Hydraulic Services Quality Specification
Transcript of Hydraulic Services Quality Specification
Hydraulic Services Quality Specification SOFITEL REFURBISHMENT
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DATE
TABLE OF CONTENTS
TABLE OF CONTENTS ..................................................................................................................................... 1
0811 Sanitary fixtures ................................................................................................................................... 2
0812 Tapware ............................................................................................................................................. 12
0814 Hydraulic pumps ................................................................................................................................ 20
0821 Stormwater – buildings ...................................................................................................................... 27
0822 Wastewater ........................................................................................................................................ 35
0823 Cold and heated water ....................................................................................................................... 42
0824 Fuel gas .............................................................................................................................................. 51
0825 Rainwater storage systems ................................................................................................................ 58
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HYDRAULIC TABLE OF CONTENTS
0811 SANITARY FIXTURES
1 GENERAL
1.1 RESPONSIBILITIES
General
General: Provide sanitary fixtures.
Selections: As documented.
1.2 CROSS REFERENCES
General
Requirement: Conform to the following:
- General requirements.
- [complete/delete]
1.3 INTERPRETATION
Abbreviations
General: For the purposes of this worksection the following abbreviations apply:
- WC: Water closet.
1.4 STANDARDS
Authorised products
Standard: Listed in the WaterMark Product Database, unless otherwise required by the Network Utility
Operator.
Standards
Sanitary fixtures: To ATS 5200.
Design for access and mobility: AS 1428.1, AS 1428.2 and AS 1428.3.
Labelling
Water efficiency labelling: Provide only products conforming to and labelled to the Water Efficiency
Labelling Scheme (WELS).
1.5 SUBMISSIONS
Certification
General: Submit evidence that proposed fixtures are listed in the WaterMark Product Database.
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Samples
General: Submit samples listed in the Sanitary fixtures samples schedule.
2 PRODUCTS
2.1 PRODUCTS
Laundry troughs and tubs
Standard: To AS/NZS 1229.
Sealants
General: Use only sealants that do not support microbial growth.
Colour: To match fixture.
Wash basins
Standard: To AS/NZS 1730.
3 EXECUTION
3.1 INSTALLATION
General
Accessories: Use manufacturer's brackets and accessories if these are available and suitable for the
mounting substrate.
Protection: Deliver fixtures to site protected from damage under site conditions by coatings, coverings
and packaging. Remove only sufficient protection to permit installation.
Installation
Connections: Connect to each fixture supply and waste services. Install plumb and level.
Cutting and fitting: If it is necessary to cut and/or fit substrate to install an item, carry out this before the
surface is finished or painted. Remove items when required for painting and protect until re-installed.
Cap or plug the open ends of pipes. Reinstall when painting and finishing is complete.
Substrate and fixings: Before installation, make sure that the substrate to which the fixtures are to be
installed is adequate for the intended loads and fixings methods. In solid walls, confirm adequacy of the
material at fixing locations.
Noggings: In framed construction, provide a solid nogging at each fixing point.
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Vitreous china fixtures
General: Undertake preparation, assembly, connections to water supply and sanitary plumbing,
application of slurries and sealants in sequence. Install the fixture without stressing its attachment
points.
3.2 FIXTURES
Baths
Standard: Install to AS/NZS 2023 Appendix B.
Frame supports: Make sure that all legs or feet are equally loaded.
Position: Set bath firmly with required points fully supported, level and flush.
Ventilation: Provide ventilation to enclosed spaces under each bath.
Size: Aggregate free area of ventilating openings ≥ 5000 mm2.
Wall hung basins
General: Set basins firmly to walls or vanities as detailed. Connect through trap to the drainage system.
Shower cabinets
General: Install to manufacturer's recommendations and details. Make sure that doors fit closely and
accurately. Test for water egress around sides and base.
Shower bases
General: Sit base firmly in place to manufacturer's recommendations and details and connect to
drainage service, ready for following work.
Vanities
General: Install to manufacturer's recommendations and details. Seal top and upstand to wall surface.
Seal cut surfaces to prevent moisture penetration.
3.3 COMPLETION
Damage
General: Inspect all work and replace or repair to factory condition damaged or marked fixtures and
components.
Protective coatings
General: Immediately before the date for practical completion, remove all protective coatings and
stickers and clean surfaces. Check and clean debris from traps.
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4 SELECTIONS
4.1 SANITARY FIXTURES
Baths schedule
Location
A B C
Brand
Catalogue number or model
Material
Size
Type
Wall thickness
Waste outlet size
Installation and support
Overflow
Basins schedule
Location
A B C
Brand
Catalogue number or model
Material
Colour
Bowl size (nominal)
Soap recesses
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Location
A B C
Sides
Supports
Overflow
Number of tap holes
Trap
Location
Rim height from floor
Bidettes and bidets schedule
Location
A B C
Brand
Catalogue number or model
Type
Material
Type
Water supply
Load test to AS 3494 Appendix A
Cisterns schedule
Location
A B C
Brand
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Location
A B C
Catalogue number or model
Type
Material
Colour
Nominal flush (litres)
Water star rating to AS/NZS 6400
Cleaners sinks schedule
Location
A B C
Brand
Catalogue number or model
Trap material
Flush valves schedule
Location
A B C
Brand
Catalogue number or model
Trap material
Laundry tub schedule
Location
A B C
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Location
A B C
Brand
Catalogue number or model
Shower cabinets schedule
Location
A B C
Brand
Catalogue number or model
Shower bases schedule
Location
A B C
Brand
Catalogue number or model
Stainless steel sinks schedule
Location
A B C
Type
Grade
Thickness
Bowls
Number of tap holes
Waste outlet
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Location
A B C
Outlet plug
Trap
Appliance connections
Drainer
- Location
- Surface
- Overall length (sink and drainer)
- Overall width
- Splashback
- Tiling flange
- Fascia
- Drainer backing
- Backing to splashback and fascias
- Sink support
- Bench inset sink
Fixing
Seating
Urinal assemblies schedule
Location
A B C
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Location
A B C
Type
Flushing system
Outlet connector
Foot grating
Material
Supports
Cisterns
Trap
Water star rating to AS/NZS 6400
Fixings
Vanity schedule
Location
A B C
Brand
Catalogue number or model
Material
Top style
Number of tap holes
Cabinet finish
Cabinet hardware
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WC pans, schedule
Location
A B C
Type
Brand
Catalogue number or model
Material
Colour
Seat form
Trap
Water star rating to AS/NZS 6400
Sanitary fixtures samples schedule
Location
A B C
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HYDRAULIC 0811 Sanitary fixtures
0812 TAPWARE
1 GENERAL
1.1 RESPONSIBILITIES
General
General: Provide tapware.
Selections: As documented.
1.2 CROSS REFERENCES
General
Requirement: Conform to the following:
- General requirements.
- [complete/delete]
1.3 STANDARDS
Authorised products
Standard: Listed in the WaterMark Product Database, unless otherwise required by the Network Utility
Operator.
Standards
Sanitary fixtures: To ATS 5200.
Design for access and mobility: AS 1428.1, AS 1428.2 and AS 1428.3.
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Labelling
Water efficiency labelling: Provide only products conforming to and labelled to the Water Efficiency
Labelling Scheme (WELS).
1.4 SUBMISSIONS
Certification
General: Submit evidence that proposed tapware is listed in the WaterMark Product Database.
Samples
General: Submit samples listed in the Tapware samples schedule.
2 PRODUCTS
2.1 PRODUCTS
Accessories
General: Provide escutcheons and cover plates over visible penetrations. Finish and material to match
adjacent fixtures.
Sealants
General: Use only sealants that do not support microbial growth.
Colour: To match fixture.
