Cumberland MEGA-COOL User manual

Manual Part No. 4801-5120 Rev 1-2020
MEGA-COOL
Evaporative Cooling Systems
Cumberland
1004 E. Illinois St.
Assumption, IL 62510

Part No. 4801-5120 Rev. 1-2020 Mega-Cool System Page 2 of 48
Table of Contents
Description Page
Limited Warranty.........................................Error! Bookmark not defined.
Tools Required..............................................................................................4
Purpose of Evaporative Cooling...................................................................4
Description of System...................................................................................4
In-Line System Configuration Options.........................................................5
Sump Pump System Configuration Options.................................................6
Installation Cross-Section (Systems Up To 80 ft.)........................................7
Installation Cross-Section (Systems 10' to 120')...........................................8
Framing.........................................................................................................9
8"Pipe Support Brackets............................................................................10
Install 8" (20.3 cm) PVC Pipe ....................................................................11
Cut Pipe to Allow for Pads.........................................................................12
Install Bottom Flashing and Drip Rails ......................................................13
Install PVC End Caps.................................................................................14
Install Removable End Cap ........................................................................15
Install BackPlate.........................................................................................16
Assembly of BackPlate...............................................................................16
Install Spray Line Support Brackets...........................................................17
Install Spray Line........................................................................................18
Install Splash Guards..................................................................................19
Install Cool Pads & Front Covers...............................................................20
Assemble End Caps....................................................................................21
Install System End Caps.............................................................................22
Install In-Line Pump Platform....................................................................23
Install In-Line Pump and Assemble Supply Line.......................................24
Connect In-Line Pump to Spray Line.........................................................25
Add Ball Valve to End................................................................................26
Float Valve Tank Assembly .......................................................................27
Mega-Cool 10'-120' Straight Span, Center-Mount In-Line Pump System..28
Mega-Cool 10'-80' Corner, End-Mount In-Line Pump System..................29
Mega-Cool 10'-120' Corner, Center-Mount In-Line Pump System............30
Flush System –In-Line Pump (End Mount Systems up to 80 ft.)..............31
Mega-Cool 10'-80' Straight, End-Mount Sump Pump................................33
Mega-Cool 10'-80' Straight, Center-Mount Sump Pump............................36
Pump Wiring Diagrams..............................................................................39
Operation....................................................................................................40
Cumberland Mega-Cool Checklist .............................................................41
Cleaning Mega-Cool System......................................................................41
Winterizing Mega-Cool System .................................................................41
Mega-Cool Replacement Parts ...................................................................43
Mega-Cool Kits ..........................................................................................45

