Application guide @DNOVA - THX · Design vs. Technology? The THX units introduce a new plant model...

Providing indoor climate comfort

@DNOVA - THX

Application guide

@DNOVA-THX-AGU-0907-E

Application Guide @DNOVA-THX-AGU-0907-E - Page �

Due to LENNOX on going commitment to quality, specifications subject to change without notice and without incurring liability

Our products comply with the European standards.

The manufacturing @DNOVA units answers to ISO 9001 control quality system. A copy of the certificate can be get on request.

APPLICATION GUIDE

TABLE OF CONTENTS

Ref : @DNOVA-THX-AGU-0907-E

Lennox have been providing environmental solutions since 1895, our range of @DNOVA continues to mee the standards that have made LENNOX a household name. Flexible design solutions to meet YOUR needs anduncompromising attention to detail. Engineered to last, simple to maintain and Quality that comes as standard.Information on local contacts at www.lennoxeurope.com.

All the technical and technological information contained in this manual, including any drawing and technical descrip-tions provided by us, remain the property of Lennox and must not be utilised (except in the operation of this product), reproducted, issued to or made available to third parties without the prior written agreement of Lennox.

1. THX : DESIGN AND TECHNOLOGY 02

2. FEATURES AND BENEFITS 03

3. CONFIGURATION DIGIT 04

4. MANUFACTURING SPECIFICATIONS 05 5. CONTROL SOFTWARE AND HARDWARE 09

6. LIST OF MAIN OPTIONS 10

7. TESTS AND REFERENCE STANDARDS 128. TECHNICAL DATA 13 9. DIMENSIONAL DRAWINGS 14

Page � - Application Guide @DNOVA-THX-AGU-0907-E

THX : DESIGN AND TECHNOLOGY

THX = Design & Technology

THX unitTheunitsoftheseriesTHX.LennoxTelecomunitsWallmounted.are tobeusedfor theconditioningofsmallandmediumsizedtelecommunicationstransceiverstationsorswitches.

Wall mountingThemachinesaredesigned foranoutdoorwallmountingwithPlug&Playlogic,toreducetheinstallationtimesandtheneedofspecific professional skills in the installation step.

Direct expansionTheTHX units are single-block conditioners with direct expansion andaircondensation.Theinnovativesystemofaircirculationem-bodies a significant improvement of the performances in different thermalloadconditions.

Reduced noise levelThe use of innovative axial fans with 6-pole backward curved blades, together with a Scroll-type compressor and a cabinetdesign eliminating every source of inner sound reflection and vibrations,makes this equipment suitable especially for city areas.

Minimized pressure dropThewholerecirculatingandFree-Coolingsectionhasbeende-signedtolimitthepressuredrop(airside)andtomaximizetheunitperformance;forthisreason,theTHXunitsarefeaturedbythe exclusive equipment with backward curved blade centrifugal fans(Plugfans),thewidesurfacesoftheevaporatingcoilsandof the intake grilles, in line with the supply standard of the main phonecompanies.

StructureThe unit supporting structure is made of thick galvanized sheet, while theouterpart is inaluminumalloy5005 (standard)or inpaintedgalvanizedsheetmetalRAL9002(optional).Itisfeaturedbyroundedshapeedges,accordingtoinnovativestyletrendsandtheaccidentprevention.Allstructuredetailsareentirelyprodu-cedin-housewithautomaticprocessesintegratingtheCAD-3Ddesigning(solidmodeller)withtheproductionprocess(CAM)=CAD-CAM.

PanellingAllouterpanelsarefastenedusinganti-vandalscrewsTORX®,while the front ones are equipped with handles for an easy removal forinspections.Theunitmaintenancecanbefullymadefromthefront, includingthe innovativeextractabledampersection.Thisenables a unique flexibility, with unit ."On Site Upgrading".and the possibilitytoaccessandcleanthecondensatecollectingtray.

Power suppliesAllunitsareavailablewithdifferentsupplyvoltages,withtheoptionofdoublepowersupply.Inthiscaseit ispossibletohavea48vdcor24Vdcsolutionfortheair-conditioningcontrol,evenincaseofpowerfailure.

European directivesTheTHXunitsaredesignedandmanufacturedaccordingtotheEuropean directives currently in force, and are consequently marked CE.


