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DAF-101

Product catalog summary

Overview

This document compiles detailed technical performance data for DESIGN 62 Double Width Airfoil Fan Kits across multiple sizes, ranging from small (size 135) to very large (size 490) fans. It provides comprehensive tabulated data on fan specifications, operating parameters, and performance metrics under standardized installation conditions (Type B: free inlet, ducted outlet). Power ratings exclude drive losses and effects of appurtenances in the air stream.

1. Fan Specifications

Sizes and Dimensions: Fan wheel diameters range from 13-7/32 inches (size 135) up to 48 inches (size 490).
Outlet Areas: Corresponding outlet areas increase with size, from 1.89 sq. ft. (size 135) to 24.85 sq. ft. (size 490).
Installation Type: All data assumes installation type B (free inlet, ducted outlet).

2. Performance Data

Performance metrics are provided in extensive tables for each fan size, covering a wide range of operating conditions:

RPM Range: Varies by size, from approximately 1,200 RPM for larger fans to over 150,000 RPM for smaller sizes.
Airflow (CFM): Volumetric flow rates span from a few hundred CFM to over 24,000 CFM depending on fan size and speed.
Static Pressure (SP): Data covers static pressures from 1/4" up to 20" or more, representing the resistance against which the fan operates.
Brake Horsepower (BHP): Power requirements are tabulated for each operating point, excluding drive losses; values range from fractions of a horsepower to over 50 BHP for larger fans at high speeds.
Velocity (FPM): Air velocity at the outlet is provided, important for noise and aerodynamic considerations.

3. Installation and Operating Conditions

Performance data is based on installation type B: free inlet and ducted outlet.
Power ratings exclude drive losses and do not account for appurtenances such as filters or dampers, which may affect actual performance.
Users must ensure installation conditions match assumptions to achieve expected results.

4. Data Interpretation and Usage

The tabulated data enables engineers and designers to select appropriate fan sizes and operating speeds to meet specific airflow and static pressure requirements.
Higher RPM generally increases airflow and power consumption.
Static pressure directly impacts required power and achievable airflow.
Outlet area and wheel diameter influence fan capacity and efficiency.
Brake horsepower data assists in motor sizing and energy consumption estimation.

5. Limitations and Recommendations

Power ratings exclude drive losses; actual power consumption may be higher.
Effects of appurtenances in the air stream are not included and should be considered separately.
Installation conditions must align with those assumed (free inlet, ducted outlet) for accurate performance prediction.
Adjustments may be necessary to account for real-world installation effects and drive system efficiencies.
Use outlet velocity and FPM data to assess noise and airflow characteristics in system design.

6. Summary of Critical Information

Design 62 Double Width Airfoil Fans cover a broad size range suitable for HVAC and industrial ventilation applications.
Performance data supports precise fan selection based on airflow, static pressure, RPM, and power requirements.
Data is organized in detailed tables correlating CFM, SP, RPM, BHP, and velocity for each fan size.
Users should consider additional losses and installation variations when applying the data.

7. Additional SP Series Component Data

The document also includes technical specifications for SP series components ranging from 1" to 10" sizes, providing RPM, BHP, CFM, and FPM values. These data assist in selecting components based on airflow and power requirements, defining operational limits for safe and efficient performance.

Conclusion

This document serves as a comprehensive technical reference for engineers and designers involved in selecting and evaluating DESIGN 62 Double Width Airfoil Fans and related SP components. The detailed tabulated data facilitates informed decision-making for system design, ensuring optimized airflow, pressure handling, and power consumption under standardized installation conditions.

Catalog excerpts

CHICAGO BLOWER CORPORATION • 1675 GLEN ELLYN ROAD • GLENDALE HEIGHTS, ILLINOIS • U.S.A.

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■ INLET CONES ■ INLET VOLUME CONTROLS ■ SHAFTS ■ HOUSINGS ■ SHAFT COOLER ASSEMBLIES The manufacturing of I all Chicago Fans Kits is monitored by strin-_J gent Quality Control and Quality Assurance Programs. Consistent fan quality and reliability attests to Chicago's dedication to customer satisfaction. "Our fan’s most important feature is the reliability we are able to add to your product." Chicago Blower’s Airfoil Fan Kits provide the user with the flexibility to custom build a fan from individual components to meet their specific air performance and configuration requirements. With its airfoil...

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CHICAGO AIRFOIL WHEEL The airfoil blade is recognized as the industry’s most efficient and quietest design, creating a smooth lifting airflow over the entire surface of the blade. Chicago’s airfoil wheel has a broad efficiency curve that offers a wide operating range with more selections from each fan size. Wheels are constructed of stitch welded high strength steel with keyed straight bore. Continuously welded construction is also available. Wheels are statically and dynamically balanced. REDUCED ENERGY COSTS Because the airfoil blade glides through the air with less turbulence, the fan requires...

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HOUSINGS Housings are fabricated from heavy gauge steel. They are suitable for CW or CCW rotation as inlet cones are mounted on both sides. Sizes 445 and 490 include welded stiffeners, INLET CONES Full width cones are used with either full width housings or no housing as an open wheel installation. The cone is held to the housing with flat washers to facilitate proper positioning. A 72% cone is needed for 72% housings, or the cone can be used with no housing. INLET VOLUME CONTROLS The Inlet Volume Control (IVC) is ideal for variable volume systems. It provides more economical performance at reduced...

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OPEN WHEEL DATA Turbulence is caused by sharp bends and abrupt area changes beyond the fan housing. This loss can be prevented by baffles or turning vanes. As an option, open wheel factors can be applied to compensate for the loss. Apply the following factors to Capacity in the performance tables and maintain a minimum clearance of one wheel radius between the wheel and the wall or walls of the discharge plenum. Open Wheel Factors CLOSED PLENUM • Fan Size refers to “nominal size" derived by adding a decimal point one place from the right. Example -122 = nominal size 12,2". Closed Plenum with...

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Fan capacity tables are based on standard air at 70°F and sea level. For other operating conditions, correct the required Static Pressure (SP) before using the rating tables. Brake Horsepower (BHP) is corrected after the fan selection has been made. EXAMPLE: Select a D/62 fan kit to handle 5500 CFM at 2" SP, 120°F and 1500 feet above sea level. RA Fan was specifically designed for improved efficiency and lower sound levels in low pressure, high volume applications. A typical example of an advantageous RA selection follows: TABLE r - Temperature and Altitude Correction EXAMPLE: Size 150 fan with...

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