Civil Engineering Reference
In-Depth Information
The main purpose of another one of ASHRAE standards, ASHRAE 90.1
(ASHRAE 2013b ) which probably is the most important standard that depicts the
requirements for an energy effi cient building design is to establish the minimum
energy effi ciency requirements of buildings for design, construction, and a plan for
operation and maintenance and utilization of on-site, renewable energy resources.
The early versions of the standard were published in 1975 and since then it has been
updated regularly. To comply with the requirements of this standard the building
shall comply with requirements depicted for Building Envelope, Heating,
Ventilating, and Air Conditioning, Service Water Heating, Power, Lighting and
Other Equipment in a prescriptive line-by-line method. As an alternative two meth-
ods of performance-based energy simulation are represented, which complying
with one allows for standard compliance, and exceeding the limits depicted by the
other method allows for rating the building in sustainability scoring systems.
On the other hand AHRI standards are a group of standards developed by the
American Heating and Refrigeration Institute to establish testing, rating, and mini-
mum data requirement for different HVAC equipment. These standards are intended
to provide guidance for the industry players in order to make them capable of rec-
ognizing and relying on the published data about effi ciency of the equipment. One
of the valuable information in these standards is the allowable test tolerance of the
equipment when it undergoes the proposed testing procedure for its effi ciency to be
evaluated. This is proved to be a vital information for risk based decision making
where we will discuss it in the fi nal chapter of this topic.
For a comprehensive list of AHRI standards refer to http://www.ahrinet.org/
standards.aspx web site. Some of the most common AHRI standards are standard
310 ( ANSI/AHRI/CSA 310/380-2004 ) that targets the packaged terminal air-
conditioners and heat pumps and its performance testing requirements, standard
430 ( ANSI/AHRI 430-2009 ) that targets central station air handling units and its
performance testing requirements, standard 440 ( ANSI/AHRI 440-2008 ) that
targets room fan-coils performance testing requirements, and standard 550
(AHRI Standard 550/590 (I-P), 2011 ) that targets water-chilling and heat pump
water-heating packages using the vapor compression cycle and its performance
testing requirements.
Standard 340 ( ANSI/AHRI 340/360-2007 with Addendum 2) and standard 365
( ANSI/AHRI 365 (I-P)-2009 ) target commercial and industrial unitary air- conditioning
and heat pump equipment, and commercial and industrial unitary air-conditioning
condensing units, respectively, are also among the most useful standards in this group.
References
ANSI/AHRI/CSA 310/380-2004: Standard for packaged terminal air-conditioners and heat pumps
(CSA-C744-04), Air-Conditioning, Heating, Refrigeration Institute, Arlington, VA, USA
ANSI/AHRI 340/360-2007 with Addendum 2: performance rating of commercial and industrial
unitary air-conditioning and heat pump equipment, Air-Conditioning, Heating, Refrigeration
Institute, Arlington, VA, USA
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