Part No. 4801-5120 Rev. 1-2020 Mega-Cool System Page 3 of 48
Limited Warranty - Protein Products
The GSI Group, LLC. (“GSI”) warrants products which it manufactures, to be free of defects in materials
and workmanship under normal usage and conditions for a period of 12 months from the date of purchase
(or, if shipped by vessel, 14 months from the date of arrival at the port of discharge). If, in GSI’s sole
judgment, a product is found to have a defect in materials and/or workmanship, GSI will, at its own option
and expense, repair or replace the product or refund the purchase price. This Limited Warranty is subject
to extension and other terms as set forth below.
Warranty Enhancements:The warranty period for the following products is enhanced as shown below and is in
lieu of (and not in addition to) the above stated warranty period.
Product
Warranty Period
AP® Fans
Performer Series Direct Drive Fan Motor
3 Years
AP® and Cumberland®
Flex-Flo/Pan Feeding System Motors
2 Years
Electronic Controls
All Protein controls manufactured by GSI
24 Months from date
code on part
Cumberland®
Feeding and Watering
Systems
Feeder System Pan Assemblies
5 Years, prorated **
Feed Tubes (1.75" and 2.00")
10 Years, prorated *
Centerless Augers
10 Years, prorated *
Watering Nipples
10 Years, prorated *
Conditions and Limitations:
THERE ARE NO WARRANTIES THAT EXTEND BEYOND THE LIMITED WARRANTY DESCRIPTION SET FORTH
HEREIN; SPECIFICALLY, GSI DISCLAIMS ANY AND ALL OTHER WARRANTIES OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING, WITHOUT LIMITATION, WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE OR USE IN CONNECTION WITH: (I) ANY PRODUCT MANUFACTURED OR SOLD BY GSI,
OR (II) ANY ADVICE, INSTRUCTION, RECOMMENDATION OR SUGGESTION PROVIDED BY AN AGENT,
REPRESENTATIVE OR EMPLOYEEOF GSI REGARDING OR RELATEDTOTHE CONFIGURATION, INSTALLATION,
LAYOUT,SUITABILITY FOR A PARTICULAR PURPOSE, OR DESIGN OF SUCH PRODUCTS.
The sole and exclusive remedy for any claimant is set forth in this Limited Warranty and shall not exceed the amount paid
for the product purchased. This Warranty only covers the value of the warranted parts and equipment, and does not cover
labor charges for removing or installing defective parts, shipping charges with respect to such parts, any applicable sales
or other taxes, or any other charges or expenses not specified in this Warranty. GSI shall not be liable for any other direct,
indirect, incidental or consequential damages, including, without limitation, loss of anticipated profits or benefits. Expenses
incurred by or on behalf of a claimant without prior written authorization from the GSI warranty department shall not be
reimbursed. This warranty is not transferable and applies only to the original end user. GSI shall have no obligation or
responsibility for any representations or warranties made by or on behalf of any dealer, agent or distributor. Prior to
installation, the end user bears all responsibility to comply with federal, state and local codes which apply to the location
and installation of theproducts.
This Limited Warranty extends solely to products sold by GSI and does not cover any parts, components or materials
used in conjunction with the product, that are not sold by GSI. GSI assumes no responsibility for claims resulting from
construction defects, unauthorized modifications, corrosion or other cosmetic issues caused by storage, application or
environmental conditions. Modifications to products not specifically delineated in the manual accompanying the product at
initial sale will void all warranties. This Limited Warranty shall not extend to products or parts which have been damaged
by negligent use, misuse, alteration, accident or which have been improperly/inadequately maintained.
Service Parts:
GSI warrants, subject to all other conditions described in this Warranty, Service Parts which it manufactures for a period of
12 months from the date of purchase, unless specified in Enhancements above. Parts not manufactured by GSI will carry
the Manufacturer’s Warranty.
(Protein LimitedWarranty_REV01_ 06 November 2018)
* Warranty prorated from material list price:
0 to 3 years - no material cost to end user
3 to 5 years - end user pays 25%
5 to 7 years - end user pays 50%
7 to 10 years - end user pays 75%
** Warranty prorated from material list price:
0 to 3 years - no material cost to end user
3 to 5 years - end user pays 75%

Part No. 4801-5120 Rev. 1-2020 Mega-Cool System Page 4 of 48
Tools Required
TOOLS REQUIRED
PVC piping glue
PVC piping cutter
PVC Pipe Cleaner
Circular Saw
Ladder 8’ Step
Tape Measure
Level
Chalk line
Wrench
Hammer
Hammer
Hammer
Phillip Head Screwdriver and/or bit for Drill
Nut Driver Set
Purpose of Evaporative Cooling
Evaporative cooling is a time tested efficient means of reducing air temperature
by drawing incoming air across a wetted surface. Evaporative cooling is
especially useful in situations where air inside the space is not re-circulated.
The efficiency and the cooling ability evaporative cooling possesses makes it a
wise choice for agricultural and horticultural buildings.
Theory
Evaporative cooling needs only two factors to work, water and moving air.
When air is moved across a wet surface, some of the water on the surface
evaporates. This action draws heat from the moving air, cooling and
humidifying the incoming air.
Description of System
Mega-Cool is the brand name of evaporative cooling system from Cumberland.
Each Mega-Cool system uses a continuous bank of evaporative cooling pads and
water to cool incoming air.
Mega-Cool evaporative cooling systems may be broken down into individual
groups. The basic groups are defined by their collective purposes. These
groups are: reservoir, fill line, in-line pump kit, sump pump kit, supply line,
spray line, and pads.
Reservoir The reservoir serves a dual purpose. It holds the water supply for the
pump, and collects the water returning from the pads. It consists of
eight inch (20.3 cm ) PVC piping.
Fill line The fill line supplies make up water to the system.
In-Line Pump kitThe pump kit includes the In-Line Pump, shutoff valves, bleed off
line, and strainer. This section provides the force for moving water
from the reservoir to the supply line.
Supply line The supply line carries water from the In-Line Pump kit to the spray
line. This section is made of one and a half inch (3.8 cm) PVC
piping and various fittings.
Spray line The spray line is constructed of 1-1/4" inch (3.2 cm) PVC pipe with
holes drilled in the line along the top. These holes are drilled a
certain distance apart depending on the size of pad you have. When
water is pumped to the spray line, water shoots out the holes onto the
distribution plate, then drops into the pads.
Pads Constructed of cellulose fibers formed into corrugated blocks. When
water flows down the system, and air is drawn through the pads, the
air evaporates some of the water, becoming much cooler. When the
water reaches the bottom of the pads, it drips back into the reservoir.
Air Flow
Air Flow

