1887873 User Manual

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7. Electricalwork

Indoor unit model SLZ

WiringWireNo.

×size(mm

)

Indoorunit-Outdoorunit *1 3×AWG16(polar)

Indoorunit-Outdoorunitearth *1 1×Min.AWG16

Indoor unit earth 1×Min.AWG16

Remotecontroller-Indoorunit *2 2×AWG22(Non-polar)

Circuit rating

Indoorunit(Heater)L-N *3 —

Indoorunit-OutdoorunitS1-S2 *3 208/230VAC

Indoorunit-OutdoorunitS2-S3 *3 24VDC

Remotecontroller-Indoorunit *3 12VDC

7.1. Indoorunitpowersuppliedfromoutdoorunit

Thefollowingconnectionpatternsareavailable.

Theoutdoorunitpowersupplypatternsvaryonmodels.

B C

A Outdoorunitpowersupply

B Earth leakage breaker

C Wiringcircuitbreakerorisolatingswitch

D Outdoor unit

E Indoorunit/outdoorunitconnectingcables

F Remote controller

G Indoor unit

*1.<For09-18outdoorunitapplication>

 Max.45m,148ft

 IfAWG13(2.5mm

)used,Max.50m,165ft

 IfAWG13(2.5mm

)usedandS3separated,Max.80m,263ft

*2.Max.500m,1640ft.

 (Whenusing2remotecontrollers,themaximumwiringlengthfortheremotecontrollercablesis200m,656ft.)

*3.TheguresareNOTalwaysagainsttheground.

 S3terminalhas24VDCagainstS2terminal.HoweverbetweenS3andS1,theseterminalsarenotelectricallyinsulatedbythetransformerorotherdevice.

Notes: 1. Wiringsizemustcomplywiththeapplicablelocalandnationalcode.

Powersupplycordsandindoorunit/outdoorunitconnectingcordsshallnotbelighterthanpolychloroprenesheathedexiblecord.(Design60245IEC57)

 3. Installanearthlongerthanothercables.

 4. Indoorandoutdoorconnectingwireshavepolarities.Makesuretomatchtheterminalnumber(S1,S2,S3)forcorrectwirings.

5. Wiringforremotecontrollercableshallbeapart(5cm,2inchormore)frompowersourcewiringsothatitisnotinuencedbyelectricnoisefrom

powersourcewiring.

1:1 System

Neversplicethepowercableortheindoor-outdoorconnectioncable,otherwiseitmayresultinasmoke,areorcommunicationfailure.

Warning:

7.2. Indoorunit(Fig.7-1)(Fig.7-2)(Fig.7-3)

Workprocedure

1.Loosenthetwoscrewssecuringtheelectriccomponentcover,andthenslideand

removethecover.

2. Route the wires along the wiring routes and through the wire inlets in the electric

componentbox.

 (Procurethepowersupplycordandindoor/outdoorunitconnectingcablelocally.)

3.Securelyconnectthepowersupplycordandtheindoor/outdoorunitconnecting

cable to the terminal block.

4.Securethewireswiththecablestrapsinsidetheelectriccomponentbox.

Secure the wires with cable straps as cushioning components so that no stress is

applied to the connecting sections of the terminal block when tension is generated.

5.Installtheelectriccomponentcover.

 Makesurethatthewiresdonotgetpinched.

• Donotallowslackeningoftheterminalscrews.

• Tapeisafxedovertheconduitholeusedforconnectingtheelectricwiring.

 Pleaseremovethistapeifmakingaconnectionthroughthehole.

Warning:

• Inserthooktheelectriccomponentcoverintothebentsupportontheelectric

componentboxandattachthecoversecurely.Ifitisattachedincorrectly,it

couldresultinare,electricshockduetodust,water,etc.

• Usethespeciedindoor/outdoorunitconnectingcabletoconnecttheindoor

andoutdoorunitsandxthecabletotheterminalblocksecurelysothatno

stressisappliedtotheconnectingsectionoftheterminalblock.Incomplete

connectionorxingofthecablecouldresultinare.

Fig.7-1

A Electriccomponentcover

B Electriccomponentbox

C EntryforIndoor-Outdoorconnectingcable

D Entry for wired remote controller cable

E Cable clamp

F Indoor/Outdoorunitconnectingterminal

G Wiredremotecontrollerterminal

H Indoor controller

I Earth cable

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User Manual - Page 8