Engineering Manual o.. - HVAC.Amickracing

More documents

Recommendations

Info

AIR HANDLING SYSTEM CONTROL APPLICATIONSYEAR-ROUND SYSTEM CONTROL PROCESSESHEATING, COOLING, AND ECONOMIZERFunctional DescriptionSPACE TEMPERATURECHILLED WATER COOLINGSETPOINT = FREE COOLINGSETPOINT PLUS101.1(0.8 MINIMUM)824.5SETPOINT24.511EA1005NC3ONRAFREE COOLINGSETPOINTHEATING SETPOINT = FREECOOLING SETPOINT MINUS12 1.1(0.8 MINIMUM)923.5SETPOINT2213OANCNO2NORMALSUPPLYFAN1SAON151514SUPPLY AIRTEMPERATURESETPOINT4113SPACEHEATINGDEMAND100001821100PERCENTOPEN420183619016SUPPLY AIRTEMPERATURESETPOINTFREECOOLINGDEMANDECONOMIZER DECISION.REFER TO PREVIOUSECONOMIZER OPTIONS7 62222CONTROLPROGRAM172414SUPPLY AIRTEMPERATURESETPOINT0100CHWCOOLINGDEMAND100OA MINIMUM SETPOINT(NOTE: THE TEST AND BALANCEINITIAL VALUE FOR PROPERVENTILATION IS 22)182413010096M15176ItemNo.Function1-3 Control system energizes when fan is turnedon (See FAN SYSTEM START-STOPCONTROL).4-6 Mixing dampers modulate to maintainminimum ventilation value and free coolingSA temperature setpoint.7 Economizer enables free cooling when OA isappropriate.8 Space temperature dictates heat and cooldemands.9-13 Free cooling setpoint and heat/cool deadbandvalues determine the SA temperaturesetpoint for hot and chilled water controlsetpoints. Software has a minimum 0.8kelvins heating and cooling deadband.14 Heat demand varies SA temperature setpoint.248ENGINEERING MANUAL OF AUTOMATIC CONTROL
AIR HANDLING SYSTEM CONTROL APPLICATIONS15,16 Hot water valve modulates to maintain SAtemperature setpoint.17 Free cooling demand varies SA temperaturesetpoint.18 Chilled water cooling demand varies SAtemperature setpoint.19 Chilled water valve modulates to maintain SAtemperature cooling setpoint.20 MA temperature sensor for operatorinformation.21 OA temperature sensor for operatorinformation.22 Control program coordinates space and supplycooling, heating, and ventilation control, andfan interlock.FEATURES1. Use of space control resetting SA temperature control addsstability. The MA sensor is required to prevent freeze-up ifthe free cooling setpoint is lowered in freezing weather.2. SA temperature is maintained only as high or low asrequired to meet space requirements.3. Free cooling cycle selection determined by theeconomizer control program to minimize load onmechanical cooling system.4. Optimum comfort temperature provided during freecooling cycle with energy conserving deadbands forheating and cooling.CONDITIONS FOR SUCCESSFUL OPERATIONThe space temperature shall have a free cooling PI loop setpointselected to provide optimum occupant comfort temperature. Thespace temperature shall have a chilled water cooling PI loopsetpoint adjustable to no lower than 0.8 kelvins (minimum) abovethe free cooling setpoint. The space temperature shall have aheating PI loop setpoint adjustable to no higher than 0.8 kelvins(minimum) below the free cooling setpoint.As the space heating load varies from 100 to 0%, an SAheating PI control loop setpoint shall vary from 41°C to 13°C.The hot water valve shall modulate to maintain the heating SAtemperature setpoint, except that anytime the space temperatureis greater than one degree above the free cooling spacetemperature setpoint, the hot water valve control PI setpointshall be 11°C.As the space free cooling load varies from 0 to 100%, an SAfree cooling PI control loop setpoint shall vary from 24°C