Johnson Controls VRF System Engineering Manual

Brand: Johnson Controls

Model: VRF System

Category: Split-system air conditioners

Type: Engineering Manual

ENGINEERING MANUAL

INVERTER-DRIVEN MULTI-SPLIT SYSTEM

HEAT PUMP AIR CONDITIONERS

Engineering Manual

TC-16002

Technical Catalog for Outdoor Unit

< Indoor Units >

 ●2-WayCassetteType

  (H,Y,C)IC2018B21S

  (H,Y,C)IC2024B21S

TC-16002-rev.1

IMPORTANT NOTICE AND SAFETY SUMMARY

1. Introduction

2. Important Safety Instructions

Thismanualshouldbeconsideredasapermanentpartoftheairconditioningequipmentandshould

remainwiththeairconditioningequipment.

(Transportation/InstallationWork)>(RefrigerantPipingWork)>(ElectricalWiringWork)>(Ref.ChargeWork)>(Test

Run)>(User)

ThisEngineeringManualconcentratesonheatpumpairconditioningunits.Readthismanualcarefully

beforeperforminginstallationsoroperations.

Signal Words

Indicatesahazardoussituationthat,ifnotavoided,couldresultindeathor

seriousinjury.

Indicatesahazardoussituationthat,ifnotavoided,couldresultinminoror

moderateinjury.

Indicatesinformationconsideredimportant,butnothazard-related

(forexample,messagesrelatingtopropertydamage).

General Precautions

Toreducetheriskofseriousinjuryordeath,readtheseinstructions

thoroughlyandfollowallwarningsorcautionsincludedinallmanualsthat

accompaniedtheproductandareattachedtotheunit.Referbacktothese

instructionsasneeded.

● ThissystemshouldbeinstalledbypersonnelcertiedbyJohnsonControls,Inc.Personnelmustbe

qualiedaccordingtolocal,stateandnationalbuildingandsafetycodesandregulations.Incorrect

installationcouldcauseleaks,electricshock,reorexplosion.InareaswhereSeismic‘’Performance

requirementsarespecied,theappropriatemeasuresshouldbetakenduringinstallationtoguard

againstpossibledamageorinjurythatmightoccurinanearthquakeiftheunitisnotinstalled

correctly,injuriesmayoccurduetoafallingunit.

● UseappropriatePersonalProtectiveEquipment(PPE),suchasglovesandprotectivegogglesand,

whereappropriate,haveagasmasknearby.Alsouseelectricalprotectionequipmentandtools

suitedforelectricaloperationpurposes.Keepaquenchingclothandareextinguishernearbyduring

brazing.Usecareinhandling,rigging,andsettingofbulkyequipment.

● Whentransporting,becarefulwhenpickingup,movingandmountingtheseunits.Althoughthe

unitmaybepackedusingplasticstraps,donotusethemfortransportingtheunitfromonelocation

toanother.Donotstandonorputanymaterialontheunit.Getapartnertohelp,andbendwith

yourkneeswhenliftingtoreducestrainonyourback.Sharpedgesorthinaluminumnsontheair

conditionercancutngers,sowearprotectivegloves.

● Donottouchoradjustanysafetydevicesinsidetheindoororoutdoorunits.Allsafetyfeatures,

disengagement,andinterlocksmustbeinplaceandfunctioningcorrectlybeforetheequipmentis

putintooperation.Ifthesedevicesareimproperlyadjustedortamperedwithinanyway,aserious

accidentcanoccur.Neverbypassorjump-outanysafetydeviceorswitch.

● JohnsonControlswillnotassumeanyliabilityforinjuriesordamagecausedbynotfollowingsteps

outlinedordescribedinthismanual.UnauthorizedmodicationstoJohnsonControlsproductsare

prohibitedasthey…

◦ Maycreatehazardswhichcouldresultindeath,seriousinjuryorequipmentdamage.

◦ Willvoidproductwarranties.

◦ Mayinvalidateproductregulatorycertications.

◦ MayviolateOSHAstandards.

TC-16002-rev.1

Takethefollowingprecautionstoreducetheriskofpropertydamage.

● Becarefulthatmoisture,dust,orvariantrefrigerantcompoundsnotentertherefrigerantcycleduring

installationwork.Foreignmattercoulddamageinternalcomponentsorcauseblockages.

● Ifairltersarerequiredonthisunit,donotoperatetheunitwithouttheairltersetinplace.Iftheair

lterisnotinstalled,dustmayaccumulateandbreakdownmayresult.

● Donotinstallthisunitinanyplacewheresilicongasescancoalesce.Ifthesilicongasmolecules

attachthemselvestothesurfaceoftheheatexchanger,thennedsurfaceswillrepelwater.Asa

result,anyamountofdrainagemoisturecondensatecanoverowfromthedraincondensatepanand

couldruninsideoftheelectricalbox,possiblycausingelectricalfailures.

