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Evidence Guide: UEERA0028 - Determine noise and vibration encountered in HVAC/R applications

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

 

UEERA0028 - Determine noise and vibration encountered in HVAC/R applications

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

Prepare HVAC/R system to determine noise and vibration encountered in application

  1. Work health and safety (WHS)/occupational health and safety (OHS) requirements and workplace procedures for a given work area are obtained and applied
Work health and safety (WHS)/occupational health and safety (OHS) requirements and workplace procedures for a given work area are obtained and applied

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

WHS/OHS risk control work preparation measures and workplace procedures are followed

Completed
Date:

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Nature of the problem is obtained from documentation or from work supervisor to determine the scope of work to be undertaken

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

Completed
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Sources of equipment and products required for HVAC/R work are established in accordance with workplace procedures

Completed
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Tools, equipment and testing devices needed to carry out HVAC/R work are obtained and checked for correct operation and safety

Completed
Date:

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Determine HVAC/R application noise and vibration measurements

  1. WHS/OHS risk control work measures and workplace procedures are followed
WHS/OHS risk control work measures and workplace procedures are followed

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Need to test or measure active HVAC/R systems is determined in accordance with WHS/OHS requirements and conducted in accordance with workplace safety procedures

Completed
Date:

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HVAC/R systems are checked and isolated in accordance with WHS/OHS requirements and workplace procedures

Completed
Date:

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Relevant technique or process methods are used to determine noise and vibration measurement encountered in HVAC/R application

Completed
Date:

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Unexpected situations are dealt with safely in accordance with workplace procedures and with the approval of authorised person/s in a manner that minimises risk to personnel and equipment

Completed
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Measurements are taken without damage to HVAC/R apparatus, circuits, the surrounding environment or services using sustainable energy practices with minimum waste and re-work

Completed
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Document HVAC/R application noise and vibration measurements and calculations

  1. WHS/OHS work completion risk control measures and workplace procedures are followed
WHS/OHS work completion risk control measures and workplace procedures are followed

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Worksite is cleaned and made safe in accordance with workplace procedures

Completed
Date:

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Justification for alternative approach to determine noise and vibrationmeasurements is documented and appropriate person/s notified in accordance with workplace procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Work completion is documented and appropriate person/s notified in accordance with workplace procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

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 one occasion and include:

identifying the dynamic characteristics of systems/materials and the effects due to different operating parameters

using established measurement methods

taking relevant measurements accurately

interpreting measured values appropriately

providing correct interpretation of data taken from measurements and calculations

dealing with unplanned events

applying problem solving procedures including using appropriate theorems

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

applying sustainable energy principles and practices

determining noise and vibration encountered in heating, ventilation and air conditioning/refrigeration (HVAC/R) applications.

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:

noise and vibration fundamentals, safe working practices and relevant standards, codes and regulations, including:

fundamentals of sound:

properties of sound: wavelength, amplitude, frequency, period, velocity, sound (intensity, pressure and power) and decibels

sound pressure level

sound power level

addition of sound levels

loudness and weighting networks

sound spectrum and octave bands

single value representation of sound spectrum

noise rating (NR) curves

sound meters

fundamentals of vibration:

terminology: spring-mass system, spring in series and/or parallel, stiffness, effective stiffness, viscous frictional coefficient, mass, period, frequency (angular, natural, damped and forced), amplitude, static deflection, damping ratio, damping factor and frequency ratio

simple harmonic motion (SHM)

damped vibration

forced vibration

maximum amplitude and resonance

transmissibility and isolation efficiency

vibration isolators

relevant HVAC/R manufacturer specifications

relevant job safety assessments or risk mitigation processes

relevant techniques, processes or measurement methods to obtain sound, noise and vibration data, including problem-solving procedures and appropriate theorems

relevant WHS/OHS legislated requirements

relevant workplace documentation

relevant workplace policies 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.

Providing sound, noise and vibration measurements must include at least the following:

two HVAC/R applications