Part No. 4801-5120 Rev. 1-2020 Mega-Cool System Page 5 of 48
In-Line System Configuration Options
The Mega-Cool system can be mounted in various setup configurations
depending on the application requirements. Know the application requirements
before starting the Mega-Cool installation.
The step-by-step details will vary slightly with different setup options. The
main portion of the step-by-step instructions refer to the most commonly used
straight systems. Refer to the system specific figures for additional details.
Some of the pads have been removed from the figures for clarity.
Examples of application configurations:
10’-80’ System Straight,
End-Mount, In-Line Pump
10’-120’ System Straight, Center-
Mount, In-Line Pump
Pads
Removed for
Clarity
10’-80’ System Corner,
End-Mount, In-Line Pump
Pads
Removed for
Clarity
NOTE for CORNER APPLICATIONS:
If the two sections are not equal in
length, the pump should mount on
the long side.
10’-120’ System Corner, Center-
Mount, In-Line Pump

Part No. 4801-5120 Rev. 1-2020 Mega-Cool System Page 6 of 48
Sump Pump System Configuration Options
10’-80’ System Straight,
End-Mount, Sump Pump
10’-120’ System Straight, Center-
Mount, Sump Pump
Pads not
shown for
clarity
Ground
level
Pads not
shown for
clarity
Ground
level
The Mega-Cool system can be mounted in two sump pump configurations
depending on the application requirements. Know the application
requirements before starting the Mega-Cool installation.
Some of the pads have been removed from the figures for clarity.
Refer to the system specific figures for additional details.
Examples of sump pump application configurations:

Part No. 4801-5120 Rev. 1-2020 Mega-Cool System Page 7 of 48
Installation Cross-Section (Systems Up To 80 ft.)
1. Drawing shown to the right is an overview of a
completed Mega Cool System without the left end cap.
2. The figure details the overall dimensions for each
pad system and minimum clearance from roof.
NOTE: 2x6 refers to U. S. finished
lumber measurements.
Dimension ("A")
(6” PAD)
(4” PAD)
4 ft Pad
61 1/8 in.
155.23 cm
62 1/8 in.
157.80 cm
5ft Pad
73 1/8 in.
185.74 cm
74 1/8 in.
188.23 cm
6ft Pad
85 1/8 in.
216.22 cm
86 1/8 in.
218.76 cm
Rough Opening Dimension ("B")
(6” PAD)
(4” PAD)
4 ft Pad
49 1/8 in.
124.78 cm
50 1/8 in.
127.32 cm
5ft Pad
61 1/8 in.
155.26 cm
62 1/8 in.
157.80 cm
6ft Pad
73 1/8 in.
185.74 cm
74 1/8 in.
188.23 cm
Dimension ("C")
(6” PAD)
(4” PAD)
4 ft Pad
50 1/8 in.
127.32 cm
51 1/8 in.
129.85 cm
5ft Pad
62 1/8 in.
157.80 cm
63 1/8 in.
160.34 cm
6ft Pad
74 1/8 in.
188.28 cm
75 1/8 in.
190.82 cm
Splas
h
Guar
d
Supp
ort
Brac
ket
Pa
d
Bott
om
Brac
ket
2 x
4"
boar
d
"
A
"
"
B
"
Po
st
Minim
um
Cleara
nce
6
inches
from
roof
2 x
6"
Boar
d
(Opt
ional
)
See
Framing
Diagram
Bac
kpla
te
Dri
p
Rai
l
Cov
er
Framing Diagram For Systems Up To 80 Ft.
Splash Guard
"A"
Minimum
Clearance
6 inches
from roof
Drip
Rail
Cover
Back-Plate
Post
Pad
(End Cap
not shown)
Back-Plate
Support
Bracket
Splash Guard
Support Bracket
2" x 6" Board or
Equivalent
or Steel Equivalent. See Page 5.
8” Pipe Support
Bracket
Bottom
Flashing
9.5" (24.1 cm) Minimum
Pad Height
12"(30.5 cm) for 4" pad
11"(27.9 cm) for 6" pad
"B"
Rough Opening
"C"
Note: Air Flow
up behind
Back Plate
between
posts.
6"
Post
Back-Plate
Support
Bracket
Overall

