Greenway Design Group develops and installs automatic pre-cool solutions for HVAC systems to reduce energy consumption and costs. Their Cool-n-Save systems inject micro mist into incoming air to lower temperatures by 30 degrees, improving HVAC efficiency. Studies show the systems can reduce energy use by up to 30% and provide quick returns on investment within a few months. Commercial systems are customized installations managed by professionals, while residential kits are do-it-yourself with all needed parts.

1. HVAC Pre-Cool
Pre-
Solutions
S l ti
Copyright © by Greenway Design Group, Inc.

3. Introduction
Greenway Design Group Inc.
Group, Inc
An innovator of commercial and
residential solutions f HVAC
id i l l i for
systems under the Cool-n-Save®
brand since 2005 The company’s
2005. company s
principal activity is developing,
building and maintaining automatic
g g
pre-cool solutions for residential and
commercial HVAC systems.

4. Introduction
A leading “green” innovator
innovator…
Our solutions have been proven to
reduce energy consumption b as
d i by
much as 30%. They also reduce
maintenance cost from reduced
wear and tear on HVAC equipment.
Thousands of property owners now
p p y
benefit from Cool-n-Save.

5. Introduction
HVAC P C l S l ti
Pre-Cool Solutions
Commercial Residential

7. The Innovation
Residential Kit
Everything needed to
install is in the residential
kit – no tools, no
electricity, and 5 easy
steps.
steps

8. The Innovation
Commercial Systems
y
Our commercial systems
are far more complex
and robust. Each site
is designed, installed
and maintained b
d i i d by
professionals. Each
installation is unique
to the location
and equipment.
q p

9. The Innovation
How it Works
Commercial or residential,
the basic concept is the
same. Micro mist is injected
into the air, evaporates
almost instantly and cools
the air
around the
AC unit.

10. The Innovation
How it Works
Cool-n-Save® forces air temperature down by about
30 degrees. If outside air is 98ºF, inside the shield it
98 F,
is only 68ºF. That means the AC unit gets a head
start as it cools your building.
RESULT: Fewer and shorter cycle times, decreased
head pressure, and significantly improved energy
efficiency for the same cooling power.

11. The Innovation
Tulane University Study
y y
“By using the Cool-n-Save® system,
even in a climate that endures high
humidity, the heat transfer from the
refrigerant to the air is substantially
increased. Thi effect i li th t
i d This ff t implies that
cooler air will be able to circulate
and decrease the time the
condenser unit runs, thus reducing
electricity cost to the user."

12. The Innovation
Additional Studies
“The application of water mist pre-cooling
could increase the coefficient of
ff f
performance… by up to 30%.”
Hong Kong Polytechnic University, 2009
“A system test [of Cool-n-Save] concluded
both an instant and a sustainable 24.6%
reduction in energy consumption ”
consumption.
Plan B Logistics, 2007

13. The Innovation
Instant Savings, Fast ROI
g ,
Savings begin immediately.
Reduce the cost of cooling
by as much as 30%.
The return on investment is
often measured in
MONTHS, not years.

15. Field Results
RESULT: International Rubber
Dominguez Hills, CA
A 40,000 square foot light industrial building Monthly
40 000 building.
electricity bills averaged $22,608 prior to the installation
of Cool-n-Save. After the installation of Cool-n-Save, the
average monthly electricity cost d
hl l i i dropped to $18 659 – a
d $18,659
savings of $3,949 per month and a 17% reduction in their
overall electricity costs. The cost savings provided a
payback period of less than 2 months.

16. Field Results
RESULT: ARCO AM/PM Gas Station
Moreno Valley, CA
A 2,400 square foot convenience store serviced by two
2 400
10-ton HVAC condensers plus two smaller condensers for
a walk-in cooler. Cool-n-Save was installed on all
condensers. F
d From JJune through S
h h September 2009 this
b 2009, hi
location experienced savings of $1,620 in electricity costs
from the prior summer. The monthly average savings
represents a 7.2% reduction in the total cost of electricity.
The expected payback is less than one year.

17. Field Results
RESULT: City Club Store
Lincoln Monterrey N.L., Mexico
A large warehouse/retail location in a metropolitan area
area.
Prior to installation, one HVAC unit consumed 8,802 kWh.
After Cool-n-Save was activated, consumption dropped
to 6 523 kWh – a more than 25% savings. B d on the
6,523 h i Based h
local rate of $0.15 per kWh, the client may realize a NET
savings of $1,435 per month for one unit. There are more
than 30 condensers at this location – the estimated
annual savings is more than $500,000.

18. Field Results
Average Results
Reduction of AMP draw: 21%
Reduction of temperature at condenser: 28°
28 F
Reduction of exhaust air temperature: 12°F
Reduction of compressor head pressure: 25%

20. System Components
Non-Invasive Installation
Installation does not require tear-
downs or disassembly of the
rooftop units. Installation has
almost no impact on building
operations (system shut down is
not required). Depending upon
local building codes, permits are
usually not required
required.

21. System Components
Cool Pump™
p
Commercial systems are equipped
with our proprietary control pump.
Cool Pump ensures a steady flow
of treated water from the building
water supply to the misting
nozzles. It senses condenser
activation through a low voltage
relay switch connected to the
HVAC thermostat.

22. System Components
Cool Release™
A patented and environmentally
friendly water treatment system
that i hibi mineral ( l i )
h inhibits i l (calcium).
Refilling the water treatment
canisters for our commercial
system is a simple process.
Residential customers use self-
self
contained 3-month and our
exclusive 6-month cartridges.

23. System Components
Cool Array™
y
The pre-cool shield is deployed
by an array of micro-nozzles
designed to your specific HVAC
requirements. The layout and
pattern of nozzles is determined
by the type of coil system and
the area to be covered.

24. System Components
Microguard™
g
Added for greater efficiency and
protection; Microguard is a
siloxane-based
siloxane based maintenance
treatment that inhibits mold
growth and stops all corrosion on
coils, fins, copper tubes, fans and
cabinets. Microguard also
increases laminar flow of air over
the fins. Microguard has an 11-
year performance record.

25. Cool-n-Save, Cool Release, Cool Array, Cool Pump are ™
and ® registered marks by Greenway Design Group, Inc.
Microguard is a ™ registered mark by Adsil, Inc.