Specifications (10) V&€ 2 *1k) . -o0 (4.7 ?
Cooling Tower Data Sheet i WED
3 0 2010
HVAC Inc Mike Wondetiv,I,- OFTIGARD
Project: Triangle Pointe Fox Engin 8vinING DIVISION
Equipment Reference:
Product Type: AT- Cooling Tower
Date: 08/23/10 Page: 1
Selection Criteria
Capacity (Tons): 160.00 IBC Design Criteria
Capacity (MBH): 2,400.000 Seismic Design Force (g) 1.00
Fluid: Water Velocity Pressure (psf) up to 60
Flow (GPM): 480.0
Entering Fluid Temp (F): 95.00
Leaving Fluid Temp (F): 85.00
Wet Bulb (F): 72.00
CTI Certified Selection
Qty Model Capacity Percent Capacity
(Tons)
1 AT -19 -28 194.88 121.8
All Weights, Dimensions and Technical Data are Shown per Unit
# Fans: 1 Overall Length: 7' 5.875"
# Fan Motors @ HP: (1) @ 5.00 (460/3/60) Overall Width: 8' 5.500"
# Heaters @ kW: (1) @ 6.00 Overall Height: 10' 8.250"
Air Flow (CFM): 31,300
Inlet Pressure Drop (PSI): 3.2 Operating Weight (Ibs): 5,870 -
Evaporated Water Rate (gpm): 3.8 Shipping Weight (Ibs): 3,450
Heaviest Section (Ibs): 2,280
Options Selected:
IBC Compliant up to 1g
Ladder Extension : 3 foot
Motor Davit with Base
Safety Cage
Safety Cage Extension
Vibration Switch
(2) sets of extra belts
304 Stainless Steel Cold Water Basin
3 -Probe Electronic Water Level Control Package
El. Heaters (OF / -18C ambient) (1) @ 6 KW
External Service Platform with Ladder
Fan Motor: Inverter Duty
iES Version: June 2010
Cooling Tower Data Sheet Page: 2
4
II
Sound Data (Sound Pressure Levels in dB(A))
End Mtr Side End Opp Mtr Side Top
S.P.L. dB(A) at 5' 74 75 74 75 74
S.P.L. dB(A) at 50' 58 59 58 59 63
Note 1: Sound Data shown is for 1 Cell operating at full speed.
Note 2: The use of frequency inverters (Variable Frequency Drives) can increase sound levels.
Note 3: Sound option(s) selected: None
Layout Criteria
Recommended Clearances Around Units (Feet)
From Unit Ends to Wall: 3.00 Between Unit Ends: 2.00
From Sides to Wall: 3.00 Between Unit Sides: 6.00
Refer to the Equipment Layout Manual or contact your Sales Representative for more details on layout criteria.
Shipping Data
Description Domestic Skidded Dimensions (in) Cubic Feet Total Cubic Gross Wt Total Gross
Feet (Ibs) Wt (Ibs)
Section Length Width Height
Basin: 1 96 102 52 295 295 1,170 1,170
Casing: 1 96 102 84 476 476 2,280 2,280
Totals: 2 771 771 3,450 3,450
iES Version: June 2010
fi
UNIT # SCALE DWG. # REV. DATE SERIAL #
COOLING TOWER I AT -19 -28 I 1 T3090824- DRB -ST 1 8/23/2010
NOTES:
1. (M)- FAN MOTOR LOCATION
2. HEAVIEST SECTION IS UPPER SECTION
3. MPT DENOTES MALE PIPE THREAD
FPT DENOTES FEMALE PIPE THREAD `+ ((►►
' l ) ACCESS DOOR
BFW DENOTES BEVELED FOR WEL O = =
4. +UNIT WEIGHT DOES NOT INCLUD'
ACCESSORIES (SEE ACCESSORY D' • pS) '%1 5. MAKE -UP WATER PRESSURE
20 psi MIN [137 kPa], 50 psi MAX [344 kPa] FACE 2 [ 22 83 ] 8" 1 1 � 1
PLAN VIEW `� � ,
Sit", %.* , .
