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Validation Report

“HVFT and Annular Flow System Operation – Refrigeration Validation”

Concerning: Mysticool®Max utilizing X-STREAM® and A.R.M.E.D.® Technologies

from XDX Innovative Refrigeration

Application: Medium Temperature Food Service

Cooler

Report For:

Yum! Brand &

Yum! Restaurants International

Qualified Validation Date: August, 2009 Testing within

The People’s Republic of China

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Contents:

Report Outline: Page A

Briefing: Page 1

Project 1

Location 1

Intent 1

Summary 1

Validation Results: 2

Equipment: 6

Performance and Safety: 7

Conclusions: 7

Briefing: Overview parameters 8

Validation Protocol: 8

Contact Information: 12

Copyright Statement: 12

Mysticool®Max utilizing X-STREAM® and A.R.M.E.D.® technologies from XDX Innovative Refrigeration: The Technology

12

Photographs: 13

Patented Technology – Verification 14

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Briefing: Project: For Submission to: Yum! Brands & Yum! Restaurants International Location: Independent Testing Laboratory, Sanyo Cold Chain Division, Dalian, China Intent: For more than a decade, XDX Innovative Refrigeration has been helping companies like Yum!

Brands & Yum! Restaurants International meet environmental initiatives and save money by reducing energy usage by at least 15% in commercial air-conditioning and refrigeration systems. Field validations done in Yum! Brand’s restaurants have realized refrigeration savings of 18% or more, and 25% in HVAC. With a return on investment between 9 and 36 months, Mysticool®Max utilizing X-STREAM® and A.R.M.E.D.® technologies can be easily adapted into existing refrigeration and air-conditioning systems, or purchased already installed from equipment manufacturers. With over 17,000 installations globally, XDX Innovative Refrigeration has provided an economical, efficient solution for Yum! Brands & Yum! Restaurants International.

A laboratory test was conducted under very difficult conditions. A medium temperature cooler typically found in Yum! Brands QSR restaurants was tested. The protocol followed was extremely difficult and the instrumentation and record was very detailed. The testing closely followed a very strenuous adaptation of the ASHRAE International Testing Standard #72.

Review of two modes of refrigeration system operation was conducted. One as the baseline operation as originally designed. One was with the effort to identify the possibility of utilizing Mysticool®Max with the patented X-STREAM® and A.R.M.E.D.® technologies from XDX Innovative Refrigeration to achieve improved temperature, humidity, capacity increase, and energy savings. The test protocol initially ran the baseline operating mode. Upon confirmation of satisfactory operation, Mysticool®Max was then retrofitted and monitored, using temperature, humidity, and power monitors. The test had a portion with the door closed and a portion with automated door openings. The test conditions replicated harsh temperatures and very high relative humidity as would be experienced in the most extreme foodservice environments.

This report is intended to: Identify baseline system operation Identify Mysticool®Max operation Identify improved performance and capacity Identify operation during extreme conditions Demonstrate technology capabilities for Yum! Brands & Yum! Restaurants International and

identifying the impact upon foodservice markets globally

Summary: Mysticool®Max utilizing X-STREAM® and A.R.M.E.D.® technologies from XDX Innovative Refrigeration performed excellently and demonstrated energy savings.

The medium temperature cooler ran at lower energy with Mysticool®Max while capacity was increased.

• 24% to 25% faster pull-down to temperature during cycling of thermostat • Mysticool®Max achieved 35% to 40% lower kWh during pull down cycling of thermostat • While handling 9% more initial load, 24 Hour energy was reduced by 32%. • Mysticool®Max reduced defrost cycle time by 50%. • Mysticool®Max provided safer compressor temperatures. • Mysticool®Max reduced compressor amperage and compressor temperature; compressor

operated more safely.

