Daitsu FMCD*ECM series Installation, Operation And Service Manual

EUversion2.1

Revised:Feb.17,2014SK2014‐SON‐002‐TechMnl‐FMCD‐

003

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ECOELEGANTSERIES

INSTALLATIONOPERATIONANDSERVICEMANUAL

FMCD~ECMSERIES

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SK2014‐SON‐002‐TechMnl‐FMCD‐003

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INVESTINGINQUALITY,RELIABILITY&PERFORMANCE.

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ISO9001QUALITYWorldLeadingDesignandTechnology





Everyproductismanufacturedtomeet

thestringentrequirementsofthe

internationallyrecognizedISO9001

standardforqualityassuranceindesign,

developmentandproduction.

EquippedwiththelatestCAD/CAMcomputeraided

designandmanufacturingtechnology,ourfactoriesin

ChinaandThailandproduceover2,000,000air

conditioningunitseachyear,allconformingtothe

highestinternationalstandardsofqualityandsafety.



CESAFETYSTANDARDSThe Highest Standards o

Manufacturing





AllproductsconformtotheCertificate

Europedirectives(MachinerySafety,

ElectromagneticCompatibilityandLow

Voltage),asrequiredthroughoutthe

EuropeanCommunity,toguarantee

correctstandardsofsafety.

Inordertoguaranteetheveryhigheststandardsand

performance,wemanageeverystageinthe

manufacturingofourproducts.Throughoutthe

productionprocesswemaintainstrictcontrol,starting

withourextensiveresourcesinresearchand

developmentthroughtothedesignandmanufacture

ofalmosteveryindividualcomponent,frommolded

plasticstotheassemblyofunitsandcontrollers.



WEEEMARKQuality Controlled from StarttoFinish





Allproductsconformtothe“WEEE”

directivetoguaranteecorrectstandards

ofenvironmentalsolutions.

Ourhighlytrainedstaffandstrictqualitycontrol

methodsenableustoproduceproductswithan

exceptionalreputationforreliabilityandefficiency,

maintainedovermanyyears.AswellasfullCE

certificationandISO9001,severalproductshave

UL/ETL/CSA(NRTL)safetyapprovalplusARI

CertificationintheUSAandCanada,inadditionto

ROHScomplianceforEurope,givingyouthe

confidenceofknowingourcompanyistherightchoice

whenselectingairconditioningequipment.



ALWAYSMAKESURETHISMANUALREMAINS WITHTHE WATER HIGH‐WALLUNIT. READTHISMANUALBEFORE

PERFORMINGANYOPERATIONONTHEWATERHIGH‐WALLUNIT.

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TableofContent

MODELCODENOMENCLATURE..........................................................................................................................................5

A.TECHNICALDATA......................................................................................................................................................6

A.1.GENERALDESCRIPTION......................................................................................................................................................6

A.2.GENERALSPECIFICATION....................................................................................................................................................7

A.2.1.FMCD–V–ECSeries3‐SpeedSpecifications........................................................................................................7

A.3.COILDATA......................................................................................................................................................................9

A.3.1.2‐PipeSystems...................................................................................................................................................9

A.4.DIMENSIONALDRAWINGS...............................................................................................................................................10

B.SERVICEANDINSTALLATION...................................................................................................................................13

B.1.INSTALLATIONOFHIGH‐WALLUNIT..................................................................................................................................13

B.1.1.SelectingaLocation........................................................................................................................................13

B.1.2.MountingPlateDimensions............................................................................................................................14

B.1.3.InstallingtheMountingPlate.........................................................................................................................15

B.1.4.DrillingtheCondensateDrainageHole...........................................................................................................15

B.1.5.InstallingtheHydronicUnit............................................................................................................................16

B.1.6.DrainagePipingWorks....................................................................................................................................16

B.2.UNITMAINTENANCESANDPREPARATIONS.........................................................................................................................17

