Cpcpwt3021a - Set out and Install Water Services

CPCPWT3021A - SET OUT AND INSTALL WATER SERVICES

CONSTRUCTION, PLUMBING AND SERVICE

INTEGRATED FRAMEWORK

TRAINING PACKAGE

CPC08

CPCPWT3021A

SET OUT AND INSTALL WATER SERVICES

LEARNING GUIDE

ACKNOWLEDGEMENTS

National Plumbing Services Training Advisory Group

Plumbing Industry Commission Victoria

© Commonwealth of Australia 2015

Construction and Property Services Industry Skills Council

PO Box 151

Belconnen ACT 2616

Tel: 02 6253 0002

This work is copyright, but permission is given to trainers and teachers to make copies and contextualise the resources for use within their own training organisation or in a workplace where training is being conducted. This permission does not extend to making copies for use outside the immediate training environment for which they are made, or the making of copies for hire or resale to third parties.

This work was first published in 2004 with the assistance of funding provided by the Commonwealth Government through the Australian National Training Authority (ANTA). The2015 publication has been updated to reflect changes to the national units of competency.

The views expressed in this work do not necessarily represent the views of the Commonwealth of Australia or CPSISC. In addition, the Commonwealth of Australia and CPSISC do not give warranty or accept any legal liability in relation to the content of this work.

The website addresses and other contact information provided in this publication were compiled in good faith and were correct at the time of printing.

The updating of these resources was completed by:

National Plumbing and Services Training Advisory Group, with funding and support provided by the Construction and Property Services Industry Skills Council (CPSISC):

This guide was developed in consultation with representatives of the Plumbing Industry by NPSTAG and CPSISC to support the implementation of the CPC08 Construction, Plumbing and Services Training Package.

Contents

What is this resource about?......

How do I use this resource?......

What do I have to do?......

Flexible Delivery......

Set out and install water services......

Unit Descriptor......

Element......

Performance Criteria......

How will I be assessed?......

Relationship to other units?......

What other resources will I need?......

Texts......

Web sites......

Video or audio cassettes......

Introduction......

The rough-in......

Prepare for work......

Planning......

Work notices......

Plans and specifications......

Quality assurance and WHS

Co-operation with others......

Determine installation requirements......

Quantity and type of materials......

Approved materials......

Materials for water services......

Copper......

Insulation......

Pipe used for Non potable water supply......

Polyethylene (PE)......

Cross-linked polyethylene (PE-X)......

Unplasticised polyvinyl chloride (PVC-U)......

Chlorinated polyvinyl chloride (CPVC)......

Polybutylene (PB)......

Polypropylene (PP-R)......

Other materials......

Equivalent pipe sizes......

Example......

Example......

Selection of suitable materials......

Ordering and checking the delivery......

Tools and equipment......

Hand and mechanical excavation equipment......

Hand and power tools......

Scaffolding......

Bending tools......

Flaring tools and flared joints......

Crimping tools......

Silver brazing equipment......

Tube expanders......

Branch pullers......

Crox tool......

Tube and pipe cutters......

Elevated work platforms......

Set out piping and connection points......

Pipework design......

Design of Non-Potable systems......

Sizing pipework......

Trenches......

Supports......

Copper pipes......

Installation and pipe jointing......

Pipe joints......

Gate valves......

Ball valves......

Stop taps......

Pressure limiting valves......

Tempering valve......

Non potable valves taps and water meters......

Copper tubing......

Manual lifting and handling equipment......

Testing your installation......

Testing and commissioning non potable water supply......

Clean up......

Worksheet......

Practical application......

Assessment checklist......

Worksheet......

© Commonwealth of Australia 2015 1

CPCPWT3021A - SET OUT AND INSTALL WATER SERVICES

What is this resource about?

Welcome to CPCPWT3021A – Set out and install water services. This resource will help you gain the skills and knowledge necessary to demonstrate competence in this unit.

How do I use this resource?

This resource is divided into four main sections:

• A learning unit, which contains background information on CPCPWT3021A – Set out and install water services
• Worksheets, which prepare you for the practical application
• Practical application, which allows you to experience setting out and install water piping systems
• Assessment materials, which help you demonstrate competency.

To complete this unit of competence you will need to:

• read the information contained in the learning unit
• complete the worksheets as instructed
• have your answers checked by your trainer or supervisor
• work with your trainer or supervisor to practise setting out and install water piping systems
• read the assessment checklist together with the assessment sheets
• complete the assessment.

Learning Resources are not intended to be the only source of information nor are they intended to be an exhaustive form of instruction.

What do I have to do?

To demonstrate competence in this unit you will be required to show the level of skills and knowledge for each of the elements involved in setting out and installing water piping systems:

• Prepare for work
• Determine installation requirements
• Install and test system
• Clean up.

If you are unsure of the meaning of these elements you should read the performance criteria on the following page.

Flexible Delivery

The Trainer or Supervisor may adapt and deliver this Learning Resource to suit people from diverse backgrounds to meet equity principles and conform to Legislative policies.