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Validation Results:

Chart 1:

# Data Point or Test Description baselinewith

Mysticool®Ma difference Observation Conclusion

Initial Test Room Conditions - RH 78.88 80.78 2%Demonstrates Higher Load During Mysticool®Max Test

Initial Box Temp 32.84 33.92 1.08Demonstrates Higher Load During Mysticool®Max Test

Moisture Content - Grains of Moisture per pound of Dry Air 178 198 20.00

Demonstrates Higher Load During Mysticool®Max Test

Enthalpy - BTU per pound of Air (Cooling Load) 49.5 54.5 9.074%

Demonstrates Higher Load During Mysticool®Max Test

initial pull down time - Minutes 38.33 43 4.67longer initial pulldown with Mysticool®Max

initial pull down energy 1.11 1.16 4%higher initial pulldown power with Mysticool®Max

pull down time after continual 3 reach points 10.33 8.33 -24% Faster Pulldown with Mysticool®Max

pull down energy after continual 3 reach points 0.28 0.2 -40%

Reduced Pulldown Power with Mysticool®Max

pull down time after continual 6 reach points 10 8 -25% Faster Pulldown with Mysticool®Max

pull down energy after continual 6 reach points 0.27 0.2 -35%

Reduced Pulldown Power with Mysticool®Max

4 door open/close for 12 hrs, energy 13.63 10.65 -28%Reduced Energy with Mysticool®MaxUnder Usage

Defrosts 4 / day 2 / day -2Defrost Reduced as not needed with Mysticool®Max

Less Defrost Required

Maximum Temperature 18.05 6.68 -11.37Maximum Temperature is Reduced with Mysticool®Max

24 hours test running, energy 24.27 18.43 -32% Energy Is lower is Mysticool®Max

3 phase mean current / amperage 2.09 1.60 -31%Amperage is lower with Mysticool®Max

3 phase total output average 1012.35 764.77 -247.58 Power is lower with Mysticool®Max

Peak 3 phase total output 2421.41 1980.36 -441.05Peak power is lower with Mysticool®Max

Compressor Suction Pressure 0.37 0.38 0.01Higher Evaporator Pressure with Mysticool®Max

Compressor Body Temp 41.08 33.02 -8.06Cooler Compressor Body with Mysticool®Max

9 Condenser Temp 36.10 38.18 2.08 Higher for Mysticool®MaxIndicates Higher Load for

Mysticool®Max

Box Temp 3.88 3.76 -0.11 Similar Temperature for All Tests

Middle Box Temp 2.84 3.02 0.17 Similar Temperature for All Tests

Box (near door) Temp 3.50 3.63 0.13 Similar Temperature for All Tests

Cooler Laboratory Test Unit Comparison: Tested as baseline without Mysticool®Max utilizing X-STREAM® and A.R.M.E.D.®

technologies from XDX Innovative Refrigeration and then tested with Mysticool®Max

Test Conditions Similar indicating that under like conditions, Mysticool®Max saves more energy

Safer and More Effective System Operation - Improved C.O.P

1

7

8

10

5

6

Initial Latent Load is 9% Higher Explaining the slightly longer pulldown and 4% initial power usage

Pulldown Capacity with Mysticool®Max is faster and less energy is used with Mysticool®Max

Lower Energy Usage during nearly every aspect considered

3

2

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Chart 2

Cooler Box Temperature

Chart 2 shows that Mysticool®Max maintained similar temperatures throughout the test and lower peak temperatures during the test. Baseline had an average box temperature of +3.88°C. Chart 2 further demonstrates that Mysticool®Max had an average temperature of +3.76°C, keeping colder temperatures and peak temperatures throughout. Chart 3

During the three (3) day test, the compressor runtime was recorded. Chart 3 depicts the compressor runtime and compressor off time during the seventy-two hours (72) testing period. During the three (3) day test period, baseline ran for a total of 58.7 hours with an off time of 41.3 hours while Mysticool®Max only ran for a total of 55.69 hours with an off time of 44.31 hours, which demonstrates its superior performance as Mysticool®Max reached colder temperatures and saved energy.

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Chart 4

Chart 4 Shows superior rate of pull down to temperature using the improved evaporator heat transfer as the Baseline operation required two (2) more minutes to reach set point temperature as seen on the gradual downward slope and a shorter off cycle at seen in the brief upward slope; while Mysticool®Max operation reached the set point temperature of fewer minutes; while experiencing longer off cycles. This can also be seen in the shorter rises in amperage as Mysticool®Max was colder faster by 28.57% or more.