Part No. 4801-5120 Rev. 1-2020 Mega-Cool System Page 8 of 48
Installation Cross-Section (Systems 10'to 120')
NOTE: 2x6 refers to U. S. finished
lumber measurements.
Splas
h
Guar
d
Supp
ort
Brac
ket
Pa
d
Bott
om
Brac
ket
2 x
4"
boar
d
"
A
"
"
B
"
Po
st
Minim
um
Cleara
nce
6
inches
from
roof
2 x
6"
Boar
d
(Opt
ional
)
See
Framing
Diagram
Bac
kpla
te
Dri
p
Rai
l
Cov
er
Framing Diagram For 10' To 120 Ft. Center-Mount Systems
Splash Guard
Minimum Clearance
6 inches from roof
Cover
Splash Guard
Support
Bracket
Back-Plate
Support Bracket
Drip Rail
8” Pipe
Support
Bracket
2" x 6" Board or Equivalent
or Steel Equivalent. See Page 5.
BackPlate
Post
Pad
(End-Cap
not shown)
"A"
Pad Height
Bottom
Flashing
12"(30.5 cm) for 4" pad
11"(27.9 cm) for 6" pad
18" (45.7 cm)
(Minimum)
"B"
9.5" (24.1 cm) Minimum
Rough Opening
"C"
1. Drawing shown to the right is an overview of
a completed Mega Cool Center-Mounted Pump
System without the left end cap.
2. The figure details the overall dimensions for
each pad system and minimum clearance from
roof.
Dimension ("A")
(6” PAD)
(4” PAD)
4 ft Pad
61 1/8 in.
155.23 cm
62 1/8 in.
157.80 cm
5ft Pad
73 1/8 in.
185.74 cm
74 1/8 in.
188.23 cm
6ft Pad
85 1/8 in.
216.22 cm
86 1/8 in.
218.76 cm
Rough Opening Dimension ("B")
(6” PAD)
(4” PAD)
4 ft Pad
49 1/8 in.
124.78 cm
50 1/8 in.
127.32 cm
5ft Pad
61 1/8 in.
155.26 cm
62 1/8 in.
157.80 cm
6ft Pad
73 1/8 in.
185.74 cm
74 1/8 in.
188.23 cm
Dimension ("C")
(6” PAD)
(4” PAD)
4 ft Pad
50 1/8 in.
127.32 cm
51 1/8 in.
129.85 cm
5ft Pad
62 1/8 in.
157.80 cm
63 1/8 in.
160.34 cm
6ft Pad
74 1/8 in.
188.28 cm
75 1/8 in.
190.82 cm
Splash Guard
Support Bracket
Shown with In-Line
Pump Option
Framing Diagram
Note: Air Flow
up behind
Back Plate
between
posts.
Post
Back-
Plate
Support
Bracket
6"
Overall

Part No. 4801-5120 Rev. 1-2020 Mega-Cool System Page 9 of 48
NOTES:
In-Line Pump location will vary depending on setup option.
Pads come in 4 ft, 5 ft, or 6 ft Heights; Pads come in 4 inch or 6 inch
thickness.
Framing
1. Refer to Page 3 and 4 Installation Cross-Section for the framing dimensions of the pads you
are installing.
2. Make opening in wall equal to the length of pad and the height of pad.
3. Frame the opening with treated lumber as shown above. Make sure boards are level.
NOTE: Use steel equivalent to frame opening if installing Mega-Cool system
to steel building.
Front View
2 x 6
board
(or steel
Equiv.)
4 x 4
post
(or steel
Equiv.)
End post of
system
Set posts on
5ft (1.5 m)centers
5 ft. (1.5 m)
center-to-center
2x6" FILLER BOARDS
2x6" filler boards are
necessary to secure the
bottom flashing to the
wall.
The bottom flashing
serves as a splash-guard
and fills the gap for
improved air flow.
Fit 2x6" filler boards in
between posts and flush
with front of posts.
Attach
Bottom
Flashing. *

