This describes the essential skills and knowledge and their level required for this unit

Evidence shall show that knowledge has been acquired of safe working practices and positioning assembling and starting up split air conditioning and water heating heat pump systems

All knowledge and skills detailed in this unit should be contextualised to current industry practices and technologies

KSEJA Split air conditioning and water heating heat pump system installation

Evidence shall show an understanding of split air conditioning and water heating heat pump system installation startup and decommissioning applying safe working practices and relevant Standards Codes and Regulations to an extent indicated by the following aspects

T Sustainable energy

The earths atmosphere

The greenhouse effect

Energy usage in Australia gases coal fuel oil etc

Projected population increase and its effects

International and national greenhouse imperatives the role of regulators and similar bodies Kyoto Protocol

T Sustainable energy work practices

Definitions

Renewable energy technologies solar wind biomass geothermal tidal hydro nuclear

The concept of cogeneration

Economic benefits of sustainable energy initiatives

T Heritage awareness

Heritage listings concept and types world national commonwealth etc

Purpose of regulations related to maintenance of listed sites

Responsibilities while working in and around listed sites

Environmental protection

Government agencies AGO EPHC DEC etc

Environmental protection land water atmosphere human settlement biodiversity etc

Purpose of regulations related to environmental protection

Responsibilities while working in and around environmentally protected sites

Protocols for working in and around protected sites legislated acts ozone protection etc

T Relevant installation codes

Applicable standards and codes building electrical health environmental OHampS act ozone protection act Refrigerant Handling Code of Good Practice

Introduction to MEPS minimum energy performance standards and the star rating

T Split air conditioning systems

T Types and applications

categories high wall floor mounted ceiling mounted cassette ducted

sub categories single head multi head

types cooling only reverse cycle inverter dc

typical applications for each category type

system ratings hp vs kw standard ambient conditions for capacity ratings actual star rating examples

Components construction and operation

evaporators finned induced and forced draught

metering devices capillary restrictor

service ports ball valves post valves schrader valves

reverse cycle reversing valves

air distribution nonducted fans filters swing louvers etc

air distribution ducted ducting types btos dampers outlets grilles plenums filters etc

typical ducting layouts maps

typical mechanical system layouts cooling only reverse cycle

evaporating and condensing temperatures pressures design and typical operating values

controls operating and safety encapsulated lp amp hp sensors compressor overload deice stat etc

T Split water heating heat pump systems

Types and typical applications including hot water heating and swimming pool heating

Components construction and operation

Cooling coil

Heating coil

Metering devices capillary restrictor

Service ports ball valves post valves Schrader valves

Typical mechanical system layouts

Evaporating and condensing temperatures pressures design and typical operating values

Controls operating and safety encapsulated LP amp HP sensors compressor overload etc

T Installation of unit and pipework

Respect for customers premises ontime respectful language private commodities toilets cleanup etc

Noise and vibration problems for neighbours typical council requirements

Location amp mounting outdoor unit suitable locations slabs brackets wallroof machine pads eg waffle etc

Location amp mounting indoor unitwater heater suitable locations penetrations hanging mounting methods

Refrigerant piping layout installation insulation pair coil protection steel trunking plastic pipe duct

Condensate drains and pumps correct drainage safety drain on FCU condensate pumps

Personal safety safe lifting correct use of ladder and platforms

Manufacturers installation instructions examples of typical manufacturers installation guides

Electrical connections by electrician

Mains water connections by plumber

T System start up

Manufacturers startup instructions examples of typical manufacturers guides

Pressure testing refrigerant pipework and system nitrogen

Evacuation

Opening outdoor unit valves

Checking refrigerant charge pressures temperatures sweat line evaporator superheat etc

Adding refrigerant manufacturers recommended topup values for longer pipework runs

Leak detection

Customer familiarisation completing warranty card operating instructions general maintenance instructions

T Decommission split air conditioning systems

Closing isolations valves on outdoor unit

Indoor unit pump down and recovery

Sealing refrigerant components

Electrical isolation and disconnection by electrician

Mains water isolation and disconnection by plumber

Unit piping drain and electrical cable removal

The evidence guide provides advice on assessment and must be read in conjunction with the Performance Criteria Required Skills and Knowledge the Range Statement and the Assessment Guidelines for this Training Package

The Evidence Guide forms an integral part of this Unit It must be used in conjunction with all parts of this unit and performed in accordance with the Assessment Guidelines of this Training Package

Overview of Assessment

Longitudinal competency development approaches to assessment such as Profiling require data to be reliably gathered in a form that can be consistently interpreted over time This approach is best utilised in Apprenticeship programs and reduces assessment intervention It is the industrypreferred model for apprenticeships However where summative or final assessment is used it is to include the application of the competency in the normal work environment or at a minimum the application of the competency in a realistically simulated work environment In some circumstances assessment in part or full can occur outside the workplace However it must be in accordance with industry and regulatory policy

