ANSI AMCA 550-2015 Test Method for High Velocity Wind Driven Rain Resistant Louvers.pdf

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1、AIR MOVEMENT AND CONTROL ASSOCIATION INTERNATIONAL, INC. 30 West University Drive Arlington Heights, IL 60004-1893 U.S.A. E-Mail : infoamca.org Web: www.amca.org Tel: (847) 394-0150 Fax: (847) 253-0088 The Air Movement and control Association International, Inc. is a not-for-profit international ass

2、ociation of the worlds manufacturers of related air system equipment primarily, but limited to: fans, louvers, dampers, air curtains, airflow measurement stations, acoustic attenuators, and other air system components for the industrial, commercial and residential markets. The International Authorit

3、y on Air System Components AIR MOVEMENT AND CONTROL ASSOCIATION INTERNATIONAL INC. ANSI/AMCA Standard 550-15 Test Method for High Velocity Wind Driven Rain Resistant Louvers An American National Standard Approved by ANSI on Dec. 3, 2015ANSI/AMCA Standard 550-15 Test Method for High Velocity Wind Dri

4、ven Rain Resistant Louvers Air Movement and Control Association International 30 W. University Drive Arlington Heights, Illinois 60004AMCA Standard 550-15 was adopted by the membership of the Air Movement and Control Association International Inc. on October 26, 2015. It was approved by the American

5、 National Standards Institute on December 3 , 2015. The Air Movement and Control Association (AMCA) International Inc. will consider and take action upon all written complaints regarding its standards, certification programs or interpretations thereof. For information on procedures for submitting an

6、d handling complaints, write to AMCA International 30 West University Drive Arlington Heights, IL 60004-1893 U.S.A. European AMCA Avenue des Arts, numro 46 Bruxelles (1000 Bruxelles) Asia AMCA Sdn Bhd No. 7, Jalan SiLC 1/6, Kawasan Perindustrian SiLC Nusajaya, Mukim Jelutong, 79200 Nusajaya, Johor M

7、alaysia AMCA uses its best efforts to produce standards for the benefit of the industry and the public in light of avail- able information and accepted industry practices. However, AMCA does not guarantee, certify or assure the safety or performance of any products, components or systems tested, des

8、igned, installed or operat- ed in accordance with AMCA standards or that any tests conducted under its standards will be non-hazard- ous or free from risk. AMCA Publications Authority Objections DisclaimerMike Astourian Metal Industries, Inc. Mike Traver Arrow United Jeff Blake Construction Specialt

9、ies Inc. Russell Geist Construction Specialties Inc. Bill Vincent Construction Specialties Inc. Mike Steele Greenheck Fan Corporation Dustin Gagner Industrial Louvers Inc. Bill Bailey Nailor Industries Inc. Stoil Pamoukov Nailor Industries Inc. Randal Geedey Pottorff Dane Carey TAMCO Inc. Tim Orris

10、AMCA International Review CommitteeRelated AMCA Documents AMCA Publication 501 Application Manual for Louvers AMCA Publication 511 Certified Ratings Program - Product Rating Manual for Air Control Devices AMCA Publication 512 AMCA Listing Label Program ANSI/AMCA Standard 500-L Laboratory Methods of

11、Testing Louvers for Rating ANSI/AMCA Standard 540 Test Method for Louvers Impacted by Wind Borne Debris Related Publications Related Standards1. Purpose .1 2. Scope.1 3. Units of Measurement .1 3.1 System of units .1 3.2 Basic units .1 3.3 Airflow rate and velocity .1 3.4 Water flow rate1 3.5 Dimens

12、ionless groups 1 3.6 Physical constants .1 4. Definitions.1 4.1 Louver 1 4.2 Specimen 1 4.3 Performance variables 1 5. Test Specimen .1 5.1 Compliance of other sizes and variations .2 6. Apparatus .2 6.1 Test frame .2 6.2 Wind generator .2 6.3 Water supply .2 7. Calibration.2 7.1 Wind stream calibra

13、tion .2 7.2 Rainfall simulation and flow meter calibration 3 7.3 Water distribution check.3 7.4 Instruments 4 8. Test Procedures 4 9. Report and Results of Test .4 Annex A References (Informative).9 Annex B Reason for Two Louver Test Standards (Informative) 10 ContentsANSI/AMCA 550-15 | 1 Test Metho

14、d for High Velocity Wind Driven Rain Resistant Louvers 1. Purpose This standard establishes uniform laboratory test methods and minimum performance ratings for water rejection capa- bilities of louvers intended to be used in high velocity wind conditions. 2. Scope Tests conducted in accordance with

15、the requirements of this standard are intended to demonstrate the acceptabil- ity of the louver in which water infiltration must be kept to manageable amounts during a high velocity wind driven rain event. The test specimen can be approved in either an open or closed position as stated in Section 5.

