This unit involves the skills and knowledge required to determine operating conditions of air conditioning systems.

It includes working safely; determining air temperature, air flow rates and relative humidity using measurement and calculation methods.

The skills and knowledgein this unit will be applied by refrigeration and air conditioning technicians during the commissioning, service and repair of air conditioning systems.

The skills and knowledge described in this unit may, in some jurisdictions, require a licence or permit to practice in the workplace subject to regulations for undertaking refrigeration and air conditioning work. Practice in the workplace and during training is also subject to work health and safety (WHS)/occupational health and safety (OHS) regulations.

ELEMENTS

PERFORMANCE CRITERIA

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1

Prepare to determine operating conditions of air conditioning system

1.1

WHS/OHS hazards, risk control methods, relevant standards, codes and legislation are obtained and applied in accordance with workplace procedures

1.2

Safety hazards which have not previously been identified are assessed, reported and advice on risk control measures is sought from supervisor

1.3

System design operating conditions are obtained from documentation or supervisor to determine scope of work to be undertaken

1.4

Advice is sought from the supervisor to ensure work is coordinated effectively with others

1.5

Materials required for the work are identified and obtained in accordance with workplace procedures

1.6

Tools, equipment and testing devices needed to determine operating conditions are obtained and checked for correct operation and safety in accordance with workplace procedures

2

Determine operating conditions of air conditioning system

2.1

Measuring system operating parameters are implemented in accordance with job requirements and workplace safety procedures

2.2

Air conditioning system is checked and isolated in accordance with workplace procedures

2.3

Actual and specified range of operating conditions are determined from measured and calculated values as they apply to air conditioning system in accordance with workplace procedures

2.4

Methods for dealing with unplanned situations/events are discussed with appropriate person/s and documented

2.5

Unexpected situations are dealt with safely and with the approval of relevant person/s

2.6

Operating conditions for air conditioning system are determined without damage to apparatus, circuits, the surrounding environment or services using relevant workplace sustainable energy practices in accordance with workplace procedures

3

Complete work and report

3.1

Worksite and equipment are cleaned and made safe in accordance with workplace procedures

3.2

Operating conditions are documented, including identification of any parameter that is not within the specified range for the of air conditioning system, in accordance with workplace procedures

3.3

Supervisor is notified of completion of work in accordance with workplace procedures

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements, performance criteria and range of conditions on at least two separate occasions and include:

applying relevant work, health and safety (WHS)/occupational health and safety (OHS) requirements, including using risk control measures

applying safe working practices and relevant industry standards, codes of practice and regulations

applying sustainable energy principles and practices

completing work documentation and reporting requirements

dealing with unplanned events/situations in accordance with workplace procedures in a manner that minimises risk to personnel and equipment

determining the basic operating conditions of an air conditioning systems, including the air dry and wet bulb temperatures, relative humidity, air velocity and volume flow rates across a grille/register and documenting operating conditions

identifying operating parameters not within specified range of the air conditioning system

interpreting measurements

selecting and using appropriate measuring devices

using calculation methods accurately.

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements, performance criteria and range of conditions and include knowledge of:

operating condition of air conditioning system, including:

air conditioning industry classifications, applications and common types of systems

air conditioning processes

air velocity, units of measurement, measuring devices (anemometer only), applications and taking readings

air volume flow rate and its units of measurement

basic air conditioning heat loads and check figures

factors effecting human comfort and the comfort zone

hazards and risk control measures

psychrometrics, composition of air and basic psychrometric chart properties and plotting points

risk management principles, processes and safe working practices

safety data sheets (SDS)/material safety data sheets (MSDS)

sustainable energy principles and practices

temperature and relative humidity, scales, measuring devices and taking readings

ventilation needs, methods and applications

volume flow rate calculations

relevant industry standards, codes of practice, regulations and WHS/OHS legislated requirements

relevant manufacturer specifications

relevant risk mitigation processes

relevant workplace documentation

relevant workplace policies and procedures.

Assessors must hold credentials specified within the Standards for Registered Training Organisations current at the time of assessment.

Assessment must satisfy the Principles of Assessment and Rules of Evidence and all regulatory requirements included within the Standards for Registered Training Organisations current at the time of assessment.

Assessment must occur in workplace operational situations where it is appropriate to do so; where this is not appropriate, assessment must occur in simulated workplace operational situations that replicate workplace conditions.

Assessment processes and techniques must be appropriate to the language, literacy and numeracy requirements of the work being performed and the needs of the candidate.

Resources for assessment must include access to:

a range of relevant exercises, case studies and/or other simulations

relevant and appropriate materials, tools, equipment and personal protective equipment (PPE) currently used in industry

applicable documentation, including workplace procedures, industry standards, equipment specifications, regulations, codes of practice and operation manuals.

Foundation skills essential to performance are explicit in the performance criteria of this unit of competency.

Range is restricted to essential operating conditions and any other variables essential to the work environment.

Non-essential conditions may be found in the UEE Electrotechnology Training Package Companion Volume Implementation Guide.

Determining operating conditions of air conditioning system must include at least the following:

using measurement and calculation methods of air side components of air conditioning systems, including:

air dry and wet bulb temperatures

air velocity

relative humidity

volume flow rates across a grille/register

Electrotechnology

Refrigeration and air-conditioning