8' -51/2"
[
2578J
FACE 1
2138
[ 543
I imommil
M
I , I 4 1 t Pi I — 1 1 1] [ 5 80 L1 � L L
—
[ [ 2034 ] ` ir •
I//I�.
10' -8 1/4" ‚ID 6 [150] BFW /GVD
8] 3258] A�
� 86 1/2 \oil• ∎∎ i/lf M'
onnp:1, i eppla: [ 2197] l•n�g.4 /511 I► •i•�•i•�•�
• I • � • • • • • • � • • • 2 [50] MPT • i 11••4•�•I•
• • • • •: •:• 48 1/4 MAKE -UP • •• •• ••i • ••� 1 1••• • • • • •• •
2•2•2•2•2• UNIN !•!• [ 1224] ' -••• •••••• /
1 [ 587]
�:LI1
3 [80] FPT 6 [150] BFW _ D
OVERFLOW OUTLET
14 7/8_1 3 [80] FPT
[ 378 [ 5 1 4 - DRAIN
612_
[16 ] 9
3 5/8 _ [ 229 ]
[ 92J 50 3/4
/ F [ 1289 ]
[ 22831 — [ 3/8 8' -5 1/2"
FACE 2 [ 25781
FACE 1
SHIPPING
WEIGHT 3520 Ibs+ [1597] kg+ I OPERATING 5940 Ibs+ [2694; k I HEAVIEST SECTION 2350 Ibs+ [1066] kg+ I NO. OF SHIPPING SECTIONS 2
EVAPCO, INC. swag,..• c ,,
'"`E STEEL SUPPORT CONFIGU' ' - e I UNIT: 8.5x7.5 INDUCED DRAFT TOWERS I DWG. 8 SLIX0908 -DC
b : h 1 2
•
13/16 [51] - yF [51]
[ 21]
C/L OF UNIT LOAD
` \
/ [ 417 8 f
[ 22424 UNIT OUTLINE [ '' 7f t
C/L OF MOUNTING HOLES JJ �`
6
a 1 -
(6)0 3/4" [19mm] � UNIT
MOUNTING HOLES r __ 1_ MOUNTING HOL 4114
13/16 ]
Di
O
[ 21] lil
TYPICAL END ay
PLAN VIEW
NOTES:
1. BEAMS SHOULD BE SIZED IN ACCORDANCE WITH ACCEPTED STRUCTURAL PRACTICES. . 6. ANCHORING ARRANGEMENT SHOWN HAS A MAXIMUM WIND RATING OF 60 PSF [2.87 KPa] ON
MAXIMUM DEFLECTION OF BEAM UNDER UNIT TO BE 1/360 OF UNIT LENGTH NOT TO EXCEED 1/2" [13mm]. CASED VERTICAL SURFACES.
2. DEFLECTION MAY BE CALCULATED BY USING 55% OF THE OPERATING WEIGHT AS 7. THE FACTORY RECOMMENDED STEEL SUPPORT CONFIGURATION IS SHOWN.
A UNIFORM LOAD ON EACH BEAM. SEE CERTIFIED PRINT FOR OPERATING WEIGHT. CONSULT THE FACTORY FOR ALTERNATE SUPPORT CONFIGURATIONS.
3. SUPPORT BEAMS AND ANCHOR HARDWARE ARE TO BE FURNISHED BY OTHERS. 8. UNIT SHOULD BE POSITIONED ON STEEL SUCH THAT THE ANCHORING HARDWARE FULLY
ANCHOR HARDWARE TO BE ASTM -A325 5/8" [16mm] BOLT OR EQUIVALENT. PENETRATES THE BEAM'S FLANGE AND CLEARS THE BEAM'S WEB.
4. BEAMS MUST BE LOCATED UNDER THE FULL LENGTH OF THE PAN SECTION.
5. SUPPORTING BEAM SURFACE MUST BE LEVEL. DO NOT LEVEL THE UNIT BY
PLACING SHIMS BETWEEN THE UNIT MOUNTING FLANGE AND THE SUPPORTING BEAM.
