Fan Blade Installation

BLADE CLAMP

LOCKING HEX NUT OR

HEX NUT AND LOCK WASHER

Note

Figure 5

Marley HP7000 fan blades are manufactured to equal moment weight and blade clamps to equal static weight. The blades and clamps can be installed in any position without affecting fan balance.

At the end of the blade shank on a nameplate is inscribed a let- ter code (i.e. “A” or “B” etc.). When installing or replacing blades use only blades with the same letter code.

1–Lubricate the 3/4″ bolt and 3/4″ hex-nut threads with thread lu- bricant. Set the hardware aside.

2–Remove one set of blade clamps from the hub assembly. Blade clamps are installed on the hub assembly at the factory with spacers for shipping purposes. Remove and discard the spacers. Position the blade clamps around the shank of a blade with the machined- face end of the blade clamp against the blade safety shoulder. See Figure 4. Large nylon cable ties can be used to hold blade clamps on the blade during installation providing easier assembly.

3–Insert the blade with blade clamps around the shank and with the concave blade side (TOP) on the discharge side between the hub assembly plates as shown in Figure 5 and Figure 6. Vertically align the four bolt holes in the clamps and plates. Install four lubricated 3/4″ bolts, eight 3/4″ flat washers, (four 3/4″ lock washers if hard- ware material is monel), and four 3/4″ hex nuts, engaging the nuts only three to four threads as shown in Figure 5. Do not tighten the hardware until all the blades have been installed. The blade must be free to rotate in the clamp for pitch adjustment.

4–Repeat until all blades, clamps, and hardware have been installed in the hub assembly.

FLAT WASHER

HUB PLATE

	HUB PLATE
	FLAT WASHER
FAN BLADE	MACHINE BOLT	7
		7

HP700 specifications

SPX Cooling Technologies HP700 is a state-of-the-art cooling tower designed to meet the demanding needs of modern industrial and commercial applications. With its robust construction and innovative design, the HP700 offers reliable performance while minimizing energy consumption and operational costs.

One of the main features of the HP700 is its high-efficiency fan design, which significantly enhances air flow and cooling capacity. The use of advanced aerodynamics in the fan blade design reduces energy consumption while maintaining optimal cooling performance. Additionally, the variable frequency drive (VFD) technology allows for adjustable fan speeds, ensuring that the cooling tower can respond effectively to fluctuating thermal loads.

The HP700 also boasts a unique, patented fill design that maximizes water distribution and contact time. This enhanced fill enhances heat transfer efficiency, allowing for more effective cooling in a compact footprint. The fill material is constructed from durable, corrosion-resistant materials, ensuring longevity and reduced maintenance needs.

Energy efficiency is a priority for the HP700, which incorporates the latest technologies in terms of heat exchange and water management. The design includes advanced drift eliminators that reduce water loss, while specially designed nozzles ensure optimal water distribution across the fill. This innovative approach not only preserves water resources but also enhances overall system performance.

In terms of construction, the HP700 is built with high-strength materials, including fiberglass-reinforced plastic and stainless steel. These materials offer superior resistance to corrosion and wear, making the HP700 suitable for a variety of environments, including those with harsh chemical exposure or varying weather conditions.

Another noteworthy characteristic of the HP700 is its modular design, which allows for easy installation and scalability. This feature enables facilities to expand their cooling capabilities as their requirements grow, ensuring long-term operational flexibility. Additionally, SPX Cooling Technologies provides comprehensive support services, including installation assistance and ongoing maintenance, further enhancing the value of the HP700.

In summary, the SPX Cooling Technologies HP700 is a highly efficient, durable, and flexible cooling solution that stands out in the competitive market. Its cutting-edge features, including advanced fan technology, optimized fill design, and energy-efficient operation, make it an excellent choice for a wide range of industrial and commercial cooling applications. With its commitment to quality and performance, SPX Cooling Technologies continues to lead the way in innovative cooling solutions.