ARI 840-1998 Unit Ventilators《通风设备系统》.pdf

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1、STD.AR1 840-ENGL 1978 R 035212U 00Lll5b bb4 I 1998 STANDARD for AIR-CONDITIONING classifications; testing and rating requirements; minimum data requirements for published ratings; performance requirements; operating requirements; maricing and nameplate data; and conformance conditions. 1.1.1 Intent.

2、 This standard is intended for the guiance of the industry, including manufacturers, engineers, instailen, contractors, and users. 1.13 Review and Amendment. This standard is subject to review and amendment as technology advances. Section2. Scope 2.1 Scope. This standard applies to all factay-made e

3、quipment as defined in the following standards which also meet the requirements of 3.4 and are labeled as a unit ventilator. a. Room hail air-conditioners, ARI Standard 440. b. Packaged terminal air-conditionen, ARI Standard 3 10/380. c. Unitaq air-conditioners and heat pump units, ARI Standard 210/

4、240. d. Water-source heat pumps, AF Standard 320. e. Ground water-source heat pumps, ARI Standard 325. f, Ground soure ClOSed-lp heat pumps, ARI Standard 330. 2.2 Exclusions. This standard does not apply to equipment as defined in the following standards a. Room air-cmditionerS, AHAM Standard RAC-1

5、or ANSI Standard 2234.1. b. Centrai-station air-handling units, AlU Siandard 430. Section 3. Definitions 3.2 Published Rating. A statement of the assigned values of those performance characteristics, under stated rating conditions, by which a unit may be chosen to fit its appiicatin. These dues appl

6、y to all units of like nominai size and type (identification) produced by the same manufkturer. As used herein, the term “published rating“ includes the rating of ail performance Characteristics shown on the unit or published in specifications, advertising or other literature controlled by the manuh

7、cturer, at stated rating conditions. 33.1 Standard Rating. A rating based on tests performed at Standard Rating Conditions. 33.2 Application Rating. A ratuig based on tests performed at application rating conditions (other than Standard Rating Conditions). 33 5hrrl1,“ 5hould.“ I Recommended“ or Yt I

8、s Recommended“ “Shall,“ “should,“ “recommended“ or “it is recommended“ shail be interpreted as follows: 33.1 Shall. Where “shall“ or “shall not“ is used for a provision specied, that provision is mandatory if compliance with the standard is claimed. 333 Should, Recommended or It Is Recommended. “Sho

9、uld,“ “recommended“ or “it is recommended“ is used to indicae provisions which are not mandatory but which are desirable as good practice. 3.4 Unit Ventilator. A factory-made assembly, equipped with outside aU ventilation and return air dampers capable of introducing ventilation air of at least 80%

10、of rated Standard Air Row, while also having the capabiiity to provide any combination of the following functions: humidity control, heating or cooling, and filtering of air. The source of humidity control, heating or cooling suppleanenmy to that fim ventilation air, may be remote or an integrai par

11、t of the unit itself. This equipment is designed for fiee delivery of air into a room, but may be applied with minimai ductwork having a static resistance not exceeding 0.50 in. H20 125 Pa. This equipment can be eithervertical floor standing orhorizontailymounted, in or adjacent to the space it serv

12、es. This equipment is provided with air Capacities of 3000 ch Cl416 m3/sl or less. 3.1 Dejnitions. Ali terms in this document will foilow the standard industry definitions established in the current edition of ASHRAE Terminology of Heating, Ventilation, Air Conditioning and RejFgeration, unless othe

13、rwise defined in this section. 1 Copyright Air-Conditioning and Refrigeration Institute Provided by IHS under license with ARINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Table 1. Arrangement of Unit Ventilators I.D. Fan I.D. Coils Description Self-contained Uni

14、t Ventilator Water-Source Self Contained Unit Ventilator Fan-Coil Unit O.D. Fan Comp* O.D. Coil lapor CompressionNapor Compression & (backup heat) (electric) (hydronic) (steam) Vapur Compression/electric Vapor Compressiodhydronic Vapor Compressiodsteam Vapor Compressionhione I.D. Fan I.D. Coils r _

15、Vapor Compressioflapor Compression & (backup heat) (electric O.D. Fan Comp* O.D. Coil Vapor Compresiodelectric Vapor Compression/hydron.c Vapor Compressiodsteam Vapor Compressionhone I.D. Fan I.D. Coil(s) $aper CompressionNapor Compression & (backup heat) (electric) (hydronic) (steam) h ydr onic/ele

16、clric hydronichydronic h y dr onidsteam h ydr onichone O.D. Fan Comp O.D. Coil ART Standard 3 10/380 3 10/380 320,325 and 330 210/240 210/240 440 Arrangement Water1 LD. Fan U I.D. Coil(s) I* Cmpressor may be indoors or outdoors. 2 Copyright Air-Conditioning and Refrigeration Institute Provided by IH

17、S under license with ARINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AR1 STANDARD 840.98 3.4.1 Self-contained Unit Ventilators. Any equipment as denned in ARI Standard 310/380 with ventilation capabiities as defined in 3.4. 3.43 Water-Source Self-contained Unit

