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1、2004STANDARD forPERFORMANCE RATING OFCOMMERCIALANDINDUSTRIALUNITARY AIR-CONDITIONINGStandard 340/360AND HEAT PUMP EQUIPMENTIMPORTANTSAFETY DISCLAIMERARI does not set safety standards and does not certify or guarantee the safety of any products, components or systems designed, tested, rated, installe
2、d or operated in accordance with this standard/guideline. It is strongly recommended that products be designed, constructed, assembled, installed and operated in accordance with nationally recognized safety standards and code requirements appropriate for products covered by this standard/guideline.A
3、RI uses its best efforts to develop standards/guidelines employing state-of-the-art and accepted industry practices. ARI does not certify or guarantee that any test conducted under its standards/guidelines will be non-hazardous or free from risk.ARI CERTIFICATION PROGRAM PROVISIONSScope of the Certi
4、fication ProgramThe Certification Program includes all air-cooled, water-cooled and evaporatively-cooled unitary air-conditioning, air-source unitary heat pump equipment, and air-conditioning condensing units rated at or above 65,000 Btu/h 19,000 W at ARI Standard Rating Conditions (Cooling) but bel
5、ow 250,000 Btu/h 73,200 W at ARI Standard Rating Conditions (Cooling).Certified RatingsThe following Certification Program ratings are verified by test:Unitary Air-Conditioners and Air-Conditioning Condensing UnitsAir-cooled, water-cooled and evaporatively-cooled from 65,000 Btu/h 19,000 W to below
6、250,000 Btu/h 73,200 W.1. ARI Standard Rating Cooling Capacity, Btu/h2. Energy Efficiency Ratio, EER, Btu/Wh3. Integrated Part-Load Value, IPLVAir-Source Unitary Heat Pump Equipment Air-cooled from 65,000 Btu/h 19,000 W to below 250,000 Btu/h 73,200 W.1. ARI Standard Rating Cooling Capacity, Btu/h2.
7、 Energy Efficiency Ratio, EER, Btu/Wh3. High Temperature Heating Standard Rating Capacity, Btu/h4. High Temperature Coefficient of Performance (COP 47EF)5. Low Temperature Heating Standard Rating Capacity, Btu/h6. Low Temperature Coefficient of Performance (COP 17EF) 7. Integrated Part-Load Value, I
8、PLVConformance to the requirements of the Maximum Operating Condition Test, Cooling Low Temperature Operation Test, Insulation Efficiency Test (Cooling), and Condensate Disposal Test (Cooling) are also verified by test.Note:This standard supersedes ARI Standard 340/360-2000.TABLE OF CONTENTSSECTIONP
9、AGESection 1.Purpose1Section 2.Scope1Section 3.Definitions1Section 4.Classifications2Section 5.Test Requirements2Section 6.Rating Requirements2 Section 7.Minimum Data Requirements for Published Ratings10Section 8.Operating Requirements10Section 9.Marking and Nameplate Data12Section 10.Conformance Co
10、nditions12TABLESTable 1.Classification of Commercial and Industrial Unitary Air-ConditioningEquipment4Table 2.Classification of Commercial and Industrial Unitary Heat Pump Equipment5Table 3.Conditions for Standard Rating and Operating Tests6Table 4.Minimum External Pressure7FIGURESFigure 1.Part-Load
11、 Factor Curve9APPENDICESAppendix A.References - Normative13Appendix B.References - Informative13Appendix C.Capacity Calculation For Unitary Equipment Using an Outdoor Air Cooling Coil Normative 14Appendix D.Method and Example of Calculating Integrated Part-LoadValues (IPLV) - Normative16TABLES FOR A
12、PPENDICESTable D1.Example IPLV Calculation (I-P Units)18FIGURES FOR APPENDICESFigure C1.Test Set-Up for Units Using an Outdoor Coil15Figure D1.Part-Load Factor Example17PERFORMANCE RATING OF COMMERCIAL AND INDUSTRIAL UNITARY AIR-CONDITIONING AND HEAT PUMP EQUIPMENTSection 1. Purpose1.1Purpose. The p
13、urpose of this standard is to establish for Commercial and Industrial Unitary Air-Conditioning and Heat Pump Equipment: definitions; classifications; test requirements; rating requirements; minimum data requirements for Published Ratings; operating requirements; marking and nameplate data; and confo
14、rmance conditions. 1.1.1Intent. This standard is intended for the guidance of the industry, including manufacturers, engineers, installers, contractors and users.1.1.2Review and Amendment. This standard is subject to review and amendment as technology advances.Section 2. Scope2.1Scope. This standard
15、 applies to factory-made Commercial and Industrial Unitary Air-Conditioning and Heat Pump Equipment as defined in Section 3.2.1.1Energy Source. This standard applies only to electrically operated, vapor compression refrigeration systems.2.2Exclusions. This standard does not apply to the following:2.
