EVAPCO PMC-E User manual

Rigging
Assembly
Instructions
&
PMC–E
FORCED DRAFT,
EVAPORATIVE
CONDENSERS
BULLETIN 125D

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PMC-E FORCED DRAFT EVAPORATIVE CONDENSERS
Table of Contents
Method of Shipment . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Storage. . . . . . . . . . .. . . . . .. . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
General . . .. . .. . . . . . . . . . . . .. . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . .4
International Building Code Provisions .. . . . . . . .. . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . .4
Structural Steel Support. . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . .4-5
Rigging the Basin/Fan Section —Standard Lift . . . . . . . . .. . . . . . . . . . . . . . .. . .. . . . . . . . . . . . . . .5-6
Rigging the Basin/Fan Section —Extended Lift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Applying Sealer Tape . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Rigging the Coil Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-8
Assembly of the Coil Section to the Basin/Fan Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Optional Straight-Sided Hood Section. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-11
Rigging Hardware Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Field Assembly of External Service Platform and Ladder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Final Assembly and Startup Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
The PMC SERIES FORCED DRAFT EVAPORATIVE CONDENSERS should be
rigged and assembled using the instructions and recommendations
outlined in this bulletin.
All personnel should review these procedures, as well as the latest industry-approved
Installation practices, prior to rigging and assembly. The information in this bulletin is
for informational purposes only. These instructions do not purport to cover all variations
and possible contingencies in connection with installation. Additionally, the procedures
described therein are subject to change without prior notice, due to EVAPCO, Inc.’s
ongoing research and development.
EVAPCO, Inc. makes no representations or warranties with respect to these instructions
or the products described herein. Nor shall EVAPCO, Inc. be responsible for any loss or
damage (direct, indirect, consequential, or other) during installation or handling of
equipment after shipment.
For a full description of EVAPCO’s liability policy, please visit www.evapcoasia.com to access our
Terms and Conditions.

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PMC-E FORCED DRAFT EVAPORATIVE CONDENSERS
TECHNOLOGY FOR THE FUTURE, AVAILABLE TODAY
Visit EVAPCO’s Website at: http://www.evapcoasia.com
EVAPCO Asia/Pacific
1159 Luoning Rd, Baoshan Industrial Zone, Shanghai, China 200949
PHONE: [phone] ∙ FAX: [phone] ∙ E-MAIL: [e-mail]
FOR EVPCO AUTHORIZED
PARTS AND SERVICE,
CONTACT YOUR
LOCAL EVAPCO
REPRESENTATIVE
OR THE LOCAL
SERVICE CENTER

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PMC-E FORCED DRAFT EVAPORATIVE CONDENSERS
Method of Shipment
Forced draft units are shipped either fully assembled (small units) or with the coil section(s) separate
from the basin/fan 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.
NOTE: All casing sections are factory inspected prior to shipment to verify proper fit for rigging.
Please take extra care to handle and rig each 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.
Storage
Do not place tarps or other coverings over the top of the units if the units are to be stored before
installation. Excessive heat can build up if the units are covered causing possible damage to the PVC
eliminators. For extended storage beyond six months rotate the fan and fan motor shaft(s) monthly.
Also, the fan shaft bearings should be purged and regreased prior to startup.
General
For extended lifts, or where hazards may exist, it is recommended that safety slings and spreaders be
employed for safety. Refer to the extended lift information in this bulletin.
International Building Code Provisions
The International Building Code (IBC) is a comprehensive set of regulations addressing the structural
design and installation requirements for building systems–including HVAC and industrial
refrigeration equipment. Since June 2008, all 50 states plus Washington, D.C. have adopted the
International Building Code. The code provisions require that evaporative cooling equipment and all
other components permanently installed on a structure must meet the same seismic design criteria
as the building. The PMC-E condensers are compliant with the latest IBC codes.
All items attached to the EVAPCO PMC-E evaporative condenser must be independently reviewed
and isolated to meet applicable wind and seismic loads. This includes piping, ductwork, conduit, and
electrical connections. These items must be flexibly attached to the EVAPCO unit so as not to
transmit additional loads to the equipment as a result of seismic or wind forces.
Structural Steel Support
Two structural I-beams running the length of the unit are required for supporting the unit. These
beams should be located underneath the outer flanges of the unit as shown in Figure 1. See Table 1
for steel support dimensions.
Mounting holes, 3/4”(19mm) in diameter, are located in the bottom flange for bolting to the struc-
tural steel. Refer to the recommended structural steel support drawing and certified print for exact
bolt hole location. Bolt the basin/fan section to the steel support before rigging the coil section.
Beams should be sized in accordance with accepted structural practices. Maximum deflection of the
beam under the unit should be 1/360 of the unit length, not to exceed 1/2”(13mm). Deflection may
be calculated by using 55% of the operating weight as a uniform load on each beam (see certified
print for operating weight).