18、Ventilators. Any equipment as dened in ART Standards 320,325, or 330 with ventilation capabilities as defined in 3.4. 3.43 Fan-Coil Unit Ventilators. Any equipment as dened in ARi Standards 440 or 210/240 with ventilation capabiities as dened in 3.4. Section 4. Classifications 4.1 Methods of Classif

19、cation. Unit ventilators may be classified accorduig to the foliowing (see arrangements in Table 1): 4.1.1 By mounting arrangement a. Vertical, floor or wail mounted b. Horizontal, ceiling mounted 4.1.2 By methods of capacity control a. DamperControl b. Non-Damper Control 4.1.3 By method of providin

20、g heating a. Hydronic b. Steam c. Elechic elements d. Heatpump 4.1.4 By method of providing mechanid cooling 4.1.4.1 Hydronic 4.1.43 Direct Expansion a. Singlepackage b. Splitsystem 4.15 By humidity control a. Dehumidication b. Humidification Section 5. Testing and Rating Requirements 5.1 Standard R

21、atings. 5.1.1 Standard Performance Ratings. All applicable cooling capacity, heating capacity, power input, efficiency, standard air flow, fluid flow, and pressure drop &gs shall be verified by tests conducted at the Standard Rating Conditions, in accurdance with the applicable standard(s) reference

22、d in 3.4.1,3.4.2, and 3.4.3. 5.13 Standard Ventilation Rate. The Standard Ventilation Rate, expressed in percent, &ail be determined in accordance with ANSVASHRAE Stanard 79 by conducting two separate tests at the conditions specified in Table 2. References may also be made to ANSVASHRAE Standard 79

23、 for a typical duct connection arrangement. 53 Electrical Conditions. Ail Standard Rating tests shail be performed at the nameplate rated voltage and frequency. For units with dual nameplate voltage ratings, standard rating tests sha be performed at both voltages, or at the lower ofthe two volrages,

24、 if oniy a single standard rating is to be published. 5.3 Equipment. Fdm, any air-mixers, &-inlets, grilles, deflecting vanes, and any other regularly-furnished equipment shall be in place during all following tests. 5.4 Testing Requirements. All ratings shall be verified by tests conducted in accor

25、dance with ANSUASHRAE Standard 79. 5.4.1 Room Air Test. The Room Air Test shall be conducted with the ventilation air inlet opening sealed so that no air flow enters the unit except from the room side. The flow rate shall be the value measured from flow meter 1 as depicted in Figure 1. 5.4.2 Ventila

26、tion Air Test. The Ventilation Air Test shall be conducted with air flow measuring apparatus connected to the veaitilation air opening. The flow rate shail be the value measured from flow meter 2 as depicted in figure 1. Flow meter 1 and any associated duct workshallbemoved for this test. Units shal

27、l be tested without any outside air intakes, louvers, wa boxes, etc. in place. The unit shall be tested with an extemai static of -0.05 in. of H20 -0.012 Wal measured at the ventilation air inlet to simulate the pressure drop of a typical device. 3 Copyright Air-Conditioning and Refrigeration Instit

28、ute Provided by IHS under license with ARINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Figure 1. Standard Ventilation Rate Test Set-up 4 Copyright Air-Conditioning and Refrigeration Institute Provided by IHS under license with ARINot for ResaleNo reproduction or

29、 networking permitted without license from IHS-,-,-AR1 STANDARD 840-98 Room Air Test Ventilation Air Test inlet Air Temperature Heating or Cooling Means Static Pressure difference between room air inlet and outlet 70F 21.l0C to 80F %.7“C &y bulb 70F 21.1“C to 80F 26.7“C dry bulb Not in Operation 0.0

30、 in. &O 10.0 Wal Not in peration - Free Discharge -0.05 in. &O -0.012 Wal Static Pressure at ventilation air 1 inlet Fan Speed Setting Inside /utside Damper Position Same as for Standard Cooling Rating Condition Condition Adjusted for full Roam Air (no ventilation air) room air) Same as for Standard

31、 Cooling Rating Adjusted for full Ventilation Air (no Face/Bypass Damper Position (if ANSVASHAE Standard 41.2 Test Arrangements equipped) Adjusted for Full Face, 0% Bypass Adjusted for Full Face, 0% Bypass See Figure 14 of ANSVASHEUE Standard 41.2 See Figure 13 of ANSVASHAE Standard 41.2 5.43 The St

32、andard Ventilation Rate shaii be the ratio of air flow measured in accordance with 5.4.2 over the air flow measured in accordance with 5.4.1 expressed as a percent. 5.5 Application Ratings. Ratings at conditions other than the Standard Rating Conditions may be published as application ratings, and s

33、hall be based on data determined by the methods of testing prescribed in the applicable Standars references in 3.4.1,3.4.2 and 3.4.3. Wherever appiication ratings are published of printed, they shail include, or be accompanied by, the Standard Rating, clearly designated as such, including a statemen

