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GEORGETOWN HOSPITAL

June 9, 1989

KENNETH W. POTEETE                                                                                                                      2000 SCENIC DRIVE
   PRESIDENT & CEO                                                                                                                   GEORGETOWN. TEXAS 78626
                                                                                                                                                        (512) 863-6S31 / 255-7883

TO WHOM IT MAY CONCERN:

Recently, this Hospital was approached by representatives of Young and Pratt Service, Inc. with information and a demonstration of a new product called "Frigi-Tech". The demonstration included bearing wear and load performance of an electric motor under test conditions. Both results were very dramatic.

"Frigi-Tech" is a liquid substance injected into the oil/refrigerant circuit of a compressor. Size is not a factor.

I have treated 2 each 80 ton Trane water chiller units with "Frigi-Tech" with the following results:

            a. Before "Frigi-Tech" current draw at 460 volts:

                Phase-I          Phase 11          Phase III
                140 Amps     145 Amps       135 Amps

            b. After "Frigi-Tech" current draw at 460 volts:

                 Phase-I        Phase H          Phase -111
                124 Amps     128 Amps     122 Amps

All tests were conducted under nearly identical circumstances; i.e., time of day, outside temperature, relative humidity, water temperatures in and out at 100% loaded.

This results in almost an 11% reduction in operating cost which is only a portion of the overall savings.

At this point, approximately three months of operation, I am very pleased with this product.

Sincerely,

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LOUIS BROOKS,
Director of Engineering

LB:bb

Member of Georgetown Health Care System