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BAC VX Series, Руководство по эксплуатации и техническому обслуживанию

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VX SERIES

Water Treatment

BLEED OFF

BIOLOGICAL CONTROL

3

Содержание VX Series

Страница 1: ...OPERATION MAINTENANCE MANUAL VX Series...

Страница 2: ...VXT Cooling Towers VXI S Industrial Fluid Coolers VXC S Evaporative Condensers Heat Transfer Section Construction Details...

Страница 3: ...VXT Cooling Towers VXI S Industrial Fluid Coolers and VXC S Evaporative Condensers VXI S VXC S Only VXT suction connection located where pump suction shown above Pan Section...

Страница 4: ...horised service and maintenance personnel install each fan and pump motor associated with this equipment with a lockable disconnect switch located within sight of the cooling tower WARNING Do no servi...

Страница 5: ...he fan to come to a complete stop before restarting the motor CAUTION Do not use oils containing detergents for bearing lubrication Detergent oils will remove the graphite in the bearing sleeve and ca...

Страница 6: ...nd quarterly thereafter Type Service Start Up Monthly Every6 months Shutdown Annually Inspect general condition of the unit Clean Debris from Unit Clean and Flush Sump Clean Sump Strainer Check and ad...

Страница 7: ...Seasonal Shutdown PART 2 Maintenance Procedures 7 Cold Water Sump 7 Make Up Valve 9 Fan Shaft Bearings 9 Ball Bearings 10 Spray Nozzles and Heat Transfer Section 11 Corrosion Protection 12 Locking Col...

Страница 8: ...VX SERIES Operation and Maintenance INITIAL AND SEASONAL START UP AFTER 24 HOURS OPERATION SEASONAL SHUTDOWN 1...

Страница 9: ...tely 10mm below the overflow level 10 On VXI S Industrial Fluid Coolers and VXC S Evaporative Condensers start the pump and check for the proper rotation as indicated by the arrow on the pump cover On...

Страница 10: ...urs of operating under load the following services should be performed 1 Check the unit for any unusual noise or vibration 2 Check the operating water level in the cold water sump Adjust the make up f...

Страница 11: ...d water sump with the sump strainers in place Leave the drain open so rain and melting snow will drain from the unit 3 Clean the sump strainers and re install 4 Lubricate the fan shaft and motor beari...

Страница 12: ...ERIES Maintenance Procedures COLD WATER SUMP MAKE UP VALVE FAN SHAFT BEARINGS BALL BEARINGS SPRAY NOZZLES AND HEAT TRANSFER SECTION CORROSION PROTECTION LOCKING COLLARS ADJUSTABLE MOTOR BASE FAN DRIVE...

Страница 13: ...The strainers can be removed by pulling the handle up and away from the outlet connection NOTE Do not use acid to clean the strainers Make Up Valve A float operated water make up See Figure 1 is furni...

Страница 14: ...pressure and the quantity of water suspended in the tower during pump operation plus that contained in the water distribution system external piping and any heat exchangers which could drain to the t...

Страница 15: ...5 also have intermediate ball bearing s located midway on the shaft Ball Bearings Under normal operating conditions the bearings should be greased every 2 000 operating hours or at least every six mon...

Страница 16: ...lows 1 Shut off the fan but leave the pump running 2 Remove the eliminators 3 Check to see if the nozzles are producing the spray pattern shown in Figure 8 4 Clean any nozzles which are clogged If nec...

Страница 17: ...or of the cooling tower is finished with an etch primer covered with a heavy duty fast drying enamel after fabrication These units should be inspected annually Inspect the inside of the tower for blem...

Страница 18: ...9 1 Loosen the set screw 2 Using a drift pin or centrepunch tap the collar in the hole provided tangentially in the direction of rotation while holding the shaft 3 Retighten the set screw Figure 9 Loc...

Страница 19: ...ent should be checked annually to ensure maximum belt life This can be done by placing a straightedge across both sheaves as shown in Figure 7 When the drive is properly aligned the straightedge will...

Страница 20: ...VX SERIES Water Treatment BLEED OFF BIOLOGICAL CONTROL 3...

Страница 21: ...heat transfer efficiency and increase system operating costs The degree to which dissolved solids and other impurities build up in the recirculating water may be defined as the cycles of concentration...

Страница 22: ...this arrangement the rate of bleed can be adjusted using the valve in the bleed line and measured by filling a container of known volume while noting the time period The bleed rate and water quality...

Страница 23: ...d administered on a regular basis thereafter in accordance with the supplier s instructions Liquid biocides may be added to the basin of the cooling tower in dilute form If a solid form of biocide is...

Страница 24: ...VX SERIES Cold Weather Operation 4...

Страница 25: ...ice formation in heat transfer sections during operation 3 Protection against coil freezing VXI S Industrial Fluid Coolers Cold weather applications should be reviewed with the B A C representative i...

Страница 26: ...VX SERIES Factory Authorised Parts 5...

Страница 27: ...gency situations shipment can usually be made within twenty four hours To order factory authorized parts contact your local Baltimore Aircoil representative Be sure to include the unit serial number w...

Страница 28: ...TOWERS 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 a u 120 Wisemans Ferry Road Somersby NSW 2250 Telephone Australia 1300 134...

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