to14°C. The mixing dampers shall modulate to maintain the freecooling SA temperature setpoint.As the space chilled water cooling load varies from 0 to 100%,an SA chilled water cooling PI control loop setpoint shall varyfrom 24°C to 13°C. The chilled water valve shall modulate tomaintain this cooling SA temperature setpoint.PSYCHROMETRIC ASPECTSIn the following chart it is assumed that:1. OA condition is 18°C and 53% RH.2. System is in the economizer mode.1. Sensor locations must be selected to measurerepresentative air conditions.2. SA temperature control loops should provide PI controlto assure stability with minimum offset.NOTE: In cold climates this unit would most often have theheating coil ahead of the cooling coil and the lowtemperature switch after the heating coil. Controlwould not change. In the configuration shown, itwould be possible to add a dehumidification cyclewith reheat (software) at a later time.COOLING COILDISCHARGE 15°C2COILCOOLINGLOAD3 SPACE24.5°C DB, 38% RH1100% OA18°C DB, 53% RHThe following results are obtained:M15177SPECIFICATIONSSee FAN SYSTEM START-STOP CONTROL.Anytime the supply fan runs, control system shall be enabled,and mixing dampers shall position to minimum ventilationposition during scheduled occupancy periods.Anytime the economizer decision program determines thatOA is suitable to assist in cooling, the temperature controlsshall be enabled to override the dampers minimum ventilationposition for free cooling as required.ItemNo.Explanation1 100% economizer air is entering the coolingcoil.2 The chilled water coil cools the entering airto its 15°C setpoint (removing little moisturebecause the water flow is low and the OAmoisture content is not high).3 Space temperature is 24.5°C and 38% RH.ENGINEERING MANUAL OF AUTOMATIC CONTROL249
Page 3:
FOREWORDThe Minneapolis Honeywell R
Page 8 and 9:
Electronic Control Fundamentals ...
Page 10 and 11:
Engineering Information ...........
Page 12 and 13:
SMOKE MANAGEMENT MANAGEMENT FUNDAME
Page 14 and 15:
CONTROL FUNDAMENTALSControl System
Page 16 and 17:
CONTROL FUNDAMENTALSDeadband: A ran
Page 18 and 19:
CONTROL FUNDAMENTALSHVAC SYSTEM CHA
Page 20:
CONTROL FUNDAMENTALSInfiltration is
Page 23 and 24:
CONTROL FUNDAMENTALSROTATINGGRANULA
Page 25 and 26:
CONTROL FUNDAMENTALS-PATHOFIONSAIRF
Page 27 and 28:
CONTROL FUNDAMENTALSOPENFINALCONTRO
Page 29 and 30:
CONTROL FUNDAMENTALSBecause the hea
Page 31 and 32:
CONTROL FUNDAMENTALSON“CLOSE”SW
Page 33 and 34:
CONTROL FUNDAMENTALSOUTDOOR AIRTEMP
Page 35 and 36:
CONTROL FUNDAMENTALSPROPORTIONAL-IN
Page 37 and 38:
CONTROL FUNDAMENTALSVALVESTEAM(CONT
Page 39 and 40:
CONTROL FUNDAMENTALSIn terms of hea
Page 41 and 42:
CONTROL FUNDAMENTALSFLAPPERSPRINGSI
Page 43 and 44:
CONTROL FUNDAMENTALSApplying the fl
Page 45 and 46:
CONTROL FUNDAMENTALSCHARACTERISTICS
Page 47 and 48:
PSYCHROMETRIC CHART FUNDAMENTALSPsy
Page 49 and 50:
PSYCHROMETRIC CHART FUNDAMENTALSWAT
Page 51 and 52:
PSYCHROMETRIC CHART FUNDAMENTALShea
Page 53 and 54:
PSYCHROMETRIC CHART FUNDAMENTALS28.
Page 55 and 56:
PSYCHROMETRIC CHART FUNDAMENTALS-18
Page 57 and 58:
PSYCHROMETRIC CHART FUNDAMENTALSREF
Page 59 and 60:
PSYCHROMETRIC CHART FUNDAMENTALSRec
Page 61 and 62:
PSYCHROMETRIC CHART FUNDAMENTALSCOO
Page 63 and 64:
PSYCHROMETRIC CHART FUNDAMENTALS32
Page 65 and 66:
PSYCHROMETRIC CHART FUNDAMENTALS∞
Page 67 and 68:
PNEUMATIC CONTROL FUNDAMENTALSPneum
Page 69 and 70:
