BAC FXV-0806-12D Series User Manual Download

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OPERATION & MAINTENANCE MANUAL

FXV and FXV3 Closed Circuit Cooling Tower

CXVB and CXVT Evaporative Condenser

Summary of Contents for FXV-0806-12D Series

Page 1: ...OPERATION MAINTENANCE MANUAL FXV and FXV3 Closed Circuit Cooling Tower CXVB and CXVT Evaporative Condenser...

Page 2: ...or Check fan motor for proper rotation Check general condition of the fan Check and unplug fan drain holes hollow blade fans Check fan for uniform pitch Check fan for rotation without obstruction Chec...

Page 3: ...ments 27 Passivation 27 Biological Control 28 Long Term Care of Stainless Steel 29 System Cleaning PART 4 Bleed Rate PART 5 Cold Weather Operation 32 Inspection and Maintenance 32 Fan Section Icing Pr...

Page 4: ...water system must wear respiratory protection equipment approved for such use by governmental occupational safety and health authorities CAUTION The operation maintenance and repair of this equipment...

Page 5: ...neral Maintenance Information Equipment Precautions NOTICE The services required to maintain a piece of evaporative cooling equipment are primarily a function of the quality of the air and water in th...

Page 6: ...vable Drift Eliminators BALTIDRIVE Power Train Prime Surface Coil Suction Strainer Spray Riser Pipe Bleed Valve Spray Pump Access Door Spray Pump Motor Make up Valve Axial Fan s Cold Water Basin Recir...

Page 7: ...or anything unusual such as structural or mechanical component damage Inspect piping and connections Thoroughly inspect the fan s for any mechanical or physical damage At seasonal start up or after pr...

Page 8: ...ing freely Closely monitor water level and adjust as necessary during the first 24 hours of operation Inspect the nozzles and heat transfer section as described in Water Distribution System on Page 22...

Page 9: ...osion Protection on page 25 for more details Lockout the fan motor starting device in the OFF position to ensure personal safety in case of future inspection or service Prolonged Outdoor Storage Stora...

Page 10: ...covered with a loose fitting tarpaulin Do not use plastic plastic film This cover should extend below the motor and be secured however it should not tightly wrap the motor This will allow the captive...

Page 11: ...is obvious corrosion of fan components Loose fan blades could result in fan failure and possible injury or damage Inspect the rust preventative coating on all motor external machined surfaces includi...

Page 12: ...At Overflow Level in At Operating Level in FXV 08xx CXVB xxx 08xx 13 1 2 8 1 4 FXV 12xx CXVB xxx 12xx 14 1 2 8 FXV3 1224 xxx FXV3 1426 xxx CXVT x 1224 x XECXVTx 1224 x CXVT x 2424 x XECXVTx 2424 x 19...

Page 13: ...Tip Clearance Check the clearance between the tip of the blade and the fan cowl The clearance should be within 5 16 to 1 2 for single air intake FXV CXVB units and within 3 8 to 3 4 for dual air inta...

Page 14: ...y adding a VFD to one of the motors Inspection Maintenance These drives require a periodic check of the belt condition and when necessary tension adjustment The recommended service intervals are as fo...

Page 15: ...t tension rotate the drives several times by hand to evenly distribute the tension throughout the belt When the belt is properly tensioned retighten the locking nut on the motor base adjusting screw D...

Page 16: ...voltages and that the voltage at the motor leads is zero before proceeding Failure to comply with this warning may result in severe personal injury or death WARNING The surfaces of motor enclosures ma...

Page 17: ...ogrammed for use with this fan system and has been preprogrammed with parameters specific to your cooling tower Startup must be performed by a service provider that is authorized to startup the ENDURA...

Page 18: ...with the shaft stationary and a warm motor Wipe all dirt from the outside of the grease fills and drains Locate the grease inlet at the top of the bearing hub clean the area and replace the 1 8 pipe...

Page 19: ...ar drive fittings Air Breather Plug Oil Level Sight Gauge Oil Drain Plug Oil Fill Elbow Name Plate Figure 6 Single Reduction Gear Drive Change Interval Initial oil change Replace the original oil afte...

Page 20: ...r rotating parts Improperly adjusted fan blades Operation at the mechanical equipment resonant frequency Installations with 2 speed motors When slowing from high speed allow a minimum 15 second time d...

Page 21: ...r drive is started at an ambient temperature less than 20 F 7 C a synthetic lubricant is recommended When mineral oils are used in operation at ambient temperature less than 20 F 7 C lube oil heaters...

Page 22: ...fficient totally enclosed single speed single winding reversible ball bearing type motor s Inspection and Maintenance Clean the outside of the motor at least quarterly to ensure proper motor cooling A...

Page 23: ...us S3 T100 2 SKF LGHP2 Unocal 76 Unilife Grease Lubricate the bearings as follows Initial Start up Normally no lubrication is required since the bearings have been lubricated at the factory prior to s...

