EVAPCO ATC-E User manual

Rigging and
Assembly nstructions
ATC-E, ATC-ES, ATWB, eco-ATWB and
eco-ATWB-E Evaporative Condensers and
Closed Circuit Coolers
Bulletin ATWB19RIG
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Bridgewater, NJ 08807 USA
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Littleton, CO 80127 USA
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R frig ration V ss ls & Syst ms Corporation
A wholl owned subsidiar of EVAPCO, Inc.
Bryan, TX USA
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EvapT ch, Inc.
A wholl owned subsidiar of EVAPCO, Inc.
Lenexa, KS USA
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Ramseur, NC USA
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York, PA USA
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Milan, Italy
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Sondrio, Italy
EVAPCO Europ GmbH
Meerbusch, Germany
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EVAPCO Air Solutions
A wholl owned subsidiar of EVAPCO, Inc.
Aabybro, Denmark
(45) 9824 4999 p
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EVAPCO Air Solutions GmbH
Garbsen, Germany
(49) 5137 93875-0 p
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Evap Egypt Engin ring Industri s Co.
A licensed manufacturer of EVAPCO, Inc.
Nasr City, Cairo, Egypt
2 02 24022866/2 02 24044997 p
[e-mail] / [e-mail]
EVAPCO Middl East DMCC
Dubai, United Arab Emirates
[phone] p
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EVAPCO S.A. (Pty.) Ltd.
A licensed manufacturer of EVAPCO, Inc.
Isando 1600, Republic of South Africa
(27) 11-392-6630 p
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EVAPCO (Shanghai) R frig ration Equipm nt Co., Ltd.
Baoshan Industrial Zone Shanghai, P.R. China
(86) 21-6687-7786 p
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B ijing EVAPCO R frig ration Equipm nt Co., Ltd.
Huairou District Beijing, P.R. China
010-6166-7238 p
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EVAPCO Air Cooling Syst ms (Jiaxing) Company, Ltd.
Building 10, 1133 Taoyuan Road,
Jiaxing, Zhejiang, China
(86) 573 83119379 p
[e-mail]
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Riverstone NSW 2765, Australia
(61) 2 9627-3322 p
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North Am rica
South Am rica
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Fan T chnology R sourc s
Cruz das Almas – Indaiatuba
São Paulo, Brasil 13308-200
55 (11) 4025-1670 p
[e-mail]

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ATC-E, ATC-ES, ATWB, eco-ATWB and eco-ATWB-E Evaporative Condensers and Closed Circuit Coolers
Table of Contents
ntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Method of Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Structural Steel Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Rigging Basin Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Joining Multi-Cell Units Basin Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Equalizer Blank-Off Plate: Multi Cell Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Application of Sealer Tape . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Rigging Coil/Fan Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Extended Lifts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Assembly of the Coil/Fan Section to the Basin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Containerized Unit Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Assembly of the Fan Section to the Coil Section (Containerized) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Assembly of the Coil Section to the Basin (Containerized) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
nstalling Watertight Partitions & Firewalls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
External Motor nstallation – Belt Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Optional Motor & Gear Box Davit nstallation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Mounting Fan Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Sloped Ladder nstallation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
External Platform and Vertical Ladder nstallation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