•
EVAPCO, INC1 mete . CO
TITLE EXTERNAL SERVICE PLATFORM UNIT: ALL 8 1/2 X 7 1/2 AT COOLING TOWER UNITS I DWG # PLT30908 -DB
/0711 0E04 �
MODEL # H AT 19 -28, 38, 48 72 1/2 [1841] AT- 19 -58, 68, 88 84 1/2 [2146] ‘v'
AT- 19 -78, 98 96 1/2 [2451]. 'I
�
I IIII �►
[ 11 8 1] [ 93 1/2
r — J L
I
il■ Nom it �.r•a
• r•- 0 ^4 - • - ,� •- •-rrr ▪ � � 1111.. 1111..•• 11 11.... � 1111.... 1111.... 1111.... »11 11.... .4.44• 11 11.... ▪ 11 4111.••.
•.•.•.•.•.•.•.•.•.•.•. ..• n •11.2•.•2•.•.
1 i
1 - -.
[1041] [13 ]
NOTES:
1. LADDER AND PLATFORM SHIP LOOSE. FIELD INSTALLATION BY OTHERS IS REQUIRED.
2. THE BOTTOM OF THE LADDER DOES NOT EXTEND PAST THE BASE OF THE UNIT.
IF THE UNIT IS ELEVATED THEN AN OPTIONAL EXTENDED LADDER PACKAGE
SHOULD BE CONSIDERED. (CONSULT FACTORY)
3. REFER TO RIGGING PACK FOR LADDER AND PLATFORM MOUNTING INSTRUCTIONS.
4. EACH PLATFORM AND LADDER ASSY. WEIGHS 540 LBS. [245KG)
5. FOR STANDARD UNITS, REFER TO UNIT CERTIFIED PRINT FOR PUMP LOCATION(S).
0 0
200LB 400L6 41 1/2 [1054] STANDARD FAN OR LOW SOUND FAN
MAX MAX 68 1/2 [1739] SUPER LOW SOUND FAN OR HOOD OPTION
A Y w i 1 3/80 NUT 3/80 FLATWASHER
0 o A 0 1
1111 O I I I I II I I i l ■I uI
-
3/80 LOCKWASHER
MOUNTING CHANNEL UNIT
(SHIPS LOOSE) MOUNTING
CHANNEL
_ SECTION A -A
ASSEMBLY ARRANGEMENT
8.5 X 7.5 AT2, ATC /W -B (TYPICAL)
NOTES:..
A. MO= MOTOR Md® `K =
+ a
B. DAVIT IS DESIGNED FOR RAISING OR LOWERING EVAPCO � ``"' .44, "'*** -6'
FAN MOTORS OR FANS AND GEARS AS UNIT IS
EQUIPPED. DO NOT USE FOR ANY OTHER PURPOSE.
C. DAVIT IS DESIGNED TO PIVOT FREELY AND CAN BE REMOVABLE DAVIT
REMOVED FROM ITS MOUNTING BASE FOR STORAGE.