FEATURES AND FORTES

Features and fortes

Design vs. Technology?TheTHXunitsintroduceanewplantmodelfeaturedbyapleasantdesignmatchedwitharationalarrangementofthecomponentsandanexcellentassemblycompactness.Thesingle-compressorunit reduceddimensionsenable to install twounitsona2.20-mwall,asforthesheltersincludingtheministationsforwirelesstelephony.ThespecialLennoxconceptofSFT.SideFree-CoolingTechnology.enablestoreacharealoperationunderpartialloadconditionswithpossiblesimultaneousmechanicalcooling,evenwhenthetwounitsoperatetogether.Thetwo-compressorseries.2.matchesthesafetyofthetwomachineswiththeinexpensivenessofthesingleunit,withapowerrangecoveringabout80%oftheinstalled.Allunitsarefactorytestedbyusingautomaticsystemsbasedonobjective.in-out.criteriaandarereadytobeinstalledandstartedbysimplewiringonsite.

Start-UpThe holes arranged on the rear flange enable the machine/s wall-mounting;thecondensatedischargeistobearrangedandthepowersupplyistobeconnected.Incaseofunitswiththree-phasemain supply, check the phase correct sequence (the indicator on the phase sequence relay in the electric board switches on): in case of wrong sequence, themP control records an alarmand doesnotenablethecompressorstart.Thestartingprocedureisoperated by pressing the key .ON. on the control keyboard.

HandlingThe THX units can be handled by fitting belts under the base and paying attention to make them pass through the supplied anti-tilting eyebolts,fastenedintheuppersidepart.

Noise levelsTheTHX unitsincludetheexclusiveuseofventilationsolutions,featured by a low emitted noise level making these conditioners compatiblewithcityinstallations.Thesupportstructure,thepanelsandthefasteningsystemsaredesignedtoreducevibrationsandtheir transmission as low frequency sound emissions as much aspossible.

Energy efficiencyThe highest possible energy efficiency has been the maintargetinthewholethermo-dynamicandaeraulicdesigning.Therefrigerating circuit is featured by the use of .rolling piston. or.Scroll.compressorswithtopreliabilityand(optional)possibilityof replacing the traditional lamination component with anelectronically-controlled electric valve: this brings a reduced energyconsumptionby50%whentheoutertemperaturelowersbelow20¢XCand,aboveall,whenthedirectfree-coolingisnotpossible.Theaerauliccircuit implies theuseofcentrifugal fans

with backward curved blades, featured by a very high reaction degree,itisthuspossibletoremovethescrollandtherelevantenergylossesinthedynamic-staticalconversion;allusedfanscan be equipped with .brushless. motor with permanent magnets andrelevantswitchingelectronics,thatcanbedirectlypoweredbyanemergencymainsat48Vdcor24Vdc.Inthiscase,thedc motor efficiency matches with the fan efficiency, thus reaching outstanding energy results (over 45%). The SFT® conceptdevelopedbyLennoxachieves,aswellasexceptionalaeraulicperformance,atrueexploitationeventogetherwiththemechanicalcycle: this contributes remarkably to reduce energy costs in the rangeofoutertemperaturesbetweentheinnersetpointandTFT(TotalFree-Coolingtemperature).

Emergency situationsAll units can be equipped with dual supply, main supply and "dc" supply.

• Main supply:-Compressor-Heating-Condensingsectionfan

• 24 V dc or 48 V dc supply:-evaporatingsectionfan-Microprocessor-Damperservomotor

In caseofmains failure,a voltagepresence relaysignals thisto the "mP" control that, together with the ventilation and Free-Cooling section, continues to be powered by back-up batteries. Thisensurestheair-conditioningcontrolevenwithpossibleinnertemperaturevariationsfromtheset-pointvalues.ManufacturingfeaturesAllelectric,aeraulicand refrigeratingcomponentsareassembledinsidethemachinecabinetandcannotbeaccessedfrom outside, without removing the panels.All removablefasteningsby.AVAScrews.needspecialtools(optional)fortheirremoval.Themachinehasamin.protectiondegree IP44andtheprotectiongrillesoftherotarypartscomplywiththeaccidentpreventionsectionofthenormsEN60335;asoption,afurtherprotectinggrilleforthecondensingsectionfanfrontisavailable.

