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Evidence Guide: UEENEEJ124A - Commission refrigeration/ air conditioning hydronic 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

 

UEENEEJ124A - Commission refrigeration/ air conditioning hydronic systems

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

Prepare to commission hydronic systems for refrigeration/air conditioning

  1. OHS procedures for a given work area are identified, identified, obtained and understood
  2. Established OHS risk control measures and procedures are followed in preparation for the work.
  3. Safety hazards that have not previously been identified are noted and established risk control measures are implemented.
  4. Appropriate personnel are consulted to ensure the work is coordinated effectively with others involved on the work site.
  5. System operating parameters are identified by reviewing system specifications and component technical data.
  6. Tools, equipment and testing devices needed for the work are obtained in accordance with established procedures and checked for correct operation and safety.
  7. Preparatory work is checked to ensure no damage has occurred and complies with requirements.
  8. The need to test or measure live is determined in strict accordance with OHS requirements and when necessary conducted within established safety procedures.
  9. Circuits are checked as being isolated where necessary in strict accordance OHS requirements and procedures.
OHS procedures for a given work area are identified, identified, obtained and understood

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Established OHS risk control measures and procedures are followed in preparation for the work.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Safety hazards that have not previously been identified are noted and established risk control measures are implemented.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Appropriate personnel are consulted to ensure the work is coordinated effectively with others involved on the work site.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

System operating parameters are identified by reviewing system specifications and component technical data.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Tools, equipment and testing devices needed for the work are obtained in accordance with established procedures and checked for correct operation and safety.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Preparatory work is checked to ensure no damage has occurred and complies with requirements.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

The need to test or measure live is determined in strict accordance with OHS requirements and when necessary conducted within established safety procedures.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Circuits are checked as being isolated where necessary in strict accordance OHS requirements and procedures.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Commission hydronic systems for refrigeration/air conditioning.

  1. OHS risk control measures and procedures for carrying out the work are followed.
  2. Testing/measuring devices are connected and set up in accordance with requirements for a particular system.
  3. Measurements and adjustments are made to equipment components and controls to provide optimum system performance in accordance with system specifications and regulatory requirements.
  4. Decisions for dealing with unexpected situations are made from discussions with appropriate persons and job specifications and requirements.
  5. Methods for dealing with unexpected situations are selected on the basis of safety and specified work outcomes.
  6. Commissioning is carried out efficiently without waste of materials or damage to apparatus, the surrounding environment or services and using sustainable energy principles.
OHS risk control measures and procedures for carrying out the work are followed.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Testing/measuring devices are connected and set up in accordance with requirements for a particular system.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Measurements and adjustments are made to equipment components and controls to provide optimum system performance in accordance with system specifications and regulatory requirements.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Decisions for dealing with unexpected situations are made from discussions with appropriate persons and job specifications and requirements.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Methods for dealing with unexpected situations are selected on the basis of safety and specified work outcomes.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Commissioning is carried out efficiently without waste of materials or damage to apparatus, the surrounding environment or services and using sustainable energy principles.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Completion and report commissioning activities.

  1. OHS risk control work completion measures and procedures are followed.
  2. Work site is cleaned and made safe in accordance with established procedures.
  3. Adjustment settings are documented and an appropriate person or persons notified in accordance with established procedures.
OHS risk control work completion measures and procedures are followed.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Work site is cleaned and made safe in accordance with established procedures.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Adjustment settings are documented and an appropriate person or persons notified in accordance with established procedures.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

9) 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

9.1)

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 industry-preferred 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 substance/material 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 how/how 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

9.2)

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 - 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:

Commission hydronic systems for refrigeration and/or air conditioning systems as described in 8) and including:

A

Identifying system operating parameters

B

Measuring and adjusting system components and controls to provide optimum system performance

C

Ensuring system operates within regulatory requirements

D

Documenting adjustment settings with established procedures

E

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

Context of and specific resources for assessment

9.3)

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 learning/assessment 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 commissioning hydronic systems for refrigeration and/or air conditioning.

Method of assessment

9.4)

This unit shall be assessed by methods given in Volume 1, Part 3 '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 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

9.5)

There are no concurrent assessment recommendations for this unit.

Required Skills and Knowledge

7) 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 commissioning hydronic systems for refrigeration and/or air conditioning.

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

KS01-EJ124A Hydronic system commissioning

Evidence shall show an understanding of hydronic system commissioning, applying safe working practices and relevant Standards, Codes and Regulations to an extent indicated by the following aspects:

T1 Commissioning fundamentals

building specifications/requirements/responsibilities

design and as installed drawings

building codes

local government regulations

design conditions

pre – commissioning checks

calibration of instruments

commissioning procedures

data collection and recording, documentation

reporting procedures

T2 Hydronic systems operation

closed/open systems

pump head/lift, static head (high rise building)

system friction losses

nett positive suction head

system curves

T3 Pumps

types

selection criteria

performance characteristics

pump curves and system curves

pump testing

capacity calculations

bladder tanks

coil characteristics

heat exchangers: plate, shell and tube, tube in tube

flow measurements: types

flow switchers

cooling towers: elementary cooling thermodynamics and types

T4 Valves - flow control devices

types and applications

balancing valves

throttling characteristics

flow measurements

selection and applications

T5 Piping systems

balancing and commissioning

air venting

water treatment

vacuum breaking and air breaks

Range Statement

8) This relates to the unit as a whole providing the range of contexts and conditions to which the performance criteria apply. It allows for different work environments and situations that will affect performance.

This unit must be demonstrated in relation to commissioning two different hydronic systems for refrigeration and/or air conditioning systems.

Generic terms used throughout this Vocational Standard shall be regarded as part of the Range Statement in which competency is demonstrated. The definition of these and other terms that apply are given in Volume 2, Part 2.1.