D. DIMENSIONS LISTED AS FOLLOWS: ENGLISH [METRIC] MDAAO9O8-DB
IN [mm]
, r
TITLE ELECTRIC WATER LEVEL CONTROL LOCATION I N"IT INDUCED DRAFT TOWER 1 Dwc. # ELT3MWML -DA
LM(l D
BOX SIZE VALVE Y- STRAINER STANPIPE
SELECTED QTY SIZE PART NO. QTY SIZE PART NO. QTY X Y
❑ 2.4Nt 9-12 1 (25) 017- 00153P 1 � 5 J 01 00280P 1 [5081 (218]
❑ 2.41k 14 -21 1 11/2 017- 00154P 1 11/2
017-00281P 1 20 8112
[40) (40) [508) (2181
•
❑ 2.40(24 2 ( 017-00153P 2 [25J 017- 00280P 1 [508] (2 18
11/2
017-00154P 2 11/2
017- 00281P 1 20 81/2
•
ELECTRIC MAKE -UP ❑ 2.41528 -42 2 [40] [40] [508] (216]
VALVE WITH Y- STRAINER ❑ 2.41408(3C) 3 017- 00153P 3 1 017- 00280P 1 20 81/2
[25) [25) [5081 [2181
UPSTREAM OF VALVE 1 vz 1 1n 20 81/2
(SEE CHART FOR SIZES & QTY) ❑ 2.414(42 (3C) 3 [40] 017- 00154P 3 mo) 017- 00281P 1 [508) (216]
❑ 8.5x6 -12 1 [25] 017- 00153P 1 j25J 017- 00280P 1 [) (218
11/2 11n 20 81/2
•_•_•_ • 8.5x14 -21 1
017-00154P 1 017- 00281P 1
• • • •••-•
••� ;:::::::::::::::::::::::°:'. •••••••••• 1 1 20 81/2
• • [40] [40] [508) (218)
• i••••� ❑ 8.5x24 2 017- 00153P 2 017- 00280P 1
•i••: ••••••••••••••. [25) [25] [508) (216]
i •r�•i•••• • • • • • • • • • • • • • • • • • •� 1 • • • • • • • 4 �. 1 1/2 1 112 20 8 V2
, •••••••••••••••••• '• ••••••� • ❑ 8.5x28.42 2 017.00154P 2 017- 00281P 1
• • • • • • • • • • • • • • • • • • • • • • • • • • • 1110..i.,; f40] [40) [508) (216)
,• • • • • • • • • • • •y :. • • • • • • • • • • • • • • • • t !,••••••. 110 ...
• • • • • • • • • • • • • • , • • • • • • • • • • • . 1 1n 1 1/2 20 81/2
:2 :•••••••••••••••.�••••••. ' ❑ 8.5x38.42(3C) 3 [40] 017- 00154P 3 [40] 017- 00281P 1 [508) (216)
.1 [40] i ~ CONN. SIDE 0 12x12,14 1 i 40]
017-00154P 1 X 40] 01 00281P 1 [I ( 218
1
RI ❑ 12x18,20 1 2 017.00155P 1 2 017- 00282P 1 20 81n
[ [ [508) (216]
1 Y ❑ 12x24,28 2 11n 017- 00154P 2 "� 017- 00281P 1 20 81/2
I [40] [40] [508) (216]
❑ 12x36,40 2 017- 00155P 2 [�) 017- 00282P 1 [508 81/2
] 1216]
�— X ❑ 314(12 1 [50]
11/2 017- 00154P 1 112
017-00281P 1 20 81/2
LEVEL PROBE STANDPIPE [ [40) [508] [2161
ASSEMBLY 060- 00027SA ❑ 314(18 1 (0] 017-00155P 1 (�) 017- 00282P 1
[50 8 ) 8
(SEE CHART FOR TY 1 1/2 20 81/2
Q 0 314Q4 2 1 1/z
[40]
017-00154P 2 1401 017- 00281P 1 [508
J [216)
•
END VIEW ❑ 314(38 2 [�] 017- 00155P 2 [50) 017- 00282P 1 [ ] (216)
❑ 6x17 2 1 017 -00153P 2 1 017 -00280P 1 131/2 1/2
[
[25] [25] [343] [216]
❑ 7.5x17 2 1
017 -00153P 2 1 017 -00280P 1 131/2 81/2
[25] _ [25] _ [343] [216]
NOTES:
1. PIPING BY OTHERS.
2. LEVEL PROBE STANDPIPE ASSEMBLY, MAKE -UP VALVE AND Y- STRAINER TO SHIP LOOSE FOR FIELD MOUNTING BY OTHERS.
3. SEE CERTIFIED PRINT FOR MAKE -UP LOCATION.
4. STANDPIPE TO BE HEAT TRACED AND INSULATED FOR WINTER OPERATION (BY OTHERS).
5. THE ELECTRONIC WATER LEVEL CONTROL ON THIS UNIT WILL MAINTAIN THE PROPER OPERATING WATER LEVEL.
HOWEVER, BEFORE INITIAL START -UP THE UNIT MUST BE MANUALLY FILLED TO WITHIN 1" OF THE OVERFLOW.
