1、 STD-ASHRAE JOURN Yl-3 TA-ENGL 1997 0759b50 0545439 40b When it comes to managing buildings and re1 ieving s t res, not hing with our new M-Senes workstations, youll be able to do things that compares to Metasys. And MOW fhe industry-leading building automation sysfen is better thabi ever. were impo
2、ssible until now. Like viewing the status of all your buildings air handling systems on one screen and And our Metasys Connectivity Partners represent ILS COM- panies which make more than SOO products tested and approved for use with Metasys. In addition -to providiuig BACnet“ and LonWorks“ solution
3、s, Metaqs can also communicate seamlessly with global products like CIB, Profibus, and more than SO industrial and other automation standards. And Includnq thats only +he beginning. u When you combine new Mefasys data visualization technology pinpointing inefficient energy use and potential cost sav
4、ings at a gance. Plus, with M-Web: you can easily monitor systems and equipment from anywhere in the world via the Internet. A title, purpose and scope (TPS) for the Standard 90.1 guideline was approved by ASHRAEs Board of Directors; and, A draft outline for the Standard 90.1 guideline was discussed
5、 by the SSPC. Jarnagin said the committee has sched- uled an interim meeting for April to ad- dress comments on ISCs that cover for- mat and compliance, mechanical, enve- lope, power, lighting and energy cost budget. The review started Jan. 8 and concluded March 9. Jarnagin said the committee has tr
6、ied to address many of the issues but changes also can be ad- dressed after the draft is approved and placed under continuous maintenance. The most contentious ISC covers building envelopes. The committee has removed the Tier II fuel requirements that generated thousands of comments from the electri
7、c industry in the first public review and thousands of comments from the gas industry in the second. That is- sue, said Jarnagin, likely will be ad- dressed in the Standard 90.1 guideline document. The ISC on format and compliance clarifies that 90.1 requirements apply to new and existing buildings,
8、 but only to the parts of an existing building that are being changed. Residential IAQ Standard in Draft Stage CHICAGO-The committee developing ASHRAE Standard 62.2P, Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings, has produced a draft standard that sets mini- mum ve
9、ntilation rates for houses and low-rise apartments. Max Sherman, Fellow ASHRAE, chair of the committee that developed the draft, said the standard would provide guidance on how to achieve acceptable IAQ for new residential buildings by us- ing natural ventilation or a mechanical system. Depending on
10、 the approach se- lected, the designer, architect, engineer or contractor would determine the venti- lation rates using a simple formula. Sherman noted that the draft was pre- pared with input from residential build- ing-related organizations. It is expected that ASHRAE will announce this spring whe
11、n the draft will be available for pub- lic review. ASHRAEs Board of Directors also approved four addenda to ANSI/ ASHRAE Standard 62-1989, Ventilation for Acceptable Indoor Air Quality, sub- ject to a 30-day appeal period of the Boards action. The new addenda: Specifj that thermal comfort require- m
12、ents are not covered by the standard (addressed in ASHRAE Standard 55, Thermal Environmental Conditions for Human Occupancy). Add a new section to the scope stat- ing that complying with the standard does not achieve acceptable IAQ for a variety of reasons, e.g., susceptibility of people, range of c
13、ontaminant strengths. Clarify misunderstandings regarding carbon dioxide as a contaminant in build- ings and its use as an indicator of ac- ceptable indoor quality. Clarify that the recommended mini- mum ventilation rates do not accommodate a moderate amount of smoking by deleting the words “and a m
14、oderate amount of smoking” fkom the standard. In approving this item, the ASHM Board of Directors noted that environmental tobacco smoke is recognized as a carcinogen by health authorities and that by removing the refer- ence to smoking may lead to a reduction in ventilation rates. Additional progre
15、ss on other smok- ing-related addenda was reported by the committee revising the standard. One addendum describes how to separate smoking permitted areas from areas where smoking is not permitted. 8 ASHRAE Journal March 1999 9 N ew BAC net Addendum Is Approved CHICAGO-The new BACneaP adden- dum to A
16、SHRAEs BACnetTM Standard 135-1995 will make it easier to monitor and control building systems from re- mote locations through the Internet. BACnet Committee Chair H. Michael Newman, Member ASHRAE, said it al- ways has been possible to use BACnet with Internet protocol networks by add- ing external r
17、outing equipment. BACne IP, however, will allow manufacturers to build Internet capability directly into their BACnet automation and control devices. “This will make it much easier for us- ers with Internet connections to view and control equipment and systems in their facilities anywhere in the wor
18、ld,” he said. The addendum, 135a, BACneIP, was approved by ASHRAEs board of direc- tors subject to a 30-day appeal period. ASHRAE Creates Learning Institute CHICAGO-ASHRAE has established the ASHRAE Learning Institute to fur- tber strengthen the Societys commitment to providing life-long educational
