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Summary of Contents for Marley MARLEY CLASS F400
- Page 1 Marley Class F400 Cooling Tower User Manual 93-1288A...
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Page 2: Table Of Contents
Warning Caution Note Note Contents The following defined terms are used throughout this manual to bring attention to the presence of hazards of various risk levels, or to important information concerning the life of the product. Indicates presence of a hazard which can cause severe personal injury, death or substantial property damage if ignored. -
Page 3: Before Startup
Warning Note Before Start-up Among other sources, outbreaks of Legionnaires’ disease have reportedly been traced to cooling towers. Maintenance procedures that prevent amplification and dissemination of Legionella and other airborne bacteria should be formulated and implemented BEFORE systems are operated and continued reqularly thereafter to avoid the risk of sickness or death CLEANING–New installations should be cleaned and treated with biocides by a water treatment expert before startup. -
Page 4: Starting Procedure
Note Note Caution oil level placard must be adjusted so that its “full” mark is at the same eleva- tion as the “full” mark on the side of the Geareducer case. Check oil lines to be sure there are no leaks. See Geareducer User Manual for oil filling procedure and list of recommended lubricants. - Page 5 If a greatly reduced water flow rate is desired, it may be advisable to change nozzle sizes to obtain the desired pressure and maintain proper water distribution. An SPX Cooling Technologies engineer can advise minimum and maximum flow rates for even distribution.
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Page 6: Tower Maintenance
Caution Warning operation will be enhanced if you read “Operating Cooling Towers in Freezing Weather” Marley Technical Report #H-003. Ice forming characteristics on any given cooling tower will vary, depending on velocity and direction of wind, circulating water rate, and heat load. Excessive ice formation may be controlled by regulating air and water flow through the tower by one or more of the following procedures: 1–Shut the fan down. - Page 7 tenance. See Cooling Tower Inspection Check List in this manual. Keep a continuous lubrication and maintenance record for each cooling tower. HOT WATER DISTRIBUTION SYSTEM–Keep the circulating water and distribution system (piping and nozzles) clean and free of dirt, algae, and scale. Algae and scale may clog nozzles, eliminators, fill, and piping, and may collect on the equipment served thus reducing its performance.
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Page 8: Water Treatment
Water Treatment BLOWDOWN–Blowdown, or bleed-off, is the continuous removal of a portion of the water from the circulating system. Blowdown is used to prevent the dissolved solids from concentrating to the point where they will form scale. The amount of blowdown required depends upon the cooling range (the dif- ference between the hot and cold water temperatures) and the composition of the make-up water (water added to the system to compensate for losses by blowdown, evaporation and drift). - Page 9 Warning copper are not recommended. Chlorine and chlorine containing compounds are effective algaecides and slimicides. If used, chlorine should be added as intermittent (or shock) treatment only as frequently as needed to control the slime and algae. Chlorine and chlorine containing compounds should be added carefully since very high levels of chlorine may occur at or near the point of entry into the circulating water system.
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Page 12: Spare Parts
Spare Parts SPX Cooling Technologies manufactures and maintains a stock of replacement parts for all cooling tower mechanical equipment. Shipment of these parts are normally made within ten days after an order is received. If emergency service is necessary, contact the local Marley representative for assistance. -
Page 13: Tower Cleaning
Warning Geareducer (shutdown for 3 months or more). 1. If the motors have space heaters, operate mechanical equipment one hour each month. 2. If the motors do not have space heaters, operate mechanical equipment one hour each week. 3. At startup, operate mechanical equipment one hour or until oil is warm, then shut the equipment down. -
Page 14: Troubleshooting
Troubleshooting Trouble Cause Motor Will Not Start Power not available at motor terminals Wrong connections Low voltage Open circuit in motor winding Motor or fan drive stuck Rotor defective Unusual Motor Noise Motor running single-phase Motor leads connected incorrectly Ball bearings Electrical unbalance Air gap not uniform Rotor unbalance... -
Page 15: Safety
Troubleshooting Trouble Cause Wrong Rotation (Motor) Geareducer bearings Geareducer Noise Gears Loose bolts and cap screws Unusual Fan Drive Vibration Unbalanced drive shaft or worn couplings Worn Geareducer bearings Unbalanced motor Bent Geareducer shaft Loose fan hub cover Fan Noise Blade rubbing inside of fan cylinder Loose bolts in blade clamps SAFETY FIRST–The tower has been designed to provide a safe working environment while either operating or shut... -
Page 16: Inspection And Maintenance Schedule
Inspection and Maintenance Schedule General Recommendations —more frequent inspection and mainte- nance may be desirable 1. Inspect for clogging 2. Check for unusual noise or vibration 3. Inspect keys, keyways and set screws 4. Make sure vents are open 5. Lubricate (grease) 6. - Page 17 Inspection and Maintenance Notes...
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Page 18: Inspection Checklist
Inspection Checklist Date Inspected Owner Owner’s Tower Designation Tower Manufacturer Process Served by Tower Design Conditions Number of Fan Cells Condition: 1—Good 2—Keep an eye on it 3—Needs immediate attention Structure Casing Material Structural Material Fan Deck Material Stairway? Material Ladder? Material Handrails? -
Page 19: Mechanical Equipment
Inspection Checklist Condition: 1—Good 2—Keep an eye on it 3—Needs immediate attention Mechanical Equipment Gear Drive Units Manufacturer Oil Level: Full Add Immediately Oil Condition: Good Contains Water Oil Used—type Seals Back Lash Fan Shaft End Play Any Unusual Noises? Drive Shafts Manufacturer Fans... - Page 20 7401 WEST 129 STREET OVERLAND PARK, KANSAS 66213 UNITED STATES 913 664 7400 spxcooling@spx.com In the interest of technological progress, all products are subject to design and/or material change without notice. ©2009 SPX Cooling Technologies, Inc. | Printed in USA Manual 93-1288A...
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