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 installing refrigeration and air conditioning systems major components and associated equipment

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

KSEJA Refrigeration and air conditioning refrigeration systems major components and associated equipment installation

Evidence shall show an understanding of refrigeration and air conditioning refrigeration systems major components and associated equipment installation applying safe working practices and relevant Standards Codes and Regulations to an extent indicated by the following aspects

T Refrigeration equipment installation requirements and procedures

Standards codes and requirements applicable to installing refrigeration equipment

Environmental and building regulations

Major components and associated equipment including condensing units compressors condensers cooling towers liquid receivers evaporators fan coil units package units fans and air distribution equipment pumps

Functions types operation and applications

Installation techniques encompassing manufacturers specifications and installation instructions locating and placing major components

Accessories installation

Connecting piping

Maintenance of fire rating integrity

T Cool room and freezer room systems installation requirements and procedures

Food spoilage encompassing Effects of storage conditions Controlled atmosphere Relative humidity Evaporator temperature difference Room design conditions

Room types and construction encompassing Prefabricated and permanent type walkin cool rooms and freezer rooms Construction Insulation Vapour barrier Frost heave Interior fittings

Layouts and installation encompassing Location of equipment Equipment site arrangements and building services Access and obstructions Power supply and electrical services Arrangement of piping

Components and features encompassing Refrigerant controls Evaporators Solenoid valves Crankcase pressure regulators Defrosting method and mullions Drain facilities and heaters Pressured relief valves Door hardware Lighting and germicidal lamps

System and defrost controls encompassing Operating conditions Thermostat and pressure controls Defrost timers and controllers Overloads and safety control Electrical power and control circuits

Manufacturers specifications and installation instructions

Relevant Standards codes and Regulation requirements

Relevant Public Health requirements

T Merchandising and display cabinets installation requirements and procedures

Types and construction encompassing Deep freeze meat dairy and fruit and vegetables Multi deck display type Single deck well type and island cases Glass doorreachin merchandiser

Components and features encompassing Condensing units Refrigerant controls Evaporators and fans Defrosting method and mullions Drain facilities and drain heaters Air distribution and airflow curtains Cabinet air temperature velocity and direction Accessories Lighting

Layouts and installation encompassing Location of equipment Equipment site arrangements and building services Access and obstructions Power supply and electrical services Arrangement of piping

System and defrost controls encompassing Operating conditions Alarm systems Thermostats and pressure controls Defrost timers and controllers Electrical power and control circuits

Multiple systems encompassing Multiple compressors Multiple evaporators Heat reclaim systems Multitemperature accessories Controls and sequencing

Manufacturers specifications and installation instructions

Relevant Standards codes and Regulation requirements

Relevant Public Health requirements

T Residential air conditioning systems installation requirements and procedures

Types components construction operation and application of residential air conditioners encompassing Types window mounted high wall floor and ceiling mounted cassette and ducted Typical applications for various types of systems Components Construction and Operation of the major components within a system air distribution Flexible ducting and associated fittings fans filters noise and vibration Control systems Operation of a typical system including reverse cycle

Procedures for selecting a system for a specific application encompassing Determining heat load sources using estimating methods and manufacturers data unit and associated equipment selection

Installation of unit and pipework encompassing Respect for customers premises Unit location and mounting Flexible ducting and associated fittings Fixing securing and mounting methods Safe lifting use of ladders and platforms Manufacturers installation Refrigerant piping layout installation insulation fastening and covering Condensate drains and pumps

Starting up system encompassing Manufacturers start up instructions pressure testing evacuation opening outdoor unit valves checking refrigerant charge pressures temperature sweat line and evaporator superheat adding refrigerant leak detection controls operating and safety customer familiarisation

Relevant Standards codes and Regulation requirements

T Package air conditioning systems installation requirements and procedures

Air conditioning design conditions encompassing temperature humidity and ventilation

Package air conditioning systems types construction components ancillary equipment applications and operating conditions

Layouts and installation encompassing Location of equipment Equipment site arrangements and building services Access and obstructions Power supply and electrical services Arrangement of piping

System controls encompassing Thermostat and pressure controls timers and controllers overloads and safety control electrical power and control circuits

Manufacturers specifications and installation instructions

Relevant Standards codes and Regulation requirements

Relevant Public Health requirements

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

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 - UEE07 '. 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

Install refrigeration and air conditioning systems major components and associated equipment as described in and including

A

Reading and interpreting drawings related to pipe work layouts and apparatus locations

B

Placing aligning and securing components and equipment to comply with requirements

C

Connecting components equipment and pipe work to comply with requirements

D

Cleaning system of contaminants

E

Ensuring system will not leak under pressure

F

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

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

Evidence should show demonstrated competency in installing refrigeration and air conditioning systems major components and associated equipment

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

For optimisation of training and assessment effort competency development in this unit may be arranged concurrently with unit

UEENEEJA

UEENEEJ106A

Install refrigerant pipe work flow controls and accessories