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<br /> " , , . ,.. , .. . . : . , . ; - � � �. prlando Florida :?2801
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<br /> � � ` �� " � � � � � � � �� � � � � ' COURTHOUSE ��
<br /> � � MODIfIEDSE�UENCEOfOPERATION �CHILLEDWATERSYSTEM RENOVATION
<br /> � SYSTEM OFF .
<br /> � I CHILLED WATER AN� CON�ENSER WATER PUMPS OFE �
<br /> �, CHILLERS OFF.
<br /> � . � CHRLERISOLAiIONVALVESCLOSE�. �
<br /> �� CONTROLLOOPSINACTNE.
<br /> � SYSTEM START: '
<br /> OPERATOR EMERE� COMMAN�AT THE BMS. project number ��
<br /> � � � AUTOMATICALLYBYTHEBMSBASEDONPREPROGRAMMEOSCHEDULE.
<br /> � CHILLER CONTROC THIS SYSTEM CONSISTS OF TWO CHILLERS.THE CHILLERS SHALL BE COMROLLED VIA THEIR OWN MTERNAL CONTROLS TO MAINTAIN A CHILLED HI-13�9100
<br /> . . WATERSUPPLYTEMPERATURE. ADOITIONALCHILLERSWILLBESTAGEDONANDOFFINORDERTOMAMTAINTHE �IFFERENTIALSETPOINTBETWEENTHESUPPLVAND consWtants/construction managers
<br /> � '� RETURNTEMPERATURES.CMLLER11SlEADANDCHILLER21StAG. CHILLE�WATERTEMPERATURESETPOWTWILLBERESETBETWEEN550EGFAND44DEGF. /�
<br /> � � ➢ � w �. wsvusAe�ea„ns��<
<br /> SYSTEM OPERATION�. p� I ses ara n.e��e.s��re azoo
<br /> �y �i Beallie,WA9B10<
<br /> - ' PUMP ASSOCIATE� TO THE LEAD CMLLER SHALL START AN� EVAPORATOR ISOALTION VALVE SHALL OPEN.AFTER FLOW IS PROVEN THROUGH EVAPORATOR START THE i ¢osi aaa-s_�o
<br /> � LEAD CHILLER THROUGH ITS UNIT MOUNTED STARTER AND CONTROLLER. �"�°`°'"
<br /> . A10�UlATE CHILLED WATER PUMP SPEE�TO MAINTAIN A PRE-0ETERMINED SVSTEM CMLLE� WATER F:OW SETPOINT FOR ONE CHILLER BUT NEVER BELOW 320 GPM.
<br /> ' � IFTHECMLLEDWATERSUPPIVTEMPERATURESETP0INTCANNOT6EMAIMAINED, PUMPASSOCIATEDTOTHELAGCHILLERSHALLSTARTAN� EVAPORATORI50ALTI0N
<br /> � . . VALVE SHALL OPEN,AFTER FLOW IS PROVEN THROUGH EVAPORATOR START THE LAG CHILLER THROUGH ITS UNIT MOUNTE� STARTER AND CONTROLLER.
<br /> � � MO�ULATECHILLEDWATERPUMPSPEE�TOMAINTAINAPRE-0ETERMINE� SVSTEMCMLLEDWATERFLOWSETPOIMFORTbVOCMLLERSBUTNEVERBELOW640GPM. "
<br /> ' � LEAD/LAG:
<br /> ' � THE BMS SHALL TOTALIZE THE RUNTIh1E OF EACH CHILLER AND CHILLED WATER PUMP IN A LEAD/LAG PAIR.
<br /> - �, . ' WEDNES�AYATB�.COAM(ADJ),THEUNITNlITHiHEP905TRUNTIMESIi4LLBEREASSIGNEDASTHELAGUNIT.
<br /> ' . ' DURINGTHEWEEKLYCHANGEOVER, IFONEUNITISOPER4TING, THCNTHENEWLEADUNITSHALLSTARTANDRAMPUPSLOWLYUNTIUTSSPEE� MATCHESTHEOLD
<br /> UNIT.ONCE 60TH UNITS HAVE BEEN CONFIRMED AS OPERATIOYAL, ?HE OLD LEAD UNIT SHALL RAMP DOWN.
<br /> � . IFATANYTIMETHELEADl1NITFNILS,ANAlARMSHALLBEINITIATED,THELEA� UNITSHALLBELOCKEDOUTANDTHELAGUNITSHALLSTART.
<br /> ... .. __. . . . . . _ _ . .. ...... _. .. .,._ ! . .
<br /> �' � SVSTEM STOP:
<br /> ' � - -- � - � �� � � � - � OPERATORCOMMANDATTHEBMSORAUTOMATICALLVBVTHEBMSBASEDONAPREPROGRAMMEDSCHEDULE.
<br /> " � � . WHENTHESVSTEMISCALLEDTOSTOP,THESVSTEIASHALLREVeRTTOTNAT "OFF"STATE. �
<br /> 1 .
<br /> � SAFETIES:
<br /> � PUMP OR CHILLER FAILS TO START.