UpgradingTheTHX seriesisdevelopedontwodimensional.frames.only,inthesingle-compressorversion,andonasingle.frame.inthetwo-compressorversion.Thisenablestheupgradingofthebasicradiostationsduetotheimplementationofnewtransmissionstandards,andthereforetotheincreasedinnerthermalload.


THX0 045 1 H123456789

0 230 V / 1 Ph / 50 Hz1 230 V / 1 Ph / 50 Hz + (24 V dc)2 230 V / 1 Ph / 50 Hz + (48 V dc)3 230 V / 1 Ph / 50 Hz + (230 V / 1~ / 50 Hz)4 400 V / 3 Ph + N / 50 Hz5 400 V / 3 Ph + N / 50 Hz + (24 V dc)6 400 V / 3 Ph + N / 50 Hz + (48 V dc)7 400 V / 3 Ph + N / 50 Hz + (230 V / 1~ / 50 Hz)ABC0 R407C12 R2234 R134a5

6DE01FGH012789KLMNPQ125

CONFIGURATION DIGIT

Confiuration DIGITS

Family: Lennox Telecom Wall mounted

Refrigerant capacity"KW x 10"

1 - Supply + (Auxiliary)

2 -Check BASIC(withlocaluserterminal)-[CarelìAC]ADVANCED(withoutterminal-local)-[CarelpCO2]ADVANCED(withbuilt-interminal)[CarelpCO2]

3 -Refrigerating cycle optionsR407C + electronic thermal expansion valve

R22 + electronic thermal expansion valve

R134a + electronic thermal expansion valveOther

4 -Cabinet options AluminumPeralumanAlloy5005Paintedgalvanizedsheet

5 -Electric re-heating Heaters-NOHeaters-YES

6 -Free-Cooling WithoutFree-CoolingModulatingFree-Cooling0-10VFree-Coolingwithspringreturn

7 -Air filtration G2Filter(Std.)G3FilterG4FilterG2 Filter + Clogged filter sensorG3 Filter + Clogged filter sensorG4 Filter + Clogged filter sensorOther

8 -Condensation control WithoutcondensationcontrolOn / OffModulatingwithpressuretransducerModulatingwithtemperatureprobeFlooding-type

9 - Serial communication options SerialcardRS232ModemSerialcardRS485Free"-1-" only for ADVANCED control


mANUFACTURING SpECIFICATIONS

Recirculation air filtrationThe filter is located upstream the evaporating coil and can be easily extracted by removing the front panel dedicated to the filter/damper section. Thanks to its position, it filters both the recirculation and the fresh air in case of Free-Cooling: in the latter case, on the fresh air ejection section, a metal filterprevents the nesting inside the containerofsmallanimalsorinsects.Thewashablesynthetic-typefiber filter, with efficiency EU2, is installed in a galvanized sheet frameforaneasymaintenance.

Condensing section fanTheaxial-typeusedfans,withwing-shapedblades,arefeaturedbyahighcoveringdegree.Allused6-polemotorslimitthesoundemissions, and are outer rotor type to improve the energy effi-ciencyandreducethemagneticnoisewhentheyareadjustedwithphasedisconnectingdevices(optional).

Condenser with finned packWith dimensions 25x21.65 and a 3/8. pipe it is composed of 0.10-mm thick aluminum fins and copper pipes expanded on the sameforacompletecontact.Thedesigncriteriaprivilegesthefrontsectionwiththeadvantageofreducedlossesontheairside,sothat it ispossibletouse6-polefanswithminimizedemittedsound power. The condensing coil can be equipped with a metal filter that can be easily removed fromone of themachine sides: this doubleaccessenablesthemaintenanceevenincaseofdoubleinstallationonthecontainerwall.

Electric board

Itislocatedinaseparatecabinethidden on the back side by the recirculationairbeforeitiscoo-led by the evaporating coil : this aspectisextremelyimportantforboththecomponentcoolingand,atthesametime,forpreventingthecondensationonthebottomside of the board.All on-board systems comply with the EECDirective "Low tension 73/23" and with the related norms. The accesstotheelectricboardispossiblewithoperatingunitasitis completely separated from the air flow; the protection degree withopenpanelisIP20.