Tap and valve heads
Metal heads and handles: Provide brass fittings or a suitable bush to prevent electrolysis and growth.
Plastic heads and handles: Provide compact fittings designed to prevent fracture and exposure of jagged
or rough edges.
Vandal-proof heads: Provide vandal-proof or anti-tampering devices for the designated types.
Water efficiency
Shower heads: To AS/NZS 3662 and suitable for the pressures and pressure differences of the supplied
water.
Water efficient tapware: Tested and labelled with their water efficiency rating to AS/NZS 6400.
Thermostatic mixing valves
Standard: To AS 4032.1.
Requirement: Provide thermostatic mixing valves that automatically control the temperature at the
mixed outlet to a presealed temperature and suitable for the number of outlets served by the individual
valve.
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Controls: Incorporate the following:
- A temperature sensitive automatic control that maintains temperature at the pre-selected setting and rapidly shuts down the flow if either supply system fails, or if the normal discharge water temperature is exceeded.
- Hot water flush facility.
3 EXECUTION
3.1 INSTALLATION
General
General: Install to manufacturer's recommendations. Use manufacturer's recommended tools and
templates.
Location
General: Locate to dimensions as documented.
Installation
General: Install level, plumb and true to line in the required location. Make sure moving parts function
freely and without obstruction. Do not modify supplied units.
Seal: Provide resilient seals between fixtures and backnuts.
Fixing: Provide rigid fixing for tapware so that it does not move in normal operation.
Cutting and fitting
General: If it is necessary to cut and/or fit substrate to install, an item carry out this before the surface is
finished or painted. Remove items when required for painting and protect until reinstalled. Cap or plug
the open ends of pipes. Reinstall items when painting and finishing is complete.
Tap positions
General: Locate hot tap to the left of, or above, the cold tap.
3.2 COMPLETION
Adjustment
General: Inspect and adjust tapware for correct and smooth operation. If adjustment does not rectify
incorrect or defective operation, replace units.
Damage
General: Inspect all work and replace or repair to factory condition damaged or marked fixtures and
components.
Foreign matter: Inspect for presence of foreign matter particularly on tap seats. Remove if found.
Replace damaged seats.
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Protective coatings
General: On completion of the tapware installation remove all protective coatings and stickers and clean
surfaces. Check and clean debris from traps.
Thermostatic mixing valves
Field testing and maintenance: To AS 4032.3.
4 SELECTIONS
4.1 TAPWARE
Bath tapware schedule
Type or location
A B C
Brand
Catalogue number or model
Finish
Outlet type
Plug
Spindle
Vandal resistant construction
Water star rating
Basin tapware schedule
Type or location
A B C
Brand
Catalogue number or model
Finish
Outlet type
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Type or location
A B C
Plug
Spindle
Vandal resistant construction
Miniature stop valves
Water star rating
Laundry trough and tub tapware schedule
Type or location
A B C
Brand
Catalogue number or model
Laundry extension arm type
Laundry extension arm extension
Finish
Mounting
Spindle
Vandal resistant construction
Miniature stop valves
Water star rating
Shower tapware schedule
Type or location
A B C
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Type or location
A B C
Brand
Catalogue number or model
Finish
Hand shower
Shower head
Spindles
Vandal resistant construction
Water star rating
Sink tapware schedule
Type or location
A B C
Brand
Catalogue number or model
Finish
Outlet reach
Outlet type
Plug
Spindle
Vandal resistant construction
Miniature stop valves
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Type or location
A B C
Water star rating
Flush valves schedule
Type or location
A B C
Brand
Catalogue number or model
Other tapware schedule
Type or location
A B C
Brand
Catalogue number or model
Finish
Spindle
Vandal resistant construction
Miniature stop valves
Water star rating
Proprietary fittings and fixtures schedule
Type or location
A B C
Brand
Catalogue number or model
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Type or location
A B C
Dimensions
Material and finish
Number off
Tapware samples schedule
Type or location
A B C
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HYDRAULIC 0812 Tapware
0814 HYDRAULIC PUMPS
1 GENERAL
1.1 RESPONSIBILITIES
General
General: Provide pumps.
Selections: As documented.
1.2 CROSS REFERENCES
General
Requirement: Conform to the following:
- General requirements.
- [complete/delete]
1.3 SUBMISSIONS
Products – documentation
Type tests: Required.
Standard: To AS 2417.
Accuracy of measurement: Grade 2 to AS 2417.
Type test records: Submit type test curves for each size and type of pump marked with the duty point.
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2 PRODUCTS
2.1 COMPONENTS
Control panels
General: Provide control panels to suit the controls. Mount switches, and indicating lights on the door.
Mount motor starters, relays and switchgear and terminals on DIN rails inside the cabinet. Run cables in
trunking or looms.
Labelling: Label all components. Number both ends of each cable and number terminal strips to match
the circuit diagram. Provide a laminated circuit diagram inside the cabinet.
Metalwork: Vandal proof cabinet constructed from metallic zinc coated steel with powder coat finish.
Locking: Provide a hinged and lockable door with 2 keys.
Protection: Degree of protection IP54 or better.
Controls – dual pump installations
General: Provide controls to alternate the pumps after each cycle of operation, start the idle pump if the
other fails, and activate an audible alarm and a flashing warning light to indicate a failure.
Alarm bells: Mount on an external wall. Provide alarm mute.
Meters: Provide an hours-run meter to each motor.
Selector: Provide an auto-off-on selector for each pump.
Warning lights: Provide separate lights to indicate power available, run for each pump, fault for each
pump and other faults.
Float switches
Type: Micro switch. Provide one level switch for each liquid level to be detected.
Construction: Double encapsulated hermetic construction designed for long life submerged. Provide a
clamp to permit accurate adjustment of levels.
Cable: Low moisture absorption type.
Marking
General: Provide a robust label: On each pump or pump set showing design flow rate, head,
temperature of pumped medium, casing, impeller and shaft materials.
Motors
Dimensions and performance: To IEC 60072-3.
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Installation: To AS 60034.7.
Motors ≥ 0.75 kW: Three phase, flange mounted.
Overload protection: Provide each motor with overload protection.
Performance:
- Efficiency: Motors documented as high efficiency to AS/NZS 1359.5 Section 3, all other motors to AS/NZS 1359.5 Section 2.
- Power factor at full rated output: ≥ 0.72 for single phase motors, ≥ 0.83 for three phase motors.
Selection: Provide motors selected for the maximum number of starts per hour of the installed system
and to provide efficient, non-overloading pumping sets.
Power rating: At least the maximum power required by the pump when projecting the system resistance
curve to the maximum impeller size for the pump casing size.
Degree of protection: IP54 or better.
Shaft: If the impeller is mounted directly on the motor shaft use grade 416 stainless steel for the shaft.
Pressure vessels
Standard: To AS 2971.
Type: Diaphragm pressure tanks of fabricated steel construction, epoxy coated on metal surfaces in
contact with water. Precharge the tanks with air.
2.2 PUMPS – END SUCTION CENTRIFUGAL
General
Standard: To ISO 2858 or DIN EN 733.
Type: Close coupled pump accepting standard flange-mounted motors.
Casing pressure rating: The greater of 1.6 MPa, and 1.5 times the total of the pump shut-off head plus
the static and system pressures.
Casing material: As scheduled:
- Cast iron to AS 1830 Table1 (ISO 185/JL/250), minimum.
- Bronze, grade 836B.
Balancing: Statically and dynamically balance completed rotating assemblies.
Impellers: One piece shrouded type with machined sealing collars constructed from stainless steel or
grade 836B bronze.
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Shaft: Solid grade 416 stainless steel, machined all over, free of stress concentrations.
Shaft sleeves: Provide a sleeve extending the full length of the seal housing.