B.2.1.OpeningandClosingOfLift‐UpGrilleCover...................................................................................................17

B.2.2.RemovingFrontCoverAssembly....................................................................................................................17

B.2.3.AirPurging......................................................................................................................................................18

B.2.4.WiringConnections.........................................................................................................................................18

B.3.PIPECONNECTIONSWITHVALVE......................................................................................................................................19

C.CONTROLSPECIFICATIONS......................................................................................................................................20

C.1.SK‐NCFMCD‐001COMPLETEFUNCTIONFCUCONTROLLER................................................................................................20

C.1.1.Abbreviations..................................................................................................................................................20

C.1.2.DefinitionofInput/Output.............................................................................................................................20

C.1.3.WiringDiagramSK‐NCFMCD‐001...................................................................................................................21

C.1.4.ConfigurationSettings....................................................................................................................................22

C.1.5.ControlLogicsfor2‐PipeSystem....................................................................................................................24

C.1.6.ControlLogicsfor4‐PipeSystem....................................................................................................................28

C.1.7.SleepMode.....................................................................................................................................................31

C.1.8.AutoFanSpeed...............................................................................................................................................32

C.1.9.Louver.............................................................................................................................................................33

C.1.10.Buzzer.............................................................................................................................................................33

C.1.11.AutoRestart....................................................................................................................................................33

C.1.12.OperationOfControlPanelOnHigh‐WallUnit..............................................................................................34

C.2.LEDLIGHTS.................................................................................................................................................................35

C.2.1.LEDIndicationandErrorDescription..............................................................................................................36

C.2.2.LEDIndicationonMaster/SlaveConnection..................................................................................................37

C.3.NETWORKINGSYSTEM...................................................................................................................................................38

C.3.1.Master–SlaveNetwork..................................................................................................................................38

C.3.2.Master–SlaveNetworkSetup.......................................................................................................................39

C.3.3.Master–SlaveCommunicationMethod........................................................................................................42

C.3.4.UnitNetworkWiringScheme.........................................................................................................................43

C.4.SK‐NCFMCD‐002LIMITEDFUNCTIONFCUCONTROLLER...................................................................................................44

C.4.1.DefinitionofInput/Output.............................................................................................................................44

C.4.2.WiringDiagramSK‐NCFMCD‐002...................................................................................................................45

C.4.3.OnboardConfiguration...................................................................................................................................46

C.4.4.ControlLogicSpecification..............................................................................................................................46

C.4.5.LEDIndication.................................................................................................................................................47

C.4.6.ErrorDescription.............................................................................................................................................47

C.5.OPENMODBUSPROTOCOL.............................................................................................................................................48

D.USERINTERFACE.....................................................................................................................................................52

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D.1.REMOTECONTROLHANDSET...........................................................................................................................................52

D.2.WIREDWALLPAD.........................................................................................................................................................53

D.2.1.WallPadDisplay.............................................................................................................................................53

D.2.2.WallPadOperationGuidelines.......................................................................................................................54

D.2.3.ECUnitRPMSetting........................................................................................................................................57

E.SENSORRESISTANCER‐TCONVERSIONTABLE..........................................................................................................58

F.MODULELAYOUT....................................................................................................................................................60

G.TROUBLESHOOTINGGUIDE.....................................................................................................................................61

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ModelCodeNomenclature



FMCD‐ 06‐ VS‐ ECM



ECMECMotorConfiguration



SCompletefunctiononboardPCBwith

integratedgroupcontrolfunctionality

W

LimitedfunctiononboardPCBwithdrain‐

pump,louverandzonecontrol

functionality



V2‐PipeSystem



04

UnitSizes.SeeGeneralSpecification

SectionAforcoolingandheating

capacities

06

12

15

18

20

24



FMCD HydronicHigh‐WallCSeries



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A. TechnicalData

A.1. GeneralDescription

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ThisHigh‐WallUnitisdesignedtomeetandexceeddemandingrequirementsforefficiency,quietoperationandappearance.