16、 3. Units of Measurement 3.1 System of units SI units (The International System of Units, Le Systme International dUnits) are the primary units employed in this standard, with I-P units (inch-pound) given as the secondary reference. SI units are based on the fundamental values of the International B

17、ureau of Weights and Measures, and I-P values are based on the values of the National Institute of Standards and Technology which are, in turn, based on the values of the International Bureau. 3.2 Basic units The SI unit of length is the meter (m) or millimeter (mm); the I-P unit of length is the fo

18、ot (ft) or the inch (in.). The SI unit of mass is the kilogram (kg); the I-P unit of mass is the pound mass (lbm). The unit of time is either the minute (min) or the second (s). The SI unit of temperature is either the degree Celsius (C) or kelvin (K); The I-P unit of tem- perature is either the deg

19、ree Fahrenheit (F) or the degree Rankine (R). 3.3 Airflow rate and velocity 3.3.1 Airflow rate The SI unit of volumetric airflow rate is the cubic meter per second (m 3 /s); the I-P unit of volumetric flow rate is the cubic foot per minute (cfm). 3.3.2 Airflow velocity The SI unit of airflow velocit

20、y is the meter per second (m/s); the I-P unit of airflow velocity is the foot per minute (fpm). 3.4 Water flow rate The SI unit of liquid volume is the liter (L); the I-P unit of liq- uid volume is the gallon (gal). The SI unit of liquid flow rate is the liter per second (L/s); the I-P unit is the g

21、allon per min- ute (gpm). 3.5 Dimensionless groups Various dimensionless quantities appear in the text. Any consistent system of units may be employed to evaluate these quantities unless a numerical factor is included, in which case units must be as specified. 3.6 Physical constants The density of d

22、istilled water at saturation pressure shall be taken as 998.278 kg/m 3(62.3205 lbm/ft 3 ) at 20 C (68 F). The density of mercury at saturation pressure shall be taken at 13595.1 kg/m 3(848.714 lbm/ft 3 ) at 0 C (32F). The spe- cific weights in kg/m 3(lbm/ft 3 ) of these fluids under standard gravity

23、 in a vacuum are numerically equal to their densities at corresponding temperatures. 4. Definitions 4.1 Louver A louver is a device comprised of multiple blades. When mounted in an opening, a louver permits the flow of air but inhibits the entrance of other elements. 4.2 Specimen The test specimen i

24、s a representative sample of the louver model design and is intended to evaluate the water rejection capability of the louver model. 4.3 Performance variables 4.3.1 Water infiltration The amount of water passing through a louver during the test. 4.3.2 Rain fall simulation As calculated in Section 7.

25、2.3 and Section 7.2.5. 4.3.3 Wind stream velocity The movement rate of air generated during the test.2 | ANSI/AMCA 550-15 5. Test Specimen One 1000 mm x 1000 mm (39.37 in. x 39.37 in.) core area louver test specimen (as defined in ANSI/AMCA Standard 500-L) shall be submitted for this high velocity w

26、ind driv- en rain test. The same test specimen, or an identical test specimen, shall be tested in the full open position in accor- dance with the wind driven rain test detailed in ANSI/AMCA Standard 500-L and run at 22 m/s (50 mph) and 203.2 mm/ hr (8 in./hr) of rainfall. Operable louvers intended t

27、o be shut during a high velocity wind driven rain test can be closed for that test but must be open for the AMCA 500-L wind driven rain test. Louvers such as this will need to be clearly identi- fied on its test report, submittal and installation instructions for this qualification. T est specimens

28、shall be as built, unpainted, clean, degreased and without additional factory-applied coating on the speci- mens surfaces that would enhance water shedding capabil- ity. All devices tested shall be without a screen across the air passages of the louver. The test specimen is any fixed, operable, or c

29、ombination (fixed and operable) blade louver. The test specimen may also have the following devices attached directly or indirectly to the louver during testing and all are considered part of the test specimen: additional louver(s), damper(s), and sleeves. Sill pan(s)/flashing(s) may be used during

30、testing and are considered part of the test specimen. All types of seals on items, such as blades, jambs, head/sill, blade stops, and caulking, are considered part of the test specimen, exclud- ing sealing between the test specimen and test wall. Items such as an actuator, lever arm, manual operatin

31、g lever and/or turnbuckle used to keep operable louver/damp- er blades in the open/closed position are allowed during testing, but these items shall not be considered as part of the test specimen. When all blades are in the full open position, the horizontal distance between blades of any device and

32、 adjacent louver/ device shall not exceed 76.2 mm (3 in.). The back of the test specimens frame/sleeve shall be at least 610 mm (24 in.) from the back of the test chamber. 5.1 Compliance of other sizes and variations Manufacturing of sizes other than that which was tested shall utilize the same asse

