AIR CONDITIONING • HEATING 6 AIR HANDLING UNITS - .AIR HANDLING UNITS 06.01-01 AHU - AIR HANDLING

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Text of AIR CONDITIONING • HEATING 6 AIR HANDLING UNITS - .AIR HANDLING UNITS 06.01-01 AHU - AIR HANDLING

Pernik

Blagoevgrad

Petrich

Smolian

Plovdiv Haskovo

Kazanlak

Gabrovo

Sliven

Office of Tangra

Distributor of Tangra

Head office

Office Varna

Office Burgas6, Transportna Str.

Tel.: (00359 56) 861 200e-mail: bourgas@tangra.bg

Tel.: (00359 52) 611 767e-mail: varna@tangra.bg

West Industrial Rangebehind printing house Varna - East

Shumen

Ruse

Gorna Oriahovitsa

Stara Zagora

Vratsa

Sofia

Varna

Burgas

174, Europa Blvd.1331 Sofia, Bulgariawww.tangra.bgTel.: (00359 2) 925 05 99; 925 06 10Tel.: (00359 2) 927 58 13; 972 71 80Fax: (00359 2) 925 05 57e-mail: office@tangra.bg TECHNICAL CATALOGUE

AIR HANDLING UNITS

VENTILATION AIR CONDITIONING HEATING

6

TECHNICAL CATALOGUE

AIR HANDLING UNITS

VENTILATION AIR CONDITIONING HEATING

6

We reserve the right to introduce alternations both in design and technical data without prior notice, due to continued product development. www.tangra.bg

CONTENTS

AIR HANDLING UNITS

06.01-01 AHU - AIR HANDLING UNITS 3

06.01-02 DESCRIPTION ON TYPES OF SECTIONS 4

06.01-06 HORIZONTAL VERSION - AHU - H Schemes, overall and joined dimensions 8

06.01-08 DOUBLE-DECK VERSION - AHU-DD Schemes, overall and joined dimensions 10

06.01-10 UNIT SECTIONS Schemes, overall and joined dimensions, weight 12

06.01-16 THERMAL CHARACTERISTICS 18

06.01-18 AERODYNAMIC CHARACTERISTICS 20

06.01-26 RECOMMENDATION FOR INSTALLATION 28

06.01-28 FUNCTIONAL SCHEMES FOR MANAGEMENT, CONTROL EQUIPMENT AND AUTOMATION 30

www.tangra.bg We reserve the right to introduce alternations both in design and technical data without prior notice, due to continued product development.

We reserve the right to introduce alternations both in design and technical data without prior notice, due to continued product development. www.tangra.bg

3

AIR HANDLING UNITS 06.01-01AHUH / AHU-DD

AHU AIR HANDLING UNITS

Air handling units are modular built for indoor or outdoor installation. Intended to be build in general ventilation and air-conditioning systems. Universal application: office buildings, stores, hotels and restaurants, swimming pools, industrial buildings, etc. Depending of the air flow, they could be separated in nine standard sizes from 6000 m/h to 45000 m/h.

Modifications depending on the installations of air handling units: AHUH-horizontalversion(airhandlingunitwithmixingandintermediatecoolant)(AHU06AHU45H) AHUDD-doubledeckversionwithheatexchangerair-air(AHU06AHU24)

Mod

el

increased noise requirments

regular mode

industrial systems

www.tangra.bg We reserve the right to introduce alternations both in design and technical data without prior notice, due to continued product development.

4

Description on types of sections

Description on types of sections

06.01-02 AIR HANDLING UNITSAHUH / AHU-DD

Construction

Supporting frame made of special aluminium profiles, connected with aluminium corners. Construction sides are closed with thermo and acoustic insulated panels. In thus structure (UU universal section) are incorporated allnecessary elements for air treatment.

Side panelsPanels made of galvanized sheet steel with powder coating at their external side (RAL7035) and heat and acousticinsulated middle layer.

Two versions of side panels are possible: Standardthicknessof25mmformodelsizesfromAHU06toAHU20

Standardthicknessof50mmformodelsizesfromAHU24toAHU45H

Onrequest-foroutdoorinstallationwiththickness50mm(AHU06AHU20)

Insulationpanelsmadeof extrudedpolystyreneXPS typewithdensity32kg/m,thermalconductivity=0.039W/mKand combustibility class M1.Upon request panels could be made of compressed mineral wool with density 60-100 kg/m, thermal conductivity=0.037W/mKandcombustibilityclassM0.Thepanelsarefixedwithself-tappingscrewsormetricbolts.Sides which should be opened for inspection and maintenance are performed as doors, equipped with knucklesandspeciallocks.Revisioncoverscouldbefixedtothesupportingframewithreamersuponrequest.Visual inspection is made through manhole incorporated in the panel.Sealing of the panels to the constructions is ensured by strips of self-adhesive cellular rubber.

