Engineering Manual o.. - HVAC.Amickracing

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GENERAL ENGINEERING DATASeries 40Controller 96Operation 97Series 60Actuators 99, 102Controller 99Floating Control Circuits 102Floating Operation 102Two-Position Control Circuits 99Two-Position Operation 100Series 80Control Circuits 98Controller 98Operation 98Series 90Actuator 103Bridge Circuit 104Control Circuits 103Controllers 103Minimum Positioning 109Operation 104Switching Circuits 108Transfer Circuits 108Series Fan ATU 380Setpoint 10, 18, 58, 115Short cycling 10Shut-off 403Sick building syndrome 142Signal Amplifier 61Single-Duct VAV ATU 376Single-Pressure Reducing Valve 67Single-seated valve 405Sizing 411, 415Sling Psychrometer 39Smoke control 266Smoke Management Fundamentals 160Acceptance testing 169Causes of smoke movementBuoyancy 163Expansion 164<strong>HVAC</strong> 165Stack effect 163Wind velocity 164Control of malls, atria, and large areas 169Control of smokeAirflow 166Pressurization 165Objectives 161Codes and standards 162General 161Layout of system 162Purging 166Stairwell pressurization control 168Zone pressurization control 167Snap Acting Relay 76SoftwareApplication 125, 129Building Management 134Direct Digital Control 129Operating 125, 129Solenoid Brake 93, 96, 97Solenoid Valve 122Specific Volume 40Spring Range 72Stack effect 252Starters 110Static head 273SteamHeating Devices 349Pressure, Temperature, and Density 344Properties 343Quality 344SystemObjectives 343Steam CoilLow Temperature Protection 351PerformanceModulating 349System Design Considerations 350Steam Distribution Systems 345Steam Distribution Systems And Control 343Steam Jet Humidifier 47Steam Piping Mains 345Steam System Heat Characteristics 344Steam SystemsAdvantages 343Steam Traps 345Steam ValveControl 101Sizing 415Step control 10Step Controller 22Electric 110Storage Converters 355Strain Gage 121SubstationsDirect Heat Transfer 361Hybrid Heat Transfer 364Indirect Heat Transfer 363Summer/Winter Changeover Control 101Superheat 273, 274Supply AirAir Leaving an Air Handling System 58Supply and Return Main Pressures 350Surface Integration 183Surge 273SwitchPneumaticPneumatic <strong>Manual</strong> Positioning 82Pneumatic Potentiometer 79Pneumatic Switch 81Switching Relay 75Symbols 273ENGINEERING MANUAL OF AUTOMATIC CONTROL 470
GENERAL ENGINEERING DATASystem ApplicationElectronic 124System Configurations 173System Initialization Programming 135System Integration 183System-LevelController 125, 128, 138, 172, 174Controller Functions 176TTemperatureDew-Point 39Dry-Bulb 39Wet-Bulb 40Temperature Controller 69Temperature ControllersElectronic 122Temperature SensorElectronic 116Terminal UnitsControl 342Thermal StorageControl Modes 292Control 292Thermistor 118Thermocouple 118ThermostatPneumatic 58Dual Temperature 67Dual-Acting 67High Capacity, Single Temperature 67Low-Capacity, Single Temperature 67Three-way Valve 405, 410Throttling Range 10, 25, 58, 115Throttling Range Adjustment 62Throttling VAV ATU 376Time and Event Programs 134Time constant 10Time Proportioning 22, 98Timed two-position control 21Torque Conversion Multipliers 448Total and static pressure sensors 259Total Heat 40Tower Free Cooling, Dual Chillers 302Toxicity 142Transducer 36Electronic 115, 122, 123Electronic-to-Pneumatic 123Transformer 95Transmission 12TransmitterElectronic 115, 119, 121Turndown 403Twisted Copper Pair 175Two-Pipe Steam Systems 347Two-Position Control 10, 20, 101Electric 103Two-Pressure Reducing Valve 67Two-Way Valve 405, 408UUnbalanced loading 273Unit Heater 13, 385Control 97, 386Modulating 386Two-Position 386Down-Blow 386Gas Fired 387Oil Fired 387Unit Ventilators 13, 387ASHRAE Control Cycles 388Blow-through 387Control 388Day/Night Setback 390Digital 391Draw-through 388Unitary Equipment Control 384Universal ControllersElectronic 122VValve 73Ball 404, 407Body rating 404Butterfly 405, 407Components 402Diverting 411Double-seated 405Equal Percentage 409Expansion 274Globe 405, 407Linear 409Material And Media 406MaximumPressure 404Temperature 404Mixing 410Pilot-operated 405Quick-Opening 408Ratings 403Reduced-Port 405Selection 406Single-seated 405Sizing 411, 415SteamSizing 415Three-way 405Two-way 405, 408Types 404WaterSizing 411ENGINEERING MANUAL OF AUTOMATIC CONTROL 471
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ENGINEERING MANUAL ofAUTOMATICCONTR
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Copyright 1934, 1940, 1953, 1988, 1
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PREFACEThe purpose of this manual i
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CONTROL FUNDAMENTALSElectronic Cont
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CONTROL FUNDAMENTALSDeviation—The
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CONTROL FUNDAMENTALSHVAC SYSTEM CHA
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CONTROL FUNDAMENTALSInfiltration is
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CONTROL FUNDAMENTALSROTATINGGRANULA
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CONTROL FUNDAMENTALS-PATHOFIONSAIRF
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CONTROL FUNDAMENTALSOPENFINALCONTRO
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CONTROL FUNDAMENTALSTIME PROPORTION
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CONTROL FUNDAMENTALSON“CLOSE”SW
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CONTROL FUNDAMENTALSOUTDOOR AIRTEMP
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CONTROL FUNDAMENTALSPROPORTIONAL-IN
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CONTROL FUNDAMENTALSCONTROLLERVALVE
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CONTROL FUNDAMENTALSIn terms of hea
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CONTROL FUNDAMENTALSFLAPPERSPRINGSI
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CONTROL FUNDAMENTALSimpact of the j
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CONTROL FUNDAMENTALSCHARACTERISTICS
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PSYCHROMETRIC CHART FUNDAMENTALSWAT
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PSYCHROMETRIC CHART FUNDAMENTALShea
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PSYCHROMETRIC CHART FUNDAMENTALS19.
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PSYCHROMETRIC CHART FUNDAMENTALS0°
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PSYCHROMETRIC CHART FUNDAMENTALSREF
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PSYCHROMETRIC CHART FUNDAMENTALSThi
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PSYCHROMETRIC CHART FUNDAMENTALSCOO
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PSYCHROMETRIC CHART FUNDAMENTALS90
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PSYCHROMETRIC CHART FUNDAMENTALSFig
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PNEUMATIC CONTROL FUNDAMENTALSMain
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PNEUMATIC CONTROL FUNDAMENTALSFrom
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PNEUMATIC CONTROL FUNDAMENTALSA tem
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PNEUMATIC CONTROL FUNDAMENTALSSome
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PNEUMATIC CONTROL FUNDAMENTALSPRESS
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PNEUMATIC CONTROL FUNDAMENTALSnozzl
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PNEUMATIC CONTROL FUNDAMENTALSSENSO
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PNEUMATIC CONTROL FUNDAMENTALSFigur
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PNEUMATIC CONTROL FUNDAMENTALSBRANC
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PNEUMATIC CONTROL FUNDAMENTALSMROOM
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PNEUMATIC CONTROL FUNDAMENTALSCAPAC
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PNEUMATIC CONTROL FUNDAMENTALSHESIT
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PNEUMATIC CONTROL FUNDAMENTALSM13MD
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PNEUMATIC CONTROL FUNDAMENTALSLow-l
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PNEUMATIC CONTROL FUNDAMENTALSPNEUM
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PNEUMATIC CONTROL FUNDAMENTALSPNEUM
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PNEUMATIC CONTROL FUNDAMENTALSSUPPL
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PNEUMATIC CONTROL FUNDAMENTALSDISCH
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ELECTRIC CONTROL FUNDAMENTALSLOW-VO
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ELECTRIC CONTROL FUNDAMENTALSSERIES
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ELECTRIC CONTROL FUNDAMENTALSLOW-LI
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ELECTRIC CONTROL FUNDAMENTALSCONTRO
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ELECTRIC CONTROL FUNDAMENTALSSERIES
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ELECTRIC CONTROL FUNDAMENTALSOPERAT
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ELECTRIC CONTROL FUNDAMENTALSBRIDGE
