FAN-DS-2 August 2000 Model Q Fans Sizes 16 …

1 Super Q II FansSizes 16 through 44 Model Q FansSizes 16 through 60 FAN-DS-2 August 2000 FAN-DS-2 Super Q II FansSizes 16 through 44 Model Q FansSizes 16 through 602 Featuresand Benefits American Standard Inc. 2000Q FanThe Model Q fan is a quiet, airfoil, in-line fan specifically designed for airconditioning applications. This highlyrefined axial flow fan is available in 13sizes from 1,000 through 80,000 and compact, the Q fan hasproven to be the ideal air movingdevice for standalone applications andalso for custom air handling units. Itcan be used for supply, return andexhaust in arrangement 1 (for floormounting of larger units with heaviermotors) and arrangement 9 (horizontalor vertical mounting), it can be selectedin class 1, 2 and 3. Arrangement 9permits factory mounting of the motoron top, bottom, or either side of the fan see The Q (Quiet) FanThe Trane Model Q fan generates lesslow frequency noise (more difficult toattenuate) than any other type of fan inthe HVAC industry.

2 Sound levelcomparisons show common vaneaxialfans produce up to 23 db higher soundlevels than the Model Q significantin industrial applications. Being quieterthan centrifugal fans allows forinstallations closer to buildingoccupants. Saves Mechanical Room SpaceThe compact quiet Q fan saves floorspace, which reduces system first cost. Easy To InstallRigging and installation is so muchquicker and easier that total installedcost savings are typically five percentor more. Low MaintenanceBelt-driven with fixed blades, Model Qfan has very few moving parts. Thisdesign results in exceptionally lowmaintenance requirements. No fanteardowns need be scheduled. In fact,Q fans installed 25 years ago are stilloperating just as quietly as when theywere End ViewArrangement 9 Arrangement 1 AMCA Licensed RatingsThe Trane Company certifies that theModel Q fans shown herein arelicensed to bear the AMCA Seal.

3 Theratings shown are based on tests andprocedures performed in accordancewith AMCA Publication 211 andcomply with the requirements of theAMCA Certified Ratings Program. Flexible InstallationThe Model Q arrangement 9 can be setin any position, for horizontaldischarge, angled discharge andvertical discharge either upblast ordownflow. The only limitations placedon this arrangement are those dictatedby good fan installation practice. Motor slide rails and drive guard arestandard, at no extra Fan Accessories Inlet flange for simplified, rigidconnection of ductwork to inlet end offan Inlet screen safety accessorymounted to fan inlet. Heavy, platedsteel wireNote: inlet screen and inlet flange aremutually exclusive. Inlet vanes mechanically modulatefan capacity Inlet bellmouth used with unductedor plenum applications. Improves airflow and reduces noise.

4 Inlet silencer (long or short) flexconnected to Q fan Outlet flange for simplified, rigidconnection of ductwork to outlet end offan Outlet screen safety accessorymounted to fan outlet. Heavy, platedsteel wireNote: outlet screen and outlet flangeare mutually exclusive. Outlet duct diffuser (equalizer) makes fan outlet diameter equal to inletdiameter Outlet flow stabilization screen smallmesh outlet screen . Helps offset effectof poor outlet airflow conditions Outlet silencer (short or long) flexconnected to Q fan Vertical mounting legs used witharrangement 9 for vertical dischargefloor and ceiling mounted Isolators to eliminate vibrations forfloor, ceiling and vertical installations Special coatings to protect againstalkyds, acids and corrosiveenvironments Access door available on Sizes 49, 54and 60 for easier service Drain recommended to drain off thecondensate where moisture-laden air isexhausted Copper grease lines plastic lines arestandard Double acoustic enhancement insulation and perforated sheet metalto attenuate radiated sound Fan insulation self-adhesive foam,applied on the outside of the fan shellto protect against moisture Variable frequency inverter balancingand reinforcement (frequency inverterby others).

5 This option requiresconstant pitch Q Fan Arrangement 9 Features and Benefits2 Model Number Description12 Application Considerations13 Selection Procedure21 Performance Data22 Dimensional Data and Weights48 Mechanical Specifications544 This chart shows a typical NC levelcomparison between commonvaneaxials, tubular centrifugals, airfoilcentrifugals and the Trane Model Q compact fan. The shaded arearepresents range of vaneaxials Model Q fans require up to85 percent less cubic space than airfoilcentrifugal fans and 40 percent lessthan common vaneaxials of equivalentinstalled sound level. Floor spacesavings can be as much as 65 percentwhen compared to the commonvaneaxial and airfoil centrifugal and40 percent when compared to FanAirfoil Centrifugal FanTubular Centrifugal FanTrane Model Q Compact FanFeaturesand Benefits5 Featuresand BenefitsSuper Q II PlusMore than twenty years after theintroduction of the Model Q , it stillretains its reputation as one of thequietest HVAC fans in the world.

