SPX Cooling Technologies MHF702, MHF705 user manual Fluid Cooler Cleaning, Blowdown

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Maintenance

Fluid Cooler Cleaning:

Any evaporative-type fluid cooler must be thoroughly cleaned on a Warningregular basis to minimize the growth of bacteria, including Legionella Pneumophila, to avoid the risk of sickness or death. Service personnel must wear proper personal protective equipment during decontami- nation. Do NOT attempt any service unless the fan motor is locked

out.

Operators of evaporative cooling equipment, such as closed circuit cool- ing towers, should follow maintenance programs which will reduce to an absolute minimum the opportunity for bacteriological contamination. Public Health Service officials have recommended that “good housekeeping” procedures be followed, such as: regular inspections for concentrations of dirt, scale, and algae; periodic flushing and cleaning; and the following of a complete water treatment program including biocidal treatment.

The visual inspection should take place at least once a week during the operating season. The periodic flushing and cleaning should be done before and after each cooling season, but in any event at least twice a year. The louvers, drift eliminators, easily accessible fill surfaces and the coil should be flushed by use of a moderate-pressure water nozzle, being careful not to cause physical damage. A reliable water treatment program should be installed and maintained. Filtration devices may be employed to reduce the suspended solids concentrations, thus increasing the ef- fectiveness of the water treatment program. See Fluid Cooler Startup instructions on page 13.

Blowdown:

A fluid cooler cools water by continuously causing a portion of it to evaporate. Although the water lost by evaporation is replenished by the makeup system, it exits the tower as pure water—leaving behind its burden of dissolved solids to concentrate in the remaining water. Given no means of control, this increasing concentration of contaminants can reach a very high level.

In order to achieve water quality which is acceptable to the fluid cooler, the selected water treatment company must work from a relatively constant level of concentrations. This stabilization of contaminant concentrations is usually accomplished by blowdown, which is the constant discharge of a portion of the circulating water to waste. As a rule, acceptable levels on which to base a treatment schedule will be in the range of 2-4 con- centrations. The following table shows the minimum amount of blowdown

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Contents Marley MH Fluid Cooler Page Contents Preparation Safety FirstFluid Cooler Location Tower Shipment InstallationReceiving Fluid Cooler Hoisting Fluid CoolerFluid Cooler Installation When using a starter Motor WiringWhen using a VFD When using a two-speedstarterInstallation Mechanical Equipment Installation Operation Fluid Cooler Start-UpWater System Operation General Fluid Cooler OperationFan acceleration time of 30 seconds per hour Wintertime OperationOperation Protection Against Coil Freezing Intermittent Wintertime OperationModel Coil Volume Maintenance Water Treatment and BlowdownMaintaining Water Quality Blowdown Fluid Cooler CleaningBelt Tensioning Jacking Screws Sheave Alignment Straight EdgeBushing Fastener Torque Values Fluid Cooler MaintenanceMaintenance Further instructions Motor Relubrication InstructionsSeasonal Shutdown Instructions Prolonged Shutdown SPX Cooling Technologies Services Maintenance Schedule Trouble Cause Remedy TroubleshootingTroubleshooting Additional Information Page SeaM05-116E

MHF702, MHF705 specifications

SPX Cooling Technologies has established itself as a leader in innovative cooling solutions, with the MHF705 and MHF702 units being prime examples of their commitment to efficiency and performance. These models are designed specifically for cooling processes in various industrial applications, providing reliable operation while minimizing energy consumption.

The MHF705 and MHF702 units are both equipped with advanced features that enhance their operational efficiency. One of the standout characteristics is their modular design, which allows for easy customization and scalability according to the system requirements. This flexibility makes them suitable for a wide range of applications, from HVAC systems to industrial cooling processes.

In terms of technology, both units utilize SPX’s proprietary air distribution system that optimizes airflow patterns within the unit. This ensures uniform cooling and reduces hot spots, contributing to enhanced overall performance. Additionally, the MHF series incorporates high-efficiency fans designed to reduce energy consumption while maximizing cooling output. These fans not only operate quietly but also have extended lifespans, reducing the need for frequent replacements.

Another significant feature of the MHF705 and MHF702 models is their robust construction. With materials designed to withstand harsh environmental conditions, including corrosion-resistant coatings, these units promise longevity and durability. This resilience is crucial for industries where reliability and minimal downtime are paramount.

The MHF series also excels in terms of maintainability. Features such as easily accessible components and modular serviceability make routine maintenance straightforward, which helps in limiting operational interruptions. Additionally, the units are designed with energy efficiency in mind, complying with various environmental standards, which reflects SPX's commitment to sustainability.

Both models also benefit from advanced control technologies, allowing for seamless integration with existing systems. Users can monitor and adjust settings easily via a user-friendly interface, ensuring optimal performance tailored to specific cooling demands.

In summary, SPX Cooling Technologies’ MHF705 and MHF702 units represent the pinnacle of modern cooling technology. With their advanced features, scalable design, high durability, and energy-efficient operation, these cooling solutions stand out as ideal choices for a diverse range of industrial applications, ensuring that businesses can rely on them for efficient and dependable cooling performance.
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