Chart 5

Chart 5 identifies that while the baseline operation required higher amperage of 2.08 amps and it also used more energy, as it sees longer run times at higher amperage. Mysticool®Max amperage at 1.59 amps demonstrated 24.6% lower amperage draw.

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Compressor Operation; Coefficient of Performance (C.O.P.): The goal of any refrigeration unit is to operate at a higher pressure and a lower temperature. This reduces compressor effort. If the compressor inlet temperature is higher, there is less compression required or stated differently, a lower compressor compression ratio required. The same amount of compressor work in a shorter time period as noted in Chart 5 in indicative of increased Compressor Coefficient of Performance (C.O.P.) for Mysticool®Max.

Chart 6

The reduced compressor amperage and reduced low side or compressor inlet temperature, which increases the Compressor Coefficient of Performance (C.O.P.) for Mysticool®Max is a contributing factor in the reduction in energy consumption or kWh. The 72 Hour baseline energy consumption totaled 24.27 kWh while the faster operation with Mysticool®Max was much lower at 18.4 kWh. Cooling Degree Minutes (C.D.M.) is defined as the number of minutes and incremental degrees in which a refrigeration system operates below a determined temperature. In this case as a freezer, 18°C (65°F) is the determined temperature. For example, if a system operated at 17°C for one (1) minute, that would be one (1) C.D.M. If it operated for five minutes at 16°C, that would be ten (10) C.D.M. C.D.M. is a method by which the cooling capacity or work of a refrigeration system can be quantified.

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Chart 7

Chart 7 identifies the Cooling Degree Minutes (C.D.M.) of Baseline as compared to the Cooling Degree Minutes (C.D.M.) with Mysticool®Max operation. The Baseline achieved only 82,326 Cooling Degree Minutes (C.D.M.) while Mysticool®Max operation attained a slightly higher level of 82,667 Cooling Degree Minutes (C.D.M.) Finally, in examining the Cooling Degree Minutes (C.D.M.) and its relationship to the kWh consumed to achieve the capacity, it can clearly identify system efficiency. The Cooling Degree Minutes (C.D.M.) divided by the kWh provides a Performance Efficiency Ratio (P.E.R.). The Baseline Cooling Degree Minutes (C.D.M.) totaled 82,326 and the kWh was measured at 24.27 for a Performance Efficiency Rating of only 3,392.09. The Mysticool®Max operation used only 18.4 kWh while achieving 82,667 Cooling Degree Minutes (C.D.M.) resulting in a much higher Performance Efficiency Ratio of 4,492.77; affirming more efficient operation with Mysticool®Max. Equipment: Sanyo Refrigeration System Condensing Unit Model Compressor C-R173L8B Evaporator Unit Model Evaporator PCU-CS200ME Refrigerant R-22

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Performance and Safety: Efforts were taken to monitor actual operational conditions both during baseline and Mysticool®Max operation. The baseline system was exposed to the same conditions as Mysticool®Max as both experienced similar ambient and load changes. Normal operating conditions were used to demonstrate reliability, dependability, and performance during conditions that might be faced by the foodservice industry in China. Mysticool®Max performed within satisfactory compressor FLA and superheat tolerances. Determination is made that Mysticool®Max utilizing X-STREAM® and A.R.M.E.D.® technologies from XDX Innovative Refrigeration will operate safely and satisfactorily under all load conditions. XDX Innovative Refrigeration products meet all requirements and are registered and listed by Underwriters Laboratories.