<br /> ; � . . � .� LOWORNOFLOWINOPERATINGCHILLER.
<br /> �. �� � CHILLERALARM.
<br /> � {, , � PUMPVARIABLEFRE�UENCVDRNEALARM.
<br /> ;
<br /> MODIFIEO SE�UENCE OF OPERATION �CONDENSER WATER SYSTEM
<br /> � . . SYSTEMOFF.
<br /> COOLING TOWER FANS ANO FlLTER SYSTEM PUMP OFF. .
<br /> � , COOLINGTOWERISOLATOINVALVESCLOSED.
<br /> 4 SYSTEM START-
<br /> '� � ' AUTOMATICALLVBYTHEBM58ASEDONPREPROGRAMMEDSCHEDULE.
<br /> � � AUTOMATICALLVWHENTHEREISDEMANDFORCON�ENSERWATERFROMCHILLERSVSTEM.
<br /> �� ' � � - � : OPERATOR ENTEREOCOMMANDATTHEBMS.
<br /> f
<br /> . i SVSTEMOPERATION: seal/signature
<br /> CONDENSER WATER PUMPS:WHEN ENABLEO, A CONDENSER WATER PUMP FOR EACH CHILLER WILL 8E STARTE�. IF TH'e PUMP STATUS �OES NOT MATCH THE
<br /> �� . COMMAN�, AN ALARM WILL BE GENERHTED AND THE PUMP WILL BE STOPPED. UPON LOSS OF STATUS, THE PUMP WILL RESTPRTAFTER THE SVSTEM IS ACTIVATED. ��,�� ' n
<br /> . '�, � AFTERTHECHLLERISCOMMANDEDOFF,THEPl1MPWILLWMINUETORUNFORASHORTTIMET0�I551PATETHEHEAT. S°� - � ��� ��Cp ,y
<br /> I . �. COOLINGTOWEROPERATION', THECOOLINGTOWERISOLATIONVA6VESOPEN, THECOOLINGTOWERFANSSHALLBESTAGEDFROh70FFWFULLSPEEDINUNISON, o .
<br /> � � � � FANSOFEACHOFiWOCELLSRUNATSAMESPEE�TOMAINTAINTHECONDENSERWATERSUPPLYSETP0INTOF80DEGF(ADJ). '
<br /> �- ' � � ' � � � . CONDENSERWATERWATERFlLTERUNIT: THEN'ATERFILTERUNITSHALLOPERATEWHENEVERACON�ENSERWATERPl1MPOPERATES. �� -
<br /> .�r.
<br /> �
<br /> � � , ',. . � � LEA�/IAG. �i� a .isrcaey ",.
<br /> • ' '�. " '' '. � � � ��� � THE BMS SHALL TOTALIZE THE RUNTIME OF CON�ENSER WATER PUMP IN A LEAD4AG PAIR. ssJ�, �G
<br /> •
<br /> �. �'� ., .. . � . . . . ��'� SAMESEQUENCESASTHATOFCHILLEDVJAiERSVSTEMAPPLY.
<br /> :, ; : . �; � . . , .� � SYST[M STOP'. �
<br /> ��. ; . ._ : ; $.�, ._ _ . . . OPERATORCOMMANDATTHEBMSORAUTOMATICALLYBYTHEBMSBASE�ONAPREPROGRAMMEDSCHE�ULE �SSUEtlfOf date
<br /> � , � WHENTHESYSTEMISCALLCOTOSTOP,TH[SVETE�4EHALLREVERTTOTHAT "OFPSTATE. CONSTRUCTION
<br /> 2p - � ; 2p g . SAFE7IES DOCUMENTS 5/4/2018
<br /> ! COOLINGTOWERVIBR.4TIONALARM: EACHCOOLMGTOWERSHALLBESUPPLIEDWITHAFANVIBRATIONSWITCH. THESWITCHSHALLBEWIREDTOALARPAATTHEBMS .
<br /> , � j THATTHEPOSSI9ILITYOFICEBIIILDUPONTHEC00LINGTOWERHASOCCURRE�. ifem daie _
<br /> ' . � � � � � ' CONOENS.RWATERFREEZEAtARM�. IFTHECON7B:SERWhTER5l1M' TEA�FERATUREFALLST038°F,ANALARMATTHEBhti !6'�ICATMGLOhVTEM11?ERATURESHALL
<br /> i
<br /> � NOTIFY THE OPEFiATOR THAT i HE FOLLCWING S'cQUE4CE HAS CINAA4ENCE�. SUMP HEATING ELEMENTS SHALL 8F ACTIV?TED.
<br /> �. � :� � COOLINGiON�ERFANVARIABLEFRF�UEIJCYDRIVEALARM. _
<br /> i — _
<br /> ; � DDC POIPVTS MATR(X-CHILLED W,4TER A/JQ CONDENSEFt V✓ATCR SYSTEM --
<br /> I ' LL
<br /> � w
<br /> W _ W N
<br /> 2 W < C1 U _
<br /> — G Q S
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<br /> . ` � � n o � �' 3 s � t; u r car��v.ev�s — ---- - - ----
<br /> � CNILLED IkNER O�STRBUTION � ODC POINTS '
<br /> __ '.._.�....,_ . . _ . ... .. . ._ . . , . . . .. . ."'_ ". .. ... _. .
