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. <br /> I k, ,. <br /> SEQUENCE OF OPERATIONS.___. POINTS LIST , <br /> GENERAL SYSTBI DUCT VAVVBOXICO�ND WIPPFEDWITH AA MOINATR+G DARER ON EACH VAV TERMINAL UNITHOT AND COLD DECK SUPPLY. <br /> .' } I <br /> POINT DESCRIPTOR PgMTYPE REMARKS H,,a+gb <br /> ALL SETPOSATS.THE SETTINGS AND OTHER VALUES SHALL BE OPERATOR ADJUSTABLE -- ....__"_ x V'"ih <br /> UNLESS IWICATEDOITERWSSE DI AI I DO I AD 1 W <br /> THE DDC SYSTEM SHMLHAVE DIRECTTRENDINGCAPA9ILRY FOR ALL POINTS WRFBN VAVAIRFLOW X ! HOTOECKMALDDELK <br /> ii design collaborative <br /> NEM .. .. -..._.._.__ ..._.._.... __.....____-. 617west.,Avenue <br /> DISPLAY DATA DARER CONTROL X 1 HOT DECKAXILDDECK <br /> SUPPLY HR TEMPERATURE(SAT) X I DISCHARGE TEMP 1 Tet'A694J9746 <br /> GRAPHICALLY DISPLAY THE SYSTEM DESCRIBED IN THIS DOCUMENT AND SHOWN ON .._......__....__.,._..._____.._._...._...._......._......_,.....____..-._L__.L_....__.._._.__._....—__..__ vMy,. ,cem <br /> THE DESIGN DRAWINGS.INCLUDE ALL POINTS LISTED ON THE POINTS UST.REFERENCE SPACE TELPERAUUE X _ I : <br /> THE CONTROL DIAGRAM FOR SENSOR LOCATION AROSYSTEMI LAYOUT. _ ----- -_ _ • <br /> — <br /> LOW ADELOW X <br /> RUN MORE <br /> WHEN THE DEC SYSTEM ENABLES THE DDVAV SYSTEM,OR RECEIVES NOTICE(VIA THE AIRFLOW SENSOR CALRRATION i X c <br /> �' <br /> CENTRAL AAUCONTROL SYSTEMIOCATED ELSEWHERE)THAT THE CENTRA.AR LOW USCFHRGEAR TEMPERATUREI X <br /> HANDLER 19ACTWATED,THE DDVAV TERMINAL MSS/ELL LL SIROKETHE DDVAV ENGINEERS <br /> DAMPERS TO50%(OMI MEAL SETTING.THE HOT AND COLD DECK DA.EER9 SHALL L...._. DAMPER X SaAl4l/S�e/IBeWnwn <br /> THEN MODULATE TOWINTAIN SPACE TEMPERATURE BASED ON ZONE TEMPERATURE .___— ....._.. - —�. .P0,,MgislcarArgeip:ena <br /> SENSOR. ZONE TEY.PERATUREAIARLA ! j X .... <br /> OFF MODE OVERRIDE (SPACE SENSOR) X _T <br /> I .... ... ._._ <br /> WHEN THE DOC SYSTEM HEXER A DDVAV TERMINAL UNIT TOT:FFMCOP,THE DDVAV '_.._ .t 1 I .. __ ,en E. br <br /> DAMPERS SHALL mow AFTER A ONE(1)MINUTE DELAY.THE DOC SYSTEM SHALL OCCUPANCY OVERRIDE X ` �, <br /> RECEIVE PROOF OF CENTRAAIU SHUTDOWN BEFORE INDEXING VAVTERMINA UNITS - �-'-- — I1`-` M ' n <br /> TOOFFMODE. NEAT REQUEST X .._ , ,�'l�' r- r <br /> TEMPERATURE CONTROL COOL REQUEST X '' ID 0 <br /> ,, <br /> TEMPERATURE SETPONTSSHALL BE SET WITMNTHE DOCSYSTEM(USER ADJ.).LOCAL PaAMI 1 <br /> +5R <br /> ZONE TEMPERATURE CONTROL IS NOT ALLOWED UNLESS NOTED OTHERWISE. <br /> a).la <br /> EACH SPACE TEMPERATURE SENSOR SHALL RESET THE BOX DISCHARGE <br /> TEMPERATURE TO MONTAM THE INDIVIDUAL SPACE SET POINT PER THE FOLLOWING y <br /> SCHEDULE: IY 