● Wheninstallingtheunitinahospitalorotherfacilitywhereelectromagneticwavesaregenerated

fromnearbymedicaland/orelectronicdevices,bepreparedfornoiseandelectronicinterference

ElectromagneticInterference(EMI).Donotinstallwherethewavescandirectlyradiateintothe

electricalbox,controllercable,orcontroller.Inverters,appliances,high-frequencymedicalequipment,

andradiocommunicationsequipmentmaycausetheunittomalfunction.Theoperationoftheunit

mayalsoadverselyaffectthesesamedevices.Installtheunitatleast10ft.(approximately3m)away

fromsuchdevices.

● Whenawirelesscontrollerisused,locateatadistanceofatleast3.3ft.(approximately1m)between

theindoorunitandelectriclighting.Ifnot,thereceiverpartoftheunitmayhavedifcultyreceiving

operationcommands.

● Donotinstalltheunitinanylocationwhereanimalsandplantscancomeintodirectcontactwiththe

outletairstream.Exposurecouldadverselyaffecttheanimalsandplants.

● Donotinstalltheunitwithanydownwardslopetothesideofthedrainboss.Ifyoudo,youmayhave

drainwaterowingbackwhichmaycauseleaks.

● Besurethedrainhosedischargeswaterproperly.Ifconnectedincorrectly,itmaycauseleaks.

● Donotinstalltheunitinanyplacewhereoilcanseepontotheunits,suchastableorseatingareasin

restaurants,andsoforth.Fortheselocationsorsocialvenues,usespecializedunitswithoil-resistant

featuresbuiltintothem.Inaddition,useaspecializedceilingfandesignedforrestaurantuse.These

specializedoil-resistantunitscanbeorderedforsuchapplications.However,inplaceswherelarge

quantitiesofoilcansplashontotheunit,suchasafactory,eventhespecializedunitscannotbeused.

Theseproductsshouldnotbeinstalledinsuchlocations.

● Ifthewiredcontrollerisinstalledinalocationwhereelectromagneticradiationisgenerated,make

surethatthewiredcontrollerisshieldedandcablesaresleevedinsideconduittubing.

● Ifthereisasourceofelectricalinterferencenearthepowersource,installnoisesuppression

equipment(lter).

● Duringthetestrun,checktheunit’soperationtemperature.Iftheunitisusedinanenvironment

wherethetemperatureexceedstheoperationboundary,itmaycauseseveredamage.Checkthe

operationaltemperatureboundaryinthemanual.Ifthereisnospeciedtemperature,usetheunit

withintheoperationaltemperatureboundaryof35to104°F(0to40°C).

● ReadinstallationandappropriateusermanualsforconnectionwithPCorperipheraldevices.Ifa

warningwindowappearsonthePC,theproductstops,doesnotworkproperlyorworksintermittently,

immediatelystopusingtheequipment.

TC-16002-rev.1

iii

Installation Precautions

Toreducetheriskofseriousinjuryordeath,thefollowinginstallation

precautionsmustbefollowed.

● Wheninstallingtheunitinto…

◦ Awall:Makesurethewallisstrongenoughtoholdtheunit’sweight.Itmaybenecessaryto

constructastrongwoodormetalframetoprovideaddedsupport.

◦ Aroom:Properlyinsulateanyrefrigeranttubingruninsidearoomtoprevent“sweating”thatcan

causedrippingandwaterdamagetowallandoors.

◦ Damporunevenareas:Usearaisedconcretepadorconcreteblockstoprovideasolid,level

foundationfortheunittopreventwaterdamageandabnormalvibration.

◦ Anareawithhighwinds:Securelyanchortheoutdoorunitdownwithboltsandametalframe.

Provideasuitableairbafe.

◦ Asnowyarea(onlyforHeatPumpModel):Installtheoutdoorunitonaraisedplatformthatis

higherthandriftingsnow.Providesnowvents.

● Iftheremotesensorsarenotusedwiththiscontroller,thendonotinstallthiscontroller…

◦ inaroomwherethereisnothermostat.

◦ wheretheunitisexposedtodirectsunshineordirectlight.

◦ wheretheunitwillbeincloseproximitytoaheatsource.

◦ wherehot/coldairfromtheoutdoors,oradraftfromelsewhere(suchasairvents,diffusersor

grilles)canaffectaircirculation.

◦ inareaswithpooraircirculationandventilation.

● Donotinstalltheunitinthefollowingplaces.Doingsocanresultinanexplosion,re,deformation,

corrosion,orproductfailure.