Page 24: ...cleaning and flushing Water Distribution System The spray water is distributed through a corrosion resistant polyvinyl chloride PVC distribution system The drift eliminators are made of PVC which is i...

Page 25: ...so that the make up valve is completely closed when the water level in the cold water basin is at the overflow connection With the design thermal load and the average water pressure 15 to 50 psig at t...

Page 26: ...eset Note No other status codes will be displayed until the dirty probes are cleaned Two flashes and off for 5 seconds Indicates make up valve ran for more than 1 hour The unit will continue to fill w...

Page 27: ...glass Reinforced Polyester FRP Components Series 3000 Cooling Towers are provided with FRP casing panels as standard Inspect the casing panels for accumulation of dirt and clean them with soap and wat...

Page 28: ...se shown in Table 5 Table 5 Quality Guidelines for Circulating Water Property of Water Recommended Levels for Various Materials of Construction Galvanized Steel Thermosetting Hybrid Polymer Type 304 S...

Page 29: ...e deposits form on galvanized steel surfaces after the pH is returned to normal service levels it may be necessary to repeat the passivation process In case the pH can t be kept below 8 2 a secondary...

Page 30: ...h as metal chips Machining or welding galvanized steel at the jobsite may cause debris to impinge itself into the stainless steel These contaminants can deposit on the surface and scratch the passivat...

Page 31: ...to clean condenser water systems through a closed circuit cooling tower The necessary precautions include Limit the duration of the cleaning to one day or at the most two days The temperature of the...

Page 32: ...ation of the same material in the make up water In order to optimize heat transfer efficiency and maximize equipment life bleed or blowdown a small amount of recirculating water from the system This c...

Page 33: ...GPM x R F x 0 001 Q Process Fluid Flow Rate USGPM R Range n Number of Cycles of Concentration CR CM CR Concentration in Recirculating Water CM Concentration in Make up Water Given Closed Circuit Cooli...

Page 34: ...n control and dry operation The method of control employed on a given application depends upon the climatic extremes which are expected the variations in heat load that will be encountered and the com...

Page 35: ...visually inspect the fan blades for ice formation Dry Operation One method to prevent icing is dry operation Dry operation of the evaporative condenser protects fans from ice formation due to mist an...

Page 36: ...he fluid leaving the coil is not less than 50 F 10 C For FXV FXV3 Closed Circuit Cooling Towers with glycol as the heat transfer liquid maintain a minimum heat load so that the temperature of the glyc...

Page 37: ...809x 24T FXV 0809x 30T FXV 0809x 36T FXV 0809x 16Q FXV 0809x 24Q FXV 0809x 32Q 118 700 141 500 163 000 203 100 222 000 239 900 256 800 205 300 233 900 260 400 143 600 207 500 246 200 60 400 59 800 59...

Page 38: ...XV 1218x 36H 331 900 404 200 471 100 567 700 625 000 678 200 728 000 586 700 677 600 760 500 416 900 593 400 716 100 789 300 109 000 106 400 103 900 137 800 134 900 132 300 129 800 145 800 143 000 140...

Page 39: ...solution If the coil is not protected an automatic drain valve and vacuum breaker are recommended to drain the coil if flow stops or the fluid temperature drops below 50 F 10 C when the ambient tempe...

Page 40: ...vel control can only be used with the supplied combination temperature water level sensor probe Please contact your local BAC Representative for replacement parts Stand Alone BAC Heater Control Panel...

Page 41: ...he heater control panel cover Energize the system and listen for the contactor closing Operate the system until the ice is melted around the probe After operation de energize the circuit disconnect th...

Page 42: ...ration A light adjacent to the set point control comes on the instant the measured vibration level exceeds the set point The unit can be periodically calibrated on line by turning the set point contro...

Page 43: ...cy drives VFDs for fan motor control must use inverter duty motors built in compliance with NEMA standard MG 1 Part 31 Operation of the unit at a speed which resonates with components of the drive sys...

Page 44: ...provided by others Be sure to route and fasten the wire so that it will not contact any rotating parts inside the unit when the drive system is operational Get out of the unit and ensure that the driv...

Page 45: ...s peaked and continues to fall record the speed where the value equals 0 35 ips as the upper end of the lockout range Using this data a baseline for vibration history can be developed The vibration le...

Page 46: ...l backing ring gasket to the inside of the cold water basin 6 Position the flange to the outside of the cold water basin 7 Bolt the flange and the stainless steel backing plate together using stainles...

Page 47: ...WERS ICE THERMAL STORAGE EVAPORATIVE CONDENSERS HYBRID PRODUCTS PARTS SERVICES w w w B a l t i m o r e A i r c o i l c o m 7600 Dorsey Run Road Jessup MD 20794 Telephone 410 799 6200 Fax 410 799 6416...

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BAC FXV-0806-12D Series, Operation & Maintenance Manual

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