SPX Cooling Technologies MARLEY CLASS F400 manuale d’uso

/ Marley Class F4 00 Cooling T o wer / User Manual 93-12 88A[...]

2 Contents These instructions assist in obtaining efficient, long life from Marley counterflow cooling towers. Direct questions concerning cooling tower operation and maintenance to your Marley sales represen- tative. Always include your tower serial number when writing for information or ordering parts. L ook for this number on the sidewall casi[...]

3 B efore Start-up Among other sources, outbreaks of L egionnaires’ disease have reportedly been traced to cooling tower s. Maintenance procedures that prevent amplifi cation and dissemination of L egionella and other airborne bacteria should be formulated and implemented B E F OR E systems are operated and continued reqularly thereafter to avoi[...]

4 oil level placard must be adjusted so that its “full” mark is at the s ame 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. 5–Rotate fan by hand to be sure of free rot ation and ample[...]

5 TO WE R PE R F OR MAN CE –K eep the cooling tower clean and water distribu- tion uniform to obtain continued maximum cooling capacity. The capacity of a cooling tower to cool water to a given cold water tempera- ture varies with the wet-bulb temperature and the heat load applied to the cooling tower . As the wet-bulb temperature drops, the cold[...]

6 Caution operation will be enhanced if you read “Operating Cooling T owers in Freezing W eather” Marley T echnical Repor t #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 [...]

7 tenance. See Cooling T ower Inspection Chec k List in this manual. Keep a continuous lubrication and maintenance record for each cooling tower . HOT W A TE R D I STR I B UTI ON SY STE M –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[...]

8 Water T reatment B LO WD OWN –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 c[...]

9 copper are not recommended. Chlorine and chlorine cont aining 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 c hlorine cont aining compounds should be added carefully since very high levels of chlori[...]

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12 Spare Parts SPX Cooling T echnologies manufactures and maint ains 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 assist ance. T o prevent prolonged shutdown[...]

13 Geareducer (shutdown for 3 months or more). 1. If the motors have space heaters, operate mec hanical equipment one hour each month. 2. If the motors do not have space heaters, operate mechanical equipment one hour each week. 3. At st artup, operate mechanical equipment one hour or until oil is warm, then shut the equipment down. Drain the oil an[...]

14 T roubleshooting Remedy 1. Check power at starter . Correct any bad connections between the control apparatus and the motor . 2. Check starter cont acts and control circuit. Reset overloads, close contacts, reset tripped switches or replace failed control switches. 3. If power is not on all leads at st arter make sure overload and short circuit [...]

15 Ladders, Stairways, W alkways, Handrails, Covers, Decks and Access Doors Davits, Derricks, and Hoists Inspect for General Condition Semi-annually Semi-annually Inspect and Repair for Safe Use Y early Inspect and Repair Before Each Use As Required T roubleshooting Remedy Cause T rouble Geareducer bearings Gears Loose bolts and cap screws Unbalanc[...]

16 Inspection and Maintenance Schedule General Recommendations —more frequent inspection and mainte- nance may be desirable D–Daily W–W eekly M–Monthly Q–Quarterly S–Semiannually Y –Y early R–as Required 1. Inspect for clogging M M W W 2. Check for unusual noise or vibration D D D D 3. Inspect keys, keyways and set screws S S S S 4.[...]

17 Inspection and Maintenance Notes[...]

18 Date Inspected Inspected By Owner Location Owner’s T ower Designation T ower Manufacturer Model No. Serial No. Process Served by T ower Operation: Continuous q Intermittent q Seasonal q Design Conditions G PM HW °F CW °F WB °F Number of Fan Cells Structure Casing Material Structural Material Fan Deck Material Stairway? Material Ladder? Mate[...]

19 Mechanical Equipment Gear Drive Units Manufacturer Model Ratio Oil Level: Full q Add Immediately q Low , chec k again soon q Oil Condition: Good q Contains W ater q Contains Met al q Contains Sludge q Oil Used—type Seals Back Lash Fan Shaft End Play Any Unusual Noises? No q Y es q Action Required: Drive Shafts Manufacturer Material Fans Manufa[...]

7 401 WEST 129 STRE ET | OVER LAN D P AR K, KAN SAS 66213 U N ITE D ST A TES | 913 664 7 4 00 | spxcooling@spx.com | spxcooling.com In the interest of technological progress, all products are subject to design and/or material c hange without notice. ©2009 S PX Cooling T echnologies, Inc. | Printed in USA Manual 93-1288A[...]