmanual

Thermometer

Multimeter

Pipecutter

Measuringtape

Partsyoumustpurchase

Consultthetechnician

forthepropersize.

6.35

9.53

12.7

Self-tappingScrewBST2.9X10

Remotecontroller

InstallationPlate

NameofAccessories

Self-tappingScrewAST3.9X25

Seal(forcooling&heatingmodelsonly)

DrainJoint

Magneticring

(Hitchitontheconnectivecablebetweenindoor

unitandoutdoorunitafterinstallation.)

Transferconnector

()

(Pipesizedifferfromappliancetoappliance.

Tomeetdifferentpipesizerequirement,sometimes

thepipeconnectionsneedthetransferconnector

toinstallontheoutdoorunit.)

NOTE:

Packedwiththeindoorunit

Connecting

pipe

Assembly

Liquidside

PlasticExpansionSheath

Number

Qty/oneunit’

Gasside

Remotecontrollerholder

(forcooling&heatingmodelsonly)

5-8

(dependingonmodels)

5-8

(dependingonmodels)

Optionalpart

(onepiece/onecable)

(onsomemodels)

Optional

parts

Thisillustrationisforexplanationpurposesonly.

Theactualshapeofyouraircondtionermaybe

slightlydifferent.

Copperlinesmustbeinsulatedindependently

Useastudfindertolocatestudstoprevent

unnecessarydamagetothewall.

Aminimumpiperunof3metresisrequired

tominimisevibration&excessivenoise.

TwooftheA,BandCdirectionsshouldbe

freefromobstructions.

CAUTION

INSTALLATIONINSTRUCTIONS

CAUTIONS

One-Two

One-Three

One-Four

One-Five

Remote

controller

Remote

controller

Remote

controller

Remote

controller

Morethan15cm

Remote

controller

Airout

Loopa

connective

cable

Fig.3

INSTALLATIONINSTRUCTIONS

Fig.4

Correctorientation

ofInstallationPlate

Wall

Indoor

Outdoor

Fig.6

Fig.5

Indoorunitinstallation(wall-mountedtype)

2.Drillaholeinthewall

Note:

1.FittheInstallationPlate

1.Fittheinstallationplatehorizontally

onstructuralpartsofthewallwith

spacesaroundtheinstallationplate.

2.Ifthewallismadeofbrick,concrete

orthelike,drillfiveoreight5mmdiameter

holesinthewall.InsertClipanchorfor

appropriatemountingscrews.

3.Fittheinstallationplateonthewall

withfiveoreighttype “A” screws.

FittheInstallationPlateanddrill

holesinthewallaccordingtothe

wallstructureandcorresponding

mountingpointsontheinstallation

plate.TheInstallationPlatemaybe

slightlydifferentaccordingtothe

differentmodelsofindoorunit.

(Dimensionsarein “mm” unless

otherwisestated)

1.Determineholepositionsaccording

tothediagramdetailedinFig.5.Drill

one(1)hole(65mm)slantingslightly

tooutdoorside.

2.Alwaysusewallholeconduitwhen

drillingmetalgrid,metalplateorthelike.

3.ConnectivePipeandDrainage

Installation

1.Runthedrainhoseslopingdownward.

Donotinstallthedrainhoseas

illustratedinFig.7.

Drainage

Fig.7

Donotblockwaterflowbyarise.

Donotputtheendof

drainhoseintowater.

150mmormoretoceiling

Indoorunitoutline

Installationplate

Rightrearside

refrigerant

pipehole65

Leftrearside

refrigerant

pipehole65

120mmor

moretowall

120mmor

moretowall

918

190

150

Rightrearside

refrigerant

pipehole65

Installationplate

Indoorunitoutline

Leftrearside

refrigerant

pipehole65

150mmormoretoceiling

120mmor

moretowall

120mmor

moretowall

ModelA(A:710,B:250,C:100,D:110)

ModelA(A:920,B:293,C:150,D:185)

ModelB()A:790,B:265,C:100,D:150

ModelB()A:790,B:275,C:100,D:85

ModelC()A:850,B:290,C:100,D:115

ModelB()A:995,B:293,C:150,D:200

ModelC()A:850,B:305,C:150,D:145

INSTALLATIONINSTRUCTIONS

1.Fortheleft-handandright-handpiping,

removethepipecoverfromtheside

panel.