33、mbly methods of construction as it pertains to fasteners (e.g., types, sizes and spacing). The distances between components/devices shall be the same as the test specimen. Testing of the louver specimen per this standard does not guarantee an equivalent test result for other sizes. The pass/fail com

34、pliance of a louver model only applies to the specific test specimen setup tested. Therefore, alternate designs, components, devices, etc. to a previously test- ed louver model will require an additional complete test to this standard. Additions to the specific test specimen setup (such as bird or i

35、nsect screens, blank-offs, or security bars) do not void the compliance of a louver model. 6. Apparatus 6.1 Test frame 6.1.1 The test frame shall be constructed of CMU blocks with a minimum size of 2.45 m x 2.45 m (8 ft x 8 ft) and a hole as shown in Figure 1 to allow the insertion of the louver. A

36、catch basin shall be constructed behind the louver, as shown in Figure 1, to catch the water that penetrates the louver. 6.1.2 The test frame shall be painted to prevent water from pene- trating the test apparatus. 6.1.3 The test frame shall be rigidly supported during the test period. 6.2 Wind gene

37、rator 6.2.1 The wind generator shall provide a constant wind profile over the entire face of the louver for the specified time peri- od to a maximum wind stream velocity of 49 m/s (110 mph). 6.2.2 If the wind generator is unable to provide the required constant profile as determined by wind stream c

38、alibration (Section 7.1), air flow from the wind generator shall be direct- ed and smoothed by suitably shaped baffles (see Figure 2). 6.3 Water supply 6.3.1 Water shall be supplied to the wind stream using a sprinkle pipe system mounted on a movable frame capable of simu- lating a uniform 223.5 mm/

39、hr (8.8 in./hr) of rainfall over the test specimen. The simulated rainfall and flow meters shall be calibrated, and the water distribution shall be checked as noted in Section 7.2 and 7.3. 7. Calibration 7.1 Wind stream calibrationANSI/AMCA 550-15 | 3 7.1.1 The wind stream velocity shall be measured

40、 on a vertical plane grid having dimensions of 2.44 m wide x 1.22 m high (8 ft wide x 4 ft high) and grid dimensions of 610 mm x 610 mm (24 in. x 24 in.), located 610 mm (24 in.) in front of the test frame (without the test specimen in place) with the lower 2.44 m (8 ft) dimension in line with the b

41、ottom edge of the test frame opening. (See Figure 3.) 7.1.2 The measured wind stream velocity at the center of each grid square shall be within 10% of the required axial veloc- ity for each wind speed. 7.1.3 Upon completion of the wind stream calibration, the dis- tance from the test frame to the ou

42、tlet of the wind genera- tor and any necessary baffle configurations shall be noted and maintained while conducting the test as described in Section 8. These dimensions should be noted in the test report under calibration data and calculations. 7.2 Rainfall simulation and flow meter calibration A ma

43、ximum of six months prior to conducting the test, the flow meter(s) shall be calibrated using the method described in Section 7.2.1 through Section 7.2.6. 7.2.1 Prepare an apparatus to capture any water which would enter the wind stream during an actual test. 7.2.2 Commence water insertion for a per

44、iod of one minute and capture the water. Record the flow meter reading (gal/min) during this process. 7.2.3 Convert the flow meter reading to rainfall simulation using the following formula:Eq. 7.2.3 SI x Eq. 7.2.3 I-P Note: For Equation 7.2.3 SI and Equation 7.2.3 I-P, 4,459,346 mm 2and 6,912 in. 2

45、refer to the expected projection area of the water that hits the wall, respectively. 7.2.4 The quantity of rainfall simulation determined in Section 7.2.3 shall be within 5% of the desired rainfall simulation of 223.5 mm/hr (8.8 in./hr). 7.2.5 Measure the volume of water (mm 3in. 3 ) captured and co

46、n- vert this to rainfall simulation (mm/hr in./hr) using the fol- lowing formula: yEq. 7.2.5 SI y Eq. 7.2.5 I-P Note: For Equation 7.2.5 SI and Equation 7.2.5 I-P, 4,459,346 mm 2and 6,912 in. 2refer to the expected projec- tion area of the water that hits the wall, respectively. 7.2.6 The rainfall s

47、imulation determined in Section 7.2.3 (x) shall be within 5% of the rainfall simulation determined in Section 7.2.5 (y). 7.3 Water distribution check A maximum of six months prior to conducting the test, the water distribution check over the 2.44 m wide x 1.22 m high 8 ft wide x 4 ft high) wall surf

48、ace shall be calibrated using the method outlined herein. The water distribution system must introduce water into the wind stream so that it strikes the wall area. 7.3.1 Prepare eight 610 mm (24 in.) squares of the absorptive material (e.g., roofing felt) and weigh each sample. From this data, determine the average wei