Part No. 4801-5120 Rev. 1-2020 Mega-Cool System Page 10 of 48
8"Pipe Support Brackets
1. Install the 8"pipe support brackets so the system will have 1"of drop toward the In-Line Pump for proper water
supply. Determine the height at which the bottom of the MegaCool system should be mounted above the ground.
Make a mark on each end post to represent the height.
NOTE:If a Center-Mount In-Line Pump System is being installed, the support brackets should be MOUNTED LEVEL
WITHOUT THE 1"DROP
IMPORTANT: The height of the bottom of the System should be a minimum of 9 ½” inches above the ground in order to
elevate the pump above ground. Failure to do so may void the motor warranty.
2. Stretch chalk line between marks of end posts and mark all posts of system.
3. For each post of system, align bottom edge of metal support bracket with mark on post. Securely mount metal
support brackets on centers of 4x4" posts, not more than 5 ft. (1.52 m) O. C. (on center).
4. Secure metal support brackets to wooden posts with ¼ x 2" Lag screws, or secure metal support brackets to steel
posts with #14 x 1" Hex Head TEK screws.
Front View
Support
Brackets
Side View
End post at
float side of
system.
Support
Bracket

Part No. 4801-5120 Rev. 1-2020 Mega-Cool System Page 11 of 48
6. Assemble parts quickly. Cement must be fluid.
7. Insert pipe into socket using a 1/4 turning motion.
8. Hold pipe and fitting together for 30 seconds. Wipe off excess glue.
9. Wait 15 minutes before rough handling.
10. Do not apply fluid pressure until cement is fully cured (At least one
hour).
Install 8" (20.3 cm) PVC Pipe
1. Line up the 6.5” wide parallel dotted lines on the 8” (20.3 cm) PVC pipe and glue the
sections together with bell end toward pump end to make length of system. Center the
float valve tank between the dotted lines. Then glue float valve tank assembly to the
pipe. For example, for a system with 50’ of pad, the 8"pipe will be 53’ (2 ½ ft. on the
float tank end and 6 inches extending past the post on the opposite end.)
NOTE:If a Center-Mount In-Line Pump System is being installed, the 8” Tee should be
installed in the middle of the 8” pipe.
2. Place assembled pipe into brackets.
3. Adjust pipe assembly to extend end opposite pump 6” past the post.
Float Valve Tank
Assembly
8” Tee
(Center-Mount System ONLY)
1. Square ends of pipe.
2. Clean pipe and fitting with PVC cleaner.
3. Check dry fit of pipe and fitting.
4. Apply thin coat of cement inside of fitting. (Use care when
greater than 85F).
5. Apply liberal coating to outside of pipe to depth of socket.
Procedures for Gluing PVC Pipe
Front View
Side View
8”
(20.3 cm)
PVC Pipe
Assemble
Pipe with
Bell End
Towards
Float Valve
Tank

Part No. 4801-5120 Rev. 1-2020 Mega-Cool System Page 12 of 48
8” PVC Tee
(Center-Mount System
ONLY)
Cut Pipe to Allow for Pads
1. At each pipe joint, put self-tapping screws on each side of 6.5" wide
parallel dotted lines printed on the pipe, as shown in diagram at left.
2. Start cutting at least 2" (5 cm) from end of pipe as shown above. Cut
along the parallel dotted lines. Finish cuts at point where pads will stop.
NOTE: Do not cut pipe into Float Valve Tank slot. Stop 6” from Cover.
Do not cut pipe all the way to the end, as it will be impossible to
assemble the end cap!
3. Remove and discard cut-out section of PVC pipe.
4. If using 4" thick Pad, mark with chalk line, two parallel lines running
along the length of pipe. These lines should be at a distance apart of 4.5"
(11.43 cm) cm as measured along the outside of pipe. Then cut out
section of PVC pipe and follow note 2 and 3.
Stop cutting
6” from Float
Valve Cover
NOTE: When cutting pipe for
Center-Mount System,
ensure the 8” PVC Tee
and cut opening are at 90°
placement.
Put self-tapping screws on
each side of line at joints.
Opening in pipe is measured
along outside of pipe.
Side View
NOTE: Overlap joints of
pipe sections to make up
entire length of system.
Secure joints with screws as
shown.
6.5"(16.5 cm)for 6” thick PAD
4.5" (11.43 cm) for 4” thick PAD
Make cut
as shown
below.
Side View
Front View
Cut
reservoir
To length of
Pads.
Start cutting
2" (5.1 cm)
from outside
edge of
post.

