Marley / NC Class Stainless CoolingTower / Specifications: Options

16

 

Specifications

 

Specification Value

in quantities and locations as indicated on the drawings. An overflow and drain connection shall be provided in each cell of the cooling tower. The basin floor shall slope toward the drain to allow complete flush out of debris and silt which may accumulate. Towers of more than one cell shall include stain- less steel flumes for flow and equal- ization between cells. The basin shall be accessible and maintainable while water is circulating.

Fan Motor Variable Speed Drive:

Marley All Weather ACH550 System

6.4Add the following paragraph in the Mechanical Equipment section when VFD is used with customers Building Management System: A complete UL listed Variable Speed Drive system in a IP10 indoor, IP52 indoor or IP14 outdoor enclosure shall be provided. The VFD shall use PWM technology with IGBT switching and integrated bypass design. VFD out put switching shall not cause mechanical issues with gearbox teeth or drive shafts. The VFD shall catch a fan spinning in the reverse direction without tripping. The panel shall include a main disconnect with short circuit protection and external operating handle, lockable in the off position for safety. The VFD system shall receive a speed reference signal from the Building Management System monitoring the tower cold-water temperature. As an option to receiving the speed reference signal from a build- ing management system, the drive must have the capability to receive a 4-20 ma temperature signal from an RTD trans- mitter. The VFD shall have an internal PI regulator to modulate fan speed main- taining set point temperature. The drive's panel display shall be able to display the set-point temperature and cold-water temperature on two separate lines. The bypass shall include a complete mag- netic bypass circuit and with capability to isolate the VFD when in the bypass mode. Transfer to the bypass mode shall be manual in the event of VFD failure. Once the motor is transferred to the by-pass circuit the fan motor will run at constant full speed. The bypass circuit will not modulate ON and OFF based on

Marley Variable Speed Drive systems are designed to combine absolute temperature control with ideal energy management. The cooling tower user selects a cold water temperature and the drive system will vary the fan speed to maintain that temperature. Precise temperature control is accomplished with far less stress to the mechanical equipment compo- nents. The improved energy management provides fast payback to the user.

Page 16
Image 16
SPX Cooling Technologies SS-NC-08A specifications Specifications Specification Value

SS-NC-08A specifications

The SPX Cooling Technologies SS-NC-08A is a cutting-edge, open-circuit cooling tower designed for a variety of industrial applications. Renowned for its efficiency and durability, the SS-NC-08A exemplifies modern engineering innovations, catering to facilities that require reliable temperature regulation while minimizing water usage.

One of the standout features of the SS-NC-08A is its superior thermal performance. Equipped with advanced fill media, this closed cooling tower optimizes heat transfer, allowing for enhanced cooling capacity in a compact footprint. This makes it an excellent choice for industries such as power generation, petrochemical processes, and manufacturing, where maintaining strict temperature control is essential.

In addition to its thermal performance, the SS-NC-08A is designed with energy efficiency in mind. Featuring a low-sound fan design, this unit minimizes operational noise, making it suitable for urban installations or environments where noise pollution is a concern. The axial fan technology used in the SS-NC-08A is not only energy-efficient but also capable of achieving high airflows with lower energy consumption compared to conventional fan designs.

The SS-NC-08A also integrates advanced corrosion-resistant coatings to prolong its lifecycle and minimize maintenance needs. This characteristic is particularly important for facilities operating in harsh environments with exposure to chemicals or brine solutions. The unit's robust construction ensures it can withstand the challenges of demanding applications, reducing downtime and repair costs.

Another key characteristic of the SS-NC-08A is its modular design. This allows for easy installation, maintenance, and scalability. Whether expanding a facility or replacing older systems, the modular nature of the SS-NC-08A streamlines the process. Additionally, it incorporates a simplified water distribution system that enhances water flow and distribution across the fill.

In conclusion, the SPX Cooling Technologies SS-NC-08A cooling tower stands as a reliable, efficient, and durable solution for various industrial cooling needs. With its advanced thermal performance, energy efficiency, corrosion resistance, and modular design, it addresses the requirements of today’s modern industries, ensuring optimal performance and longevity. This makes it an excellent investment for organizations aiming to maintain efficient operations while adhering to environmental sustainability goals.