Trane Understanding Fan Performance Curves and Their Application

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Application Considerations

Performance Data Determination

The fan performance section of this catalog contains a fan performance table and fan curve for each fan size.

The performance data contained in this catalog was calculated from tests conducted in accordance with AMCA Standard 210 Laboratory Methods of Testing Fans for Rating.

The AMCA test procedure uses an open inlet and 10 wheel diameters of straight discharge ductwork to assure maximum static regain. The fan is direct driven by a dynamometer.

The fan performance tables in this catalog are based upon standard air: 0.075 lbs/ft3 (70 F, barometric pressure 29.92-inches Hg).

Fan Performance Curves

A fan performance curve is a graphical presentation of the performance of a fan. Usually it covers the entire range from free delivery (wide open cfm, no obstruction to flow) to no delivery (blocked tight, an airtight system with no air flowing).

The point of intersection of the system curve and the fan performance curve determines the point of operation and actual flow volume. If the system resistance has been accurately determined and the fan properly selected, their performance curves will intersect at the design flow rate. Refer to Figure A-2. The normalized Duct System A from Figure A-1 has been plotted with a normalized fan performance curve.

Temperature and Altitude Corrections The fan performance values in the tables and curves of this catalog are based on standard air (.075 lbs/ft3). If the airflow requirement for a particular job is stated in terms of nonstandard air, a density correction needs to be made before selecting the fan. It is important to also note that most air friction charts for ducts, filters, coils, etc. are also based on standard air and corrections must be made to determine proper losses at other conditions.

Figure A-3 illustrates the ratio of air densities to standard air at various temperatures and elevations. A Q fan is designed for operation between -20 F and 150 F only.

Figure A-2 — Point of Operation — Interaction of the System Curve and the Fan Performance Curve

Figure A-3 — Air Density Corrections

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Contents FAN-DS-2 August Model Q Fans Sizes 16 through Super Q II FansFeatures and Benefits Contents Features Benefits Trane Model Q fans require up toSuper Q II Fan Variable Air Volume CompatibleSuper Q II Accessories Super QTrane Plus Duct Silencer Plus SilencerStatic regain Airflow Aerodynamic Air Path This provides smooth, spiral-free dischargeFeatures Benefits Saving Valuable Equipment Room Space Draw-Thru Supply Application Small CapacityDraw-Thru Supply Application Large Capacity Figure F-5Table F-1 Total Installed Cost Comparison Features Benefits Reduce Installed Cost By UpTo 20 PercentLower Installation Costs First Cost ComparisonsValid Select Prod Able Prod. able Cat Description Model Number DescriptionValid Select Prod Able Cat Description System System Curve Application ConsiderationsAbbreviations Performance Data Determination Fan Performance CurvesUnducted Plenum Inlet Unducted Outlet Table A-1 Q Fan/Super Q II Fan Installation Kt CorrectionsFan Option Kt Corrections Ducted Inlet Ducted OutletSuper Q II Fan Modulation AC Inverter Capacity Control Figure A-5 VAV System Modulation CurveFigure A-6 Inlet Vane Performance Table A-3 Maximum Torque For Operation Of InletVanes Motor and Drive SelectionParallel Fan Operation Table A-4 Parallel OperationRecommended Super Q II NC40 Plenum Configuration Operating Cost/EfficiencyTable A-5 Inlet Vane Sound Data Fan Sound DataTrane Acoustics Program Table S-2 Long Plus Silencer Attenuation 2D Length Selection ProcedureTable S-1 Short Plus Silencer Attenuation 1D Length Fan Size PerformanceData Minimum Fan RPM Without Vfrb OptionPerformance Fan Data Super Q Size Minimum and Maximum Motor HP RangesTable P-2 Size 19 Q Fan Performance Fan Data Super Q Size Table P-3 Size 21 Q-Fan Performance Fan Data Super Q Size Table P-4 Size 24 Q-Fan Arrangement 15-30 Table P-5 Size 27 Q-Fan Arrangement Table P-6 Size 30 Q-Fan Performance Fan Data Super Q Size Table P-7 Size 33 Q-Fan Performance Fan Data Super Q Size Table P-8 Size 36 Q-Fan Performance Fan Data Super Q Size Table P-9 Size 40 Q Fan Performance Fan Data Super Q Size Table P-10 Size 44 Q-Fan Performance Fan Data Super Q Size Minimum Fan RPM Without Vfrb Option Fan Table P-12 Size 54 Q-Fan Fan Table P-13 Size 60 Q-Fan Fan Arrangement Dimensional Data WeightsArrangement 9 Dimensions Out Arrangement 1 Dimensions Out Arrangement1Arrangement 9 Dimensions Dimensional Figure D-1 Q Fan Inlet Vanes Table D-1 Inlet Vane DimensionsFigure D-3 Super Q II 16-44 Sizes Table D-3 Table D-5 Long Outlet Plus Silencer Mechanical Specifications Inlet Bellmouth Q, SQ2 Adjustable Inlet VanesInlet Screen Q, SQ2 Inlet Flange QFAN-DS-2

Fan specifications

Trane is a well-known name in the heating, ventilation, and air conditioning (HVAC) industry, and one of their standout products is the Trane Fan. Designed to provide efficient and effective airflow, the Trane Fan is a versatile solution suited for both residential and commercial applications.

One of the main features of the Trane Fan is its Energy Efficiency. With increasing energy costs, having a fan that operates efficiently is crucial. Trane fans are designed with advanced motor technology that enhances performance while reducing energy consumption. This not only helps lower utility bills but also contributes to a more sustainable environment.

The Variable Speed Technology is another notable characteristic. Trane fans come equipped with variable speed motors that adjust the airflow according to the specific needs of a space. This adaptability means that the fan can run at lower speeds, providing quiet operation while maintaining comfort levels, and ramping up power when needed for more intense cooling or ventilation.

Durability and robustness are core attributes of Trane fans. Constructed from high-quality materials, these fans are built to withstand harsh conditions and continue to function optimally over time. This longevity is essential for commercial settings where reliability is paramount.

Additionally, Trane delivers innovative sound-reduction technologies within their fan designs. Special engineering ensures that these units operate quietly, making them ideal for environments such as offices, schools, and homes where noise can be a distraction.

Another significant aspect is Smart Technology Integration. Trane fans are compatible with various smart home systems, allowing users to control their systems remotely. This feature enhances convenience, enabling homeowners and facility managers to monitor and adjust air quality effortlessly.

In terms of ease of installation, Trane Fans are designed with user-friendly features that facilitate quicker setup and less hassle. Their modular designs allow for flexibility in installation across various applications.

In summary, the Trane Fan stands out due to its energy efficiency, variable speed technology, durability, sound-reduction capabilities, smart technology integration, and ease of installation. These characteristics make Trane fans a reliable choice for enhancing indoor air quality across diverse environments.