CPCPWT3021A / Set out and install water services
Unit Descriptor / This unit of competency specifies the outcomes required to install heated, cold and tempered water services from the water supply to the fixture or points of discharge and storage.
Element / Performance Criteria
Elements define the essential outcomes of a unit of competency. / Performance criteria describe the required performance needed to demonstrate achievement of the element. Where bold italicised text is used, further information is detailed in the required skills and knowledge and/or the range statement. Assessment of performance is to be consistent with the evidence guide.
1Prepare for work / 1.1Drawings, plans and specifications are obtained
1.2Work health and safety (WHS) andenvironmental requirements associated with setting out and installing water services are adhered to throughout the work
1.3Quality assurance requirements are identified and adhered to according to workplace requirements
1.4Tasks are planned and sequenced in conjunction with others involved in or affected by the work and statutory and regulatory authorities’ requirements
1.5Tools and equipmentfor setting out and installing water piping systems, including personal protective equipment, are selected and checked for serviceability
1.6Work area is prepared to support efficient setting out and installation of water services
2Identify installation requirements / 2.1Quantity and type of materials required are calculated from drawings and specifications or site inspection and comply with relevant Australian standards and other information
2.2Materialsand equipment are identified, ordered and collected according to workplace procedures
2.3Materials and equipment are checked for compliance with relevant Australian standards, docket and order form, and for acceptable condition
2.4Sustainability principles and concepts are observed when preparing for and undertaking work process
3Install and test pipe system / 3.1Pipelines and fixture connection points are set out according to drawings and specifications or job instructions, with consideration given to the location of existing services
3.2Trenches are excavated according to relevant Australian standards and authorities' requirements
3.3Installation of supports and clips are checked for compliance with job specification, authorities' requirements and manufacturer recommendations
3.4Pipes are installed and jointed according to job specifications, design layout and relevant Australian standards without damage or distortion to pipework, or surrounding environment and other services
3.5Installation to point of discharge is tested to comply with relevant Australian standards and authorities' requirements, and adjusted
4Clean up / 4.1Work area is cleared and materials disposed of, reused or recycled according to legislation, regulations, codes of practice and job specification
4.2Tools and equipment are cleaned, checked, maintained and stored according to manufacturer recommendations and workplace procedures
4.3Documentation is completed according to workplace requirements
Required knowledge / Required knowledge for this unit is:

• characteristics and application of different pipes and fittings, including fixing and joining techniques and methods
• job safety analysis (JSA) and safe work method statements (SWMS)
• levelling and alignment processes
• process of installing water piping systems
• processes for accessing information and for calculating material requirements
• properties of water, including pressure and flow rates
• regulations and requirements for non-drinkable water installations
• relevant statutory requirements related to installing water piping systems
• SI system of measurements
• Australian standards applicable to the installation
• use of test equipment and procedures

• workplace and equipment safety requirements

An up to date version of the ‘Unit Descriptor’ may be located on the Australian Government web site training.gov.au

How will I be assessed?

Your trainer or supervisor will decide with you how you will be assessed. Your assessment activity may include completion of the student worksheet and practical task selected by your trainer or supervisor. Your assessment should allow you to demonstrate all the skills and knowledge required to set out and install water services.

This unit may be assessed in conjunction with other units of competence. Your trainer or supervisor will tell you if you are to be assessed this way.

Are there any pre-requisites?

Prior to commencing CPCPWT3021A – Set out and install water services you must have successfully completed the following prerequisites:

• CPCPCM2043A - Carry out WHS requirements

It is also recommended that prior to commencing CPCPWT3021A – Set out and install water services you should have successfully completed the following competencies:

• RIICCM210A - Install trench support
• CPCPCM2052A - Weld using oxyacetylene equipment

Project work may also group prerequisite and or co-requisite competencies together to carry out such projects. It is recommended that the following competencies are grouped with this unit of competency:

• CPCPWT3022A – Install and adjust water service controls and devices.

What other resources will I need?

To assist you the following resources have been suggested and should be available to you to do this competency:

Texts

• AS/NZS3500 – Plumbing and drainage
• Plumbing code of Australia
• State or Territory regulations may override this Learning Guide

Web sites

Video or audio cassettes

Introduction

In this unit you will look at setting out and installing water piping systems.

This unit could typically apply to someone involved in the planning and installation of pipework for hot and cold water supply from the water service to the point of discharge, which is commonly known as the ‘rough-in’.

The rough-in

The rough-in of hot and cold pipework must be done at a time when access for the concealment of pipes and tap sets is still possible.

• At the framing stage of building construction on a brick veneer dwelling, hot and cold water supply pipes may be concealed in the walls and or under floors of buildings.
• Prior to the concrete pour, water pipes may be trenched under concrete slab floors and tails for the connection of fixtures brought up through the slab. Later when the walls are up, this type of rough-in is completed.
• The pipeline from the water meter to the building may also be considered as part of the rough-in.
• The installation of in wall combinations lugged elbows and provision of connection points for the hot water service are all part of the rough-in.