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PMC-E FORCED DRAFT EVAPORATIVE CONDENSERS
The supporting I-beams should be level to within 1.5mm in 1m before setting the unit. Do not level
the unit by shimming between the bottom flange and the beams as this will not provide proper
longitudinal support.
NOTE: Consult the latest version of the IBC code for required steel support layout and structural
design.
Table 1 –Steel Support Dimensions
Box Size (m) A (mm) B (mm)
1.5m Wide Models
1.5 x 3.6 3648 1930
1.5 x 5.4 5490 1930
3m Wide Models A (mm) B (mm)
3 x 3.6 3651 2991
3 x 5.4 5490 2991
3 x 7.2 7337 2991
3 x 11 11024 2991
3.6m Wide Models A (mm) B (mm)
3.6 x 3.6 3651 3616
3.6 x 5.4 5490 3616
3.6 x 6 6102 3616
3.6 x 7.2 7337 3616
3.6 x 11 11024 3616
3.6 x 12.2 12243 3616
Plan View
End Elevation
Figure 1 –Structural Steel Support
(See Table 2 for model numbers corresponding to box size)
Rigging the Basin/Fan Section —Standard Lift
U-bolts or similar lifting points are located in the basin/fan section for lifting and final positioning
purposes as shown below in Figures 2 and 3. Units with lengths up to 6m have 4 total lift points.
Units with lengths over 6m long units have either 6 or 8 lift points. See Table 2 for the minimum
“H” dimensions for rigging the basin/fan assembly. Always use safety slings for extended lifts or
where any hazard exits. See the “Extended Lifts” section in this bulletin.
NOTE: Use all of the U-bolts or lift points provided for lifting.
LIFTING
U-BOLTS
LIFTING
U-BOLTS
Figure 2 –Basin/Fan Section (up to 6m Long) Figure 3 –Basin/Fan Section (Over 6m Long)

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PMC-E FORCED DRAFT EVAPORATIVE CONDENSERS
Box Size (m) Model Numbers “H” Dimensions (m)
1.5m Wide Models
1.5 x 3.6 PMC-175E to 240E 3.6
1.5 x 5.4 PMC-250E to 375E 5.2
3m Wide Models
3 x 3.6 PMC-332E to 530E 4.3
3 x 5.4 PMC-503E to 792E 5.4
3 x 7.2 PMC-725E to 1056E 7
3 x 11 PMC-1006E to 1586E 10
3.6m Wide Models
3.6 x 3.6 PMC-376E to 640E 4.6
3.6 x 5.4 PMC-568E to 955E 5.8
3.6 x 6 PMC-715E to 1013E 6
3.6 x 7.2* PMC-752E to 1286E 7
3.6 x 11 PMC-1137E to 1911E 10
3.6 x 12.2 PMC-1705E to 2019E 11
Table 2 –Minimum “H” Dimension for the Basin/Fan Section Rigging (Standard Lift)
* This box size has two 3.6m long coil sections
Rigging the Basin & Fan Section —Extended Lift
The recommended method for extended lifts is to use slings under the unit as shown in Figure 4.
Spreader bars should always be used between the cables at the top of the section to prevent damage
to the upper flanges. See Table 3 for the minimum “H” dimensions for rigging the basin/fan
assembly.
NOTE: The U-bolts or other lifting points should be used for final positioning only and for lifting
where no danger exists. If they are used for extended lifts, safety slings and spreader bars
should be provided under the sections as shown.
Safety slings, spreaders, and skids should be removed before final positioning of the unit.
Box Size (m) “H” Dimensions (m)
1.5m Wide Models
1.5 x 3.6 3.6
1.5 x 5.4 5.2
3m Wide Models
3 x 3.6 4.3
3 x 5.4 5.4
3 x 7.2 7
3 x 11 10
3.6m Wide Models
3.6 x 3.6 4.6
3.6 x 5.4 5.8
3.6 x 6 6
3.6 x 7.2* 7
3.6 x 11 10
3.6 x 12.2 11
Table 3 –Minimum “H” Dimension for the Basin/Fan
Section Rigging (Extended Lift)
(See Table 2 for model numbers corresponding to box size)
76mm X 200mm
SPREADERS SAFETY
SLING
SAFETY SLING
Figure 4 –Proper Rigging Method for Extended Lifts

