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 designing complex control systems for heating ventilation air conditioning or refrigeration systems

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

KSEJA Complex HVACR control system design

Evidence shall show an understanding of complex HVACR control system design applying safe working practices and relevant Standards Codes and Regulations to an extent indicated by the following aspects

T Advanced HVACR control system design

Control diagrams

Australian Standard and nonstandard symbols as used in a variety of typical HVACR

control diagrams

electricelectronic control diagrams

electrical installation documents

pneumatic diagrams

DDC diagrams

controlselectrical power circuit interface

nomographs

extraction of specific information relating to the operation and control of plant from a variety of typical HVACR control diagrams

development of control diagrams to required standards given specific system operating parameters

Control design requirements

standard and statutory requirements

economy of operation energy management

the desired or most appropriate system operating logic for a specified HVACR system

appropriate mode of control for a specified HVACR system

control system type selection for specific applications with due to regard to plant size application operating environment available control power supply options economy and computability to existing or proposed plant and control system

components required to assemble and operate the control system of a specified HVACR system

T HVACR system energy conservation methods

HVAC system control

night cycle

optimum stopstart

purge cycles

chillerboilercooling tower sequencing

economy cycles based on temperature or enthalpy

supply air reset

condenser water temperature reset

electrical load control

power demand control

load limiting

load shedding

set point relaxation

ventilation cycles

T Building Management Systems

Functions of a BMS

autonomous Functions

input

output

general IO

installation management items

energy management

risk management

information processing

objectives

building running costs

smoke control as per AS part

BMS hardware

system architecture

communication devices

substations

PCs

interfaces with other systems

Input and output functions

digital inputsoutputs

digital output with status feedback

analogue inputoutput

sensors

alarms

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

Design complex control systems for heating ventilation air conditioning or refrigeration systems as described in and including

A

Developing outlines of alternative designs

B

Developing the design within the safety regulatory functional requirements and budget limitations

C

Documenting and presenting design effectively

D

Successfully negotiating design alteration requests

E

Obtaining approval for final design

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

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

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

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 designing complex control systems for heating ventilation air conditioning or refrigeration systems

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

UEENEEJ135A

Design control systems for refrigeration or heating ventilation air conditioning or systems