Hired-Hand Mega-Cool: Square Reservoir - Manual (Page 2)

Part No. 4801-5397 Rev. 5-08 Mega-Cool System – Square Reservoir Page 2
Table of Contents
Purpose of Evaporative Cooling ................................................................... 2
Theory........................................................................................................... 2
Description of System................................................................................... 2
In-Line System Configuration ...................................................................... 3
Installation Cross-Section (Systems 10' to 120')........................................... 4
Framing......................................................................................................... 5
Flat Bottom Reservoir Support Brackets ...................................................... 6
Install PVC Flat Bottom Reservoir ............................................................... 7
Install Spray Line Support Brackets ............................................................. 8
Install Spray Line.......................................................................................... 9
Install Splash Guards .................................................................................. 10
Install Cool Pads and Front Covers ............................................................ 11
Assemble End Caps .................................................................................... 12
Install System End Caps ............................................................................. 13
Assemble and Install Float Valve ............................................................... 14
Install In-Line Pump and Assemble Supply Line ....................................... 15
Mega-Cool 10'-120' Straight Span, Center-Mount In-Line Pump System.. 16
Operation .................................................................................................... 18
Hired-Hand Mega-Cool Checklist .............................................................. 19
Cleaning Mega-Cool System ...................................................................... 19
Mega-Cool Replacement Parts ................................................................... 21
Mega-Cool Kits .......................................................................................... 22
TOOLS REQUIRED
PVC piping glue PVC piping cutter PVC Pipe Cleaner Hammer
Circular Saw Ladder 8’ Step Tape Measure Ratchet Set
Level Chalk line Wrench Drill w ¼” Bit
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 Hired-Hand.
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
a six inch (15.24 cm) wide rectangular plastic tank.
Fill line The fill line supplies make up water to the system.
In-Line Pump kit The 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.