◦ Explosiveorammableatmosphere.

◦ Wherere,oil,steam,orpowdercandirectlyentertheunit,suchasincloseproximityordirectly

aboveakitchenstove.

◦ Whereoil(includingmachineryoil)maybepresent.

◦ Wherecorrosivegasessuchaschlorine,bromine,orsuldecanaccumulate,suchasnearahot

tuborhotspring.

◦ Wheredense,salt-ladenairowisheavy,suchasincoastalregions.

◦ Wheretheairqualityisofhighacidity.

◦ Whereharmfulgasescanbegeneratedfromdecomposition.

● Donotpositionthedrainpipefortheindoorunitnearanysanitarysewerswherecorrosivegases

maybepresent.Ifyoudo,toxicgasescanseepintobreathableairspacesandcancauserespiratory

injuries.Ifthedrainpipeisinstalledincorrectly,waterleakageanddamagetotheceiling,oor,

furniture,orotherpossessionsmayresult.Ifcondensatepipingbecomesclogged,moisturecanback

upandcandripfromtheindoorunit.Donotinstalltheindoorunitwheresuchdrippingcancause

moisturedamageorunevenlocations:Usearaisedconcretepadorconcreteblockstoprovidea

solid,levelfoundationfortheunittopreventwaterdamageandabnormalvibration.

● Beforeperforminganybrazingwork,besurethattherearenoammablematerialsoropenames

nearby.

● Performatestruntoensurenormaloperation.Safetyguards,shields,barriers,covers,andprotective

devicesmustbeinplacewhilethecompressor/unitisoperating.Duringthetestrun,keepngersand

clothingawayfromanymovingparts.

● Cleanupthesitewhennished,rememberingtocheckthatnometalscrapsorbitsofwiringhave

beenleftinsidetheunitbeinginstalled.

● Duringtransportation,donotallowthebackrestoftheforkliftmakecontactwiththeunit,otherwise,

itmaycausedamagetotheheatexchangerandalsomaycauseinjurywhenstoppedorstarted

suddenly.

● Removegasinsidetheclosingpipewhenthebrazingworkisperformed.Ifthebrazingllermetalis

meltedwithremaininggasinside,thepipeswillbeblownoffanditmaycauseinjury.

● Besuretousenitrogengasforanairtighttest.Ifothergasessuchasoxygengas,acetylenegasor

uorocarbongasareaccidentallyused,itmaycauseexplosionorgasintoxication.

Afterinstallationworkforthesystemhasbeencompleted,explainthe“SafetyPrecautions,”theproperuse

andmaintenanceoftheunittothecustomeraccordingtotheinformationinallmanualsthatcamewiththe

system.AllmanualsandwarrantyinformationmustbegiventotheuserorleftneartheIndoorUnit.

TC-16002-rev.1

Refrigerant Precautions

Toreducetheriskofseriousinjuryordeath,thefollowingrefrigerant

precautionsmustbefollowed.

● Asoriginallymanufactured,thisunitcontainsrefrigerantinstalledbyJohnsonControls.Johnson

Controlsusesonlyrefrigerantsthathavebeenapprovedforuseintheunit’sintendedhomecountry

ormarket.JohnsonControlsdistributorssimilarlyareonlyauthorizedtoproviderefrigerantsthat

havebeenapprovedforuseinthecountriesormarketstheyserve.Therefrigerantusedinthisunit

isidentiedontheunit’sfaceplateand/orintheassociatedmanuals.Anyadditionsofrefrigerantinto

thisunitmustcomplywiththecountry’srequirementswithregardtorefrigerantuseandshouldbe

obtainedfromJohnsonControlsdistributors.Useofanynon-approvedrefrigerantsubstituteswillvoid

thewarrantyandwillincreasethepotentialriskofinjuryordeath.

● Ifinstalledinasmallroom,takemeasurestopreventtherefrigerantfromexceedingthemaximum

allowableconcentrationintheeventthatrefrigerantgasesshouldescape.Refrigerantgasescan

causeasphyxiation(0.026lbs/ft

(0.42kg/m

)basedonISO5149forR410A).Consultwithyour

distributorforcountermeasures(ventilationsystemandsoon).Ifrefrigerantgashasleakedduringthe

installationwork,ventilatetheroomimmediately.

● Checkthedesignpressureforthisproductis601psi(4.15MPa).Thepressureoftherefrigerant

R410Ais1.4timeshigherthanthatoftherefrigerantR22.Therefore,therefrigerantpipingfor

R410AshallbethickerthanthatforR22.Makesuretousethespeciedrefrigerantpiping.Ifnot,the

refrigerantpipingmayraptureduetoanexcessiverefrigerantpressure.Besides,payattentionto

thepipingthicknesswhenusingcopperrefrigerantpiping.Thethicknessofcopperrefrigerantpiping

differsdependingonitsmaterial.