Methods chosen for a particular assessment will be influenced by various factors These include the extent of the assessment the most effective locations for the assessment activities to take place access to physical resources additional safety measures that may be required and the critical nature of the competencies being assessed

The critical safety nature of working with electricity electrical equipment gas or any other hazardous substancematerial carries risk in deeming a person competent Sources of evidence need to be rich in nature to minimise error in judgment

Activities associated with normal everyday work influence decisions about howhow much the data gathered will contribute to its richness Some skills are more critical to safety and operational requirements while the same skills may be more or less frequently practised These points are raised for the assessors to consider when choosing an assessment method and developing assessment instruments Sample assessment instruments are included for Assessors in the Assessment Guidelines of this Training Package

Critical aspects of evidence required to demonstrate competency in this unit

Before the critical aspects of evidence are considered all prerequisites must be met

Evidence for competence in this unit shall be considered holistically Each Element and associated performance criteria shall be demonstrated on at least two occasions in accordance with the Assessment Guidelines UEE Evidence shall also comprise

A representative body of work performance demonstrated within the timeframes typically expected of the discipline work function and industrial environment In particular this shall incorporate evidence that shows a candidate is able to

Implement Occupational Health and Safety workplace procedures and practices including the use of risk control measures as specified in the performance criteria and range statement

Apply sustainable energy principles and practices as specified in the performance criteria and range statement

Demonstrate an understanding of the essential knowledge and associated skills as described in this unit It may be required by some jurisdictions that RTOs provide a percentile graded result for the purpose of regulatory or licensing requirements

Demonstrate an appropriate level of skills enabling employment

Conduct work observing the relevant Anti Discrimination legislation regulations polices and workplace procedures

Demonstrated consistent performance across a representative range of contexts from the prescribed items below

Position assemble and start up split air conditioning and water heating heat pump systems as described in and including

A

Determining job requirements correctly

B

Positioning and assembling system components to specifications

C

Assembling piping and tubing to specifications

D

Pressure testing an evacuating the system in accordance with manufacturers instructions and industry standards codes and regulations

Note Refrigerant purging is not permitted in Australia

Note:
Refrigerant purging is not permitted in Australia

E

Giving notification to appropriate person for electrical connections to be completed

F

Decommissioning single head split air conditioning and water heating heat pump units

G

Testing system performance correctly to manufacturer design specifications

H

Documenting work activities

I

Demonstrating a basic understanding of system performance outside manufacturers design specifications

J

Demonstrating a basic understanding of the compressor condenser evaporator and flow control types and their function relevant to single head split system installation

K

Dealing with unplanned events by drawing on essential knowledge and skills to provide appropriate solutions incorporated in the holistic assessment with the above listed items

Note Successful completion of relevant vendor training may be used to contribute to evidence on which competency is deemed In these cases the alignment of outcomes of vendor training with performance criteria and critical aspects of evidence shall be clearly identified

Note:
Successful completion of relevant vendor training may be used to contribute to evidence on which competency is deemed. In these cases the alignment of outcomes of vendor training with performance criteria and critical aspects of evidence shall be clearly identified.

Context of and specific resources for assessment

This unit should be assessed as it relates to normal work practice using procedures information and resources typical of a workplace This should include

OHS policy and work procedures and instructions

Suitable work environment facilities equipment and materials to undertake actual work as prescribed by this unit

These should be part of the formal learningassessment environment

Note Where simulation is considered a suitable strategy for assessment conditions must be authentic and as far as possible reproduce and replicate the workplace and be consistent with the approved industry simulation policy

Note:
Where simulation is considered a suitable strategy for assessment, conditions must be authentic and as far as possible reproduce and replicate the workplace and be consistent with the approved industry simulation policy.

Evidence should show demonstrated competency in positioning assembling and starting up split air conditioning and water heating heat pump systems

Method of assessment

This unit shall be assessed by methods given in Volume Part Assessment Guidelines

Note Competent performance with inherent safe working practices is expected in the Industry to which this unit applies This requires assessment in a structured environment which is intended primarily for learningassessment and incorporates all necessary equipment and facilities for learners to develop and demonstrate the essential knowledge and skills described in this unit

Note:
Competent performance with inherent safe working practices is expected in the Industry to which this unit applies. This requires assessment in a structured environment which is intended primarily for learning/assessment and incorporates all necessary equipment and facilities for learners to develop and demonstrate the essential knowledge and skills described in this unit.

Concurrent assessment and relationship with other units

There are no concurrent assessment recommendations for this unit