2.Fortherear-right-handandrear-left-hand

piping,installthepipingasshowninFig.10.

3.Fixtheendoftheconnectivepipe.(Refer

toTighteningConnectioninREFRIGERANT

PIPINGCONNECTION)

Connectivepipeinstallation

2.Whenconnectingextensiondrainhose,

insulatetheconnectingpartofextension

drainhosewithashieldpipe,donotlet

thedrainhoseslack.

Right-handpiping

Left-handpiping

Rear-rightpiping

Rear-leftpiping

Fig.8

Fig.9

Fig.10

4.Pipingandwrapping

Bundlethetubing,connectingcable,anddrain

hosewithtapesecurely,evenlyasshownin

Fig.11.

Becausethecondensedwaterfromrearofthe

indoorunitisgatheredinpondingboxandis

pipedoutofroom.Donotputanythingelsein

thebox.

Indoorunit

Connective

pipe

Piperoom

Pondingbox

Wrappingbelt

Connective

cable

Drainhose

Fig.11

Connecttheindoorunitfirst,thenthe

outdoorunit.

Donotallowthepipingtoletoutfrom

thebackoftheindoorunit.

Becarefulnottoletthedrainhoseslack.

Heatinsulatedbothoftheauxiliarypiping.

Besurethatthedrainhoseislocatedat

thelowestsideofthebundle.Locating

attheuppersidecancausedrainpan

tooverflowinsidetheunit.

Neverintercrossnorintertwistthepower

wirewithanyotherwiring.

Runthedrainhoseslopeddownwardto

drainoutthecondensedwatersmoothly.

CAUTION

INSTALLATIONINSTRUCTIONS

Fig.12

1.Passthepipingthroughtheholeinthe

wall.

2.Puttheupperclawatthebackofthe

indoorunitontheupperhookofthe

installationplate,movetheindoorunit

fromsidetosidetoseethatitissecurely

hooked(seeFig.12).

3.Pipingcaneasilybemadebyliftingthe

indoorunitwithacushioningmaterial

betweentheindoorunitandthewall.

Getitoutafterfinishpiping.

4.Pushthelowerpartoftheindoorunitup

onthewall,thenmovetheindoorunit

fromsidetoside,upanddowntocheck

ifitishookedsecurely.

4.Indoorunitinstallation

(R410A)

Max.50m

(R407c/R22)

Max.10m

Max.5m

(R410A)

(R407c/R22)

10.5KW

Settlementofoutdoorunit

Anchortheoutdoorunitwith

aboltandnut10or8tightly

andhorizontallyonaconcrete

orrigidmount.

φφ

Fig.45

Installtheoutdoorunitonarigidbaseto

preventincreasingnoiselevelandvibration.

Determinetheairoutletdirectionwherethe

dischargedairisnotblocked.Inthecasethat

theinstallationplaceisexposedtostrongwind

suchasaseaside,makesurethefanoperating

properlybyputtingtheunitlengthwisealongthe

wallorusingadustorshieldplates.

Speciallyinwindyarea,installtheunittoprev-

enttheadmissionofwind.Ifneedsuspending

installation,theinstallationbracketshould

accordwithtechniquerequirementinthe

installationbracketdiagram.

Theinstallationwallshouldbesolidbrick,

concreteorthesameintensityconstruction,or

actionstoreinforce,dampingsupportingshould

betaken.Theconnectionbetweenbracketand

wall,bracketandtheairconditionershouldbe

firm,stableandreliable.

Besurethereisnoobstaclewhichblock

radiatingair.

Strong

wind

Fig.44

Outdoorunitinstallation

Outdoorinstallationprecaution

INSTALLATIONINSTRUCTIONS

530

560

290

335

624

366

590

333

760x590x285

845x700x320

900x860x315

990x965x345

L2(mm)

W2(mm)

Mountingdimensions

Fitthesealintothedrainjoint,theninsertthe

drainjointintothebasepanholeofoutdoorunit,

rotate90tosecurelyassemblethem.

Connectingthedrainjointwithanextensiondrain

hose(Locallypurchased),incaseofthewater

drainingofftheoutdoorunitduringtheheating

mode.