Conclusions: The following benefits were experienced and can be related to each system retrofitted:

Energy Reduction:

o Improvements to energy, temperature and operating time were documented o Mysticool®Max reduced defrost cycle time and energy by 50% o While handling higher load, 72-hour energy was reduced by 24.2% o 2 minute faster pull-down each cycle was achieved while using 24.2% lower kWh

Capacity Increase:

o Increased capacity o Faster Pull down to temperature set point each operating cycle 2 minutes or more and 28.57% o Compressor runtime was reduced by three (3) hours in 72 hours; runtime was reduced by 5.2% o Mysticool®Max achieved more Cooling Degree Minutes (C.D.M.) than baseline operation o Mysticool®Max achieved colder peak temperatures

Equipment Life:

o Mysticool®Max provided safer compressor temperatures o Improved oil return was experienced o Reduced compressor run time

Product Conditions that impact Product Quality

o Mysticool®Max achieved colder peak temperatures o More consistent and safer product area temperatures were achieved o Product area temperatures were achieved faster by 28.57% o Mysticool®Max reduced defrost cycle time, by 50%; improving product conditions.

Demonstration that this technology’s capabilities will have a substantially beneficial impact upon

systems in Yum! Brands and Yum! Restaurants International markets.

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Overview parameters:

XDX Innovative Refrigeration entered into this evaluation in cooperation with a third party laboratory at Sanyo in Dalian, China. At the time of this testing, XDX Innovative Refrigeration had never sold product to Sanyo, thereby making them independent. This is a very difficult test protocol. At this point, XDX Innovative Refrigeration knows of no other laboratory in China able to run these test conditions and monitor all of these data points.

Validation Protocol: 1.

1.1 Walk-in Configurations and settings: 1.1.0. Room inside a room; outer room is the ambient; condensing unit should be located in the outer

room. 1.1.1. Approximate Interior dimensions: 2.2M Width x 3.5M Length x 2M Height; panel

thickness=100mm 1.1.2. Ambient: temperature=35°C ±0.5°C, RH=85% ±0.5% 1.1.3. Additional Load: electrical heater, keep the system at 75% running rate with door closed all the

time. Wattage is determined in the baseline and remains unchanged post retrofit. Monitor energy consumption of the electric heater load.

1.1.4. Walk-in Temperature setting: Cooler= +1 to +3° C, Freezer= -15 to -18° C 1.1.5. Defrost

1.1.5.1. Defrost Setting (1): 4 times/day, 20 minutes/time 1.1.5.2. Defrost Setting (2): 2 times/day, 20 minutes/time

1.1.6. Mechanical Door Open/Close: 6 times/hour, 10 seconds/time, 12 hours; open extent=70° 1.1.7. Test Period: pull-down=1 day, followed by 3 days of test recording (1 + 3 days running) 1.1.8. After running with the Defrost Setting (1), the box is warmed to ambient and test is rerun for

another 1 + 3 days with new defrost setting. 1.1.9. The walk-in is retrofitted with Mysticool®Max and repeat step 1.1.8

1.2 Test Recording: 1.2.1. Evaporator inlet: put temperature sensor on the inlet of each circuit, record the temperature (be

careful to the sensor position on the side of evaporator tube, not on the distributor and not on the ‘U’ bend)

1.2.2. Evaporator outlet: put temperature sensor on the main outlet of each circuit, record the temperature and the pressure

1.2.3. Sample compressor inlet temperature, and pressure 1.2.4. Sample compressor outlet temperature, and pressure (temperature should be very close proximity

to compressor) 1.2.5. System total Amperage, and Voltage (Power factor, kWh, and kW at readings consisting of

multiple samples combined in 15 minute accumulated averages) 1.2.6. Interior Temperature of Walk-ins: one (1) at the sensor of the thermostat, one (1) at the wall

facing to the evaporator 1.2.7. Recording interval: a minimum of ten (10) second samples

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A = Auxiliary Ambient Conditioning

Equipment

1 = Box Temperature Sensor

B = Test Box 2 = Return Air Temperature Sensor C = Compressor & Refrigerating

Condensing Unit 3 = Supply Discharge Air Temperature Sensor

D = Door Opening Mechanical Device 4 = Box Mid Point Temperature Sensor E = Evaporator 5 = Box Temperature Sensor Near Door

6 = Ambient Temperature and Relative Humidity Sensor (Three Locations Used)

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Test Protocol – Walk-in Refrigeration System – Laboratory

2. 2.1. All equipment for validation shall be approved through the XDX Innovative Refrigeration research and

development process 2.2. The Supplier or their authorized agent shall be prepared to give assistance and supervise installation of

the equipment both at the laboratory validation. Supplier or their authorized agent shall supply support on site if necessary.

