Maximizing Tower Performance

▲Note

▲Caution

Temperature Control and Energy Management

The wet-bulb temperature of the ambient air varies significantly on a daily basis, and considerably from season to season. As the wet-bulb temperature reduces, the tower becomes capable of producing colder and colder water—or it becomes capable of producing a given cold water temperature at reduced airflow through the tower. These characteristics are the “opposing forces” referred to on page 4.

If your operating system is one which benefits from the coldest possible water; that is, if colder water allows you to increase your output—or allows you to operate your system at significantly lower cost, then continuous full speed operation of the fan(s) may be your best mode of operation.

In this mode of operation, concern for the cold water temperature level would be limited to the potential for the tower to form ice during freezing weather. (See Caution note on page 8 and Freezing Weather Operation on pages 11 and 12.) Although the 70°F (21°C) cold water temperature indicated on page 11 is appropriate for cold weather start-up and operation, acceptable temperatures during full operation in spring, summer, and fall may be appreciably lower, perhaps as low as 50°F (10°C) or less. Refer to

your performance curves for expected tower cold water temperatures at varying flow rates, ranges, and wet bulb temperatures.

Minimizing Tower Energy Use

Most systems gain no operating or production benefits from water tem- peratures below a certain level, and that level is not usually below the aforementioned 70°F (21°C). When a reducing ambient wet-bulb permits the tower to reach that target cold water temperature level, further reduc- tions in the wet-bulb temperature permit manipulation of fan speeds or operation to maintain that temperature level.

Single-speed fans can be cycled on and off for cold water temperature control, with the steps of control depending upon the number of fan cells in the tower. Two-speed motors offer twice as many control steps—with the added bonus that half-speed (which produces half of the normal air- flow through the tower) requires less than 20% of the full-speed power requirement.

Excessive cycling of motors causes overheating of the windings and ultimate failure of the motor. The total amount of starting time (period of high inrush current) should not exceed 30 seconds per hour. On fans 20 feet diameter and smaller, this may allow 4 or 5 starts per hour. On larger fans, 1 or 2 starts per hour may be the limit. Determine the

➠

800 specifications

SPX Cooling Technologies 800 is a highly advanced cooling tower designed for commercial and industrial applications. This state-of-the-art equipment is recognized for its efficiency, reliability, and robust construction. The 800 model is engineered to meet the demanding needs of modern cooling processes, ensuring optimal performance in various settings.

One of the main features of the SPX Cooling Technologies 800 is its innovative design which contributes to superior heat transfer capabilities. The large surface area of the cooling fill maximizes the interaction between air and water, enhancing cooling efficiency while reducing operational costs. This design also supports effective thermal performance with lower water consumption, making it an environmentally friendly option for businesses.

The unit's fan technology is another standout characteristic. The SPX Cooling Technologies 800 employs low-noise, high-efficiency axial fans that optimize airflow while minimizing sound levels. This consideration for noise reduction makes it ideal for installation in noise-sensitive environments without compromising on performance.

Moreover, the 800 model incorporates a corrosion-resistant casing, fabricated from high-quality materials like fiberglass-reinforced plastic. This durability ensures a long service life and reduces the need for frequent maintenance, which in turn lowers operating costs. The design also allows for easy access to internal components, streamlining servicing and inspection processes.

SPX Cooling Technologies has also integrated advanced automation features into the 800 unit. With intelligent control systems, operators can easily monitor and adjust performance parameters remotely. This capability enhances operational efficiency and allows for predictive maintenance, ultimately extending the equipment's lifespan.

This model is suitable for a variety of applications, including industrial manufacturing, commercial HVAC systems, and process cooling. The flexible design options and customizable configurations allow it to meet specific site requirements, ensuring compatibility with existing infrastructure.

In summary, the SPX Cooling Technologies 800 stands out in the market for its combination of high performance, durability, and efficiency. With features such as advanced fan technology, corrosion-resistant materials, and intelligent automation, it offers a comprehensive solution for modern cooling needs, catering to a diverse range of industries while promoting sustainability and cost-effectiveness.