150824- hydraulic specification rev...

HYDRAULIC SERVICES SPECIFICATION - FOR TENDER

MONTASSORI ELS - BLOCK 21, SECTION 443, KAMBAH ACT

Sellick Consultants ISSUE A – ISSUED FOR TENDER JOB NO.: 150824 of 45

HYDRAULIC SERVICES SPECIFICATION ISSUED FOR TENDER REV A

DOCUMENT PREPARED BY:

Unit 122, Level 1, Mode 3 24 Lonsdale St BRADDON ACT 2612 Telephone: (02) 6201 0200 Facsimile: (02) 6247 2203 PROJECT MONTASSORI EARLY LEARNING CENTRE

BLOCK 21, SECTION 443, KINGSTON ACT

CLIENT CCJ Architects

SELLICK CONSULTANTS PROJECT NUMBER 150824 DATE: April 2016

PREPARED BY: I.Hamilton




SECTION 1: AMENDMENTS

Issue

Rev. Descriptions Date

A

Issued For Tender

14th April 2015



TABLE OF CONTENTS


SECTION 2: TABLE OF CONTENTS

SECTION 1: AMENDMENTS ............................................................................................................. 2

SECTION 2: TABLE OF CONTENTS ............................................................................................... 3

SECTION 3: PRELIMINARIES .......................................................................................................... 7

3.1 GENERALLY ................................................................................................................................ 7

3.2 DEFINITIONS .............................................................................................................................. 7

3.3 SCOPE OF WORK ....................................................................................................................... 7

3.4 SITE VISIT .................................................................................................................................... 8

3.5 WORK BY OTHER TRADES ........................................................................................................ 8

3.6 CERTIFICATION OF WORKS ..................................................................................................... 9

3.7 AUTHORITIES ........................................................................................................................... 10

3.8 STANDARDS .............................................................................................................................. 10

3.9 DESIGN, DOCUMENTATION AND APPROVALS ................................................................... 11

3.10 OPERATION AND MAINTENANCE MANUALS ...................................................................... 11

3.11 COMMISSIONING ..................................................................................................................... 12

3.12 TRAINING .................................................................................................................................. 13

3.13 12 MONTH DEFECTS AND MAINTENANCE .......................................................................... 13

3.14 WARRANTIES ............................................................................................................................ 14

3.15 CO-ORDINATION...................................................................................................................... 14

3.16 EXISTING SERVICES ................................................................................................................ 14

3.17 PROVISION OF MATERIALS .................................................................................................... 15

3.18 TRADE NAME REFERENCES ................................................................................................... 15

3.19 SAMPLES: .................................................................................................................................. 15

3.20 TESTING GENERALLY AND STERILISATION OF SYSTEMS ................................................. 15

3.21 SOUND INSULATION OF SERVICES ...................................................................................... 15

3.22 PIPE AND VALVE IDENTIFICATION ...................................................................................... 16

3.23 FIRE STOPPING / FIRE STOP COLLARS ................................................................................ 16

SECTION 4: EXCAVATION AND PIPE WORK REQUIREMENTS .......................................... 17

4.1 EXCAVATION ............................................................................................................................ 17

4.2 BORING ..................................................................................................................................... 18

4.3 EXISTING SERVICES ................................................................................................................ 18

4.4 EXCAVATION IN EXISTING PAVEMENT AND ROADWAYS ................................................. 18

4.5 MAKING GOOD ........................................................................................................................ 18

4.6 PIPE LAYING ............................................................................................................................. 18

4.7 BEDDING AND BACKFILLING - UNDERGROUND PIPE INSTALLATION ......................... 20

4.8 BEDDING FITTINGS ................................................................................................................. 23

4.9 CONCRETE ENCASING ............................................................................................................ 23



TABLE OF CONTENTS


4.10 DRAINS BENEATH BUILDING ................................................................................................ 23

4.11 ABOVE GROUND PIPEWORK INSTALLATION ...................................................................... 23

4.12 ACCESSIBILITY ......................................................................................................................... 23

4.13 CAPPING OFF .......................................................................................................................... 24

4.14 CLEANING OUT ........................................................................................................................ 24

4.15 CLEAR-OUTS ............................................................................................................................. 24

4.16 WORKMANSHIP GENERALLY ................................................................................................. 24

SECTION 5: MATERIALS ................................................................................................................ 26

5.1 GENERALLY .............................................................................................................................. 26

5.2 REJECTION OF UNSATISFACTORY MATERIALS .................................................................. 26

5.3 COPPER TUBES AND FITTINGS ............................................................................................. 26

5.4 UNPLASTICISED POLYVINYL CHLORIDE PIPES (uPVC) .................................................... 27

5.5 CROSS LINKED POLYETHYLENE PIPE & FITTINGS (PE-X) ............................................... 27

5.6 POLYPROPYLENE PIPE AND FITTINGS (HDPE).................................................................. 27

5.7 MATERIALS FOR SUB-SOIL DRAINAGE ................................................................................ 27

5.8 FLOOR WASTES ........................................................................................................................ 28

5.9 FLANGES ................................................................................................................................... 28

5.10 FITTINGS GENERALLY ............................................................................................................ 28

5.11 VALVES: GENERAL .................................................................................................................. 28

5.12 GATE VALVES ........................................................................................................................... 29

5.13 STOP VALVES ............................................................................................................................ 29

5.14 FITTINGS GENERALLY ............................................................................................................ 30

5.15 STOP VALVES ............................................................................................................................ 30

5.16 PRESSURE LIMITING VALVES ................................................................................................ 30

5.17 TEMPERING VALVES ............................................................................................................... 30

5.18 THERMOSTATIC MIXING VALVES ......................................................................................... 30

5.19 BACKFLOW PREVENTION ...................................................................................................... 30

5.20 PIPING INSULATION ............................................................................................................... 30

5.21 VALVES BOXES ......................................................................................................................... 31

5.22 EXPANSION JOINTS ................................................................................................................. 31

SECTION 6: SEWER DRAINAGE ................................................................................................... 32

6.1 GENERALLY .............................................................................................................................. 32

6.2 PIPEWORK ................................................................................................................................ 32

6.3 VENTS ........................................................................................................................................ 32

6.4 INSPECTION OPENINGS ......................................................................................................... 32

6.5 TRAPS ........................................................................................................................................ 32

6.6 TUNDISHES ............................................................................................................................... 32

6.7 OVERFLOW RELIEF GULLY ................................................................................................... 33



TABLE OF CONTENTS


SECTION 7: STORMWATER PLUMBING AND DRAINAGE ................................................... 34

7.1 GENERALLY .............................................................................................................................. 34

7.2 PIPEWORK ................................................................................................................................ 34

7.3 PRECAST STORMWATER PITS & MANHOLES ...................................................................... 34

7.4 COVERS AND GRATES ............................................................................................................. 34

7.5 LADDERS & STEP IRONS ........................................................................................................ 34

7.6 SUB SOIL DRAINS ..................................................................................................................... 35

7.8 EDUCATIONAL RAINWATER REUSE TANK .......................................................................... 35

7.9 WSUD, STORMWATER DETENTION AND STORMWATER QUALITY .................................. 35

SECTION 8: SANITARY PLUMBING ............................................................................................ 36

8.1 SCOPE OF WORK ..................................................................................................................... 36

8.2 PIPEWORK ................................................................................................................................ 36

8.3 FIRE STOPPING / FIRE STOP COLLARS ................................................................................ 36

8.4 VENT PIPES ............................................................................................................................... 36

8.5 INSPECTION OPENINGS & GATES ........................................................................................ 36

8.6 EXPANSION JOINTS ................................................................................................................. 36

8.7 TESTING .................................................................................................................................... 36

8.8 ACOUSTIC TREATMENT .......................................................................................................... 36

SECTION 9: DOMESTIC COLD WATER SERVICES ................................................................. 37

9.1 GENERALLY .............................................................................................................................. 37

9.2 BACKFLOW PREVENTION ...................................................................................................... 38

9.3 AUTHORITY COLD WATER METER ....................................................................................... 38

SECTION 10: DOMESTIC HOT WATER ..................................................................................... 39

10.1 GENERALLY .............................................................................................................................. 39

10.2 TESTING .................................................................................................................................... 39

10.3 VALVES (IN-LINE)..................................................................................................................... 39

10.4 CONNECTION TO FIXTURES .................................................................................................. 39

10.5 EXPANSION AND CONTRACTION .......................................................................................... 39

10.6 NOISE & VIBRATION SUPPRESSION ..................................................................................... 39

10.7 TAPWARE .................................................................................................................................. 39

10.8 TEMPERATURE CONTROL VALVES ....................................................................................... 39

10.9 HOT WATER GENERATION ..................................................................................................... 40

10.10 THERMAL INSULATION ....................................................................................................... 40

SECTION 11: FIRE HOSE REEL SERVICE ................................................................................ 41

11.1 GENERALLY .............................................................................................................................. 41

11.2 MATERIALS ............................................................................................................................... 41

11.3 FIRE HOSE REELS .................................................................................................................... 41

11.4 PIPE SUPPORTS ....................................................................................................................... 41



TABLE OF CONTENTS


11.5 VALVES ...................................................................................................................................... 41

11.6 NOISE & VIBRATION SUPPRESSION ..................................................................................... 41

11.7 PAINTING & IDENTIFICATION .............................................................................................. 41

11.8 TESTING .................................................................................................................................... 41

11.9 FLUSHING & CLEANING OF FIRE HOSE REEL SERVICES ................................................ 41

SECTION 12: NATURAL GAS ....................................................................................................... 42

12.1 SCOPE ........................................................................................................................................ 42

12.2 GAS METERING ........................................................................................................................ 42

12.3 UNDERGROUND INSTALLATION ........................................................................................... 42

12.4 VALVE BOXES ........................................................................................................................... 42

12.5 PIPING ....................................................................................................................................... 43

12.6 STANDARDS .............................................................................................................................. 43

SECTION 13: SANITARY FIXTURES, FITTINGS AND TAPWARE ...................................... 44

SECTION 14: TENDER SCHEDULES .......................................................................................... 45

14.1 TENDER BREAK-UP ................................................................................................................. 45



PRELIMINARIES SECTION


SECTION 3: PRELIMINARIES

3.1 GENERALLY

This document relates to the Hydraulic Services required for the project and is bound by the invitation to tender, tender conditions and conditions of contract prepared and issued by Project Manager. This Specification shall be read in conjunction with the design drawings and relevant standards. Any conflict in document/drawing information shall be reported to Project Manager, during the tender period. If a conflict is not advised during the tender period, it will be assumed that the more expensive option has been allowed for.

The work covered in this specification shall outline the requirements for the Contract.

The Hydraulic Contractor when entering into the conditions of this contract shall be fully aware and in acceptance of the full responsibility for the coordination, supply, installation, testing, commissioning, quality assurance, and maintenance during defects liability period for the complete new hydraulic services systems required in the building.

This specification and associated design drawings are indicative and a guideline for pricing purposes only, and it shall be the full responsibility of the Hydraulic Contractor to allow for full compliance of all required hydraulic services systems in the building, inclusive of all necessary and required system components, equipment, plant, accessories and interface with other building services systems in accordance with all relevant Australian Standards, BCA and Authority requirements.

It is the Hydraulics Contractor’s responsibility to carry out all works nominated in this specification.

3.2 DEFINITIONS

The “Project Manager” shall be CCJ Architects or the person/company as nominated by CCJ Architects as their representative.

The “Contractor” shall be the building company responsible for the overall supervision of the construction works.