2.3. XDX Innovative Refrigeration reserves the right to perform ongoing inspections for compliance either in the factory or in the field.

2.4. Any changes in design or components must have prior approval of all parties. 2.5. EQUIPMENT LAB TEST

2.5.1. The walk-in refrigerator or freezer shall be tested to ASHRAE standard 117. Exceptions are as follows:

2.5.2. Ambient Conditions 2.5.2.1. Dry Bulb

2.5.2.1.1. The test room, dry bulb temperature shall be 95°F (35°C) 2.5.2.2. Wet Bulb

2.5.2.2.1. The test room relative humidity shall be 85% 2.5.2.3. Air Currents

2.5.2.3.1. No external air draft shall be allowed to blow directly into the refrigerated zone.

2.5.2.4. Lighting 2.5.2.4.1. Walk-in box lighting during this test shall be energized throughout testing

2.5.2.5. Condenser inlet air temperature 2.5.2.5.1. The condenser inlet air temperature shall be at or above 115°F (46.1°C)

2.5.3. Simulator Location on Shelves 2.5.3.1. If product simulators are utilized, for each row of shelving, there shall be four (4)

product simulators. They shall be located at the left end top rear, right end top rear, left end bottom front, and right end bottom front.

2.5.3.2. Air temperature and RH sensors shall be used to monitor air conditions within the box at left end top rear, right end top rear, left end bottom front, and right end bottom front.

2.5.4. Refrigerant or Coolant 2.5.4.1. General

2.5.4.1.1. Refrigerant shall be in accordance with equipment specifications. Secondary cooling systems shall not apply.

2.5.4.2. Liquid Refrigerant Temperature 2.5.4.2.1. The entering liquid refrigerant temperature for refrigeration units shall be

designed to maintain a minimum of 8°F (4.4°C) of refrigerant sub-cooling. 2.5.4.3. Liquid Refrigerant Pressure

2.5.4.3.1. The entering liquid refrigerant for remote refrigerators shall have a saturated liquid pressure corresponding to the condenser inlet and sub-cooling parameters identified above.

2.5.4.4. Refrigerant/Coolant Quantity Gas Measuring Instrument and Calibration 2.5.4.4.1. Refrigerant/coolant quantity gas measuring instrument and calibration

shall not be required. 2.5.5. Test Data

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2.5.6. At the conclusion of the test, the following information as a minimum, is to be reported in both

tabular and graphical format for both walk-in coolers and freezers: • Single phase voltage • Single phase amperage • Single phase power • Single phase power factor • Single phase frequency • Single phase electrical energy • A phase voltage • A phase power • A power factor • B phase voltage • B phase amperage • B phase power • B power factor • C phase voltage • C phase amperage • C phase power • C power factor • C phase voltage • C phase amperage • C phase power • C power factor • 3 phase average voltage • 3 phase mean current • 3 phase total output • 3 phase average power factor • 3 phase frequency • 3 phase consumption

• Compressor suction pressure • Compressor discharge pressure • Ambient Temperature 1 • Ambient Temperature 2 • Ambient Temperature 3 • Ambient Humidity 1 • Ambient Humidity 2 • Ambient Humidity 3 • Evaporator temperature out • Return air temperature • TXV outlet • Middle box temperature • Box temperature at door • Mid-point evaporator coil

temperature • Supply air temperature • Discharge temperature • Box temperature • Suction temperature • Condenser inlet temperature • Compressor body temperature • Mid-point condenser coil

temperature • Condenser outlet temperature • Compressor head temperature • TXV inlet temperature

2.5.6.1. After the ambient conditions have then been established in the control test room, the walk-in unit is to remain in the off state for a period of 24 hours. The walk-in shall then be turned on and pull down and full three days of operation shall be monitored. 2.5.6.1.1. Walk-in medium temperature cooler: 2.78°C (37°F) set point 2.5.6.1.2. Walk-in medium-low temperature cooler: 1.67°C (35°F) set point 2.5.6.1.3. Walk-in low temperature freezer: -20°C ( -4°F) set point