Manufacturing specifications

StructureTheTHX seriesunitsarededicatedtotheoutdoorusewithtem-peratures rangingbetween .20°C(undercondensationcontrol)and +45°C. The entire inner structure is made up of hot electro-galvanized sheet with high thickness, and the outer paneling is in smooth 5005 aluminum alloy or, upon request, in galvanized sheet paintedwithepoxy-polyesterpowdersRALxxxx,oven-curedat180°C.Ifpainted,thecolouroftheunitsdependsonthecustomer.s specifications for re-order batches of more than 20 pieces. The innovativeglobaldesignofthemachineenablesacompletefrontaccessibility whereas the outstanding possibility of extracting/fitting thedamperfromthefrontoffersthedoublechanceofupgradingonsiteofthemachinesoriginallywithouttheFree-Coolingoption,and itoffers theaccessibility to theevaporatingcoilandto thecondensatecollectiontray,too.

Refrigerating circuitTherefrigeratingcircuit isentirelyinhousemanufactured, using welders certified accor-ding to the Directive PED 97/23 on pressuri-zedcontainers,andallrelevantcomponentsare certified according to the same directive. Theexclusiverotaryorscroll-typeusedcom-pressors are available in the version for fluids typeHFC(R407C;R134a);forthenon-EECcountries signing theMontrealProtocol, inthe version with HCFC R22.The machinestandard equipment includes a thermostatic lamination valve and a vacuum start device: thisdeviceisenclosedintheScrollcompressororisoutsideinthe versions with single-phase rotary compressor/s. The circuit is completed with anti-acid dryer filter with molecular sieve, a flow indicator and pressure intakes for the maintenance and/or inspectionoperations.

Evaporating section fan

TheTHX units are fitted with centrifu-gal-type fans, with (tilted) backward curved blades and single intake. These fansare featuredbydivergingbladeducts and by a high outer diameter/in-nerdiameterratio,enablingtoachievean outstanding aeraulic efficiency; fur-ther,ahighoutputspeedandthereforealaunchoversevenmeterscanbereachedthroughtheirpositiontowardsthedeliverygrille.All machines can be equipped with fans powered by brushless motorswithpermanentmagnets,dcsuppliedat48Vor24V,andinthiscase,combinedwiththeADVANCEDmicroprocessor.Therefore,itispossibletopilotdirectlytherotatingspeedsuitingit to the different operating conditions, such as: de-humidification, energysaving,etc.

Finned pack evaporatorWith its dimensions 25x21.65 and a 3/8. pipe it is composed of 0.10-mm thick aluminum fins and copper pipes expanded on the sameforacompletecontact.Thedesigncriteriaprivilegesthefrontsectionwiththeadvantageofreducedlossesontheairside,whilethe exchange surface is sized so as to avoid de-humidification at theprojectratedconditions.Thecondensatecollectiontraycanbeaccessedfromtheunitfrontforcleaning,andcanbeingalvanizedsheetor,asoption,inausteniticstainlesssteelAISI304L.


RS485

Modbus® RS485

BACnettTM RS485

LonWorks® RS485

Trend RS485

Tcp / Ip RS485

GSM

RS485

Modbus® RS485

BACnetTM RS485

LonWorks® LONRS485

Trend

Tcp / Ip RS485

GSMRS232


PackingThe THX units are packed on wooden pallet with anti-shock cardboardanglesand upper protection in cardboard/polystyrene. In the end, the whole packing is wrapped with protection transparent polythene film.

InterconnectivityAllunitscanbeconnectedwithremotesupervisionsystemsbytheuseof.Gateway..Whenusingthe.mP.controlofthe.ADVANCED.type,thereisthepossibilityofpilotingdirectlyaGSMmodemabletosendandreceiveSMSmessages.

Application fieldThe machines have been designed to operate with outdoortemperatures "oT" up to +45°C and indoor temperatures "iT" rangingbetween18°C -R.H. 40%and35°C -R.H. 50%.Fortheapplicationswithlowoutdoortemperature,thecondensationcontrol is required: -AbsentforoT>20°C -Modulatingfor-20°C<oT<20°C -Flooding-35°C<oT<-20°CUptomax.6unitscanbeconnectedforthestand-by.rotationcontrol, with mP BASIC, in LAN (Local Area Networking), while uptomax.15unitscanbeconnectedwithADVANCEDtypemP,sharingtheoperatingparametersandenablingthestand-byro-tationandre-startoftheinstalledmachines.Indoortemperaturefrom 21_C (fromR.H. 30% to R.H. 80%) to 32_C (R.H. 40%)withoperatingcompressor.Refer to theperformance table foreachmodel (Tab.4,Page13).The interconnectionpossibilities,accordingtocontroltype,aresummarizedinthetwotablesbelow(Tab.1andTab.2).