● TherefrigerantR410Aisadopted.Therefrigerantoiltendstobeaffectedbyforeignmatterssuch

asmoisture,oxidelm,(orfat).Performtheinstallationworkwithcaretopreventmoisture,dust,or

differentrefrigerantfromenteringtherefrigerantcycle.Foreignmattercanbeintroducedintothecycle

fromsuchpartsasexpansionvalveandtheoperationmaybeunavailable.

● Toavoidthepossibilityofdifferentrefrigerantorrefrigerantoilbeingintroducedintothecycle,the

sizesofthechargingconnectionshavebeenchangedfromR407CtypeandR22type.Itisnecessary

topreparetheappropriatetoolsbeforeperforminginstallationwork.

● UserefrigerantpipesandjointswhichareapprovedforusewithR410A.

● Acompressor/unitcomprisesapressurizedsystem.Neverloosenthreadedjointswhilethesystemis

underpressureandneveropenpressurizedsystemparts.

● Beforeinstallationiscomplete,makesurethattherefrigerantleaktesthasbeenperformed.If

refrigerantgasesescapeintotheair,turnOFFthemainswitch,extinguishanyopenamesand

contactyourservicecontractor.Refrigerant(Fluorocarbon)forthisunitisodorless.Iftherefrigerant

shouldleakandcomeintocontactwithopenames,toxicgascouldbegenerated.Also,becausethe

uorocarbonsareheavierthanair,theysettletotheoor,whichcouldcauseasphyxiation.

● Wheninstallingtheunit,andconnectingrefrigerantpiping,keepallpipingrunsasshortas

possible,andmakesuretosecurelyconnecttherefrigerantpipingbeforethecompressorstarts

operating.Iftherefrigerantpipingisnotconnectedandthecompressoractivateswiththestop

valveopened,therefrigerantcyclewillbecomesubjectedtoextremelyhighpressure,whichcan

causeanexplosionorre.

● Tightenthearenutwithatorquewrenchinthespeciedmanner.Donotapplyexcessiveforcetothe

arenutwhentightening.Ifyoudo,thearenutcancrackandrefrigerantleakagemayoccur.

● Whenmaintaining,relocating,anddisposingoftheunit,dismantletherefrigerantpipingafterthe

compressorstops.

● Whenpipesareremovedoutfromunderthepipingcover,aftertheinsulationworkiscompleted,

coverthegapbetweenthepipingcoverandpipesbyapacking(eld-supplied).Ifthegapisnot

covered,theunitmaybedamagedifsnow,rainwaterorsmallanimalsentertheunit.

● Donotapplyanexcessiveforcetothespindlevalveattheendofopening.Otherwise,thespindle

valveiesoutduetorefrigerantpressure.Atthetestrun,fullyopenthegasandliquidvalves,

otherwise,thesedeviceswillbedamaged.(Itisclosedbeforeshipment.)

● Ifthearrangementforoutdoorunitsisincorrect,itmaycauseowbackoftherefrigerantandresultin

failureoftheoutdoorunit.

● Therefrigerantsystemmaybedamagediftheslopeofthepipingconnectionkitexceeds+15

TC-16002-rev.1

v

Electrical Precautions

Takethefollowingprecautionstoreducetheriskofelectricshock,reor

explosionresultinginseriousinjuryordeath.

● Highlydangerouselectricalvoltagesareusedinthissystem.Carefullyrefertothewiringdiagram

andtheseinstructionswhenwiring.Improperconnectionsandinadequategroundingcancause

seriousinjuryordeath.

● Performallelectricalworkinstrictaccordancewiththisinstallationandmaintenancemanualandall

therelevantregulatorystandards.

● Beforeservicing,openandtagalldisconnectswitches.Neverassumeelectricalpoweris

disconnected.Checkwithmeterandequipment.

● Onlyuseelectricalprotectionequipmentandtoolssuitedforthisinstallation.

● Insulateawiredcontrolleragainstmoistureandtemperatureextremes.

● Usespeciedcablesbetweenunits.

● Thenewairconditionermaynotfunctionnormallyinthefollowinginstances:

◦ Ifelectricalpowerforthenewairconditionerissuppliedfromthesametransformerasthedevice*

referredtobelow.

◦ Ifthepowersourcecablesforthisdevice*andthenewairconditionerunitarelocatedinclose

proximitytoeachother.

Device*:(Example):Alift,containercrane,rectierforelectricrailway,inverterpowerdevice,

arcfurnace,electricfurnace,large-sizedinductionmotorandlarge-sizedswitch.