Hydraulics Contractor – Hydraulics Contractor carrying out the hydraulic services installation under this specification.

"Approved" shall mean approved in writing by the Project Manager or by Regulation or Ruling by the relevant Local Authority.

"Or equal" shall mean a material, product of component approved by the Project Manager, which is equivalent in performance and quality to and of cost not exceeding that specified.

3.3 SCOPE OF WORK

The extent of work covered by these documents includes obtaining all required authority approvals & permits where required, furnishing of all materials, plant, products, accessories, tools, equipment, services, scaffolding, ladders, transportation, supervision, labour, excavation, backfill, and subsequent maintenance and other items which may not be stated, but are necessary for the fabrication and completion of the plumbing and drainage installation as detailed in this specification and shown on the accompanying drawings, clauses and briefs.

Provide all manufactured items, materials, labour, cartage, tools, plant, appliances and fixings necessary for the proper execution of the works, together with all minor and incidental works.

The whole of the works shall comply with all the latest relevant Regulations and to all Local Authority requirements. The cost of any materials or equipment required to meet such regulations and requirements shall be included in the Tender whether specially shown or described in the documents or not.

In particular, compliance is required to:

1. Project Manager Project Brief;

2. The Fire Engineered Design Brief;





3. AS 1221 Fire Hose Reels;

4. AS 3500 National Plumbing Code;

5. AS 5601 Gas Installation Code;

6. National Construction Code of Australia;

7. Design Standards for Urban Infrastructure Works;

8. Standard Specification for Urban Infrastructure Works;

9. ICON Water Supply and Sewerage Standards;

All materials and equipment shall be the best of their respective kinds, complying with the relevant Standards and Local Codes of Practice. All materials and equipment shall be new and shall be delivered to the site with the maker’s label intact.

The extent of the hydraulics work covered in this Specification consists of the following:

1. Gas boost solar Hot Water Plant;

2. Stormwater plumbing and drainage;

3. Sanitary plumbing and drainage;

4. Tradewaste plumbing and drainage;

5. Rainwater downpipes;

6. Rainwater retention and reuse;

7. Subsoil drainage;

8. Domestic cold water;

9. Domestic hot water;

10. Fire hose reel service; and

11. Gas service.

3.4 SITE VISIT

Notwithstanding the exhibition of this document and the Plans to the Tenderer, each tenderer shall visit the site and acquire such information as is necessary for the purpose of this work and verify all dimensions relative to the work by actual measurements taken on site.

3.5 WORK BY OTHER TRADES

Some works and/or provisions associated with the Hydraulic Services shall be performed by

other trades or parties. Liaise with other trades to ensure that all requirements are provided as

required for the completeness and proper operation of the equipment or systems.

3.5.1 Contractor

1. Provide all penetrations as shown on architectural and structural drawings only. All

hydraulic pipe cast-ins and fire collars by Hydraulics Contractor;

2. All access panels, inspection openings and fire hose enclosure;

3. Cut all holes in finished surfaces, timber, cupboards, false ceilings, vanity units, shelves,

etc, as required by the Hydraulics Contractor;

4. Bollards and mechanical protection to pipework, stacks and equipment;

5. Supply and installation of waterproof membranes in all wet areas and roof areas;





6. Building management system monitoring various hydraulic components, including hot and

cold water meters, in accordance with the clients requirements;

7. All in-situ concrete structures and drains (grates and frames to be supplied and installed by

the Hydraulics Contractor) that form part of the structural or landscape slab; and

3.5.2 Electrical Work

Provision of temporary electrical power during construction. The Hydraulics Contractor shall be responsible for contacting the Electrical Contractor to coordinate the location that the temporary electrical power is required to be run to and for coordinating the time that the temporary electrical power is required.

Provision of permanent electrical power for various hydraulics components. The Hydraulics Contractor shall be responsible for contacting the Electrical Contractor to coordinate the location that the electrical power is required to be run to and for coordinating the time that the electrical power is to be connected to the hydraulics control panels. The power is required for the following:

1. Electrical supply to the domestic hot water heaters. This requires 2 of 10amp DGPO’s.

2. Electrical supply to rainwater reuse plant. 15amp 415V;

3. Electrical supply to the educational rainbank reuse pump.

4. Zip Hydroboil undersink boiling chilled unit in staff kitchen.

5. Temporary electrical power during construction.

Note the Hydraulic Contractor is to allow for all costs associated with the running of the electrical

supplies from the points of supply provided by the Electrical Contractor to all points of use

including the final terminations such as GPO’s, lockable isolation switches, power packs, etc as

well as for all connections to individual items of hydraulics equipment such as from control panels

to items of equipment etc.

3.5.3 Mechanical Work

The Hydraulics Contractor shall be responsible for contacting the Mechanical Contractor to

coordinate all interface works. In particular, Hydraulics Contractor shall be responsible for

coordinating the location that the floor wastes and tundishes are required. For the purposes of

Tender, the location of mechanical tundishes, condensate drains and floorwastes are indicative

only.

Condensate wastes from AC units to discharge via inwall tundishes with glass viewing panels.

3.5.4 Roof Installation Works

All gutters, gutter sumps, overflows, roof flashings and downpipe outlets to be by Roofing

Contractor. The Hydraulics Contractor shall be responsible for contacting the Roofing Contractor

to coordinate the location of downpipe outlets. Pipe flashings through roof is the hydraulic

contractors responsibility.

3.5.5 Irrigation Work

The hydraulics contractor shall provide and single isolation valve in the rainwater reuse area.

Extension from this point shall be the irrigation contractors responsibility.

3.6 CERTIFICATION OF WORKS

At the completion of the works and prior to the submission for final payment the Hydraulics Contractor shall make all necessary applications, pay all fees, and issue certificates indicating that the works comply with the current regulations and requirements of the relevant Authority.





Wherever applicable the relevant Authority shall issue the Certificate. Where this is not standard practice the Hydraulics Contractor shall provide a Certificate or Letter of Certification which will guarantee that the works comply with the relevant Authorities regulations, requirements and conditions.

3.7 AUTHORITIES

The whole of the work shall be carried out by or under the full supervision of a fully licensed Hydraulics Contractor in accordance with the drawings and specification, and to the satisfaction of Project Manager and to the Standards and Regulations of any authority having jurisdiction over the works, including but not limited, to those listed below: -

Environment and Sustainable Development (formerly ACT Planning Authority (ACTPLA)

National Capital Authority (NCA)

ICON Water

Building Private Certifier

Hydraulics Private Certifier

ACT Fire & Rescue

TAMS

Natural Gas Company

ACT Department of Health

National Construction Code of Australia

Workcover Authority of ACT

Pay the relevant authorities all fees and charges legally demandable including:

Inquiry fees

Commencement of work fees

Service connection fees

The Hydraulics Contractor shall submit evidence that:

1. Requirements of authorities relating to the work under the contract have been ascertained

prior to the commencement of the hydraulic services installation;

2. Fees to authorities, if any, have been paid and all types of approvals obtained;

3. Certificates of compliance with regard to the extent of the installation. Such certificates have

to be obtained on completion of the installation;

4. All fittings, pipes, accessories and the like used in the works shall bear approval marks; and

5. Test certificates for all essential service fittings.

3.8 STANDARDS

Materials and workmanship shall conform to Australian Standards and Codes where not in conflict with the provisions of this Specification, including but not limited to the standards and codes listed below: -

• AS 1221 Fire Hose Reels

• AS 3500 National Plumbing Code

• AS 5601 Gas Installation Code

• National Construction Code of Australia

• ICON Water Supply and Sewerage Standards

Where some doubts exist as to the appropriate standard, the decision shall be made by the Project Manager before commencement of any work on or off the site. If any doubt exists as to whether a section of the design is able to comply with the relevant authorities regulations the Project Manager shall be notified prior to the commencement of any work.





3.9 DESIGN, DOCUMENTATION AND APPROVALS

Preliminary detail design drawings are attached as part of this tender and show the intent of works to be undertaken. Sellick Consultants will provide a full set of ‘Certified for Construction’ drawings following the tender process.

3.9.1 Quality

The Hydraulics Contractor must implement any quality assurance system specified in the Project Manager Contract.

3.9.2 Record Drawings

The Hydraulics Contractor shall keep available at all times on site, a copy of design drawings marked up in colour and dated to indicate the extent of all work tested and approved by local authorities. The Hydraulics Contractor shall also keep available at all times on site a copy of all local authority test certificates.

3.9.3 Work as Executed Drawings

During installation of the services keep a complete and comprehensive record of the installed levels and the locations of all pipelines, elbows, bends, tees, junctions, cleaning eyes, etc. At practical completion prepare from the records kept, “Work as Executed” drawings showing all the above information.

A print of each drawing shall be submitted to Sellick Consultants for approval. Following

approval, deliver to Chas Group an electronic copy on compact disc and two full size paper

plots of each “Work as Executed” drawing. All documentation shall be certified by a Private

Plumbing Plan Certifier.

3.10 OPERATION AND MAINTENANCE MANUALS

The following information shall be included in the Operation and Maintenance Manual:

• General product description of each system including design reference

• Instructions for operation of systems equipment

• Supplier contact details

• Equipment protection and restart after fault

• Emergency procedures

• Description of all electrical controls and drawings

• Maintenance schedules and check lists. • A comprehensive list of all items requiring maintenance. Specify type of maintenance

required, number and location of items, and required intervals, ie. monthly, quarterly, half yearly and yearly.

• Fixture and equipment schedules E.g., a list of all fixtures, appliances, taps, valves, ball valves, level indicators and reflux valves.

• Prepare drawings showing a comprehensive schematic of control, isolating valves and back flow prevention valves including schedules of valve type, size, valve number and location.

• Maintenance personnel list E.g., companies names, addresses, business and after hours phone numbers (pumps, water filters, etc.)

• Commissioning reports and test reports E.g., commissioning of pumps, storage tanks, thermostatic mixing valves, back flow prevention devices and ratio valves, quality assurance reports during construction phase. Statutory authorities approvals, static pressure test of the domestic cold water at each floor level.

• Manufacturer's literature E.g., could be sections from catalogues.





• Design certificates and final operational acceptance certificate for all on-site and off-site works including all associated Work As Executed documentation and drawing schedule.

• Trade Waste approvals on project completion from all relevant agencies ie ACT Health, ICON, ACTPLA.

3.10.1 Reference Drawings:

All necessary reference drawings, including a full set of Work as Executed Drawings shall be

included with manuals in A3 or A4 size as appropriate. Where these drawings cannot be reduced

in scale, they shall be neatly folded and included in appropriate sections of the manual. Where a

significant number of drawings are required, the Drawings are to comprise one or more separate

volumes. All drawings shall be easily referenced from Text sections of the manuals.

A complete schedule of reference drawings shall be provided in the manual.

3.10.2 CC TV

Carry out CC TV inspection of the sewer and stormwater inground drainage systems. Supply two (2) colour videos and reports in the manual.

3.10.3 Binders

Binders shall be white 4 'D' ring, vinyl clad, sized to accommodate A4 sheets and index tabs. Colour and embossing shall be as nominated by Project Manager.

3.10.4 Identification

The front and spine of each binder shall be machine embossed with the project title and address. The final wording is to be determined by Project Manager and is to be similar to the following:

Montassori Early Learning Centre BLOCK 21 SECTION 443 KAMBAH ACT HYDRAULIC SERVICES

3.10.5 Reproducibility

Maintenance manuals shall be prepared on computer and be capable of being stored on CD in minimum Word 2007 format. Refer also to the Project Manager scope and format for the Operation and Maintenance Manuals.

