Intermittent Operation

▲Caution

Freezing Weather Operation

•Under extended extreme cold conditions, it may be necessary to operate the fan in reverse. This forces warm air out through the air inlets, melt- ing any accumulated ice. Reversal may be at either full or half speed; however, full speed is recommended if adequate heat load is available. Reverse operation of the fan should be avoided, where possible, and should not exceed 15 to 20 minutes.

Reverse operation of fans for prolonged periods during subfreezing weather can cause severe damage to fans and fan cylinders. Ice can accumulate inside fan cylinders at fan blade plane of rotation and fan blade tips will eventually strike this ring of ice, damaging the fan blades or cylinder. Ice can also accumulate on fan blades and be thrown off, damaging fan cylinder or blades. Reverse opera- tion of fans with adjacent fans not operating increases probability of icing. The low discharge velocity of moist air from fan cylinders in which fans are not in operation can result in moisture-laden air being pulled into the adjacent cylinder in which the fan is operating in reverse, increasing this ice buildup. Therefore, fans each side of the one operating in reverse must be operated in forward rotation at full or half speed, or all fans must be operated in reverse. Allow a minimum of 10 minutes delay between reverse operation and forward operation during subfreezing weather to permit ice to dissipate from fan blades and fan cylinders.

•With no heat load on the circulating water, icing cannot be controlled effectively by air control alone during freezing weather. Towers must not be operated with reduced water rate and/or no heat load during freez- ing weather. If a bypass directly into the cold water basin is used, all water must be bypassed. Water flow over the tower must never be modulated during freezing weather.

See Fan Drive on pages 9 and 10 for fan speed change and reversing precautions.

When the unit is operated intermittently during winter weather, it is necessary that the water be drained from the tower piping to insure protection against freezing and possible rupture.

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.