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  1. Air
  2. Ventilation effectiveness

Ventilation effectiveness

Features/Air/Feature 03

Ventilation effectiveness

Intent: 

To ensure adequate ventilation and high indoor air quality.

Post Date: 30 Nov, 2018
Status: Approved

UK Building Regulations Part F has been accepted as an equivalent for ASHRAE 62.2-2013 of Feature 03, Part 4a for supply air ventilation requirements in the United Kingdom. Please note that the extraction rates for kitchen and toilet exhaust must still meet the ASHRAE 62.2-2013 requirements.
Post Date: 29 May, 2018
Status: Not Approved

A thermal comfort survey has not been accepted as an equivalent for the requirements of Feature 03 Part 3. Note that the intent of Feature 03 is to ensure adequate ventilation and high indoor air quality. Additionally, the reference standard for this feature is ASHRAE 62.1-2013: Ventilation for Acceptable Indoor Air Quality, not ASHRAE 55-2013.
Post Date: 29 May, 2018
Status: Not Approved

ASHRAE Standard 62.1-2007 has not been accepted as an equivalent for the requirements of Feature 03 Part 1 and 3. Note that the ventilation requirements for all space types are not equivalent between ASHRAE Standard 62.1 versions 2007 and 2013. Therefore, these reference standards cannot be considered equivalent for all projects.
Post Date: 11 May, 2018
Status: Not Approved

Singapore SS 553:2016 CP Standard has not been accepted as an equivalent for ASHRAE 62.1-2013 of Feature 03. SS 553 Table 1 does not address all applicable and expected space types within an office occupancy. Note also that all Equivalencies are precedent-setting meaning that review of potential equivalent standards or codes cannot be conducted on a project-specific basis. Equivalency proposals must address the variety of project and space types present in the original code or standard. Further, in some cases, the ventilation rates listed in SS 553 Table 1 appear to be less than the default ventilation rates listed in ASHRAE 62.1-2013 Table 6.2.2.1 for the same occupancy types.
Please note that it is acceptable for the project team to bring on another individual with experience using ASHRAE standards to verify design compliance and sign the LOA (e.g. as a peer review), if they wish and/or the engineer of record is unable to do so.
Post Date: 28 Mar, 2018
Status: Not Approved

Singapore SS 553 (2016) CP Standard has not been accepted as an equivalent for ASHRAE 62.1-2013 of Feature 03. Note the building/occupancy types indicated in the Outdoor Air Supply Requirements (Table 1) is not sufficient to cover all buildings and space types for all projects in Singapore.
Post Date: 05 Feb, 2018
Status: Approved

CIBSE Guide A has been accepted as an alternative for the requirements in ASHRAE 62.1 2013 for Feature 3 Part 1
Post Date: 20 Mar, 2017
Status: Approved

EN 13779, section A. 15. 2, Table A.10 may be used to comply with Feature 03, Part 2. Note, projects must adhere to Indoor Air Category IDA 1 or 2.
Post Date: 24 Oct, 2016
Status: Approved

CEN Standards EN 15251:2007 and EN 13779:2007 may be used in lieu of ASHRAE 62.1-2013 for Feature 03, Part 1.

The requirements of CEN Standard EN 15251-2007 must be met AND the performance requirements of CEN Standard EN 13779:2007 related to ventilation and room conditioning systems must be met (excluding section 7.3, Thermal Environment; section 7.6, Acoustic Environment; section A.16; and section A.17).

Projects must meet Category I or II as described in the standards.
Post Date: 24 Oct, 2016
Status: Approved

AS 1668.2 may be used in lieu of ASHRAE 62.1 for Feature 3, Part 1: Ventilation Design. Note that all projects that wish to comply with AS 1668.2 must assume a minimum density of 16 m² per person.