3.10.6 Copyright Release

All information provided in the manuals should be suitable for reproducing for the purposes of the project without breach of copyright or payment of royalties. The Hydraulics Contractor shall provide appropriate written Copyright Releases where necessary.

3.10.7 Submission

Three (3) complete hard copy sets of Operating and Maintenance Instruction Manuals shall be provided together with two (2) copies of the manual on CD in Word 2007 format and one (1) copy of the manual on CD in PDF format. Refer also to Project Manager scope and format for the Operation and Maintenance Manuals.

3.11 COMMISSIONING

Arrange and be fully responsible for the provision of supervision for the positioning, testing and the initial start of all various equipment systems by a factory trained representative of the equipment manufacturer who has had extensive experience with the particular type of equipment/system being installed. This representative shall start up the equipment, adjust and calibrate controls and rectify any faults which may be found.





Give 48 hours notice, prior to the commissioning of the equipment/system so that Sellick Consultants and the Project Manager can be present to witness this work. The representative shall remain on site until, all equipment systems are operating satisfactorily.

Provide copies of all on-site test results prior to practical completion.

3.12 TRAINING

The Hydraulics Contractor shall be responsible for providing comprehensive training of the

building management staff to ensure that have all the information and understanding needed to

operate and maintain the commissioned features and systems. The training is to include:

1. Design intent of each hydraulic service including:

• basic functions and operations,

• energy saving features,

• simplified diagrams,

• list of main components and importance for efficient use,

• details of maintenance including frequency,

• list of likely and tell-tale signs of system failure including a list of ‘do’s and don’ts’, and

• notes on inefficient operation.

2. Controls setup;

3. Programming requirements;

4. Alarms and troubleshooting;

5. Operation and maintenance manuals;

6. Building operation including as a minimum the following:

• start-up,

• normal operation,

• unoccupied operation,

• Seasonal changovers, and

• shut-down procedures,

7. Interaction with other systems;

8. Optimizing energy efficiency;

9. WH&S issues;

10. Maintenance requirements and sourcing replacements; and

11. Occupant satisfaction feedback.

3.13 12 MONTH DEFECTS AND MAINTENANCE

The Hydraulics Contractor shall allow to fully maintain the hydraulic services for a period of 12 months. Maintenance of the hydraulic services systems shall commence on the date that the total project has achieved practical completion and is after all of the equipment and associated pipework, and electrical components are placed in regular service following the satisfactory completion of the commissioning tests and final painting.

This date will be agreed upon by Project Manager and the Hydraulics Contractor but will not be

earlier than the practical completion of the total project works. It should be noted that partial

completion or completion of the hydraulics works is not related to the commencement of the

maintenance period.





From the agreed date, the Hydraulics Contractor shall fully maintain them (at their cost) in proper working order for a period of twelve (12) calendar months, including routine maintenance and supply of all replacement components such as filters, gaskets, cartridges etc.

In the event of the maintenance being delayed or proving unsatisfactory or of the breakage or a

serious defect occurring in any part of the equipment, or of the unsatisfactory operation of the

Systems, Project Manager or Client shall exercise their right to engage the services of an

appropriate contractor to undertake the work in question. The cost associated with such shall be

directed to the Hydraulics Contractor for payment.

Annual maintenance and testing shall include but not necessarily be limited to that specified in this Specification.

Labour, Materials and Services Covered by Contract Maintenance:

(a) Answering of breakdown calls and supervisory inspections, as specified hereinafter.

(b) The replacement of damaged or defective parts materials or equipment or parts

showing signs of undue wear.

(c) The provision of all necessary lubricating oils and greases, cleaning liquids, materials

and accessories required for pump and driving unit.

(d) General routine maintenance in accordance with manufacturers' instructions.

(e) Minimum 3-monthly reviews of all commissioning data.

Answering of breakdown calls

In the event of a defect occurring at any time (i.e. at any hour of any day or night) during the

maintenance period, the Hydraulics Contractor shall, when notified, send a competent tradesman

to the site by the quickest means of transport available to restore the System to proper working

order with a minimum of delay.

Work to be carried out during final maintenance inspection

During the final supervisory maintenance inspection on the Hydraulic Services Systems at the end

of the contract maintenance period, the Hydraulics Contractor shall carry out any work as directed

to ensure that the whole of the installation and equipment is left in satisfactory working condition

and in a clean condition at the end of the maintenance period.

In addition, the Hydraulics Contractor shall allow for carrying out a complete re-commissioning of

the hydraulic services and training of the building maintenance staff in accordance with the

requirements set out in this specification.

3.14 WARRANTIES

The Hydraulics Contractor shall include all supplied manufacturers warranties in the maintenance manuals.

3.15 CO-ORDINATION

The Hydraulics Contractor shall co-ordinate his work with other trades on the buildings in such a manner as not to interfere with other work being carried out on the building.

3.16 EXISTING SERVICES

The Hydraulics Contractor shall be responsible for ensuring that all services required to be connected to are either available or are provided as part of the Hydraulics Contractors work and are of the size and level required.

The Hydraulics Contractor shall not close down any existing services without giving at least 48 hours notification to Project Manager or without written approval to do so. After notification to the Contractor that the service is redundant, the Hydraulics Contractor may proceed to cap off, or seal the service off in the correct manner, as is required by the Authorities and Project Manager.





The Hydraulics Contractor will be responsible for checking with all Authorities and the Contractor concerning the location of any existing services on the site.

The Hydraulics Contractor shall allow to seal off all existing services that may become redundant during the progress of the Project. All such services shall be sealed off and removed where practicable.

3.17 PROVISION OF MATERIALS

Except where otherwise noted, the Hydraulics Contractor shall provide all necessary fixtures and appliances, piping fittings, tools, pumps and all other incidental materials and accessories necessary for the satisfactory installation, testing and completion of the works, all to the satisfaction of Project Manager and the manufacturer.

All materials shall be new and the best of their respective kinds and generally the whole of the work shall be carried out in a tradesmanlike manner and a first class finish obtained.

Allow for building in such other fittings and accessories as required or supplied with the fixtures.

3.18 TRADE NAME REFERENCES

Any reference in this Specification or design drawings to trade names or to a particular manufactured product should not be interpreted to mean that the particular article or product is the only one to be supplied or used.

The reference is given as an indication of the quality, class, type and finish of the items to be used and as information to Tenderers on the amount to be allowed for the items concerned.

Articles or products of equal type and quality produced by the other manufacturers may be submitted by the Hydraulics Contractor to the Project Manager for approval as part of their tender submission. The reference ‘equal to’ shall be taken in all cases to be the same as the reference ‘equal in all respects to”. The acceptance of what constitutes as being of equal type and quality shall be at the sole discretion of the Project Manager.

Where no articles or products of equal type and quality are not submitted as part of the tender, then the Project Manager shall supply the articles or products as nominated in this specification.

3.19 SAMPLES:

Samples shall be:

• Submitted to the Project Manager a minimum of four (4) weeks prior to the placement of the order of the sample in question.

• Submitted of all equipment/accessories whose appearance will be visible and any other items as requested.

• Approved by the Project Manager in writing prior to placement of orders.

• Be labelled to identify their intended use.

• Be held on site after approval and used as a standard for acceptance or rejection of

subsequent production units. The Hydraulics Contractor shall be responsible for the security

of all samples that they have provided and shall replace any samples found to be missing

during the construction. Samples may or may not be returned on completion of the project.

3.20 TESTING GENERALLY AND STERILISATION OF SYSTEMS

Make all tests using the methods prescribed by the manufacturer, AS3500 and the relevant local authorities requirements. Furnish all necessary material, equipment and skilled labour for testing the work. All necessary water for the tests will be from site supply.

Provide two (2) copies of all Approvals and Test Certificates issued by the Authorities.

3.21 SOUND INSULATION OF SERVICES

All hydraulic service pipes determined by the Acoustic Engineer and agreed to by the Contractor must be sound insulated in accordance with the National Construction Code of Australia and the Acoustic Engineer specification.





3.22 PIPE AND VALVE IDENTIFICATION

General: Service pipes and conduits exposed to view or in accessible locations such as ducts and ceiling spaces shall be labelled to conform to the requirements of AS 1345 – Identification of Piping, Conduits and Ducts.

Instruments, gauges, indicators, control equipment and valves, installed as part of the works shall be clearly labelled and identified with the correct associated function. Coordination of references used within the building management system shall be undertaken to ensure compatibility of all nomenclature.

Equipment identification shall be accomplished with “Traffolyte” labels – white on a black background fixed by screws or rivets.

Provide and attach to each isolation valve a round metal tag, 50mm in diameter manufactured from 1mm thick aluminium sheet. The colour of the tags shall be in accordance with the colouring of services as specified in AS 1345. Each valve shall be engraved with an identification number, the service and areas served. The numbering system shall relate to the ‘As Installed” set of drawings.

In addition, provide a complete schedule within the maintenance manuals listing all

isolation valves and equipment including equipment, location, what the valve controls etc.

3.23 FIRE STOPPING / FIRE STOP COLLARS

Where pipes pass through any fire rated element they shall be surrounded by a sealant of intumescent material capable of completely sealing the pipe penetration under fire conditions.

The proposed fire rating systems offered by the Hydraulics Contractor shall comply with the requirements set down in National Construction Code of Australia and shall be designed to achieve a Fire Resistance Rating (FRL) of not less than 120/120/120 for all non-service penetrations with insulation waived on all services penetrations except for service risers in accessible cupboards, storerooms and the like.

The Hydraulics Contractor shall provide an independently approved certification of all systems proposed. The certification of the methods of treatment is to be provided prior to the ordering of any materials. Certification must be for the situation that is proposed to be used. Generic certifications will not be accepted.

The Hydraulics Contractor shall arrange for all inspections required by the relevant authorities at suitable stages of the contract to enable the inspecting authority to ascertain that the treatment methods are being installed to their requirements and complies with the test reports.

These inspecting authorities shall include but not limited to:

• ACT Fire and Rescue

• ACT Building Private Certifier

• An independent fire integrity consultant. The Hydraulics Contractor shall submit the name of

their proposed fire integrity consultant to Project Manager for approval. The costs

associated with the fire integrity consultant shall be included as part of the tender price.

A copy of each of every inspection report of each Authority and the fire integrity consultant shall be forwarded to Project Manager immediately after it is available.



EXCAVATION AND PIPE WORK REQUIREMENTS SECTION


SECTION 4: EXCAVATION AND PIPE WORK REQUIREMENTS

4.1 EXCAVATION

Excavation work, backfilling and surface reinstatement shall be undertaken by the Hydraulics Contractor as part of his contract scope of work for all buried services installed within the scope of works of this contract. All excavations and backfilling shall be in accordance with the relevant section of the following referenced documents.

Water

• ACT Electricity and Water – Water Supply and Sewerage Standards • Design Standards for Urban Infrastructure Works – Issue 1 Revision 0 • Standard Specification for Urban Infrastructure Works – Issue 1 Revision 0 • AS3500 Part 1 – Water Supply • AS3500 Part 4 – Hot Water Supply

Sewer

• ACT Electricity and Water – Water Supply and Sewerage Standards • Design Standards for Urban Infrastructure Works – Issue 1 Revision 0 • Standard Specification for Urban Infrastructure Works – Issue 1 Revision 0 • AS3500 Part 2 – Sanitary Plumbing and Drainage

Stormwater

• Design Standards for Urban Infrastructure Works – Issue 1 Revision 0 • Standard Specification for Urban Infrastructure Works – Issue 1 Revision 0 • AS3500 Part 3 – Stormwater drainage

Note: Generally all inground pipework excavation shall be allowed for as excavation in

ground as found. Reference should be made to the geotechnical report for likely ground

conditions that will be found.

