Hart Hammer What's New

What’s New?

April 15, 2009

Emerging Technologies: Air Purification to Reduce Outside Air
(A Camfil Farr Concept Since 1989)

ASHRAE has published an article in the April issue of the Journal. Turn to page 68 or click on the link above to read about this revolutionary new concept (sort of).

November 4, 2008 (Updated November 6, 2008)

ASHRAE 52.2-2007

ASHRAE 52.2 now incorporates the requirements of arrestance and dust-holding capacity from Standard 52.1. It also adds a new informative appendix that provides an optional method of conditioning a filter using fine KCI particles to demonstrate efficiency loss that might be realized in field applications).

Update - A new test report on the industry standard Camfil-Farr 30/30 pleated filter is now available.

This 30/30 test report portrays consistent mechanical particle capture efficiency throughout the 12 particle size ranges of the test. In fact, at the geometric mean of 3.46-micron the 30/30 reaches an efficiency of 70.5% after the initial conditioning step.

The 2008 revision to ASHRAE 52.2 was published this week. It includes a new conditioning method, arrestance and dust holding capacity. ASHRAE has published these changes as Addendum B to 52.2-2007. They will not be issuing a “2008” version of the standard.

Appendix J has been added as part of Addendum B to 52.2-2007. To view the ASHRAE 52.2-2007 Appendix J results on the 30/30. Click here to see the report.

Note that after using Appendix J the 30/30 still exceeds 66% at the geometric mean of 3.46-micron.

ASHRAE 52.1-1992

The public review has ended with only 4 comments, all supportive of withdrawing the Standard. Per Mark Weber at ASHRAE Standards, it will now be on the agenda in Chicago for the ASHRAE Board to withdraw the Standard (rubber stamp). By the end of January 2009, ASHRAE 52.1 will cease to exist, but based on past standards, it will still be in customer specifications for a long time.

ASHRAE Standard 62.1

Table 4-1 has become out of date due to changes in the US ambient air quality regulations. This addendum relocates Table 4-1 to the new Informative Appendix J and makes appropriate wording changes in Section 4.1. In this way, changes to the NAAQS can be incorporated quickly, without need for public review and processing.

October 17, 2008

AAON voted “Most Valuable Product” and “Product of the Year” by Consulting-Specifying Engineer Magazine (Read it here – page 54)

TULSA, OK (October 20, 2008)—AAON is pleased to announce that its rooftop products with Digital Precise Air Control (D-PAC) have been voted Product of the Year - Gold in the HVAC category and Most Valuable Product (MVP) for the overall competition.

"We are delighted that the readers of this leading trade journal have recognized our equipment by honoring us with this award," says Norm Asbjornson, President and CEO of AAON. "We greatly appreciate this vote of confidence. It speaks to the great work of our employees and sales representatives who are committed to providing innovative HVAC products of the highest quality and performance. “

AAON provides specific and unique solutions for individual customer requirements through residential and commercial semi-custom and custom HVAC products including: air handling units, condensing units, chillers, rooftop units, make-up air units, heat recovery units and coils. Since the founding of AAON in 1988, AAON has maintained a commitment to design, develop, manufacture and deliver heating and cooling products which perform beyond all expectations and demonstrate the value of AAON to our customers.

Companies nominated their best products introduced or refined in 2007. Three finalists were selected in each of 11 categories by a panel of judges comprised of professional engineers who regularly design and specify HVAC, electrical, fire protection, and plumbing systems. Consulting-Specifying Engineers readers then voted to determine the ranking of the finalists as gold, silver, or bronze winners. Consulting-Specifying Engineers subscribers also cast one vote for the Most Valuable Product (MVP) distinction among all finalists.

“Competition was fierce this year; the judges had a hard time narrowing the finalists down to three for each category. We take this as a sign that manufacturers are investing more in new-product R&D, which is a huge win for the buildings industry and the environment,” said Jim Langhenry, publisher.

Additional information will be in the October issue of Consulting-Specifying Engineer.

About Consulting-Specifying Engineer

Consulting-Specifying Engineer is a monthly publication with a circulation of over 46,000 mechanical, electrical, and plumbing (MEP) engineers.

About AAON

AAON provides designs of the highest quality and performance that lead the HVAC industry.