Note

Figure 4

Table 5

Adjusting Fan Blade Pitch

The trial pitch is the calculated setting for design conditions (water rate , heat load, air density, and brake horsepower). The trial pitch is provided by SPX (see page 2).

1–Select a position on the fan circumference and rotate each blade to this common location when setting or checking blade pitch. Sup- port the blade tip to maintain a common rotation plane while setting the fan pitch. The pitch is set 3⁄16" (5 mm) inboard of the blade tip by placing a protractor on top of a parallel sided straight edge that extends across blade width as shown in Figure 4.

2–Be sure all blades are positioned correctly on hub, then set the pitch. Blades should be within ± 1⁄4° of the desired pitch angle. After the desired setting is obtained, progressively tighten the hardware according to Table 5. Recheck the pitch angle. If required, loosen the hex nuts and reset the pitch as necessary until the proper pitch angle is obtained.

Bolt

Torque Wrench Setting

Diameter

 

 

 

ft·lbƒ

N·m

 

3⁄8"

40

55

 

5⁄8"

100

136

 

5

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Page 5
Image 5
SPX Cooling Technologies 03-11A user manual Adjusting Fan Blade Pitch
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03-11A specifications

SPX Cooling Technologies is renowned for its innovative solutions in the cooling industry, and one of their prominent products is the SPX Cooling Technologies 03-11A. This equipment is designed to provide efficient cooling for various applications, making it an essential component in many industrial and commercial settings.

The SPX 03-11A is characterized by its robust construction and high-performance capabilities. It features a compact design that allows it to fit into tight spaces while still delivering ample cooling performance. This model is particularly suitable for environments where space is at a premium, without compromising on efficiency.

One of the standout features of the SPX 03-11A is its advanced heat exchanger technology. The unit utilizes a reliable and efficient heat exchange process, which maximizes the cooling capacity while minimizing energy consumption. This results in lower operational costs and reduced environmental impact, aligning with modern sustainability goals.

In terms of reliability, the 03-11A is engineered with durable materials that withstand harsh operating conditions. It is equipped with corrosion-resistant components, enhancing its longevity and reducing the need for frequent maintenance. This reliability is crucial for critical applications where downtime can lead to significant productivity losses.

The unit also incorporates state-of-the-art fan technology. SPX has designed high-efficiency fans that provide optimal air flow, ensuring consistent performance even in varying ambient conditions. The fan operation can be controlled intelligently, allowing for variable speed adjustments that further enhance energy savings and noise reduction.

Another feature of the SPX Cooling Technologies 03-11A is its ease of installation. The unit is designed for user-friendly setup, enabling quick deployment in a range of applications. Additionally, it has been engineered for ease of maintenance, with accessible components that allow for straightforward servicing.

Overall, the SPX Cooling Technologies 03-11A is a versatile, reliable, and efficient cooling solution, ideal for businesses looking to optimize their cooling processes while minimizing energy use and maintenance costs. With its cutting-edge technologies and robust design, the 03-11A stands out as a preferred choice in the competitive landscape of cooling solutions.
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