Unit of Competency Mapping – Information for Teachers/Assessors – Information for Learners

UEERA0034 Mapping and Delivery Guide
Establish heat loads for commercial refrigeration and/or air conditioning applications

Version 1.0
Issue Date: May 2024


Qualification -
Unit of Competency UEERA0034 - Establish heat loads for commercial refrigeration and/or air conditioning applications
Description
Employability Skills
Learning Outcomes and Application This unit involves the skills and knowledge required to establish heat loads for commercial refrigeration and/or air conditioning applications.It includes determining heat loads for commercial refrigeration and air conditioning applications using quick selection, short-form paper and computer-based methods and documenting results.No licensing, legislative or certification requirements apply to this unit at the time of publication.
Duration and Setting X weeks, nominally xx hours, delivered in a classroom/online/blended learning setting.

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, equipment specifications, regulations, codes of practice and operation manuals.
Prerequisites/co-requisites
Competency Field Refrigeration and air-conditioning
Development and validation strategy and guide for assessors and learners Student Learning Resources Handouts
Activities 		Slides
PPT 		Assessment 1 Assessment 2 Assessment 3 Assessment 4
Elements of Competency Performance Criteria              
Element: Prepare to determine heat loads for commercial refrigeration and/or air conditioning applications
  • Work health and safety (WHS)/occupational health and safety (OHS) requirements and workplace procedures for a given work area are identified and applied
       
Element: WHS/OHS risk control measures and workplace procedures are followed in preparation for commercial refrigeration/air conditioning work
       
Element: Extent of heat load analysis is determined from project specifications and discussions with appropriate person/s
       
Element: Activities are planned to meet scheduled timelines in consultation with other person/s involved in commercial refrigeration/air conditioning work
       
Element: Effective strategies are determined to ensure solution development and implementation is carried out efficiently in accordance with workplace procedures
       
Element: Determine heat loads for commercial refrigeration and/or air conditioning applications
  • WHS/OHS risk control measures and workplace procedures for carrying out commercial refrigeration/air conditioning work is followed
       
Element: Specifications of commercial refrigeration and/or air conditioning system operating parameters are applied when performing heat load estimations
       
Element: Parameters, specifications and performance requirements in relation to commercial refrigeration and/or air conditioning system are set in accordance with workplace procedures
       
Element: Appropriate approaches to determine the heat loads are carried out to provide most effective solutions
       
Element: Unplanned events are dealt with safely and effectively consistent with regulatory requirements and workplace procedures in a manner that minimises risk to personnel and equipment
       
Element: Work quality is monitored in accordance with performance agreement and/or workplace or industry standards
       
Element: Complete and report heat loads for commercial refrigeration and /or air conditioning applications
  • Heat load estimations are documented, including details of findings, calculations and assumptions, in accordance with workplace procedures
       
Element: Completed heat loads are submitted to appropriate person/s to be checked for accuracy and compliance with project specifications and evaluated to determine whether performance requirements are met
       
Element: Heat load estimations are reported to relevant person/s to determine appropriate action to be taken based on findings
       


Evidence Required

List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.

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:

establishing system parameters for heat load

selecting appropriate head load calculation tools

identifying heat loads accurately

using calculation methods accurately

documenting heat loads correctly

dealing with unplanned events

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

applying sustainable energy principles and practices

determining heat loads for commercial refrigeration and air conditioning applications

planning to determine heat loads for commercial refrigeration/air conditioning 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:

commercial refrigeration heat load estimating commercial refrigeration applications, safe working practices and relevant standards, codes and regulations, including:

heat transfer:

factors affecting heat transfer

insulation material characteristics

vapour barriers (seals)

ambient conditions

composite walls (heat flows)

types of common insulation

thermal conductivity

film factors

cabinet construction and design:

deep freeze case

meat case

dairy case

fruit and vegetable case

drink cabinets

air change load:

room volumes

room usage (average, medium and heavy)

heat removed from cooling air to refrigerated conditions

air curtains

temperature differences

door opening sizes

Tamm’s equation

product load:

sensible heat

latent heat

heat of respiration

storage temperatures

unit running times

humidity

air flows

stacking of products

freeze, chill and thaw times

total freezer/cool room loads:

wall load

air change load

product load

miscellaneous

total load, safety factor and unit running times

floor loads in cool rooms

door opening loads (ASHRAE and RADS methods)

door opening loads (for trucks)

process cooling loads

cooling chemical reactions

energy balance methods

sensible and latent cooling of gases

sensible and latent cooling of water vapour in gas streams

computer programs

commercial air conditioning heat load estimating

heat load estimating for commercial air conditioning applications, safe working practices and relevant standards, codes and regulations, including:

heat flow in buildings:

conduction

convection

radiation

heat paths

thermal storage

different methods of calculations:

ASHRAE

carrier

finite difference

U values

film coefficients

solar heat:

direct

diffuse

sol air temperature

sun position calculations

design conditions:

outdoor

monthly/daily corrections

comfort/critical

indoor

effective temperature

thermal comfort

space characteristics

equipment location

zoning

internal loads:

lighting

equipment

people

load profiles

internal partitions

fresh air/AS 1668 The use of ventilation and air conditioning in buildings

calculation of fabric loads:

walls

roofs

floors

windows:

glass types and factors

shade factors

internal and external shading

shading from adjacent structures

air quantity calculation:

psychrometrics

by-pass factor

coil load

variable air volume (VAV) air quantities

piping and other losses

refrigeration plant load

computer software:

responsible use

relevant commercial refrigeration and air conditioning manufacturer specifications

relevant job safety assessments or risk mitigation processes

relevant WHS/OHS legislated requirements

relevant workplace documentation

relevant workplace policies and procedures.

Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assignment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)

Assessment Tasks

Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.

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 heat loads for commercial refrigeration and/or air conditioning applications must include at least the following:

one quick selection short-form paper and/or one computer-based method for a refrigeration and/or air conditioning system

Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.

Observation Checklist

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
Work health and safety (WHS)/occupational health and safety (OHS) requirements and workplace procedures for a given work area are identified and applied 
 
 
 
 
WHS/OHS risk control measures and workplace procedures for carrying out commercial refrigeration/air conditioning work is followed 
 
 
 
 
 
Heat load estimations are documented, including details of findings, calculations and assumptions, in accordance with workplace procedures 
 
 

Forms

Assessment Cover Sheet

UEERA0034 - Establish heat loads for commercial refrigeration and/or air conditioning applications
Assessment task 1: [title]

Student name:

Student ID:

I declare that the assessment tasks submitted for this unit are my own work.

Student signature:

Result: Competent Not yet competent

Feedback to student

 

 

 

 

 

 

 

 

Assessor name:

Signature:

Date:

Assessment Record Sheet

UEERA0034 - Establish heat loads for commercial refrigeration and/or air conditioning applications

Student name:

Student ID:

Assessment task 1: [title] Result: Competent Not yet competent

(add lines for each task)

Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

Assessor name:

Signature:

Date:

Student signature:

Date: