Application Guide.pdf - Emerson Swan

FDI PRODUCT OVERVIEWDA516 Series Adjustable DifferentialPressure ControllersInline differential pressure controller is used tostabilize differential pressure across multiplecircuits within a branch, depending on the flow ratesand the piping layout. The differential pressure canbe adjusted between 1 to 15 psi.Sizes: ½” – 5” Max Differential Pressure: 230 psiRating: 360 psig@ 284°FWS Series RegulatorsAutoFlow regulator with ductile iron wafer style bodycompatible with ANSI class 150 or 300 flanges.Automatically limits to the specified flow within± 5% over 95% of the control range.Sizes: 2 ½”- 30”Max. flow ranges: 80 - 21000 gpmPSID ranges: 2-32, 5-60, 3-20, 5-40, 7-45Rating: 600 psig @ 250 °F ( 2 ½” – 14”) and 225 psig @ 250 °F(16” – 30”)CW Series Cast Iron Y-Strainer FlangedCast iron Y-body flanged strainer features a machinetapered seat which ensures a perfect fit for theremovable stainless steel screen, flanged blow-offcover, gasket and plug. HB male ended ball valvescan be used for blow-off valves.Sizes: 2 ½” – 8”Rating: 125 psi @ 350 °FBF Series Butterfly ValvesDuctile iron lug type resilient seated butterfly valveis bi-directionally designed for dead-end service.The rounded and polished disc provides minimumflow restriction and lower torque. The valve hasinfinite position handle for memory stops.Sizes: 2” – 8”Rating: 240 psi @ 250 °FTBV-C Series Terminal Balancingand Control Valves with Shut-offTBV-C valve combines control, balancing, ports forpressure and temperature measurement, steplessadjustment of Cv and shut-off valve in onedezincification resistant alloy body. TBV-C isavailable with a factory mounted on-off actuator.Sizes: ½” – ¾”Rating: 14 psi max differential pressure, 250 psig @ 250 °FRefer to www.flowdesign.com for the most current submittals,installation guides, specification guides and brochures for all ofthese Flow Design products.

Hydronic balancing - a necessity for good building control. In theory, newcontrol technologies can satisfy the most demanding requirements forindoor climate and operating costs. In practice, however, not even the most sophisticated controllers always perform as promised. As a result,comfort is compromised and operational costs are higher than expected.This is often because the mechanical design of the HVAC plant does not meetsome conditions necessary for stable and accurate control. Three importantconditions are:1. The design flow must be available at all terminals.2. The differential pressure across the control valves must not vary too much.3. Flows must be compatible at system interfaces.This application guide shows typical HVAC applications, and how they canbe designed for the perfect indoor climate with optimum energy savings.Common ProblemsThese problems are typical indications that the HVAC design for flowrequirements are not met:• Higher than expected energy costs• Installed power is not deliverable at intermediate and/or high load• Too hot in some parts of the building, too cold in other parts• Long delay before the desired room temperatures are obtainedin all rooms when starting up after night setback• Abnormal pump energy consumption• Supply air temperature or room temperature fluctuates• Noise from control valves• Maximum installed power is not deliverable when requiredCommon but incorrect countermeasures:• Increase pump head of main or secondary pump• Increase supply temperature in a heating system• Reduce supply temperature in a cooling system• Cancel night and weekend setback function• Modify control software although it is a hydronic problem• Replace correctly sized but hunting control valves withsmaller ones• Install additional production unitsCorrect solutions:• Design production, distribution and terminal system with the opportunityfor professional hydronic balancing• Balance the plant to ensure flow compatibility throughout the plant usingbalancing and differential pressure control valvesHYDRONIC BALANCING PROBLEMS – SOLUTIONS

FUNCTION OF TERMINAL CONTROLSOne important measure of hydronic design quality is the circuit characteristic.Figure 1 represents a typical hydronic circuit for an air heating/cooling coil.The circuit characteristic is the relationship between the control signal and theresulting thermal power from the coil. It determines the controllability of thesystem. The circuit characteristic is a result of the combined characteristics ofthe control valve (actuator/valve), terminal (thermal emission characteristics)and hydronic conditions (valve authority β).Normally the control valve characteristics (EQM) are chosen opposite tothe terminal characteristics in order to linearize the circuit characteristics.The hydronic conditions in the system cause the pressure to change anddistort the circuit characteristics.See Figure 1 below.SignalC vPowerFig 1.FlowPower (BTUH)LiftC vFlowβ = 0.6PowerSignal Lift Cv FlowSignal

DESIGN AND MINIMUM VALVE AUTHORITYThe available differential pressure across the hydronic circuit is transferredto the control valve once it shuts, which means that size, design and controlof the system determine the differential pressure across the control valvewhen fully shut. β design=ΔH design=Valve authority at design condition[-]Available differential pressureacross circuit at design condition[psi]β min= Minimum valve authority [-]ΔH max=Maximum differentialpressure across circuitduring operation [psi]In order to prevent the valve authority from distorting the circuit characteristictoo much, the lowest values of design and minimum authority are:To achieve this design and minimum authority, all control valvesshould have differential pressure stabilization if the pump headis bigger than four (4) times the pressure drop in the control valve(if H ≥ 4 x Δp ATC).The following pages show sevendifferent applications. Ourrecommendations to reach optimumbalancing for good control is ratedwith stars (★) based on performancevs. cost ratio.★★★ = Best Solution Best opportunities for enhancedcontrollability and energy savings★★ = Better SolutionOffers good controllability withsome first cost reduction★ = Good Solution

AIR HANDLING UNITSAIR HANDLING UNIT SOLUTION 1A| ★★★10OutdoorairHeatHeatCoolCoolSupplyairUP - UNIONWITH MANUAL AIR VENTUB - UNIBODY SHUT-OFFVALVE WITH HOSE ENDADAPTERFA - ACCESSORYFLANGEKTM - FLANGEDPRESSURE INDEPENDENTCONTROL VALVEWITH P/T PORT ANDFDI ACTUATORYC - COMBINATION BALLVALVE Y/STRAINER WITHUNION, P/T PORT, HOSEEND DRAIN, CAP ANDRETAINER STRAPCW - STRAINERWITH P/T PORTFDIACTUATORFF - ACCESSORYFLANGED X FLANGEDWITH P/T PORTKTM - PRESSURE INDEPENDENTCONTROL VALVE WITH P/T PORTAND FDI ACTUATORBF - BUTTERFLYVALVEBF - BUTTERFLYVALVEUB - UNIBODY SHUT-OFFVALVE WITH UNIONAND P/T PORT

OutdoorairHeatHeatCoolCoolSupplyairUP - UNIONWITH 1/4” TEE, BUSHINGMANUAL AIR VENTAND P/T PORTFA - ACCESSORYFLANGEVF - FLANGED STEEL VENTURIWITH 1/4” TEE, BUSHING,MANUAL AIR VENTAND EXT. P/T PORTSYC - COMBINATION BALLVALVE Y/STRAINER WITHUNION, P/T PORT, HOSEEND DRAIN, CAP ANDRETAINER STRAPATCUB - UNIBODYSHUT-OFF VALVEWITH HOSE ENDADAPTERCW - STRAINERWITH P/T PORTATCBF - BUTTERFLYVALVETOP VIEWDA - DIFFERENTIALPRESSURE CONTROLLERWITH P/T PORTFF - ACCESSORYWITH P/T PORT(FLG’D X FLG’D)BF - BUTTERFLYVALVEDA - FLANGEDDIFFERENTIALPRESSURECONTROLLERUA - UNIBODY MANUAL VENTURIBALANCING VALVE WITHP/T PORTS, MANUAL AIR VENTAND MEMORY STOPAIR HANDLING UNIT SOLUTION 1B| ★★★11

AIR HANDLING UNIT SOLUTION 2A| ★★12OutdoorairHeatHeatCoolCoolSupplyairUP - UNIONWITH MANUAL AIR VENTAND P/T PORTSFA - ACCESSORYFLANGEFA - ACCESSORYFLANGE MANUAL AIR VENTAND P/T PORTYC - COMBINATION BALLVALVE Y/STRAINER WITHUNION, P/T PORT, HOSEEND DRAIN, CAP ANDRETAINER STRAPATCCW - STRAINERWITH P/T PORTWS - FLANGEDAUTOFLOWREGULATORWITH P/T PORTSATCBF - BUTTERFLYVALVEBF - BUTTERFLYVALVEAC - AUTOFLOW VALVEWITH UNION AND P/T PORTS

FCUFan Coil UnitsA fan coil unit (FCU) is a small ventilator unit containingcooling and/or heating coils, a fan, and possibly somedampers. It typically serves a single room or a few smallrooms. Airflow is often from outdoors, which will beheated or cooled to desired temperature.Because of the small load that these units typicallyserve, water flow to the coils is normally controlledwith an ON/OFF ATC, which works extremely wellwith a flow limiting valve such as AutoFlow at eachterminal. Alternatively, FCUs are often close enoughtogether to allow a single pressure controller (Ref. DA)to serve several units with manual balancing betweenindividual terminals.Balancing options:Rating1. Flow limiting on each terminala. ATC + AutoFlow ★★★2. Combination terminal unit valve +shared Dp controllera. TBV-C + DA ★★b. ATC + Manual valve + DA ★3. Pressure stabilization – (modulating ATC)a. KTM ★FAN COIL UNIT OVERVIEW13FAN COIL UNITS

FAN COIL UNITSFAN COIL UNIT SOLUTION 1A| ★★★14AC - AUTOFLOW VALVEWITH UNION AND P/T PORTSATCUP - UNIONWITH MANUAL AIR VENTAND P/T PORTSYC - COMBINATION BALL VALVE,Y-STRAINER WITH UNION, P/T PORT,HOSE END DRAIN, CAPAND RETAINER STRAPFCU

YC - COMBINATION BALL VALVE,Y-STRAINER WITH UNION, P/T PORT,HOSE END DRAIN, CAPAND RETAINER STRAPTBV-C - COMBINATION TERMINAL VALVE,ON/OFF CONTROL, MANUAL BALANCING,P/T PORTS, SHUT-OFF AND WITH FDI ACTUATORUP - UNIONWITH MANUAL AIR VENTS2 - STAINLESS STEELBRAIDED HOSEFCUS2 - STAINLESS STEELBRAIDED HOSEDA - DIFFERENTIALPRESSURECONTROLLERWITH P/T PORTUB - UNIBODY SHUT-OFF VALVEWITH UNIONFAN COIL UNIT SOLUTION 2A| ★★15

FAN COIL UNIT SOLUTION 2B| ★16YC - COMBINATION BALL VALVE,Y-STRAINER WITH UNION, P/T PORT,HOSE END DRAIN, CAPAND RETAINER STRAPS2 - STAINLESS STEELBRAIDED HOSEUA - UNIBODYMANUAL VENTURI BALANCING VALVEWITH P/T PORTS AND MEMORY STOPATCUP - UNIONWITH MANUAL AIR VENTAND P/T PORTFCUS2 - STAINLESS STEELBRAIDED HOSEDA - DIFFERENTIALPRESSURECONTROLLERWITH P/T PORTUB - UNIBODY SHUT-OFF VALVEWITH UNION

YC - COMBINATION BALL VALVE, Y-STRAINERWITH UNION, P/T PORT, HOSE END DRAIN, CAPAND RETAINER STRAPS2 - STAINLESS STEELBRAIDED HOSEUB - UNIBODY SHUT-OFF VALVEWITH UNION AND P/T PORTUP - UNIONWITH MANUAL AIR VENTFCUS2 - STAINLESS STEELBRAIDED HOSEKTM - PRESSURE INDEPENDENT CONTROL VALVEWITH P/T PORTS AND FDI ACTUATORFAN COIL UNIT SOLUTION 3A| ★17

18Introducing The KTM Pressure Independent Control ValveThe KTM from FDI is a pressure independent flow and temperaturecontrol valve built in one efficient and compact body design. Availablein sizes from ½” to 5”, with flow capacities up to 300 gpm, the KTM isideal for applications ranging from radiant panels, fan coils and VAVterminals, to large air handlers and process control applications.V+ 3 2The KTM provides flow control accuracy within ±5%, regardless ofdifferential pressure variations in the system up to 230 psi. Like all FlowDesign valves, it is 100% leak tested at the factory.• System pressure changes will not affect flow• Delivers maximum control, ±5%• Control valve authority close to 1, regardless of load• Low pressure drop for reduced pump head• Compact design fits tight spacesContact your local Flow Design Representative today, and ask about the KTM!Flow Design, Inc.1-800-ASK-FLOW (1-800-275-3569)Fax: 214-631-0735www.flowdesign.com1V-

Radiant PanelsRadiant panels transfer energy mostly by radiation, although partly by convection.Radiant panels are almost always in the occupied space, and typically close to the occupants. This calls for a quiet solution, implying a smallpressure drop. Because of the small load that these units typically serve, water flow to the coils is normally controlled with an ON/OFF ATC. Theseconsiderations together make a combination balancing / control valve such as the TBV-C the best choice. In larger systems where the pump head isgreater than 10 psi, a pressure control valve such as DA should be used to maintain the quiet operation that radiant systems provide. Alternatively,radiant panels can be balanced with a flow limiting valve such as AutoFlow at each terminal.Radiant PanelBalancing options:1. Combination terminal unit valve +shared Dp controllerRatinga. TBV-C if H < 10 psi ★★★b. TBV-C + DA if H ≥ 10psi ★★★2. Control valve + manualbalancing on each panela. ATC + FlowSet if H < 10 psi ★★b. ATC + FlowSet + DA if H ≥ 10 psi ★★3. Flow limiting on each panela. ATC + AutoFlow if H < 10 psi ★★★b. ATC + AutoFlow + DA if H ≥ 10 psi ★★★RADIANT PANEL OVERVIEW19RADIANT PANELS

RADIANT PANELSRADIANT PANEL SOLUTION 1A/1B| ★★★20YC - COMBINATION BALL VALVE,Y-STRAINER WITH UNION, P/T PORT,HOSE END DRAIN, CAPAND RETAINER STRAPTBV-C - COMBINATION TERMINAL VALVE,ON/OFF CONTROL, MANUAL BALANCING,P/T PORTS, SHUT-OFF AND FDI ACTUATORUP - UNIONWITH MANUAL AIR VENTS2 - STAINLESS STEELBRAIDED HOSERadiant PanelS2 - STAINLESS STEELBRAIDED HOSEDA - DIFFERENTIALPRESSURECONTROLLERWITH P/T PORTUB - UNIBODY SHUT-OFF VALVEWITH UNIONNOTE: USE DA IF H ≥ 10 PSI

YC - COMBINATION BALL VALVE,Y-STRAINER WITH UNION, P/T PORT,HOSE END DRAIN, CAPAND RETAINER STRAPUA - UNIBODYMANUAL VENTURI BALANCING VALVEWITH P/T PORTS AND MEMORY STOPATCUP - UNIONWITH MANUAL AIR VENTAND P/T PORTS2 - STAINLESS STEELBRAIDED HOSERadiant PanelS2 - STAINLESS STEELBRAIDED HOSEDA - DIFFERENTIALPRESSURECONTROLLERWITH P/T PORTUB - UNIBODY SHUT-OFF VALVEWITH UNIONNOTE: USE DA IF H ≥ 10 PSIRADIANT PANEL SOLUTION 2A/2B| ★★21

RADIANT PANEL SOLUTION 3A/3B| ★★★22YC - COMBINATION BALL VALVE, Y-STRAINERWITH UNION, P/T PORT, HOSE END DRAIN, CAPAND RETAINER STRAPAC - AUTOFLOW VALVEWITH UNION AND P/T PORTSATCUP - UNIONWITH MANUAL AIR VENTAND P/T PORTS2 - STAINLESS STEELBRAIDED HOSERadiant PanelS2 - STAINLESS STEELBRAIDED HOSEDA - DIFFERENTIALPRESSURECONTROLLERWITH P/T PORTUB - UNIBODY SHUT-OFF VALVEWITH UNIONNOTE: USE DA IF H ≥ 10 PSI

VAV TerminalsVAV terminals are used in a variable air volume system and heat (fan powered) or reheat (single duct) the air to the local needs of temperature.This heat can be provided by a hot water coil. The water flow in this coil is controlled with either modulating or ON/OFF control valve.In modulating systems with a relatively low pump head, the balancing can be performed with a manual or AutoFlow balancing valve. If the pump headis relatively high, then the pressure should be stabilized with differential pressure controller, shared between several hot water coils.ON/OFF systems work extremely well with a flow limiting valve such as AutoFlow or manual terminal valves. If the pump head is relatively high,the pressure should be stabilized with a differential pressure controller on each module.VAV Terminals (single duct shown)VAV TERMINAL OVERVIEWSupplyAirReheatCoilVAV TERMINALSBalancing options modulating control: Rating1. Flow limiting on each panela. ATC + AutoFlow if H < 4 x Δp ATC★★★b. ATC + AutoFlow + DA if H ≥ 4 x Δp ATC★★★2. Pressure stabilizationa. KTM ★★Balancing options ON/OFF control: Rating3. Flow limiting on each panela. ATC + AutoFlow ★★★4. Combination terminal unit valve +shared Dp controllera. TBV-C if H < 15 psi ★★b. TBV-C + DA if H ≥ 15 psi ★★5. Control valve + manualbalancing on each panela. ATC + FlowSet if H < 25 psi ★b. ATC + FlowSet + DA if H ≥ 25 psi ★23

VAV TERMINALSVAV TERMINAL SOLUTION 1A/1B| ★★★24SupplyAirYC - COMBINATION BALL VALVE, Y-STRAINERWITH UNION, P/T PORT, HOSE END DRAIN, CAPAND RETAINER STRAPS2 - STAINLESS STEELBRAIDED HOSEAC - AUTOFLOW VALVEWITH UNION AND P/T PORTSATCUP - UNIONWITH MANUAL AIR VENTAND P/T PORTReheatCoilDA - DIFFERENTIALPRESSURECONTROLLERWITH P/T PORTS2 - STAINLESS STEELBRAIDED HOSEUB - UNIBODY SHUT-OFF VALVEWITH UNIONUB - UNIBODY SHUT-OFFVALVE WITH UNIONNOTE: USE DA IF H ≥ 4 Δp ATC

SupplyAirYC - COMBINATION BALL VALVE, Y-STRAINERWITH UNION, P/T PORT, HOSE END DRAIN, CAPAND RETAINER STRAPS2 - STAINLESS STEELBRAIDED HOSEUB - UNIBODY SHUT-OFF VALVEWITH UNION AND P/T PORTUP - UNIONWITH MANUAL AIR VENTReheatCoilS2 - STAINLESS STEELBRAIDED HOSEKTM - PRESSURE INDEPENDENT CONTROL VALVEWITH P/T PORTS AND FDI ACTUATORVAV TERMINAL SOLUTION 2A| ★★25

VAV TERMINAL SOLUTION 3A| ★★★26SupplyAirYC - COMBINATION BALL VALVE, Y-STRAINERWITH UNION, P/T PORT, HOSE END DRAIN, CAPAND RETAINER STRAPAC - AUTOFLOW VALVEWITH UNION AND P/T PORTSUP - UNIONWITH MANUAL AIR VENTAND P/T PORTS2 - STAINLESS STEELBRAIDED HOSEReheatCoilS2 - STAINLESS STEELBRAIDED HOSE

SupplyAirYC - COMBINATION BALL VALVE,Y-STRAINER WITH UNION, P/T PORT,HOSE END DRAIN, CAPAND RETAINER STRAPTBV-C - COMBINATION TERMINAL VALVE,ON/OFF CONTROL, MANUAL BALANCING,P/T PORTS, SHUT-OFF AND FDI ACTUATORUP - UNIONWITH MANUAL AIR VENTS2 - STAINLESS STEELBRAIDED HOSEReheatCoilS2 - STAINLESS STEELBRAIDED HOSEDA - DIFFERENTIALPRESSURECONTROLLERWITH P/T PORTUB- UNIBODY SHUT-OFF VALVEWITH UNIONNOTE: USE DA IF H ≥ 15 PSIVAV TERMINAL SOLUTION 4A/4B| ★★27

VAV TERMINAL SOLUTION 5A/5B| ★28SupplyAirYC - COMBINATION BALL VALVE,Y-STRAINER WITH UNION, P/T PORT,HOSE END DRAIN, CAPAND RETAINER STRAPUA - UNIBODYMANUAL VENTURI BALANCING VALVEWITH P/T PORTS AND MEMORY STOPATCReheatCoilDA - DIFFERENTIALPRESSURECONTROLLERWITH P/T PORTUP - UNIONWITH MANUAL AIR VENTAND P/T PORTUB - UNIBODY SHUT-OFF VALVEWITH UNIONUB - UNIBODY SHUT-OFFVALVE WITH UNIONNOTE: USE DA IF H ≥ 25 PSI

