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BJMC
BeijingAustarPharmaPackagingMaterial
DocumentNumberandRevision:
BJMC-02-01-AHU11-FS-1.0
FunctionalDescriptionforAHU11 Page
#
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FunctionalSpecificationforAHU11
ProjectName
ExtensionofFilmFacilityHuaiRou
ProjectNo.
BJMCFP201003
Plant/Building
HuaiRou/PCM2
Unit
HVAC
Equipment
AHU11
DocumentCode
BJMC_02_01_AHU11_FS_1.0
Revision
1.0
Name
SignatureReason
Function/Department
Date
Signature
MarkHu
Author
ProjectManager
Tableofcontents
TOC\o"1-5"\h\z
\o"CurrentDocument"
Base 3
\o"CurrentDocument"
Introduction 3
InterfacestootherSystems 3
Timeswitchingfunctions 3
Dependencies 3
Energymanagement 4
Emergencypowerassignments 4
Topologyofautomations, operatingsystem 4
\o"CurrentDocument"
Useraccess 4
Controlfunctions 5
Safetyfunctions 5
\o"CurrentDocument"
Temperature 5
Pressure 5
Humidity 6
\o"CurrentDocument"
Fire 6
Gas 7
\o"CurrentDocument"
Specialfunction 7
Standardfunctions 8
Start-up 8
Shut-down 8
ManualoperationofElectricpanel 9
ThedetailedfunctionspecificationwillbedescribedinFSPLCandelectriccontrolsystem.9
Specialfunctions 9
Regulating 9
Controlloops 9
Temperature 9
\o"CurrentDocument"
Pressure 10
\o"CurrentDocument"
Humidity 10
Specialfunctions 10
RevisionHistory
Reasonsforchangescomparedtopreviousversion
RevisionNo.
Date
Author
DescriptionofChanges
1.0
MarkHu
New
Base
ThisFunctionalDescriptionisbasedupontheUserRequirementSpecification(BJMC_MRS_HVAC_AHU11/12_URS_1.0)forHVACSystemsandP&IDdrawing(BJMC_02_01_AHU11_PID)initcurrentversionanddescribesallautomationfunctionsbelongingtothePLCforthisinstallation.FurthermoretheOQfunctionaltestsoftheinstallationwillbebaseduponthisdocument.
Introduction
Thisdescriptiondefinestherequiredmeasurement,controlandregulatingfunctionsoftheAirHandlingUnit,AHU11.
InterfacestootherSystems
Timeswitchingfunctions
ID
Description
FS3.1-1
TheventilationsystemAHU11istimedforcontinuousoperationandiscontrolledbyPLC.Thesystemcanbedisabledformaintenancepurposesbymeansofhandystoppingoncontrolpanel.
3.2.Dependencies
ID
Description
FS3.2-1
AstheCHWsystemsaretimedforcontinuousoperation,thetemperatureofCHWSis7℃,thetemperatureofCHWRis12°C
FS3.2-2
Freshairissupplieddirectlyfromoutdoor.Andanelectricpower-drivingdamperisinstalledinthefreshairduct;itshouldbeautomaticallyclosedwhentheAHUshutdown.
3.3.Energymanagement
ID
Description
FS3.3-1
Specialenergymanagementsystemisspecifiedduringtheconstructiondrawingbythedesigner.Thereturnairwillberoutedseparatelythroughthefirstreturnairsectionorthesecondreturnairsection.
3.4.Emergencypowerassignments
ID
Description
FS3.4-1
Thereisnospecialemergencypowersystem.
3.5.Topologyofautomations,operatingsystem
Useraccess
Everylogin,logoutandallchangesareloggedinalogfile;alldedicatedpeoplearementionedintheauthorizationlist.Allaccesswillbeautomaticallyreported,exceptthe“everybody”accessforinformationwithoutaction(resetting,parameterandsoftwarechanges).Thefollowinglevelsofuseraccesstothesystemwillbeprovided:
ID
Description
FS3.6-1
Administratorlevel:
FullaccesstotheconfigurationandparametersofthecontrollersbylaptopcomputerorPLCpanel:
OnlythededicatedmaintenancepeopleofAustarorofthemaintenancecontractor.Accessthroughdedicatedpassword.Theseusersareallowedtoaccessandchangeallparameters.
FS3.6-2
Userlevel:
FullaccesstotheconfigurationandparametersfromthelocalPLCpanel:
Accessthroughdedicatedpasswordallowedtoaccessandchangeparameters.
FS3.6-3
Everybodylevel:
AccesstoallofparametersdisplayedonthePLCpanelsforreviewonly.
4.
Controlfunctions
4.1.
Safetyfunctions
4.1.1.
Temperature
ID
Description
FS4.1.1-1
Nosafetytemperaturecontrolisrequiredforthissystem.Buttemperaturealarmfunctionisequipped.Thedetailedfunctiondescriptionseethedocument:BJMC_02_01_AHU11_ALM
Pressure
Supplyductpressure
ID
Description
FS4.1.2.1-1
Asafetypressurevalveswillbeinstalledinthesystem.
4.1.2.2.Differentialpressureofpre-filterG4
ID
Description
FS4.1.2.2
TheFilterDifferentialPressureGaugeofpre-filterG4shallbemonitoredaspartofroutinemaintenance.Ifthedifferentialpressureisabovethemarkedmaximumlimitmaintenanceactionwillbeneeded.Theventilationsystemremainsinoperation.Analarmsignalwillbesenttocontrolpanel,alightandsoundalertwillberaisedbyalamp.
