适用范围：This Standard applies to factory-manufactured residential,commercial, and industrial packaged terminal air-conditioners andheat pumps as defined in Clause 3. This Standard applies to electrically operatedvapour-compression refrigeration systems. Packaged terminal air-conditioners and heat pumps are intendedfor unducted installation, but may be employed with ductwork havingexternal static resistance up to 25 Pa (0.1 in H2O). This Standard does not apply to the following: a) heat-operated air-conditioning/heat pump equipment or roomair-conditioners/heat pumps, as defined in CAN/CSA-C368.1; b) water-to-air and brine-to-air heat pumps, as defined inCAN/CSA-C13256-1 and ISO 13256-1; c) unitary air-conditioners and air-source unitary heat pumps,as defined in CAN/CSA-C656 and ANSI/AHRI 210/240, with capacitiesless than 19 000 W (65 000 Btu/h); d) commercial and industrial unitary air-conditioners and heatpumps, as defined in CAN/CSA-C746 and ANSI/AHRI 340/360, withcapacities of 19 000 W (65 000 Btu/h) or greater; e) commercial and industrial single package verticalair-conditioners and heat pumps, as defined in ANSI/AHRI 390, withcapacities of 39 300 W (134 000 Btu/h) or less; and f) units withintegral gas-fired heating. In this Standard, "shall" is used to express a requirement,i.e., a provision that the user is obliged to satisfy in order tocomply with the standard; "should" is used to express arecommendation or that which is advised but not required; and "may"is used to express an option or that which is permissible withinthe limits of the standard. Notes accompanying clauses do not include requirements oralternative requirements; the purpose of a note accompanying aclause is to separate from the text explanatory or informativematerial. Notes to tables and figures are considered part of the table orfigure and may be written as requirements. Annexes are designated normative (mandatory) or informative(non-mandatory) to define their application.  The values given in SI units are the units of record for thepurposes of this Standard. The values given in parentheses are forinformation and comparison only.

适用范围：This standard applies to the outdoor sections of factory-made air-conditioning and heat pump equipment as defined in ANSI/AHRI Standard 210/240, ANSI/AHRI Standard 340/360 (cooling capacity ratings of equal to or less than 40.0 kW), ANSI/AHRI Standard 1230, ANSI/AHRI Standard 1160 (I-P), and ANSI/AHRI Standard 1161 (SI). Products covered include: Air-source Unitary Heat Pumps, Heat Pump Pool Heaters, Unitary Air-conditioners and Variable Refrigerant Flow (VRF) Systems. Purpose. The purpose of this standard is to establish for outdoor unitary equipment: definitions; test requirements; rating requirements; minimum data requirements for Published Ratings; marking and nameplate data; and conformance conditions.  Intent. This standard is intended for the guidance of the industry, including manufacturers, engineers, installers, contractors and users. Review and Amendment. This standard is subject to review and amendment as technology advances

适用范围：This standard applies to Ducted Equipment and specifies themethods for the determination of the sound power rating of theindoor sections of factory-made residential, commercial andindustrial air-conditioning and heat pump equipment, which areelectrically driven, with mechanical compression and containingfans, using mapped sound data for rating the various product SoundComponents. Sound power ratings reported are octaveband Sound PowerLevels from 63 Hz to 8000 Hz. The terms Air-Conditioner andequipment are used to mean Air- Conditioners and Heat Pumps in thispart of the standard. In addition to the stated octave bandratings, this standard can additionally be used to provideone-third octave band sound ratings from 50 to 10,000 Hz. Purpose The purpose of this standard is to establish a method of soundrating the indoor portions of ducted air moving and conditioningequipment. The standard provides definitions; requirements foracquiring mapped sound data; sound power level calculations andratings; minimum data requirements for published sound ratings; andconformance conditions. Intent. This standard is intended for the guidance ofthe industry, including manufacturers, engineers, installers,contractors and users. Review and Amendment. This standard is subject toreview and amendment as technology advances.

适用范围：This standard applies to all Reference Sound Sources used inconjunction with AHRI sound rating standards and covers theone-third octave band frequency range from 50 to 10,000 Hz. Thisstandard also includes calibration over a limited frequency range.Multiple Reference Sound Sources may be used to cover the entirefrequency range from 50 to 10,000 Hz. Purpose. The purpose of this standard is to establishthe performance characteristics of a Reference Sound Source, definethe acoustical calibration procedures, and define the method fortransfer of calibration from a Primary to a Secondary ReferenceSound Source. Intent. This standard is intended for the guidance ofthe industry, including manufacturers, engineers, installers,contractors and users.  Review and Amendment. This standard is subject toreview and amendment as technology advances.