Thesleekprofileandelegantlystyledcabinetcomplementsanyinteriordesigntheme,whilethemicroprocessorassures

accurateenvironmentalcontrol.



Cabinet~thestylishcabinetisconstructedofdurableflameresistantacrylonitrile‐butadiene‐styrene(ABS)plastic.Thesilver

whitecolorandroundedcornersprovideitsmodernlook.



WaterCoil~thewatercoilhasalargeheattransfersurfaceandutilizesthelatesttechnologyinfinprofiling.Itcombinesan

advancedtechnologyapproachwiththesecurityofatraditionaldesignregardingtubethickness.Thewatercoilisalsoequipped

withanairventvalveandawaterpurgevalve.



IntegralHoses~anintegralhoseisasyntheticelastomertube,withstainlesssteelouterbraidingandbrassconnectors,

whichenablesquick,lowcostconnectionswithnobrazing.



BlowerandMotor~theHigh‐wallunitincorporatesonlyspeciallydesignedandtestedECmotors,allowingtheblowerwheelto

provideoptimumperformanceinairflow‐efficiencyandquietoperation.

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Filters~washable,easy‐to‐remove,finemeshairfiltersarestandardtoallHigh‐wallmodels.Tabslocatedonthefrontoftheunit

canbeunsnapped,allowingthefiltertobeeasilysliddownwardandremoved.Notoolsarerequired,noranydismantlingofthe

equipment.

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AirGrilleDistribution~allHigh‐wallunitsareequippedwithbothdeflectorbladesandindependentdirectionalvanes,

enablingsupplyairtobeautomaticallydistributed,andairflowanddirectiontobecustomized.



MicroprocessorControl~seeC.ControlsSpecificationsforcompletecontrolspecificationsanddetails.Themaindesign

featuresinclude:



~FCEERratingclass:A/B.

~FCCOPratingclass:B/C.

~ HighefficiencybrushlessDCmotorwithPIDalgorithmicprocessinginauto‐mode.

~ 2‐pipe,2‐pipewithboosterelectricheat,2‐pipewithprimaryelectricheat,4‐pipewith4x2deviceinstalled.

~Cool,Heat,Auto,DehumidifierandFanmodes.

~Sleep,Auto‐Fan,DailyTimer,Auto‐Restartwithmemoryfunctions.

~Userfriendlyremotecontrolhandset.

~Heatandcooltemperatureprotectionsandsafetycutout.

~2‐wayand3‐wayon/offvalvecontrol.

~Addressablecontrolanderrordiagnostics(Master‐Slave)forsub‐networksofupto32units,withIRhandsetasglobal

controlinterface.

~Wiredwallpadcontroller(optional)with7‐dayprogrammabletimer,real‐timeclock,networkcontrol(globaland

addressable)anderrordiagnostics.

~Manualcontrolpanelincabinet.

~Auxiliaryswitchforcoolingandheatingsignal.

~Occupancy(remoteon/off)contacts/economymodecontacts.

~OpenModbuscommunicationprotocol.

~LocalPChostcontrolsolution(optional).

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A.2. GeneralSpecification

A.2.1. FMCD–V–ECSeries3‐SpeedSpecifications

Productrange:FMCD‐ECMHydronicHighWallwithECMotor

FMCD‐V~‐ECMHydronicHighWall2‐pipewithECMotor



 FMCD‐[Size]‐V~‐ECM04061215

UnitConfiguration

Configuration2‐pipe

NumberOfFanBlowersSingle

PowerSupply(V/Ph/Hz)230/1/50

220/1/60

OperationControl

~S:CompletefunctiononboardPCBwithintegratedgroupcontrolfunctionality,incl.1pcreturnairsensor

and2pcstemperaturesensors.

~W:LimitedfunctiononboardPCBwithdrain‐pump,louverandzonecontrolfunctionality,incl.1pccoil

temperaturesensor.