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PMC-E FORCED DRAFT EVAPORATIVE CONDENSERS
Applying Sealer Tape
Once the bottom section has been set on the supporting steel and bolted in place, wipe the top
flanges to remove any dirt or moisture. Place sealer tape over the mounting hole centerline on the
side flanges. Apply two strips of sealer tape, one partially overlapping the other, on the end
flanges. (NOTE: Sealer tape is applied completely around the perimeter of the section.)
The sealer tape should overlap on the corners as shown in Figure 5. 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.
For units which have two or more coil sections, sealer tape must be applied to all internal flanges
(Figure 6).
SEALER TAPE
SEALER TAPE
SEALER TAPE
SEALER TAPE
SIDE FLANGE
SIDE
FLANGE
SIDE FLANGE
END
FLANGE
Figure 5 –Proper Sealer Tape Application Figure 6 –Sealer Detail for Center Joint of Units
with Two or More Coil Sections
Rigging the Coil Section
U-bolts or lift points are located inside the casing on the four corners of the coil for small single coil
sections. These lift points are for lifting and final positioning (Figure 7). On larger coil sections, the
lifting points are on the outside of the casing section (Figures 8 and 9).
The end and center eliminator sections on small, single coil sections should be removed before lifting
from the U-bolts or lift points.
See Table 4 for the minimum “H” dimensions for rigging the coil section. Always use safety slings
for extended lifts or where any hazard exits. See the “Extended Lifts” section in this bulletin.
NOTE: Use all of the U-bolts or lift points provided for lifting.
CAUTION: On units shipped as two separate sections, do not assemble sections and attempt to
lift the entire unit. The U-bolts and lift points are designed to carry only the weight of their
individual section.

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PMC-E FORCED DRAFT EVAPORATIVE CONDENSERS
Box Size (m) “H” Dimensions (m)
1.5m Wide Models
1.5 x 3.6 3.6
1.5 x 5.4 5.2
3m Wide Models
3 x 3.6 4.3
3 x 5.4 2.7
3 x 7.2 7
3 x 11 5.2
3.6m Wide Models
3.6 x 3.6 4.6
3.6 x 5.4 2.7
3.6 x 6 3
3.6 x 7.2 7
3.6 x 11 5.2
3.6 x 12.2 5.8
Table 4 –Minimum “H” Dimension for Coil Section
(See Table 2 for model numbers corresponding to box size)
ANGLE WITH
HORIZONTAL
MUST
EXCEED 60°
COIL
LIFTING
U-BOLTS
Figure 7 –Small, Single Coil Sections
BOX SIZES:
1.5m x 3.6m
1.5m x 5.4m
Figure 8 –Large Coil Section (3.6m Long Sections)
BOX SIZES:
3m x 3.6m
3m x 7.2m
3.6m x 3.6m
3.6m x 7.2m
Figure 9 –Large Coil Section (5.5m Long and Up)
BOX SIZES:
3m x 5.4m, 3m x 11m
3.6m x 5.4m, 3.6m x 6m
3.6m x 11m, 3.6m x 12.2m