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ATC-E, ATC-ES, ATWB, eco-ATWB and eco-ATWB-E Evaporative Condensers and Closed Circuit Coolers
Introduct on
This manual provides instructions and recommendations to safely and correctly install all ATC-E, ATC-ES, ATWB, eco-ATWB and eco-
ATWB-E Evaporative Condensers and Closed Circuit Coolers. It is recommended that all the instructions provided in this manual be
reviewed in detail prior to rigging and assembly. If at any point, specific circumstances not covered by this manual arise, please contact
your local EVAPCO representative for assistance.
Proper care must be taken by all parties involved in handling and assembling the equipment to ensure that safe and thorough
installation practices are implemented to prevent damage or injury to the equipment, persons and environment involved.
Method of Sh pment
Induced draft coil products are shipped with the top section(s) separate from the bottom section(s). These sections have mating flanges
and will join together in a waterproof joint when sealed and bolted together as described in the following instructions. Miscellaneous
items, such as sealer, self-tapping screws and any other required materials, are packaged and placed inside the pan for shipment. or
units consisting of multiple cells, drip channels and splash guards will ship loose in the basin for field installation.
or 7' and 8.5' (2.2 m and 2.6m) and 14' and 17' (4.3m and 5.2m) wide units, the motors and drives are factory aligned and then
shipped loose inside the basin section for mounting during installation. Refer to the “External Motor Installation” section in this bulletin.
NOTE: All casing sections are factory inspected prior to shipment to verify proper fit for rigging. Please take extra care to handle and rig
unit section per the instructions of this manual to avoid possible distortion and poor casing alignment. It is advisable to check each
section upon receipt and during each lift to ensure that the factory alignment has not been altered. Should the field inspection indicate the
section alignment (“square”) has been altered, please contact the factory or your local EVAPCO representative for additional instructions
to obtain proper section fit.
Structural Steel Support
Two structural “I” beams running the length of the unit are required for support of each cell of the units. These beams should be
located underneath the outer flanges of the unit (See Table 1). Mounting holes 3/4” (1.9mm) in diameter are located in the bottom
flanges of the unit for bolting to the structural steel (See steel support print in unit submittal for exact bolt hole location). Bolt the
bottom section to the steel support before rigging the top section.
Beams should be sized in accordance with accepted structural practices. Maximum deflection of the beam under the unit to be
1/360th of the unit length, not to exceed 1/2” (13mm). Deflection may be calculated by using 55% of the operating weight of the
unit as a uniform load on each beam (See certified print in unit submittal for operating weight).
The supporting “I” beams should be level before setting the unit. Do not level the unit by shimming between the bottom flanges
and the beams as this will not provide proper and continuous longitudinal support. Support beams and anchor bolts are to be
furnished by others. Always refer to the certified print in the unit submittal for unit weights, dimensions and technical data.
Please refer to the unit submittal for detailed, project specific steel support arrangement.
W
W
3' (0.914m), 4’ (1.2m), 7’ (2.2m), 8.5’
(2.6m), 10’ (3m), and 12' (3.6m) wide
single & multi-cell units
14’ (4.3m), 16' (4.8m), 17’ (5.2m), 20’
(6m) and 24’ (7.3) wide multi-cell units
Table 1 - Standard Longitudinal Steel Support Arrangement

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ATC-E, ATC-ES, ATWB, eco-ATWB and eco-ATWB-E Evaporative Condensers and Closed Circuit Coolers
R gg ng Bas n Sect on
Lifting devices are located in the upper corners of the basin
section for lifting and final positioning purposes as shown in
igures 1a and 1b. The hook of the crane must be a minimum
dimension of “H” above the top of the section being lifted to
prevent undue strain on the lifting devices. See Table 2 for the
minimum “H” dimension. These lifting devices should not be
used for extended lifts or where any hazard exists unless
safety slings are employed under the section. (See “Extended
Lifts” section for proper arrangement.) Bolt the basin section to
the steel support before rigging the coil/fan section.
Figure 1b - Basin Section 24' (7.3m) to 40' (12.2m) long
LIFTING
EARS
H
LIFTING
EARS
H
Basin Section Length Min. “H” Dim.
eet Meters eet Meters
3 - 6 0.9-1.8 8 2.4
8.5 2.6 10 3
9 2.7 10 3
10.5 3.2 11 3.4
12 3.6 15 4.6
14 4.3 17 5.2
18 5.5 19 5.8
20 6 21 6.4
21 6.4 22 6.7
24 7.3 15 4.6
28 8.5 16 4.9
36 11 19 5.8
40 12.2 21 6.4
Table 2 - Minimum “H” Dimension for Basin Sections
Figure 1a - Basin Section up to 21' (6.4m) long
Jo n ng Mult -Cell Un ts
On all 2-cell models, the two bottom sections are shipped
separately and are typically furnished with a connecting equalizer
flume box between them.
In addition to the equalizer flumes, these units are provided with
horizontal drip channels and vertical splash guards to keep water
from splashing out from between the cells. All units have one or
more horizontal drip channel and two vertical splash guards per
flume box. lume boxes are a standard offering on multi-cell units.
The equalizer flume box is factory installed on one section for field
connection to the other. It is important to connect the equalizer
flume to balance the water level in the pans for proper pump
suction operation. The procedures that follow should be
performed in sequence.
HORIZONTAL
DRIP
CHANNEL
VERTICAL
SPLASH
GUARD
FLUME BOX
SEALER
TAPE
RETAINING
CLIP
Figure 2 - Equalizer lume Connection, 12' (3.6m) Wide Models

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ATC-E, ATC-ES, ATWB, eco-ATWB and eco-ATWB-E Evaporative Condensers and Closed Circuit Coolers
For units on which the flume box ships loose:
1. Rig one of the bottom sections of the multi-cell unit. Bolt to steel support.
2. One face of the flume box is provided with 3/8” (10mm) welded bolts. Clean the mating flume opening on the rigged bottom
section and apply a layer of sealer tape on this surface, centered between the hole centers and the outside edge. Remove
paper backing strip from sealer tape.
3. Align the bolt holes in the rigged bottom section with the welded 3/8” (10mm) bolts on the flume box.
4. Install 3/8” (10mm) nuts and washers on every bolt around the flume opening and tighten.
5. ollow steps 4 through 10 as shown below.
For units on which the flume box ships mounted to one cell:
1. Install the bottom section with the factory installed flume box on it as described above.
2. Clean the flanges on the flume box on the end to be field connected. Apply a layer of sealer tape on the flange, centered
between the hole centers and the outside edge. Remove paper backing strip from the sealer tape.
3. Clean the mating surface of the flume opening of any dirt, grease or moisture.
4. Rig the second bottom section adjacent to the equalizer flume on the steel support as shown in the sequential figures that
follow.
5. Align the bolt holes in the flume box and flume opening with drift pins (by others) while drawing the second bottom section
against the flanged connection.
6. Install 3/8” (10mm) bolts, nuts, and washers in every hole around the flume opening and tighten.
7. Bolt the second bottom section to the steel support.
8. Remove the 1/4” (6mm) bolts which hold the drip channel retaining clips to the end panel. Place the drip channel over the
adjoining pan section flanges. Turn around the retaining clips and install them using the same hardware.
9. If there are multiple drip channels, fasten them together end-to-end by driving a self-tapping 5/16” (8mm) screw through the
section end with the larger hole into the mating end with the smaller hole. Stainless steel units will use 5/16” (8mm) stainless
steel nuts and bolts.
10. Place the vertical splash guard in the bend of the vertical supports. On galvanized units, attach the vertical splash guard using
5/16” (8mm) self-tapping screws. On stainless steel units, attach the vertical splash guards using 5/16” (8mm) stainless steel
nuts and bolts. (See figure 3a)
11. Once the bottom of the vertical splash guard has been attached to the drip channel, place the filler cap channel in the upper
flanges of the bottom section as shown in igure 3a. Attach to vertical splash guards using 5/16" (8mm) tappers (for galvanized
units) or stainless steel nuts and bolts (for stainless steel units).

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ATC-E, ATC-ES, ATWB, eco-ATWB and eco-ATWB-E Evaporative Condensers and Closed Circuit Coolers
FACTORY INSTALLED
EQUALIZER FLUME BOX
VERTICAL
SPLASH
GUARD
FLUME
BOX
DRIP CHANNEL
FILLER CAP
CHANNEL
SIDE PANEL
VERTICAL
SPLASH GUARD
VERTICAL
SPLASH
GUARD
EQUALIZER FLUME BOX
SEALER TAPE
DRIP CHANNEL
RETAINING CLIP
Figure 3a - Drip Channel and Vertical Splash Guard Installation
D IP CHANNEL
SECTION
SEALE TAPE
5/16” (8mm)
TAPPE
DRILLING IS
REQUIRED
IN THE FIELD
FOR THESE
HOLES
DRIP
CHANNEL
RETAINING
CLIP
END PANEL
TAPPERS (GALVANIZED)
OR STAINLESS STEEL
BOLTS (STAINLESS)
Figure 3 - Joining Bottom Sections – Multi Cell Units

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ATC-E, ATC-ES, ATWB, eco-ATWB and eco-ATWB-E Evaporative Condensers and Closed Circuit Coolers
Equal zer Blank-Off Plate:
Mult Cell Un ts
Equalizer blank-off plate(s) are available to isolate the
bottom sections for individual cell operation, periodic
cleaning, or maintenance.The optional equalizer blank-off
plate is factory installed on the equalizer flume and
secured by wing nuts. This plate is also known as a
“flume plate” or “positive closure plate.”
or units not requiring the blank-off plate under normal
operating conditions, remove the wing nuts, washers,
plate and gasket. Reinstall washers and wing nuts for
proper leak free operation of the equalizer flume box.
Appl cat on of Sealer Tape
Once the bottom section has been set on the supporting steel and bolted in place, the top flanges should be wiped down to remove
any dirt or moisture. Sealer tape should be placed over the mounting hole centerline on the side flanges along the entire length of
all sides. Apply two strips of sealer tape, one partially overlapping the other, on the entire length of the end flanges (flanges with no
bolt holes).
The sealer tape should overlap on the corners as shown in igure 5a. Do not splice the sealer tape along the end flanges and
preferably not on the side flanges if it can be avoided.
Always remove the paper backing from the sealer tape.
All models with two or more top sections must have sealer tape applied along the entire length of all internal flanges, as shown in
igure 5b.
DRIP
CHANNEL
SEALER TAPE
GASKET
RETAINER
CLIP
FLUME
BOX
BLANK
OFF PLATE
VERTICAL
SPLASH
GUARD
Figure 4 - Equalizer Blank-Off Plate Installation
2 OVERLAPPING LAYERS
OF SEALER TAPE
ON THE ENDS
1 LAYER OF SEALER TAPE
CENTERED OVER THE
MOUNTING HOLES
END SIDE
2 OVERLAPPING
LAYERS
OF SEALER
TAPE ON
THE ENDS
1 LAYER OF
SEALER TAPE
CENTERED
OVER THE
MOUNTING
HOLES
Figure 5b - Sealer Tape Detail for Center Joint of Units with
our Top Sections
Figure 5a - Sealer Tape on lange of Bottom Section

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ATC-E, ATC-ES, ATWB, eco-ATWB and eco-ATWB-E Evaporative Condensers and Closed Circuit Coolers
R gg ng Co l/Fan Sect on
our lifting ears are provided in the lower corners of most coil/fan sections for lifting into final position. Some 18' (5.5m) long
sections and longer will have two additional lifting ears in the middle of the section. (See igures 6a and 6b.)
Use all lifting ears. A spreader beam must be used for lifting the top section(s) as shown in igures 6a and 6b.
The hook of the crane must be a minimum dimension “H” above the lifting ear to prevent undue strain on the lifting ears. See Table
3 for the minimum “H” dimension. These lifting devices should not be used for extended lifts or where any hazard exists unless
safety slings are employed under the section. (See “Extended Lifts” for proper arrangement.)
Note: or 7' (2.24m) and 8.5' (2.6m) wide models, mount the external motor prior to rigging as detailed in the “External Motor
Installation” section.
Section Section Minimum "H"
Width Length Dimension
eet Meters eet Meters eet Meters
4 1.2 5 1.5
4 1.2 6 1.8 6 1.8
9 2.7 8 2.4
12 3.6 11 3.4
6 1.8 8.5 2.6 9 2.7
9 2.7 9 2.7
7 2.2 12 3.6 10 3
18 5.5 14 4.3
6 1.8 7 2.1
7.5 2.4 8 2.4
9 2.7 9 2.7
8/8.5 2.4/2.6 10.5 3.2 10 3
12 3.6 10 3
14 4.3 12 3.6
18 5.5 14 4.3
21 6.4 17 5.2
10 3 12 3.6 12 3.6
18 5.5 14 4.3
12 3.6 12 3.6
12 3.6 14 4.3 13 4
18 5.5 14 4.3
20 6 15 4.6
14 4.4 24 7.3 17 5.2
26 7.8 22 6.7
Table 3 - Minimum "H" Dimension for Coil/ an Sections
Figure 6a - our Point Lift
SPREADER BEAM
H
LIFTING EARS
SPREADER BEAM
LIFTING EARS
H
Figure 6b - Six Point Lift

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ATC-E, ATC-ES, ATWB, eco-ATWB and eco-ATWB-E Evaporative Condensers and Closed Circuit Coolers
H
LIFTING
EAR
LIFTING
EAR
SPREADER
BARS
SAFETY SLINGS
Figure 7 - Extended Lifts
Extended L fts
mportant: The lifting devices and “U” bolts should be used for final positioning only and for lifting where no danger
exists. f they are used for extended lifts, safety slings should be provided under the sections.
Safety slings and skids must be removed before final positioning of the unit.
The preferred method for extended lifts is to use slings under the unit, as shown in igure 7 below. Spreader bars should always be
used between the cables at the top of the section to prevent damage to the upper flanges or fan cylinders.
Assembly of the Co l/Fan Sect on to the Bas n
Before securing the upper section to the bottom section, remove any loose
parts shipped in the basin.
Wipe the flanges on the bottom of the upper section. Check to see that the
water distribution connection on the top section is in the correct position
relative to the bottom section (see unit certified drawing). Units are also
provided with match markings on each section (i.e. A1 of bottom section
should match up with A1 of top section).
Lower the upper section to within several inches of the bottom section making
sure the two sections do not touch and the sealer tape is not disturbed.
asten all four corners. Make use of drift pins to simplify the fastening
process, for further instructions on the use of drift pins, see page 10.
Install the remaining fasteners, working from the corners towards the center.
asteners must be installed in every hole in the side flanges. No fasteners
are required on the end flanges.
Figure 8 - Mating Upper Section to Basin Section