Process CoolingCooledApplicationCooledApplicationCooledApplicationProcess cooling is used in many different applicationssuch as computer room air conditioning (CRAC),breweries, paint shops, automotive industry andmolding applications, etc.Depending on the exact application it can be eithermodulating or ON/OFF water flow control. Reliability istypically the highest priority in these systems.Balancing options:RatingIF ON/OFF1. Flow limiting on each panela. ATC + AutoFlow ★★★IF Modulating★★★2. Pressure stabilization – (modulating ATC)a. ATC + DA + Venturi ★★★b. KTM ★★★PROCESS COOLING OVERVIEW29PROCESS COOLING

PROCESS COOLING 1A| ★★★PROCESS COOLING30WS - FLANGED AUTOFLOWREGULATORWITH EXT. P&T PORTSATCBF - BUTTERFLY VALVECW - STRAINERWITH P/T PORTFA - ACCESSORY FLANGEWITH MANUAL AIR VENTAND P/T PORTCooled ApplicationBF - BUTTERFLY VALVEFA - ACCESSORY FLANGEUB - UNIBODY SHUT/OFFVALVE WITH HOSE ENDADAPTER

TOP VIEWCAPILLARY TUBECONNECTION BEHINDP/T PORTATCBF - BUTTERFLY VALVEFF - ACCESSORYWITH P/T PORT(FLG’D X FLG’D)DA - FLANGEDDIFFERENTIALPRESSURECONTROLLERCW - STRAINERWITH P/T PORTVF - FLANGED STEEL VENTURIWITH 1/4” TEE, BUSHING,MANUAL AIR VENTAND EXT. P/T PORTSCooled ApplicationBF - BUTTERFLY VALVEFA - ACCESSORYFLANGEUB - UNIBODY SHUT/OFFVALVE WITH HOSE ENDADAPTERPROCESS COOLING 2A| ★★★31

PROCESS COOLING 2B| ★★★32FF - ACCESSORYFLANGED x FLANGEDWITH P/T PORTFDIACTUATORBF - BUTTERFLY VALVEBF - BUTTERFLY VALVEKTM - FLANGEPRESSURE INDEPENDENTCONTROL VALVEWITH P/T PORT ANDFDI ACTUATORCW - STRAINERWITH P/T PORTFA - ACCESSORYFLANGECooled ApplicationUB - UNIBODY SHUT/OFFVALVE WITH HOSE ENDADAPTER

Heat PumpWater Source Heat PumpsWater source heat pumps (WSHP) provide hotor cool air to individual zones using water at aneutral temperature to transport heat. A reversiblerefrigeration cycle moves heat from the room into thewater to cool the room or vice versa.In many installations the water runs continuously,but the addition of an ON/OFF control valve reducespumping cost. Water flow is normally maintained ata constant level as long as the unit is operating. It iscritically important that the heat pump receives enoughwater to avoid freeze-up or refrigerant overpressureconditions. Insufficient water flow would also cause alow coefficient of performance (COP). Hence balancingworks extremely well with flow limiting AutoFlow .Balancing options:Rating1. Flow limiting on each panela. ATC + AutoFlow ★★★HEAT PUMP OVERVIEW33HEAT PUMPS

HEAT PUMP SOLUTION 1AHEAT PUMPS| ★★★34AC - AUTOFLOW VALVEWITH UNION AND P/T PORTSATCUP - UNIONWITH MANUAL AIR VENTAND P/T PORTS2 - STAINLESS STEELBRAIDED HOSEYC - COMBINATION BALL VALVE,Y-STRAINER WITH UNION, P/T PORT,HOSE END DRAIN, CAPAND RETAINER STRAPHeat PumpS2 - STAINLESS STEELBRAIDED HOSE

Cooling Tower Cooling TowerCondenserEvaporatorCentral Plants / Production UnitsChillers are commonly staged ON/OFF depending onrequired capacity. Water flow through each chiller isnormally constant during operation. Each chiller hasan evaporator side through which water flows and, forwater cooled chillers, there is also water flow throughthe condenser side. In many cases there are multiplecooling towers. Each of these areas requires balancing.Boilers are, like the chillers, usually staged ON/OFF,depending on the required capacity. On very largeboiler plants the exhaust may also be equipped with acondenser side.As the flow through each evaporator, condenser, boileror cooling tower is constant, the balancing is mosteasily accomplished with AutoFlow . The balancing canalso be done with manual balancing such as FlowSet .CondenserEvaporatorBalancing options:Rating1. Flow limiting on each sectiona. ATC + AutoFlow ★★★2. Manual balancing on each sectiona. ATC + FlowSet ★★CENTRAL PLANT OVERVIEWCENTRAL PLANT35