PROTOCOL SERIAL CARD GATEWAY NOTES

ProprietaryCarelNotnecessary RS485 network connectionRS485 / RS232 converter (PC485KIT) ConnectionwiththesupervisionPC

GatewayModbus® RS485 network connection

GatewayBACnettTM RS485 network connection



Gateway TCP / IP Ethernet network connectionRS485controllocalnetwork PlantWatch + GSM modem PlantWatchoperatesasconcentrator

Tab.2 - mP BASIC

PROTOCOL SERIAL CARD GATEWAY NOTES

ProprietaryCarelNotnecessary RS485 network connectionRS485 / RS232 converter(PC485KIT)

ConnectionwiththesupervisionPC

Notnecessary RS485 network connection


Notnecessary Forthededicatedprogramming,contactLEN-NOX

Trendserial Notnecessary Forthededicatedprogramming,contactLEN-NOX

Gateway TCP / IP Ethernet network connection

GSMmodem Forthededicatedprogramming,contactLEN-NOX

RS485controllocalnetwork PlantWatch + GSM modem PlantWatchoperatesasconcentrator

Tab.1 - mP ADVANCED

Application Guide @DNOVA-THX-AGU-0907-E - Page 7

12

3

4

5

6

7

8


Fig.1 - Machine Main Units

Tab.3 - Machine Main Units

RE. DESCRIPTION

1 Compressor

2 Condensingsectionfan

3 Free-Coolingdamper

4 Air filter

5 Electricboard

6 Evaporatingsectionfan

7 Evaporator

8 Condenser


mACHINE FUNCTIONAL SCHEmES

Machine functional schemes

Fig.2 - MECHANICAL COOLING Fig.3 - FREE COOLING

Fig.4 - MODULATING FREE COOLING Fig.5 - AIR FLOW IN COMBINED OPERATION

Delivery air

Recirculation air

Free cooling-air

Condensation air

Indoor

Outdoor

Indoor

Indoor

Outdoor

Outdoor

Application Guide @DNOVA-THX-AGU-0907-E - Page 9

CONTROL SOFTwARE AND HARDwARE

Control software and hardware

BASIC [Carel ìAC] + ADVANCED [Carel pCO2]The THX units can be sup-pliedwithtwomicroprocessorcontrol levels :

• BASIC with user interface4x20LCD

•ADVANCED : optional confi-guration: with built-in display 4x20LCD

FortheADVANCEDcontrols,aremotedisplayisavailable,too,andcanbepositionedupto200m farwithasimpleplug-inconnectionwithphone-typecable.Allmicroprocessors,BASIC,ADVANCEDandADVANCEDwithbuilt-indisplay4x20LCD,enabletocontrolcompletelytheunits,such as :

•Sensors- room temperature to keep the inner set-point-outertemperaturetopilottheFree-Coolingdamper- delivery temperature to prevent the risks of thermal shocks of the room electronic equipment-condensingpressure(optional)-evaporatingpressure(optional)

•Functions-roomtemperaturemanagement-readingoftherelativehumidity(optional)-controloftheairoutletmin.temperatureintheenvironment- control of the air de-humidification by reducing the fan speed(withoptionalsensorandwithoptionaldcfans)

-heating(optional)- alarm control equipped with clean contacts for the remote connectionsofvisualandsoundsystems-stand-bymanagementoftwounits.TheLANconnectionbytheADVANCEDmicroprocessor,ensuresotherfunctionssuchasSMART,Free-Cooling,modemsharing,etc.-cleancontactsforeveryothertypeofalarm(optional)-fromthemicroprocessoritispossibletoselectthe automatic restart after a voltage lack-min.timebetweentwocompressorstart-ups-remoteinterface,upto200m,directlyconnectedusingaLANconnection(formPADVANCED)-possibilityofconnectingtheunitwithasupervisionsystem(optional)- 2 password levels to access the unit configuration- clock card for recording the even date and time-hour-countertoenableascheduledmaintenanceofthefans, compressors and filters-automaticswitchingbetweentwocompressorsforeachunitwithdoublerefrigeratingcircuit.Thealgorithmcanbeselectedtoachievethe.oneinoperation.oneinstandby.strategyortoachieveabalancedoperating timebetween twocircuits.Thesecondcircuit,too,isstartedwhenexceedingthepresetset-pointtemperature,independentlyfromtheselectedcontrolstrategy.