。

Drainjointinstallation

Seal

Drainjoint

Basepanholeof

outdoorunit

Seal

Drainpipe

Refrigerantpipeconnection

Oblique

。

Roughness Burr

Maincauseforrefrigerantleakage

isduetodefectintheflaringwork.

Carryoutcorrectflaringwork

usingthefollowingprocedure:

1.Usethepipingkitaccessoryorpipes

purchasedlocally.

2.Measurethedistancebetweentheindoor

andtheoutdoorunit.

3.Cutthepipesalittlelongerthanthe

measureddistance.

4.Cutthecable1.5mlongerthanthepipe

length.

A:Cutthepipesandthecable.

1.Flaringwork

Fig.46

B:Burrremoval

1.Completelyremoveallburrsfromthecut

crosssectionofpipe/tube.

2.Puttheendofthecoppertube/pipeina

downwarddirectionasyouremoveburrsin

ordertoavoiddroppingburrsintothetubing.

Pipe

Reamer

Pointdown

Fig.47

Fig.48

C:Puttingnuton

Removeflarenutsattachedtoindoorand

outdoorunit,thenputthemonpipe/tube

havingcompletedburrremoval.(notpossible

toputthemonafterflaringwork)

Flarenut

Coppertube

Fig.49

REFRIGERANTPIPECONNECTION

(1)

(2)

NOTE:Thedrainjointdifferfromappliance

toappliance.

ELECTRICALWORK

Bar

Copperpipe

Clamphandle

Redarrowmark

Cone

Yoke

Handle

Bar

Fig.50

D:Flaringwork

Firmlyholdcopperpipeinadieinthe

dimensionshowninthetablebelow.

Caution

Alignthecenterofthepipes.

Sufficientlytightentheflare

nutwithfingers,andthentighten

itwithaspannerandtorquewrench

asshowninFig.51&52.

TighteningConnection

Excessivetorquecanbreaknut

dependingoninstallationconditions.

Outerdiam.

(mm)

A(mm)

Max.

Min.

6.35 1.3 0.7

9.53

1.6 1.0

12.7

1.8

1.0

Fig.52

Indoorunittubing Flarenut Pipings

Fig.51

ElectricsafetyregulationsfortheinitialInstallation

1.Ifthereisserioussafetyproblemaboutthepowersupply,thetechniciansshouldrefuse

toinstalltheairconditionerandexplaintotheclientuntiltheproblemissolved.

2.Powervoltageshouldbeintherangeof90%~110%ofratedvoltage.

3.Thecreepageprotectorandmainpowerswitchwitha1.5timescapacityofMax.Current

oftheunitshouldbeinstalledinpowercircuit.

4.Ensuretheairconditionerisgroundedwell.

7.Anindividualbranchcircuitandsinglereceptacleusedonlyforthisairconditionermustbeavailable.

5.AccordingtotheattachedElectricalConnectionDiagramlocatedonthepaneloftheoutdoor

unittoconnectthewire.

6.Allwiringmustcomplywithlocalandnationalelectricalcodesandbeinstalled

byqualifiedandskilledelectricians.

12.7

1.8

1.0

Electricalwork

Outer

diam.

Tightening

torque(N.cm)

Additionaltightening

torque(N.cm)

6.35

12.7

9.52

1500

(153kgf.cm)

1600

(163kgf.cm)

3500

(357kgf.cm)

3600

(367kgf.cm)

2500

(255kgf.cm)

2600

(265kgf.cm)

ELECTRICALWORK

Fig.53

Connectthecabletotheoutdoorunit

1.Removetheelectricalcontrolboardcover

fromtheoutdoorunitbylooseningthescrew

asshowninFig.53.

2.Connecttheconnectivecablestothe

terminalsasidentifiedwiththeirrespective

matchednumbersontheterminalblockof

indoorandoutdoorunits.

3.Securethecableontothecontrolboardwith

thecordclamp.

4.Topreventtheingressofwater,fromaloop

oftheconnectivecableasillustratedinthe

installationdiagramofindoorandoutdoor

units.

5.Insulateunusedcords(conductors)with

PVC-tape.Processthemsotheydonot

touchanyelectricalormetalparts.