Shaft seals: Provide mechanical seals compatible with carbon elements rotating against a ceramic
stationary face.
2.3 PUMPS – IN-LINE CIRCULATING
General
General: Comply with the requirements for Pumps - End-suction centrifugal except as follows.
Mounting: Suitable for mounting with the shaft vertical or horizontal.
Impellers: May be fixed to the motor shaft.
Radial bearings: Ceramic sleeve or ball bearing.
Axial bearings: Carbon/ceramic sleeve or ball bearing.
Pump housings: Cast iron or bronze.
Casing arrangement: Back pullout.
Sealing: Seal motors and electrical connections to protect against ingress of condensation.
2.4 PUMPS – HOT WATER CIRCULATING
General
General: In-line circulator pump and motor with bronze housing and stainless steel or non-ferrous
corrosion-resistant wetted parts.
Control: Provide time clock for after hours control.
2.5 PUMPS – SUBMERSIBLE
Type: Vertical, fully flooded submersible, close coupled, single stage, centrifugal.
Bearings: Deep groove ball type, sealed for life.
Cable: Heavy duty, low water absorption type with replaceable gland seal at the pump.
Casing material: Cast iron to AS 1830 Table1 (ISO 185/JL/250), minimum. Finish outer casing and
immersed equipment and fittings with anti-corrosive protective coatings.
- Degree of protection: Water tight enclosure, IP68.
Float switches: Integral.
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Impellers: Cast iron, non-clog type.
Motors: Three phase, with windings protected by thermistors and moisture sensor. Provide automatic
reset.
Mounting: Provide duckfoot pedestal bases with guide rails or guide wire system.
Nuts and bolts: Stainless steel.
Shaft seals: Replaceable double mechanical type with rotating seal rings of silicon carbide.
Shafts: Stainless steel to ASTM A240/A240M.
Suction screens: Stainless steel or plastic.
2.6 WATER SUPPLY PUMP ASSEMBLY
General
General: Provide automatically controlled self-priming end-suction centrifugal pumps. Factory assemble
the pump and motor on a common base plate with mounting pads.
Noise and vibration: Minimise noise and vibration, using anti-vibration mountings and flexible couplings
on both sides of the pump.
2.7 PRESSURE BOOSTER SYSTEM
Single pressure booster system
General: Provide a pump, motor and pressure vessel package with in-built controls to maintain the
pressure at the pump discharge between the maximum and operating pressures.
Construction: Factory-assemble the unit with pump, pressure vessel, control panel and ancillaries on
steel frame mounted on steel base plate.
Dual pressure booster system
General: Provide a dual system consisting of two identical pump and motor sets, each serving its own
pressure vessel and operated by an interconnected automatic control mechanism. Construction: Factory
assemble the units with pumps, pressure vessels, control panel and ancillaries on steel frames mounted
on steel base plates.
Controls: Provide a pressure switch to sense excessively low suction pressure, shut down the pumps and
signal an alarm. Provide manual reset.
Pressure gauges
General: Provide a pressure gauge to indicate the pressure at the inlet and outlet of the system.
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Automatic tank to mains changeover controls
General: If recovered water including rainwater is used as an alterative supply to mains water, provide
automatic changeover controls.
Operation: Use mains water when the water level in the storage tank is below set level or otherwise
unavailable, demand is low or would cause excessive pump starts. In all other cases use stored water.
Inclusions: Provide low voltage water level switch, dual check valves to prevent cross connection and
motorised valves for mains and stored water changeover and all associated wiring and controls.
2.8 PUMPED DISCHARGE SYSTEM
Description
General: Provide a pumping system consisting of a wet well to which stormwater or subsoil drainage
discharge is gravitated, and from which it is removed by two identical, automatically controlled pumps.
Provide necessary piping, valves, rising main, electric wiring and alarms.
Fully submersible pumps
General: Connect the pump motor to the control panel via a single continuous length cable, with
sufficient slack to allow for adjustment of levels. Provide corrosion-resistant chains attached to the
pump casing, to enable the pump to be raised and lowered from ground level.
Non-submersible (centrifugal) pumps
General: Provide pumps capable of operating safely in a dry state. Provide priming facilities, foot valve
and strainer on the suction line.
Controls
General: In addition to the requirements of Controls – dual pump installations provide float switches to
detect the following and control the pumps:
- Stop duty pump.
- Start duty pump.
- Stop standby pump.
- Start standby pump.
- Overflow (to signal an alarm).
Pressure gauges
General: Provide a pressure gauge to indicate the pressure at the outlet of the pump.
3 EXECUTION
3.1 INSTALLATION
Standards
Hot and cold water service pumps: Install to AS/NZS 3500.1 Section 11.
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Stormwater pumps: Install to AS/NZS 3500.3 Section 9.
Connections
General: Arrange pumps, piping and valves so that individual pumps can be removed with minimal drain
down and disturbance to the connected piping. Support pipes independently of pumps.
Connections: Install vibration isolating couplings in the connecting pipes at the pumps. Provide couplings
selected for a working pressure at least twice the system design pressure.
Vibration mounts
General: Provide corrosion-resistant anti-vibration mounts under each pump. Alternatively, if the pumps
are installed on a base plate the mounts may be installed under the base plate.
Pressure tappings
General: Provide a pressure tapping on the inlet and discharge of each pump.
Fixing
General: Fix all pumps and pump sets to the supporting structure. Use expanding shield anchors for
concrete.
3.2 COMPLETION
Commissioning
General: Commission to the manufacturers' recommendations.
Testing
General: Provide the following tests for each pump and pump set before the date for practical
completion:
- Pump operation: Test for correct pump rotation and operation.
- Automatic changeover: Test changeover sequence under all operational combinations.
- Level controls: Operate pumps, measure levels and adjust if necessary.
- Safety controls: Simulate fault for each safety control.
- Alarms: Simulate alarm condition. Verify correct alarm raised.
- Motors: Measure motor current and adjust motor overloads to suit.
- Completion test: Provide a full operational test to verify compliance.
4 SELECTIONS
4.1 SCHEDULES
Pump schedule
Properties Pump designation
P1 P2 P3
Pump type
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Properties Pump designation
P1 P2 P3
Liquid being pumped
Number of pumps in system
Flow (L/s) per pump
Duty head at flow rate (kPa)
Shut-off head (kPa)
Net positive suction head (NPSH) (m)
Maximum fluid temperature (°C)
Maximum pump speed (r/min)
Minimum efficiency at duty point (%)
Impeller material
Casing material
High efficiency motor
Minimum motor (kW)
HYDRAULIC 0814 Hydraulic pumps
0821 STORMWATER – BUILDINGS
1 GENERAL
1.1 RESPONSIBILITIES
General
General: Provide stormwater installation.
Selections: As documented.
1.2 CROSS REFERENCES
General
Requirement: Conform to the following:
- General requirements.
- Service trenching.
- Roofing – combined and other Roofing worksections.
- Hydraulic pumps for pumped discharge.
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1.3 INTERPRETATION
Definitions
General: For the purposes of this worksection the definitions given below apply.
- Pipe surround: Includes pipe overlay, pipe side support, side zone and haunch zone.
1.4 STANDARDS
Stormwater drainage
Standard: To AS/NZS 3500.3.
1.5 INSPECTION
Notice
Inspection: Give sufficient notice so that inspection may be made at the following stages:
- Excavated surfaces.
- Concealed or underground services.
1.6 SUBMISSIONS
Samples
General: Submit samples of the following:
- Each type of imported pipe bedding material.
- Each type of filter material.
2 PRODUCTS
2.1 MATERIALS
Channel drain, grating and sumps
General: Provide proprietary PVC-U channel drain complete with friction fit grating sections. Provide
matching sumps.
