This unit would be applied by draftspersons operating within the air conditioning industry. Application of this unit includes identifying suitable methods of joining and supporting duct and pipes for copper, mild steel, stainless steel and plastic; identifying the correct methods for joining and cutting in plans; and correctly aligning the methods with material types.
Work is conducted to meet predetermined project specifications and requires access to and interpretation of organisational and industry catalogues and product specifications.
Drawings/models will usually be carried out with the use of computer-aided design (CAD) systems but may also be done manually. Drawings are produced to Australian Standard (AS) 1100.101–1992 Technical drawing – General principles, from predetermined critical dimensions and specifications. If CAD systems are to be used, the unit MEM30031A Operate computer-aided design (CAD) system to produce basic drawing elements, should also be selected.
Interpret technical drawing |
1 | Access and interpret specifications | 1.1 | Interpret project specifications and requirements for pipework, including layout, sizing and type of pipe and duct required |
1.2 | Determine implications and requirements for pipe fabrication and support | ||
1.3 | Access and interpret organisational and industry standards, information and catalogues to obtain required product specifications |
2 | Document pipe fabrication | 2.1 | Select methods of joining and cutting pipe that are appropriate for the materials being used |
2.2 | Document pipe fabrication requirements on plans | ||
2.3 | Include instructions for electrolysis of dissimilar materials on plans where required |
3 | Document support for pipework | 3.1 | Select methods for supporting pipework that are appropriate for the materials being used |
3.2 | Document pipe support requirements on plans | ||
3.3 | Include instructions for electrolysis of dissimilar materials on plans where required |
4 | Document duct fabrication | 4.1 | Select methods of joining and cutting duct that are appropriate for the materials being used |
4.2 | Document duct fabrication requirements on plans | ||
4.3 | Include instructions for electrolysis of dissimilar materials on plans where required |
5 | Document duct support | 5.1 | Select methods for supporting duct work that are appropriate to the materials being used |
5.2 | Document duct support requirements on plans | ||
5.3 | Include instructions for electrolysis of dissimilar materials on plans where required |
6 | Complete and store drawings | 6.1 | Complete drawings and associated technical information in accordance with project requirements and company procedures |
6.2 | Process drawings and associated documentation for approval in accordance with organisational requirements | ||
6.3 | Store drawings and associated documentation in accordance with organisational procedures |
Required skills |
Required skills include: literacy skills sufficient to read and interpret instructions, relevant codes of practice and specifications for drawing work using computer technologies and navigating software numeracy skills sufficient to interpret technical information and conduct mathematical problem solving as required in the scope of this unit using and maintaining drawing equipment applying spatial principles to achieve scale and proportion interpersonal skills to consult with other disciplines selecting methods of joining, cutting and supporting pipe appropriate to work requirements selecting methods of joining, cutting and supporting duct appropriate to work requirements completing sketches and drawings with required information for fabrication presenting drawings and documentation according to industry standard |
Required knowledge |
Required knowledge includes: relevant codes of practice industry standards occupational health and safety (OHS) requirements duct construction types of duct: supply air (S/A) return air (R/A) toilet exhaust kitchen exhaust smoke spill fire rated textile duct sub-ducts filter plenums types of duct insulation (materials and facings): foil face perf face black matt melinex lining galvabond polyester fibreglass jointing flanges seams pipe construction: materials copper steel Acrylonitrile – Butadiene – Styrene (ABS) polyvinyl chloride (PVC) stainless steel pipework insulation: fibreglass polystyrene facings nitrile rubber methods for supporting: clamping hanging fixings sketching pipe and duct fabrication joining methods for pipe and duct work (steel, copper, stainless steel, aluminium and plastic) brackets and supports |
The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria required skills and knowledge range statement and the Assessment Guidelines for the Training Package. | |
Overview of assessment | A person who demonstrates competency in this unit must be able to interpret specifications to select appropriate methods of pipe and duct fabrication for a range of materials. |
Critical aspects for assessment and evidence required to demonstrate competency in this unit | Assessors must be satisfied that the candidate can competently and consistently perform all elements of the unit as specified by the criteria, including required knowledge, and be capable of applying the competency in new and different situations and contexts. Specifically the candidate must be able to: work within typical site/teamwork structures and methods apply worksite communication procedures comply with organisational policies and procedures, including quality requirements participate in work meetings comply with quality requirements use industry terminology apply appropriate safety procedures determine and document appropriate pipe and duct work fabrication and support requirements to meet project specifications and industry standards. |
Context of and specific resources for assessment | This unit may be assessed on the job, off the job or a combination of both on and off the job. Where assessment occurs off the job, that is the candidate is not in productive work, then an appropriate simulation must be used where the range of conditions reflects realistic workplace situations. The competencies covered by this unit would be demonstrated by an individual working alone or as part of a team. Where applicable, reasonable adjustment must be made to work environments and training situations to accommodate ethnicity, age, gender, demographics and disability. Access must be provided to appropriate learning and/or assessment support when required. Where applicable, physical resources should include equipment modified for people with disabilities. This unit could be assessed in conjunction with any other units addressing the safety, quality, communication, materials handling, recording and reporting associated with drafting or other units requiring the exercise of the skills and knowledge covered by this unit. |
Method of assessment | Assessors should gather a range of evidence that is valid, sufficient, current and authentic. Evidence can be gathered through a variety of ways, including direct observation, supervisor's reports, project work, samples and questioning. Questioning techniques should not require language, literacy and numeracy skills beyond those required in this unit of competency. The candidate must have access to all tools, equipment, materials and documentation required. The candidate must be permitted to refer to any relevant workplace procedures, product and manufacturing specifications, codes, standards, manuals and reference materials. |
Methods of joining | Methods of joining may include: spigots flanges mild steel angles weld braze solder seal bolt |
Materials | Materials must include: copper mild steel stainless steel plastic |
Methods for supporting | Methods for supporting may include: clamping hanging steel profile types |
Drawing, drafting and design
This unit contains employability skills.
No licensing, legislative, regulatory or certification requirements apply to this unit at the time of publication.