<br /> � CNiLLtUVlHICRPUMVP-0SiFRTISiGi' SS % ' X X k Y. % X HqHOWII.EONLY _ - �
<br /> _'—_"_—
<br /> CHILLE✓WAiEft PU\1P P1 SPEEO CGMrAAND S X % % X HAftOWIRE ONLY
<br /> � � CH Lf_DWFIEHFU� p: tALARM A X % X X % G01hUNICATICNINT6RFP f- OP IONAL._
<br /> H Lfp ✓JhT F Pl R i R[ f RPM11 % X X X C� iM14 WCATI�I I IRTFF`�AGF O TIONI:(
<br /> 7
<br /> �F' .�EG �11T P P �4"�' t A1 P6 AC6 AP�P � X X X X C� 1A U.dii 1T n J �IiE_ t J � .kl
<br /> � nR,-,�TOP SS F :c __ ' --
<br /> i.ELrH[..hr,. F x % x, r X .GrJI".� O �L• .
<br /> _ _—— — ._____.__ ..
<br /> F '!J Rt A f41 L�Uut 1 F �-? � rE COi..PntJU S X I X X % IIA- DV� !PFO �
<br /> SS g5 � = 1.EC YA fNLU,trt PP��R�,1 � A X k X X X ( :hJ .l � � INTbf,PPC O IOIJf.L
<br /> 5 P! �A 5
<br /> 041t1.EC 'e'JT�TC-f: PUFAPn.yppM RPM X X X X GO!-1PT,U"JICAiI�NIMERFnCEOf•CIONAL.
<br /> CHJJ.EOWATERPU1.1rP1AMPFRAGE AMP % X X X X CCh'�IUNICATIONINTEftFACEOPTIONAL
<br /> COO.IkGTGPIEFGeLLiVI6RAlIOfISJJIiCMALARM1I A % X X� %
<br /> � L'-Y.ISII�:GVFI] FORTON/ERCELLiSPEEDCOMMA4D 5 X % X X HAkO:YIREONLY �
<br /> E%ISTING VFD FON TONIEK CEIL 1 ALARM A X % % X X GOMM1tt1NICAiION INTERFACE OPTIONAL �
<br /> _.._..._...__..._._.. .._._.._.. . ._ . . _ .� ._. .. . . .. . . .._._..�... ._ _. __ . . ... . . . ...._ . ,_._.__._.._. .. :i. .__,..._... . .. . _ . ._.. _. . . .. _ ._... ... �_ .
<br /> - � FXISTINGVFDFORTOWERCELLIRPRI ftPM X % X � % GOMIAUNIGATiOPlIMERFACEOPTIONAt.
<br /> COOLINGTOWENCELL2VIBRATIONSWITCHALARR4 A X X X X
<br /> NEVYVARIABLESPEED NEWVARIABLESPEED ExISTINGVFDFO:ti'OWEP. LELL2SPEE� COM!dAF:o S x x X X. IiARD4ViREGNLY
<br /> oaivE oR�vE C!i}' Or E��ERCT i
<br /> EXIS'IfJG VF� FOR TOi4'[R CELl2 ALARM A % X % % X COMIdLMICATION INTERFAGE QPT10N41
<br /> G%ISiRJGVFpFOHTOWEPCELL2RPA9 RPM % % % X WMMUNIGAIIOtlINTERFAGEOPTI01<AL REVIE'v"V[DFORp�{�f�,�11' -
<br /> CHII.IFDVJATERfLOViP4FTFR F X X X %
<br /> BASEMENT f.NILLFRGH-iCH4.�FON1nTEft1^:oLATIGNVAWE 2P X X X
<br /> CHILL[RCH-2ClIIL�BDWP.T[RISOLATION4ALVE 2P % A X _ ShZEl1�IIB
<br /> ��;,oE�,��R »,�,,_�� �;�,���o�, ,,���-�. — zP x X x -- NIECHANICAL
<br /> CO."��].Po59R 4VAiER ISCLAiION YAI.V� 2P X % X
<br /> fONqFN FF V ATFR I5�1 � .)M NVLVE RF X % X
<br /> ��>��.F�� FF , ��.� ,� , ^ �tiv^� �-E �� � x x x CONTROL DIAGRAfVIS
<br /> i. h!L S6`POI�TS FROGRA"dt.'F� INTO THE SVSTEUl.YJSi 8E TREN.0 CAPARLE, OVERR�OECAPARI P A4I15HOWN O"1 (;RAAfiIC!;. � /�
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<br /> � CHILLED WATER AND CONDENSER WATER SYSTEM.DIAGRAM (MODIFIED)
<br /> --_ ______ . —
<br /> ___ - '
<br /> NTS sheet number
<br /> CORRECTED COLUMN GRID LOCATIONS � �
<br /> drawn bv Author checked bv Checker
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