16、2.1Rating and testing of individual assemblies, such as condensing units or coils, for separate use.2.2.2Unitary Air-Conditioners as defined in ARI Standard 210/240, Unitary Air-Conditioning and Air-Source Heat Pump Equipment, with capacities less than 65,000 Btu/h 19 000 W, or to Unitary Heat Opera
17、ted Air-Conditioning Equipment, or Water-Source Heat Pumps as defined in ISO 13256-1, Water-Source Heat Pumps Testing and Rating for Performance Part I: Water-to-Air and Brine-to-Air Heat Pumps.2.2.3Rating of units equipped with desuperheater/water heating devices (as defined in ANSI/ASHRAE Standard
18、 137) in operation.Section 3. DefinitionsAll terms in this document shall follow the standard industry definitions in the current edition of ASHRAE Terminology of Heating, Ventilation Air-Conditioning and Refrigeration, unless otherwise defined in this section.3.1Coefficient of Performance. A ratio
19、of the cooling/heating capacity in watts W to the power input values in watts W at any given set of rating conditions expressed in watts/watts W/W. For heating COP, supplementary resistance heat shall be excluded.3.1.1Standard Coefficient of Performance. A ratio of the capacity to power input value
20、obtained at Standard Rating Conditions.3.2Commercial and Industrial Unitary Air-Conditioner. One or more factory-made assemblies, which includes a cooling coil, an air moving device, a compressor(s) and condenser combination, and may include a heating function as well. Where such equipment is provid
21、ed in more than one assembly, the separate assemblies shall be designed to be used together, and the requirements of rating outlined in this standard shall be based upon the use of matched assemblies.3.2.1Functions. The functions of Commercial and Industrial Unitary Air-Conditioners, either alone or
22、 in combination with a heating plant, are to provide air-circulation, cooling, dehumidification, and may include the functions of heating, humidifying, outdoor air ventilation, and air cleaning.3.3Commercial and Industrial Unitary Heat Pump. One or more factory-made assemblies, which normally includ
23、e an indoor conditioning coil, an air moving device, compressor(s), and an outdoor coil(s), including means to provide a heating function and may or may not include a cooling function. When such equipment is provided in more than one assembly, the separate assemblies shall be designed to be used tog
24、ether, and the requirements of rating outlined in the standard shall be based upon the use of matched assemblies.3.3.1Functions. Commercial and Industrial Unitary Heat Pumps shall provide the function of heating, air circulation and may include the function of air cooling, dehumidifying or humidifyi
25、ng, outdoor air ventilation, and air cleaning.3.4Cooling Capacity. The capacity associated with the change in air enthalpy which includes both the Latent and Sensible Capacities expressed Btu/h W.3.4.1Latent Capacity. Capacity associated witha change in humidity ratio.3.4.2Sensible Capacity. Capacit
26、y associated with a change in dry-bulb temperature.3.5Energy Efficiency Ratio (EER). A ratio of the Cooling Capacity in Btu/h to the power input values in watts at any given set of rating conditions expressed in Btu/Wh.3.6Integrated Part-Load Value (IPLV). A single number cooling part-load efficienc
27、y figure of merit calculated per the method described in 6.2.2.3.7Published 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 application. These values apply to all units of like nominal size and
28、type (identification) produced by the same manufacturer. The term Published Rating includes the rating of all performance characteristics shown on the air-conditioner or heat pump or published in specifications, advertising, or other literature controlled by the manufacturer, at stated Rating Condit
29、ions.3.7.1Application Rating. A rating based on tests performed at application Rating Conditions (other than Standard Rating Conditions).3.7.2Standard Rating. A rating based on tests performed at Standard Rating Conditions.3.8Rating Conditions. Any set of operating conditions under which a single le
30、vel of performance results and which causes only that level of performance to occur.3.8.1Standard Rating Conditions. Rating conditions used as the basis of comparison for performance characteristics.3.9Shall or Should. Shall or should shall be interpreted as follows:3.9.1Shall. Where shall or shall
31、not is used for a provision specified, that provision is mandatory if compliance with the standard is claimed.3.9.2Should. “Should” is used to indicate provisions which are not mandatory but which are desirable as good practice.3.10Standard Air. Air weighing 0.075 lb/ft3 1.2 kg/m3 which approximates