Surface drains – half round pipe
General: Provide surface drains lined with half round pipe, including bedding and jointing. Conform to
the Lined surface drain schedule.
Surface drains – grated trenches
General: Provide precast or cast in situ concrete lined trenches with bitumen coated cast-iron or
galvanized steel gratings.
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3 EXECUTION
3.1 TOLERANCES
General
General: Conform to the Pipeline tolerances table. These tolerances are conditional on falls to outlets
being maintained and no part of a pipeline being at less than the designated gradient.
Pipeline tolerances table
Permissible angular deviation from alignment
Permissible displacement from alignment
Horizontal 1 in 300 15 mm
Vertical 1 in 500 5 mm
3.2 STORMWATER DRAINS
Location
General: Provide stormwater drains to connect downpipes, surface drains, subsoil drains and drainage
pits to the outlet point or point of connection. Make sure that location of piping will not interfere with
other services and building elements not yet installed or built. Subject to the preceding and documented
layouts, follow the most direct route with the least number of changes in direction.
Downpipe connections: Turn up branch pipelines with bends to meet the downpipe, finishing 50 mm
(nominal) above finished ground or pavement level. Seal joints between downpipes and drains.
Laying
General: Lay in straight lines between changes in direction or grade with sockets pointing up hill. If other
pipes are adjacent, set each pipe true to line and complete each joint before laying the next pipe. If work
is not continuous cap open ends to prevent entry of foreign matter.
Identification
General: Lay a detectable strip or plastic tape in the trench after pipe laying, testing and initial
backfilling.
Pipe underlay
General: Bed piping on a continuous underlay of bedding material, at least 75 mm thick after
compaction. Grade the underlay evenly to the gradient of the pipeline.
Chases: If necessary, form chases to prevent projections such as sockets and flanges from bearing on the
trench bottom or underlay.
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Pipe surrounds
General: Place the material in the pipe surround in layers ≤ 200 mm loose thickness, and compact
without damaging or displacing the piping.
Anchor blocks
General: If necessary to restrain lateral and axial movement of the stormwater pipes provide reinforced
concrete anchor blocks at junctions and changes of grade or direction.
Encasement
General: Conform to the Stormwater pipeline schedule.
Location: Encase the pipeline in concrete at least 150 mm above and below the pipe, and 150 mm each
side or the width of the trench, whichever is the greater.
Concrete: Grade N20 to AS 1379.
Thermal movement
General: Arrange piping to accommodate thermal expansion. Provide proprietary expansion joints in
copper and plastic pipes where pipe flexibility is not sufficient to absorb movement. Make sure that
movement does not strain branch connections.
3.3 SUBSOIL DRAINS
General
General: Provide subsoil drains to intercept groundwater seepage and prevent water build-up behind
walls and under floors and pavements. Connect subsoil drains to surface drains or to the stormwater
drainage system as applicable.
Piping: Conform to the Subsoil pipeline schedule.
Trench width: ≥ 450 mm.
Pipe depth: Provide the following minimum clear depths, measured to the crown of the pipe, where the
pipe passes below the following elements:
- 100 mm below formation level of the pavement, kerb or channel.
- 100 mm below the average gradient of the bottom of footings.
- 450 mm below the finished surface of unpaved ground.
Jointing
General: At junctions of subsoil pipes provide tees, couplings or adaptors to AS 2439.1.
Pipe underlay
General: Grade the trench floor evenly to the gradient of the pipeline. If the trench floor is rock, correct
any irregularities with compacted bedding material. Bed piping on a continuous underlay of bedding
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material, at least 75 mm thick after compaction. Lay the pipe with one line of perforations at the
bottom.
Chases: If necessary, form chases to prevent projections such as sockets and flanges from bearing on the
trench bottom or underlay.
Pipe surrounds
General: Place the material in the pipe surround in layers ≤ 200 mm loose thickness, and compact
without damaging or displacing the piping.
Depth of overlay:
- To the underside of the bases of overlying structures such as pavements, slabs and channels.
- To within 150 mm of the finished surface of unpaved or landscaped areas.
Geotextiles
General: Provide polymeric fabric formed from plastic yarn composed of at least 85% by weight
propylene, ethylene amide or vinyledenechloride and containing stabilisers or inhibitors which provide
resistance to deterioration due to ultraviolet light.
Marking: To AS 3705.
Protection: Provide heavy duty protective covering. Store clear of the ground and out of direct sunlight.
During installation do not expose the filter fabric to sunlight for more than 14 days.
Filter socks
General: Provide polyester permeable socks capable of retaining particles of 0.25 mm size. Securely fit
or join the sock at each joint.
3.4 PITS
Finish to exposed surfaces
General: Provide a smooth, seamless finish, using steel trowelled render or concrete cast in steel forms.
Corners: Cove or splay internal corners.
Metal access covers and grates
Standard: To AS 3996.
Cover levels: Top of cover or grate, including frame:
- In paved areas: Flush with the paving surface.
- In landscaped areas: 25 mm above finished surface.
- Gratings taking surface water runoff: Locate to receive runoff without ponding.
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3.5 TESTING
Pre-completion tests
General: Before backfilling or concealing, carry out the following tests:
- Downpipes within buildings: Air or water pressure test to AS/NZS 3500.3 Section 10.
- Site stormwater drains and main internal drains: Air or water pressure test to AS/NZS 3500.3 Section 10.
- Rising mains from pumped discharge: Water pressure test to AS/NZS 3500.3 Section 10.
Leaks: If leaks are found, rectify and re-test.
3.6 COMPLETION
Cleaning
General: Clean and flush the whole installation.
4 SELECTIONS
4.1 STORMWATER
Stormwater pipeline schedule
Type or location
A B C
Pipe material and nominal size
Class
Jointing
Pipe support
Concrete encasement
Pipe bedding schedule
Type or location
A B C
Bedding application
Bedding zone
Bedding type
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Type or location
A B C
Material and grading
Required density
Lined surface drain schedule
Type or location
A B C
Lining material
Size (mm)
Grating
Subsoil pipeline schedule
Type or location
A B C
Trench depth (mm)
Pipe size (nominal)
Pipe type
Pipe class
Other requirements
Pit schedule
Type or location
A B C
Size (mm)
Cover type
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Type or location
A B C
Remarks
HYDRAULIC 0821 Stormwater – buildings
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0822 WASTEWATER
1 GENERAL
1.1 RESPONSIBILITIES
General
General: Provide sanitary plumbing and drainage.
Selections: As documented.
1.2 CROSS REFERENCES
General
Requirement: Conform to the following:
- General requirements.
- Service trenching.
- Sanitary fixtures.
1.3 STANDARDS
Authorised products
Standard: Listed in the WaterMark Product Database, unless otherwise required by the Network Utility
Operator.
Sanitary plumbing and sanitary drainage
General: To AS/NZS 3500.2.
1.4 INSPECTION
Notice
Inspection: Give sufficient notice so that inspection may be made at the following stages:
- Excavated surfaces.
- Concealed or underground services.
1.5 SUBMISSIONS
Certification
General: Submit evidence that proposed tapware is listed in the WaterMark Product Database.
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2 PRODUCTS
2.1 SEWAGE TREATMENT
Septic tanks
General: Conform to the Septic tank schedule.
Standard: To AS/NZS 1546.1.
Certification: Required.
Certification provider: An organisation accredited by the Joint Accreditation System of Australia and
New Zealand (JAS-ANZ).
Effluent disposal
Standard: To AS/NZS 1547.
Agricultural pipes: Perforated plastic pipe to AS 2439.2 Type 3, stiffness class SN2, DN 100.
2.2 TRAPS AND GULLIES
General
Traps: Conform to the Traps schedule.
