Modification History
Release 1 - New unit of competency
Unit Descriptor
This unit of competency covers the skills and knowledge required to produce detailed engineering drawings for the installation of heating, ventilation, air conditioning and refrigeration (HVAC/R) systems within the mechanical services industry.
Application of the Unit
This unit is suitable for those working within a drafting work environment in the mechanical services industry. Drawings 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.
Licensing/Regulatory Information
No licensing, legislative, regulatory or certification requirements apply to this unit at the time of publication.
Pre-Requisites
MEM09002B |
Interpret technical drawing |
MEM09204A |
Produce basic engineering detail drawings |
Employability Skills Information
This unit contains employability skills
Elements and Performance Criteria Pre-Content
Elements describe the essential outcomes of a unit of competency. |
Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold italicised text is used, further information is detailed in the required skills and knowledge section and the range statement. Assessment of performance is to be consistent with the evidence guide. |
Elements and Performance Criteria
1 |
Determine drawing requirements |
1.1 |
Check purpose, scope and information requirements for drawing |
1.2 |
Interpret available information relevant to project and work requirements, and identify and address further information needs |
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1.3 |
Identify and prepare equipment required to complete work |
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1.4 |
Identify and apply relevant codes, standards and symbols used in the mechanical services industry for installation drawings |
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1.5 |
Identify and access organisational files, templates and symbols as required for work |
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1.6 |
Identify environmental implications of inefficient systems and strategies for minimising impact |
2 |
Identify HVAC/R measuring and control devices |
2.1 |
Identify features and uses of temperature and pressure measurement devices |
2.2 |
Identify features and uses of air and fluid measurement instruments |
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2.3 |
Identify features and uses of standard control devices and measurement devices |
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2.4 |
Identify location of control and measurement devices on drawings |
3 |
Produce drawings for installation of heating and cooling systems |
3.1 |
Apply operating principles and specifications of heating and cooling systems and equipment to drawing work |
3.2 |
Complete drawing according to mechanical services industry standard for heating and cooling systems |
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3.3 |
Ensure drawing accurately reflects specifications, is presented according to organisational requirements and contains all relevant information |
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3.4 |
Apply workplace occupational health and safety (OHS) and environmental procedures |
4 |
Produce drawings for installation of air conditioning and exhaust systems |
4.1 |
Apply operating principles and specifications of a range of air conditioning systems and equipment to drawing work |
4.2 |
Apply operating principles and specifications of a range of exhaust systems to drawing work |
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4.3 |
Complete drawing according to mechanical services industry standard for air conditioning systems |
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4.4 |
Ensure drawing accurately reflects specifications, is presented according to organisational requirements and contains all relevant information |
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4.5 |
Evaluate drawing for system efficiency and make or report potential improvements |
5 |
Produce drawings for installation of refrigeration systems |
5.1 |
Apply operating principles and specifications of a range of refrigeration systems and equipment to drawing work |
5.2 |
Complete drawing according to mechanical services industry standard for refrigeration systems |
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5.3 |
Ensure drawing is presented according to organisational requirements and contains all relevant information |
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5.4 |
Evaluate drawing for system efficiency and make or report potential improvements |
6 |
Consult appropriately with other disciplines |
6.1 |
Verify the parameters of the brief and clarify specifications with appropriate personnel |
6.2 |
Identify and consult with support services |
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6.3 |
Present and explain drawings at appropriate stages of the project |
Required Skills and Knowledge
Required skills |
Required skills include:
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Required knowledge |
Required knowledge includes:
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Evidence Guide
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. |
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Overview of assessment |
A person who demonstrates competency in this unit must be able to interpret and apply drawing specifications and industry standards in the production of installation drawings for the mechanical services industry. |
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:
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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. |
Range Statement
Available information |
Available information may include:
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Industry standards |
Industry standards may include, but are not limited to:
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Codes, standards and industry regulations |
Codes, standards and industry regulations may include:
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Heating and cooling systems and equipment |
Heating and cooling systems and equipment may include:
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Pressure and temperature measurement devices |
Pressure and temperature measurement devices may include:
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Air conditioning equipment |
Air conditioning equipment may include:
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Exhaust systems |
Exhaust systems may include:
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Refrigeration equipment |
Refrigeration equipment may include:
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Standard drawing conventions |
Standard drawing conventions may include:
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Appropriate personnel |
Appropriate personnel may include:
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Support services |
Support services may include:
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Unit Sector(s)
Drawing, drafting and design
Custom Content Section
Not applicable.