PerformanceData

Air

TotalAirFlow

H

m3/hr

370500500645

M290370370445

L220290290370

Cooling

CoolingCapacitye

H

kW

1.242.072.493.02

M1.041.641.862.4

L0.8411.371.611.94

SensibleCoolingCapacitye

H0.9151.521.812.22

M0.7661.21.341.47

L0.6150.9921.151.4

FCEEReRating135168195187

ClassBBAA

Heating

HeatingCapacitye

H

kW

1.622.703.213.93

M1.352.122.372.61

L1.091.752.032.48

Max.ElectricHeaterCapacity1

FCCOPeRating176216248230

ClassBBBB

Sound

SoundPressureLevel(Outlet)dB(A)27/24/2337/30/2637/30/2643/34/29

SoundPowerLevel(Outlet)e38/35/3348/40/3548/40/3553/43/38

Electrical

FanMotorPowere

H

W

10131320

M8101013

L68810

FanMotorApparentPower@H2323250

FanMotorRunningCurrent@HA0.080.1420.1420.182

Hydraulic

CoolingWaterFlowRate

H

L/h

212355427525

M178281319411

L144235276332

CoolingPressureDrope

H

kPa

18.3222839.3

M13.61517.119.9

L9.51113.418.4

HeatingWaterFlowRate

@H/M/LL/hSameas"CoolingWaterFlowRate"

HeatingPressureDrope

H

kPa

14.718.122.731.8

M1111.913.515.9

L7.568.710.714.8

WaterContentL0.0450.07890.1240.124

Construction

andPackingData

Water

Connections

TypeSocket(ThreadedFemale)

In

mm[in]12.70[1/2]

Out

CondensateDrainageConnection16[0.63]

Dimensions

L

mm

876

W228

H300

NetWeightKg11121313





1."e"referstotechnicalinformationlistedontheEuroventwebsite.Euroventtestingconditions:



a.Coolingmode(2‐pipe):   b.Heatingmode(2‐pipe):



‐Returnairtemperature:27CDB/19CWB.  ‐Returnairtemperature:20C.



‐Inlet/Outletwatertemperature:7C/12C.  ‐Inletwatertemperature:50C.



   ‐Waterflow‐rate:sameas2‐pipecooling.



Page 8 of 62

SK2014‐SON‐002‐TechMnl‐FMCD‐003

Productrange:FMCD‐ECMHydronicHighWallwithECMotor



 FMCD‐[Size]‐V~‐ECM182024

UnitConfiguration

Configuration2‐pipe

NumberOfFanBlowersSingle

PowerSupply(V/Ph/Hz)230/1/50

220/1/60

OperationControl

~S:CompletefunctiononboardPCBwithintegratedgroupcontrolfunctionality,incl.1

pcreturnairsensorand2pcstemperaturesensors.

~W:LimitedfunctiononboardPCBwithdrain‐pump,louverandzonecontrol

functionality,incl.1pccoiltemperaturesensor.

PerformanceData

Air

TotalAirFlow

H

m3/hr

7889801240

M740760760

L570600600

Cooling

CoolingCapacitye

H

kW

3.744.815.38

M3.283.93.9

L2.683.353.35

SensibleCoolingCapacitye

H2.743.463.89

M2.42.82.8

L1.952.382.38

FCEEReRating183171165

ClassBBB

Heating

HeatingCapacitye

H

kW

4.876.106.85

M4.24.924.92

L3.454.194.19

Max.ElectricHeaterCapacity1.5

FCCOPeRating238216209

ClassBBB

Sound

SoundPressureLevel(Outlet)dB(A)46/40/3440/35/3045/35/30

SoundPowerLevel(Outlet)e57/52/4552/46/4156/46/41

Electrical

FanMotorPowere

H

W

304160

M202424

L131818

FanMotorApparentPower@H8380120

FanMotorRunningCurrent@HA0.2720.3480.52

Hydraulic

CoolingWaterFlowRate

H

L/h

641.91825.55923.38

M562.96669.37669.37

L459.98574.97574.97

CoolingPressureDrope

H

kPa

4552.263.3

M3736.636.6

L25.628.128.1

HeatingWaterFlowRate

@H/M/LL/hSameas"CoolingWaterFlowRate"