适用范围：This standard applies to HVAC products where sound power isdetermined by measurement using the Comparison Method in areverberation room that meets the qualification requirements asdefined in Section 4 of this standard. Purpose. The purpose of this standard is to provide themethodology for the determination of Sound Power Levels of noisesources that emit Broadband Sound and/or Discrete FrequencySounds/Tones in reverberation rooms. The method described hereinrequires reverberation room pre-qualification through test and theuse of the Comparison Method to determine Sound Power Levels. Thisstandard specifies the physical environment, procedures, andequipment used to qualify the reverberation room by test.Pre-qualifying the room ensures adequate modal density with the useof one source locations to obtain acceptable accuracy andrepeatability of results. The Reference Sound Source (RSS) used forthe Comparison Method relies on ANSI/AHRI Standard 250 toaccurately calibrate the RSS at all frequencies of interest. Soundrating values are often useful for applications and design,therefore it is important to acquire data and qualify measurementrooms in Onethird Octave Bands. The use of the Comparison Methodreduces a number of potential sources of error. The standardcontains information on instrumentation, installation and operationof the source, procedures for determining the number of microphonepositions or length of traverse, and procedures for the calculationof Sound Power Level. Measurements made in conformity with thisstandard will, with very few exceptions, result in standarddeviations equal to or less than specified in Table 1. The frequencies covered in this standard range from the 50 Hz tothe 10,000 Hz One-third Octave Band (63 Hz to 8000 Hz OctaveBands). The 50 to 80 Hz one-third octave band sound for HVACequipment affects product applications and often cannot be ignored.The product specific AHRI standard will specify the frequency rangeof interest for qualification, calculation, and reporting. Thisstandard is based on ANSI S12.51/ISO 3741 but provides additionalexceptions and extensions. Intent. This standard is intended for the guidance ofthe industry, including manufacturers, engineers, installers,contractors and users. Review and Amendment. This standard is subject toreview and amendment as technology advances.

适用范围：Scope. This standard applies to Zone Dampers as defined in Section 3. This standard defines the performance of Zone Dampers in the following aspects: Pressure Drop, Airflow Leakage, Airflow Rate, and Operational Torque, which will provide both the specifier and user the data required to evaluate and compare Zone Dampers. Exclusions. This standard does not include or pertain to dampers that are fire and/or smoke rated. Purpose. The purpose of this standard is to establish for Zone Dampers: definitions; classifications; test requirements for performance ratings; rating requirements; minimum data requirements for Published Ratings; product marking and labeling; and conformance conditions. Intent. This standard is intended for the guidance of the industry, including manufacturers, designers, installers, contractors, and users. Review and Amendment. This standard is subject to review and amendment as technology advances.

适用范围：This standard applies to the following Equipment: Fan CoilUnits, Unit Ventilators, Air Handling Units, Coils, Air-to-Air HeatExchangers, Vertical Packaged Air Conditioners and Heat Pumps,Packaged Terminal Equipment, Dehumidifiers, Flow and ContaminantControls, Furnaces, Humidifiers, Liquid Chillers, Thermal StorageEquipment, Unitary Air Conditioners and Heat Pumps (includingDuctless Equipment), and Water-Source Heat Pumps. This standarddoes not apply to any other products. This standard describes themethods for equipment qualification and the process to determineequipment Seismic Capacity. The applicability of this standard to equipment not specificallylisted in the scope has not been considered. Purpose. The purpose of this standard is to define therequirements for seismic qualification of mechanical HVACREquipment. The 2012 International Building Code® (IBC) includes anumber of provisions for seismic design and certification ofnonstructural components. These provisions are intended to improvethe performance of non-essential and essential nonstructuralsystems subject to strong ground shaking. Both the IBC and theAmerican Society of Civil Engineers Standard SEI/ASCE 7 (ASCE 7)contain requirements for qualification of Equipment.

