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 must include: | barriers to heat transfereffects of air in a steam systemheat transferinterpreting plans and specifications, and sizing and documenting layout of steam generation and distribution systems for residential, commercial and industrial applications for either new projects or an existing structure being renovated, extended, restored or maintainedprinciples and properties of steam systems, including:characteristics of condensationmethods of condensate removalsteam applications, including commercial, manufacturing, institution and machinery and equipment operationworking with types of steam and steam quality, including:dry steamflash steamproperties of steam at varying pressuressuperheated steamwet steam. |
Design requirements may include: | architectural plansbuilder specificationsboiler selectionfire safety requirementsflow requirements and sizing of pipework owner requirementspipework identificationventilation requirements. |
Cost-benefit analysis: | compares the range of suitable materials and system choices available to enable cost-effective choices to be made without compromising integrity of the projectmay include:design stylesenergy costsexpected design lifelabour costsmaterial costssafety factorsspeed of installationsuitable materials. |
Statutory and regulatory requirements and relevant Australian standards and codes may include: | Acts, regulations and commonwealth, state or territory, and local government requirementsNational Construction Coderelevant Australian standards and codes. |
Manufacturer requirements may include: | material specificationsrecommended specific fixings for pipeworksizing tablestechnical and trade manuals. |
Desktop study must include: | architectural and building plansdeveloper plansdocuments, including:applicationsbrochuresformsother reports as availablemanufacturer datapolicies. |
Performance requirements may include: | steam generation and consumption, and steam and pressure quality, established using relevant Australian standards, codes and manufacturer information. |
Layout of pipework systems: | must include:principles of economy, serviceability, durability and fit for uselocation of pipework (fire rating of enclosure)should not unduly affect building integrity and aesthetic appeal. |
Fittings and valves may include: | fittings:bendscouplingscondensate trapssteam trapssteam headerssteam strainerstees unionsvalves:isolating valvespressure relief valves. |
Pipe size calculations must include: | energypressuresizingstoragevolume. |
Steam appliances: | may include:calorifiersindustrial applicationskitchen and laundry appliancessteriliserswater heatersdetails must include:componentsconstructionelectronic controlsmethods of temperature and pressure control. |
Boilers: | may include:coalelectricfire tubegasoilpackagedsolid fuelwater tubefactors to be considered when selecting a boiler must include:advantages and disadvantages of boiler typescapacity and sizedesigns based on anticipated useenergy sourcesmethods of reducing heat lossespressure controls and componentsstorage requirement calculationssuitable time period between refillingvalves. |
Steam circuits must include: | condensate returnfeed pumpsfeed tanksheaderssteam distributionwater treatment. |
Steam trap types and their operation: | types, which may include:mechanicalthermodynamicthermostaticother applicable typesoperation, which must include:installationlocation. |
Steam injection must include: | noise controlopen ended pipeproprietarysparge pipe. |
Insulation: | may include:fibreglassrock woolinsulation protection, including:plasticsheet metal. |
Pipe supports may include: | anchorsbracket spacingcorrosion protectionhanging bracketsmanufacturer-recommended specific fixingsmaterial requirementsprovision for expansion. |
Materials may include: | coppersteelother approved materials. |
Jointing methods may include: | brazingmechanical jointsthreadingwelding. |
Installation requirements may include: | pipe protection:covercorrosionimpactfire ratinglevel of workmanshipmanufacturer-recommended specific fixingspipe supportprovision for expansionprovision for drainage of condensationserviceability and access. |
Designed may include: | cost relating to performance, including:milestonesstandard proceduresstandards of workwork schedulesprescriptive designs, including detail relating to:materials and quality of worknominated subcontractorsprovision of on-site facilities and site accessquality assurance. |
Sustainability principles and concepts: | cover the current and future social, economic and environmental use of resourcesmay include:selecting appropriate material to ensure minimal environmental impactefficient energy usagewater usageefficient use and recycling of materialdisposing of waste material to ensure minimal environmental impact. |
Plans: | may include:axonometricscross-sectionsdetailselevationsisometricsschematicssectionsmay be produced using:computer generationdrawing equipment. |
Specification may include: | boiler selectionfire safetyflow requirementsjointingmanufacturer requirementsmaterialsresidual pressuresspecialised componentssupporttestingvalve selectionworkmanshipwork health and safety (WHS). |
Testing may include: | defect inspectionflow inspection checklistleak pressure performancequality assurance (QA) audit. |
Commissioning schedule may include: | boilercheck for foreign materialcontainmentleak checkoperationpumpsystem certificationsystem defectssystem functions as per designtreatment system. |
Operation and maintenance manual may include: | as installed drawingscertification documentationmaintenance schedulesmanufacturer brochures and technical informationsystem operational proceduresregular water quality testingresults of commissioning test. |