Part No. 4801-5120 Rev. 1-2020 Mega-Cool System Page 13 of 48
Install Bottom Flashing and Drip Rails
1. Place bottom flashing and drip rails along the cut in the pipe as shown.
NOTE: If a Center-Mount In-Line Pump System is being installed, the high-
end drip rail should be installed as shown at left. The high-end drip
rail will ship with the center-mount In-Line Pump supply kit. Refer to
Supply Kit Numbers shown on Page 39.
2. Secure the bottom flashing to the columns and stringers as shown.
Front View
Side View
(Center-Mount System ONLY)
High-End Drip Rail for
Center-Mount 8” Tee
Place the short side
toward the wall.
Pipe
Screw
(Attach on 5’
Centers)
Drip Rail
Flashing
Secure Flashing
and Insert Drip
Rail Into Pipe)

Part No. 4801-5120 Rev. 1-2020 Mega-Cool System Page 14 of 48
End Cap Assembly
NOTE: End cap assembly shown above-right glues onto the pump
side of the reservoir.
End cap for connecting
reservoir to pump supply
line.
NOTE: Holes must be
pointed downward.
Rubber
Gasket
1028-5003
1½” Tank
Head
Adpt. Fitting
1021-6021
1 ½” Tank
Body
Adpt. Fitting
1021-6020
PVC Cap 1-1/2”
1021-6017
Pick-Up Pipe
1-1/2” x 2’
0406-5007
IMPORTANT!
Be sure to glue end cap
onto end of suction pipe!
This will affect the way
pump will prime!
End
Cap
Install PVC End Caps
1. Glue 1 ½"end cap of Pick-Up Pipe onto end of pipe as
shown in diagram above left. Rotate Pick-Up Pipe to orient
holes facing downward. Glue Pick-Up Pipe into pipe
adapter fitting on inside of end cap as shown above.
NOTE: If a Center-Mount In-Line Pump System is being
installed, the Pick-Up Pipe should be installed as shown
above.
2. Glue PVC end cap assembly into 'In-Line Pump side' of
reservoir.
IMPORTANT! Before gluing, rotate PVC end cap
assembly to place Pick-Up Pipe at bottom of reservoir.

Part No. 4801-5120 Rev. 1-2020 Mega-Cool System Page 15 of 48
Install Removable End Cap
1. Removable end cap should be installed on end opposite the pump side of the reservoir unless a Center-Mount System is
installed. Removable End-Caps should be installed on both ends if a Center-Mount system is used. DO NOT GLUE ON
REMOVABLE END-CAPS.Tighten worm gear clamp provided with Removable End-caps to pipe.
Removable End
Cap w/Clamp
(Do Not Glue)
Float Valve Tank
Assembly
2 ½ ft (76.2 cm)
beyond end post.
Pipe extended 6(15.2 cm)
beyond end post of system.

Part No. 4801-5120 Rev. 1-2020 Mega-Cool System Page 16 of 48
Install BackPlate
1. Refer to diagram at left. At end post of system on opposite end from float valve, measure dimension
"A" as shown and mark post. See the Framing Diagram on Page 5 and 6 for dimension “A”.
2. At the other end post of system (end post at float valve side of system) measure dimension "A"
minus one inch (2.5 cm) and mark post. This provides a 1"drop for proper water flow.
NOTE:If a Center-Mount In-Line Pump System is being installed, the BackPlate should be MOUNTED
LEVEL WITHOUT THE 1"DROP.
3. Stretch chalk line between marks of end posts and mark all posts of system.
4. For each post of system, align top edge of BackPlate with mark on post. Assemble BackPlate as
shown in diagram at left. Securely mount BackPlate on centers of 4x4" posts, not more than 5 ft.
(1.52 m) O. C. (on center).
5. Secure BackPlate to wooden framing with #10 x 1" Hex Head screws, or
secure BackPlate to steel framing with #12 x 1" Hex Head TEK screws.
2
1
3
4
Assembly of BackPlate
(1) Install top of BackPlate.
(2) Hook BackPlate Supports in bottom
holes of BackPlate. There are 3
Supports per BackPlate. One on
each end and one in the middle.
(3) Rotate BackPlate Support Brackets
up into position.
(4) Attach with screws.
BackPlate
Front View
“A
”
End View

