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BAC 31056C Скачать руководство пользователя страница 33

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31

6

SERIES 3000 COOLING TOWER

Operation Considerations for

Accessories

Basin Heater (Optional)

One or more electric immersion heaters prevent the
cold water basin from completely freezing over and
damaging the unit during shutdown or standby. The
heaters are sized for the specific unit. The heating
element has an enclosure that is suitable for outdoor
use. Annually, inspect the basin heater prior to the
risk of reaching freezing operating conditions.

Operation

Ensure that the heating element is completely
submerged before energizing the main disconnect.
For installations that have a BAC Controls Enclosure,
please consult the submittal package provided with
the unit and contact your local BAC Representative
for support. For installations that use a stand alone
BAC heater control panel, see below.

ATTENTION:

The basin heater is not

designed to prevent icing during
unit operation.

Figure 8.

Basin Heater

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Содержание 31056C

Страница 1: ...OPERATION MAINTENANCE MANUAL Series 3000 Cooling Tower...

Страница 2: ...and check unit for unusual noise or vibration Inspect cold and hot water basins Flush water distribution system Inspect spray nozzles Drain basin and piping Inspect air intake louvers Combined inlet s...

Страница 3: ...Requirements 24 Passivation 25 Long Term Care of Stainless Steel PART 4 Bleed Rate 26 Bleed Rate PART 5 Cold Weather Operation 28 Inspection Maintenance 28 Fan Section Icing Protection 29 Basin Water...

Страница 4: ...ng machinery are potential hazards particularly for those not familiar with their design construction and operation Accordingly use appropriate lockout procedures Adequate safeguards including the use...

Страница 5: ...It is important to rinse the surface with warm water and wipe with a dry cloth after cleaning Neglected damaged areas on the Whisper Quiet Fan can result in the attack of the glass fiber layers a pro...

Страница 6: ...g weight from the unit Verify the fan and system pump motors are disconnected locked out and tagged out BALTIDRIVE Power Train Hot Water Basin and Cover Cold Water Basin Fan Deck Air Intake Louvers Fa...

Страница 7: ...see Figures 4a and 4b on page 12 and the fan shaft bearings see page 17 At initial start up bearings are factory lubricated prior to shipment However if the unit has been idle for more than three mon...

Страница 8: ...fan cowl Run the fan in manual mode for several minutes to check for any unusual noise or vibrations For the BALTIGUARD Fan System BALTIGUARD PLUS Fan System or 2 speed motors check that the starter i...

Страница 9: ...rage Spray coat electrical component housings if supplied with a suitable protective coating such as Cosmoline Weathershed and individually cover them with plastic taking care to leave openings for fr...

Страница 10: ...blades are tight and that there is no obvious corrosion between the hub and the fan blade Inspect the rust preventative coating on all motor external machined surfaces including shaft extensions mont...

Страница 11: ...31186C 19 1 4 1 9 3 4 3473C 3501C 14 1 4 8 3 4 31130C 31212C 19 7 8 1 9 3 4 3552C 3604C 3648C 3672C 15 3 4 9 3 4 31213C 31301C 20 1 2 1 9 3 4 3728C 3781C 3828C 3871C 18 1 2 9 3 4 The operating water l...

Страница 12: ...an blades for looseness first by twisting the blade by hand and then by moving the blade tip up and down There should be no play or slippage Inspect each blade for excessive scale build up that could...

Страница 13: ...l position for several minutes and check for any unusual noises or vibration Fan Drive System BALTIDRIVE Power Train BALTIGUARD and BALTIGUARD PLUS Fan System The BALTIDRIVE Power Train consists of a...

Страница 14: ...rew Turn the motor base adjusting screw clockwise to tension the belt or counterclockwise to relieve belt tension During adjustment of the belt tension rotate the drives several times by hand to evenl...

Страница 15: ...lug Refill the gear drive through the oil fill elbow with the recommended type and amount of lubricant Table 3 page 15 Refer to Figure 5 for locations of these components Inspection Maintenance Mainta...

Страница 16: ...n the outside of the gear drive at least quarterly Prolonged Shutdown Follow the procedures below when a gear drive will not be used for a prolonged period of time including seasonal shutdown Drain al...

Страница 17: ...ceeds 180 F 82 C or the gear 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...