Regardingthecasesmentionedabove,surgevoltagemaybeinductedintothepowersupply

cablesforthepackagedairconditionerduetoarapidchangeinpowerconsumptionofthedevice

andanactivationofaswitch.

Checkeldregulationsandstandardsbeforeperformingelectricalworkinordertoprotectthe

powersupplyforthenewairconditionerunit.

● CommunicationcablingshallbeaminimumofAWG18(0.82mm

),2-Conductor,StrandedCopper.

ShieldedcablemustbeconsideredforapplicationsandroutinginareasofhighEMIandother

sourcesofpotentiallyexcessiveelectricalnoisetoreducethepotentialforcommunicationerrors.

Whenshieldedcablingisapplied,properbondingandterminationofthecableshieldisrequired

asperJohnsonControlsguidelines.Plenumandriserratingsforcommunicationcablesmustbe

consideredperapplicationandlocalcoderequirements.

● Thepolarityoftheinputterminalsisimportant,sobesuretomatchthepolaritywhenusingcontacts

thathavepolarity.

● Useanexclusivepowersupplyfortheairconditionerattheunit’sratedvoltage.

● Highlydangerouselectricalvoltagesmaybeusedinthissystem.Carefullyrefertothewiringdiagram

andtheseinstructionswhenwiring.Improperconnectionsandinadequategroundingcancause

seriousinjuryordeath.

● Beforeinstallingthecontrollerorremotedevices,ensurethattheindoorandoutdoorunitoperation

hasbeenstopped.Further,besuretowaitatleastveminutesbeforeturningoffthemainpower

switchtotheindoororoutdoorunits.Otherwise,waterleakageorelectricalbreakdownmayresult.

● DonotopentheservicecoveroraccesspaneltotheindoororoutdoorunitswithoutturningOFFthe

mainpowersupply.Beforeconnectingorservicingthecontrollerorcablestoindoororoutdoorunits,

openandtagalldisconnectswitches.Neverassumeelectricalpowerisdisconnected.Checkwitha

meterandequipment.

● ThisequipmentcanbeinstalledwithaGroundFaultCircuitBreaker(GFCI),whichisarecognized

measureforaddedprotectiontoaproperlygroundedunit.Installappropriatesizedbreakers/fuses

/overcurrentprotectionswitches,andwiringinaccordancewithlocal,stateandNECcodesand

requirements.Theequipmentinstallerisresponsibleforunderstandingandabidingbyapplicable

codesandrequirements.

TC-16002-rev.1

- CONTENTS -

1. GeneralInformation(Features).................................................................................................................. 1-1

2. 2-WayCassetteType................................................................................................................................. 2-1

2.1 UnitNomenclature............................................................................................................................. 2-1

2.2 Line-up.............................................................................................................................................. 2-1

2.3 GeneralData..................................................................................................................................... 2-2

2.4 DimensionalData.............................................................................................................................. 2-3

2.5 Structure............................................................................................................................................ 2-4

2.6 ComponentData............................................................................................................................... 2-5

2.7 OperationSpace............................................................................................................................... 2-6

2.8 SensibleHeatFactor(SHF).............................................................................................................. 2-6

2.9 ElectricalData................................................................................................................................... 2-7

2.10 SoundData....................................................................................................................................... 2-8

2.11 ControlSystem.................................................................................................................................. 2-9

2.11.1 RefrigerantSystem.................................................................................................................. 2-9

2.11.2 StandardOperationSequence................................................................................................ 2-10

2.11.3 SafetyandControlDeviceSetting........................................................................................... 2-14

2.11.4 WiringDiagram........................................................................................................................ 2-15

3. OptionalParts............................................................................................................................................ 3-1

3.1 LineUp.............................................................................................................................................. 3-1

3.2 MotionSensorKit:SOR-NED........................................................................................................... 3-2

3.3 AntibacterialLongLifeAirFilter:F-90MD-K1.................................................................................... 3-6

3.4 FilterBox:B-90HD............................................................................................................................ 3-7

3.5 DuctAdapter:PD-150D..................................................................................................................... 3-8

3.6 Infrared(IR)ReceiverKit:C2IRK01.................................................................................................. 3-9

3.7 3PConnectorCable:PCC-1A........................................................................................................... 3-16

3.8 RemoteSensor:THM-R2A................................................................................................................ 3-16

3.9 Relayand3PinConnectorKit:PSC-5RA......................................................................................... 3-17

4. SelectionData............................................................................................................................................ 4-1

4.1 SelectionGuide................................................................................................................................. 4-1

4.2 CapacityTable................................................................................................................................... 4-1

4.2.1 CoolingCapacity...................................................................................................................... 4-1

4.2.2 HeatingCapacity..................................................................................................................... 4-2

IMPORTANTNOTICEANDSAFETYSUMMARY......................................................................................... i

1. Introduction................................................................................................................................................ i

2. ImportantSafetyInstructions..................................................................................................................... i

FEATURES

TC-16002-rev.1

1-1

1. General Information (Features)

VRF Air Conditioners

Johnson Controls proudly introduces new Variable Refrigerant Flow (VRF) air conditioners, a highly-efcient

and reliable air-conditioning system. Recently, increased numbers of buildings are requiring "Intelligent"

facilities that include communication networks, ofce automation, and a comfortable environment. In

particular, a comfortable environment is becoming more of a year-around requirement in ofce buildings.

