Assessor Resource

CPCPGS4003A
Install, commission and service Type B gas appliances

Assessment tool

Version 1.0
Issue Date: March 2024


This unit of competency supports the needs of experienced plumbers with a responsibility for interpreting and applying pre-existing design specifications; gaining approvals from authorities; preparing for work; installing gas system components and associated electrical or electronic components and controls; testing, adjusting, commissioning and servicing Type B gas appliances; and completing work finalisation processes, including formal recording and reporting requirements.

This unit of competency specifies the outcomes required to install, commission and service Type B gas appliances, from the gas isolation valve and electrical isolation switch to the flue spigot on the appliance, in accordance with current and relevant standards.

Before satisfying this unit, the candidate requires a restricted electrical licence or equivalent to connect and disconnect appliances in accordance with the requirements of the particular State or Territory.

You may want to include more information here about the target group and the purpose of the assessments (eg formative, summative, recognition)

Prerequisites

Nil


Co-Requisites

Nil


Employability Skills

This unit contains employability skills.




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.

The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.

Overview of assessment

This unit of competency could be assessed in the workplace or a close simulation of the workplace environment providing that simulated or project-based assessment techniques fully replicate plumbing and services workplace conditions, materials, activities, responsibilities and procedures.

It may be assessed on its own or as part of an integrated assessment activity involving planning and conducting the installation of at least one significant Type B gas appliance.

Critical aspects for assessment and evidence required to demonstrate competency in this unit

A person who demonstrates competency in this unit must be able to provide evidence of:

locating interpreting and applying relevant information, standards and specifications to determine requirements of and maintain Type B appliances

applying safety requirements throughout the work sequence, including:

using personal protective clothing and equipment

isolating appliances from gas and electrical services

planning and conducting installation of at least one significant Type B appliance, which includes:

obtaining required authorities

planning work

installing gas, ventilation and electrical componentry

installing electrical control system

completing all required tests and sequences

commissioning the appliance

completing all required documentation

communicating and working effectively and safely with others.

Context of and specific resources for assessment

This competency is to be assessed using standard and authorised work practices, safety requirements and environmental constraints.

Assessment of essential underpinning knowledge will usually be conducted in an off-site context.

Assessment is to comply with relevant regulatory or Australian standards' requirements.

Resource implications for assessment include:

an induction procedure and requirement

realistic tasks or simulated tasks covering the minimum task requirements

relevant specifications and work instructions

tools and equipment appropriate to applying safe work practices

support materials appropriate to activity

workplace instructions relating to safe working practices and addressing hazards and emergencies

material safety data sheets

research resources, including industry related systems information.

Reasonable adjustments for people with disabilities must be made to assessment processes where required. This could include access to modified equipment and other physical resources, and the provision of appropriate assessment support.

Method of assessment

Assessment methods must:

satisfy the endorsed Assessment Guidelines of the Construction, Plumbing and Services Training Package

include direct observation of tasks in real or simulated work conditions, with questioning to confirm the ability to consistently identify and correctly interpret the essential underpinning knowledge required for practical application

reinforce the integration of employability skills with workplace tasks and job roles

confirm that competency is verified and able to be transferred to other circumstances and environments.

Validity and sufficiency of evidence requires that:

competency will need to be demonstrated over a period of time reflecting the scope of the role and the practical requirements of the workplace

where the assessment is part of a structured learning experience the evidence collected must relate to a number of performances assessed at different points in time and separated by further learning and practice, with a decision on competency only taken at the point when the assessor has complete confidence in the person's demonstrated ability and applied knowledge

all assessment that is part of a structured learning experience must include a combination of direct, indirect and supplementary evidence.

Assessment processes and techniques should as far as is practical take into account the language, literacy and numeracy capacity of the candidate in relation to the competency being assessed.

Supplementary evidence of competency may be obtained from relevant authenticated documentation from third parties, such as existing supervisors, team leaders or specialist training staff.


Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assingnment, 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.

Required skills

Required skills for this unit are:

communication skills to:

access information

determine requirements

enable clear and direct communication, using questioning to identify and confirm requirements, share information, listen and understand

follow instructions

liaise with designer and authorities

plan work with others

read and interpret:

defect reports

design specification

documentation from a variety of sources

operational records

use language and concepts appropriate to cultural differences

use and interpret non-verbal communication, such as hand signals

written skills to:

complete workplace documentation

record test results

submit work notices

following safe work procedures relating to the installation, commissioning and servicing of Type B appliances

identifying and accurately reporting to appropriate personnel any faults in tools, equipment or materials

interpreting information, including:

charts and hand drawings

diagrams or sketches and graphics

instructions issued by authorised organisational or external personnel

job drawings

manufacturer specifications and instructions

maps

material safety data sheets (MSDS)

memos

organisation work specifications and requirements

plans, diagrams and specifications

signage

verbal or written and graphical instructions

work bulletins

work schedules

numeracy skills to interpret and apply mathematical information

technological skills to:

access and understand site-specific instructions in a variety of media

use mobile communication technology.