Note : the ADVANCED control is available for all units with double circuit, only.

mP ADVANCED [Carel pCO2] technical data

• Flash memory: ........... 1MByteexpandableto16MByte• RAM memory: ............ 256 kByte expandable to 1 MByte• Parameter memory: ... 2 kByte• Analog inputs: ............. B4 - B5 = two inputs for NTC probes (-50 ÷ 100°C), PT1000 (-100 ÷ 200°C) / clean inputs B1 - B2 - B3 = three inputs for NTC probes (-50°C ÷ 100°C); voltage 0 ÷ 1 V dc / 0 ÷ 10 V dc current 0 ÷ 20 mA / 4 ÷ 20 mA• Analog outputs: .......... Y1 - Y4 = four opto-insulated outputs 0 ÷ 10 V dc, max. load 10 mA (1 k )• Digital inputs: .............. ID1 - ID8 = eight opto-insulated inputs 24 V ac 50/60 Hz / 24 V dc• Digital outputs:............ No.1÷No.8=electro-mechanicalrelays

mP BASIC [Carel ìAC] technical data

• Analog inputs: ............. B1 - B2 - B4 = three inputs for NTC temperature probes (10 k .a25°C) B3 = one input for humidity/pressure probe (0 ÷ 1 V dc / 4 ÷ 20 mA) + V = probe supply output(14Vdc,30mAmax.)• Analog outputs:........... Y1 = output 0 ÷ 10 V dc, not opto-insulated, referred to the supply potential G0, max. load 10 mA (1 k ).) Y2=phasedisconnectionoutput• Digital inputs:............... ID1-ID10=tennon-optoinsulatedinputsreferredtothesupplypotentialG0,supplied with24Vac,currentabsorbedbyeachinput6.5mAat24Vac• Digital outputs:............ OUT1-5=5SSR,24Vac,1A,withmin.current20mA OUT6-C6=1relay,220Vac OUT7-C7=1relay,220Vac

Page �0 - Application Guide @DNOVA-THX-AGU-0907-E

LIST OF mAIN OpTIONS

1 - ADVANCED microprocessorProgrammablemicroprocessor with 16bit and high performan-ces. 2 - Air differential pressure switch 3 - Double supply

• AC main supply from the mains:- compressor/s- fan/s of the condensing section-heating

• Auxiliary supply 48 V dc (24 V dc, upon request):-microprocessor-evaporatingsectionfan-damperservomotor

Note :it is possible to activate the fan speed control to enable the coil energy saving during its operation.

SFT® "Side Free-Cooling Technology"TheinnovativeFree-Coolingsystemenablestoreachoutstandingefficiency levels, above all when operating simultaneously with the mechanical cooling: this situation, in many central European climateareas,representsover50%oftheyearlytotalhours. 4 - Refrigerant R134aFor extreme outdoor conditions up to +55°C. 5 - Free-Cooling with damperThanks to the unit designing principle, it is possible to carry out the .upgrading on site. on the units not equipped with the Free-Coolingoption

6 - ETV--T “Electronic Thermostatic Valve Technology”ForapplicationswherethedirectFree-Cooling is not possible.This solutionenablestoreducetheenergyconsump-tionupto50%comparedtothestandardunits when the outdoor temperatureis below 20°C.The damper is furtherdesigned to be integrally extracted,thusenablingacompletemaintenancepossibilityaswellastheaccesstothecondensatecollectiontray. 7 - Humidity sensorFortheenthalpiccontrolintheFree-Coolingsituations(combinedwiththemPADVANCEDcontrol). 8 - Condensation control 9 - Interconnectivity

• Serial port:-RS232-RS485

• Communication protocol:-Carel-Modbus©

- LonWorks®

-BACnettTM

-TCP-IP- GSM modem (complete management through SMSServices).