适用范围：Scope. This Standard specifies requirements for performance rating of portable flue combustion analyzers measuring specific combustion flue gas products of heating appliances for residential and light commercial applications using fuels including at minimum natural gas, propane, light and heavy fuel oil. Exclusion. This Standard is not intended for performance rating of portable analyzers monitoring ambient Carbon Monoxide (CO) or ambient Carbon Dioxide (CO2), or for use as an environmental emissions compliance tool. Purpose. The purpose of this standard is to establish for Portable Flue Gas Combustion Analyzers; definitions; test requirements; minimum performance requirements; nomenclature; minimum data requirements for Published Ratings; marking and nameplate data; and conformance conditions. Intent. This standard is intended for the guidance of the industry, including manufacturers, engineers, installers, contractors and users. Review and Amendment. This standard is subject to review and amendment as technology advances.

适用范围：This standard applies, within the heating, ventilating,air-conditioning and refrigeration (HVACR) context, to VFDs used inthe control of asynchronous induction motors. The range includesall those found within a building including: low voltage (≤ 600 V)and drives that are stand alone, not mechanically integrated intomotors. Purpose. The purpose of this standard is to establishfor Variable Frequency Drives (VFDs): definitions; classifications;general test requirements; rating requirements; minimum datarequirements for Published Ratings; marking and nameplate data; andconformance conditions. Intent. This standard is intended for the guidance ofthe industry, including manufacturers, engineers, installers,contractors and users. Review and Amendment. This standard is subject toreview and amendment as technology advances.

适用范围：This standard applies to the following manufacturers' standardcatalog Commercial Refrigerated Display Merchandisers and StorageCabinets, provided that the cases are equipped and designed to workwith electrically driven, direct expansion type systems: Self-contained and Remote Commercial Refrigerated DisplayMerchandisers and Storage Cabinets Open and Closed Commercial Refrigerated DisplayMerchandisers Purpose. The purpose of this standard is to establishfor Commercial Refrigerated Display Merchandisers and StorageCabinets: definitions; test requirements; rating requirements;symbols and subscripts; minimum data requirements for PublishedRatings; marking and nameplate data and conformance conditions. Intent. This standard is intended for the guidance ofthe industry, including manufacturers, engineers, installers,contractors and users. The values reported using this standardallow comparison of energy consumption within each of the followingproduct categories: Remote Commercial Refrigerated DisplayMerchandisers, Remote Commercial Refrigerated Storage Cabinets,Self-contained Commercial Refrigerated Display Merchandisers andSelf-contained Commercial Refrigerated Storage Cabinets.  Review and Amendment. This standard is subject toreview and amendment as technology advances.

适用范围：There is no abstract currently available for this document

适用范围：This standard applies to encased direct expansion vaporcompression type Mechanical Transport Refrigeration Units with thefollowing components: Compressor Air-cooled condenser Refrigerant flow control(s) Forced-Circulation Air-Cooler Base or frame Prime Mover as described in the unit manufacturer'sliterature Power Train (coupling, power take-off, transmission, V-beltdrive, etc.) connecting the unit to the Prime Mover Purpose. The purpose of this standard is to establishfor Mechanical Transport Refrigeration Units: definitions; testrequirements; rating requirements; minimum data requirements forPublished Ratings; operating requirements; marking and nameplatedata; and conformance conditions. Intent. This standard is intended for the guidance ofthe industry, including manufacturers, engineers, installers,contractors and users. Review and Amendment. This standard is subject toreview and amendment as technology advances.

适用范围：There is no abstract currently available for this document

适用范围：This standard applies to factory-made Air-to-Air Exchangers foruse in Air-to-Air Energy Recovery Ventilation Equipment as definedin Section 3. Exclusions. This standard does not apply to the ratingand testing of heat exchangers joined by circulated heat transfermedium (run-around loop). A run-around loop employsliquid-containing coils connected in a closed loop and placed ineach of two or more airstreams. Purpose Purpose. The purpose of this standard is to establishfor Air-to-Air Heat Exchangers intended for use in Air-to-AirEnergy Recovery Ventilation Equipment: definitions; testrequirements; rating requirements; minimum data requirements forPublished Ratings; marking and nameplate data; and conformanceconditions. Intent. This standard is intended for the guidance ofthe industry, including manufacturers, designers, installers,contractors and users. Review and Amendment. This standard is subject toreview and amendment as technology advances.

适用范围：There is no abstract currently available for this document

适用范围：There is no abstract currently available for this document