Wiringconnection

NOTE:Beforeperforminganyelectrical

work,turnoffthemainpowertothesystem.

ConnectionCable

10mm

40mm

CAUTIONS

Donottouchthecapacitorevenifyou

havedisconnectedthepowerforthereis

stillhighvoltagepoweronit,orelectric

shockhazardmayoccur.Foryoursafety,

youshouldstartrepairingatleast5minutes

laterafterthepowerisdisconnected.

ThepowerissuppliedfromtheOutdoor

Unit.TheIndoorUnitsareconnected

withsignalwiresorpowercordsare

connectedreliablyandcorrectly,orthe

airconditionercouldnotrunnormally.

Fig.54

CAUTIONS

Makesuretoconnecttheindoorunit(A,B,C,D,

E)totheHiandLovalveandterminalsofsignal

wires(A,B,C,D,E)ofoutdoorunitasidentified

withtheirrespectivematchedconnection.

Wrongwiringconnectionsmaycausesome

electricalpartstomalfunction.

Minimumnorminalcross-sectionalarea

ofconductors:

Ratedcurrentofappliance

(A)

Nominalcross-sectional

area(mm)

>3and<6

>6and<10

>10and<16

>16and<25

0.75

1.5

2.5

Screw

Cover

Connectivecable

ofindoorunitand

outdoorunit

Connectivecable

ofindoorunitand

outdoorunit

Connectivecable

ofindoorunitand

outdoorunit

Connectivecable

ofindoorunitand

outdoorunit

Connectivecable

ofindoorunitand

outdoorunit

One-two One-three One-four

One-five

POWER

TOA

TOB

L(A)

L(B)

N(A) N(B)

S(A)

S(B)

One-twomodels:

One-threemodels:

One-fourmodels:

One-fivemodels:

Fig.55

S(A)

L(A)

N(A)

TOA

L(A)

N(A)

S(A)

NOTE:pleaserefertothefollowingfigures,iftheclientwantwirebythemselves.

ELECTRICALWORK

SUPPLY

TOA

SUPPLY

Y/G

TOA

TOB

SUPPLY

Y/G

TOB

TOC

TOD

TOE

ModelA

ModelB

Magneticring(notsupplied,

optionalpart)

ModelB

TOB

TOA

L(B)

N(B)

S(B)

L(A)

N(A)

S(A)

(Usedtohitchtotheconnective

cableofindoorandoutdoor

unitsafterinstallation.)

Aftertheconfirmationoftheaboveconditions,preparethewiringasfollows:

1)Neverfailtohaveanindividualpowercircuitspecificallyfortheairconditioner.Asfor

themethodofwiring,beguidedbythecircuitdiagrampostedontheinsideofcontrol

cover.

2)Thescrewwhichfastenthewiringinthecasingofelectricalfittingsareliabletocome

loosefromvibrationstowhichtheunitissubjectedduringthecourseof

transportation.Checkthemandmakesurethattheyarealltightlyfastened.(Ifthey

areloose,itcouldcauseburn-outofthewires.)

3)Specificationofpowersource.

4)Confirmthatelectricalcapacityissufficient.

5)Seetothatthestartingvoltageismaintainedatmorethan90percentoftherated

voltagemarkedonthenameplate.

6)Confirmthatthecablethicknessisasspecifiedinthepowersourcespecification.

7)Alwaysinstallanearthleakagecircuitbreakerinawetormoistarea.

8)Thefollowingwouldbecausedbyvoltagedrop.

Vibrationofamagneticswitch,whichwilldamagethecontactpoint,fusebreaking,disturbanceofthe

normalfunctionoftheoverload.

9)Themeansfordisconnectionfromapowersupplyshallbeincorporatedinthefixed

wiringandhaveanairgapcontactseparationofatleast3mmineachactive(phase)

conductors.

Airandmoistureintherefrigerantsystemhaveundesirableeffectsasindicatedbelow:

Pressureinthesystemrises.

Operatingcurrentrises.

Coolingorheatingefficiencydrops.

Moistureintherefrigerantcircuitmayfreezeandblockcapillarytubing.

Watermayleadtocorrosionofpartsintherefrigerationsystem.