Страница 18: ...1213C 75 155 31301C 100 175 Table 4 Gear Model Unit for Standard Fans NOTE For projects with whisper quiet fans please contact your local BAC Representative Table 5 Gear Model Unit for Low Sound Fans...

Страница 19: ...port the fan shaft Each bearing is equipped with a lubrication fitting and a slinger locking collar to keep out moisture Inspection Maintenance Only lubricate the bearings with a manual grease gun or...

Страница 20: ...age or downtime Heat Transfer Section Fill Drift Eliminator The Series 3000 has PVC fill with integral drift eliminators Inspection Maintenance Inspect and clean the fill with the integral eliminators...

Страница 21: ...he hot water basin covers are removed the nozzles may be cleaned If access to the nozzles under the pre distribution chamber is required remove the hardware that fastens the tabbed baffles then remove...

Страница 22: ...oat in order to attain the recommended operating level Closely monitor the water level in the cold water basin and adjust the level if necessary during the first 24 hours of operation Operating at the...

Страница 23: ...uses leaking tank obstructed fill defective valve or reduced flow rate Three flashes and off for 5 seconds Indicates shorted probes or high conductive water The unit will continue to operate but will...

Страница 24: ...g panels for accumulation of dirt and clean them with soap and water as necessary TriArmor Corrosion Protection System Inspect components protected with the TriArmor Corrosion Protection System for si...

Страница 25: ...rs are necessary which raise the allowable level of dissolved solids without the risk of scale and corrosion In cases where bleed blowdown alone is being employed for corrosion and scale control witho...

Страница 26: ...referred injection point for chemical scale and corrosion inhibitors is on the discharge side of the system circulating pump s These chemicals should not be batch fed directly into the unit s cold wat...

Страница 27: ...maintain the overall aesthetics of the stainless steel It is fairly simple to clean most contaminants off the surface of stainless steel Most dirt and soil can be cleaned with a clean cloth warm water...

Страница 28: ...ount of recirculating water from the system This controls the cycles of concentration to maintain the quality of the recirculating water within the guidelines given in Table 3 on page 15 Replenish the...

Страница 29: ...GPM Therefore in this case we must bleed approximately 1 75 USGPM to limit the concentration of impurities This example focuses on a single parameter chloride concentration of water only The bleed rat...

Страница 30: ...n Section Icing Protection There are two basic operational methods which can be used to provide the system s required cooling temperature setting and fan control The method of control employed on a gi...

Страница 31: ...protection is a remote sump located in a heated indoor space When the circulating pump stops the water in the connecting piping will drain by gravity to this indoor sump Basin Heaters On applications...

Страница 32: ...the 1 2 drain connection of the EASY CONNECT Piping Arrangement Wire the valve in the pump circuit so the valve closes when the pump is energized Select the solenoid valve to operate with a minimum p...

Страница 33: ...e for outdoor use Annually inspect the basin heater prior to the risk of reaching freezing operating conditions Operation Ensure that the heating element is completely submerged before energizing the...

Страница 34: ...e connection will reset the output to non alarm state Electrical Reset and Start up Lockout Optional 1 If rated voltage is continuously applied to the reset circuit at unit start up the reset solenoid...

Страница 35: ...ture low level control and isolate them Install the 1 5K ohm test resistor supplied with the heater control panel in bag on outside of cover across terminals T1 and T2 Install the heater control panel...

Страница 36: ...ination Series TL Solitech CT N C NO NC T1 T2 G1 G2 Shielded Cable Assembly Sensor Probe Cord G2 G1 T2 T1 SH No 1 Heater 40 24 16 12 8 10 12 14 Size Amps Wire Total Wire Table L1 L2 L3 Switch Supplied...

Страница 37: ...ich resonates with the gear drive system may result in torsional vibrations which can damage system components The most common indicator of torsional vibration is an unusual rumbling or grinding noise...

Страница 38: ...ded by others to the vibration analyzer 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...

Страница 39: ...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 levels can be monitored yearly a...

Страница 40: ...ket 150 lb flange weld any piping to the flange prior to installation Vulkem caulk Gasket for the outside of the cold water basin Table 6 Supplies for Installing Field Connections Figure 12 Scored Tri...

Страница 41: ...nit and perform as original equipment BAC is proud to introduce Cooling Tower World the only place to purchase BAC Factory Authorized Parts online All Cooling Tower Parts are shipped second day and ca...

Страница 42: ...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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