PNEUMATIC CONTROL FUNDAMENTALSINTRO
Page 71 and 72:
PNEUMATIC CONTROL FUNDAMENTALSSYMBO
Page 73 and 74:
PNEUMATIC CONTROL FUNDAMENTALSdiaph
Page 75 and 76:
PNEUMATIC CONTROL FUNDAMENTALSconst
Page 77 and 78:
PNEUMATIC CONTROL FUNDAMENTALSCONDE
Page 79 and 80:
PNEUMATIC CONTROL FUNDAMENTALSThe o
Page 81 and 82:
PNEUMATIC CONTROL FUNDAMENTALSContr
Page 83 and 84:
PNEUMATIC CONTROL FUNDAMENTALSReset
Page 85 and 86:
PNEUMATIC CONTROL FUNDAMENTALSActua
Page 87 and 88:
PNEUMATIC CONTROL FUNDAMENTALSFigur
Page 89 and 90:
PNEUMATIC CONTROL FUNDAMENTALSHIGH-
Page 91 and 92:
PNEUMATIC CONTROL FUNDAMENTALSFigur
Page 93 and 94:
PNEUMATIC CONTROL FUNDAMENTALSMMBTE
Page 95 and 96:
PNEUMATIC CONTROL FUNDAMENTALS— T
Page 97 and 98:
PNEUMATIC CONTROL FUNDAMENTALSCHANG
Page 99 and 100:
PNEUMATIC CONTROL FUNDAMENTALSPNEUM
Page 101 and 102:
PNEUMATIC CONTROL FUNDAMENTALSAny t
Page 103 and 104:
PNEUMATIC CONTROL FUNDAMENTALSRETUR
Page 105 and 106:
ELECTRIC CONTROL FUNDAMENTALSElectr
Page 107 and 108:
ELECTRIC CONTROL FUNDAMENTALSINTROD
Page 109 and 110:
ELECTRIC CONTROL FUNDAMENTALSDamper
Page 111 and 112:
ELECTRIC CONTROL FUNDAMENTALSCONTRO
Page 113 and 114:
Page 115 and 116:
Page 117 and 118:
ELECTRIC CONTROL FUNDAMENTALSSERIES
Page 119 and 120:
Page 121 and 122:
ELECTRIC CONTROL FUNDAMENTALSWhen t
Page 123 and 124:
ELECTRIC CONTROL FUNDAMENTALSDPDTSW
Page 125 and 126:
ELECTRIC CONTROL FUNDAMENTALSOPERAT
Page 127 and 128:
Page 129 and 130:
ELECTRONIC CONTROL FUNDAMENTALSElec
Page 131 and 132:
ELECTRONIC CONTROL FUNDAMENTALSElec
Page 133 and 134:
ELECTRONIC CONTROL FUNDAMENTALSSENS
Page 135 and 136:
ELECTRONIC CONTROL FUNDAMENTALSTher
Page 137 and 138:
ELECTRONIC CONTROL FUNDAMENTALSPOLY
Page 139 and 140:
ELECTRONIC CONTROL FUNDAMENTALSELEC
Page 141 and 142:
MICROPROCESSOR-BASED/DDC FUNDAMENTA
Page 143 and 144:
Page 145 and 146:
Page 147 and 148:
Page 149 and 150:
Page 151 and 152:
Page 153 and 154:
Page 155 and 156:
Page 157 and 158:
Page 159 and 160:
INDOOR AIR QUALITY FUNDAMENTALSIndo
Page 161 and 162:
INDOOR AIR QUALITY FUNDAMENTALSINTR
Page 163 and 164:
INDOOR AIR QUALITY FUNDAMENTALSSick
Page 165 and 166:
INDOOR AIR QUALITY FUNDAMENTALSTabl
Page 167 and 168:
INDOOR AIR QUALITY FUNDAMENTALSHEAL
Page 169 and 170:
INDOOR AIR QUALITY FUNDAMENTALSActi
Page 171 and 172:
INDOOR AIR QUALITY FUNDAMENTALSVENT
Page 173 and 174:
INDOOR AIR QUALITY FUNDAMENTALSEnvi
Page 175 and 176:
INDOOR AIR QUALITY FUNDAMENTALSFLOW
Page 177 and 178:
INDOOR AIR QUALITY FUNDAMENTALSROOF
Page 179 and 180:
INDOOR AIR QUALITY FUNDAMENTALSFigu
Page 181 and 182:
SMOKE MANAGEMENT FUNDAMENTALSSmoke
Page 183 and 184:
SMOKE MANAGEMENT FUNDAMENTALSSmoke
Page 185 and 186:
SMOKE MANAGEMENT FUNDAMENTALSDESIGN
Page 187 and 188:
SMOKE MANAGEMENT FUNDAMENTALSHVACHV
Page 189 and 190:
SMOKE MANAGEMENT FUNDAMENTALSALARMD
Page 191 and 192:
SMOKE MANAGEMENT FUNDAMENTALS4. Sys
Page 193 and 194:
BUILDING MANAGEMENT SYSTEM FUNDAMEN
Page 195 and 196:
Page 197 and 198:
Page 199 and 200:
Page 201 and 202:
Page 203 and 204:
Page 205 and 206:
Page 207 and 208: BUILDING MANAGEMENT SYSTEM FUNDAMEN
Page 209 and 210: SMOKE MANAGEMENT FUNDAMENTALSCONTRO
Page 211 and 212: AIR HANDLING SYSTEM CONTROL APPLICA
Page 257: AIR HANDLING SYSTEM CONTROL APPLICA
Page 271 and 272: 05.0AIR HANDLING SYSTEM CONTROL APP
Page 273 and 274: BUILDING AIRFLOW SYSTEM CONTROL APP
Page 301 and 302: CHILLER, BOILER, AND DISTRIBUTION S
Page 309 and 310:
