PUMY-SP112YKMD User Manual

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1. Useaseparatepowersupplyfortheoutdoorunitandindoorunit.

2. Bearinmindambientconditions(ambienttemperature,directsunlight,rainwater,etc.)whenproceedingwiththewiringandconnections.

3. Thewiresizeistheminimumvalueformetalconduitwiring.Thepowercordsizeshouldbe1rankthickerconsiderationofvoltagedrops.

 Makesurethepower-supplyvoltagedoesnotdropmorethan10%.

4. Specicwiringrequirementsshouldadheretothewiringregulationsoftheregion.

5. Powersupplycordsofpartsofappliancesforoutdooruseshallnotbelighterthanpolychloroprenesheathedexiblecord(design60245IEC57).Forexample,

usewiringsuchasYZW.

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

Sample chart

6. Electricalwork

Warning:

• Please turn off the main power supply when servicing.And do not touch the B1, B2 terminals when the power is energized. If isolator should be used

betweenoutdoorunitandbranchbox/indoorunitandbranchbox,pleaseuse2-poletype.

(Pleaserefertogurebelow.)

Caution:

Afterusingtheisolator,besuretoturnoffandonthemainpowersupplytoresetthesystem.Otherwise,theoutdoorunitmaynotbeabletodetectthebranch

box(es)orindoorunits.

Besuretoconnecttheoutdoor-branchbox/indoor-branchboxconnectingcablesdirectlytotheunits(nointermediateconnections).

Intermediateconnectionscanlead to communication errors if water entersthecablesandcauses insufcient insulation to ground or a poorelectricalcontactat the

intermediate connection point.

(If an intermediate connection is necessary, be sure to take measures to prevent water from entering the cables.)

Outdoor unit

2 poles isolator (Switch)

Branch box

Warning:

• Besuretousespeciedwirestoconnectsothatnoexternalforceisimpartedtoterminalconnections.Ifconnectionsarenotxedrmly,itmaycauseheat-

ingorre.

• Besuretousetheappropriatetypeofovercurrentprotectionswitch.Notethatgeneratedovercurrentmayincludesomeamountofdirectcurrent.

• Besuretoattachtheterminalblockcovers/paneloftheoutdoorunitsecurely.

 Ifitisnotattachedcorrectly,ifcouldresultinareoranelectricshockduetodust,water.etc.

Caution:

• Becarefulnottomakemis-wiring.

• Firmlytightentheterminalscrewstopreventthemfromloosening.

• Aftertightening,pullthewireslightlytoconrmthattheynotmove.

• Iftheconnectingwireisincorrectlyconnectedtotheterminalblock,theunitdoesnotoperatenormally.

• Someinstallationsitemayrequireattachmentofanearthleakagebreaker.Ifnoearthleakagebreakerisinstalled,itmay

causeanelectricshock.

• Donotuseanythingotherthanbreakerandfusewithcorrectcapacity.Usingfuseandwireorcopperwirewithtoolarge

capacitymaycauseamalfunctionofunitorre.

IMPORTANT

Makesurethatthecurrentleakagebreakerisonecompatiblewithhigherharmonics.

Alwaysuseacurrentleakagebreakerthatiscompatiblewithhigherharmonicsasthisunitisequippedwithaninverter.

Theuseofaninadequatebreakercancausetheincorrectoperationofinverter.

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

<Exampleof“F2”calculation>

Condition PEFY-VMS1 × 4 + PEFY-VMA × 1, C = 8 (refer to right sample chart)

F2=19.8×4/8+38×1/8

= 14.65

*3 Current sensitivity is calculated using the following formula.

G1={V2×(QuantityofType1)}+{V2×(QuantityofType2)}+···+{V2×(QuantityofType16)}

 +{V3×(Wirelength[km])}

G1 Current sensitivity

30 or less 30 mA 0.1 sec or less

100 or less 100 mA 0.1 sec or less

Wire thickness V3

1.5 mm

2.5 mm

4.0 mm

6000

600

1 2 3 4 6 8

10 20

Rated Tripping current (x)

SAMPLE

0.1

0.01

TrippingTime[s]

Connection details

Lead wire

Terminal

block

Loosen terminal screw.

RG79Y960H01.indb 21 2018/02/09 14:31:10

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User Manual - Page 21