Part No. 4801-5120 Rev. 1-2020 Mega-Cool System Page 17 of 48
Install Spray Line Support Brackets
1. Make sure BackPlate is at proper framing height.
2. Attach spray line support brackets with #8 x ½"TEK screws at the pre-drilled hole positions as
shown in diagram above.
Side View
Front View
“A”
#8 x ½”
TEK screws
BackPlate
Spray Line
Support
Bracket
Locate and attach top support
brackets at pre-drilled hole positions
of back plate.

Part No. 4801-5120 Rev. 1-2020 Mega-Cool System Page 18 of 48
Install Spray Line
1. Glue spray line sections together. Important! Glue joints with
spray line holes pointed in the same direction. Allow glue to
dry.
NOTE: If a Center-Mount In-Line Pump System is being
installed, the spray line must have a tee joint in the
middle. Refer to the Center-Mount System Diagram on
Page 25. Spray line tee installation will be simplified if
the spray line is cut after the In-Line Pump & supply
line is plumbed and the correct tee placement verified.
2. Insert spray line assembly into one end of top bracket. Slide
assembly until spray line spans entire length of top bracket.
3. Rotate spray line to place holes facing upward for Closed
Spray Cover option. For Open Spray Cover option, adjust
holes after installing Spray Cover. See Page 18. (NOTE:
Side View shown at left).
Rotate spray line
To point holes
upward
Closed
Cover
Option
Open
Cover
Option
Rotate spray line
To point holes
at angled corner of
Cover
Spray Line Installed With Holes Upward
1
2
3
Assemble Spray Line
Lay Spray Line into Top Support Brackets
Top Support
Bracket
TOP VIEW
TOP VIEW
Be sure to point holes in the same
direction when gluing Spray line.

Part No. 4801-5120 Rev. 1-2020 Mega-Cool System Page 19 of 48
Squeeze and twist splash
guard downward to snap
splash guard into place.
Front View
Install Splash Guards
1. Insert splash guard into support bracket as shown in diagram at
left.
2. Press back edge of splash guard against support bracket as
shown and rotate downward into back position.
3. Use both hands to grip splash guard near midpoint. Squeeze and
rotate splash guard downward until splash guard locks into front
position in the support bracket. Slide Cover to abut to previous
one. NOTE: Cover to be in Closed position before rotation into
Open position.
4. Use both hands to grip splash guard near midpoint. Squeeze and
rotate splash guard upward until splash guard locks into Open
Option position in the support bracket.
5. Add a splash guard splice to each joint where two splash guards
abut. Splash guard splice clips over joint. See diagram below.
Splash
Guard
Splice
Insert splash guard into
support bracket
Press back of splash guard
into bracket as shown.
Side View
Splash
guard
Squeeze and twist splash
guard upward to snap
splash guard into place.
Closed Cover
Option
Open Cover
Option

Part No. 4801-5120 Rev. 1-2020 Mega-Cool System Page 20 of 48
Install Cool Pads & Front Covers
1. Insert pads into drip rail at bottom.
2. Fit bolts through holes in back of support
brackets as shown above.
3. Fit top of cool pad underneath spray line support
bracket and against back plate. Repeat for all
pads.
4. Fit covers into the front slots of the spray line
support brackets. Insert top flange of cover into
slots of brackets as shown above.
5. Tighten wing nuts to secure cover in place.
6. Add cover splice to each joint where two covers
abut. See diagram above for cover splice.
Front
View
Mega-Cool
Cover Splice
2.55 in.
6.5 cm
Wing nut
Press-
Fit Bolt
Side View
Side View
Cove
r
Cool
Pad