5! <br /> SPACE TEMPERATURE PF) SYSTEM RESPONSE SYSTEM STATUS 3 �,i i <br /> 75 MAXDAMPER/ FULL COOLING fig'1 g <br /> Tp� " <br /> MINIMUM VALVE <br /> I ddd <br /> 70 - HIGH DEAD&NA LIMIT. <br /> • <br /> ENABIE COOLING MODE • <br /> 72 MAINTAIN EXISTING SETPOINT ACHIEVED. a <br /> MAINTAIN POYTION. S: <br /> TT 4. LOW DEADBAND LIMIT. • i <br /> ENABLE HEATING MOOE <br /> 70 MINMWM DAMPER/ FULL MATING <br /> MAX VALVE. 1 <br /> WHEN THE CALL FOR COOLING INCREASES.THE DEC SYSTEMSHALLMODUATE OPEN I . <br /> THE DDVAV BOX COD DECK AR DAMPER.AS PE CALL FOR COOING DROPS.THE DDC • <br /> SHALL MODULATE CLOSE TIE DDVAV BOX COLD DECK AIR DAMPER ASTNE COLD DECK <br /> AIR DAMPER REACHES/SEWMMAEYING AND THERE IS A CONTINUED DRCP IN <br /> TEMPERATURE IA CALL FOR HEATING),THE DOC SYSTEM SHALL E HOT <br /> DECK DAMPER TO MAINTAIN THE SPACE TEMPERATURE SETPOIINT.HEATNA OPERATION <br /> IS THE INVERSE OF THIS SEQUENCE. <br /> IZ ROOM SEN80RWITH OCCUPANCY OVERRIDE <br /> ffi OVERRIDE SWITCH ON ASSOCIATED HEMOSTAT(IF EQUIPPED)SHALL ALLOW THE <br /> ZONE TO BECOME OCCUPIED FOR 3 HOURS(AWL ME OVER WOE SWITCH WILL ENABLE <br /> F. THE AS40CWTED ZONE WVAVTERMINAL UNITS.6 TIE CENTRE.AFNU S OFF.THE 3 <br /> il DDVAV DAMPERS SHAM.REMAIN CLOSED.TEMPERTLRE SETPOINTS SHALL BE THAT OF <br /> OCCUREDMODE. Z <br /> O <br /> CONTROL NIROL W I- <br /> THE DOC SYSTEM SHALL HAVE TIE CAPABILRY OF ADJUSTING SETPoMiS TO REDUCE <br /> DEMAND PER THE URIBY COMPANIES DEMAND PERIOD. W <br /> DUGNOSRC FAULTSAIANDALARMS Q.ljj J <br /> LL ANNUNCIATEARIISAT THE DDC SYSTEMS FRONT-END COMPUTER WHEN ANY OF THE O <br /> FOLLOWING EVENTS OCCUR.CREATE SEPARATE POINTS FOR EACH ALARM LISTED I' <br /> F <br /> ei BELOW. 11 a 1 O Z <br /> § I) LOW AIRFLOW WHEN THE DDVAV TERMINAL%ITAIRFLOWIS LESS THAN 4 lL Q <br /> SU%OFSEIPOINTFOR FIVE(5)MINUTES. Z a. <br /> • • <br /> `reU! 2) AIRFLOW SENSOR CALSRATION:WHENAIRFLOW SEHSORIAICAIESA • C5 LU <br /> 2�$ VALUE OVERRAN ZERO WHEN THE AHU IS • <br /> • <br /> "' 3) LOW DISCHARGE TEMPERATURE:EREMITE HEATING IS H00X ENABLED BUT d g <br /> 6 9! THE DISCHARGE DDVAV TEMPERATURE S BELOWSETPONL 1 Li) <br /> 4) LEAKING DAMPERWHENTTE AIRFLOW SENSOR INDICATES AIR FLOW AND THE <br /> DAMPER S CLOSED. <br /> THE <br /> 5) ZONE.TEMPERATURE ALARM:WHEN THE SPACE TEMPERATURE CONVECTED j <br /> TO E 00POINTCD AGES,DVAV TERMINAL AL UNIT E PERT D TO TPOINT. <br /> WHEN SYSTEM <br /> n A 7 O/� <br /> XL SPACESTSTABILIZE <br /> CHANGES,ATTNEFRE PARAMETER <br /> PERIOD ALLOW CONDI '`Y,I "I <br /> T09TABILSE BEFORE EVALUATINOTHE PARAMETER FORANALARM CONDITION <br /> CONSTRUCTION DOCUMENTS Sheet ems:22'x 361 <br />