6. FOR EASE OF MAITENANCE, A SHUT -OFF VALVE IS RECOMMENDED UPSTREAM OF Y- STRAINER.
7. DIMENSIONS LISTED AS FOLLOWS: ENGLISH IN
[METRIC] [mm]
EVA !'' C o• I ` C •
TITLE HEATER LOCATION I UNIT: 8.5x6/7.5/9/10.5 INDUCED DRAFT TOWER DWG. # HLT209XT -DB
HEATER CONTROL PANEL
• (OPTIONAL, SEE WIRING DIAGRAM)
LWCO COVER PLATE
J g '� g L (INSIDE UNIT)
5 == a gtll ,•
+a ;: a : a : $ $a:aaa$a a:a a1 :a: 'a $:$:y a a$: $ i 41 . -$$1 BULB WELL
:.•. $ a s ,
CONN. SIDE PANEL$$$$$$$$$ $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$� $$$$$$$$S��ra$$$� 017- 00006P
1 4.1• •••. ••.; • 1 : : : :,
• 1.11••• ••••S :•:• •a•: +:•a'•:•:•S•i
:: : :. • :: a::; : : a a. .�: , .$: : :' '
14:1411:1 . $$ 4: •• ;• .$. : $.... s . ;..; . ; ;s ; 14. ;. ��s• ;.; ; • • s -�• THERMOSTAT
►:•;.$. • ;. : 4 :11 . ;..$.;. ;.$...;. ;.;.;.;.y 1 ;• ;•;40: : :• ;•$.$.;:m
IMMERSION i ;:$'$ : :::•' �$$ 4 '�:$$$: : : : : : : :$$$: � :$$� $$$: �'� 4! � �i �'! 017- 00005P
HEATER I$ ;aa�:t:4$ =:!$!$4a$$l :l:i$ : $ a_$ i$ 5::. �aSa�$ �aSa!iSa =$l:la�$Si$�a�$:iila_�� .I
[242]
r - --
•
10 1/2 _ LWCO
[
28 266] 017- 00207PA
[
712] —
[152] [1397]
[1549]
END VIEW
NOTES:
1. A MINIMUM OF CLEARANCE IS REQUIRED BETWEEN THE HEATER
OUTLET BOX AND THE NEAREST OBSTRUCTION FOR REMOVAL OF THE HEATER.
2. ALL NIPPLES ON UNIT ARE NOT SHOWN IN ORDER TO CLARIFY
HEATER COMPONENT LOCATIONS.
3. ALL HEATER COMPONENTS BY EVAPCO ARE FACTORY MOUNTED WHEN POSSIBLE.
4. DIMENSIONS LISTED AS FOLLOWS: ENGLISH IN
[METRIC] [mm]
YYYY uNE VOLTAGE: RECOMMENDED POWER AND CONTROL WIRING
ALL HEATERS AND CONTROLS NOT PROVIDED BY EVAPCO
TO BE INSTALLED AND WIRED BY OTHERS
- ALL POWER WIRING BY OTHERS
_- . DISC ALL FIELD WIRING BY OTHERS
L1 L2 L3
nal
UNE VOLTAGE•
•_- ��� (H4) (X2) (H3) (Ht)
( %1) 120V (X2) a Ills
■
L1 CON 1 1H1
• I �0 -____
• ® I � 3 IMMERSION •
u 1 •
® I F - HEATER D. PUMP 1141EFtLOCK TH l 'T
-� • USED. REMOVE JUMPER 1.11
UNIT EAT 1 O O
ER
LI L2 L3 OFF Al1T0
;I -- - -3f - -- - - -- o --
- 1- 0 0 - --4 - --
BLU RED I I
I I
I I
0 --- ---- -- ---- ----- --- -- - - -- m o w• 1gi -- -- ri
L -- — 6J
• LOW WATER CUTOF - -
UNIT 1
a - TERMINAL PONT
• - REMOTE DEVICE
NOTES;