CHILLER, BOILER, AND DISTRIBUTION S
Page 311 and 312:
Page 313 and 314:
Page 315 and 316:
Page 317 and 318:
Page 319 and 320:
Page 321 and 322:
Page 323 and 324:
Page 325 and 326:
Page 327 and 328:
Page 329 and 330:
Page 331 and 332:
Page 333 and 334:
Page 335 and 336:
Page 337 and 338:
Page 339 and 340:
Page 341 and 342:
Page 343 and 344:
Page 345 and 346:
Page 347 and 348:
Page 349 and 350:
Page 351 and 352:
Page 353 and 354:
Page 355 and 356:
Page 357 and 358:
Page 359 and 360:
Page 361 and 362:
Page 363 and 364:
Page 365 and 366:
Page 367 and 368:
Page 369 and 370:
Page 371 and 372:
Page 373 and 374:
Page 375 and 376:
Page 377 and 378:
Page 379 and 380:
Page 381 and 382:
Page 383 and 384:
Page 385 and 386:
Page 387 and 388:
Page 389 and 390:
Page 391 and 392:
Page 393 and 394:
Page 395 and 396:
Page 397 and 398:
Page 399 and 400:
Page 401 and 402:
Page 403 and 404:
Page 405 and 406:
INDIVIDUAL ROOM CONTROL APPLICATION
Page 407 and 408:
Page 409 and 410:
Page 411 and 412:
Page 413 and 414:
Page 415 and 416:
Page 417 and 418:
Page 419 and 420:
Page 421 and 422:
Page 423 and 424:
Page 425 and 426:
Page 427 and 428:
Page 429 and 430:
Page 431 and 432:
Page 433 and 434:
Page 435 and 436:
SMOKE MANAGEMENT FUNDAMENTALSENGINE
Page 437 and 438:
VALVE SELECTION AND SIZINGValve Sel
Page 439 and 440:
VALVE SELECTION AND SIZINGQuick-ope
Page 441 and 442:
VALVE SELECTION AND SIZINGBall valv
Page 443 and 444:
VALVE SELECTION AND SIZINGGLOBE VAL
Page 445 and 446:
VALVE SELECTION AND SIZING— Graph
Page 447 and 448:
VALVE SELECTION AND SIZINGThe close
Page 449 and 450:
VALVE SELECTION AND SIZINGb. The pr
Page 451 and 452:
VALVE SELECTION AND SIZINGCASE A: 3
Page 453 and 454:
VALVE SELECTION AND SIZINGSTEAM VAL
Page 455 and 456:
DAMPER SELECTION AND SIZINGDamper S
Page 457 and 458:
DAMPER SELECTION AND SIZINGINTRODUC
Page 459 and 460:
DAMPER SELECTION AND SIZINGBLADEEDG
Page 461 and 462:
DAMPER SELECTION AND SIZINGMULTIPLE
Page 463 and 464:
DAMPER SELECTION AND SIZINGLINKAGEA
Page 465 and 466:
DAMPER SELECTION AND SIZINGtwist on
Page 467 and 468:
DAMPER SELECTION AND SIZINGJACKSHAF
Page 469 and 470:
DAMPER SELECTION AND SIZING100CHARA
Page 471 and 472:
DAMPER SELECTION AND SIZINGA damper
Page 473 and 474:
DAMPER SELECTION AND SIZINGStep1 No
Page 475 and 476:
GENERAL ENGINEERING DATAGeneral Eng
Page 477 and 478:
GENERAL ENGINEERING DATAWEIGHT/MASS
Page 479 and 480:
GENERAL ENGINEERING DATATable 8. Ce
Page 481 and 482:
GENERAL ENGINEERING DATAPOWERExisti
Page 483 and 484:
GENERAL ENGINEERING DATAELECTRICAL
Page 485 and 486:
GENERAL ENGINEERING DATAELECTRIC MO
Page 487 and 488:
GENERAL ENGINEERING DATAAIRFLOW DAT
Page 489 and 490:
GENERAL ENGINEERING DATAMOISTURE CO
Page 491 and 492:
GENERAL ENGINEERING DATARELATIVE HU
Page 493 and 494:
INDEXINDEXENGINEERING MANUAL OF AUT
Page 495 and 496:
INDEXASHRAE Psychrometric Charts 53
Page 497 and 498:
INDEXFan ControlOn-Off 317Two-Speed
Page 499 and 500:
INDEXFlame SafeguardControl 330Inst
Page 501 and 502:
INDEXOperator interface 167Optimum
Page 503 and 504:
INDEXSeries 60Actuators 103, 106Con
Page 505 and 506:
INDEXValve FlowCharacteristics 376,
Page 507 and 508:
NOTESINDEXENGINEERING MANUAL OF AUT
Page 509 and 510:
INDEXNOTESENGINEERING MANUAL OF AUT
Page 511 and 512:
INDEXNOTESENGINEERING MANUAL OF AUT
show all

Engineering Manual o.. - HVAC.Amickracing

Create successful ePaper yourself

Delete template?

Save as template?