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.

Critical aspects for assessment and evidence required to demonstrate competency in this unit

Assessors must be satisfied that the candidate can competently and consistently:

implement WHS workplace procedures and practices, including the use of risk control measures as specified in the performance criteria and range

demonstrate essential knowledge and skills to commission a HVAC/R system

demonstrate competence within a timeframe typically expected of the discipline, work function and industrial environment

demonstrate commissioning of HVAC/R systems consistently. This includes:

identifying system design operating parameters

measuring and adjusting system components and controls to provide optimum system performance

ensuring system operates within regulatory requirements

documenting adjustment settings with established procedures.

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, 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. The assessment environment should not disadvantage the candidate.

Method of assessment

Assessment must satisfy the endorsed Assessment Guidelines of the MEM05 Metal and Engineering Training Package.

Assessment methods must confirm consistency and accuracy of performance (over time and in a range of workplace relevant contexts) together with application of underpinning knowledge.

Assessment methods must be by direct observation of tasks and include questioning on underpinning knowledge to ensure correct interpretation and application.

Assessment may be applied under project-related conditions (real or simulated) and require evidence of process.

Assessment must confirm a reasonable inference that competency is not only able to be satisfied under the particular circumstance, but is able to be transferred to other circumstances.

Assessment may be in conjunction with assessment of other units of competency where required.

Guidance information for assessment

Assessment processes and techniques must be culturally appropriate and appropriate to the language and literacy capacity of the candidate and the work being performed.

Required skills

Required skills include:

interpreting commissioning requirements and system specifications

determining performance aspects of system

using appropriate test equipment effectively

devising a commissioning schedule and plan

setting up commissioning tests and documenting them

interpreting drawings and specifications

communicating effectively with others involved in the commissioning task

communicating technical and procedural requirements to others

documenting technical information and designs

dealing effectively with unexpected situations

working in teams and with others

Required knowledge

Required knowledge includes:

fundamentals of HVAC/R systems, including:

air systems

hydronic systems

control systems

chillers

boilers and furnaces

cooling towers

heat exchangers

piping

ducts

plant and equipment commissioning techniques and procedures, including:

set up

measuring and testing

fault-finding

adjustments

reporting and documenting

commissioning schedules

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

WHS requirements

WHS requirements include:

relevant legislation

protective equipment

material safety management systems

hazardous substances and dangerous goods code

local safe operation procedures

awards provisions

Environmental requirements

Environmental requirements include:

relevant legislation, regulations and codes

correct handling and disposal of liquid and solid waste

elimination or minimisation of gas, fume, vapour and smoke emissions, including fugitive emissions

dust elimination, minimisation and control

minimisation of energy and water use

elimination or control of excessive noise

use and recycling of refrigerants

Appropriate personnel

Appropriate personnel may include:

supervisor

leading hand

foreman

manager

engineer

technician

trainer

mentor

team member

customer

client

Plant and equipment

Plant and equipment may include:

control system

chiller

boiler

cooling tower

heat exchanger

Resources

Resources may include:

reference manuals

scientific calculator

appropriate manuals

stationery

Enterprise procedures

Enterprise procedures may include:

the use of tools and equipment

instructions, including job sheets, plans, drawings and designs

reporting and communication

manufacturer specifications

operational procedures

industry standards

Equipment

Equipment may include:

computer workstation and software, either stand alone or networked

test apparatus

appropriate tools of trade, equipment and materials