1. DASHED LINES INDICATE FIELD WIRING. IMMERSION HEATER BY: F'EVAPCO ❑OTHERS
2. THE HEATERS HAVE BEEN SIZED TO MAINTAIN 40T PAN LOW WATER CUTOFF/THERMOSTAT ' EVAPCO 1:=1 OTHERS
WATER AT AN AMBIENT TEMPERATURE OF 'F. CONTROL BY
3. ALL COMPONENTS BY EVAPCO HAVE NEMA 4 ENCLOSURES.
4. AUXILIARY N.C. CONTACT INTERLOCKS IMMERSION HEATERS WITH AUXILIARY N.C. PUMP INTERLOCK BY: ❑ EVAPCO IYJOTHERS
SPRAY WATER CIRCULATING PUMP TO DE- ENERGIZE HEATERS WHEN 3� HEATER
SPRAY PUMP IS RUNNING. HEATER CONTROL PANEL BY: ❑ EVAPCO ❑OTHERS WIRING DIAGRAM
5. (1) CONTACTOR IS SUPPLIED FOR EVERY (2) HEATERS
- CONTACTOR OULDBI WITH SEPARATE SUPPLY TRANSFORMER BY: ❑ EVAPCO ❑OTHERS
TERMINALS FOR EACH HEATER. 1 HEATER
6. (1) CONTACTOR IS SUPPLIED PER CELL OF A MULTICELL UNIT HEATER CONTACTOR BY: ❑ EVAPCO ❑OTHERS
- PROVIDES FOR INDIVIDUAL CELL OPERATION FUSED DISCONNECT BY: ❑ EVAPCO El OTHERS B1AU0000 —ED
EVA PC I 117\4 C. „ ayes ,• =®
ALE VIBRATION SWITCH I DESCRIPTION: SINGLE SPEED 1 DWG. # V1A00000 - EE
SUPPLIED VOLTAGE, 3 PHASE
INCOMING POWER
SWITCH CONTACT RATING:
15 AMPS, 125, OR 480 Vac; 1/8 HP, 125 Vac; 1/4 HP,
Iyyy — 250 Vac; 1/2 AMP, 125 Vdc; 1/4 AMP, 250 Vdc.
J` Jl CIRCUIT
REAKER
4 p p B
1
M1 OL1 1T1 WIRING DIAGRAM:
DPDT
I 1 -PHI F 'F I I H CG 1 1 1 MOTOR 0-Th
0y
F F I IDI I -O-�J-O- 1T3 -- / 0 I
I 1 0--,
I L 0 l"
I SUPPLIED VOLTAGE I
L H H3 H2 H4 — — -, 0
— —
CONTROL TRANSFORMER
(BY OTHERS) X2
r — — – - -- - X1 X2 j>-III
O CONTROL VOLTAGE
H AND_ AUTO I OL1
�___ —� I ADO E 71"----E1 ® - ► MOTOR
OPTIONAL j EVAPCO NOTES:
1 THERMOSTAT _ I _ I VIBRATION - 1. DASHED LINES INDICATE WIRING(BY OTHERS)
® o- E – J SWITCH
OFF 017- 00464P
ADJUSTMENT
ADJUST THE SWITCH SO THAT DURING FULL SPEED START -UP AND UNDER NORMAL CONDITIONS, THE CONTACTS DO NOT TRIP.
FIRST, WITH THE MOTOR OFF, TURN THE ADJUSTMENT SCREW COUNTER- CLOCKWISE (MORE SENSITIVE DIRECTION) UNTIL THE
SWITCH TRIPS. NEXT, TURN THE ADJUSTMENT SCREW CLOCKWISE 1/8 TURN (LESS SENSITIVE DIRECTION). RESET THE SWITCH BY
DEPRESSING THE PUSH - BUTTON RESET LOCATED ON TOP OF THE SWITCH. START THE MOTOR ON FULL SPEED. IF THE MOTOR TRIPS
THE SWITCH, THEN TURN THE ADJUSTMENT SCREW CLOCKWISE AN ADDITIONAL 1/8 TURN. RESET THE SWITCH AND START THE
MOTOR AGAIN. REPEAT THE ABOVE PROCEDURE UNTIL THE MOTOR CONTINUES TO RUN.