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ATC-E, ATC-ES, ATWB, eco-ATWB and eco-ATWB-E Evaporative Condensers and Closed Circuit Coolers
Assembly of the Co l/Fan Sect on to the Bas n (Cont.)
Use of Drift Pins for Final Positioning
Drift pins are tools used to align holes in the flanges of the
upper and lower sections of the unit prior to final fastening. By
the time drift pins are needed, the lower section of the unit has
already been anchored to its support structure. The sealer tape
has been laid down on the lower section’s flanges, and the
upper section is now hovering over the lower section.
A drift pin should be driven in to each of the corner bolt holes
such that the upper and lower flanges are aligned as best as
possible with sideways motion restricted.
On units which are longer than 12’ (“L” > 12' [3.7m]), a drift pin
should be used at an intermediate pair of bolt holes in the
rigging seam to allow for proper alignment.
VERTICAL
SPLASH
GUARD
PAN SECTION
SIDE PANEL
FILLER CAP
CHANNEL
Figure 9 - Mating Upper Section to Basin Section
Figure 10 - iller Cap Channel Assembly
Notes:
For multi-cell units, the side flanges located in between cells
can be accessed from inside the unit.
Bolts can be driven upward through the mating flanges if
access is restricted.
All rigging hardware is provided by EVAPCO. Drift pins are
by others.

11
ATC-E, ATC-ES, ATWB, eco-ATWB and eco-ATWB-E Evaporative Condensers and Closed Circuit Coolers
Conta ner zed Un t Assembly
7' and 14' (2.2m and 4.4m) wide ATWB units are optimized to be transported in export containers for overseas shipment. When these
units are required to be shipped in containers, the fan section is loosely bolted to the basin section prior to placing in the container.
Depending on the size of the unit and accessory options, there a few different shipping configurations as outlined below.
Notes:
*HC indicates “High Cube.” High cube containers provide an additional foot of container height which allows for
standard fan cylinders to ship mounted to the fan sections (See Figure 11 for an example of a high cube container).
igure 11 below shows an example of a 7’ x 18’ unit shipping in a 40’ high cube container. A high cube container is used
so that the fan cylinders can ship mounted to the fan section. In such a case, the fan section is loosely bolted to the basin
section.
Figure 11 - 40’ High Cube Container Shipment
LIFTING EARS
CASING SECTION
FAN SECTION
BASIN SECTION
# of Containers Required
Box Size Standard Fan SLSF
7 x 9 (1) 20' (1) 40'
7 x 12 (1) 40' HC* (1) 40'
7 x 18 (1) 40' HC* (1) 40' + (1) 20'
14 x 9 (1) 40' HC* (2) 40'
14 x 12 (1) 40' HC + (1) 20' (2) 40'
14 x 18 (2) 40' HC* (3) 40'
7 x 24 (1) 40' HC + (1) 20' (2) 40'
7 x 36 (2) 40' HC* (3) 40'
Single Cell
Unit Type
Multi-Cell
Multi-Cell
Table 4 - Number of Containers Required

12
ATC-E, ATC-ES, ATWB, eco-ATWB and eco-ATWB-E Evaporative Condensers and Closed Circuit Coolers
igure 12 shows a 7’ x 9’ unit shipping in a 20’ standard height container. 20’ containers are not available in high cube
configuration, therefore requiring the fan cylinders to ship loose in the basin for assembly in the field.
Figure 12 - 20’ Standard Height Container Shipment
Figure 13 - Split an Cylinder for Standard Height Container Shipment
CYLINDER ASSEMBLY
(CUT IN HALF)
ATTACH TOGETHER USING
5/16Ø HARDWARE
nstructions to put together fan cylinder:
1. Line up match-markings on the fan deck to ensure proper alignment.
2. Make sure fan assembly is centered within cylinder before attaching to fan section.
LIFTING EARS CASING SECTION
FAN SECTION
BASIN SECTION