HeatingPressureDrope

H

kPa

36.242.351.3

M28.829.429.4

L20.422.622.6

WaterContentL0.1920.2520.252

Construction

andPackingData

Water

Connections

TypeSocket(ThreadedFemale)

In

mm[in]12.70[1/2]

Out

CondensateDrainageConnection16[0.63]

Dimensions

L

mm

8761063

W228240

H300310

NetWeightKg141616





1."e"referstotechnicalinformationlistedontheEuroventwebsite.Euroventtestingconditions:



a.Coolingmode(2‐pipe):   b.Heatingmode(2‐pipe):



‐Returnairtemperature:27CDB/19CWB.  ‐Returnairtemperature:20C.



‐Inlet/Outletwatertemperature:7C/12C.  ‐Inletwatertemperature:50C.



   ‐Waterflow‐rate:sameas2‐pipecooling.

Page 9 of 62

SK2014‐SON‐002‐TechMnl‐FMCD‐003



A.3. CoilData

A.3.1. 2‐PipeSystems



ModelFinHeight

(mm.)

FinLength

(mm.)FinsperInch No.ofRows No.ofCopper No.ofCircuits

Tube

Diameter

(mm)

FMCD‐04230680

19.5

2827

FMCD‐0623068021437

FMCD‐1223068022247

FMCD‐1523068022247

FMCD‐1835768023457

FMCD‐2037884523667

FMCD‐2437884523667



Page 10 of 62

A.4. DimensionalDrawings

DimensionaldrawingforFMCD‐04/06/12/15/18‐ECM



(Alldimensionsshowninmm)



Page 11 of 62

DimensionaldrawingforFMCD‐20/24‐ECM



(Alldimensionsshowninmm)



Page 12 of 62

SK2014‐SON‐002‐TechMnl‐FMCD‐00

A.5. ValveInformation



A.5.1. 2‐WayValveBody



A.5.2. 3‐WayValveBody



ValveDimensions(mm)

DNABCD

D15(G1/2”) 524719.563

ValveDimensions(mm)

DNABCD

D15(G1/2”) 52704086

Page 13 of 62

SK2014‐SON‐002‐TechMnl‐FMCD‐00



B. ServiceandInstallation

B.1. InstallationofHigh‐WallUnit



B.1.1. SelectingaLocation



SelectthelocationfortheHigh‐wallunitwiththefollowingconsiderationsinmind:



1. Thefrontoftheairinletandoutletshouldbeclearofanyobstructions.Theairshouldflowfreely.

2. Thewallwheretheunitistobemountedshouldbesolid/firmenoughnottoresonateandproducenoise.

3. Thelocationshouldalloweasyaccesstoinstalltheconnectingwaterpipes,andbewheredrainage

canbeeasilyachieved.

4. Ensuretheclearancearoundthefancoilunitconformstothefollowingdrawing.

5. Fromthefloortheheightoftheunitshouldbeaboveeyelevel.

6. Avoidinstallingtheunitindirectsunlight.



*Requiredclearanceformaintenanceandservicingisasshownabove.

**Alldimensionsshowninmm.



7. Thesignalreceiverontheunitmustbekeptawayfromanyhighfrequencyemissionsource.

8. Keeptheunitawayfromfluorescentlamps,whichmayaffectthecontrolsystem.

9. Toavoidelectromagneticcontrolsysteminterference,ensurecontrolwiresareinstalledseparatelyfrom

220‐240VACpowerwires.