6 Thistradition of excellence continues withthe introduction of a new Q fanacoustical enclosure and duct silencerso effective and so compact that wenamed it the Super Q Q II FanAvailable with Model Q fans from 1,000to 43,000 cfm, the Super Q II enclosureinhibits radiated fan and motor noisefrom entering the surrounding space. Itinternally isolates the fan on highdeflection spring isolators so ductworkcan be connected directly to theenclosure. It is uniquely designed to befloor or ceiling mounted with the Model Q needs very littlemaintenance, future maintenancerequirements were considered bySuper Q II designers. Every unit has thebearing grease lines extended throughthe casing and every unit has two fullsize access panels that providecomplete access to all Air Volume CompatibleThe Super Q fan is modulated for VAVwith variable frequency drives (byothers), not with inlet vanes.

7 Variablespeed inverter fan modulation offersexceptional energy saving andexceptionally quiet part load variable speed Q fans arestructurally reinforced to handle theuneven harmonic loadings associatedwith variable speed fan operation. Inaddition, the factory gives variablespeed Q fans a precise, 10-pointbalance to further help assure trouble-free operation. Only constant pitchdrives should be used with variablefrequency Q II Accessories Inlet screen safety accessorymounted to fan inlet. Heavy, platedsteel wire Inlet bellmouth used with unductedor plenum applications. Improves airflow and reduces noise. Inlet silencer (long or short) rigidconnection to Super Q fan Outlet flow stabilization screen smallmesh outlet screen . Helps offset effectof poor outlet airflow conditions Outlet silencer (short or long) flexconnected to Q fan Variable frequency inverter balancingand reinforcement (frequency inverterby others).

8 This option requiresconstant pitch drives. Outlet screen safety accessorymounted to fan outlet. Heavy, platedsteel Q II6 Featuresand BenefitsTrane Plus Duct SilencerThe Plus option is a high performanceduct silencer. Designed specifically forthe Super Q II and Model Q , it hasseveral unique features that reduceairborne noise and turbulence toexceptionally low levels. Briefly, thePlus option develops maximum staticregain while simultaneously limitingobjectionable mid and high frequencynoise. The Plus option should be usedwhenever quiet comfort is desiredand the duct system is acousticallyunable to provide s Plus Silencer providessignificant noise attenuation, up to32 db at 1,000 Hz, without a significantincrease in fan SilencerThe modular, component designapproach of the Super Q II air handlingsystem makes it exceptionally wellsuited for renovation, retrofit andreplacement projects.

9 The Super Q II airhandling system components (fan,silencers, filter/coil module, etc.) fitthrough most doors and elevators andcan be easily field-assembled into anysystem configuration (blow-thru, draw-thru, etc.).By carrying the concept of noise sourceattenuation to its economic maximum,Trane has created a fan system that canmove significant amounts of airwithout creating objectionable lowfrequency rumble. It provides provenacoustical performance with lessdesign risk. In project after project, theTrane Model Q fan has been the key tocreating NC 15 to NC 35 quietcomfort quiet, the Super Q II Plussystem is small and compact. In fact, itis small and quiet enough that it can besuccessfully installed in ceilingplenums. Locating a Super Q II Plus inthe plenum helps reduce and eveneliminate the floor space needed forthe mechanical BenefitsLow Sound Level, High EfficiencyProvided by Unique AerodynamicFeatures[7] Hub Streamlining Insulation[9] Airfoil Vanes (stationary)[10] Stabilizing Pitch[4] Airfoil Blade Wheel.

10 [5] Aerodynamic Pitch[6] Minimum Tip Clearance[2] Aerodynamic Inlet Bell[12] End Cone[8] Exact Blade to Vane Spacing[11] Precise Divergent Angle Diffuser Discharge Cone[3] Aerodynamic Inlet Cone[1] Thin Strut Patented Bearing SupportPrecision cast fan wheel and diffuserfor highly efficient aerodynamicperformance. [8]Precise divergent angle for maximumstatic regain. [11]Aerodynamic inlet provides smoothairflow. [3]Note: Call-out numbers shown above are referenced on page BenefitsThe low sound and high performanceof the Trane Model Q fan are achievedby reducing noise-creating, energy-consuming turbulence within the research and developmenttechniques employed were similar tothose used in perfecting today s highperformance axial flow jet enginecompressors. The resulting smooth airpath has made the Model Q the firstvaneaxial fan to provide quiet, efficientoperation, suitable for air Air PathA component by component analysisof the Model Q points to 12aerodynamic features which are keysto a smooth air path.