ASHRAE+62.1-2022+(1) - Page 081

Extracted Content

(This appendix is not part of this standard. It is merely informative and does not contain requirements necessary for conformance to the standard. It has not been processed according to the ANSI require- ments for a standard and may contain material that has not been subject to public review or a consen- sus process. Unresolved objectors on informative material are not offered the right to appeal at ASHRAE or ANSI.)

INFORMATIVE APPENDIX O CROSSWALK FOR REORGANIZED SECTION 5

ASHRAE Standard 62.1-2022 features a reorganized Section 5, “Systems and Equipment,” in which the order of equipment presented follows the path of air from the exterior of the building to air distribution in the space. Previously, additions to the standard were located at the end of the section, resulting in a somewhat randomly ordered list of system and equipment considerations. The new, more logical order should be helpful to new users. Table O-1 shows how the 2019 section numbers are numbered in the 2022 edition.

Table O-1 Crosswalk for Reorganized Section 5

2019 Edition Section Title

2022 Edition Section

5.1 Ventilation Air Distribution 5.10

5.1.1 Designing for Air Balancing 5.10.1

5.1.1.1 Designing for Varying Loads and Operating Conditions 5.10.1.1

5.1.2 Plenum Systems 5.10.2

5.1.3 Documentation 5.10.3

5.2 Exhaust Duct Location 5.14

5.2.1 5.14.1

5.2.2 5.14.2

5.3 Ventilation System Controls 5.18

5.4 Airstream Surfaces 5.11

5.4.1 Resistance to Mold Growth 5.11.1

5.4.2 Resistance to Erosion 5.11.2

5.5 Outdoor Air Intakes 5.4

5.5.1 Location 5.4.1

5.5.1.1 Exhaust/Relief Outlets 5.4.1.1

5.5.1.2 Fuel Burning Equipment 5.4.1.2

5.5.1.3 Roof, Landscaped Grade, or Another Surface Directly Below Intake 5.4.1.3

5.5.1.4 Laboratory Exhaust 5.4.1.4

5.5.2 Rain Entrainment 5.4.2

5.5.3 Rain Intrusion 5.4.3

5.5.4 Snow Entrainment 5.4.4

5.5.5 Bird Screens 5.4.5

5.6 Local Capture of Contaminant 5.16

5.7 Ozone Generating Devices 5.9

5.7.1 Air-Cleaning Devices 5.9.1

5.7.2 Ultraviolet Devices 5.9.2

5.8 Combustion Air 5.15

ANSI/ASHRAE Standard 62.1-2022 79