Therefore,theindoorunitandtubingbetweentheindoorandoutdoorunitmustbeleaktested

andevacuatedtoremoveanynoncondensablesandmoisturefromthesystem.

●

Airpurgingwithvacuumpump

●

Preparation

Checkthateachtube(bothliquidandgassidetubes)betweentheindoorandoutdoorunits

havebeenproperlyconnectedandallwiringforthetestrunhasbeencompleted.Remove

theservicevalvecapsfromboththegasandtheliquidsideontheoutdoorunit.Notethat

boththeliquidandthegassideservicevalvesontheoutdoorunitarekeptclosedatthis

stage.

●

Pipelengthandrefrigerantamount:

Connective

pipelength

Lessthan5m

Morethan5m

Airpurging

method

Usevacuum

pump.

Usevacuum

pump.

Additionalamountofrefrigeranttobecharged

AIRPURGING

Airpurging

R22:(Pipelength-5m)x30g/m

R410A:(Pipelength-5m)x15g/m

R407c:(Pipelength-5m)x30g/m

AIRPURGING

Whenrelocatetheunittoanotherplace,

performevacuationusingvacuumpump.

Makesuretherefrigerantaddedintotheair

conditionerisliquidforminanycase.

(NotapplicabletotheunitsadoptfreonR22)

Openthevalvestemuntilithitsagainstthe

stopper.Donottrytoopenitfurther.

Securelytightenthevalvestemcapwitha

spannerorthelike.

Valvestemcaptighteningtorque(See

Tighteningtorquetableinpreviouspage).

Outdoor

unit

Indoor

unit

Refrigerant

Flarenut

Stopper

Cap

Valvebody

Packedvalve Halfunion

Gasside

Liquidside

Valvestem

Fig.56

Fig.57

WhenUsingtheVacuumPump

(Formethodofusingamanifoldvalve,refer

toitsoperationmanual.)

1.Completelytightentheflarenuts,A,B,C,D,

valvechargehosetoa

chargeportofthelow-pressurevalveonthe

gaspipeside.

2.Connectthechargehoseconnectiontothe

vacuumpump.

3.FullyopenthehandleLoofthemanifoldvalve.

4.Operatethevacuumpumptoevacuate.After

slightlyloosetheflarenut

oftheLovalveonthegaspipeside

checkthattheairisentering(Operationnoise

pumpchangesanda

commeterindicates0insteadofminus)

5.Aftertheevacuationiscomplete,fullyclose

manifoldvalveandstop

theoperationofthevacuumpump.Make

evacuationfor15minutesormore

compoundmeterindicates

-76cmHg(-1x10Pa).

6.TurnthestemofthepackedvalveBabout

45counterclockwisefor6~7secondsafter

thegascomingout,thentightentheflarenut

again.Makesurethepressuredisplayinthe

pressureindicatorisalittlehigherthanthe

atmospherepressure.

7.RemovethechargehosefromtheLow

pressurechargehose.

8.FullyopenthepackedvalvestemsBandA.

9.Securelytightenthecapofthepackedvalve.

connectthemanifold

startingevacuation,

and

ofthevacuum

pound

thehandleLoofthe

andcheck

thatthe

Manifoldvalve

Compoundmeter

-76cmHg

HandleLo

HandleHi

Chargehose

Vacuumpump

Pressuregauge

Lowpressurevalve

Fig.58

Cautioninhandlingthepackedvalve

Performtheelectricsafecheckafter

completinginstallation:

1.Insulatedresistance

Theinsulatedresistancemustbemorethan

2M.

2.Groundingwork

Afterfinishinggroundingwork,measurethe

groundingresistancebyvisualdetectionand

groundingresistancetester.Makesurethe

groundingresistanceislessthan4.

3.Electricalleakagecheck(performingduring

testrunning)

Duringtestoperationafterfinishinginstallation,

theservicemancanusetheelectroprobeand

multimetertoperformtheelectricalleakage

check.Turnofftheunitimmediatelyifleakage

happens.Checkandfindoutthesolution

waystilltheunitoperateproperly.

A:LopackedvalveB:Hipackedvalve

CandDareendsofindoorunitconnection.