The VRF multi-split system air conditioner meets these requirements. The proven combination of the scroll

compressor and inverter provides the best air conditioning for small and medium ofce buildings.

■ VRF System

Johnson Controls has developed the VRF system with its customers in mind.

This system, which is unique in the world, allows the interconnection of indoor units for all our VRF air

conditioners.

This system provides the consumer with greater exibility for installation, which means that the air-

conditioning systems will integrate better within complex facility structures.

● Wide Range Line-up

Indoor Unit Type

Capacity (MBH)

6 8 12 15 18 24 30 36

2-Way Cassette (H,Y,C)IC2_B21S

: Available

Table 1.1 Indoor Unit Type List

■ 2-Way Cassette Type Models

(H,Y,C)IC2018B21S and (H,Y,C)IC2024B21S

FEATURES

1-2

TC-16002-rev.1

Improved Heat Exchanger

Optimized for excellent efficiency.

Energy-Efficient Fan Motor

Turbo Fan

Improved Airflow Path with Smooth

Air Inlet

NEW

● New Design and High Performance Decorative Panel

The decorative panel has a new, simple, but stylish design applicable to the air inlet at grille. It can be

used as a shutter at the time of OFF operation.

Two louvers have individual adjustment capability with a newly equipped individual louver setting function.

Air Inlet Flat Grille

Horizontal

Air Outlet Angle

Downward

Air Outlet Angle

Swing

Simple and Stylish Design Fully Closed

2-way Individual Louver

● Improvement of Energy-Saving

(1) Adopting High Efcient New Turbo Fan and DC Fan Motor

(2) Improvement of Heat Exchanger and Reduction of Airow Loss

(3) Improvement of Energy-Saving Operation by Adopting Motion Sensor

* Adopting Motion Sensor Function

- The motion sensor function can adjust the setting temperature according to human activity and it

controls the airow volume and the airow direction.

- The motion sensor function allows optimized energy-efcient control.

FEATURES

TC-16002-rev.1

1-3

● Automatic COOL/HEAT Operation

By improving differential temperature for automatic COOL/HEAT operation, it is possible to perform rened

and sensitive operation and a more comfortable air conditioned environment is realized.

SET TEMP.

Room Air TEMP.

(Indoor Unit Air Intake Temp.)

Thermo-ON: The outdoor unit and some indoor units are running.

Thermo-OFF: The outdoor unit and some indoor units stay on, but don’t run.

Heating Mode

Cooling Mode

Thermo-ON

Thermo-OFF

SET TEMP. +3

F (2

SET TEMP. -3

F (-2

Control Flow of AUTO Mode

● Easy Maintenance (Adopting New Antibacterial Agent of Drain Pan)

The silver ions antibacterial agent is newly adopted in the drain pan, and

it inhibits generation of mold or bacterium which is the cause of slime.

The antibacterial agent (cased) is xed in the drain pan.

(Exchangeable, term of validity is 10,000 hours of the cooling operation

(Approx. ve years).)

● Easy Installation

(1) Easier Height Adjustment

The unit height can be adjusted from four corner

pockets, with the decorative panel attached to the unit.

Height adjustment from the corner pockets is suitable

for ne adjustment.

To keep the unit level, avoid signicant height

adjustment.

Unit Body

Decorative Panel

Corner Pocket

The indoor unit height from

the false ceiling surface can

be adjusted from the corner

pocket with a wrench.