TheTHXdesigningconceptenablestheupgradingonsiteofunitsnot equipped with the Free-Cooling option; this is important in such cases where it is necessary to have a unit stock at disposal.The temperature sensors installed at delivery, intake and fresh air control completely the damper, improving its energy efficiency and avoiding the risk of inlet air at temperatures lower than the limit allowed by the electronic equipment. In case of combination with DUAL supply, mains + dc UPS, the Free-Cooling can enable tocontroltheclimateeveninemergencysituationsand,ifthetwounitsarereciprocallyconnected,itcanimplementallstrategiesforavoidingtolosethecontroloftheinnersetpointofthecontainer(see Fig. 6).

Fig.6 - SFT® operating diagram

Coolingcapacity

Truecontainerthermal requi-rement

Free-cooling : capacity of oneunit

Free-cooling : capacity of twounits

RoomSetpoint

Roomairtem-perature

FFT1 FFT2

Application Guide @DNOVA-THX-AGU-0907-E - Page ��

LIST OF mAIN OpTIONS

Damper servomotor with spring returnItpositions thedamperscompletelyopenorcompletelyclosedat the customer's choice in case of power lack: with an operation signal connected with a fire alarm, the damper is usually positio-nedclosed,toenabletheoperationoftheautomaticswitching-offsystems. This option must be defined at the order.

Clogged filter sensorThis differential pressure sensor detects the filter clogging and generatesanalarmdisplayedbythemicroprocessorcontrol.

HeatingItisperformedbyusingheatersinextrudedaluminum,withhighthermal exchange surface: this aspect enables to match reduced thermalinertiaswithreducedsurfacetemperatures,totheadvan-tageofafullusesafety.Eachheatingelementisprotectedbyasafetythermostatdirectlyactingonthesupply.

Outer panelingThe standard supply includes panels in aluminum-magnesiumalloy5005, representing thebestsolution for the resistance toweather agents and for limiting the unit weight: the weight reduction vs. the version in painted galvanized sheet is averagely 32 kg.Surface treatments on finned coilsAn efficient protection against corrosive agents is guaranteed by thecopper-copperversion,thecataphoresisprotectionandtheuse of hydrophile pre-treated aluminum: the protection grade is reportedinthementionedorder.RefrigerantsAccording to the norm EEC 2037/00, the HTW units can operate with :

•HFCR407Casstandard•HFCR134a(optional)•HCFCR22Exportnon-EEC in thecountriessigning theMontrealprotocol

The unit is supplied: tested and ready to be started up on the site.AlarmsItreportshighandlowpriorityalarmsoncleancontacts.IncaseofADVANCEDmicroprocessor,itispossibletohaveasubdivisionofthealarmtypeintheterminalboardoftheelectricpaneland,generally,itispossibletoarrangeCustomsolutionsaccordingtothedifferentsupplystandardsofthephonecompanies.Air distribution grillesThewall-mountedairdistributionsgrillesaremadeofextrudedaluminum, with single row of adjustable fins and accident-preven-tionprotectionnetonthedelivery.IncaseofFree-Coolingunit,afurthernetisarrangedontheairoutlettopreventtheunwishedentry of small animals and/or insects.

Page �� - Application Guide @DNOVA-THX-AGU-0907-E

TESTS AND REFERENCES STANDARDS

Tests and Reference StandardsSafetyTheTHX unitshavebeendesigned,manufacturedand testedaccording to the directives of the European Union : • 98/37/EC (former 89/392/EEC, 91/368/EEC, 93/68/EEC) • 89/336/EEC • 73/23/EECElectric boardsTheelectricboardscomplywithEN60204-1.Electro--magnetic compatibilityTheTHX unit complies with the following EMC standards:

• EN 50081-1, Emissions (.Generic emission standard,Part 1: residential, commercial and light industrial., January 1992)• EN 50082-2, Electro-magnetic compatibility (.Genericemission standard, Part 2: industrial environment., March 1995)

ConformityEach THX unit is supplied complete with test certificate and conformity certificate according to the Directives of the European Union.The units are .CE. marked.