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ELECTRIC CONTROL FUNDAMENTALSTWO-PO
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ELECTRIC CONTROL FUNDAMENTALSA 135-
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ELECTRIC CONTROL FUNDAMENTALSMOMENT
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ELECTRONIC CONTROL FUNDAMENTALSINTR
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ELECTRONIC CONTROL FUNDAMENTALSTYPI
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ELECTRONIC CONTROL FUNDAMENTALSAnot
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ELECTRONIC CONTROL FUNDAMENTALSWIRE
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ELECTRONIC CONTROL FUNDAMENTALSTemp
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ELECTRONIC CONTROL FUNDAMENTALSTYPI
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MICROPROCESSOR-BASED/DDC FUNDAMENTA
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INDOOR AIR QUALITY FUNDAMENTALSINTR
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INDOOR AIR QUALITY FUNDAMENTALSRado
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INDOOR AIR QUALITY FUNDAMENTALSTabl
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INDOOR AIR QUALITY FUNDAMENTALSHEAL
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INDOOR AIR QUALITY FUNDAMENTALSPass
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INDOOR AIR QUALITY FUNDAMENTALSThis
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INDOOR AIR QUALITY FUNDAMENTALSEnvi
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INDOOR AIR QUALITY FUNDAMENTALSFLOW
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INDOOR AIR QUALITY FUNDAMENTALSROOF
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INDOOR AIR QUALITY FUNDAMENTALSFigu
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SMOKE MANAGEMENT FUNDAMENTALSINTROD
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SMOKE MANAGEMENT FUNDAMENTALSAny al
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SMOKE MANAGEMENT FUNDAMENTALSThe bu
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SMOKE MANAGEMENT FUNDAMENTALSThe do
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SMOKE MANAGEMENT FUNDAMENTALSAnothe
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SMOKE MANAGEMENT FUNDAMENTALSBIBLIO
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BUILDING MANAGEMENT SYSTEM FUNDAMEN
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AIR HANDLING SYSTEM CONTROL APPLICA
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BUILDING AIRFLOW SYSTEM CONTROL APP
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CHILLER, BOILER, AND DISTRIBUTION S
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INDIVIDUAL ROOM CONTROL APPLICATION
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VALVE SELECTION AND SIZINGVALVE SEL
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LINE PRESSURE IN PSIVALVE SELECTION
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VALVE SELECTION AND SIZINGVALVE MAT
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VALVE SELECTION AND SIZINGWhen butt
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VALVE SELECTION AND SIZING— Graph
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VALVE SELECTION AND SIZINGPRESSURE
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VALVE SELECTION AND SIZING3640.443.
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VALVE SELECTION AND SIZINGQUANTITY
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VALVE SELECTION AND SIZINGThe criti
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Page 440 and 441: GENERAL ENGINEERING DATAHEATING DAT
Page 442 and 443: GENERAL ENGINEERING DATACONVERSION
Page 444 and 445: GENERAL ENGINEERING DATAVOLUMEExist
Page 446 and 447: GENERAL ENGINEERING DATAHEAT TRANSF
Page 448 and 449: GENERAL ENGINEERING DATAFORCEEXAMPL
Page 450 and 451: GENERAL ENGINEERING DATATHREE-PHASE
Page 452 and 453: GENERAL ENGINEERING DATACONDUIT SIZ
Page 454 and 455: GENERAL ENGINEERING DATAVOLTAGE CON
Page 456 and 457: GENERAL ENGINEERING DATAAIRFLOW DAT
Page 458 and 459: GENERAL ENGINEERING DATAMOISTURE CO
Page 460 and 461: GENERAL ENGINEERING DATAENGINEERING
Page 462 and 463: GENERAL ENGINEERING DATAASHRAEGuide
Page 464 and 465: GENERAL ENGINEERING DATACooling Tow
Page 466 and 467: GENERAL ENGINEERING DATAFlame Safeg
Page 468 and 469: GENERAL ENGINEERING DATAOperationSe
Page 472: GENERAL ENGINEERING DATAValve Contr
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