### Intertek Testing Services NA, Inc. 1717 Arlingate Lane
Columbus, OH 43228 (614)279-8090 phone (614)279-4642 fax

Project No. G100032212 March 31, 2010

REPORT NO. 100032212COL-001

PERFORMANCE TESTING

OF

HCR-188C REFRIGERANT VERSUS R-134a REFRIGERANT

TO

APPLICABLE PORTIONS OF ARI 540

AND

CUSTOM TEST PROTOCOL

RENDERED TO

A. S. TRUST & HOLDINGS INC.

KANEOHE, HI

GENERAL : This Report gives the results of the tests and evaluation of HCR-188C, a hydrocarbon refrigerant b lend, designed for replacing R-134a in refrigeration and air-conditioning systems. The HCR-188C refrigerant was tested through side-by-side comparison with R-134a in iden tical refrigeration systems and by applicable requi rements of the Standard for Positive Displacement Refrigerant Comp ressors and Compressor Units, ARI 540, dated 01/01/ 1999. This investigation was authorized by signed quotation nu mber 500207680, dated February 2, 2010. The invest igation was started on February 18, 2010 and completed on March 31, 2010. The applicant provided the sample HCR-1 88C for testing

. Joe Sexton of Haier provided identical refrigerat ion compressors for testing. Testing was conducted at the Columbus, OH Intertek facility.

Positive Displacement Refrigerant Compressors and C ompressor Units, ARI 540, dated 01/01/1999

Applicant: A. S. Trust & Holdings Inc Manufacturer: A. S. Trust & Holdings Inc

44-129 Mikiola Drive 44-129 Mikiola Drive
KANEOHE, HI 96744 KANEOHE, HI 96744

USA USA Contact: Mr. Richard Maruya Contact: Mr. Richard M aruya Phone: (808) 235-1890 Phone: (808) 235-1890 Fax: (808) 235-0116 Fax: (808) 235-0116 Email: richardastrust@yahoo.com Email: richardastr ust@yahoo.com

An independent organization testing for safety, per formance, and certification.

This report is for the exclusive use of Intertek's Client and is provided pursuant to the agreement be tween Intertek and its Client. Intertek's responsib ility and liability are limited to the terms and conditions of the agreement. Inter tek assumes no l

iability to any party, other than to the Client in accordance with the agreement, for any loss, expens e or damage occasioned by the use of this report. Only t he Client is authorized to copy or distribute this report and then only in its entirety. Any use o f the Intertek name or one of its

marks for the sale or advertisement of the tested m aterial, product or service must first be approved in writing by Intertek. The observations and test r esults in this report are relevant only to the sample tested. This report by itself does not imply that the material, product, o r service is or has ever been under an Intertek cer tification program.Intertek Testing Services NA, Inc.

Report No. 100032212COL-001 Page 2 of 8 March 31, 2 010 A. S. Trust & Holdings Inc

PRODUCT DESCRIPTION

PRODUCT

The product is a proprietary hydrocarbon refrigeran t blend, designated HCR-188C, designed to be suitab le as a replacement for R-134a in refrigeration and air-con ditioning systems.

PRODUCT DESCRIPTION

The product is flammable. The product is not an oz one depleting substance. The product has low GWP ( Global Warming Potential). The product operates at approx imately one quarter of the charge amount as compare d to R134a.

ELECTRICAL RATINGS

None

OTHER RATINGS

Saturation pressure approximately 110 psig at 75°FIntertek Testing Services NA, Inc.

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TEST PROCEDURE

Two identical refrigeration systems were constructe d and one was charged with 372.5 grams of R-134a an d the other was charged with 131.0 grams of HCR-188C. The syst ems were operated simultaneously from the same powe r supply from February 18, 2010 thru March 31, 2010. Flow measurements of each system’s capillary tube were recorded at the beginning and end of the test. Dai ly measurements of the operating pressures, tempera tures and power consumption were recorded. Oil samples from each compressor were analyzed at the conclusion of the test for moisture, acid, viscosity and wear metals.

RESULTS #1

Capillary Tube Clogging Characteristics

Flow Reading (lpm at 10” Hg positive pressure)
February 12, 2010 March 31, 2010

@ 0 Hours @ 1000 Hours Flow Loss Percent
R-134a Cap Tube 4.65 4.58 0.015%
HCR-188C Cap Tube 4.68 4.65 0.006%

Both capillary tubes exhibited minimal flow loss. Neither loss translated into any detrimental effect on the performance of the respective system compressor.Intertek Testing Services NA, Inc.