Location: If possible, conceal traps and wastes in the fabric of the building.
Gullies: Conform to the Gullies schedule.
Inspection chambers and sumps
General: Conform to the Inspection chamber and sumps schedule.
3 EXECUTION
3.1 SANITARY PLUMBING
Location
General: Verify location and invert of piping before commencing installation. Make sure that location of
piping will not interfere with other services and building elements not yet installed or built. Subject to
the preceding and documented layouts, follow the most direct route with the least number of changes
in direction.
Ducts: If installed in ducts, locate and fix stacks, wastes and pipes independently of other services.
Arrange so they are easily accessible and removable throughout their entire length.
Piping: Conform to the Sanitary plumbing piping schedule.
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Discharge from air handling systems
Trays, sumps and plumbing: To AS/NZS 3666.1.
Thermal movement
General: Arrange piping to accommodate thermal expansion. Provide proprietary expansion joints in
copper and plastic pipes where pipe flexibility is not sufficient to absorb movement. Make sure that
movement does not strain branch connections.
Vent pipes
General: Staying to roof: If fixings for stays penetrate the roof covering, seal the penetrations and make
watertight.
Terminations: Provide vent cowls of the same material as the vent pipe.
Wet area floors
General: Where drainage connections pass through wet area floors, terminate 4 mm below the
substrate surface.
3.2 SANITARY DRAINAGE
Laying
General: Lay in straight lines between changes in direction or grade with sockets pointing up hill. If other
pipes are adjacent, set each pipe true to line and complete each joint before laying the next pipe. If work
is not continuous cap open ends to prevent entry of foreign matter.
Piping: Conform to the Sanitary drainage piping schedule.
Pipeline identification
General: Lay detectable plastic warning tape, 300 mm above buried piping, for the full length of the
piping.
3.3 PIPING
Finishes
General: Finish exposed piping, including fittings and supports, as follows:
- In internal locations such as toilet and kitchen areas: Chrome plate copper piping to AS 1192 service condition 2, bright.
- Externally, and steel piping and iron fittings internally: Paint.
- In concealed but accessible spaces (including cupboards and non-habitable enclosed spaces): Leave copper and plastic unpainted except for identification marking. Prime steel piping and iron fittings.
Valves: Finish valves to match connected piping.
Supports
General: Conform to the Pipe support schedule.
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Tolerances
General: Conform to the Pipeline tolerances table. These tolerances are conditional on falls to outlets
being maintained and no part of a pipeline being at less than the designated gradient.
Pipeline tolerances table
Permissible angular deviation from alignment
Permissible displacement from alignment
Horizontal 1 in 300 15 mm
Vertical 1 in 500 5 mm
Trade waste
General: Conform to Sanitary plumbing, Sanitary drainage and the following.
- Piping: Conform to the Trade waste piping schedule.
- Disposal: Provide necessary sumps or interceptors.
Laboratory wastes
General: If there are chemically corrosive effluent wastes, provide compatible traps and waste
connections, and drain to a treatment pit.
Trap material: Conform to the Laboratory traps schedule.
3.4 TESTS
Pre-completions tests
Before backfilling or concealing: Test to AS/NZS 3500.2 Section 13.
Leaks: If leaks are found, rectify and re-test.
3.5 COMPLETION
Cleaning
General: On completion clean and flush the whole installation.
4 SELECTIONS
4.1 WASTEWATER
Sanitary plumbing piping schedule
Type or location
A B C
Pipe material
Nominal size
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Type or location
A B C
Grade or class
Jointing method
Sanitary drainage piping schedule
Type or location
A B C
Pipe material
Nominal size
Grade or class
Jointing method
Bedding material
Trade waste piping schedule
Type or location
A B C
Pipe material
Nominal size
Grade or class
Jointing method
Bedding material
Pipe support schedule
Type or location
A B C
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Type or location
A B C
Type
Maximum spacing
Fixing method
Traps schedule
Type or location
A B C
Type
Material
Dimensions (mm)
Gullies schedule
Type or location
A B C
Overflow gully
Size (mm)
Cover type
Inspection chamber and sumps schedule
Type or location
A B C
Size (mm)
Cover type
Remarks
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Septic tank schedule
Type or location
A B C
Form
Material
Capacity (L)
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HYDRAULIC 0822 Wastewater
0823 COLD AND HEATED WATER
1 GENERAL
1.1 RESPONSIBILITIES
General
General: Provide cold water and heated water systems.
Selections: As documented.
1.2 CROSS REFERENCES
General
Requirement: Conform to the following:
- General requirements.
- [complete/delete]
1.3 INTERPRETATION
Definitions
General: For the purposes of this worksection the definitions given below apply.
- Heated water: Water that has been intentionally heated. It includes hot water and warm water.
- Mineral wool (including glasswool and rockwool): Entangled matt of fibrous non-crystalline material derived from inorganic oxides or minerals, rock, slag or glass, processed at high temperatures from a molten state.
1.4 STANDARDS
General
Water supply: To AS/NZS 3500.1.
Heated water supply: To AS/NZS 3500.4.
Backflow prevention: To AS/NZS 2845.1 and AS 2845.2.
Copper pipe: To AS 4809.
Microbial control: To AS/NZS 3666.1 and AS/NZS 3666.2 and the recommendations of SAA/SNZ HB 32.
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Authorised products
Standard: Listed in the WaterMark Product Database, unless otherwise required by the Network Utility
Operator.
Installation of mineral wool insulation
General: Comply with the ICANZ Industry Code of Practice for the Safe Use of Glass Wool and Rock Wool
Insulation.
Marking: Deliver mineral wool products to site in packaging labelled FBS1 BIOSOLUBLE INSULATION.
Labelling
Water efficiency labelling: Provide only products conforming to and labelled to the Water Efficiency
Labelling Scheme (WELS).
1.5 INSPECTIONS
Notice
Inspection: Give sufficient notice so that inspection may be made of the following:
- Excavated surfaces.
- Concealed or underground services.
1.6 SUBMISSIONS
Certification
General: Submit evidence that proposed components are listed in the WaterMark Product Database.
Samples
General: Submit samples of accessories identified by proprietary item, including the following:
- Valves.
- Instruments, including gauges and thermostats.
Type-test reports
General: Submit type-test reports from a Registered testing authority to verify conformance as follows:
- Spread of flame index: To AS/NZS 1530.3.
- Smoke developed index: To AS/NZS 1530.3.
- Flammability index: To AS 1530.2.
2 PRODUCTS
2.1 PRODUCTS
Pressure control valves
General: Provide reduction valves, pressure limiting valves, or ratio valves, which produce the necessary
reduction in pressure.
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Backflow prevention devices
General: Conform to the Testable backflow prevention devices schedule.
Standard: To AS/NZS 2845.1 and AS 2845.2.
Line strainers
Type: Low resistance, Y-form bronze bodied type, with screen of dezincification resistant brass,
corrosion-resistant stainless steel, or monel.
Screen perforations: 0.8 mm maximum.
Pressure gauges
General: Provide gauges with full scale reading in kPa, a minimum nominal diameter of 63 mm and with
a full scale value between 130% and 200% of the working pressure.
Bourdon tube gauges: To AS 1349.
Accuracy grade: Industrial.
Installation: Comply with the recommendations of AS 1349 Appendix B. Isolate from pump pulsations
and provide with a gauge cock.
Water tanks
General: To ATS 5200.026.
Materials: To AS/NZS 3500.1 clause 2.5.
Polyethylene water tanks: To AS/NZS 4766.
Temperature: Do not exceed the rated service temperature of the tank material.
Flywire: Provide plastic flywire covering to overflow and vent pipes.
Water meters
Standard: To the AS 3565 series.