10. Whereelectromagneticwavesarepresent,useshieldedsensorcables.

11. Installanoisefilterifthepowersupplycreatesanydisruptivenoises.



Higherthaneyelevel

Page 14 of 62

SK2014‐SON‐002‐TechMnl‐FMCD‐00



B.1.2. MountingPlateDimensions



FMCD‐04/06/12/15/18–ECM



FMCD‐20/24/30–ECM



(Alldimensionsshowninmm)

Page 15 of 62

SK2014‐SON‐002‐TechMnl‐FMCD‐00



B.1.3. InstallingtheMountingPlate

1. Selectthestructuralposition(e.g.apillarorlintel)onthewall.

2. Thentemporarilyfastenthemountingplateonthewallwithasteelnail.

3. Mountthemountingplatehorizontallyasshowninthe

abovefigureorbymeansofgradiometer.Failureto

followthismaycausewatertodripindoorsandcreate

additionalnoise.

4. Fixthemountingplatebymeansofexpansionscrewsor

tappingscrews.



B.1.4. DrillingtheCondensateDrainageHole

1. Ensurethattheholeforcondensatedrainageiscorrectlypositioned.Theheightshouldbelowerthanthe

bottomedgeoftheindoorunit.

2. Drilla65mmdiameterholewithadescendingslope.

3. Sealitoffwithputtyafterinstallation.



Page 16 of 62

SK2014‐SON‐002‐TechMnl‐FMCD‐00



B.1.5. InstallingtheHydronicUnit

1. Passthepipingthroughtheholeinthewallandhooktheindoorunitonthemountingplatebytheupper

hooks.

2. Movethebodyoftheunitfromsidetoverifyifitissecurelyfixed.

3. Whilepushingtheunittowardthewall,liftitslightlyfrombeneathtohookituponthemountingplateby

thelowerhooks.

4. Makesuretheunitfirmlyrestsonthehooksofthemountingplate.



B.1.6. DrainagePipingWorks

1. Installthedrainhosesothatitslopesdownwardslightlyforfreedrainage.Avoidinstallingitasshownin

thebelowillustrationsmarkedwithan“X”.



2. Putwaterinthedrainpanandmakesurethatthewaterdrainsoutdoors.

3. Iftheflexibledrainhoseprovidedwiththeindoorunitisnotlongenough,pleaseextenditbyjoiningitto

anextensionhose(notprovided).Besuretoinsulatetheconnectingpartoftheextensiondrainhosewith

ashieldpipeasshown.



4. Iftheattacheddrainhosepassesthroughanindoorarea,insulateitwithheatinsulationmaterial.

Page 17 of 62

SK2014‐SON‐002‐TechMnl‐FMCD‐003

Openthegrillecoverbyliftingfromthe

bottompositionindicatedbythearrows

B.2. UnitMaintenancesandPreparations

B.2.1. OpeningandClosingOfLift‐UpGrilleCover



B.2.2. RemovingFrontCoverAssembly

1. Setthehorizontallouvertothehorizontalposition.

2. Removethescrewcapsbelowthelouver,andthenremovethemountingscrews.

3. Openthelift‐upgrillecoverbygraspingthepanelatbothsidesasshownabove.

4. Removetheremainingscrewslocatedinthecenteroftheunit/ofthefrontcover.

5. Graspthelowerpartofthefrontcoverandpulltheentireassemblyoutanduptowardsyou.



Closethegrillecoverbypressingdownatthe

positionsindicatedbythearrows.

Page 18 of 62

SK2014‐SON‐002‐TechMnl‐FMCD‐003

B.2.3. AirPurging

1. Afterconnectingthewaterinletandoutletpipestothemainsupplylinesturnonthemainbreakerandoperate

theunitinCOOLINGmode.

2. Openthewaterinletvalveandfloodthecoil.

3. Checkallconnectionsforwaterleakage.Ifnoleakisfoundopenthewaterpurge/airventvalvewithanopen

endwrenchandsupporttheunitbyhand.Thenpurgetheairtrappedinsidethecoil.Whenperformingthis

activity,takecarenottotouchtheelectricalparts.