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Contact Information:

Licensed Exclusive Distributors of Mysticool®Max utilizing X-STREAM® and A.R.M.E.D.® technologies from XDX Innovative Refrigeration:

Beijing Bingshan Refrigeration & Air-Conditioning Complete Equipment Co., Ltd East Side 3F, M8 Building, Election Science and Technologe Garden No.1 Jiuxianqiao East Street, Chaoyang District, Beijing Tel: +86(10)51657766 Fax: +86(10)64333560 XDX Global, Inc XDX Innovative Refrigeration, LLC 3176 N. Kennicott Arlington Heights, IL 60004 USA 847.398.0250 http://www.xdxusa.com mailto:info@xdxusa.com Copyrighted Information This communication contains copyright protected information.

Distribution, or copying of this communication is permitted in its entirety with the consent of XDX Innovative Refrigeration or its Licensed Distributor. Use of information or portions of the document is strictly prohibited without written consent of XDX Innovative Refrigeration, LLC. ©1999-2010 XDX Innovative Refrigeration, LLC 847.398.0250 Mysticool®Max utilizing X-STREAM® and A.R.M.E.D.® technologies from XDX Innovative Refrigeration: The Technology

By maximizing the rate of heat transferred from warm air inside the box into the refrigerant inside the evaporator, Mysticool®Max provides a much faster temperature pull down. This improved heat transfer rate reduces system run-time resulting in a reduction of energy consumption. Ensuring a dynamic liquid refrigerant is present throughout the evaporator coil while maintaining 100% vapor at the compressor prevents cold or warm sections of the evaporator coil. Temperature uniformity across the coil results in an even frost pattern, reducing the required amount of defrost cycles dramatically. Significantly cooler vapor exiting the evaporator coil and entering into the compressor will additionally reduce energy consumption while maximizing product quality. The overall benefits of better system operation, energy savings, reduced defrost, product quality improvements and better system protection provide a substantial return on investment for the systems operational improvement effort.

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Photographic Record

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Patented Technology - Verification International Trademarks XDX Innovative Refrigeration USPTO Reference No. A0016521 (Australia, China, United Kingdom, European Union) US Registered Trademarks XTC S/N 76374923 A.R.M.E.D. S/N 76417162 MYSTICOOL S/N 75684535 RAPI-DEFROST S/N 75684534 XSTREAM S/N 75684537 XDX S/N 75622553 Chinese Patents and Applications - Pending 200830116054.x Expansion Valve Design 200980000074.2 Surged vapor compression heat transfer system with reduced defrost requirements 61/348,847 Surged Heat Pump Systems – Chinese Application Pending PCT Applications PCT/US2009/044112 Surged vapor compression heat transfer system with reduced defrost requirements PCT/US2003/040509 Vapor compression systems, expansion devices, flow-regulating members, and vehicles, and methods for

using vapor compression systems PCT/US2001/028950 Expansion device for vapor compression system PCT/US2000/014648 Vapor compression system and method for controlling conditions in ambient surroundings PCT/US2000/000663 Vapor compression system and method PCT/US2000/000622 Vapor compression system and method US Patents- Pending 10/948,106 Expansion valves, expansion device assemblies, vapor compression systems, vehicles, and methods for

using vapor compression systems 61/348,847 Surged Heat Pump Systems - Application US Patents 7,225,627 Vapor compression system and method for controlling conditions in ambient surroundings 6,951,117 Vapor compression system and method for controlling conditions in ambient surroundings 6,915,648 Vapor compression systems, expansion devices, flow-regulating members, and vehicles, and methods for

using vapor compression systems 6,857,281 Expansion device for vapor compression system 6,751,970 Vapor compression system and method 6,644,052 Vapor compression system and method 6,581,398 Vapor compression system and method 6,401,471 Expansion device for vapor compression system 6,401,470 Expansion device for vapor compression system 6,397,629 Vapor compression system and method 6,393,851 Vapor compression system 6,389,825 Evaporator coil with multiple orifices 6,314,747 Vapor compression system and method 6,185,958 Vapor compression system and method