Since the medical office building is a healthcare facility, it is very important that the building complies with this standard. Ashrae standard 3420 establishes a simple means of referring to common refrigerants instead of using the chemical name, formula or trade name. The following links are to online readonly versions of these standards. Air media magazine, summer 2016 by robert burkhead, blue heaven technologies and michael corbat, custom filter, llc over the last few years, the sspc ashrae 52. It has not been processed according to the ansi requirements for a standard and may contain material that has not been. Part 2 of this addendum adds a new informative appendix to standard 52. Foreword the first part of this addendum is part of a larger plan to combine standards 52. Corbat is a member of nafa, and chair of ashrae standard 52.
First published in 1973 as standard 62, standard 62. Standard for the design of highperformance green buildings except lowrise residential buildings. All documents linked from this page are in pdfformat. Indoor return air temperature standard rating conditions. Bsr ashrae iccusgbcies addendum ab to ansi ashrae icc. Install the test filter in the test duct and obtain clean air filter resistance or initial pressure drop. This standard is under continuous maintenance by a standing standard project committee sspc for. Specific information on the contents of each addendum and approval dates for addenda are included in informative appendix k. It also established a uniform system for assigning reference numbers and safety classifications to refrigerants. Filtration standards and applications ashrae arkansas. The first change required the mandatory calculation of dust holding capacity and arrestance to be changed to the 52. Ansi ashrae standard 552017 thermal environmental conditions for human occupancy read free online purchase print or pdf.
Low flow low pressure chw and cw system large dt where necessary 3. Understanding merv october 2018 nafa users guide for ansiashrae standard 52. The 2010 edition combines standard 552004 and the ten approved and published addenda to the 2004 edition into one easytouse, consolidated standard. Content description first published in 1973as standard 62, standard 62. In addition to the addenda changes several date specific requirements in the ashrae 90. Variable primary chw flow system saves 2025% vs prisec. Airhandling and natural ventilation systems shall not recirculate or transfer air from an ets area to an. It is merely informative and does not contain requirements necessary for conformance to the standard.
Ashrae 522 explained air quality solutions and controls. Performance rating of computer and data processing room. Addenda supplement package contains addendum a standard 52. Originally titled ashrae standard 5276, the purpose and. The chart below is useful in understanding the relationship between ashrae test standard 52. The only way they will work is if you click the link within the ashrae website. All books are in clear copy here, and all files are secure so dont worry about it. Nafa users guide to iso 16890 national air filtration. This is sometimes referred to as a free cooling coil, econ. Understanding merv nafa users guide to ansiashrae 52. The 2017 edition of ansi ashrae standard 55 incorporates seven published addenda to the 20 edition, and provides three compliance methods. Microsoft powerpoint arkansas ashrae presentation filter test stds apps 1206064 author. Ashrae refrigerant designations current as of june 2016.
What you need to know about the new energy standard for. Standard 55 specifies conditions for acceptable thermal environments and is intended for use in design, operation, and commissioning of buildings and other occupied spaces. This standard details a test procedure to be used for evaluating the performance of aircleaning devices as a function of particle size. Ashrae 52 2 2007 what does this standard stand for. While this was intended to reveal the drop in efficiency of charged filters, it only shows a small amount of the likely drop. This will generate particles covering the 12 required particle size ranges for the test see table 2. With more than 57,000 members from over 2 nations, ashrae is a diverse organization dedicated to advancing the arts and sciences of heating, ventilation, air conditioning and.
Foreword ansi ashrae standard 552010 is the latest edition of standard 55. Ashrae standard 170 outlines additional roomspecific requirements 7. Content description updated guidance for testing the removal efficiency of aircleaning devices now available. The 2010 edition combines standard 552004 and the ten approved and published addenda to the 2004 edition into one easytouse, consolidat ed standard.
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