U - Fan section

Thesectionconsistsofcentrifugalfanwithforwardorbackwardcurvedimpeller.Thetypeoffanisselecteddependingtothespecific requirements, according to the air flow and resistance of the installation: BDB-Belt-drivendoubleinletcentrifugalfanwithbackwardcurvedimpeller,standardversion(section03.07) CBP-Belt-drivendoubleinletcentrifugalfanwithforwardcurvedimpeller(section03.08)onlyformodelsAHU06,

AHU09,AHU12 BPF-Direct-drivensingleinletcentrifugalfanwithbackwardcurvedimpeller.TheimpellersmadebySoler&Palauarestaticallyanddynamicallybalanced.Mountedtotheframeonanti-vibrationmounts,equippedwithflexibleconnection.Thisavoidsthetransmissionofvibrationto the casing.Fansaredrivenbyelectricalmotor,usingbeltdriveordirectlyincorporatedtothefan.ThebeltswhichareusedaretypeBorSPB.Beltpulleysarewithfixingbush(hub).Foreasierbelttensionmotorsareinstalledonaslider.Allmotorsarethreephase400V/50Hz,protectionclassIP54,classFinsulationandworkingmodeS1(continuous).Ambienttemperature:-30C+40C.Maximumworkingtemperature+60Candmaximumaltitude1000m.

We reserve the right to introduce alternations both in design and technical data without prior notice, due to continued product development. www.tangra.bg

5

Description on types of sections

AIR HANDLING UNITS 06.01-03AHUH / AHU-DD

U - Thermal section

Includeheatingand/orcoolingsection(heatexchanger),dropseparatoranddraintray.Typesofsections(heatexchanger)thatcouldbeincorporated(section02.05): Two-rows(2R)basicallyusedinheatingmode. Four-rows(4R)basicallyusedincoolingmode. Six-rows(6R)andeight-rows(8R)couldbeproduceduponrequest.HeatexchangersWater-air(heatingandcooling)aretubular-platetype,madeofcopperpipeswithstrungonthemaluminiumfinswithstep2.3mm.Goodcontactbetweenpipesandfinsisachievedbymechanicaldistension.Incorporatedinthesectionbyguides(rails),ensuringthesealingbyair.Drop eliminator is a cassette of profiled blades, designed to retain the condensation after the cooling section. Made of special polymer profiles. Drain tray with connection, is mounted at the bottom of the cooling section. Siphonmustbeensured.Heshouldbeplacedbeforecondensationlineisconnectedtothebuildinginstallation.

AFU - Air filter section

Air filter section contains one or two consequently mounted air filters with different efficiency from lower to higher class from G2toF9,accordingBDSEN779(section02.03).ForroughdustseveralairfiltercassettestypeAFC-V(classG3)orAFC-Z(classG4)aremountedtogether.Thecassettesslideintothesectionthroughglides(rails)andarefixedwithprofilesandboltconnection.ForfinepurificationfilterwallmadeofseveralbadfilterstypeAFC-B(classF6F8).Thecassettesarefixedtothefilterwallthrough reamers.Air filter cassettes are disposable, they are consumables for the air handling units.In more specific the section could be completed with other type air filters: reusable metal filters, carbon or absolute filters, classH10H13.

www.tangra.bg We reserve the right to introduce alternations both in design and technical data without prior notice, due to continued product development.

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Description on types of sections

06.01-04 AIR HANDLING UNITSAHUH / AHU-DD

U - Mixing section

Buildofoneortwouniversalsections,horizontallyorverticallyadjoined.Equippedwiththreedampers(PRJmultipleleafdamper,section02.09): Outlet(exhaustair) Inlet(freshair) MixingmountedbetweenbothstreamsForsmoothcontrolisrecommendeddamperwithelectricmotor(actuator)anddeviceforuniformsignalcontrol.

RU-REC / RU-ROT Recuperative (heat recovery) section

RecuperativeheatexchangerAir-airincorporatedindoubledeckconstruction: RU-RECwithplateheatexchangertypeREC-AL,efficiency50-61%(section02.07). RU-ROTwithrotaryregenerativeheatexchangertypeRRU,efficiency67-80%.

HeatexchangersectionRU-REC is equipped with by-pass damper type PRJ(section02.09)atthefreshairstreamanddraintrayattheexhaustionside.By-passdamperisusedfordefrostingofrecuperatorinwinterandgavethepossibilityforworkinginfreecoolingmodeduringtransitionalseasons.Theheatexchangertransferheatonly,fromthewarmtothecoldair stream. Suitable for dehumidification of swimming pool installations.

Section RU-ROT is provided with rotary aluminium recuparator with motor and control panel. The recuperator transfer heat and moisture between both streams. Suitable for air-conditioning installations at premises without large separation of moisture.

Efficiencyofheatexchangersdependsontheirtypeandspecificparametersoftheair.Calculatedtoeachindividualcase.

REC-AL ROT

We reserve the right to introduce alternations both in design and technical data without prior notice, due to continued product development. www.tangra.bg

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Description on types of sections

Options and additional features

AIR HANDLING UNITS 06.01-05AHUH / AHU-DD

SAU - Sound attenuators section

Build inuniversal sectionbaffles,placedparallelof theair stream.Bafflesmadeofplatesoffiber-glass,wrapped inglassmaterial to prevent atomization, protected by a safety metal grid and frame of galvanized steel sheet. Standard version: SA10/10baffleswiththicknessD=100mmanddistancebetweenbafflesS=100mmeffectivefrom500to4000Hz

(middlerangefrequency).SectionlengthL=1000mmOncustomersrequest: SA10/6baffleswiththicknessD=100mmanddist