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Evidence Guide: UEERA0048 - Install and commission flammable refrigerant air conditioning and refrigeration systems

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!

From the Wiki University

 

UEERA0048 - Install and commission flammable refrigerant air conditioning and refrigeration systems

What evidence can you provide to prove your understanding of each of the following citeria?

Prepare to install and commission flammable refrigerant refrigeration and air conditioning systems

  1. WHS/OHS hazards, risk control methods, relevant standards, codes and legislation are obtained and applied
WHS/OHS hazards, risk control methods, relevant standards, codes and legislation are obtained and applied

Completed
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Safety hazards not previously identified are noted and risk control measures implemented

Completed
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Scope of work is determined from documentation and/or relevant person/s to establish work to be undertaken

Completed
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Component, equipment installation and commissioning work are sequenced in accordance with job schedule

Completed
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Relevant person/s is consulted to ensure the work is coordinated with others involved

Completed
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Materials required to install pipe work are obtained in accordance with workplace procedures and job specifications

Completed
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Tools, equipment and testing devices required to install and commission components and equipment are obtained in accordance with workplace procedures and checked for correct operation and safety

Completed
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System control settings and operating parameters are determined from job specifications

Completed
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Preparatory work is scheduled to ensure no damage has occurred in accordance with workplace procedures and relevant industry standards

Completed
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Install flammable refrigerant refrigeration and air conditioning systems

  1. Circuits/machines/plant are checked and isolated in accordance with WHS/OHS requirements and workplace procedures
Circuits/machines/plant are checked and isolated in accordance with WHS/OHS requirements and workplace procedures

Completed
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Components and equipment are installed with sufficient access to affect electrical and pipe work connections and maintenance in accordance with relevant legislation, standards and code requirements, manufacturer instructions, job specificationsand workplace procedures

Completed
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Components and equipment are installed in the required locations and within acceptable tolerances in accordance with relevant legislation, standards and code requirements, manufacturer instructions, job specificationsand workplace procedures

Completed
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Refrigerant tubing and fittings are silver brazed with dry nitrogen to prevent contamination in accordance with relevant legislation, standards and code requirements, manufacturer instructions, job specificationsand workplace procedures

Completed
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Unplanned situations from installation of components and equipment are dealt with in accordance with workplace procedures

Completed
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Quality checks of pipe work, pressure testing and repair of leaks are conducted in accordance with relevant legislation, standard and code requirements, manufacturer instructions, job specificationsand workplace procedures

Completed
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Components and equipment are installed efficiently without waste of materials or damage/contamination to apparatus, the surrounding environment or services using sustainable energy practices

Completed
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Commission flammable refrigerant refrigeration and air conditioning systems

  1. Installed system’s pipe work and components are evacuated to the required level in accordance with relevant legislation, standards and code requirements and manufacturer instruction
Installed system’s pipe work and components are evacuated to the required level in accordance with relevant legislation, standards and code requirements and manufacturer instruction

Completed
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System is charged with flammable refrigerant to the required level in accordance with relevant legislation, standard and code requirements, manufacturer instructions and job specification

Completed
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Refrigeration system pressure controls, valves and regulators are adjusted in accordance with relevant legislation, standard and code requirements, manufacturer instructions, job specificationsand workplace procedures

Completed
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Testing/measuring devices are used to observe operation of the refrigeration system and fine adjustments of controls made, as required, in accordance with relevant legislation, standard and code requirements, manufacturer instructions, job specificationsand workplace procedures

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

Completed
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Commissioning is conducted efficiently without waste of materials or damage to apparatus, the surrounding environment or services using sustainable energy practices

Completed
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Complete installation and commissioning work

  1. Worksite is cleaned and made safe in accordance with workplace procedures
Worksite is cleaned and made safe in accordance with workplace procedures

Completed
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Final check of the installed components and equipment is made in accordance with relevant industry standards and job specifications

Completed
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'As installed' components and equipment are documented and relevant person/s notified in accordance with workplace procedures

Completed
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Results of commissioning and final operating parameters are documented and relevant person/s notified in accordance with workplace procedures

Completed
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Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Required Skills and Knowledge

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 (WHS/OHS) requirements, including using risk control measures

commissioning flammable refrigerants systems

completing installation and commissioning reports and documentation

dealing with unplanned events

discharging/recovering and charging refrigerant/lubricants safely and without damage to components

evacuating the system to the required level safely and without damage to components

identifying the conditions of the refrigerant at various locations

installing flammable refrigerants refrigeration and air conditioning systems

installing, connecting, securing and aligning components and equipment

locating and rectifying leaks

preparing to install and commission flammable refrigerants refrigeration and air conditioning systems

pressure testing the system to the required level safely and without damage to components

reading and interpreting drawings to pipe work layouts and apparatus locations

recording measurements

selecting and using appropriate measuring devices correctly

using commissioning techniques

using sustainable energy principles and practices.

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:

relevant codes, regulations and standards

relevant manufacturer specifications

relevant safe work method statements (SWMS)/job safety assessments or risk mitigation processes

relevant site arrangements, including pipe work requirements and equipment location

relevant special features for flammable refrigerant systems, including component compatibility, refrigerant leakage and enclosures

relevant system diagrams

relevant WHS/OHS legislated requirements

relevant workplace documentation

relevant workplace quality, policies and procedures

sustainable energy principles and practices

system commissioning requirements and procedures

system, pipe work and component installation requirements and procedures.

Range Statement

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.

Installing and commissioning major components and associated equipment must include at least the following:

two refrigeration and/or air conditioning systems operating with a flammable refrigerants refrigerant

Major components must include at least the following:

refrigeration compressors

condensers

condensing units

evaporators

Associated equipment must include at least the following:

refrigerant flow controls

cycling controls

safety controls

on-site leak detection equipment

ventilation systems

spark isolation systems and electrical isolation

monitoring equipment

inspection accessories