Installation: To the requirements of the Network Utility Operator.
3 EXECUTION
3.1 PIPING
Location
Mains connection: Connect the cold water supply system to the Network Utility Operator's main
through a stop valve and meter.
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Cold water system: Provide the cold water supply system, installed from the meter to the draw-off
points or connections to other services. Conform to the Piping system schedule.
Heated water system: Provide the heated water system, installed from the cold water connection points
to the draw-off points or connections to other services. Conform to the Piping system schedule.
Finishes
General: Finish exposed piping, including fittings, cover plates and supports, as follows:
- Chrome plate copper piping to AS 1192 service condition 2, bright in internal locations such as toilet and kitchen areas:
- Paint external above ground piping, and internal steel piping and iron fittings exposed to view.
- In concealed but accessible spaces (including cupboards and non-habitable enclosed spaces): Leave copper and plastic unpainted except for identification marking. Prime steel piping and iron fittings.
- Valves: Finish valves to match connected piping.
Fittings and accessories
General: Provide the fittings necessary for the proper functioning of the water supply system, including
taps, valves, backflow prevention devices, pressure and temperature control devices, strainers, gauges
and automatic controls and alarms.
Provision for dismantling: Arrange piping by the provision of unions or similar so that valves, taps and
other maintainable components can be removed for maintenance without disturbing or cutting adjacent
piping.
Material identification marks
General: Pipes with grade or class identification markings: Install so that the markings are visible for
inspection.
Pipes under pressure embedded in concrete
General: Use only copper pipe and the minimum number of joints. Pressure test and rectify leaks before
the concrete is poured.
Valve spindles
General: If practicable, install valve spindles in a vertical position.
3.2 PIPING INSULATION
Location
General: Insulate all non-chrome plated heated water piping, fittings and valves.
Application: Fit insulation tightly to piping surfaces without gaps. Close butt ends of insulation sections.
Minimise number of joints. If the insulation is in half-sections, make only half-circumferential joints at
any one place. Seal longitudinal seams in foil laminate and fix insulation at maximum 500 mm centres
with polypropylene, zinc-coated steel or aluminium straps.
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Unions and other items requiring service: Install the insulation so that it is readily removable.
Fittings: Provide insulation with thermal resistance at least equal to than of the adjacent piping
insulation.
Insulation material
General: Provide insulation material as listed in Piping insulation schedule.
Mineral wool: Resin-bonded to form tubular sections faced with factory bonded aluminium foil
laminate.
Polyester: Moulded tubular sections faced with factory bonded aluminium foil laminate or integral
polyester scrim.
Polyolefin foam: Cross-linked closed cell polyolefin foam faced with factory bonded aluminium foil
laminate.
Fire hazard properties
Spread of flame index: 0 where tested to AS/NZS 1530.3.
Smoke developed index: ≤ 3 when tested to AS/NZS 1530.3.
Flammability index of facing materials: ≤ 5 when tested to AS 1530.2.
Aluminium foil laminate sheet
Standard: Heavy duty to AS/NZS 4200.1.
Aluminium foil laminate tape
Adhesive: Non-toxic, high tack synthetic pressure sensitive type.
Liner: Silicone coated paper.
Backing: Aluminium foil laminate.
Minimum width: 50 mm.
Mechanical properties: Equal to or better than the polyethylene tape serial number F11 referenced in
AS 1599.
Metal sheathing
General: Provide metal sheathing to all piping insulation:
- In plant rooms.
- Where exposed to weather.
- Where exposed to view.
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- Where subject to mechanical damage.
- On valves, pipeline components and pumps in sheathed piping.
General: Cover piping with metal sheathing sprung over the insulation in one piece with laps at least
30 mm wide, and fastened with self tapping screws or snap head rivets at 150 mm 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 non-setting mastic.
Material: 0.5 mm thick metallic-coated steel sheet.
Surface preparation
General: Clean the surfaces to remove scale, rust, grease and dirt and prepare surfaces to suit the
insulation. Restore surface coatings, which have been damaged or affected by welding.
Insulation at pipe supports
General: Provide supports formed to fit around the insulation.
Protection: For pipes ≥ DN 25 either:
- Protect the insulation at the support point with metal sheathing extending sufficient distance both sides of the support so the insulation thickness is reduced by < 10%.
- Replace the insulation at the support point with a shaped timber or cork spacer block. Butt the insulation up to the spacer block and seal with silicone compound. Clad the block and insulation in 0.5 mm metallic-coated steel sheet extending 100 mm both sides of the support.
3.3 PITS
General
General: Install below ground water meters, stop valves and control valves, in concrete access pits with
removable pit covers.
Construction
Internal dimensions: To give 300 mm clear space all around the fittings in the pit.
Concrete: Grade N20 to AS 1379, 100 mm thick, reinforced with F82 fabric.
Pit covers: To AS 3996.
Installation
General: Grade floor to a point on one side and drain to the stormwater drainage system. Carry the pit
walls up to 50 mm above finished ground level. Cast in the pit cover frame flush with the top. Trowel the
top smooth.
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3.4 MARKING
Notice plate
General: Provide a notice plate containing condensed emergency instructions, legibly printed or
engraved on durable material resistant to defacement, at least 3 mm thick or mounted on board at least
3 mm thick, permanently fixed in a convenient position at the control valves.
3.5 VALVE BOXES
General
General: Provide cast-iron valve boxes with removable covers for access to underground gate valves.
Provide cast-iron sluice valve covers for access to sluice valves.
Installation
General: Set beneath each box a shaft formed of PVC-U pipe to give clear access to the valve wheel or
spindle. Set top flush with pavement surface, or 15 mm above unpaved surfaces, and encase in formed
concrete box 150 mm thick, with top surface trowelled smooth.
3.6 TESTING
Pre-completion tests
Pressure tests: Before insulation is applied to joints pressure test piping to AS/NZS 3500.1 and
AS/NZS 3500.4 as appropriate. If leaks are found, rectify and re-test.
Cross connections: Isolate systems individually and check for cross connections.
Backflow prevention: To AS/NZS 3500.1.
Tapware: Check for leaks.
Completion test
General: Provide a full operational test to verify compliance with documented requirements.
3.7 COMPLETION
Commissioning
Strainers: Remove, clean and replace strainer baskets.
Cleaning: To AS/NZS 3500.1 Appendix H.
Disinfection: Disinfect to AS/NZS 3500.1 Appendix I.
Cold water systems: Test and commission to AS/NZS 3500.1 Section 16.
Heated water systems: Test and commission to AS/NZS 3500.4 Section 11.
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Testable backflow prevention devices: Test and commission to AS 2845.3 by a licensed plumber with
backflow device accreditation. Tag and certify to the requirements of the Network Utility Operator.
Charging
Completion: On completion of installation, commissioning, testing and disinfection, fill the system with
water, turn on control and isolating valves and the energy supply and leave the water supply system in
full operational condition.
Maintenance
Heated water systems: To AS/NZS 3500.4 Section 12 and AS/NZS 3666.2.
Maintenance manuals: To AS/NZS 3666.2.
4 SELECTIONS
4.1 COLD AND HEATED WATER
Piping system schedule
Type or location
A B C
Cold water
Material
Nominal size
Jointing method
Warm water
Material
Nominal size
Jointing method
Hot water
Material
Nominal size
Jointing method
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Isolating valves schedule
Type or location
A B C
Function
Description
Testable backflow prevention devices schedule
Type or location
A B C
Cross-connection hazard rating
Description
Piping insulation schedule
Type or location
A B C
Material
Minimum R-value of insulation m² K/W
Sheathing material
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HYDRAULIC 0823 Cold and heated water
0824 FUEL GAS
1 GENERAL
1.1 RESPONSIBILITIES
General
General: Provide fuel gas installations.
