Unit of competency Outline

Date retreived
23/07/2026 1:05 AM AWST

Whilst all efforts are made to provide accurate and timely information from the relevant source/documentation, please be aware that the information supplied may not be the most current version. The accuracy of the detail has not been confirmed by the Department and therefore should not be relied upon without first confirming the contents.

Produce drawings for mechanical services

Produce drawings for mechanical services

Unit of competency
National Code
MEM09206A
State Code
WE061
TGA Status
Replaced
DTWD Status
Replaced
Current Release Number
1.00
Current Release Date
25/06/2012
State Implementation and Classification
Approved Date
14/06/2013
Field of Education
039999 - Engineering And Related Technologies, N.e.c.
Original Release Date
14/06/2013
Nominal Hours
60
Description
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.
Notes
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
  • 1.3 Identify and prepare equipment required to complete work
  • 1.4 Identify and apply relevant codes, standards and symbols used in the mechanical services industry for installation drawings
  • 1.5 Identify and access organisational files, templates and symbols as required for work
  • 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
  • 2.3 Identify features and uses of standard control devices and measurement devices
  • 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
  • 3.3 Ensure drawing accurately reflects specifications, is presented according to organisational requirements and contains all relevant information
  • 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
  • 4.3 Complete drawing according to mechanical services industry standard for air conditioning systems
  • 4.4 Ensure drawing accurately reflects specifications, is presented according to organisational requirements and contains all relevant information
  • 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
  • 5.3 Ensure drawing is presented according to organisational requirements and contains all relevant information
  • 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
  • 6.3 Present and explain drawings at appropriate stages of the project
Available information
Available information may include:
floor plans, elevations, sections and site layout drawings
construction documents
building and coordination information
work specifications
information for plant services equipment
industry codes, standards and regulations
design brief
Industry standards
Industry standards may include, but are not limited to:
Building Codes of Australia (BSA)
Australian Standards (AS)
legislation requirements from Building Practitioner's Board (RBP)
Australian Gas Codes (AGC)
Sheet Metal and Air Conditioning Contractors National Association (SMACNA)
third-party manufacturing and installation standards
company standards
guidelines
general practices
Codes, standards and industry regulations
Codes, standards and industry regulations may include:
AS/NZS 1668 Set:2005 The use of ventilation and air conditioning in building Set
AS 1682.1-1990 Fire dampers - Specification
AS 4254-2002 Ductwork for air-handling systems in buildings
building codes
gas, water and electricity regulations
OHS codes of practice
Heating and cooling systems and equipment
Heating and cooling systems and equipment may include:
boilers
clarifiers
heat exchanges
coils
centrifugal chillers
cooling towers
pumps
valves
auto refill units
expansion tanks
pipe work systems
Pressure and temperature measurement devices
Pressure and temperature measurement devices may include:
humidistat
thermostat
Air conditioning equipment
Air conditioning equipment may include:
fans
air filtration units
heating systems
cooling systems
ducts, grilles
diverters
diffusers
dampers
humidifier/dehumidifier
exhaust hoods
Exhaust systems
Exhaust systems may include:
kitchen
fume
dust
smoke
toilet and car park systems
Refrigeration equipment
Refrigeration equipment may include:
refrigeration compressors
condensers
evaporative condensers
pumps
Standard drawing conventions
Standard drawing conventions may include:
use of correct sectioning technique
identification of cutting plane
accurate line types
appropriate view positions
use of correct symbols
use of correct dimensioning technique
provision of suitable number of views
use of correct scales
neat presentation
Appropriate personnel
Appropriate personnel may include:
designer
engineer
supervisor
contractor/consultant
builder
Support services
Support services may include:
estimating department and personnel
engineering department and personnel
drafting department and personnel
project manager
factory manager or staff
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 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:
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
demonstrate industry knowledge, including:
industry size, scope of work and economic issues
relevant industrial awards and enterprise agreements
relevant legislative provisions covering discrimination and equal employment opportunity
identify features and uses of componentry and system elements for mechanical services and requirements for documenting on detail drawings
produce industry standard detail drawings for mechanical services industry.
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.
Replaced By
State Code National Code Title Type
OEX64 MEM09206 Produce drawings for mechanical services Unit of competency
State Code National Code Title Type
J367 MEM50212 Diploma of Engineering - Technical Qualification
J159 MEM40412 Certificate IV in Engineering Drafting Qualification