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PMC-E FORCED DRAFT EVAPORATIVE CONDENSERS
Assembly of the Coil Section to the Basin/Fan Section
Before assembling the coil section to the cold water basin/fan section, remove any loose parts
shipped in the basin.
Wipe the flanges on the bottom of the coil section. Check to see that the water distribution
connection on the coil section is in the correct position relative to the basin/fan section (see certified
print). Confirm that sealer tape has been applied to the top of the basin/fan section as shown in
Figures 5 and 6.
Lower the coil section to within several inches of the basin/fan section, making sure the two sections
do not touch and the sealer tape is not disturbed. Place drift pins (see Figure 12 and 13) in at least
three (3) of the corner mounting holes and gradually lower the coil section into place using the drift
pins to guide the section down accurately onto the mating flange. On long sections, 5.4m and longer,
drift pins should be used midway along the sides as well.
Place fasteners in all four (4) corner bolt holes. Then, continue to install the rest of the fasteners
working from the corners toward the center, using drift pins to align the holes. A fastener must be
installed in every hole on the side flanges, although none are required on the end flanges.
For units with two coil sections, mount the first as described, and then follow the same procedure for
the second section.
USE FOR
5.4m AND
LARGER
DRIFT
PIN
DETAIL A
DETAIL B
DETAIL A
DETAIL B
USE FOR
5.4m AND
LARGER
Figure 12 –Mating Coil Section to
Basin/Fan Section Figure 12 –Mating Coil Section to
Basin/Fan Section
BOX SIZES:
1.5m x 3.6m
1.5m x 5.4m
BOX SIZES:
3m x 3.6m
3m x 5.4m
3m x 7.2m
3m x 11m
3.6m x 3.6m
3.6m x 5.4m
3.6m x 6m
3.6m x 7.2m
3.6m x 11m,
3.6m x 12.2m

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PMC-E FORCED DRAFT EVAPORATIVE CONDENSERS
Optional Straight-Sided Hood Section
Some units may be supplied with an optional discharge hood section. This section will ship from the
factory as a separate item or loosely mounted on top of either the basin and fan section or coil
section to reduce freight charges. Each hood section is equipped with U-bolts located at the four
corners for lifting and final positioning (Figure 14). Always use safety slings for extended lifts or
where any hazard exists.
NOTE: When combined with other sections, the hood must be removed prior to any lift. In all
cases the hood section must be rigged as a separate part.
Once the coil section has been secured to the basin and fan section, wipe the top flanges to remove
any dirt or moisture. Place sealer tape over the mounting hole centerline on the side flanges. Apply
two strips of sealer tape, one partially overlapping the other, on the end flanges as shown in Figures
5 and 6. Remove any shipping blocks or other obstructions. Lower the hood onto the top flange of
the coil section.
Install the retainer clips in all four corners as shown in Figure 14. For 5,4m-long hoods, two (2)
additional clips are provided and are to be fastened in the middle of each side.
NOTE: Always lift the hood separately and follow the rigging sequence shown.
ANGLE WITH
HORIZONTAL
MUST
EXCEED 60°
LIFTING
U-BOLTS
DETAIL A
011-00539P
10mmØ X 25.4mm LG BOLT DAC
011-00502P
10mmØ FLAT WASHER
011-00250P
10mmØ NUT LOCK
Figure 14 –Discharge Hood Rigging and Assembly (Shown without Dampers)
See Table 6 for the minimum “H” dimensions for rigging the discharge hood for both standard and
extended lifts.

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PMC-E FORCED DRAFT EVAPORATIVE CONDENSERS
Table 6 –Minimum “H” Dimension for Rigging Discharge Hoods and Discharge Attenuation
Rigging Hardware Parts List
The following table lists those parts which are shipped together with the unit(s) for field assembly.
Box Size (m) “H” Dimensions (mm)
1.5m Wide Models
1.5 x 3.6 3073
1.5 x 5.4 4674
3m Wide Models
3 x 3.6 3073
3 x 5.4 4674
3 x 7.2 3073
3 x 11 4674
3.6m Wide Models
3.6 x 3.6 3073
3.6 x 5.4 4674
3.6 x 6 5207
3.6 x 7.2 3073
3.6 x 12.2 5207
(See Table 2 for model numbers corresponding to box size)
Box Size (m) Bolt 1Lock Nut 1Washer 1Sealer Tape
1.5 x 3.6 14 14 28 3
1.5 x 5.4 16 16 28 3
3 x 3.6 14 14 28 4
3 x 5.4 16 16 32 5
3 x 7.2 28 28 56 8
3 x 11 32 32 64 10
3.6 x 3.6 14 14 28 5
3.6 x 5.4 16 16 32 6
3.6 x 6 16 16 32 6
3.6 x 7.2 28 28 56 10
3.6 x 11 32 32 64 12
3.6 x 12.2 32 32 64 12
Table 7 –Parts Shipped with Unit(s) by Box Size
(See Table 2 for model numbers corresponding to box size)
1 5/16”Diameter Hardware