Required knowledge

Required knowledge for this unit is:

Australian standards, including the use of tables:

AS3814 (AG501) Industrial and commercial gas appliances

AS5601 (AG601) Gas installations

relevant aspects of AS1375 Industrial fuel fired appliances, AS2593 Boilers - unattended and limited attendance and AS/NZS3000 Electrical installations

basic electrical theory, including:

Ohm's law

current flow

conduction

insulation

ignition systems

characteristics of fuses, circuit breakers, residual current devices and earthing systems

characteristics of electromotive force (EMF)

electrical safety, including isolation procedures and requisite precautions

electrical terminology and conventional symbols

flue gas analysis techniques and processes

gas terminology and conventional symbols

gas safety, including:

isolation procedures

combustion characteristics and effects

job safety analysis (JSA) and safe work method statements (SWMS)

programmable logic controller (PLC) systems, including remedial programming techniques

purging requirements, techniques and critical calculation processes

SI system of units

sources of information and processes for the calculation of material requirements

types and properties of fuel gas, including pressure and flow rates

types, characteristics, uses and limitations of electrical and electronic componentry and control systems

types, characteristics, uses and limitations of Type B gas appliance components

ventilation techniques and calculation processes

workplace and equipment safety requirements.

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

Design specification may include:

air controls

combustion air blowers

flame safe guards

gas pressure regulation

gas valve trains

manual shut-off valves

markings and instructions

materials

over-pressure protection systems

process controls

safety shut-off valve systems.

Type B gas appliances:

include those above 10 megajoules (MJ) with no Australian Gas Association (AGA) approval scheme and no specific standards to cover type and scope of operation

Type B appliances may use:

combination fuels

liquefied petroleum gas

natural gas

simulated natural gas

tempered liquefied petroleum gas

town gas

with special requirements for design and operation, including:

after burners - process

air gas mixing machines and mixing blowers

atmosphere generators and special atmospheres

direct gas fired air heaters

high input gas fired appliances

incinerators and generators

multi-fuel firing systems

ovens - direct fired

smoke ovens - direct fired

stationary gas engines and turbines

steam and heated water boilers

water heaters

Type B appliance operation specifications will include:

flame establishment periods

interlocks

operation of gas appliance and burners

operational sequences

start gas rates

planning installation of a Type B gas appliance will include determination of site suitability and confirmation of the appropriateness of:

electrical supply

gas supply and sizing

proposed appliance security and lighting measures

proposed component handling and positioning measures

proposed foundation and supports

commissioning procedure for a Type B appliance, including:

preliminary inspection

activation run without fuel

activation run with fuel

operation and completion stages.

Regulatory and code of practice requirements include:

statutory and regulatory authority requirements that may include:

statutory plumbing authority

statutory gasfitting authority

state or territory and local statutory regulatory authority and legislative requirements, particularly those pertaining to:

building codes

OHS and environmental requirements

plumbing and gasfitting authority regulations

environmental regulatory requirements may include:

air pollution

clean-up protection

waste management

relevant Australian standards, including:

AS1375 Industrial fuel fired appliances

AS2593 Boilers - unattended and limited attendance

AS/NZS3000 Electrical installations

AS/NZS4836 Safe working on low-voltage electrical installations

AS5601 (AG601) Gas installations

AS3814 (AG501) Industrial and commercial gas appliances.

Safety (OHS) is to be in accordance with commonwealth, state and territory legislation and regulations and may include:

handling of materials, including hazardous materials and substances

hazard control

personal protective clothing and equipment prescribed under legislation, regulations and workplace policies and practices

safe operating procedures, including recognising and preventing hazards associated with:

electrical components and safety

gas fires and explosions

service lines

surrounding structures and facilities

trip hazards

use of tools and equipment

work site visitors and the public

working at heights

working in proximity to others

use of firefighting equipment

use of first aid equipment

workplace environment and safety.