4. Closethewaterpurge/airventvalvewhennobubblesappear.

5. Openthewateroutletvalve.



B.2.4. WiringConnections



Unitcomponentsarewiredtotheterminalblockoftheindoorunit.Wiringcanbeaccessedfromtheterminal

blockinsidethecontrolbox.



Page 19 of 62

SK2014‐SON‐002‐TechMnl‐FMCD‐003

B.3. PipeConnectionswithValve



Pre‐assembly



CompleteAssembly



FlexiblecopperValvebodywith

actuator

½”gasketCoilconnector

Page 20 of 62

SK2014‐SON‐002‐TechMnl‐FMCD‐003

C. ControlSpecifications

C.1. SK‐NCFMCD‐001CompletefunctionFCUController

UsedinallHigh‐Wall[V]~Sunitconfigurations.



Completefunctionintegratedcontroller,compatiblewithIRhandsetcontroller,wiredwall‐pad,serialnetworkingfor

master‐slaveandMODBUSapplications.



C.1.1. Abbreviations

Ts=Settingtemperature

Tr=Roomairtemperature

Ti1=Chilledwatercoiltemperature

Ti2=Hotwatercoiltemperature

AUX1=Hotwaterfreecontact

AUX2=Chilledwaterfreecontact

MTV1=ChilledMotorizedvalve

MTV2=HotMotorizedvalve

C.1.2. DefinitionofInput/Output

I/OCode2‐Pipe4‐Pipe

AnalogueInput

Returnairsensor AI1Returnairtemperature(Tr)

2‐pipecoilcircuitsensorAI2Chilled/hotwatercoil

circuit(Ti1)

Chilledwatercoilcircuit

(Ti1)

Hotwatersensor AI3N/AHotwatercoilcircuit

(Ti2)

Input

LEDdisplay/IRreceiverX‐DIS1DigitalcommunicationporttoLEDdisplay/IRreceiver

board.

WiredwallpadTTL1Digitalcommunicationporttowiredwallpadboard.

Digitalinput

OccupancycontactOn/Off

Windowcontacts:

ForremoteON/OFF(whenDIPBSW1=1).

Economycontacts:

Forremoteactivationofeconomymode(whenDIPB

SW1=0).

ElectricalheatersafetyswitchEHVoltage‐free(NC).ThecontactisclosedbeforetheEHis

turnedon.

Powerinput

PhaseL1PowersupplytothePCBandalltheloadsconnectedto

thevoltageoutputs.Maxlength:5m.

NeutralN1PowersupplytothePCBandalltheloadsconnectedto

thevoltageoutputs.Maxlength:5m.

EarthPE1PowersupplytothePCBandalltheloadsconnectedto

thevoltageoutputs.Maxlength:5m.

Voltageoutput

FanCN4Fandriver

Valve1MTV1

2‐pipecoilcircuitvalve

output–chilled/hotwater

valve.

Voltageoutput(L)

4‐pipecoilcircuitvalve

output–chilledwater

valve.

Voltageoutput(L)

Valve2MTV2Reserved

4‐pipecoilcircuitvalve

output–hotwatervalve.

Voltageoutput(L)

Voltageofelectricalheater

(Live)HEATVoltageoutput(L),maximum25A

Output

SteppingmotorCN1/CN2Louversteppingmotorrelay

Auxiliarycontact2AUX2

Coolingmodesignalrelay(NO).Voltagefreecontact.

Toensurethesensitivityoftheconnection,please

makesuremaxwiringlength<5m,5A

Auxiliarycontact1AUX1

Heatingmodesignalswitch(NO).Voltagefreecontact.

Toensurethesensitivityoftheconnection,please

makesuremaxwiringlength<5m.5A

SerialBUSportCN3Master‐slavenetworkserialconnectionOR

MODBUS/localPChostnetworkserialconnection.

Daitsu FMCD*ECM series Installation, Operation And Service Manual

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