Wrench

(2) Improvement of Drain Pump

High-lift DC drain pump makes it possible to raise the drain pipe straight up, up to 33-7/16 inch

(850mm) from the false ceiling surface.

inch (mm)

Max. Lift Height (H) 33-7/16 (850)

Max. Length (a+b+c) 43-5/16 (1100)

Ceiling

Hose Band (Accessory)

(Max. 11-13/16 (300))

Max. H

Drain Hose

(Accessory)

39-3/8 to 59-1/16

(1000 to 1500)

Support Part

1/25 to 1/100

Down-Slope

Shorter

if possible.

inch (mm)

2-WAY CASSETTE

TC-16002-rev.1

2-1

2. 2-Way Cassette Type

2.1 Unit Nomenclature

Model Descriptions

Example

H I C2 018 B 2 1 S

Nomenclature Description

H = Hitachi Brand

Y = York Brand

C = Coleman Brand

Indoor Unit I

Indoor Unit Type

C2 = 2-Way Cassette Type

Capacity (MBH) 018

Refrigerant Type

B = R410A

Power Supply

2 = 208/230Volts - 1Phase - 60Hz

1 = 1st Generation 1

S = Standard Type S

2.2 Line-up

Type

Capacity

Model

RT MBH

Indoor Unit 2-Way Cassette

1.5 18 (H,Y,C)IC2018B21S

2.0 24 (H,Y,C)IC2024B21S

2-WAY CASSETTE

2-2

TC-16002-rev.1

2.3 General Data

Indoor Unit Type 2-Way Cassette Type

Model (H,Y,C)IC2018B21S (H,Y,C)IC2024B21S

Indoor Unit Power Supply AC 1 Phase, 208/230V, 60Hz

Nominal Cooling Capacity *1 Btu/h 18,000 24,000

(kW) (5.3) (7.0)

Nominal Heating Capacity *1 Btu/h 20,000 27,000

(kW) (5.9) (7.9)

Sound Pressure Level *2

(Overall A Scale) dB 42-39-36-33 46-43-39-34

(Hi2-Hi-Me-Lo)

Outer Dimensions

Height in. (mm) 11-3/4 (298) 11-3/4 (298)

Width in. (mm) 33-7/8 (860) 33-7/8 (860)

Depth in. (mm) 24-13/16 (630) 24-13/16 (630)

Net Weight lbs. (kg) 55.1 (25) 55.1 (25)

Refrigerant R410A (Nitrogen-Charged for Corrosion-Resistance)

Indoor Fan

Airflow Rate cfm 653-582-512-441 777-688-582-459

(Hi2/Hi/Me/Lo)

(

/min.

)

(18.5-16.5-14.5-12.5) (22-19.5-16.5-13)

Motor Nominal Output W 57 57

Connections Flare-Nut Connection (with Flare Nuts)

Refrigerant Piping

Liquid Line in. (mm) 3/8 (9.52) 3/8 (9.52)

Gas Line in. (mm) 5/8 (15.88) 5/8 (15.88)

Condensate Drain VP25 VP25

OD in. (mm) 1-1/4 (32) 1-1/4 (32)

ID in. (mm) 1 (25) 1 (25)

Adaptable Panel Model P-AP90DNA (without Motion Sensor)

Color Neutral White

Outer Dimensions

Height in. (mm) 1-3/16 (30)

Width in. (mm) 43-5/16 (1,100)

Depth in. (mm) 27-15/16 (710)

Net Weight lbs. (kg) 16.5 (7.5)

NOTES:

*1: Nominal capacity is based on combinations within the VRF system and the following conditions:

Cooling Operation Conditions

Indoor Air Inlet Temperature: 80°F DB (26.7°C DB)

67°F WB (19.4°C WB)

Outdoor Air Inlet Temperature: 95°F DB (35.0°C DB)

Heating Operation Conditions

Indoor Air Inlet Temperature: 70°F DB (21.1°C DB)

Outdoor Air Inlet Temperature: 47°F DB (8.3°C DB)

43°F WB (6.1°C WB)

Piping Length: 24 ft. 7-3/16 in. (7.5m)

Piping Lift: 0 ft. (0m)

*2: Sound pressure level is based on the following conditions.

4.9 ft. (1.5m) beneath the unit.

The above data was measured in an anechoic chamber so that reected sound should be taken into consideration in the eld.

2-WAY CASSETTE

TC-16002-rev.1

2-3

2.4 Dimensional Data

Models: (H,Y,C)IC2018B21S and (H,Y,C)IC2024B21S with Decorative Panel P-AP90DNA

Unit: inch (mm)

Min. 94-1/2 (2400)

2-WAY CASSETTE

2-4

TC-16002-rev.1

2.5 Structure

Unit: inch (mm)

No. Part Name Remarks

1 Fan

2 Fan Motor DC

3 Heat Exchanger

4 Distributor

5 Strainer

6 Electronic Expansion Valve

7 Electrical Control Box

8 Refrigerant Gas Pipe Connection with

5/8 (15.88) Flare Nut

9 Refrigerant Liquid Pipe Connection with

3/8 (9.52) Flare Nut

10 Condensate Pipe Connection VP25 (OD

1-1/4 (32))