34、t of the conditions at which the ratings apply. 5.6 Tolerances. To comply with this standard, published or reported cooling capacity, heating capacity, power input, efficiency, sandard air flow, fluid flow and pressure drop shall be based on data obtained in accordance with the provisions of this se

35、ction, and shall be such ihat any produclion unit selected at randm and tested in accordance with the standard shall achieve 100% of rated or published value, less the allowable tolerance specified in the applicable mdard(s) referenced in 3.4.1,3 -4.2, and 3.4.3. The tested Standard Ventilation Rate

36、 sha be no less than 95% of the rated value and no less than 80% of the airflow measured in 5.4.3. Section 6. Minimum Data Requirements for Published Ratings 6.1 PubIished Ratings. Wherever application ratings are pubiished or printed, they shail include or be accomplished by the Standard Rating cle

37、arly designated as such, including a statement of the conditions at which the ratings apply- 6.2 Content of Published Ratings. Published ratings shall coIsist ofthe Standard Ventilation %te, expressed in percent, and any other information as required by all applicable standard(s) referenced in Secti

38、ons 3.4.1, 3.4.2 and 3.4.3 . Section 7. Operating Requirements 7.1 PerJ5ormance Requirements. To comply with this standard, unit ventjlams sha be designed and produced so as to perform in accordance with the provisions of this section, in such a manner that any production unit will meet the requirem

39、ents detailed herein. 7.1.1 SeIf-Contained Unit Ventilators. All performance tests for self-contained unit ventilators shaii be tested in accordance with the provisions of ARI Standard 310/380. 5 Copyright Air-Conditioning and Refrigeration Institute Provided by IHS under license with ARINot for Res

40、aleNo reproduction or networking permitted without license from IHS-,-,-AR1 STANDARD 840-98 7.13 Water-Source Self-contained Unit Ventilators. Ail performance tests for water-source self-contained unit ventilators shall be tested in accurdance with the provisions of Alti Standards 320,325 and 330 .

41、7.1.3 Fan-Coil Unit Ventilators. Ali perfmance tests for fan-c.mil unit ventilators shail be tested in accordanm with the provisions of ARI Standards 440 and 210/240. Section 8. Marking and Nameplate Data 8.1 Marking and Nameplate Data. The unit nameplate shall display, as a minimum: 3.2 Recommended

42、 nameplate voltages for 60 Hertz systems shail include one or more of the equipment nameplate voltage ratings shown in Table 1 of AlU Standard 110. Recommended nameplate voltages for 50 Hertz systems shall include one or more of the utilization voitages shown in Table 1 of IEC Standard Publication 3

43、8. Section 9. Voluntary Conformance 9.1 Conformance. whie ccmfomiance with this standard is voluntary, conformance shall not be claimed or implied for products or equipat within its Purpose (Section 1) or Scope (Section 2) unless such claims meet ali of the requirements of the standard. a The name o

44、f the manufacturer andor the supplier responsible for the performance ratings. b. The model number of the equipment. 6 ! Copyright Air-Conditioning and Refrigeration Institute Provided by IHS under license with ARINot for ResaleNo reproduction or networking permitted without license from IHS-,-,- -

45、STD.ARI 840-ENGL 1998 E 0352320 00111b5 b77 O AR1 STANDARD 840-98 APPENDIX A. REFERENCES = NORMATIVE Al Listed here are aii standards, handbooks and other publications essential to the formation and implementation of the standards. AU references in this appendix are considered as part of the standar

46、d. AL1 ANSVASSHRAE 41.2-1987, Standard Methods for Laboratory Airjow Measurement, 1987, Amexican National Standards Institute/American Society of Heating, Refrigeration, and Air-conditioning Engineers, Inc., 11 West 42nd Street, New York, NY 10036 U.S.AJ1791 Tullie Circle, N.E., Atlanta, Georgia, 30

47、329, U.S.A. A13 ANSVASHRAE 79-1984, Methods for Rating Room Fan-Coil Air Conditioners, 1984, American National Standards Tnstitute/herican Society of Heating, Refrigeration, and Air-conditioning Engineers, Inc., 11 West 42nd Street, New York, NY 10036 U.S.A./1791 Tullie Circle, N.E., Atlanta, Georgi

48、a, 30329, U.S.A. A13 ARi Standard 110-97, Air Conditioning and Refrigerating Equipment Nameplate Voltages, 1997, Air-conditioning & Refrigeration Institute, 4301 N. FauEax Drive, Suite 425, Arlington, VA 22203, U.S.A. A1.4 ARi Standard 210/240-94, Unitary Air- Conditioning and Air-Source Heat Pump E

49、quipment, 1994, Aircondiaonuig & Refrigeration Institute, 4301 N. Fairfax Drive, Suite 425, Arlington, VA 22203, U.S.A. AL5 ARJ StandXd 310/380-93/CSA-C744-93 Packaged Ternha1 Air-Conditioners and Heat Pumps, 1993, Air-conditioning & Refrigeration Institute, /Canadian Standards Association, 4301 N. Fairfax Drive, Suite 425, Arlington, VA 22203, U.S.A./178 Rexdale Boulevard, Etobicoke, ntario, WW 1R3, cariada A1.6