Excavate to the lines, levels and grades as required for underground services specified. Unless

otherwise specified make the trenches straight between manholes, inspection points, junctions

etc, with vertical sides and uniform grades. Excavation within 2m of any tree dripline is to be done

by hand ensuring protection of existing flora.

Excavate trenches in sections of suitable length, lay and bed the relevant service length and

backfill the trench section, with the minimum of delay and if possible on the same working day,

unless otherwise specified or permitted.

Trench widths shall be subject to regulatory authority requirements, keep trench widths to the

minimum consistent with the laying and bedding of the relevant service, and the construction of

manholes and pits.

If the Hydraulic Contractor has exceeded the sectional area of excavations in consequence of any

injudicious working, slips, falls blasting or any other cause other than by directed, then the

Hydraulic Contractor shall, at his sole cost, remove such extra material and make good and fill.

Trench Depths shall be as required by the relevant service and its bedding method.

Cut back roots encountered in trenches to not less than 600m clear of the relevant service.

Remove such other obstructions including roots, stumps, boulders and the like which may

interfere with the proper functioning of the service.

During excavation the Hydraulic Contractor shall advance the work in a careful, secure and safe

manner and shall take all precautions against accidents and where necessary erect

shoring/timbering to prevent earth or other material slipping or failing in or being shaken from the

faces or sides of the excavation. Payment for the supply, erecting, withdrawing or abandoning or

shoring/timbering shall be included in the Hydraulics Contractors tender price.





The dewatering and disposal of all waters entering the Hydraulics Contractor’s excavations shall

be solely the responsibility of the Hydraulics Contractor. Any damage incurred by rainwater or

rainwater runoff into the Hydraulics Contractor’s excavations shall be solely the responsibility of

the Hydraulic Contractor. Such damage shall be reinstated by the Hydraulics Contractor to the

satisfaction of Project Manager and the regulatory authority at his cost and no claim for additional

cost will be allowed.

The Hydraulic Contractor shall provide and maintain efficient hoardings, barriers, night lights and

temporary traffic management systems. The Hydraulics Contractor shall apply for and obtain

approval of all proposed temporary traffic arrangements required to carry out the works. The

Hydraulics Contractor shall restore all roads, lanes, footpaths, paved areas cultivated or grassed

surfaces and all fences which may be disturbed by the operations of the Hydraulics Contractor.

Surplus spoil shall mean such excavated material that is not required for the purpose of this

contract and shall be removed from the site by the Hydraulics Contractor. The Hydraulics

Contractor shall bear all costs associated with the disposal of surplus spoil including all cartage

and tip fees.

The use of explosives will not be permitted.

4.2 BORING

Provide boring in lieu of trenches where trees are in conflict with alignment.

Boring shall comply with the requirements of the required authority.

4.3 EXISTING SERVICES

Where underground pipes, conduits or cables exist in the vicinity of the works, the Hydraulics Contractor must take care to protect such services. Any damage to such services must immediately report to Project Manager.

The cost of the necessary repairs or renewals shall be borne entirely by the Hydraulics Contractor, should negligence on the Hydraulics Contractor’s part be proven.

4.4 EXCAVATION IN EXISTING PAVEMENT AND ROADWAYS

When excavating through existing pavement, saw the pavement and/or road to a depth of at least

100mm and then remove the material with pneumatic tools. If required, trenches across the

existing roads shall be excavated and the pipeline constructed therein so that half the roadway is

always maintained open to traffic.

Allow to place 25mm thickness steel plates to Project Manager approval over open drainage

trenches during and after each day’s work so as vehicular and pedestrian traffic flow is

maintained.

4.5 MAKING GOOD

The Hydraulics Contractor shall be responsible for and shall make good any damage he may

cause to the building and surfaces generally and any other works that may be distributed or

injured by cartage, work generally or other operations. The reinstatement shall be at least as

good as state of repair as before commencement.

4.6 PIPE LAYING

All drainage work shall be carried out by registered trades persons. Pipe laying shall commence at the downstream end of the work. Pipe sockets shall point upstream. All pipes shall be laid separately and the barrel shall bear evenly on the prepared bedding. Form chases where necessary to prevent sockets, flanges or the like from bearing on the trench bottom or the bedding. Fill and compact the chases with granular bedding material after the





laying and testing of pipes. All pipes shall be laid accurately to the lines, levels and gradients shown on the hydraulic services drawings and with the class of pipe visible. Any pipe runs not laid within 10mm of the design invert level and 25mm of the correct alignment shall be removed and relaid. The maximum tolerance on relative gradient or alignment of adjacent pipes shall be 5mm per pipe length. Holes in pipes, provided for lifting or handling purposes shall be plugged with concrete plugs and any damage to pipes during handling shall be made good to the approval of Project Manager and Sellick Consultants Pty Ltd. Any pipes damaged beyond repair shall be removed and replaced. On completion of each drainage line, all pipes shall be free from dirt, debris, mortar droppings or other impediments to the free and uninterrupted flow of water. Allow for pits, manholes, bends, junctions and other pipes being constructed in the required positions. Pipes shall be cut where necessary and finished to a smooth surface by sawing or rendering the chipped surface with cement mortar. Properly fitted stoppers shall be provided and used to close the ends of all uncompleted pipe lines. The stopper shall only be removed when additional pipes are to be laid and jointed. Provide all bends, junctions inspection openings and other fittings necessary for the completion of all systems. All cut pipes shall have burrs and swarf removed and all joints shall be cleaned by approved solvent cleaner before jointing. STABLE GROUND

UPVC/HDPE Drains

Pipes and fittings of UPVC/HDPE material shall be bedded on material conforming to the relevant authorities, consolidated to a minimum depth of 75mm under the barrel of each pipe and fitting and on each side, to the level of the top of such pipe and fittings.

All Other Drains

Pipes and fittings of material other than UPVC/HDPE may be bedded on the trench floor provided that the:

• depth of trench does not exceed three metres

• trench floor is of sandy or other fine grained material with a maximum particle size of 6mm

• floor is trimmed so that the barrel only of each pipe and fitting is continuously supported Where the above requirements are not met, bedding material, conforming to the aforementioned table, shall be placed and consolidated to a minimum depth of 50mm under the barrel of each pipe and fitting. UNSTABLE GROUND

Where any drain foundation is unstable sub base, for the pipe bedding material, of not less than 19mm A grade crushed rock shall be placed and consolidated by suitable mechanical plant to 95% compaction. One copy of a written report, from an accredited Soil Engineer, stating that the sub base has attained the required 95% compaction must be lodged with the controlling authorities Inspecting Officer at the time of the drainage inspection and three copies of the report forwarded to Project Manager and Sellick Consultants Pty Ltd). Alternatively, the use of timber, concrete or other suitable material in the form of cross beams, piles and cross beams, piles and decking or a continuous foundation may be used.





PIPING BELOW SLABS

Pipes shall pass through footings only where approved by a structural engineer. All cast in pipes and fittings shall be HDPE, wrapped with 10mm minimum of approved flexible waterproof material with joints taped to provide a waterproof encasement as required by the controlling authority All drains laid in unstable excavated or filled ground (e.g., above pad footings) shall be supported by 10mm diameter stainless steel hangers, (coated with plastic where in contact with UPVC pipe), at a spacing of 1.5 metres for cast iron and 2 metres for UPVC and brass. All hangers are to be fixed into the floor slab reinforcement to a structural engineers approval. Where drains are within 600mm from invert to a pad footing or other fixed structural member the drain shall be supported by pre-cast concrete support blocks being positioned between the two. Support blocks shall be constructed so there is 75mm clear supporting concrete on both sides of the pipe. The height of each block shall be constructed to allow for the nominated grades of drains to be maintained. Drains are to be supported directly behind each socket or flanged connection, half way along each pipe length and on both sides of each change in direction. Side support of drains shall be installed where nominated by Project Manager once drains have been laid and before backfilling is commenced. PIPE CAST INTO CONCRETE SLABS

Pipes shown to be cast into slabs shall be carefully and accurately located to suit levels, grades and authority requirements. Pipes shall be fixed securely to withstand stresses imposed by the pouring and setting of the concrete. All cast in pipes and fittings shall be HDPE, wrapped with 10mm minimum of approved flexible waterproof material with joints taped to provide a waterproof encasement as required by the controlling authority. All piping which penetrates slabs and basement retaining walls shall be sealed against ingress of flood waters and seepage.

4.7 BEDDING AND BACKFILLING - UNDERGROUND PIPE INSTALLATION

Unless otherwise specified bed the pipework on a continuous underlay of pipe bedding material,

compacted in granular, or minimum thickness after compaction as required by the relevant

standard, but in any case not less than 75mm. Grade the bedding evenly to the required gradient

of the pipework.

Where the base of a trench is unstable or water charged ground, drains shall be supported on

steel reinforced concrete beams and piers designed for that purpose.

Submit details of all beams and supports for approval before commencing installation.

Form chases where necessary to prevent sockets, flanges or the like from bearing on the trench

bottom or the bedding. Fill and compact the chases with granular bedding material after the laying

and testing of the pipes.

Backfilling of excavations shall be carried out under this contract.

Backfilling over mains may, subject to the approval of Project Manager and testing authority, be

carried out prior to testing of the mains, except at the pipe joints.





Backfilling of Mains shall be minimum 600 mm thick over the top of the pipe at the joints. The

remainder of the backfill in the trench shall be stabilised selected excavated fill, as approved by

Project Manager and Sellick Consultants.

Immediately after the pipe line has been tested and inspected by the relevant authority the trench

shall be backfilled in the following manner:-

(a) The backfill material shall then be carefully and continuously placed to an initial depth of

600mm over the pipe, rammed, and watered around and over the pipe until the firmly

compacted filling completely covers the pipe for the full width of the trench.

(b) The remainder of the trench shall then be backfilled with approved material, placed in

layers not exceeding 300 millimetres loose thickness and compacted to a density of at

least 95% of modified Maximum Dry Density as determined by AS 1289 procedures.

Unless otherwise specified, backfill with general filling, with no stones retained on a 25mm sieve

occurring within 150mm of the service. For materials other than the above as cover or back-filling

to particular services, refer to the relevant services Sections.

Do not place filling against concrete until the concrete has been in place for fourteen days, unless

otherwise approved.

Back-fill for services under roads, pavements and concrete slabs shall be gravel sub-base class 2

compacted to 98% MMDD placed as nominated for general filling.

Provide compaction tests for all service trenches on the basis of not less than one test per service

branch or as directed.

Protect the works during compaction from damage by compaction operations. Compact by hand

if necessary to prevent damage or disturbance to services, pipe joints and the like.

Prior to and during placing, bring the materials to within 2% of the optimum moisture content

determined to AS 1289 Method E1.1 for the filling type. The surface may be lightly sprinkled with

water during compaction if necessary to replace moisture loss.

Unless over-ridden by regulatory authority requirement or otherwise specified, the following table

shall apply for minimum cover over pipes:

Pipes not subject to vehicular loading: 450mm

Pipes subject to vehicular loading –

Not in roadways:

Under sealed roadways:

Under unsealed roadways:

600mm

600mm

750mm

Pipes in embankments or subject to construction

equipment loading:

750mm

Testing

Give 48 hours notice prior to test so that Project Manager can be present at the following stages:

• Service trenches excavated before laying the service.

