Type B Gasfitting (VIC) flashcards
Type B Gasfitting (VIC) · Build recall with a focused review session.
31 cards. Read the term and the definition here. The deck at the top of this page is optional.
- Type B appliance definition
- A gas appliance with gas consumption above 10 MJ/h that is not a Type A appliance. Type A appliances are mass-produced and certified to a standard; Type B appliances are assessed individually.
- Type A versus Type B
- Type A appliances are certified production appliances installed to manufacturer instructions. Type B appliances are larger or non-certified appliances requiring individual assessment of combustion, ventilation, and flueing.
- Commissioning combustion analysis
- Measuring carbon monoxide and carbon dioxide in the flue gases and comparing the ratio against the appliance specification. Excessive CO indicates incomplete combustion from incorrect gas pressure, air, or injector sizing.
- Appliance inlet pressure test
- A pressure reading taken at the appliance test point with the appliance operating at full rate. The reading must fall within the range on the data plate or in the manufacturer specification.
- Over-pressure shut-off device
- A device that stops gas flow when supply pressure exceeds a set limit, protecting the appliance and its controls. It is required where supply pressure could exceed the appliance maximum rating.
- Flue terminal clearance
- The minimum distance between a flue terminal and windows, doors, air intakes, and boundaries, taken from the installation standard's clearance table. Measured clearances govern acceptance.
- Ventilation opening sizing
- Ventilation for a Type B appliance is sized from the appliance's rated gas consumption and the installation category, not from the total connected load of the building.
- Spillage test for flued appliance
- A check that combustion products do not spill from an open-flued appliance under normal operation. Spillage indicates inadequate draught, blockage, or insufficient combustion air.
- Gas pipework pressure test
- Testing new pipework with air or inert gas at the specified pressure for the specified duration before gas is admitted. The result is recorded and the test medium released safely.
- Gas conversion of appliance
- Changing an appliance from one gas family to another by fitting the manufacturer's conversion kit, adjusting injectors and governor, then re-commissioning with a new combustion analysis.
- Draught diverter function
- A device that stabilises flue draught and prevents down-draught from affecting combustion. It must be correctly positioned and free of obstruction for the appliance to operate safely.
- Combustion air requirement
- The air needed for complete combustion of the appliance's rated gas input plus any dilution air required by the flue category. Insufficient air produces carbon monoxide.
- Gas rate verification
- Checking the appliance's actual gas consumption against its rated input by meter reading over a timed interval, adjusted for gas temperature and pressure correction factors.
- Unsafe installation isolation
- When an unsafe condition is found, gas supply to the appliance is isolated, the consumer is informed, and the defect is reported as required by the Victorian gas safety framework.
- Flue category determination
- The flue category depends on whether the appliance draws combustion air from the room or outdoors and whether it is natural draught or fan assisted. Category determines ventilation and flue design.
- Gas Safety Act 1997
- Victorian legislation establishing gas safety duties, licensing, and enforcement. Energy Safe Victoria administers the Act and the associated gas installation regulations.
- Energy Safe Victoria role
- The Victorian regulator for gas and electrical safety. It issues gasfitting licences, administers compliance and enforcement, and publishes technical guidance and safety alerts.
- Gasfitting licence classes
- Victorian gasfitting licences are classed by the type of work authorised. Type B work requires the specific class or endorsement covering appliances above 10 MJ/h input.
- Supervision requirement
- Unlicensed workers may perform gasfitting only under supervision of a licensed gasfitter of the relevant class. The supervisor remains responsible for the work and its compliance.
- Certificate of Compliance gas
- A certificate issued on completion of gasfitting work, identifying the work, the standard applied, and the licence holder. A copy is given to the consumer.
- Notifiable work categories
- Prescribed categories of gasfitting work that must be reported to Energy Safe Victoria. The current category list is checked before work starts because scope changes between editions.
- Licence renewal and CPD
- A Victorian gasfitting licence is time-limited and renewed on conditions including continuing professional development. Working on a lapsed licence is an offence even if competent.
- Gas distributor versus regulator
- The distributor owns and operates the gas network and responds to supply faults. The regulator, Energy Safe Victoria, administers licensing and compliance. Their roles are not interchangeable.
- Australian Standard reference
- Gas installations in Victoria are installed to AS/NZS 5601 and appliance-specific standards. Departure from a standard requires documented justification accepted by the regulator.
- Defect reporting duty
- A gasfitter who finds an unsafe installation must make it safe and report it. The duty extends to any gasfitter who subsequently encounters the defect.
- Consumer information duty
- The installer must leave the consumer with operating instructions, the compliance certificate, and information about maintenance requirements for the installed appliance.
- Public liability insurance
- Gasfitting contractors hold public liability cover as a business obligation. Insurance does not substitute for licensing or compliance with the installation standard.
- Records retention
- Copies of compliance certificates, test results, and commissioning data are retained for the period required by the regulator, and produced on request during an audit.
- Advertising licence number
- Victorian licensed gasfitters must display their licence number on advertising and business documents, allowing consumers to verify the licence with Energy Safe Victoria.
- Restricted versus full licence
- Restricted licences authorise a limited scope of gasfitting, such as specific appliance types. Work outside that scope requires a full or appropriately endorsed licence.
- Regulator audit powers
- Energy Safe Victoria may inspect installations, audit certificates, and require rectification of non-compliant work. Failure to comply can result in licence suspension or prosecution.