Prepare for work

Planning

Planning is essential for a good quality job that ensures the safety of yourself and other workers. Planning also means that the job is more likely to be completed on time and without problems, which may prove costly to repair. Planning involves getting the right information about the job and completing and submitting all the required documents to the relevant authorities.

Work notices

• Water authority consent and road opening permits are part of the water main tapping. See unit CPCPWT3029A – Install water pipe services.
• This unit assumes that the water main tapping is complete and the water meter is installed on the property.
• This unit deals with the water service between the water meter and the tap outlets; work notices and consent appropriate to the water main tapping should already be completed.

Note
See Unit CPCPWT3029A – install water pipe systems for details of work notices that relate to the tapping of a water main.

Plans and specifications

You need to obtain the plans or specification from the supervisor or builder in order to know the type and location of the sanitary fixtures. The type of information that you need to note from these plans are:

• the scale the plans are drawn in
• the position of the building on the site
• the type of construction, brick veneer, weatherboard, solid brick, slab on ground, strip footings, etc
• the proposed layout and design of the building
• the location of the wet areas
• the type of fixtures
• the position of all fixtures and taps
• the location and type of hot water service
• the position of driveways and paths
• the position of other services
• the location of walls, windows and doors (slab rough-in).

All this information can impact upon where and how you run the water service pipework. You will need to consider this information then plan a water service design that is simple, economical and convenient. This design must comply with the AS/NZS3500 standards and with any local water supply authority’s rules with regards to pipe sizes.

Quality assurance and WHS

Revision of CPCPCM2043A – Carry out WHS requirements, before commencing this unit is advisable.

Your company’s quality assurance requirements must be followed in order to avoid overlooking a part of the work to be done or failing to test your work on completion.

By having knowledge of WHS state or territory legislative requirements you can lessen the risks of injuries to yourselves and other people. The requirements you may be required to observe the following requirements.

• Protective clothing and equipment.
• Safe use of tools and equipment.
• Workplace environment and safety.
• Handling of materials.
• Hazard control.
• Limited height scaffolds and elevating work platforms.
• Hazardous materials.

In accordance with WHS requirements, special care must be taken when welding or brazing the materials that may be selected for water piping systems. By using the correct PPE and avoiding placing any part of the body directly beneath the joints being welded or brazed, you can escape injury to the eyes or skin.

Personal protective equipment you may need to use when installing water piping systems could include:

• overalls
• safety boots
• gloves
• safety glasses or goggles
• hardhat
• ear plugs or ear muffs
• sunhat and sunscreen.

Co-operation with others

The construction of buildings requires the co-ordination of activities between the workers involved. You need to be in close communication with the job supervisor or builder in order to carry out your work at the proper times during the progress of construction.

It will be easier to run and conceal the water service pipework (rough-in) if the house frame is complete and there is no wallboard plasterboard.

Installation of pipework at the appropriate time of the building construction can:

• avoid damaging walls, ceilings, floors, etc which may cause conflict with other tradesmen and or increased cost
• allow the correct fixing and installation of pipework, avoiding possibly noisy pipework and water hammer
• improve the visible appearance of the installation
• speed up installation time and reduces costs
• increase the overall quality of the installation.

Worksheet
Now go to the Worksheet and answer Questions 1 – 4.

Determine installation requirements

Quantity and type of materials

Before you begin to install the water piping system, the quantity and type of material required needs to be calculated from the plans or specifications. You may need to make a site inspection before you can decide what the materials list should contain.

Approved materials

When selecting materials for a water piping system, you need to know the range of approved materials that are available and where you may use them. You need to determine the required size of pipes and fittings to achieve adequate flow rates.

Note
The type of materials selected must comply with
AS/NZS3500.1 and AS/NZS3500.4

The property service is defined as the section of the water service between the main and the meter. Some materials are not permitted for use in this section of the water service.

Property service identification

Materials for water services

The most common materials for use in the property service section of a water service are copper and polyethylene.

There are many materials listed in AS/NZS3500.1, details suitable materials and limitations on their use for pipe-work installed upstream of the property service section of the water service.

Copper

Copper tubing for water supply purposes is manufactured to AS1432 and is marked at 0.5 m intervals along the tube with:

• the manufacturer’s trademark
• the standards mark
• the Australian Standards number
• the nominal size and thickness type.

Annealed copper tube – Available in 18m coils

Copper tube for water piping is available in four thickness types, listed here from thickest to thinnest.

• Type A – green.
• Type B – blue.
• Type C – red.
• Type D – black.

Hard drawn copper tube available in 6m lengths

Network utility operators usually specify Type A and B copper tubes be used between the main and meter (property service).

After the water meter, Type C and D copper tube may be used, however, any limitations in AS/NZS3500.1 Clause 2.4 & Appendix B would apply.