SPX Cooling Technologies F400 manuale d’uso

/ Mar le y Class F40 0 Cooling T ower / User Manual 93-1288A[...]

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 representative. Al- ways include your tower serial number when writing for information or ordering parts. Look for this number on the sidewall casin[...]

3 Before Start-up Among other sources, outbreaks of Legionnaires’ disease have re- portedly 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 r[...]

4 The oil level placard must be adjusted so that its “full” mark is at the same elevation as the “full” mark on the side of the Gear educer case. Check oil lines to be sure there are no leaks. See Geareducer User Manual for oil filling procedur e and list of recommended lubricants. 5–Rotate fan by hand to be sure of free rotation and amp[...]

5 TOWER PERFORMANCE –Keep the cooling tower clean and water dis- tribution uniform to obtain continued maximum cooling capacity . The capacity of a cooling tower to cool water to a given cold water tem- perature varies with the wet-bulb temperature and the heat load applied to the cooling tower . As the wet-bulb temperature drops, the cold water [...]

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

7 least tower maintenance. See Cooling T ower Inspection Check List in this manual. Keep a continuous lubrication and maintenance r ecord for each cooling tower . HOT W A TER 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, elim[...]

8 W ater T reatment BLOWDOWN –Blowdown, or bleed-of f, is the continuous r emoval 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 requir ed depends upon the cool- ing range (the differ ence between the hot and[...]

9 compounds which contain 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 fr equently as needed to control the slime and algae. Chlorine and chlorine containing compounds should be added carefully since very[...]

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class F400[...]

12 Spare Parts SPX Cooling T echnologies manufactur es and maintains a stock of re- placement parts for all cooling tower mechanical equipment. Shipment of these parts ar e normally made within ten days after an order is received. If emer gency service is necessary , contact the local Marley representative for assistance. T o prevent prolonged shut[...]

13 Geareducer (shutdown for 3 months or mor e). 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. Drain the oil and[...]

14 T r oubleshooting Remedy 1. Check power at starter . Correct any bad connections be- tween the control apparatus and the motor . 2. Check starter contacts and control circuit. Reset overloads, close contacts, reset tripped switches or r eplace failed con- trol switches. 3. If power is not on all leads at starter make sure overload and short circ[...]

15 Ladders, Stairways, Walkways, Handrails, Covers, Decks and Access Doors Davits, Derricks, and Hoists Inspect for General Condition Semi-annually Semi-annually Inspect and Repair for Safe Use Yearly Inspect and Repair Before Each Use As Required T r oubleshooting Remedy Cause T rouble Wr ong sequence of phases Geareducer bearings Gears L[...]

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 Intermittent Seasonal Design Conditions GPM HW °F CW °F WB °F Number of Fan Cells Structure Casing Material Structural Material Fan Deck Material Stairway? Material Ladder? Material H[...]

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

7 401 WEST 129 STRE ET | O VE R LAN D P AR K, KANSAS 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[...]