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FAQs - AS/NZS 5601.1:2022

AS/NZS 5601.1:2022 Gas installations Part 1: General installations was published on 30 September 2022 by Standards Australia.

ESV and the Victorian Building Authority (VBA) are providing a 6 month transition period for implementation of the standard.

Work completed prior to, or during this period, will be assessed against the old standard. However, gasfitters are encouraged to use the new standard prior to its commencement on 30 March 2023.

The following are frequently asked questions received by ESV relating to the publication of AS/NZS 5601.1:2022. Read the FAQs as a PDF.

Read more about the new 5601.1 requirements on our 5601.1 2022 webpage.  

Reference: AS/NZS 5601.1:2022 Clause 5.2.9.1

No. Replacing a gas turret in an existing science classroom will not trigger the new isolation requirements for installations in education institutions.

Where an education institution is renovating or upgrading the science classroom, this requirement will apply.

Reference: AS/NZS 5601.1:2022 Clause 5.2.9.2

No. Unless the fitting line has been increased in size due to an increase in gas loads or additional appliances are installed.

The like for like replacement of an appliance in a commercial kitchen will not require the retrofitting of a commercial kitchen isolation valve.

Reference: AS/NZS 5601.1:2022 Clause 5.2.11

Yes. For Class 1a buildings (houses), all modifications / alterations require fire emergency isolation to be installed as close as practicable to the outlet of the gas meter assembly. For all other classes of buildings, the requirement is triggered when the gas fitting line is upgraded due to an increase in gas load.

Reference: AS/NZS 5601.1:2022 Clause 5.2.11

Yes. All work completed from 30 March 2023 will require fire emergency isolation to be installed.

ESV strongly recommends fire emergency isolation be installed for any installation work being carried out during the transition period that contains multilayer pipe.

Reference: AS/NZS 5601.1:2022 Clause 5.2.11

Yes. It is important to note the requirement for fire emergency isolation valve types may differ depending on building class and pipe volume.

Reference: AS/NZS 5601.1:2022 Clause 5.2.11

No. If you only use copper pipe for the entire gas installation, the fire emergency isolation requirements will not be required. The new requirement is only applicable for installations containing multilayer piping.

Reference: AS/NZS 5601.1:2022 Clause 5.3.16

No. AS/NZS 5601.1: 2022 Clause 5.3.16 now prohibits the use of Multilayer pipe above ground, external to a building.

Reference: AS/NZS 5601.1:2022 Clause 6.9.4

Yes. Gas appliances in balconies are required to have the flue terminal extend beyond the covered area and discharge towards the open side.

Note: this does not apply to barbecues and radiant gas heaters designed for outdoor use. An eave is not considered a covered area unless it abuts an adjoining structure.

Reference: AS/NZS 5601.1:2022 Clause 6.10.1.1

No. The 650mm clearance from a gas cooker to a rangehood applies only to new kitchen installations or where a kitchen has been renovated with new cupboards. See Gas information sheet 25.

Reference: AS/NZS 5601.1:2022 Clause 6.10.1.1

Yes. If the installation was non-compliant, the installation must be made compliant with the clearance requirements at the time of the original installation.

Additionally, you must check the new gas cooker appliance installation instructions to establish the required clearance as it may be greater than 600mm.

Reference: AS/NZS 5601.1:2022 Clause 6.10.2.6

No. Freestanding commercial catering equipment with the inlet connection under the appliance can be installed using a hose assembly, provided the connection point from under the appliance is extended to a higher level (e.g. extended in copper) to allow the hose assembly to be installed in a U shape.

For further information, contact the Gas Technical Information Helpline on 1800 625 563 (option 3) or send an email to gastechnicalenquries@energysafe.vic.gov.au.

For more information about the new requirements of 5601.1 and commercial gas kitchen installations, watch our new Commercial Kitchens – Gas Installations video on our YouTube channel.

Read more about the new 5601.1 requirements on our 5601.1 2022 webpage.