4.1.2.3.Differentialpressureoffine-filterF7
ID
Description
FS4.1.2.3
TheFilterDifferentialPressureGaugeoffine-filterF7shallbemonitoredaspartofroutinemaintenance.Ifthedifferentialpressureisabovethemarkedmaximumlimitmaintenanceactionwillbeneeded.Theventilationsystemremainsinoperation.Analarmsignalwillbesenttocontrolpanel,alightandsoundalertwillberaisedbyalamp.
4.1.2.4.Differentialpressureoffinal-filterH13
ID
Description
FS4.1.2.4
ThereisnoDifferentialPressureGaugeforfinal-filterH13.Specialpressuredifferentialtestdeviceshouldbeequippedinthefilterhouse.Pressuredifferentialtestshallbemonitoredaspartofroutinemaintenance.
4.1.3.Humidity
ID
Description
FS4.1.3-1
Dehumidification
FreshAirisdehumidifiedbycoolerandelectricpowerheaterinsummer.
ID
Description
FS4.1.3-2
humidification
Airishumidifiedbyelectricpowerhumidifierinwinter.
ID
Description
FS4.1.3-3
Humidityalarmfunctionisequipped.Thedetailedfunctiondescriptionseesthedocument:BJMC_02_01_AHU11_ALM.
Fire
ID
Description
FS4.1.4-1
Afiredamperwillbeinstalledinthemainreturnairduct.Thefiredamperswillbeclosedindependentlyiftheanytemperatureisabove70℃.Theclosingtimeofthe“normallyopen”firedampersshouldbe30sec.
Thedamperishardwirelinkedtothecontrolsystem.Ifthefiredamperisclosed,controlsystemwillgiveafiresignaltoPLCsystem,asoftwarealarmmessagewillbesetup.Wholeventilationsystemwillbedisabledasdescribed.
TheventilationsystemwillremaindisableduntilthededicatedfiredamperhasbeenrearmedandtheresetpushbuttononthePLCpanelhasbeenreset.Afterresetting,theinstallationre-startsasdescribedin4.2.1.
FS4.1.4-2
Thefiredamperisallthetimeinopenposition.Otherwisethededicatedinstallationcannotstart(openpositiondetected).
4.1.5.Gas
ID
Description
FS4.1.5-1
Nosafetygascontrolsarerequiredforthissystem.
Specialfunction
Frequencyconverterforsupplyfan(withintegratedoverheatingsensor)
ID
Description
FS4.1.6.1-1
ThefanmotorM101,isprotectedbyfrequencyconvertersVSD101.
Thereisaselectionswitchonthecontrolpanel,thethreefunctionsshouldbeachievedaslistedbelow
TheVSDwillbeautomaticallycontrolledbytheV-sensorinstalledinmainsupplyairduct.
TheVSDcanbecontrolledbyhandyfrequencyadjustment.
ThefanmotorcanbeinoperationbyhandwhentheVSDisdisabled.
4.1.6.2.Frequencyconverterforreturnfan(withintegratedoverheatingsensor)
ID
Description
ID
Description
FS4.1.6.2-1
ThefanmotorM201isprotectedbyfrequencyconvertersVSD201.
Thereisaselectionswitchonthecontrolpanel,thetwofunctionsshouldbeachievedaslistedbelow
TheVSDcanbecontrolledbyhandyfrequencyadjustment.
ThefanmotorcanbeinoperationbyhandwhentheVSDisdisabled.
4.1.6.3.PowerFailure
ID
Description
FS4.1.6.4-1
Anypowerfailurewilldisablethewholeventilationsystem.
4.1.6.4.BuildingShutDown
ID
Description
FS4.1.6.5-1
Nobuildingshutdownisrequiredforthissystem.
4.2.Standardfunctions
Start-up
Supply,returnandexhaustfans
ID
Description
FS4.2.1.1-1
TheAHUstart-upmanually.Andallsystemairdampersarecontrolledbyhand.
FS4.2.1.1-2
Theexhaustfanstart-upmanually.Anditonlycansstart-upatrest.ThesupplyfanshouldbestartedfirstlywhentheAHUsystemstart.
4.2.2.Shut-down
ID
Description
FS4.2.2-1
TheAHUshut-downmanually.
FS4.2.2-2
Theexhaustfanshut-downmanually.Thesupplyfanshouldbeinter-lockedwithexhaustfan,thesupplyfanshouldautomaticallystopwhentheexhaustfanunexpectedstopping,theexhaustfanshouldautomaticallystopwhenthesupplyfanunexpectedstopping
4.2.3.ManualoperationofElectricpanel
Switch
Location
Function
Description
ThedetailedfunctionspecificationwillbedescribedinFSPLCandelectriccontrolsystem.
Specialfunctions
ID
Description
FS4.2.5-1
Nospecialfunctionsrequired.
5. Regulating
Controlloops
Temperature
Roomtemperature
ID
Description
FS5.1.1.1-1
Temperatureandrelativehumidityinroomwillbemonitoringseparatelybylocationgauge.Thedatawillberecordedmanually
5.1.1.2.Returntemperature
ID
Description
FS5.1.1.2-1
ThereturntemperatureTT201ismeasuredinthecommonreturnduct.
Thisreadingaveragesthereturnairtemperaturefromalloftheconnectedrooms.Thissignalcontrolsthesetpointofthesupplytemperatureloop.
5.1.1.3.Supplytemperature
ID
Description
FS5.1.1.3-1
ThesupplytemperatureTT101is
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