SPX Cooling Technologies MHF702, MHF705 user manual Operation, Fluid Cooler Start-Up, Water System

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Operation

Fluid Cooler Start-Up

Among other sources, outbreaks of Legionnaires’ Disease have report- Warningedly been traced to cooling towers and fluid coolers. Maintenance and

water treatment procedures that prevent amplification and dissemina- tion of Legionella and other airborne bacteria should be formulated and implemented BEFORE systems are operated and continued regularly thereafter to avoid the risk of sickness or death.

Water System:

1.New installations should be cleaned and treated with biocides by a water treatment expert before startup.

2.Remove any and all accumulated debris from fluid cooler. Pay par- ticular attention to inside areas of collection water basin, distribution water basins, louvers and drift eliminators. Make sure that cold water suction screens are clear and properly installed.

3.Fill the water system to an approximate depth of 8″ (203 mm) in the depressed area of the collection water basin. This is the recommended operating water level. Adjust the float valve so that it is 75% open at that level. Continue filling the system until the water reaches a level approximately 3 mm below the lip of the overflow.

4.Start your pump(s) and check for proper rotation as indicated by the arrow on the pump cover, observe system operation. A certain amount of “pump-down” of the basin water level will occur before water completes the circuit and begins to fall from the fill in the up- per module. The amount of initial pump-down may be insufficient to cause the float valve to open. However, you can check its operation by pressing down on the operating lever to which the stem of the float valve is attached.

Some trial and error adjustment of the float valve may be required to balance the makeup water with tower operation. Ideally, the float valve setting will be such that no water is wasted through the overflow at pump shutdown. However, the water level after pump start-up must be deep enough to assure positive pump suction.

5.Open the valve on the tower bleed line and adjust bleed to the recom- mended rate. See Water Treatment section on page 20.

6.Continue pump operation for about 15 minutes, after which it is rec- ommended that the water system be drained, flushed and refilled.

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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 Fluid Cooler Start-Up OperationWater System Operation General Fluid Cooler OperationFan acceleration time of 30 seconds per hour Wintertime OperationOperation Protection Against Coil Freezing Intermittent Wintertime OperationModel Coil Volume Water Treatment and Blowdown MaintenanceMaintaining 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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