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altimore Aircoil Company Series V equipment
has been designed to give long, trouble-free
service when properly installed, operated, and

maintained.  To obtain optimum performance and
maximum service life, it is important that a program of
regular inspection and maintenance be developed and
carried out.  This bulletin is published as a guide to
establishing such a program.

Included in the bulletin are the recommended services
for start-up, operation, and shutdown and the approxi-
mate frequency for each.  Note that the recommen-
dations on frequency of service are minimums and
where operating conditions are severe, the services
should be performed more often. 
For each required
service, follow the procedures outlined under the
“Maintenance Procedures” section of this bulletin.  The
VT1, VTO, VTL, VF1, VFL, VC1, VC2, and VCL models
are illustrated in a cutaway form on page 2, 3, 4 and 5
with the major points of inspection and service identi-
fied.  A copy of the unit certified drawing should also be
available for reference.  If you need additional informa-
tion about the operation or maintenance of this equip-
ment that is not covered in this bulletin, contact the local
B.A.C. Representative.  Their name and telephone
number are on a label at the connection end of the unit.

Series     & Low Profile

Operating and
Maintenance Instructions

COOLING TOWERS

CLOSED CIRCUIT COOLING TOWERS

EVAPORATIVE CONDENSERS

S  

E  

R  

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BULLETIN M310/1-OIA

B

Table of Contents

Page

Construction Details . . . . . . . . . . . . . . . . . . . 

2-5

Operation and Maintenance Schedule . . . . 

6

Operation and Maintenance . . . . . . . . . . . . 

7

Initial and Seasonal Start-Up . . . . . . . . . . 

7

After 24 Hours . . . . . . . . . . . . . . . . . . . . . 

7

Seasonal Shutdown . . . . . . . . . . . . . . . . . 

7

Maintenance Procedures . . . . . . . . . . . . . . . 

8

Cold Water Basin . . . . . . . . . . . . . . . . . . . 

8

Make-Up Valve . . . . . . . . . . . . . . . . . . . . . 

8

Fan Shaft Bearings. . . . . . . . . . . . . . . . . . 

9

Fan Motor Bearings . . . . . . . . . . . . . . . . . 

10

Locking Collars . . . . . . . . . . . . . . . . . . . . 

10

Adjustable Motor Base. . . . . . . . . . . . . . . 

10

Fan Belt Adjustment . . . . . . . . . . . . . . . . . 

11

Fan Drives . . . . . . . . . . . . . . . . . . . . . . . . 

11

Spray Nozzles and
Heat Transfer Section . . . . . . . . . . . . . . . . 

11

Corrosion Protection. . . . . . . . . . . . . . . . . 

12

Cold Weather Operation . . . . . . . . . . . . . . . 

12

Water Treatment . . . . . . . . . . . . . . . . . . . . . . 

14

Corrosion & Scale Control . . . . . . . . . . . . 

14

Biological Control . . . . . . . . . . . . . . . . . . . 

15

Factory Authorized Parts . . . . . . . . . . . . . . . 

15

®

Baltimore Aircoil

Summary of Contents for V Series

Page 1: ...inspection and service identi fied A copy of the unit certified drawing should also be available for reference If you need additional informa tion about the operation or maintenance of this equip men...

Page 2: ...87 Baltimore Aircoil Company 2 Basin Section CASING WET DECK SURFACE SPRAY NOZZLES SPRAY BRANCHES SPRAY HEADER ELIMINATORS FAN DISCHARGE COWLS HEAVY DUTY CONSTR WATER MAKE UP VALVE ADJUSTABLE FLOAT AC...

Page 3: ...CONDENSERS Heat Transfer Coil Section Basin Section 3 CASING COIL SPRAY NOZZLES SPRAY NOZZLES ELIMINATORS FAN DISCHARGE COWL WATER MAKE UP VALVE ASSEMBLY ADJUSTABLE FLOAT ACCESS DOOR STRAINER WATER P...

Page 4: ...D BASIN SECTION FOR VC2 319 1774 PROTECTION FROM MOVING PARTS TWO STAGE AXIAL FLOW FAN FAN SCREEN FAN SHAFT FAN BALL BEARING FAN DRIVES FAN MOTOR WATER MAKE UP VALVE ASSEMBLY STRAINER WATER BLEED SPRA...

Page 5: ...EVAPORATIVE CONDENSERS ELIMINATORS WATER DISTRIBUTION SYSTEM AIR INLET RING FAN SHAFT AND BEARING FAN FAN MOTOR STRAINER ASSEMBLY WATER MAKEUP VALVE WET DECK SURFACE SPRAY NOZZLES ELIMINATORS COIL FA...

Page 6: ...the protection of authorized ser vice and maintenance personnel each fan and pump motor associated with this equipment must be installed with a lockable disconnect switch located within sight of the c...

Page 7: ...essure greater than 10 0 psig may cause damage to the distribution system 12 Inspect the spray nozzles and heat transfer section 13 Start the fan and check for the proper rotation as indi cated by the...

Page 8: ...e or for remote sump application It is located inside the unit cold water basin within easy reach from the access door at the connection end of each unit The standard make up assembly see Figure 1 con...

Page 9: ...2 each equipped with a lubrication fitting and locking collar Models VTO 65 to 116 VF1 027 VF1 036 and VC1 72 thru 135 also have a sleeve bearing see Figure 3 located midway on the shaft The fan shaf...

Page 10: ...tion while holding the shaft 3 Retighten the set screw ADJUSTABLE MOTOR BASE The motor base slides and adjusting screw See Figure 5 should be coated twice a year using a good quality corro sion inhibi...

Page 11: ...ct all four points as indicated If realignment is nec essary loosen the motor sheave and align it with the fan sheave Allow approximately 1 4 for draw up as the motor sheave is pulled tight on the bus...

Page 12: ...ich do not require extraordinary corrosion protection can be touched up with a repair kit B A C Part No 16 133P In the unlikely event that the damage is more extensive than simple scratches or dents c...

Page 13: ...ntrol to determine whether any critical speeds may be encountered and if any motor modifi cations may be required Recommended Operating Speeds For optimum system performance and equipment longevity fa...

Page 14: ...tment CORROSION AND SCALE CONTROL In Evaporative Cooling Products cooling is accomplished by the evaporation of a portion of the process water as it flows through the unit As this water evaporates the...

Page 15: ...trations of iodine through the make up water line the IOBIO Control automatically controls unwanted microbiological contami nants in the open water system Contact your local B A C Representative for m...

Page 16: ...ltimore Aircoil P O Box 7322 Baltimore Maryland 21227 410 799 6200 Fax 410 799 6416 www BaltimoreAircoil com email info BaltimoreAircoil com SEN 10M 09 00 Printed on Recycled Paper Printed in the U S...

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