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RESULTS #2Intertek Testing Services NA, Inc.

Report No. 100032212COL-001 Page 5 of 8 March 31, 2 010 A. S. Trust & Holdings Inc

RESULTS #2 ContinuedIntertek Testing Services NA, Inc.

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RESULTS #2 Continued

Initially, both systems were adjusted to achieve th e same amount of cooling as measured at the compres sor suction port. This was accomplished by a combination of th e percent blockage across each system’s condensing fan and also by varying the charge amount in each system, ultima tely adding a HCR-188C charge that was approximatel y 35% of the R-134a charge. At this condition, the HCR-188C system operated at approximately 46 psig higher di scharge pressure than the R-134a system and consumed approx imately 0.15 Amps more power. Operating conditions were then maintained with no outside adjustments or chan ges. As both compressors broke in over the course of the test, they both exhibited increased cooling capacity and efficiency. At the end of the test, conditions had shifted such that the HCR-188C system operated at only 19 psig higher discharge pressure than the R-134a system and cons umed approximately equal power, but the amount of coolin g measured at the compressor suction port was warme r by approximately 3.75°F.

RESULTS #3

At the conclusion of the test, oil samples from eac h compressor were analyzed for moisture, acid, visc osity and wear metals. The lab reports for those analyses are inc luded as an attachment to this report.Intertek Testing Services NA, Inc.

Report No. 100032212COL-001 Page 7 of 8 March 31, 2 010 A. S. Trust & Holdings Inc

PHOTOS

Test Start

R-134a System Start HCR-188C System Start

R-134a System End HCR-188C System End

Test EndIntertek Testing Services NA, Inc.

Report No. 100032212COL-001 Page 8 of 8 March 31, 2 010 A. S. Trust & Holdings Inc

TEST EQUIPMENT

Climate Controlled Lab 2 Identical Complete Refrigeration System Test Fixt ures Comprised Sequentially Of:

o Embraco Compressor, model EGX70HLC pre-charged with 280ml ESTER / ISO7 oil

o 3/16” OD Copper Tube, 70” long, coiled

o 1⁄4” OD Copper Tube, 13” long, coiled

o 1⁄4” Copper Tee, with access port to high side of ma nifold gauge

o 1⁄4” OD Copper Tube, 13” long, coiled

o Finned Copper Tube Condenser Coil, 3⁄8 ” OD tubes, 3 rows, 4-1⁄2”W x 8”H x 2-1⁄2”D

o Cooled by Ball 5-1⁄2” Ducted Fan, model XF1551ABHL, 0.32A, inlet grill 58% blocked

o 1⁄4” Brass Swivel Union

o Emerson EK-032 Filter Drier

o 1⁄4” Brass Swivel Union

o Parker Moisture Indicating Sight Glass

o 0.064” ID Capillary Tube, 96” long, coiled, with 2 -1⁄2” long 1⁄4” OD copper tube flared connections

o 1⁄4” Brass Male Flare Coupler

o 1⁄4” OD Copper Tube (Evaporator), 96” long, coiled

o 1⁄4” Copper Tee, with access port to low side of man ifold gauge

o 1⁄4” OD Copper Tube, 7” long

o Compressor Identical Brand New CPS Products Reference Only Man ifold Set Pressure Gauges
Thermocouples Placed At:

o Room Ambient

o Compressor Discharge Port

o 1⁄4” Brass Swivel Union Between Filter Drier and Sig ht Glass

o Outlet of 0.064” ID Capillary Tube

o Compressor Suction Port
Vacuum Pump Virgin R-134a and Virgin HCR-188C

CALIBRATED EQUIPMENT

Item Equipment Type Equipment # Cal. Due Date

1 Fluke 335 Volt/Amp Meter E206 June 11, 2010

2 Omega Digital Thermometer E132 Mar. 16, 2010

3 Omega Digital Thermometer E237 Mar. 22, 2011

4 Top Loading Balance CE1031 May 12, 2010

5 CECOMP 0 – 500 psi Digital Pressure Gauge E184 Ju ne 9, 2010

6 Meriam 40” Mercury Manometer CE1118 For Referenc e Only

7 Cole Parmer 0.5 – 5.0 lpm Acrylic Flow Meter CE11 21 For Reference Only

8 Reference Standard Cap Tube LL1 For Reference Onl y

Report prepared by: Report approved by:

Brandon Button Ramzi Amawi

Senior Associate Engineer Operations/Engineering M anager