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AHRI 920

Performance Rating of DX-Dedicated Outdoor Air System Units

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Organization: AHRI
Publication Date: 1 January 2012
Status: inactive
Page Count: 15
scope:

This standard applies to factory-assembled commercial or industrial DX-Dedicated Outdoor Air System Units as defined in Section 3.

Applicability. ANSI/AHRI Standard 210/240, ANSI/AHRI Standard 340/360, and ANSI/AHRI/ASHRAE ISO Standard 13256-1 shall not apply to commercial or industrial equipment covered by this Standard.

Energy Source. This standard applies to electrically operated, vapor-compression refrigeration systems.

Installation. DX-Dedicated Outdoor Air System Units are intended for ducted or non-ducted installation with field or factory supplied grilles.

Purpose. The purpose of this standard is to establish for DX-Dedicated Outdoor Air System Units: definitions; classifications; test requirements; rating requirements; minimum data requirements for Published Ratings; operating requirements; 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.

Document History

AHRI 920 I-P
January 1, 2020
Performance Rating of Direct Expansion-Dedicated Outdoor Air System Units
This standard applies to factory-assembled commercial or industrial DX-DOAS Units as defined in Section 3. Energy Source. This standard only applies to electrically operated, vapor-compression...
920 I-P
January 1, 2015
Performance Rating of DX-Dedicated Outdoor Air System Units
This standard applies to factory-assembled commercial or industrial DX-Dedicated Outdoor Air System Units as defined in Section 3. Purpose. The purpose of this standard is to establish for...
AHRI 920
January 1, 2012
Performance Rating of DX-Dedicated Outdoor Air System Units
This standard applies to factory-assembled commercial or industrial DX-Dedicated Outdoor Air System Units as defined in Section 3. Applicability. ANSI/AHRI Standard 210/240, ANSI/AHRI Standard...

References

This document references:
AHRI 110 - Air-conditioning, Heating and Refrigerating Equipment Nameplate Voltages
Published by AHRI on January 1, 2016
This standard applies to 50 Hz and 60 Hz electrical voltage ratings and operating limits as applied to airconditioning, heating and refrigerating equipment, heat pumps, and electric furnaces as well...
This document references:
AHRI 210/240 - Performance Rating of Unitary Air-conditioning & Air-source Heat Pump Equipment
Published by AHRI on January 1, 2023
This standard applies to factory-made Unitary Air-conditioners and Unitary Air-source Heat Pumps with capacities less than 65,000 Btu/h as defined in Section 3. Energy Source. This standard applies...
This document references:
340/360 I-P - Performance Rating of Commercial and Industrial Unitary Air-conditioning and Heat Pump Equipment
Published by AHRI on January 1, 2022
This standard applies to factory-made Commercial and Industrial Unitary Air-conditioning and Heat Pump Equipment as defined in Section 3. Energy Source. This standard applies only to electrically...
This document references:
ASHRAE STD 13256-1 - Water-source heat pumps – Testing and rating for performance – Part 1: Water-to-air and brine-to-air heat pumps
Published by ASHRAE on March 20, 2002
This part of ISO 13256 establishes performance testing and rating criteria for factory-made residential, commercial and industrial, electrically-driven, mechanical-compression type, water-to-air and...
This document references:
ASHRAE STD 13256-2 - Water-source heat pumps – Testing and rating for performance – Part 2: Water-to-water and brine-to-water heat pumps
Published by ASHRAE on March 20, 2002
This part of ISO 13256 establishes performance testing and rating criteria for factory-made residential, commercial and industrial, electrically driven, mechanical-compression type, water-to-water...
This document references:
ASHRAE STD 198 - Method of Test for Rating DX-Dedicated Outdoor Air Systems for Moisture Removal Capacity and Moisture Removal Efficiency
Published by ASHRAE on January 26, 2013
This method of test applies to air-cooled,water-cooled, or water-source factory-assembled DX-DOAS products that condition 100% outdoor air and may include factory assembled preconditioning device(s)....
This document references:
ASHRAE STD 84 - Method of Testing Air-to-Air Heat/Energy Exchangers
Published by ASHRAE on January 1, 2020
This standard prescribes the laboratory methods for testing the performance of air-to-air heat and energy exchangers. In this standard, an air-to-air heat/energy exchanger is a device to transfer...
This document is referenced by:
ASHRAE 90563 - Advanced Energy Design Guide for Grocery Stores
Published by ASHRAE on January 1, 2015
This Guide is intended for grocery stores ranging in size from 25,000 to 65,000 ft2 with medium- and low-temperature refrigerated cases and walk-ins, but it also applies to smaller or larger stores...
This document is referenced by:
AHRI 1350 I-P - Mechanical Performance Rating of Central Station Air-handling Unit Casings
Published by AHRI on January 1, 2014
This standard applies to Central Station Air-handling Units (CSAHU) as defined in Section 3.5. 2.2 Exclusions. This standard does not apply to forced-circulation, free-delivery air-coolers for...
This document is referenced by:
AHRI 921 SI - Performance Rating of Direct Expansion-Dedicated Outdoor Air System Units
Published by AHRI on January 1, 2020
This standard applies to factory-assembled commercial or industrial DX-DOAS Units as defined in Section 3. Energy Source. This standard only applies to electrically operated, vapor-compression...
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