11 Drain-up Mechanism

12 Float Switch

13 Condensate Pan

14 Rubber Plug for Drain

15 Decorative Panel (P-AP90DNA) Optional

16 Air Inlet Grille

17 Air Filter

18 Air Outlet

19 Air Inlet

20 Cover for Corner Pocket (Use with P-AP90DNA)

2-WAY CASSETTE

TC-16002-rev.1

2-5

2.6 Component Data

Indoor Heat Exchanger and Fan

Model (H,Y,C)IC2018B21S (H,Y,C)IC2024B21S

Heat Exchanger Type Multi-Pass Cross Finned Tube

Tube Material Copper Tube

Outer Diameter

in. (mm)

1/4 (7) 1/4 (7)

Rows 2 2

Number of Tube/Coil 24 24

Fin Material Aluminum

Pitch in. (mm) 1/16 (1.6) 1/16 (1.6)

Maximum Operating Pressure psi (MPa) 601 (4.15) 601 (4.15)

Total Face Area

(

)

1.2 (0.36) 1.2 (0.36)

Number of Coil/Unit 1 1

Indoor Fan Multi-Blade Centrifugal Fan

Number/Unit 1 1

Outer Diameter

in. (mm)

14-3/16 (360) 14-3/16 (360)

Nominal Airflow cfm 653-582-512-441 777-688-582-459

(Hi2-Hi-Me-Lo)

(

/min.

)

(18.5-16.5-14.5-12.5) (22-19.5-16.5-13)

Indoor Fan Motor Drip-Proof Type Enclosure

Starting Method DC Motor

Nominal Output W 57 57

Quantity 1 1

Insulation Class E E

2-WAY CASSETTE

2-6

TC-16002-rev.1

2.7 Operation Space

2.8 Sensible Heat Factor (SHF)

Model SHF *

(H,Y,C)IC2018B21S 0.771

(H,Y,C)IC2024B21S 0.772

NOTE:

* SHF is based on combinations within the VRF system and the following conditions:

Cooling Operation Conditions

Indoor Air Inlet Temperature: 80

F DB (26.7

C DB)

F WB (19.4

C WB)

Outdoor Air Inlet Temperature: 95

F DB (35.0

C DB)

Piping Length: 24 ft. 7-3/16 in. (7.5m)

Piping Lift: 0 ft. (0m)

Unit: inch (mm)

Piping

Connection

Side

Min.

19-11/16

(500)

Min.

3-15/16

(100)

Single Unit Installation

Min.

19-11/16

(500)

Min.

19-11/16

(500)

Service

Access

Panel

Service

Access

Panel

Service

Access

Panel

Min.

118-1/8

(3000)

Multiple Unit Installation

Min.

3-15/16

(100)

Min.

3-15/16

(100)

Min.

19-11/16

(500)

Min.

19-11/16

(500)

Min.

19-11/16

(500)

Min.

19-11/16

(500)

Piping

Connection

Side

Min. 19-11/16 (500)

Min. 3-15/16 (100)

Min. 59-1/16 (1500)

Min. 39-3/8 (1000)

(Piping Connection Side)

Min.

94-1/2

(2400)

Distance from Wall Side

Minimum Service Space

Models: (H,Y,C)IC2018B21S and (H,Y,C)IC2024B21S with Decorative Panel P-AP90DNA

2-WAY CASSETTE

TC-16002-rev.1

2-7

2.9 Electrical Data

Model

Unit Main Power Applicable Voltage Power Supply

Indoor

Fan Motor

Unit

VOL PH HZ Maximum Minimum MCA MFA OPT FLA

(H,Y,C)IC2018B21S

208/230 1 60 253 188

0.8 15 0.057 0.6

(H,Y,C)IC2024B21S 1.2 15 0.057 0.9

VOL: Rated Unit Power Supply Voltage (V)

PH: Phase

HZ: Frequency (Hz)

MCA: Minimum Circuit Ampacity (A)

MFA: Maximum Fuse Ampacity (A)

OPT: Rated Motor Output (kW)

FLA: Full Load Ampacity (A)

NOTE:

Power supply voltage should be satised with the following.

Supply Voltage: Rated Voltage within ±10%

Starting Voltage: Rated Voltage within -15%

Operating Voltage: Rated Voltage within ±10%

2-WAY CASSETTE

2-8

TC-16002-rev.1

2.10 Sound Data

NOTE:

Operation sound is equivalent to an anechoic chamber (free space).

Noise level will be increased by the surrounding noise and echoes.

Model: (H,Y,C) IC2018B21S

Model: (H,Y,C) IC2024B21S

Page is loading ...

Johnson Controls VRF System Engineering Manual

Brand: Johnson Controls

Model: VRF System

Category: Split-system air conditioners

Type: Engineering Manual

Download PDF

report

Johnson Controls VRF System Engineering Manual

Johnson Controls VRF System Engineering Manual

Related papers

Other documents