Gas type: As documented.
Selections: As documented.
1.2 CROSS REFERENCES
General
Requirement: Conform to the following:
- General requirements.
- [complete/delete]
1.3 STANDARDS
Reticulated gas systems
General: To AS 5601.
Gas equipment
Standard: To AS 3645.
Industrial and commercial gas-fired appliances
General: To AS 3814.
Steel mains and services
Maximum operating pressure not more than 1050 kPa: To AS/NZS 4645.2.
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Flue cowls
General: To AS 4566.
1.4 INSPECTION
Notice
Inspection: Give sufficient notice so that inspection may be made at the following stages:
- Excavated surfaces.
- Concealed or underground services.
1.5 SUBMISSIONS
Certificate of appliance approval
Appliances with gas inputs < 500 MJ/hour: For each appliance where an approval code exists, submit a
certificate from the manufacturer stating that the appliance has AGA/ALPGA approval for operation with
the designated gas type.
Exposed piping
General: Submit proposals for location.
Production tests
Storage tanks: Submit evidence of testing to AS 1210.
2 EXECUTION
2.1 PIPING
Concealment
General: 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.
Piping
General: Conform to the Gas pipeline schedule.
Pipeline components
Valves: Conform to the Piping valve schedule.
Regulators: Conform to the Piping regulator schedule.
Finishes
General: Finish exposed piping, including fittings and supports, as follows:
- In internal locations such as toilet and kitchen areas: Chrome plate copper piping to AS 1192 service condition 2, bright.
- Externally, and steel piping and iron fittings internally: Paint.
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- In concealed but accessible spaces (including cupboards and non-habitable enclosed spaces): Leave copper and plastic unpainted except for identification marking. Prime steel piping and iron fittings.
Valves: Finish valves to match connected piping.
2.2 VALVE BOXES
General
General: Provide cast-iron valve boxes with removable covers for access to underground valves.
Identification: Mark the box covers with the word GAS.
Installation
General: Set beneath each box a shaft formed of PVC-U pipe to give clear access to the valve wheel or
spindle. Set top flush with pavement surface, or 15 mm above unpaved surfaces, and encase in formed
concrete box 150 mm thick, with top surface trowelled smooth.
2.3 WALL BOXES
General
General: Provide wall boxes to house above ground valves and regulators.
Preferably show the location, size and finish on the drawings.
Construction
Body: 1.2 mm galvanized steel plate continuous welded box construction with leading edge folded twice
at 90 to form 25 x 25 mm frontal surround.
Fixing: Fix to masonry backing with four 10 mm galvanized masonry bolts.
Drainage and ventilation relief: Set the bottom of the box to fall outward. Form four 10 mm diameter
holes in the frontal surround section at box floor level.
Sleeves: Provide, to the box floor inlet and outlet pipes, sleeves formed of 1.2 mm thick steel pipe with
1.2 mm galvanized flanges to pipe diameter plus 50 mm. Bed each flange on epoxy mortar and rivet to
the floor of the box with four 3 mm diameter rivets.
Doors to boxes: Metal frame, glazed with 2.5 mm clear float glass. Provide lock, keys and two 100 mm
brass hinges.
Marking: Adhere to the glass a 200 x 100 mm white laminated plastic label, engraved with red letters IN
CASE OF EMERGENCY BREAK GLASS AND SHUT VALVES.
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2.4 PITS
General
General: If below ground, house control valves and regulators in concrete access pits with removable pit
covers.
Construction
Internal dimensions: To give 300 mm clear space all around the fittings in the pit.
Concrete: Grade N20 to AS 1379, 100 mm thick, reinforced with F82 fabric.
Pit covers: To AS 3996.
Marking: Mark pit covers with the word GAS.
Installation
General: Grade floor to a point on one side and provide a gravity drain to remove water from the pit. Do
not connect the drain to other substructures or drains. Carry the pit walls up to 50 mm above finished
ground level. Cast in the pit cover frame flush with the top. Trowel the top smooth.
2.5 LPG STORAGE SYSTEMS
Tank LPG storage
General: Conform to the LPG storage tank schedule.
Tank colour: White.
Certificate holders: Provide a galvanized steel pipe, one end fitted with a brass plug, one end threaded
and fitted with a threaded brass cap. Weld to the tank support member.
Cylinder LPG storage
General: Conform to the LPG storage cylinder schedule.
Fittings: Supply cylinders with regulators which have AGA/ALPGA approval.
Hoods
General: Provide a weatherproof protective steel cover to the valve and regulators of 450 L capacity
cylinders, together with hinge pins, padlock and key.
Function: For storage of current storage system approval and test certificates.
Marking: Mark the threaded cap with the phrase LPG CERTIFICATES.
Notices and signs
General: Required.
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2.6 MARKING
Underground installations
General: During backfilling lay plastic warning tape 300 mm above buried piping, for the full length of
the piping.
Warning tape: Minimum 100 mm width, with GAS PIPE UNDER marked continuously.
Marker plates: Provide galvanized steel or 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 marker plates in 150 x 150 x 150 mm concrete blocks, with the tops set flush with ground
level.
2.7 TESTING
Pre-completion tests
General: Immediately before putting the fuel gas installation into operation, test the installation in
conformance with AS 5601 Appendix E.
2.8 MANUALS
General
General: Submit recommendations for the operation, care and maintenance of gas appliances, storage
tanks, valves, regulators and their associated fittings.
2.9 COMMISSIONING
General
General: On completion of installation and testing, turn on isolating and control valves, and purge and
charge the system.
Purging: Comply with the recommendations of AS 5601 Appendix D.
Appliances: Commission appliances.
Charging
Immediately before the date of practical completion: Fully charge the system with gas.
LPG systems: Fill gas storage containers and replace gas used in testing.
3 SELECTIONS
3.1 FUEL GAS
Piping valve schedule
Properties Location
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A B C
Function
Type
Operation
Material
Piping regulator schedule
Properties Location
A B C
Function
Type
Operation
Material
Gas pipeline schedule
Properties Location
A B C
Pipe material
Grade or class
Jointing
Nominal size
LPG storage tank schedule
Properties Location
A B C
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Properties Location
A B C
Tank capacity (L)
Liquid fill valve
Regulator
Liquid level gauge
Multivalve
Draw
Relief valve
Liquid take off fitting
Inspection plug
LPG storage cylinder schedule
Properties Location
A B C
Number of cylinders
Total capacity (L)
Method of securing and supporting
Enclosure
Fittings
Cylinder valve and regulator
- Function
- Type
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Properties Location
A B C
- Operation
- Material
3.2 APPLIANCES
Appliance schedule
Location Appliance
HYDRAULIC 0824 Fuel gas
0825 RAINWATER STORAGE SYSTEMS
1 GENERAL
1.1 RESPONSIBILITIES
General
General: Provide rainwater storage systems and ancillaries.
Selections: As documented.
1.2 CROSS REFERENCES
General
Requirement: Conform to the following:
- General requirements.
- [complete/delete]
1.3 STANDARDS
General
Stormwater drainage: To AS/NZS 3500.3.
Rainwater supply: To AS/NZS 3500.1.
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Metal tanks and rainwater goods: To AS/NZS 2179.1.
Design and installation: To the recommendations of SAA HB 230.
Authorised products
Standard: Listed in the WaterMark Product Database, unless otherwise required by the Network Utility
Operator.
Tanks: To ATS 5200.026.
Tank marking: Display the WaterMark symbol and other marking required by ATS 5200.026.
1.4 SUBMISSIONS
Manufacturer's warranty
General: Submit the tank manufacturer's warranty naming the Principal as warrantee. Include a copy of
the warranty in the operation and maintenance manual.