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PMC-E FORCED DRAFT EVAPORATIVE CONDENSERS
Field Assembly of External Service Platform and Ladder
The external service platform and ladder assemblies are shipped separate from the unit. The platform
is partially assembled prior to shipment to minimize field assembly. The platform and ladder assem-
bly should be attached after the unit is fully rigged following the instructions below in Figure 15.
DETAIL A
SECURE DECK
SUPPORT TO
CONNECTION
PLATES WITH 15.9mm
GRADE 5 HARDWARE
SECURE DIAGONAL
SUPPORT TO DECK
SUPPORT USING
15.9mm GRADE 5
HARDWARE
CONNECTION
PLATE
DECK SUPPORT
DECK SUPPORT
DIAGONAL SUPPORT
DETAIL B
SECURE DIAGONAL
SUPPORT TO CONNECTION
PLATE WITH 15.9mm
GRADE 5 HARDWARE
DIAGONAL
SUPPORT
CONNECTION
PLATE
RAILING FITTING
SECURE RAILING
FITTING TO FRONT
TOEPLATE USING
15.9mm GRADE 5
HARDWARE
FRONT TOEPLATE
DETAIL C DETAIL D
NOTE: PLATFORM GRADING NOT SHOWN FOR CLARITY
Figure 15 –Field Assembly of External Service Platform and Ladder

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PMC-E FORCED DRAFT EVAPORATIVE CONDENSERS
Final Assembly and Startup Details
Shipping Materials - Remove any wood chocks, spare parts, or miscellaneous items that have been
placed inside the unit for shipping purposes. Clean all debris from the basin.
Pump Discharge Line - Connect the riser pipe from the pump discharge on the basin and fan section
to the riser pipe on the coil section using the flexible connection and hose clamps provided.
Bleed-off Line - A bleed-off line and valve are installed on the unit when shipped with a pump. On
units shipped without a pump (remote sump applications) make sure a bleed-off line and valve are
properly sized and installed on the discharge side of the pump and connected to a convenient drain.
In either case, the bleed-off valve should be fully open.
Strainer - Remove the strainer and inspect for any debris which may have accumulated below the
suction hood. Reinstall the strainer in the basin to ensure that it is in its proper location over the
pump suction.
Screens - Protective air inlet screens are provided across the front of the fan section of all models.
Screens are not provided on the bottom of the fan section since most of the units are mounted on
steel beams, either on the roof or at ground level. If units are installed in an elevated position, bottom
screens are recommended for safety protection and should be provided by the installing contractor.
Float Valve Adjustment - The float valve is preset at the factory; however, adjustment should be
checked after rigging. At initial startup, the water level should be adjusted so that the center of the
float is 25mm below the center of the overflow connections when the valve is in the fully closed posi-
tion. Raise or lower the float by using the wing nuts on the vertical threaded rod. Do not adjust the
horizontal rod. During normal operation, when the unit is under load, the water level should be ad-
justed so that the operating level is 76mm to 100mm below the overflow.
Fan Rotation - Bump start and check the fans for proper rotation. Directional arrows are placed on
the inside of the axial fan cylinders.
Pump Rotation - After filling the basin to overflow with fresh water, bump start and check the pump
for proper rotation. Directional arrows are found on the pump impeller housing.
Maintenance
Once installation is complete and the unit is turned on, it is important that it be properly maintained.
Maintenance is not difficult or time consuming, but must be done regularly to assure maximum
trouble free performance of the unit. Refer to the Operation and Maintenance Instructions enclosed
with the unit for proper maintenance procedures.
Also, proper freeze protection must be provided if the unit is located in a cold climate. Refer to the
factory supplied Operation and Maintenance Instructions and Checklist, as well as factory product
bulletins for further information.

14
PMC-E FORCED DRAFT EVAPORATIVE CONDENSERS
NOTES

15
PMC-E FORCED DRAFT EVAPORATIVE CONDENSERS
NOTES

EVAPCO ASIA PACIFIC • 1159 Luoning Rd, Baoshan Industrial Zone, Shanghai, China 200949
PHONE: [phone] • FAX: [phone] • E-MAIL: marke[email protected]