32、 dry air at 70F 21C and at a barometric pressure of 29.92 in Hg 101.1 kPa.Section 4. ClassificationsCommercial and Industrial Unitary Air-Conditioning and Heat Pumps Equipment within the scope of this standard shall be classified as shown in Tables 1 and 2.Section 5. Test Requirements5.1All standard
33、 ratings shall be verified by tests conducted in accordance with ASHRAE Standard 37 and with the test methods and procedures as described in this standard and its appendices.Section 6. Rating Requirements6.1Standard Ratings. Standard Ratings shall be established at the Standard Rating Conditions spe
34、cified in Table 3. Standard Ratings related to cooling or heating capacities shall be net values, including the effects of circulating fan heat, but not including supplementary heat. Standard Ratings (Cooling) shall be stated as total Cooling Capacity. Standard Ratings shall be based on the total po
35、wer input to the compressor(s) and fan(s), plus controls and other items required as part of the system for standard rating operation.Standard Ratings of units which do not have indoor air-circulating fans furnished as part of the model, i.e., split systems with indoor coil alone, shall be establish
36、ed by subtracting 1250 Btu/h per 1000 cfm 775 W/m3/s from the total cooling capacity, and by adding the same amount to the heating capacity. Total power input for both heating and cooling shall be increased by 365 W per 1000 cfm 226 W/m3/s of indoor air circulated.Standard Ratings of water-cooled un
37、its from 65,000 to below 135,000 Btu/h 19,000 to 39,600 W shall include a total allowance for cooling tower fan motor and circulating water pump motor power inputs to be added in the amount of 10.0 W per 1000 Btu/h 34.1 W per 1000 W cooling capacity.6.1.1Values of Standard Capacity Ratings. These ra
38、tings shall be expressed in terms of Btu/hW as shown.Capacity Ratings, Btu/h WMultiples, Btu/h W65,000 up to 135,00019,000 up to 39,6001000 300136,000 up to 400,00039,800 up to 117,0002000 600above 400,000above 117,0005000 1,5006.1.2Values of Energy Efficiency Ratios and Coefficients of Performance.
39、 Energy Efficiency Ratios (EER) and Integrated Part-Load Values (IPLV) for cooling, whenever published, shall be expressed in multiples of the nearest 0.1. Coefficients of Performance (COP) for heating or cooling, whenever published, shall be expressed in multiples of the nearest 0.1.6.1.3 Standard
40、Rating Tests. Table 3 indicates the tests and test conditions which are required to determine values of standard capacity ratings and values of energy efficiency. Standard cooling ratings are not applicable for heating-only heat pumps.6.1.3.1Voltage and Frequency. Standard Rating tests shall be perf
41、ormed at the nameplate rated voltage(s) and frequency.For air-conditioners and heat pumps with dual nameplate voltage ratings, Standard Rating tests shall be performed at both voltages, or at the lower of the two voltages, if only a single Standard Rating is to be published.6.1.3.2Indoor-Coil Airflo
42、w Rate. All Standard Ratings shall be determined at an indoor-coil airflow rate as outlined below. All airflow rates shall be expressed in terms of Standard Air.a. Equipment with indoor fans intended for use with field installed duct systems shall be rated at the indoor-coil airflow rate (not to exc
43、eed 37.5 SCFM per 1000 Btu/h 0.06 m3/s per 1000 W of rated capacity) delivered when operating against the minimum external resistance specified in Table 4 or at a lower indoor-coil airflow rate if so specified by the manufacturer.b.Equipment with indoor fans not intended for use with field installed
44、 duct systems (free discharge) shall be rated at the indoor-side air quantity delivered when operating at 0 in H2O 0 Pa external pressure as specified by the manufacturer.c.100% recirculated air shall be used except when the rating with outside air is claimed (6.1.3.6). For units equipped for multi-
45、zone or dual duct operation, the hot deck shall be closed off using dampers supplied with the unit.d.Equipment which does not incorporate an indoor fan, but is rated in combination with a device employing a fan shall be rated as described under 6.1.3.2a. For equipment of this class which is rated fo
46、r general use to be applied to a variety of heating units, the indoor-coil airflow rate shall be the lesser of: (1) the manufacturer specified Standard Ratings, not to exceed 37.5 SCFM/1000 Btu/h 0.06 m3/s per 1000 W of rated capacity or (2) the airflow rate obtained through the indoor coil assembly
47、 when the pressure drop across the indoor coil assembly and the recommended enclosures and attachment means is not greater than 0.30 in H2O 75 Pa.e.Indoor-coil airflow rates and pressures as referred to herein apply to the airflow rate experienced when the unit is cooling and dehumidifying under the conditions specified in this section. This airflow rate, except as noted in 6.1.3.2b and 8.3, shall be empl