• Services laid in trenches and ready for backfilling.

Acceptance of the works shall be subject to satisfactory compaction tests in accordance with a

program ordered by Project Manager. All such testing shall be arranged by the Hydraulics





Contractor who shall employ for this purpose an independent tester. Project Manager shall be

given 24 hours notice of all field tests to enable him or his representative to be present. Tests

carried out without such notice shall be disregarded.

Allow time for arranging, carrying out and obtaining the results of all tests on one part of the work

before proceeding with work covering it. Three copies of all test results shall be forwarded directly

to Project Manager from an accredited testing laboratory. Project Manager shall endorse one copy

as acceptable or unacceptable, and forward it to the Hydraulics Contractor.

Any sections of bedding or backfill within which tests fail to comply with the specified requirements

shall be liable to rejection by Project Manager. Such rejected sections shall be immediately

corrected as determined by Project Manager to comply with the specification at the Hydraulic

Contractor's expense.

Density tests

Testing authority: Have density tests of pipe bedding and backfilling carried out by a registered

testing authority.

Test methods:

• Field dry density: AS 1289.5.2 or AS 1289.5.3.5

• Standard maximum dry density: AS 1289.5.1.1

• Dry density ration: AS 2389.5.4.1

• Density index: AS 2389.5.6.1

Reinstatement Reinstate existing surfaces removed or disturbed by trench excavations to match existing and adjacent work.

• Lawn Areas

Provide 150mm of loam and re-sow the lawn over the trench and other disturbed areas.

• Segmental Paving

Provide sand bedding and compacted crushed rock base, if required to match the existing construction. Reinstate the paving units.

• Concrete Surfaces

Provide crushed rock base and subbase to match the existing pavement. Prime coat the cut edges of the existing surfaces with cement slurry. Lay and compact concrete so that the edges are flush and the centre is cambered 10 mm above the adjoining existing surfaces. Minimum thickness: 75 mm or the adjacent pavement thickness, whichever is thicker. Reinforcement and dowels: If required, provide steel reinforcement with dowels into the adjacent concrete. Joints: Provide joints in locations to coincide with and detail to match joints in existing pavements. Concrete strength: 25 MPa. Curing: Cure by keeping continuously wet for 7 days.

• Bituminous Surfaces

Provide crushed rock base and sub base to match the adjacent work. Prime coat the edges of the existing surfacing with bitumen. Lay and compact hot mix asphalt so that the edges are flush and centre is cambered 10mm above the existing pavement. If hot mix is not available, cold pre-mix will be accepted.





Asphalt thickness: Not less than 50mm or the adjacent pavement thickness, if thicker or as specified by the civil engineer.

4.8 BEDDING FITTINGS

Provide flexible joints by installing short lengths (not more than 600mm) of flexibly jointed pipe on

each side of concreted fittings, pits, manholes and the like, in principle as illustrated in AS 3500

Part 2.

4.9 CONCRETE ENCASING

Unless otherwise permitted by the relevant authority, concrete encase the following:

Pipelines which cannot be provided with the required minimum cover;

Encasement shall consist of 15 MPa concrete, not less than 150mm above and below the pipe

and 150mm each side or the width of the trench, whichever is the greater.

4.10 DRAINS BENEATH BUILDING

Where sewer drains pass beneath footings surround pipes by not less than 150mm of 20 MPa

concrete measured clear of the line of collars.

With the exception of cast iron penetrations build into structural concrete, where drains of any kind

pass through foundation walls make neat opening, minimum 6mm clear of pipe all round.

Suitable arch wall construction so that no superimposed loading is imparted to pipe. Seal pipe in

approved manner. At outer walls make suitable approved provisions to prevent ingress of rodents

and other vermin.

4.11 ABOVE GROUND PIPEWORK INSTALLATION

Install pipework in straight lines and uniform grades without sags. Provide bends and sets as

required, and sufficient unions, flanges, isolating valves and the like for satisfactory removal of

piping and fittings for maintenance. Arrange and support pipework as necessary where

suspended, so that it remains free from vibration whilst permitting necessary movements such as

thermal expansion and contraction. Provide the fittings and components connected up and ready

for testing the service. Keep the number of joints to a minimum.

Do not install copper in contact with steel, zinc or other materials likely to generate electrolytic,

galvanic or corrosive action. Make junctions between dissimilar metals with special fittings

manufactured in suitable compatible material.

Arrange valves together where practicable in operational grouping, in convenient and readily

accessible positions.

Pipework runs to be in false ceilings, roof spaces, under suspended ground floors plant rooms,

and the like. Arrange adjacent to and horizontally parallel with each other and with walls, beams

and the like. Keep at least 150mm above ground surface if under suspended ground floors.

Provide adequate spacing of at least 25mm between pipes or pipe insulation, 50mm between

pipes or pipe insulation and electrical cables. Take off branches at right angles.

4.12 ACCESSIBILITY

Check size and location of all access panels/doors and openings shown on architectural,

structural and hydraulic services drawings to ascertain if they satisfy authorities requirements.

Locate pipework in accessible positions, with adequate clearance, pipe fittings requiring

maintenance or servicing, including inspection openings, cleaning points, joints designed to

enable removal of pipes, control valves and the like.

As far as practicable, install plumbing work inside buildings so that it is removable without damage

to the building structure or finishes.





Where practicable, conceal pipework so that it is accessible within ducts or non habitable

enclosed spaces and does not appear on external walls. Obtain prior approval for the location of

exposed pipework.

If pipework is proposed to be enclosed so as to be not accessible after completion, obtain prior

approval for the location of pipe runs and pipe fittings, and record the actual locations on work as

executed drawings.

4.13 CAPPING OFF

During construction, temporarily seal open ends of pipes to prevent the entry of foreign matter into

pipe systems. Provide purpose-made covers of pressed steel or rigid plastic. Do not use rags,

paper or wood plugs.

4.14 CLEANING OUT

Clean out piping of loose scale and dirt before installation, and again after installation and sealing

of joints. Flush piping systems through with clear water at a velocity sufficient to remove foreign

matter and until only clean water is discharged at outlets. Leave the system free of foreign matter

on completion.

4.15 CLEAR-OUTS

Install clear-outs in positions as indicated on the drawings, and as required by local authorities.

Allow to extend from drain lines to finished surface level using a 60% junction and 30% bend.

Provide 100mm diameter, chrome plated brass clear-outs at finished floor level.

4.16 WORKMANSHIP GENERALLY

Co-ordinate installation of pipework with other types of trade pipe runs or duct runs so that all

services can be installed and maintained without hindrance.

Lay pipes in continuous lengths wherever practicable and bend in order to minimise joints.

Make all connections to valves, taps, tanks, etc., pipes of other materials and dismantling points.

For pipes 65 bore and over, connections shall be made with flanged joints and with threaded

union joints for pipes 50 bore and under.

Brazing shall be carried out by first-class tradesmen experienced in work being carried out.

Open ends in pipework being erected shall be properly protected by metal caps at end of each

day's work or at the end of each section of work.

Valves and access panels and all items, which require access at any time, shall be placed in a

position that is fully accessible for maintenance and operation.

Where pipes are led up or along walls and then through fixtures, pipes shall not be bent but shall

be fitted with gunmetal elbows to allow for correct fitting of cover plates. Mitred elbows will not be

permitted.

Except where specifically mentioned in conjunction with a particular item of work, cast bends shall

not be used. Care must be taken that sufficient unions or flanged joints are installed to allow

satisfactory removal of fittings for inspection or repair.

Pipes shall be spaced clear of all services.

All piping shall be cut square with the run and all cutting burrs removed with a proper pipe reamer.

Pipework generally shall be concealed in false ceiling spaces or in the ducts provided.

Joints will not be permitted within the thickness of walls or floors unless it can be demonstrated

that no other option is practicable or possible.





Only hexagonal nipples shall be used on screwed pipework; barrel nipples or running joints will not

be permitted.

Pipework concealed in pipe ducts or plinths shall be provided with easy access to cleaning eye.



MATERIALS SECTION


SECTION 5: MATERIALS

5.1 GENERALLY

All materials and workmanship shall be in accordance with the relevant section of the following referenced documents.

Water

• ACT Electricity and Water – Water Supply and Sewerage Standards • Design Standards for Urban Infrastructure Works – Issue 1 Revision 0 • Standard Specification for Urban Infrastructure Works – Issue 1 Revision 0 • AS3500 Part 1 – Water Supply • AS3500 Part 4 – Hot Water Supply

Sewer

• ACT Electricity and Water – Water Supply and Sewerage Standards • Design Standards for Urban Infrastructure Works – Issue 1 Revision 0 • Standard Specification for Urban Infrastructure Works – Issue 1 Revision 0 • AS3500 Part 2 – Sanitary Plumbing and Drainage

Stormwater

• Design Standards for Urban Infrastructure Works – Issue 1 Revision 0 • Standard Specification for Urban Infrastructure Works – Issue 1 Revision 0 • AS3500 Part 3 – Stormwater drainage

All materials shall be of the best quality and type of their kind. They shall conform to the

requirements of the latest relevant specification of the Standards Association of Australia, or if

no Australian Standards exist, to the requirements of the relevant British Standard Specification.

5.2 REJECTION OF UNSATISFACTORY MATERIALS

In the event of materials being of a mixed description and quality, Project Manager shall have

power to order to have those portions of the materials which in his opinion are unsuitable for the

works, picked out, marked and stacked where directed and all defective or unsuitable materials

removed from the site.

5.3 COPPER TUBES AND FITTINGS

Copper Tubes shall be solid – drawn couplings with the following standards:

- Water Services Pipes AS 1432 Type B

- Gas Service Pipes AS 1432 Type B

Copper Fittings to AS 1589

Capillary Fittings to AS 3688 Silver solder joints only.

Flanges to AS 2129

Use capillary fittings, silver brazed slip joints, flanged joints, or press fit.

Use low temperature silver brazing alloy rods to AS 1167, classification B2 and oxyacetylene

heating.

Screwed joints to AS 3500.4.

Using a proper tool, soften and expand the pipe to form a slip joint of not less than the following

lengths.

Nominal Pipe Size Length of Slip Joint

15-20 mm 10 mm



MATERIALS SECTION


25-32 mm 12 mm

40-65 mm 16 mm

80-100 mm 20 mm

5.4 UNPLASTICISED POLYVINYL CHLORIDE PIPES (uPVC)

uPVC pipes and fittings shall be approved for use by the local Authority and shall be to the

appropriate Australian Standard and shall where applicable, be installed in accordance with the

current requirements of AS 3500.

uPVC pipework passing through fire rated building elements shall have appropriate fire stop

collars installed so as to maintain that building elements required fire resistance level.

uPVC pipes and fittings should be so positioned that identifying marks are readily visible for

inspection when installed.

uPVC pipes shall be of approved manufacture and shall conform to the following Australian

Standards as appropriate:

AS 1254 Unplasticised PVC (PVC-U) Pipes and fittings for Storm or Surface Water

Applications.

AS 1260 uPVC pipes and fittings for drain, waste and vent applications.

uPVC pipes and fittings used for stormwater drainage pipelines shall be class HD conforming to

Australian Standard 1254 and solvent weld jointed.

uPVC pipes and fittings used for sanitary drainage pipelines shall be minimum class SN10 for

100mm-diameter pipes and minimum class SN8 for 150mm-diameter and larger pipes.

