BankofAtest

PermaFrost Test: Rooftop AC Unit - June 2003

Evaluation of Effects of PermaFrost Treatment for Rooftop AC Units Energy
Consumption at Bank of America in Austin, Texas
Prepared by Tony Bloom, PE - June 2003

NOTE: The following is the executive summary of a 3-page report available of BOA Austin Roof Top Unit
Test: June 2003. Tables and graphs referred to in this summary are available in this PDF file

INTRODUCTION
This test monitored power usage in order to determine the kilowatt-hour consumption of RTU-1
(Roof Top Unit) and RTU-2 air conditioning systems at the Bank of America branch at Loop 360
and US 183 in Austin Texas.

METHODOLOGY
Energy consumption of both units was monitored simultaneously for one week before and one week after treatment with
Permafrost. The first and last days of monitoring were partial days and/or included the period while Permafrost was being
installed. Therefore, these days were not included in the report.

OBSERVATIONS:

Total energy consumption before permafrost: 654 KWH

Total energy consumption after permafrost: 524 KWH

The net reduction in energy consumption was 20% for the period.

The weather conditions during the monitoring period was variable, however, the before and after weather conditions were
similar.

RTU- 1 & RTU- 2 Before and After Permafrost
Total kWH Consumption Per Week

NOTE: The above is a summary of a 3-page report available of BOA Austin Roof Top Unit Test: June 2003.
Tables and appendices referred to in this summary are available in this PDF file