2 PRODUCTS
2.1 RAINWATER TANKS
General
General: Tanks to be structurally sound and watertight.
Openings: Designed to resist human load bearing forces and to prevent the inappropriate entry of
humans, animals, insects surface water, ground water and rubbish.
Accessories: Provide the accessories needed to complete the installation, including inlet and outlet
connections, and flywire screened overflow and access hole.
Accessory materials: Select from:
- Ultraviolet light resistant plastic.
- Corrosion resistant metal. Do not use copper or copper alloys with metallic coated steel tanks.
- The same material as the tank.
Access hole: Provide a vermin proof, child proof access hole above the high water level and cover with
either a strainer or a lid fixed securely to the tank.
Accessories: Include the following:
- Floating outlet to draw water from the upper part of the tank.
- Tight fitting lids or screens with ≤ 1 mm mesh at all openings.
- Flap valves at every opening to the tank.
- Calmed inlet to the tank to prevent stirring sediment.
- Overflow siphon to skim surface contaminants.
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- Warranty: Provide a manufacturer’s warranty on the tanks.
Tanks and accessories for potable water
Standard: If the tank is to contain potable water, conform to AS 2070 with testing of materials to
AS/NZS 4020.
Underground tanks
General: Provide tanks designed for installation underground and to withstand the anticipated loading
from above and to prevent the entry of ground and surface water.
Separation from waste treatment installations: To AS/NZS 1547.
Connections
General: Reinforce the tank wall to resist loads imposed by the connected piping.
Outlet size:
- Tanks ≤ 6600 L: 20 mm minimum.
- Tanks > 6600 L: 25 mm minimum.
Overflow: Sized to handle not less than the maximum rate of rainwater inflow.
2.2 POLYETHYLENE TANKS
General
Standard: To AS/NZS 4766.
2.3 COATED STEEL TANKS
Roof
Type: Select from:
- Conical.
- Flat and back propped internally with a tightly fitting length of PVC-U downpipe.
Material
General: Conform to the Coated steel tanks material table.
- Top and sides: Metallic-coated steel with polymer film to AS 2070 on the inside and prepainted on the outside.
- Base: Metallic-coated steel with polymer film to AS 2070 on inside and outside.
Coated steel tanks material table
Component Minimum base metal thickness (mm)
Grade to AS 1445
Coating class to AS 1397
Profile/Pitch x no. of corrugations ≤ 3 m diameter
or ≤ 17 000 L > 3 m diameter or > 17 000 L
Base 0.6 0.8 G 300 Z 275 or AZ 150 Flat
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Component Minimum base metal thickness (mm)
Grade to AS 1445
Coating class to AS 1397
Profile/Pitch x no. of corrugations ≤ 3 m diameter
or ≤ 17 000 L > 3 m diameter or > 17 000 L
Walls 0.6 0.8 G 250 Z 600 76 x 8
AZ 200 76 x 10.5
Top 0.6 0.6 G 300 Z 275 Flat
AZ 150 Conical
Jointing
General: Conform to the recommendations of the metallic-coated steel manufacturer.
2.4 REINFORCED CONCRETE TANKS
General
Type: Precast or in situ.
Standard: To AS 3735.
Design and certification of construction: By a professional engineer.
2.5 BLADDER TANKS
General
Type: Proprietary plastic bladder type.
Material: Reinforced polymer conforming to AS 2070, resistant to puncture and microbial attack.
2.6 FIRST FLUSH DIVERTER
General
General: Provide a first flush diverter. Arrange to drain completely.
Sizing: Select for ≥ 20 L/100 m2 rainwater catchment area.
Construction: Corrosion resistant and compatible with the rainwater plumbing and tank.
Discharge: Discharge waste water from the first flush diverter either:
- If permitted by the local authority, onto grassed areas away from tank and building footings.
- To the stormwater installation.
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2.7 RAINWATER FILTRATION
Tank inlet
General: Provide an easily cleanable filter to treat rainwater prior to the entry to the tank.
Mesh size: ≤ 1 mm.
Tank outlet
Filtration and treatment: As documented.
Drinking water filters: To AS/NZS 3497 and the requirements of the statutory authorities having
jurisdiction.
2.8 PUMPS
General
General: Provide pumps as documented.
3 EXECUTION
3.1 INSTALLATION
General
General: Provide structural support to withstand the mass of the tank when full without deformation or
excessive settling.
Connecting piping: Support independently of the tank. Provide a 300 mm long section of reinforced
flexible hose to prevent piping exerting a load on the tank.
Overflow: Pipe to discharge away from the tank.
Arrangement: Prevent the entry of sunlight to the interior of the tank.
Backflow prevention
Standard: To AS/NZS 3500.1 and the requirements of the Network Utility Operator.
Requirement: Prevent backflow from the rainwater storage system to other potable water supplies.
3.2 ABOVE GROUND TANK INSTALLATION
General
Restraint: Restrain the tank to prevent movement, when empty, caused by wind and other loads.
Base: Provide a level base with gaps not exceeding 10 mm, free of sharp projections and projecting
beyond the edge of the tank at all points.
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Polyethylene tanks
Support: Trim and compact the ground and place a level bed of sand at least 50 mm thick.
Coated steel tanks
Support: Fully support the tank on a self draining timber or concrete base.
Corrosion protection:
- Prevent contact with dissimilar metals.
- Arrange so that no part of the tank is below ground level and so that adjacent ground surfaces fall away from the tank.
- Do not use sharp objects inside the tank. Remove swarf with a magnet if drilling or cutting.
Reinforced concrete tanks
Support: Trim and compact the ground.
Bladder tanks
Support: Locate on level base free from sharp objects. Install with manufacturer's supporting frame.
Relief: Provide over-pressurising relief and air vent.
3.3 UNDERGROUND TANK INSTALLATION
General
Access: Arrange to permit easy inspection, cleaning and draining.
Sealing: Prevent the entry of groundwater, surface run-off and other contaminants. Prevent entry of
stormwater surcharge via the tank overflow.
Access openings: Lockable, 150 to 450 mm diameter. Unless watertight, locate openings 150 mm above
finished surface level. Conform to occupational health and safety requirements.
External pressure: Prevent superimposed external pressure exceeding 0.25 m head of water (2.5 kPa)
above the manufacturer's maximum recommended fill level.
Excavation and backfilling
General: Keep excavations free of surface water. After placing the tank, backfill with sand.
Sand backfilling
Type: Chemically inert sand, free from foreign matter such as salt, organic matter and clay lumps, and
graded.
Placing: Place sand backfilling in layers not more than 200 mm thick.
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Ballasting
General: If ballasting is necessary to prevent flotation, fill the tank with water before backfilling and
provide a concrete ballast collar.
3.4 MARKING
General
Labelling: If rainwater is not treated to potable quality, label rainwater piping and outlets to
AS/NZS 3500.1.
3.5 COMMISSIONING
General
Cleaning: Flush the rainwater system. Wash and flush tanks to remove manufacturing and other
contaminants.
3.6 MAINTENANCE
Annual maintenance
Requirement: Provide the annual maintenance to SAA HB 230 Table 10.1 at the following times:
- If the defects liability period is less than 12 months: Within one month before the end of the end of the defects liability period.
- If the defects liability period is 12 months or longer: Annually.
4 SELECTIONS
4.1 TANK SCHEDULE
Rainwater tank schedule
Rainwater tank Rainwater tank designation
A B C
Tank material
Tank shape
Location
Net capacity (litres)
Approximate dimensions
Minimum manufacturer's warranty period (years)
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4.2 FILTER SCHEDULE
Rainwater filter schedule
Properties Filter
Outlet - nonpotable water Outlet - potable water