Tools and equipment include:

hand tools, such as wrenches and spanners

measuring equipment

power tools

testing equipment and instruments, including:

manometer

multi-meter

dual probe voltage tester

flue gas analysis equipment

hand pump pressure kit

Pitot tube

megohmmeter

power point tester

neon tester

volt stick

lifting and load shifting equipment, including:

hand trolleys

rollers

forklifts

chain blocks

hoists and jacks.

Quality assurance requirements may include:

Australian Gas Authority (AGA) requirements

Environment Protection Authority

internal company quality assurance policy and risk management strategy

International Standards Organisation

site safety plan

workplace operations and procedures.

Valve trains include:

flow and ratio controls

gas pressure regulators and controllers

manual isolation valves

safety shut-offs.

Burners include:

atmospheric

nozzle

oxygen enhanced

packed power

pre-mix.

Testing and servicing of Type B gas appliances will require:

use of a hand-held programmer to monitor circuit conditions and to edit program (to make minor changes)

materials that comply with appropriate standards for the maintenance of Type B gas appliances.

Operational parameters of individual components include:

air flows

all safety and operating controls

combustion conditions

gas rates

purge times.

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
Design specification for Type B gas appliance to be installed and commissioned is accessed, analysed, interpreted and confirmed through a detailed site inspection. 
Design specification matters requiring clarification are resolved through liaison with designer and gas authorities. 
Formal authority to proceed with installation and commissioning is obtained before commencing work, in accordance with regulatory and code of practice requirements. 
Regulatory and code of practice recording and reporting requirements are satisfied at appropriate times throughout the work sequence. 
Safety (OHS) requirements associated with the workplace environment and installing, commissioning and servicing Type B gas appliances are accessed, interpreted and followed throughout the work. 
Gas system components, electrical or electronic components and controls, and other required installation materials are identified from the design specification and obtained for the work. 
Component specifications and manufacturer servicing manuals are obtained for planned work activity. 
Tasks are planned in conjunction with others involved in or affected by the work. 
Tools and equipment, including personal protective equipment, are selected consistent with installation, commissioning and servicing needs and checked for serviceability, and any faults are rectified or reported. 
Quality assurance requirements for the work sequences are identified and followed. 
Work area is prepared to support efficient installation, commissioning and servicing of Type B gas appliance. 
Gas system and electrical safety checks and isolation procedures are completed and recorded to manufacturer and other authority requirements before commencing work. 
Appliance components, including valve trains, burners and associated pipework and flue systems, are installed in accordance with approved design specifications. 
Ventilation systems are installed in accordance with approved design specifications. 
Electrical components, including terminations, are installed in accordance with design specifications and regulatory requirements. 
Electrical wiring and wiring enclosures are installed in accordance with design specifications and regulatory requirements. 
Installations are visually inspected at each stage of the work to ensure compliance with specifications and absence of damaged or faulty equipment and materials. 
Testing and servicing equipment appropriate to the requirement is selected, checked and prepared for use. 
Gas and electrical safety checks and isolation procedures, including purging, are completed and recorded to manufacturer and other authority requirements before testing and commissioning are commenced. 
Operational parameters of individual components are tested and adjusted to conform to specifications. 
Appliance operations are tested first without and then with fuel, adjustments are completed as necessary and results recorded in accordance with approving authority requirements. 
Flue gases are analysed in accordance with recognised industry practice and other authority requirements. 
Nature and possible cause of faults or out of specification performance are identified from defect reports or operational records. 
Electrical and gas safety checks and isolation procedures are completed and recorded to manufacturer and other authority requirements before servicing work is commenced. 
Plans and diagrams are read and correctly interpreted to identify potential gas system and electrical fault pathways and locations. 
Appropriate testing techniques, procedures and equipment are selected and applied to diagnose system faults or discrepancies. 
Cause of fault or out of specification performance is identified and confirmed. 
Options for correction are thoroughly analysed and most appropriate corrective action is selected. 
Repair, replacement or adjustment is made in accordance with manufacturer specifications or service manuals. 
Appliance is assessed to ensure compliance with relevant standards and manufacturer specifications prior to recommissioning and returning to service. 
Work area is cleared and materials disposed of or recycled in accordance with federal, state and territory legislation and workplace procedures. 
Tools and equipment are cleaned, checked, serviced and stored in accordance with manufacturer recommendations and workplace procedures. 
Information is accessed and documentation completed in accordance with workplace requirements. 

Forms

Assessment Cover Sheet

CPCPGS4003A - Install, commission and service Type B gas appliances
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Assessment Record Sheet

CPCPGS4003A - Install, commission and service Type B gas appliances

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

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