13
ATC-E, ATC-ES, ATWB, eco-ATWB and eco-ATWB-E Evaporative Condensers and Closed Circuit Coolers
Figure 14 - 40’ Standard Height Container, Unit with Super Low Sound an
igure 14 shows a 7’ x 12’ unit with super low sound fan shipping in a 40’ standard height shipping container. Any containerized
unit selected with Super Low Sound ans will ship in 3 pieces as shown below.
While the image below is not representative of all possible accessory options, but it provides an example of how containerized
unit’s basins are set up for shipment. Platforms and ladders are strapped to the top of the casing
PUMP MOTO * FAN MOTO
MOTO DAVIT
WATE SILENCE S
* On Coolers & Condensers only. Not applicable to towers.
ISE PIPING*
IGGING BOX
BASIN SECTION LIFTING EARS CASING SECTION
FAN SECTION
Once the sections have been unloaded from the shipping container, follow the below steps to complete assembly. Please check
table of contents for associated page numbers to get to the instructions referenced below.
1. Unbolt fan section from basin section.
2. Lift fan section and rig to casing section using instructions from "Assembly of the fan section to the coil section (Containerized)".
3. Rig basin section using instructions from “Rigging Basin Section”.
4. Lift upper section (fan + casing) and rig to basin using instructions from "Assembly of the Coil Section to the Basin
(Containerized)".

14
ATC-E, ATC-ES, ATWB, eco-ATWB and eco-ATWB-E Evaporative Condensers and Closed Circuit Coolers
Assembly of the Fan Sect on to the Co l Sect on (Conta ner zed)
7' and 14' (2.2m and 4.4m) Wide Models – an Section Will Need To Be
Mounted to the Coil Section irst
our lifting U-Bolts are provided in the top corners of most fan sections for
lifting into final position. 18' (5.5m), long sections will have two additional
U-Bolts in the middle of the fan section. Use all U-Bolts. The hook of the
crane must be a minimum dimension “H” above the top section being lifted
to prevent undue strain on the section being lifted. See Table 3 for the
minimum “H” dimension. These lifting devices should not be used for
extended lifts or where any hazard exists unless safety slings are
employed under the section. (See Extended Lifts’ for proper arrangement.)
Before assembling the fan section to the coil section, wipe the flanges on
the bottom of the fan section and apply sealer tape. Check to see that the
motor access doors are in the correct position relative to the coil section
(see certified print). Units are also provided with match markings on each
section (i.e. A1 of the coil section should match up with the A1 of the fan
section). Place nuts and bolts in all four corner bolt holes. Then continue to
install the rest of the nuts and bolts working from the corners towards the
center. Nuts and bolts are required on the end flanges. Drift pins are
provided in rigging box to assist with alignment.
Figure 15 - Mating an Section to Coil Section
Assembly of the Co l Sect on to the Bas n (Conta ner zed)
7' and 14' (2.2m and 4.4m) Wide Models – an Section Will Need To
Be Mounted to the Coil Section irst
Before assembling the coil section to the basin section, remove any loose
parts shipped in the pan. our lifting ears are provided in the corners of
coil sections for lifting into final position. 18' (5.5m), long sections will
have two additional lifting ears in the middle of the section. Use all lifting
ears. When lifting assembled fan/coil sections, use the lifting ears at the
bottom of the coil section and not the U-Bolts of the fan section. The hook
of the crane must be a minimum dimension “H” above the lifting ear to
prevent undue strain on the lifting ears. See Table 3 for the minimum “H”
dimension. These lifting devices should not be used for extended lifts or
where any hazard exists unless safety slings are employed under the
section. (See Extended Lifts for proper arrangement.)
Before assembling the fan/coil section to the basin section, wipe the
flanges on the bottom of the coil section and apply sealer tape to the
basin section. Check to see that the access doors are in the correct
position relative to the basin section (see certified print). Units are also
provided with match markings on each section (i.e. A1 of the coil section
should match up with the A1 of the fan section). Place nuts and bolts in all
four corner bolt holes. Then continue to install the rest of the nuts and
bolts working from the corners towards the center. Nuts and bolts are
required on the end flanges. Drift pins are provided in rigging box to
assist with alignment
Figure 16 - Mating an/Coil Section to Basin Section

15
ATC-E, ATC-ES, ATWB, eco-ATWB and eco-ATWB-E Evaporative Condensers and Closed Circuit Coolers
WING BOLTS
UPPER
PANEL
LOWER
PANEL
TAPPERS
Figure 17 - Upper Partition/ irewall Installation in ield
Install ng Watert ght Part t ons & F rewalls
In some cases, a multi-cell unit is ordered with watertight partitions to allow for independent cell operation. To correctly assemble the
upper sections to the bottom sections, access to the rigging seams in between cells is necessary. To facilitate with this access, the
upper watertight partition is shipped loose for installation in the field. igure 17 below provides instruction to install these in the field.
Note: The below instruction and arrangement also applies for Factory Mutual (FM) Approved multi-cell units, in which
case these partitions will be referred to as firewalls.
UPPE PA TITION WALL TO
SHIP LOOSE FO FIELD
INSTALLATION AFTE UNIT IS
IGGED, IF NECESSA Y.
LOWE PA TITION WALL
INSTALLED BY SHOP
P IO TO SHIPPING. MAY
BE ONE PIECE FO END
TO END UNITS.
(2) MOUNTING CHANNELS
INSTALLED BY SHOP P IO
TO SHIPPING.
1/4Ø (8) 20 X 1” LG
FULLY TH EADED HHCS
1/4Ø (8) B ASS IVNUT
APPLY SEALE TAPE
TO BOTH SIDES FO
COMP ESSION
1/4” (8) WIDE
FLAT WASHE
SEALE TAPE
AND CAULK AS
NECESSA Y