5.5 CROSS LINKED POLYETHYLENE PIPE & FITTINGS (PE-X)

Cross linked polyethylene pipe and fittings (PE-X) for hot, warm and cold water system, shall be

a) used above slab only and first quality and in accordance with AS 2492.

b) Water services pipes shall be not less than Class 16 as specified in AS 3500 and shall

have Brass Dezincification Resistant fittings as to AS 3688 with jointing method as per

manufacturer’s instructions.

c) Tubes which are to be installed within concrete slabs are to be run in conduits and shall

comply with the requirements of the appropriate building authority (AS 3500).

d) Cross linked polyethylene will not be used in areas as specified in AS 3500.

5.6 POLYPROPYLENE PIPE AND FITTINGS (HDPE)

HDPE pipes and fittings for trade waste, greasy waste and laboratory discharges shall be

a) first quality and be in accordance with ISO 9001.

b) Black injection moulded polypropylene pipes and fittings used for underground services

are to be fusion welded and above ground pipes to be mechanical jointed.

5.7 MATERIALS FOR SUB-SOIL DRAINAGE

Pipework shall be either:

Rigid PVC-U pipe with longitudinal slots and filter sock or approved plastic drainage cell

a) Sub-soil drainage to be laid on blue metal 20mm single size round or crushed aggregate

conforming to AS 2758.1.

b) Geotextile fabric of mass not less than 150 gms per square metre.



MATERIALS SECTION


5.8 FLOOR WASTES

All floor wastes shall be set with the rims slightly below floor surfaces. The floor surfaces shall be graded and dished to discharge into them. All floor wastes shall be fitted with approved traps.

5.8.1 Garbage Floor Wastes

Supply and install where indicated on hydraulic services drawings.

5.9 FLANGES

Flanges shall:

• conform with AS 2129 Table E

• be brass for copper tube

• be hot dipped galvanized mild steel for galvanized mild steel tube.

• be jointed with 6mm thick reinforced rubber insertion.

Use gunmetal bolts with a tensile strength of 500 MPa on brass flanges.

Use galvanized steel bolts in accordance with AS 2451 on cast iron and steel flanges.

Bolts and nuts below ground shall be insulated with PVC washers and sleeve and the pipe

protected with Denso Primer and Tape for two metres either side of the flange as specified.

5.10 FITTINGS GENERALLY

Provide the necessary fittings for the proper functioning of the hydraulic service, including taps,

valves, pressure and temperature control devices, strainers, gauges, automatic controls, alarms

and the like to the following standards unless otherwise specified:

a) Safety valves generally (including relief valves): To AS 1271

b) Pressure and temperature relief valves for solar storage water heaters: To AS 1357.

c) Pressure reducing, pressure limiting and pressure ration valves for storage water heaters:

To AS1357.

d) Non-return devices for water storage heaters: To AS 1357.

e) Vacuum relief valves for storage water heaters: To AS 1357.

f) Air release valves to AS 1271.

g) Water hammer devices to be 15mm stainless steel. Installed on all cold water supplies to

each apartment, retail outlet, etc.

h) Thermostats and energy regulators generally: To AS/NZS 3161.

i) Thermostats and over-temperature energy cut-outs for electric water heaters: To AS

1308, adjustable or fixed settings as required.

j) Water gauges to AS 1271.

k) Mark each fitting in accordance with the relevant standard.

5.11 VALVES: GENERAL

Valves shall be placed in easily accessible position for operation and repairs.

Watermarked approved type of valves only shall be used.

All valves 65mm and over shall be flanged. All other valves shall be screwed. Screwed valves

shall be provided with unions to facilitate maintenance removal.



MATERIALS SECTION


The internal seats and washers of valves must be cleaned of all foreign material during

installation. Any valve faces or seats found damaged on completion of the installation shall be

replaced.

Install valves with spindles in a vertical position where practicable.

Conceal valves wherever possible in ducts or non-habitable enclosed spaces provided that they

shall in any case be accessible. Valves installed in ducts shall be positioned at a minimum of

600mm above finished floor level.

Valves in Visible Positions: Match finish to that of adjoining visible pipework.

Sluice Valves to be installed on all incoming water, fire hydrant and sprinkler services. Provide

and locate flanged valves in underground valve box to comply with AS 2638.

Where valves are located in service ducts or other enclosed space, provide access openings

approximately 450mm square in the structural elements and cover with removable cover plates.

Install valves to control and cut off gas flow in gas lines to AG 601, Clause 2.6.2 and to approval

list AG 201 of AGA and ALPGA ‘Approved Appliances and Components’.

Reduction valves, pressure limiting valves, or ration valves to produce the specified reduction in

pressure. Prior to installation obtain a guarantee from the manufacturer stating the reduction in

pressure and flow rates obtained under test conditions.

Provide isolating valves on each branch line from the main service lines of all hydraulic services to

isolate all connected equipment, including hot water units, amenities, fixtures and elsewhere as

shown on the drawings.

5.12 GATE VALVES

Gate valves up to and including 80 mm diameter shall be

a) manufactured of DR brass, having a solid wedge, inside screw and non-rising stem.

b) Handwheel baked epoxy enamel coated aluminium alloy on all sizes, secured by brass

handwheel nut.

c) Gland to be machined from brass bar; of generous length for adjustment of packing as

required d) matching piece machined from DR brass bar: ample depth of thread for

amp adjustment of gland

e) Ceramic cord packing

f) Stem machined from DR brass bar; smoothly finished Acme form actuating thread to fit

wedge.

NOTE: All bronze gate valves shall conform to Australian Standard AS 1628, 1977, having DR

stamped on the valve body to indicate that they are de-zinc resistant.

5.13 STOP VALVES

Stop valves up to and including 50 mm diameter shall conform in all respects to the requirements

of the local water authority.

Stop valves shall be connected to the pipework by means of screwing connections; silver

soldering or brazing of cocks or valves directly to copper pipes will not be permitted.

Stop valves shall have loose jumpers; replaceable washers and seats 'O' ring seals in preference

to packed glands and shall be clearly marked to show the direction of flow.



MATERIALS SECTION


5.14 FITTINGS GENERALLY

Provide the necessary fittings for the proper functioning of the hydraulic service, including taps, valves, pressure and temperature control devices, strainers, gauges, automatic controls, alarms and the like.

5.15 STOP VALVES

Stop valves shall conform in all respects to the requirements of the local water authority.

5.16 PRESSURE LIMITING VALVES

A 40mm adjustable Pressure limiting valves shall to be located on the incoming water supply line to limit the mains water pressure to any fixture to a maximum of 500kPa and a minimum of 350kPa, and shall be the same size as the hot and cold water supply and equal approved to that manufactured by RMC high performance model.

5.17 TEMPERING VALVES

Tempering valves shall be RMC High Performance or equal approved and set at 50°C and be fully operational in dynamic water supply pressures from 30kPa to 1000kPa. Valves shall be able to function where the hot and cold differential in pressure is up to 10:1. Tempering valves shall be suitable for either horizontal or vertical installation and shall deliver a minimum flow rate of 15 I/min at 30kPa. Tempering valves shall incorporate a locking device whereby the adjusting knob is fixed firmly into position using a system locking spline built into the knob. In line strainers shall be installed on the hot and cold feed lines to the valve. Tempering valves shall be located behind an access panel at the apartment it serves.

5.18 THERMOSTATIC MIXING VALVES

To be installed in in place of a tempering valve at all fixtures accessible by children. Water temperature regulated by a single hand control and capable of delivering water at the temperature of either of the supply systems and at any temperature in between and suitable for controlling single or multiple outlets, as appropriate, to comply to AS 4032 and AS 3500.

The installation shall be complete with isolation valves, check valves, unions, temperature test point etc, as required for a complete installation.

The temperature must be set at 43oC for all disabled facilities.

Thermostatic mixing valves shall be located behind a lockable access panel within the apartment it serves.

5.19 BACKFLOW PREVENTION

Supply and install backflow prevention devices to all water supplies serving fixtures with possible cross connection hazard to conform with AS 3500.1 Section 4 and AS 2845 Parts 1 to 3.

5.20 PIPING INSULATION

All Hot water supply pipes are to be insulated in accordance with the requirements of Section J Part J7 of the National Construction Code and Section 8 of AS3500.4. Cold water supply lines are to be insulated in accordance with the requirements of Section 5 of AS3500.1.

Locations where insulation is required include:

• All Hot water pipes;

• Cold water under 50mm-diameter located external to the building;



MATERIALS SECTION


• Cold water under 50mm-diameter located in roof and plantroom spaces;

• Cold water under 50mm-diameter located in locations near windows, ventilators or external

doors; and

• Cold water under 50mm-diameter located in locations in contact with cold surfaces such as

metal roofs, metal framework, or external metal cladding materials.

Metal sheathing location: Insulated piping in plantrooms, external locations, inground locations and where exposed to view shall have metal sheathing installed. Cover piping with 0.5mm thick zinc-coated steel sheet metal sheathing sprung over the insulation in one piece with laps at least 30mm wide, and fastened with self tapping screws or snap head rivets at 150mm maximum centres. Preform the sheathing to match the shape of the insulated pipe and fittings. Position laps to avoid water penetration. In external locations weatherproof the joints and fixings using a non-setting mastic. If necessary, increase the insulation thickness to be compatible with the metal sheathing.

Refer also to Section 3 for the responsibilities of the Hydraulics Contractor for fire rating and certification of fire ratings.

5.21 VALVES BOXES

Provide cast iron valve boxes with removable covers for access to all underground isolation valves and provide cast iron sluice valve covers for access to sluice valves. Set beneath each box a shaft formed of UPVC pipe to give clear access to the valve wheel or spindle. Set top flush with pavement surface of 15mm above unpaved surfaces and encase in formed concrete 150mm deep and 150mm wide to sides of box, with top surface trowelled smooth.

5.22 EXPANSION JOINTS

Supply and install approved expansion joints to all copper, uPVC and HDPE soil, waste, relief and main vent lines. Expansion joints in copper tube and uPVC for all vent lines, drainage lines, hot water flow and return lines, cold water lines, gas lines etc, shall be installed on each line at intervals not exceeding 3000mm on both vertical and horizontal pipelines and on either side of building expansion joints.



SEWER AND TRADE WASTE DRAINAGE SECTION


SECTION 6: SEWER DRAINAGE

6.1 GENERALLY

Supply, install, test and commission all sewer drainage from all sanitary fixtures up to and including the new sewer tie points as indicated on the design drawings. Provide all necessary pipes, junctions, bends, pits, manholes, floor wastes, excavation, supports, backfilling, testing and sundry equipment required for the installation. Pipeline positions shall be determined on site in conjunction with all other disciplines to ensure adequate coordination of all services and elements. Coordination shall be carried out prior to any setting out, excavation and pipe installation taking place.

Execute the works, using only materials and structures as approved by the local authority and to the satisfaction of the local authority and Project Manager.

6.2 PIPEWORK

Pipes and fittings shall be in materials as follows:-

Service Nominal Size Pipe Material and Jointing

Sanitary Drainage 65 – 100 uPVC with solvent weld joints

Where cast-in slab 50 – 110 HDPE electrofusion welds

6.3 VENTS

Terminate all vents as indicated on the design drawings and at the minimum height required by the authorities and required for installation of the flashing and cowl. Where vents penetrate through roof provide collar flashings prefabricated from moulded neoprene and sheet zinc equal to `Dektite' at vent pipe penetration through roof surface. Seal watertight to the roof surface with a silicone sealant, fixing with stainless steel self tapping screws, and seal to the vent pipe with a stainless steel hose clamp. The top of vent pipes shall be fitted with PVC cowls fixed to the vent pipe by a solvent welded joint.