19、 oppor- tunities for students and professionals in the HVAC enhance- ments to BACnets alarm processing and reporting capabilities; and a new ap- proach to standardizing the generation of periodic or change-driven “trend logs,” such as those used for monitor- ing temperature and pressure. in www.d( t
20、he industry. An air diffusers company that changes to meet your needs. A a a h h h . Donco brings you a fresh way to look at air products. At Donco, we do whatever it takes to get you the products you need. And if that means creating a special piece for you, well do it. And we do it well. ThatS beca
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22、ervice Card) ASHRAE Journal ,2211 March 1999 9 STDmASHRAE JOURN 41-3 TA-ENGL 1799 0757b50 0545447 355 2 I No Health Hazard Found In Study of Aircraft IAQ CHICAGO-Data collected in a new study of aircraft cabin air quality shows that there are no significant air quality- related health hazards for pa
23、ssengers or crews. The reported conclusions are pre- liminary results from research sponsored by ASHRAE and presented at ASHRAEs 1999 Winter Meeting. The study measured contaminants and environmental parameters at the same time comfort questionnaires were completed by passengers and flight at- tenda
24、nts, said Jolanda N. Janczewski, Ph.D., president of Consolidated Safety Services, Inc. in Fairfax, Va. “Although the purpose of this study was not to collect large amounts of data but to develop a testing protocol that could be used in future studies, some interesting possible trends were identi- f
25、ied for future research,” she said. The types of contaminants measured on the aircraft included many of the same contaminants that are measured when evaluating a buildings indoor air qual- ity. Environmental parameters measured were carbon dioxide, cabin altitude, rela- tive humidity, noise and temp
26、erature, she said. “Overall, microbial sampling results detected no significant human patho- gens and that airborne bacteria and fungi concentrations were relatively low when compared with levels typically found in buildings, especially during flight when the aircraft environmental control system wa
27、s operating. Other chemical contami- nants were found to be either below the limits of detection or well within normal parameters,” she said. Data was gathered during eight Boeing 777 commercial airline flights operated by an U.S. carrier. Four were domestic flights between 1,000 and 1,500 miles, an
28、d four were international flights greater than 3,000 miles. While airborne, flight atten- dants and passengers were asked to complete a comfort questionnaire on a variety of factors, said Dr. Janczewski. “Analyses of the questionnaire re- sponses showed that flight attendants tend to cite health-rel
29、ated symptoms, such as headache, nausea, sore throat and itchy eyes, more often than passen- gers. They also are more likely than pas- sengers to relate adverse health symp- toms to flying. Except for the flight at- tendants poor rating of cabin humidity, none of the other air quality factors were r
30、ated particularly low or high, including cabin air odor, cabin air quality or lava- tory odors,” she said. % Stainless Steel Ceiling Diffusers. Our 304 Stainless Ceiling Diffusers are available in optional 316 stainless, with surface mount or lay in t-bar, *1 to 4-way throw patterns, and optional S-
31、44 Opposed Blade amper for volume control. Call us today for your free catalog. *Louvered Ceiling Diffusers Perforated Supply isolating the supply fan and motor from the fan cabinet, preferably on springs; and speciing materials to mini- mize noise, such as duct liner or sound traps in ducts, sound-
32、rated wall assem- blies and construction breaks, he said. Another important consideration is the placement of components to minimize noise; for example, locating rooftop units above hallways and restrooms, not above classrooms, and locating the compressors and condenser fan outside the classroom. On
33、ce the HVAC system is installed, it is important to ensure the system is bal- anced so the system is not delivering more air than needed and no diffuser has to handle more air than necessary, he said. Ljlly cited an example illustrating how a classroom HVAC system can be de- signed to achieve an ind
34、ustry-accepted level (NC-30 criteria) using currently available technology and materials. The example assumes a central HVAC unit serving a wing of six classrooms, each receiving 2,000 cfm (900 Lis) of con- ditioned air. The main supply duct is lo- cated above the corridor and each class- room has a
35、 variable-air-volume (VAV) box located above the classroom ceiling near the entry door. The supply air is pro- vided from four ceiling diffusers and a return air transfer duct is provided be- tween the classroom ceiling plenum and the corridor ceiling plenum, he said. The primary noise control featu
36、res for this system include an efficient supply fan with minimum noise generation, a sound attenuator in the main supply duct system close to the fan, a VAV box for minimum radiated noise, and a 2 in. (5 cm) thick duct liner in the low pressure ductwork between the VAV box and the supply diffusers.