CENTRAL PLANTCENTRAL PLANT SOLUTION 1A| ★★★36Cooling Tower Cooling TowerATC ATCWS VALVE - FLANGED AUTOFLOWREGULATOR WITH EXT. P/T PORTSWS VALVE - FLANGED AUTOFLOWREGULATOR WITH EXT. P/T PORTSWS VALVECondenserWS VALVE - FLANGED AUTOFLOWREGULATOR WITH EXT. P/T PORTSEvaporatorWS VALVEWS VALVE - FLANGED AUTOFLOWREGULATOR WITH EXT. P/T PORTSCondenserEvaporatorCW - STRAINERBF - BUTTERFLYVALVEUB - SHUT-OFF VALVEWITH HOSE END ADAPTER

Cooling Tower Cooling TowerATCATCAF VALVE - FLANGED VENTURIWITH EXT. P/T, MEMORY STOPAND BUTTERFLY VALVEAF VALVEAF VALVE - FLANGED VENTURIWITH EXT. P/T, MEMORY STOPAND BUTTERFLY VALVECondenserATCAF VALVE - FLANGED VENTURIWITH EXT. P/T, MEMORY STOPAND BUTTERFLY VALVEEvaporatorAF VALVECondenserATCAF VALVEEvaporatorCW - STRAINERBF - BUTTERFLYVALVEUB - SHUT-OFF VALVEWITH HOSE END ADAPTERCENTRAL PLANT SOLUTION 2A| ★★37

SYMBOL LEGENDMmemory stopP/T P/T plugCheck valve38Manual CalibratedBalancing ValveHose end drain valveManual airUnion withair ventcap & chainHOSEFire and smoke-rated hoseShut-off valveVenturi flowmeterAV AVP/T plugDrainFlangeManual air ventAutomatic air air vent?Check valvePlace for for balancingoptionShut-off valveMAutomatic flowcontrol Manual valveCalibratedManual BalancingCalibratedValveBalancing ValveBall valveVenturi flowmeterBall valve withmemory Venturi stopflowmeterATCATCY-strainerDrainUnionUnionAVAutomatic air ventFlangeTwo-way ATC valveFlange?PumpPlace for balancingoptionPumpMAutomatic flowButterfly valveAutomatic control valveflowcontrol valveButterfly Ballvalve valvewithmemory stopBall valveNCNOCATC ATCY-strainerThree-way ATC valveY-strainerSupply linesMMBall valve withHose end drain valveBall memoryvalve stopwithwith cap & chainmemory stopButterfly valveP/T plugButterfly valveATCHOSEATC ATCATCNC NC CCNCNO NO CTwo-way ATC valveFire and Two-way smoke-rated ATC valvehoseThree-way ATC valveCheck Three-way valve ATC valveReturn linesMMButterfly valve withManual air ventButterfly memory valve stopwithmemory stopNOShut-off valve

Hydronic Tr ainingFlow Design provides a total hydronic solution to the HVAC industry,with one of the broadest product lines, and technical training programsbased upon your specific needs. Our world-wide experience baseand in-depth knowledge of hydronic systems applications in HVAC issomething you can build on!Flow Design offers a variety of knowledge-based seminars and training:For design engineers:• Why balance HVAC systems with modulating control?• Mastering variable flow distribution systems• Balancing with flow limitation AutoFlow • Balancing with manual balancing FlowSet • Differential pressure stabilizationFor contractors and commissioning technicians:• How to perform optimum balancing during theconstruction process• Optimization of differential pressure controller and pump headbased on professional balancingFor further information about our training curriculum or scheduledschools, please contact us directly at:Flow Design, Inc.1-800-ASK-FLOW (1-800-275-3569)Fax: 214-631-0735www.flowdesign.comHYDRONIC TRAINING39

Form No.: 320 Rev.: 1 Date: 1/20088908 Governors RowDallas, Texas 75247214.631.0011 Phone800.ASK-FLOW214.631.0735 Faxwww.flowdesign.com