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10

COMPREHENSIVE MAINTENANCE

In order to ensure maximum efficiency and minimum downtime of
your evaporative cooling system, it is recommended to establish
and execute a programme of preventive maintenance. Your local
BAC Balticare representative will assist you in establishing and
implementing such programme. The preventive maintenance
programme must not only avoid that excessive downtime occurs
under unforeseen and unwanted conditions, but must also ensure
that factory authorized replacement parts are used, which are
designed to fit and for their purpose carry the full factory warranty. 
Factory authorized replacement parts are available normally within
four  days  after  receipt  of  an  order.  In  emergency  cases  shipment
can be usually made within 24 hours. To order factory authorized
parts, contact your local BAC representative. Be sure you include the
unit serial number when ordering any parts.
To facilitate servicing of the equipment, it is suggested that the
following parts be carried on hand:

- Make-up float ball (if applicable)
- Valve seal for water make-up valve
- Fan shaft bearings
- Spray nozzles and grommets
- Spray distribution branch grommets
- Set  of  belts

Insist on factory authorised parts to avoid loss of efficiency or an
operational risk, which may occur when non authorised parts are
used.

About Comprehensive Maintenance

Содержание VCL

Страница 1: ...a guide to achieve these goals In addition to establishing the operating plan and the cooling system logbook it is recommended to conduct a cooling system risk analysis preferably by an independent third party For the cooling system scale corrosion and biological control must be established and initiated when the system is first filled with water and administered on a regular basis thereafter in a...

Страница 2: ...2 Water Distribution Section 3 High Efficiency Drift Eliminators 4 Fan 5 Fan shaft and bearing 6 Fan motor 7 Wet Deck Surface 8 Strainer 9 Water Make up Valve 10 Coil VTL Cooling Towers VFL Closed Circuit Cooling Towers VCL Condensers ...

Страница 3: ...G TOWERS VTL Maximum inlet pressure 0 5 bar Water inlet temperature max 55 C std fill or 65 C high temperature option For circulating water quality compatible with construction materials refer to section WATER CARE on page 4 Note Actual spray pressure is indicated on technical data sheet supplied with order acknowledgement All piping external to BAC cooling equipment must be supported separately I...

Страница 4: ...on in order to prevent white rust Passivation is the formation of a protective passive carbonate layer on galvanised steel surfaces On newly installed units to provide maximum protection from corrosion one must take special measures to passivate galvanised steel surfaces To ensure proper passivation of the galvanised steel keep the pH of the circulating water between 7 0 to 8 2 for four to eight w...

Страница 5: ...loat Arm Assembly 5 Float Valve To make the initial setting adjust the wing nuts so that the valve is completely closed when the water level in the cold water sump is 13 mm below the overflow level Under normal load conditions this setting should produce the correct operating level At low load conditions the operating level will raise and need be adjusted BLOW DOWN In case of a continuous blow dow...

Страница 6: ...mps must rotate in the correct direction which is indicated by arrows on the equipment Check proper functioning as follows 1 Stop fan s and pump s 2 Turn the fan by hand to ensure rotation without obstruction Remove obstruction if present 3 Start the pump s and check for the proper rotation as indicated by the arrow on the pump cover If rotation is wrong stop pump and correct electrical wiring 4 S...

Страница 7: ...cedure is as follows 1 Shut off the fan s but leave the pump s running 2 Check and adjust spray pressure if required not applicable for coil models with standard pumps 3 Remove the eliminators 4 Check to see if the nozzles are producing the spray pattern shown in figures below 5 Clean water distribution from dirt and debris Ensure spray branches and nozzles are in place and clean Replace damaged o...

Страница 8: ... new grease appears at the seal In particular when extended lubrication lines are fitted ensure that ALL old grease is removed and that new grease is leaving the seal The bearings should be lubricated only with a hand grease gun Do not use high pressure grease guns since they may rupture the bearing seals When lubricating purge the old grease from the bearing by gradually adding grease until a bea...

Страница 9: ...er DISINFECTION Disinfection of your cooling system may be needed in case of high concentration of aerobic bacteria and or Legionella Disinfection is also recommended for evaporative cooling systems with known or suspected high bacteriological levels prior to a cleaning procedure Some local or national guidance also recommends disinfection prior to initial start up after a prolonged shut down afte...

Страница 10: ... the full factory warranty Factory authorized replacement parts are available normally within four days after receipt of an order In emergency cases shipment can be usually made within 24 hours To order factory authorized parts contact your local BAC representative Be sure you include the unit serial number when ordering any parts To facilitate servicing of the equipment it is suggested that the f...

Страница 11: ...quired to ensure a safe and efficient operation of your evaporative cooling products From a full range of risk assessment to selective water treatment training testing record keeping and annual system overview Contact your local BAC representative for further information and specific assistance INTERESTING WEB SITES www BaltimoreAircoil com Balticare More Information ...

Страница 12: ... Every Six Months Annually Shutdown Checks and Adjust ments Cold Water Basin and Strainers X X Operating level and make up X X Blow down X X Sump heater package X X Belt tension X X Drive alignment X X Locking Collar X X Rotation of fan s and pump s X Motor voltage and current X X Unusual noise and or vibration X X Inspections and Monitoring General condition X X Heat transfer section X X Finned d...

Страница 13: ...NOTES 13 ...

Страница 14: ...14 NOTES ...

Страница 15: ...NOTES 15 ...

Страница 16: ...ANCE AND MONITORING PROGRAMME www BaltimoreAircoil com info BaltimoreAircoil co za Baltimore Aircoil Comapy SA Pty Ltd Portland Road Phillipi Cape Town South Africa Baltimore Aircoil Company SA Pty Ltd Model Serial number ...

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