16
ATC-E, ATC-ES, ATWB, eco-ATWB and eco-ATWB-E Evaporative Condensers and Closed Circuit Coolers
1. Study igure 18a above before installing the motor base on the unit.
2. Insert the lifting device into the slots Alocated on the top of the motor base.
3. Lift the motor base Band insert the pivot pin Cdown into hole Eand pivot pin Finto hole D.
4. Install washer and nut (do not overtighten) on pivot pins. Install jam nut on pivot pin C.
5. Insert “J” bolts Ginto holes H. Install flat washers and cotter pins. Place nuts and washers on threaded portion of “J” bolts.
These will be behind the motor base installed in the next step.
6. Install “J” bolts Ginto holes Jin the motor base. Install flat washers, lock washer and nuts. Remove lifting device from the
motor base. Position motor base towards top section of unit for belt installation.
7. Install Power-Band belt K( igure 18b) around fan
sheave and motor sheave. Tighten belt by adjusting
nuts on “J” bolts. Do not overtighten the belts. The
center of the belt should deflect approximately 3/4”
(19mm) in the horizontal plane with moderate hand
pressure.
8. Measure to see that the top and bottom of the
motor base are the same distance out from the
casing of the unit. This will ensure that the sheaves
are properly aligned since the driven sheave on the
fan shaft comes pre-set from the factory.
9. As a final check, lay a straight edge from sheave to
sheave as shown below in igure 19. There should
be four-point contact. Adjust the position of the
motor sheave as necessary until four-point contact
is achieved.
FAN SHEAVE
ADJUST POSITION
OF MOTOR SHEAVE
(only if necessary)
12 3 4
Figure 19 - Sheave Alignment Check
10. To install motor guard L, match up hinges and install hinge pins Mas shown in igure 18b.
11. Close motor guard Land install wing bolts M.
Note: For European market, additional belt cover plate needs to be installed.
G
H
F
GE
D
C
B
A
J
N
K
M
L
External Motor Installat on – Belt Dr ve
All units narrower than 10’ (3m) wide have their motors installed outside the unit in a shaft up configuration as shown in figures 18a
and 18b below. Due to shipping width restrictions, these motors cannot ship mounted on the units since they would extend past the
width of the truck. or this reason, the motor(s), motor base(s), motor guard(s), “J” bolts, pivot pins and belt(s) are shipped in the
cold-water basin of the cooling tower. Please follow the step-by-step instructions below to properly install these components.
Figure 18a - External Motor Installation Figure 18b - Motor Guard and Power-Band
Belt Installation

17
ATC-E, ATC-ES, ATWB, eco-ATWB and eco-ATWB-E Evaporative Condensers and Closed Circuit Coolers
M
MOUNTING
BRACKET
MOUNTING
BRACKET
MOUNTING
BRACKET
MOUNTING CHANNEL
(SHIPS LOOSE)
ACCESS
DOOR
MOUNTING BRACKET
MOUNTING CHANNEL
BOLT
FLAT WASHER
FLAT WASHER
LOCK WASHER
NUT
Figure 20 - Dual-Point Davit Arrangement
Figure 21 - Mounting Channel Installation
Opt onal Motor & Gear Box Dav t Installat on
Motor davits, also known as jib-booms, are offered by EVAPCO as an optional accessory to facilitate removal of the motor, fan
assembly or gear box. The assembly consists of a davit and a mounting base that is to be attached to the side of the unit next to the
access door, as shown below in igure 20. Both these items will ship loose in the unit’s basin. On multi-cell units, there will be
provisions to install a mounting channel on each cell. Use the following procedure to install the mounting channel:
1. Align the mounting channel with 3/8” (10mm) bolts and flat washers to the factory installed mounting brackets
2. Use 3/8” (10mm) flat washers, lock washers and nuts to secure the mounting channel to the bracket, as shown in igure 21.
Mount ng Fan Screens
On 10’ (3m) wide units and larger, a conical fan screen support is used in order to prevent the fan screen from sinking down into
the fan cylinder. In some cases, shipping height restrictions may require the fan screen support(s) and fan screen(s) to ship loose
for installation in the field. Please follow the below instructions to install these components on the fan cylinder(s).
1. Set the fan screen support across the top of the fan cylinder as shown in igure 22.
2. Place both halves of the fan screen on top of the fan screen support. Each half will be tagged to match markings on the
cylinder. Align the eyelets of the fan screen with the holes on the cylinder perimeter.
3. Join the two screen halves with “U” bolts, as shown in igure 23.
4. At each hole, attach the fan screen to the fan cylinder as shown in igure 22. At the four points where the fan screen support
meets the cylinder, bolt the support to the cylinder together with the fan screen.

18
ATC-E, ATC-ES, ATWB, eco-ATWB and eco-ATWB-E Evaporative Condensers and Closed Circuit Coolers
Sloped Ladder Installat on
When sloped ladders are supplied with a unit, they are shipped in the unit’s basin. One sloped ladder will be provided for each cell.
Assembly is identical for each cell, unless otherwise noted in the submittal.
Sloped ladders are attached at a minimum of three points. At each point of attachment, the ladder will be fitted with a ladder
bracket assembly. The ladder bracket assembly looks like a metal box and is shown as component d in igure 24 below. The upper
two assembly brackets will be rigidly mounted to the ladder and are not adjustable. These two brackets define the slope of the
ladder. The lower bracket(s) are adjustable.
To install the ladder assembly, complete the steps that follow. R efer to igure 24:
LADDER
MOUNTING
CHANNEL (b)
ADJUSTING SCREW (e)
(WHEN APPLICABLE)
LADDER BRACKET
MOUNTING BOLTS (a)
LADDER BRACKET
ASSEMBLY BOLTS (c)
LADDER BRACKET
ASSEMBLY (d)
Figure 24 - Detail of Ladder, Ladder Bracket Assembly & Mounting Channel
FAN SCREEN
SUPPORT
FAN
CYLINDER
Figure 22 - an Screen Support & an Screen installation
Figure 23 - U-Bolt Assembly Spacing & Arrangement
Note: European market utilizes alternative CE compliant fan screen with 30mm x 30mm mesh. Screen has 120mm
clearance from trailing edge of fan blades.
1/2” (13mm) BOLT
1/2” (13mm) FLATWASHE
5/8” (16mm) FLATWASHE
5/8” (13mm) LOCKWASHE
1/2” (13mm) HEX NUT
FAN
CYLINDE
FAN SC EEN
SUPPO T
U-BOLT
ASSEMBLY
U-BOLT
ASSEMBLY
FAN SC EEN

19
ATC-E, ATC-ES, ATWB, eco-ATWB and eco-ATWB-E Evaporative Condensers and Closed Circuit Coolers
Notes:
Upper section of unit must be properly oriented with respect to the lower section.
All mounting brackets must be on the same side of the unit. Refer to submittal for proper orientation.
Sloped ladders are not CE compliant & are not available for European market.
1. Remove the ladder bracket mounting bolts (a) from the ladder mounting channels (b) on basin and casing sections.
2. Loosen, but do not remove, the ladder bracket and assembly bolts (c).
3. Slide the bracket assembly (d) over the ladder mounting channels (b) located on the pan and casing sections. Do not
remove the ladder bracket assembly (d) from the ladder.
4. Align the bolts and reinstall the ladder bracket assembly mounting bolts (a) through the ladder bracket assembly and the
ladder mounting channels (b).
5. Tighten all bolts.
6. Tighten the adjusting screw (e) in the adjustable mounting bracket where applicable.
Figure 25a - End View of Ladder Assembly Figure 25b - Side View of Ladder Assembly

20
ATC-E, ATC-ES, ATWB, eco-ATWB and eco-ATWB-E Evaporative Condensers and Closed Circuit Coolers
External Platform and Vert cal Ladder Installat on
If your unit is accessorized with an external service platform assembly with a vertical ladder, this equipment is shipped in the basin
of your unit. In some cases, they are shipped separately due to other basin accessories that may interfere with storage. The
platform is partially assembled prior to shipment to minimize field assembly.
Typically, there is one working platform and ladder assembly per fan section. Refer to your factory submittal for details.
The platform and ladder assembly should be attached after the unit is fully rigged, by following the instructions in the
drawing below.
Figure 26 - Platform Mounting General Arrangement
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