6.4 INSPECTION OPENINGS

Inspection openings shall be provided on a stack immediately above ground and all floor levels to allow access to the pipes for maintenance and cleaning purposes. For pipes up to and including 80mm, inspection openings may consist of threaded access caps. For pipes 100mm and over, opening shall be the same size as the pipe diameter. Inspection openings shall be provided at the head of all graded waste pipes with multiple fixture connections and at the junction where that waste pipe connects to the stack. Where inspection openings are concealed within a duct or a wall, an access panel shall be placed so that a clear access is provided to the inspection opening for maintenance purposes.

6.5 TRAPS

Provide all traps required for the sanitary plumbing installation. All waste traps shall have a 75mm minimum water seal and W.C pans a minimum of 50mm water seal. Where concealed from view in a cupboard or the like traps and tails may be of white polypropylene with PVC tails.

6.6 TUNDISHES

Provide tundishes connected to floor waste gullies or sealed floor waste gullies as required. Provide tundishes for mechanical plant as required on mechanical design drawings. Coordinate locations of tundishes with mechanical contractor.



SEWER AND TRADE WASTE DRAINAGE SECTION


6.7 OVERFLOW RELIEF GULLY

Supply and install an overflow gully to provide a safe release from the connection point. Gully

shall be located and sized in accordance with AS3500.2.



STORMWATER PLUMBING AND DRAINAGE SECTION


SECTION 7: STORMWATER PLUMBING AND DRAINAGE

7.1 GENERALLY

Supply, install, test and commission all stormwater plumbing and drainage up to and including the new stormwater connection tie point as indicated on the design drawings. Provide all necessary pipes, junctions, bends, pits, tanks, floor wastes, excavation, supports, backfilling, testing and sundry equipment required for the installation. Pipeline positions shall be determined on site in conjunction with all other disciplines to ensure adequate coordination of all services and elements. Coordination shall be carried out prior to any setting out, excavation and pipe installation taking place.

Execute the works, using only materials and structures as approved by the local authority and to the satisfaction of the local authority and Project Manager.

7.2 PIPEWORK

Pipes and fittings shall be in materials as follows:-

Service Nominal Size Pipe Material

Stormwater Drainage 100 – 225 uPVC with solvent weld joints

Stormwater Plumbing 100 – 150 uPVC with solvent weld joints

Sub-Soil Drainage 100 Perforated PVC with geofabric surround.

7.3 PRECAST STORMWATER PITS & MANHOLES

All components and jointing methods are to be made strictly in accordance with the manufacturer's instructions with all joints made water tight. Provide to Sellick Consultants Pty Ltd all details and methods of construction for all pits for approval prior to assembly. For pits fitted with pre-cast concrete frames and lids, the top of the pits shall be covered with a thin layer of cement mortar immediately prior to placing the frames. Where pits are to be located in ground containing ground water which is highly corrosive they shall be constructed of Type A cement with C3A content less than 5%.

7.4 COVERS AND GRATES

Pits and trenches shall be fitted with Gatic or equal approved covers and/or gratings, capable of being lifted by one man, supplied and installed complete with frames installed and finished off strictly in accordance with the manufacturer's recommendations and are to conform to the position, levels and grades as indicated on drawings. Trench grates shall be as indicated on the architectural drawings and/or hydraulic approval drawings. All pits lids and covers shall be secure bolt down type, trafficable Class D.

7.5 LADDERS & STEP IRONS

All pits, inspection chambers, wetwells and the like deeper than one metre shall have a steel ladder, galvanised after fabrication, 300mm wide with 16mm rungs at 300mm centres. The top rung shall not be more than 300mm below the bottom of the cover and the bottom rung not more than 450mm above the floor of the pit and shall be fixed 150mm off the concrete face. Rebated step irons may be used in lieu of a ladder only for dry inspection chambers up to three metres deep and only where they are built in during the chamber construction. Each step iron shall be 16mm diameter at 300mm centres and hot dip galvanised with rebated step. Step irons



STORMWATER PLUMBING AND DRAINAGE SECTION


are to have a length of 150mm from concrete face and be 300mm wide. The location of the ladder or step irons shall be clear of drain inlets and, in drop pits, shall not be opposite the drop. Supply step irons to Project Manager for building into pits during construction.

7.6 SUB SOIL DRAINS

Provide subsoil drains to intercept groundwater seepage and prevent water build-up behind walls and under floors, pavements and landscape beds. Connect subsoil drains to surface drains or to the stormwater drainage system as applicable.

7.7 RAINWATER RETENTION TANK

The rainwater retention tank shall be a purpose 11,700litre Verstaile tank with Class D heelguard grated access. The retention system is to include access ladders, and bolt down access lid. Also allow for suction line, conduits, Multitrobe level sensor, control panels as noted on the design drawings. Supply and install a Qmax reuse pump system in accordance with the design drawings and detail sheet.

7.8 EDUCATIONAL RAINWATER REUSE TANK

The educational rainwater retention tank shall be a 5000 litre Bluescope colourbond steel tank – refer to architects specification for colour. Install a Davey Rainbank reuse pump from tank and connect 20mm domestic cold water makeup in accordance with manufacturers installation instructions.

7.9 WSUD, STORMWATER DETENTION AND STORMWATER QUALITY

Refer to Civil engineers documentation for information on water sensitive urban design, stormwater detention and stormwater quality pre-treatment devices.



SANITARY PLUMBING SECTION


SECTION 8: SANITARY PLUMBING

8.1 SCOPE OF WORK

Install, test and commission all sanitary plumbing from soil and wastes fixtures to the sewer drainage connections. Sanitary plumbing works above ground shall include all those works generally considered by authorities and trade practice to be soil, waste, vent above ground as distinct from drainer's work.

Plumbing as defined in this Section shall comprise the sanitary plumbing waste, mechanical condensate waste and sanitary vent pipes above ground.

The Hydraulics Contractor shall provide protection of all fittings and pipework after installation and secure them against damage and shall be completely responsible for the replacement of any damaged or disfigured fitting, pipe or fixture at his own cost.

8.2 PIPEWORK

Pipes and fittings shall be in materials as follows:

Service Nominal Size Material

Sanitary Plumbing and Venting 32 – 100 uPVC with solvent weld joints

All other exposed piping shall be cleaned free of cement droppings and other debris.

8.3 FIRE STOPPING / FIRE STOP COLLARS

All PVC-U/HDPE pipes penetrating floor slabs, fire and smoke walls and any fire rated element shall be provided with an approved fire stop collar to match the required FRL. Refer to Section 3 also.

8.4 VENT PIPES

Terminate all vents as indicated on the design drawings and at the minimum height required by the authorities and required for installation of the flashing and cowl. Where vents penetrate through roof provide collar flashings prefabricated from moulded neoprene and sheet zinc equal to `Dektite' at vent pipe penetration through roof surface. Seal watertight to the roof surface with a silicone sealant, fixing with stainless steel self tapping screws, and seal to the vent pipe with a stainless steel hose clamp. The top of vent pipes shall be fitted with PVC cowls fixed to the vent pipe by a solvent welded joint.

8.5 INSPECTION OPENINGS & GATES

Install inspection openings in accessible locations so that each section of pipework can be cleaned. Inspection opening sizes shall be in accordance with authorities’ requirements.

Inspection openings shall be provided at the base of each sewer stack. An access panel shall be provided for access to the inspection opening.

8.6 EXPANSION JOINTS

Supply and install approved expansion joints to local authority requirements.

8.7 TESTING

Provide a hydrostatic test to maximum choke level to the satisfaction of the local authority and the Contractor.

8.8 ACOUSTIC TREATMENT

Allow to acoustically treat all hydraulic pipes in accordance with Section 3.



DOMESTIC COLD WATER SERVICES SECTION


SECTION 9: DOMESTIC COLD WATER SERVICES

9.1 GENERALLY

Supply, install, test and commission all domestic cold water pipes from the water tie to all fixtures, fittings, plant and faucets requiring domestic cold water. Include for all pipework, bends, offsets, brackets, pumps, taps and faucets and sundry equipment required for the installation.

Pipe materials shall be as follows:

• Below ground: Copper type B

• Main runs and main risers to isolation valves: Copper Type B

• Above ground: Copper, or equal approved

• All water pipes passing through fire rated walls shall be fire sealed to the same rating as the

structure.

Except as otherwise specified or directed, all internal exposed piping adjacent to plumbing fixtures, including valves, taps and fittings shall be chromium plated finished. Where passing through a finished wall, floor or ceiling, piping shall be fitted with approved chrome plated wall plates. Chrome plating to comply with AS 1192 – 1973 – Electroplated Coatings of Nickel and Chromium.


9.1.1 Connection to Fixtures

Provide unions at wall or floor surface and at fixtures and appliances to allow removal and replacement without the need to adjust connections.

To pipelines supplying hot and cold water to individual fixtures, supply and install valves for the purpose of shutting down the system for isolation and maintenance purposes as specified in “Materials” section. Connections from the isolation valve to the fixtures shall be by stainless steel braided connectors.

9.1.2 Testing

Provide a water pressure test of 1500 kPa for a period of two hours. Disconnect any equipment connect to the service not rated to the test pressure, before testing commences and to conform to the “Preliminaries” section.

9.1.3 Taps and Faucets

Supply and fix the taps and faucets specified in the “Sanitary Fixtures & Fittings and Tapware” section.

9.1.4 Insulation

Supply and install insulation to the cold water supply lines as specified in “Materials” section.

9.1.5 Flushing & Cleaning Of Water Supply Services

Immediately after the satisfactory completion of the sectional/first fix and the whole system/final fix hydraulic pressure tests the Hydraulics Contractor shall flush out, remove all foreign matter and clean all the systems. Water systems shall be flushed out with clean water. Whenever possible the flushing medium shall be fed into the system at high points and flushed out at low points on the system via suitably sized valve or plugged wash-out points. The flushing and cleaning medium shall be fed into the system at the highest pressure that the system will safely withstand and be carried out for a sufficient period of time to ensure that all foreign matter is removed. The flushing shall be witnessed by the Contractor for the duration of the flushing of each service and shall be recorded by the Hydraulics Contractor and certified by Project Manager.



DOMESTIC COLD WATER SERVICES SECTION


9.2 BACKFLOW PREVENTION

Supply and install an approved backflow prevention protection devices (BFPD’s) in the domestic cold water supply and irrigation system as specified in the “Materials” section.

In order to comply with AS3500 Part 1.2 Section 4, caution signs complying to AS1319 must be made and installed at every outlet that is served with water from the reduced pressure zone devices (RPZD’s). The caution sign shall be clearly and permanently labelled to state

‘CAUTION NOT FOR DRINKING’

Provide isolation valves upstream and downstream of valve and line strainer at inlets to all backflow prevention devices.

All fire hose reels water supply shall be fitted with a dual check valve at the fire hose reel.

9.3 AUTHORITY COLD WATER METER

Refer to Civil Engineers documentation for information.



DOMESTIC HOT WATER & WARM WATER SERVICES SECTION


SECTION 10: DOMESTIC HOT WATER

10.1 GENERALLY

Supply, install, test and commission gas instantaneous hot water units as shown on the design drawings. Include for all piping, fittings, supports, insulation, hot water heaters, valves, circulating pumps and other sundry items of equipment required for the installation.

Pipe materials shall be as follows:

• Below ground: Copper type B

• Main runs and main risers to isolation valves: Copper Type B

• Above ground: Copper, or equal approved

• All water pipes passing through fire rated walls shall be fire sealed to the same rating as the

structure.