@DNOVA HTX 0451 0561 0731 0901 1051 1201 0902 1102 1302

As-hrae R407C

W 4500 5600 7300 8900 10150 11950 9100 10800 13200

V-n-f 230/1/50 400/3/50

V-n-f - 400/3/50 400/3/50 230/1/50

V-n-f230/1/50

+230/1/50

400/3/50+

230/1/50

V-n-f230/1/50

+VDC

430/3/50+

VDC

230/1/50+

VDC

430/3/50+

VDC

V-n-f -430/3/50

+VDC

430/3/50+

VDC

230/1/50+

VDC

430/3/50+

VDC

230/1/50+

VDC

W 1390 1880 2520 2960 3490 4350 2780 3650 4700

A 6,4 8,8 11,6 15,6 17,2 20,6 13,1 17 10,7

A 13,2 14,5 16,5 21,8 26,7 28 26 28,8 13

A 36 49 63 81 104 117 43 52 41

W 108 108 310 470 470 470 230 230 230

m3/h 1450 1450 2150 3020 3020 3020 2800 2800 2800

m3/h 1320 1320 1980 2810 2810 2810 2650 2650 2650

°C 16,8 14,4 16 17,6 16,9 14.05 16,8 15,1 12,5

EU2 EU2 EU2 EU2 EU2 EU2 EU2 EU2 EU2

dB-A 69 70 70 71 71 71 72 72 72

dB-A 42 43 43 44 44 44 45 45 45

Rotary Scroll Scroll Scroll Scroll Scroll Rotary Scroll Scrol

1 1 1 1 1 1 2 2 2

1 1 1 1 1 1 2 2 2

dm3 0,44 1 1 1,1 1,1 1,1 0,44 1 1

m2 0,3 0,3 0,3 0,38 0,38 0,38 0,37 0,37 0,37

m2 0,36 0,36 0,36 0,56 0,56 0,56 0,55 0,55 0,55

m3/h 3450 3350 3350 5100 5100 4800 5100 5100 4800

1 1 1 1 1 1 2 2 2

mm 1580 1580 1580 1630 1630 1630 1630 1630 1630

mm 804 804 804 999 999 999 1130 1130 1130

mm 498 498 498 596 596 596 596 596 596

kg 93,5 101,5 112,5 142,5 146,5 154,5 160,0 175,0 179,0

TECHNICAL DATA

Cooling mode

Refrigerant

Cooling Capacity @27°/40%, 35°

Standard Power Supply

Power Supply (Option 2)




Electrical dataTotal Absorbed PowerTotal Absorbed CurrentFLALRAIndoor Fan(s) absorbed Power in 230/1/50 executionIndoor Fan(s) absorbed Power in 48 V DC execution (optional)VentilationIndoor Air Flow

Indoor Air Flow during FreeCooling Operations @ 40 Pa

Full Free Cooling TemperatureFiltrationAcousticSound Power LevelSound Pressure Level @10 meters in Free FieldRefrigeration circuit

Type of compressor

Number of refrigerating circuitsNumber of compressorsOil charge per compressorIndoor Coil Front SurfaceOutdoor Coil Front SurfaceCondenser Air FlowNumber of condenser’s fanDimensions and WeightOverall dimensions: height HOverall dimensions: length LOverall dimensions: depth DWeight

Technical data - @DNOVA - HTX

FLA : Max.operating current LRA : Pick-up current


DImENSIONAL DRAwINGS

Dimensional drawings : mod. THX 0451 - 0561 - 0731

Side viewFront view

Top view

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@DNOVA-THX-AGU-0907-E

BELGIUM, LUXEMBOURG

CZECH REPUBLIC

FRANCE

GERMANY

NETHERLANDS

POLAND

PORTUGAL

RUSSIA

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SPAIN

UKRAINE

UNITED KINGDOM AND IRELAND

OTHER COUNTRIES

Due to Lennox’s ongoing commitment to quality,

the Specifications, Ratings and Dimensions are

subject to change without notice and without

incurring liability.

Improper installation, adjustment, alteration,

service or maintenance can cause property

damage or personal injury.

Installation and service must be performed by a

qualified installer and servicing agency.

Application guide @DNOVA - THX · Design vs. Technology? The THX units introduce a new plant model...

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Transcript of Application guide @DNOVA - THX · Design vs. Technology? The THX units introduce a new plant model...