NZQA expiring unit standard / 23089 version 3
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Title / Relight gas appliances safely after disruption of supply from a gas network
Level / 3 / Credits / 12
Purpose / This unit standard is for people working on gas networks. People credited with this unit standard are able to: explain legislative and industry requirements for the safe start up of gas appliances and safely relight gas appliances after disruption of gas supply.
Classification / Gas Industry > Gas Network Operations
Available grade / Achieved
Critical health and safety prerequisites / Unit 12510, Install and change domestic meters and regulators in a gas distribution network, and Unit 19550, Restore supply after interruption to domestic gas consumer in a gas distribution network; or demonstrate equivalent knowledge and skills.
1This unit standard is intended for, but is not limited to, workplace assessment.
2The current version of the following documents must be complied with:
Gas Act 1992;
Health and Safety in Employment Act 1992;
Gas (Safety and Measurement) Regulations 2010;
NZS 5261:2003 Gas installation, available at
Gas Disconnection and Reconnection Protocol GIP 001.
Company procedures means the documented methods for performing work activities and include health and safety, environmental, and quality management requirements. They may refer to manuals, codes of practice, or policy statements.
Gas appliances in this unit standard refer to appliances with a gas input below 250MJ/h.
Industry requirements refers to documented instructions (written, graphic) and may include any of the following: manufacturers’ instructions, design detail specifications; specifications from a specialist source such as an architect, designer, engineer or a supervisor; site or work specific requirements.
Outcomes and evidence requirements
Explain legislative and industry requirements for the safe start up of gas appliances after disruption of supply from a gas network.
1.1 Documentation relevant to the safe start up of gas appliances is identified.
Rangeevidence is required for a minimum of three documents.
1.2 Legislation relevant to the safe start up of gas appliances after disruption of supply from a gas network is identified.
Rangeevidence is required for a minimum of three pieces of legislation.
1.3 The purpose of the Gas (Safety and Measurement) Regulations 2010 and the Gas Disconnection and Reconnection Protocol GIP 001 are explained with reference to the safe start up of gas appliances after disruption of supply from a gas network.
1.4 Requirements to be met before re-supplying gas to a gas installation are explained in accordance with the Gas Regulations 2010.
Rangeevidence is required for three requirements.
1.5 Requirements for certification of gas appliance installations are explained in accordance with the legislation.
Rangeevidence is required for two requirements.
Safely relight gas appliances after disruption of gas supply.
2.1Tests are carried out safely and in accordance with industry requirements and codes of practice.
RangeInlet valve let-by test, installation drop test.
Evidence is required for a minimum of one set of tests.
2.2 Test data is recorded in accordance with company procedures.
2.3 Unsafe installations are identified and explained in accordance with NZS5261 requirements.
RangeEvidence is required for a minimum of one of each of: appliance condition, appliance location, proximity of combustible material, improper flame combustion.
2.4 Gas pipe work is purged safely and in accordance with industry requirements.
2.5 Gas appliance relighting is carried out safely and in accordance with NZ5261 requirements.
2.6 Documentation is completed in accordance with Gas Disconnection and Reconnection Protocol GIP 001 requirements.Replacement information / This unit standard and unit standard 19550 were replaced by unit standard 30383.
This unit standard is expiring. Assessment against the unit standard must take place by the last date for assessments set out below.
Status information and last date for assessment for superseded versionsProcess / Version / Date / Last Date for Assessment
Registration / 1 / 20 November 2006 / 31 December 2013
Review / 2 / 19 April 2012 / 31 December 2020
Review / 3 / 17 August 2017 / 31 December 2020
Consent and Moderation Requirements (CMR) reference / 0014
This CMR can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Providers must be granted consent to assess against standards (accredited) by NZQA, before they can report credits from assessment against unit standards or deliver courses of study leading to that assessment.
Industry Training Organisations must be granted consent to assess against standards by NZQA before they can register credits from assessment against unit standards.
Providers and Industry Training Organisations, which have been granted consent and which are assessing against unit standards must engage with the moderation system that applies to those standards.
Requirements for consent to assess and an outline of the moderation system that applies to this standard are outlined in the Consent and Moderation Requirements (CMR). The CMR also includes useful information about special requirements for organisations wishing to develop education and training programmes, such as minimum qualifications for tutors and assessors, and special resource requirements.MITO New Zealand Incorporated
SSB Code 101542 / New Zealand Qualifications Authority 2019