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 drawings for the installation of reticulated services.

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

produce drawings for reticulated services to industry standard.

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.

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 others, as required, to gain information required

drafting skills

applying the correct line thicknesses and construction types to distinguish between building’s elements and systems

applying symbols, schedules and legends used in the mechanical services industry to the drawing

confirming selection of components with design specifications

applying operational principles of reticulated services to drawing work

arranging the views in a logical manner and in accordance with AS 1100.101–1992 Technical drawing – General principles

correctly using line thickness and construction to identify parts

using engineering and manufacturer catalogues, tables, standards and specifications

filing drawings according to workplace procedures

Required knowledge

Required knowledge includes:

general knowledge of different approaches to drawing

awareness of copyright and intellectual property issues and legislation in relation to drawing

environmental and OHS issues associated with the tools and materials used for drawing

quality assurance procedures

company standards for CAD

order of drawing process

company checking procedures for drawings

layout and presentation

the relevant statutory and authority requirements related to reticulation systems

terminology associated with drawings

the process of checking the completed drawing

the process of storing paper drawings and electronic drawing files

principles of steam reticulation

principles of reticulation

features and operating principles of a reticulation systems and components

flue requirements in an liquefied petroleum gas (LPG) system

issues and hazards of fuel storage

expansion and contraction factors

support systems/anchors used in reticulated systems

Available information

Available information may include:

construction documents

building and coordination information

work specifications

information for plant services equipment

industry codes, standards and regulations

design brief

Reticulated systems

Reticulated systems may include:

hot and cold water systems

steam and condensate systems

heating/chilled and condenser water systems

compressed air systems

natural and LPG systems

pipe work insulation

flues and insulation

Operational features and working principles of reticulated system components

Operational features and working principles of reticulated system components include:

variable refrigerant volume (VRV) systems

refrigeration systems

slab heating/cooling

hydronic heating

chilled beams

medical gases

fittings/valve types:

strainer

balancing

isolating

non-return

pumps

air side:

fans

dampers

registers

filters

air handling units

vav units

domestic hot and cold water systems

steam and condensate systems

heating/chilled and condenser water systems

compressed air systems

gas systems

insulation

Codes, standards and industry regulations

Safety standards 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

OHS codes of practice

Gas Regulations overview

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