CAUTION

Electricalsafetycheck●

Gasleakcheck●

Applyasoapwateroraliquidneutral

detergentontheindoorunitconnection

oroutdoorunitconnectionsbyasoft

brushtocheckforleakageofthe

connectingpointsofthpiping.Ifbubbles

comeout,thepipeshaveleakage.

Soapwatermethod:

Leakdetector

Usetheleakdetectortocheckforleakage.

Safetyandleakagecheck

Indoorunit

checkpoint

Outdoorunit

checkpoint

a,b,c,d,h,i,j,karepointsforone-twotype.

a,b,c,d,e,f,,h,i,j,k,m,narepointsforone-threetype.

A,B,C,Darepointsforone-fourtype.

A,B,C,D,Earepointsforone-fivetype.

Indoorunit

checkpoint

Outdoorunit

checkpoint

AIRPURGING

Fig.59

Fig.60

NOTE: Theillustrationisforexplanation

purposeonly.TheactualorderofA,B,C

DandEonthemachinemaybeslightly

differentfromtheunityoupurchased.The

actualshapeshallprevail.

Testrunning

Performtestoperationaftercompletinggasleakcheckattheflarenutconnectionsand

electricalsafetycheck.

Checkthatalltubingandwiringhavebeenproperlyconnected.

Checkthatthegasandliquidsideservicevalvesarefullyopen.

1.Connectthepower,presstheON/OFFbuttonontheremotecontrollertoturntheuniton.

2.UsetheMODEbuttontoselectCOOL,HEAT,AUTOandFANtocheckifallthefunctions

workswell.

3.Whentheamienttemperatureistoolow(lowerthan17C),theunitcannotbecontrolledby

theremotecontrollertorunatcoolingmode,manualoperationcanbetaken.Manual

operationisusedonlywhentheremotecontrollerisdisableormaintenancenecessary.

PresstheManualcontrolbuttontoselecttheAUTOorCOOL,theunitwilloperateunder

ForcedAUTOorCOOLmode(seeUserManualfordetails).

4.Thetestoperationshouldlastabout30minutes.

Holdthepanelsidesandliftthepaneluptoanangleuntilitremainsfixedwithaclicking

sound.

Manualcontrol

Button

TESTRUNNING

Fig.61

Manualcontrol

button

AUTO/COOL

Beforeusingyourairconditioner,pleaseread

thismanualcarefullyandkeepitforfuturereference.

INVERTERONE-TWO/ONE-THREE/ONE-FOURSPLIT-TYPE

ROOMAIRCONDITIONER

ReadThisManual

Insideyouwillfindmanyhelpfulhintsonhow

touseandmaintainyourairconditionerproperly.

Justalittlepreventativecareonyourpartcan

saveyouagreatdealoftimeandmoneyover

thelifeofyourairconditioner.You'llfindmany

answerstocommonproblemsinthechartof

troubleshootingtips.Ifyoureviewthechartof

TroubleshootingTipsfirst,youmaynotneed

tocallforservice.

SOCIABLEREMARK

DISPOSAL: Donotdisposethisproductasunsortedmunicipalwaste.Collectionofsuchwaste

separatelyforspecialtreatmentisnecessary.

Itisprohibitedtodisposeofthisapplianceindomestichouseholdwaste.

Fordisposal,thereareseveralpossibilities:

A)Themunicipalityhasestablishedcollectionsystems,whereelectronicwastecanbedisposedofat

leastfreeofchargetotheuser.

B)Whenbuyinganewproduct,theretailerwilltakebacktheoldproductatleastfreeofcharge.

C)Themanufacturewilltakebacktheoldappliancefordisposalatleastfreeofchargetotheuser.

D)Asoldproductscontainvaluableresources,theycanbesoldtoscrapmetaldealers.

Wilddisposalofwasteinforestsandlandscapesendangersyourhealthwhenhazardoussubstances

leakintotheground-waterandfindtheirwayintothefoodchain.

WhenusingthisairconditionerintheEuropeancountries,thefollowinformationmustbe

followed:

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EMI EnviroAir Installation, Operation and Maintenance Manual

Brand: EMI

Model: EnviroAir

Category: Split-system air conditioners

Type: Installation, Operation and Maintenance Manual

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EMI EnviroAir Installation, Operation and Maintenance Manual

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