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The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included. |
Scope of work includes: | interpretation of plans and specifications, and sizing and documenting layout of pump systems, for applications including residential, commercial and industrial and new projects or an existing structure being renovated, extended, restored or maintained. |
Pump types may include: | centrifugal pumps circulating constant flow variable speed pumps macerator pumps motor pumps multiple impeller pumps piston pumps solid and semi-solid pumping systems submersible pumps vacuum and multi-stage pumps variable speed pumps warm and hot water. |
Pump duties may include: | delivery flow head velocity. |
Design requirements may include: | architectural specifications builder specifications owner requirements specialist water use applications. |
Cost-benefit and life cycle analysis may include: | balancing initial cost with durability, longevity maintenance and ongoing fuel and energy cost requirements comparison of the range of suitable materials, pumps and system designs available to enable cost-effective choices to be made without compromising integrity of project. |
Statutory and regulatory requirements may include: | Acts and regulations local and state government policies. |
Australian and New Zealand standards may include: | AS/NZS3500 National plumbing and drainage set AS2419 Fire hydrant installations - system design, installation and commission AS/NZS1547 On-site domestic wastewater management AS2200 Design charts for water supply and sewerage BCA. |
Manufacturer requirements include: | material specifications pump tables sizing tables technical and trade manuals. |
Desktop study can include collection and interpretation of existing data for design purposes from: | architectural and building plans council plans developer plans other documents and reports as available. |
Flow and pressure tests may include: | interpretation of flow and pressure tests conducted by a contractor on-site measurement of flow (l and s), velocity (m and s) and pressure (kPa). |
Performance requirements may include: | flow, velocity, pressure and discharge requirements, established using Australian and New Zealand standards and local authority plans. |
Pump, pump controls and pumproom requirements may include: | automatic controls impeller sizing inlet and outlet design requirements installation and mounting requirements pump sizing and selection space requirements valve requirements. |
Layout of pipework systems may include: | dual feed ring main single pipe. |
Fittings and valves may include: | fittings: bends tees unions valves: backflow prevention excess pressure valves isolating pressure limiting pressure reduction strainers vibration couplings. |
Energy sources may include: | diesel and diesel-electric generator sets petrol single phase three phase. |
Pump plinths may include: | bases designed to resist forces exerted by pump concrete masonry timber. |
Pump mountings may include: | anchoring bolts motor pump pump mountings and adjustments rubber and synthetic pump mounts vibration couplings. |
Materials may include: | acrilonitrile butadiene styrene (ABS) composite pipework copper cross-linked polyethylene fittings and fixtures impeller materials polybutylene protective coatings pump construction steel. |
Jointing methods may include: | brazing compression flaring mechanical joints soldering threaded. |
Installation requirements include: | clipping installation details jointing requirements level of workmanship mounting. |
Delivery systems may include: | constant flow variable speed pump downfeed hydropneumatic pressure ratio upfeed. |
Plans may include: | axonometrics cross-sections details elevations isometrics schematics, which may be produced using: computer generation Indian ink pencil pigment liner sections. |
Specification may include: | bedding clipping jointing manufacturer materials specialised components valve selection workmanship. |
Testing may include: | air pressure test defect inspection hydrostatic test mains pressure test quality assurance (QA) audit. |
Commissioning schedule may include: | flow test leak check pressure test system purge valve operation. |
Operation and maintenance manual may include: | leak detection pump maintenance valve maintenance water auditing yearly inspection yearly maintenance requirements. |