Except as otherwise specified or directed, all internal exposed piping adjacent to plumbing fixtures, including valves, taps and fittings shall be chromium plated finished. Where passing through a finished wall, floor or ceiling, piping shall be fitted with approved chrome plated wall plates. Chrome plating to comply with AS 1192 – 1973 – Electroplated Coatings of Nickel and Chromium.


All pipes shall be copper tube and insulated as specified in “Materials” section.

10.2 TESTING

Provide a water pressure test of 1500 kPa for a period of two hours. Disconnect any equipment connected to the service not rated to the test pressure before testing commences. Testing is to conform to “Preliminaries” section.

10.3 VALVES (IN-LINE)

To pipelines supplying hot water to each group of fixtures, supply and install valves for the purpose of shutting down the system for isolation and maintenance purposes as specified in “Materials” section. Locate valves behind access panels, within cupboards or within accessible ducts.

10.4 CONNECTION TO FIXTURES

Provide unions at fixtures and appliances to allow removal and replacement without the need to adjust connections.

To pipelines supplying hot water to individual fixtures, supply and install valves for the purpose of shutting down the system for isolation and maintenance purposes as specified in “Materials” section. Connections from the isolation valve to the fixtures shall be by stainless steel braided connectors.

10.5 EXPANSION AND CONTRACTION

Make adequate provision for expansion and contraction.

10.6 NOISE & VIBRATION SUPPRESSION

Supply and install all necessary materials to conform to the “Preliminaries” section.

10.7 TAPWARE

Supply and install all Tapware to comply to the “Sanitary Fixtures, Fittings and Tapware” sections.

10.8 TEMPERATURE CONTROL VALVES

Supply and install temperature control valves to control the hot water temperature to all sanitary fixtures used for personal hygiene strictly to manufacturers requirements and in accordance with AS3500.



DOMESTIC HOT WATER & WARM WATER SERVICES SECTION


All valves to comply with those specified in “Materials Section”.

10.9 HOT WATER GENERATION

Supply and install a Rheem Tankpak system consisting of solar panels, solar storage tank and gas fired instantaneous boost units.

10.10 THERMAL INSULATION

Provide all necessary insulation to hot water piping to prevent heat loss.

Insulation shall not be provided until all relevant tests and inspections have been carried out.

Insulation shall be as specified in “Materials” section.



HOSE REEL SERVICE SECTION


SECTION 11: FIRE HOSE REEL SERVICE

11.1 GENERALLY

Supply, install, test and commission the hose reel service from the point of connection to all fire hose reels all in accordance with the BCA Part E1.4 and AS 1221 and AS 2441 and the fire engineered design brief.

Extend as specified, supplying all fittings, valves, brackets, backflow prevention and sundry items to complete the installation including the hose reels to the approval of the ACT Fire Brigade, the local Council and Project Manager.

After commissioning of the installation submit a certificate to the Contractor certifying the installation has been installed in accordance with the requirements of the National Construction Code of Australia. Provide a flow test certificate to comply to AS1221.

11.2 MATERIALS

The pipework and fittings for the water reticulation shall comply with the requirements of AS1221, AS2441 and AS2419.1.

11.3 FIRE HOSE REELS

Hose reels shall be wall mounted containing 36m of 25mm internal diameter fabric reinforced non-kinking rubber hose with adjustable nozzle. The reels shall be fitted with a gunmetal hub, red baked enamel mild steel side plates and stainless steel spacing rods and shall be in accordance with AS 1221.

The hose shall be led off by a fair lead to give a completely free withdrawal in any direction by one person and mounted 1500mm AFFL to the centre of the hub.

Each hose reels shall be supplied with a minimum 25mm copper water service.

The hose shall operate with a minimum flow rate of 0.41 litres per second and a running pressure of 220 +/- 10 kPa at the outlet of the nozzle when the hose is fully extended.

11.4 PIPE SUPPORTS

Pipes shall be supported at each collar and at spacing as specified in “Preliminaries” section.

11.5 VALVES

All valves to be installed to comply with the “Materials” section.

11.6 NOISE & VIBRATION SUPPRESSION

Supply and install all necessary equipment to suppress noise and vibration within the system to conform to the “Preliminaries” section.

11.7 PAINTING & IDENTIFICATION

Supply and install all necessary equipment to identify the system to conform to the “Preliminaries” section.

11.8 TESTING

All as previously specified under “Preliminaries” section.

11.9 FLUSHING & CLEANING OF FIRE HOSE REEL SERVICES

Flush and clean the system as specified in the “Cold Water” section.



NATURAL GAS SECTION


SECTION 12: NATURAL GAS

12.1 SCOPE

Supply, install, test and commission the gas service from the point of connection into the existing gas supply. Extend as specified supplying all meters, regulators, filters, pipework and sundry items to complete the system to comply to the local gas authorities regulations.

12.1.1 General Requirements

Above ground pipework shall be copper tube Type B to AS 1432.

Below ground pipework to be gas rated Polyethylene equal to Vinidex ‘Tiger Stripe’.

Carry out the gas installation in accordance with the requirements of the regulatory authorities and the following codes:

AS 5601 Gas Installations and all referenced codes and ActewAGL Gas Services and Installation Rules

12.1.2 Testing

Carry out the required tests in the presence of the Contractor and an authorised representative of the relevant authority. Supply the apparatus and materials necessary. Submit the test results in writing.

12.1.3 Painting and Identification

Supply and install all necessary equipment to identify the system to conform to the “Preliminaries” section.

12.1.4 Completion

On completion of installation and testing, turn on isolating and control valves, and purge and charge the installation.

Hand over the installation fully charged with gas.

12.1.5 Accessibility

Locate pipe fittings requiring maintenance or servicing, including control valves, joints designed to enable removal of pipes, and the like, in accessible positions with adequate clearance and ventilation.

12.2 GAS METERING

The Hydraulics Contractor shall contact Jemena for meter installation.

The outlet pressure from the final regulator shall be 5kPa.

12.3 UNDERGROUND INSTALLATION

During backfilling lay a detectable warning tape 300mm above, and for the full length of, all buried gas pipes.

Warning tape: Minimum 100mm width, of durable plastic material, colour to AS1345, with "GAS PIPE UNDER" marked continuously.

Marker plates are required. Provide brass marker plates at ground level at each change of direction in the underground pipeline, engraved to show the direction of the line and name of the service. Inset the marker in a 150 x 150 x 150mm concrete block, with the top set flush with ground level.

12.4 VALVE BOXES

Supply and install valve boxes for access to underground valves. The boxes shall be standard cast iron boxes with hinged covers. Set tops flush with pavement surfaces, or 15mm above unpaved surfaces. Provide an in situ concrete surround 150mm thick, to the top, bottom and sides



NATURAL GAS SECTION


of the box, with exposed surface steel trowelled. Set a shaft of PVC-U pipe beneath each box to give access to the valve. Stamp the box cover with the word "GAS".

12.5 PIPING

If practicable, install piping so that it is concealed within service ducts or non-habitable enclosed spaces and does not appear on external walls. Otherwise, provide metal piping mounted on metal brackets and provide metal cover plates at penetrations. Do not lay across joints between adjoining sections of concrete through which reinforcement does not extend.

Connection between PE and copper to be done in ground.

Gas Pipeline Schedule

Location Pipe Material Grade or Class Jointing Nominal size

In ground Gas rated PE

detectable

PE80B Electrofusion Refer to

drawings

Exposed Internal Copper Type B Silver solder

25%

Refer to

drawings

In wall, chased Not Allowed

12.6 STANDARDS

Referenced Documents: The following Standards are applicable to this Subsection.

AS 1074 Steel tubes and tubulars threaded or suitable for threading with pipe threads of

Whitworth form

AS 1135 Rules for the design, fabrication, installation and inspection of non-ferrous

pressure piping

AS 1216 Classification, hazard identification and information systems for dangerous

goods

AS 1216.1 Part 1: Classification and class labels for dangerous goods

AS 1228 Boilers - Water tube

AS 1271 Valves, water gauges and other fittings for boilers and unfired pressure vessels

AS 1345 Identification of the contents of piping, conduits and ducts

AS 1349 Bourdon tube pressure and vacuum gauges

AS 1375 SAA Industrial Fuel-fired Appliances Code

AS 1585 Capillary and brazing fittings of copper and copper alloy

AS 1697 SAA Gas Pipeline Code

AS 1797 Boilers - Fire tube, shell and miscellaneous

AS 2129 Flanges for pipes, valves and fittings

AS 2430 Classification of hazardous areas

AS 2430.1 Part 1: Explosive gas atmospheres

AS 2700 Colour standards for general purposes

AS 2832 Cathodic protection of metals

AS 2832.1 Part 1: Pipes, cables and ducts

AS 2832.2 Part 2: Compact buried structures

AS 2885 SAA Pipeline Code

AS 3000 SAA Wiring Rules

AS 5601 Gas Installations




SECTION 13: SANITARY FIXTURES, FITTINGS AND TAPWARE

Supply, install and commission all sanitary fixtures, fittings and tapware connected to the hydraulic services.

Refer to CCJ Architects specification for all sanitary fixtures, fittings and tapware.

Allow to take delivery, store as necessary and install. Provide all fixings, necessary cutting, securing of brackets to walls, levelling and connection to various services required for satisfactory operation.

All items shall be new and of first quality, free of chips, cracks and crazing and defects and shall be subject to inspection prior to installation.

Prior to placing orders, obtain guarantees from the manufacturer that any items which craze or show any other defects within twelve months of issue of certificate of practical completion will be replaced providing that such crazing or other defects are not caused by abuse.

Fix and support fixtures strictly to the manufacturers recommendations.

All exposed brackets shall be white enamelled.

All exposed connections shall be chrome plated unless specified.

Refer to the architectural elevations and plans for the room locations and for the setout of all fixtures and tap ware. Do not use the hydraulic drawings for setouts, penetrations or rough in of services.



TENDER SCHEDULE SECTION


SECTION 14: TENDER SCHEDULES

14.1 TENDER BREAK-UP

I / We, the undersigned hereby tender for the supply, delivery, installation, commissioning and

testing of the Hydraulic Services Installation associated with this project in accordance with the

design drawings and specification prepared by Sellick Consultants.

Itemised Lump Sum Tender Price:

Fixed Price

1. Sanitary plumbing and drainage

2. Tradewaste plumbing and drainage $............................

3. Stormwater plumbing and drainage $............................

4. Domestic cold water supply $............................

5. Domestic hot water supply $............................

6. Fire hose reel system $............................

7. Natural gas supply $............................

8. Sanitary, fixtures, fittings and tapware $.........................

9. Preparation of commissioning, inspection and test plans $.........................

10. Fire Integrity Sub-Consultant fees and charges $.........................

11. Authority fees and charges $.........................

12. Surveyor for work as executed verification $.........................

13. Work as executed documentation $.........................

14. Operation and maintenance manuals $.........................

15. Defects period maintenance $.........................

16. 12-month commissioning building tuning (min quarterly intervals) $.........................

17. Final recommissioning after 12 months of operation $.........................

18. Other (specify) $.........................

19. Other (specify) $.....…………….…

20. Other (specify) $......………………

SUBTOTAL $............................

GST $............................

TOTAL $............................

Total price (in words) ……………………………………………………………...................................................

I / We unconditionally guarantee the performance of the installation and completion of the works in accordance

with this specification and accompanying drawings.

Company: ………………………………………………………………………….. Signature: …….……………

Witness: ……………………………………………………………………… Date: ………………………..