37、This system was shown to meet NC- 30 in the classroom with apredicted noise level of 36 dB, said Lilly. established reputation for reliable products and uncompromising quality. In stock product is shipped within 24 hours, custom built units specified by Power Line ventilation specialists shipped in
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40、ermit mounting on combustible surfaces and may be individually controlled or accept command inputs from a BMCS to automatically modulate the humidifiers output. Gas fired GH SERIES humidifiers are only one of the many leading edge technologies offered by NORTEC, an industry leader in electrode steam
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42、il. 2740 Fenton Road Ottawa, ON K1T 3T7 Tel: 613-822-0335 Fax: 613-822-7964 WHEN YOU NEED HUMIDITY (Circle No. 17 on Reader Service Card) STDmASHRAE JOURN 41-3 TA-ENGL 1999 0759b50 05Y5Y55 bC9 Thousands of people left photo) await the opening of the 1999 AHR Expo. Attendees pack the aisles between
43、the nine acres of exhibits at McCormick Place South in Chicago. Record Show Pleases Crowd CHICAGO-To borrow the late Ed Sullivans expression, the 1999 Interna- tional Air-conditioning, Heating and Re- frigerating Exposition (AHR Expo) was a really big show. Thousands of people gathered to see the 40
44、1,000 ft2 (9 acres) of exhibits. The show was held at the gigantic new McCormick Place South on Jan. 25-27. It was 19% larger than the previous record show, held in 1995 in Chicago. Clay Stevens of the show management firm, International Exposition Company, said that the new center was “suited per-
45、fectly to the show.” The show has been a sell out for the last four years. In addi- tion to accommodating many more exhibi- tors, the new facility allowed the show to be held on a single floor for the first time in many years. Exhibitors seemed to like the arrange- ment. John Halligan, of Delta Cool
46、ing Tow- ers said this was the fms second year at the Expo and that the traffic was “fantas- tic.” “Chicago is always a good show,” ac- cording to Lon Appel of Kavlico. More than 33,500 attendees visited the show, which includes 17% international attendees. This is an increase of 14,000 more visitor
47、s than attended last years show in San Francisco. Mike Chapleau, a manufacturing rep in New Fairfield, Conn., tries to attend AHR Expos every couple of years to keep up with technology. He said indoor air quality issues are making attendance more important than ever. “It affects so many aspects of o
48、ur business-dehu- midification, humidification, right down to the construction of air handlers.” Thomas Sarracco, Member ASHRAE, of Sarracco Heating burns clean, and is easily the most efficient fuel available today. Natural gas is also one of the reasons that Servel air conditioners are todays most
49、 efficient lifespans up to two times longer than conventional units, and drastically reduced electrical demand charges. Factor in low installation costs, superb flexibility and space saving designs and its easy to see why commercial cooling systems Serve1 gas-fired efficiency means low operating costs, choice Servel air conditioning systems are the cool Clean natural gas Think what youll save hl SERVEL ROEUR ROBUR CORPORATION 2300 LYNCH ROAD EVANSVILLE, INDIANA 4771 1-2951 USA PHONE*8