•
Date: 8/23/2010
EVAPCO AT INDUCED DRAFT COUNTERFLOW COOLING TOWER
Furnish and install as shown on the plans (1) EVAPCO Model AT -19 -28 induced draft counterflow cooling
tower with CTI Certified performance to cool 480 gpm of water from 95 °F to 85 °F at 72 °F entering wet bulb
temperature.
Unit Type
Factory assembled, induced draft, counterflow cooling tower.
Construction
All cold water basin components including vertical supports and air inlet louver frames are constructed of type
304 Stainless Steel. Casing, channel$ and angle supports are constructed of heavy gauge mill hot -dip
galvanized steel. All galvanized steel is coated with a minimum of 2.35 ounces of zinc per square foot of area
(G -235 designation). During fabrication, all galvanized steel panel edges are coated with a 95% pure zinc -rich
compound.
IBC Compliance
The unit structure has been designed, analyzed, and constructed in accordance with the latest edition of
International Building Code (IBC) Regulations for seismic loads up to lg and wind loads up to 60psf.
Pan Strainer*
All type 304 stainless steel construction with large area removable perforated screens.
Access
Hinged door in the upper casing for fan drive and water distribution system access. Removable louver panels
on all four sides of the unit for pan and sump access. Hinged swing away cover for motor access.
Fan Shaft
Solid shaft of ground and polished steel.
Fan Shaft Bearings
Heavy -duty, self - aligning ball type bearings with extended lubrication lines to grease fittings on the exterior
casing. Bearings are designed for a minimum L-10 life of 75,000 hours.
Fans
Fans are axial propeller type constructed of aluminum alloy and statically balanced. The fan is installed in a
closely fitted cowl with venturi air inlet. Fan screens are galvanized steel mesh and have steel frames bolted to
the fan cowl.
Fan Motor
Totally enclosed, ball bearing type electric motor with 1.15 service factor suitable for outdoor service.
*OMITTED ON UNITS FOR REMOTE SUMP OPERATION
Date: 8/23/2010
Fan Drive
The fan drive is a multi - groove, solid back, reinforced neoprene V -belt type with taper lock sheaves designed
for 150% of the motor nameplate horsepower. Fan sheave is constructed of aluminum alloy. The motor sheave
is external to the unit for dry operation.
Fill
Polyvinyl Chloride (PVC) of cross -fluted design. PVC sheets are bonded together for strength and durability.
Fill is self - extinguishing for fire resistance, has a flame spread of 5 under A.S.T.M. designation E- 84 -81a, and
is resistant to rot, decay and biological attack.
Water Distribution System
Precision molded ABS, large orifice spray nozzles utilizing fluidic technology for superior water distribution
over the fill media and to minimize water distribution system maintenance. Spray header and branches are
Schedule 40 Polyvinyl Chloride (PVC) for corrosion resistance with steel connection to attach external piping.
Branches have threaded end caps to facilitate debris removal.
Eliminators
The eliminators are constructed entirely of Polyvinyl Chloride (PVC) in easily handled sections. Design
incorporates three changes in air direction and limits the water carryover to a maximum of 0.001 % of the
circulating water rate.
Air Inlet Louvers
The air inlet louvers are constructed from UV inhibited polyvinyl chloride (PVC) and incorporate a framed
interlocking design that allows for easy removal of louvers for access to the entire basin area for maintenance.
The louvers have a minimum of two changes in air direction and are of a non - planar design to prevent splash -
out, block direct sunlight and debris from entering the basin. (Patent Pending)
Electronic Water Level Control Package
Electronic water level control package with three (3) stainless steel water level sensors ((1) one high level, one
(1) low level and one (1) ground) with a NEMA 4X enclosure mounted in a cleanable Schedule 40 PVC
external standpipe with slow closing solenoid Valve(s) and "y" strainer(s).
*OMITTED ON UNITS FOR REMOTE SUMP OPERATION