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:interpretation of plans and specificationsprinciples and properties of hydronic systems, including:barriers to heat transferconductionconvectionheat transferprinciples of hydronic circuitsprinciples of pressure and energy related to hydronic systemsproperties of water steam and gases used for hydronic systemsradiationhydronic applications, which may include:chiller circuits for air conditioning and refrigeration applicationsconcrete floor heating circuitsheat removal applicationsmanufacturing and industrial applicationsroom heating circuits for residential, commercial and industrial heating applicationstimber floor heating circuitssizing and documenting layout of hydronic heating and cooling systems for residential, commercial or industrial applications for either new projects or an existing structure being renovated, extended, restored or maintained. |
Design requirements may include: | architectural plansbuilding specificationsinterpretation and application of mechanical services drawings and symbolsfire rating of penetrationsowner requirementspipework identificationspecialist hydronic applications. |
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 projectmay include:design stylesenergy costsexpected design lifelabour costsmaterial costssafety factorsspeed of installationsuitable materialssystem choices. |
Statutory and regulatory requirements and relevant Australian standards may include: | Acts, regulations and commonwealth, state or territory, and local government requirementsindustry standardsNational Construction Codeother relevant Australian standards. |
Manufacturer requirements include: | sizing tablesspecificationsrecommended specific fixings for pipeworktechnical and trade manuals. |
Desktop study may include collection and interpretation of data for design purposes in: | architectural and building plansdeveloper plansmanufacturer datadocuments, which may include:applicationsbrochuresformspoliciesother reports as available. |
Performance requirements must include: | hydronic heating and cooling system requirements, including temperature and safety requirements, established using relevant Australian standards, codes and manufacturer information. |
Layout of pipework systems: | must include:flow, velocity, pressure and discharge requirements established using relevant Australian standards, codes and local government authority requirementslocation of pipework (fire rating of enclosure)compliance with hydronic principlesshould not unduly affect building integrity and aesthetic appealshould have principles of economy, serviceability, durability and fit for use applied. |
Fittings and valves may include: | fittings:bendselbowsteesunionscouplingsstrainersvalves:excess pressureflow and isolatingpressure limitingpressure reduction. |
Pipe size requirement calculations must include: | energyflow and velocitypressuresizingtemperaturevolume and storage. |
System components and circuits: | boilers may include:advantages and disadvantages of boiler typescapacity and sizecoalelectricenergy sourcesfire tubegasheat exchangermethods of reducing heat lossesoilpackagedpressure controls and componentssolid fuelvalveswater tubefactors to be considered when selecting a boiler hydronic circuit must include:circulating pump appliancesflow and return pipeworkpipework gradesvalves and fittingscooling towers must include:bacteriological safetycollectionconstructiondisinfectionfansmaintenancesizesprayschillers and refrigerant plant must include:engineered systemspackaged plantsproprietary commercial and industrial equipment and assemblieshydronic appliances must include:calorifierscomponentsconcrete constructionelectronic controlsheat exchangersmethods of temperature and pressure controlradiatorstimber floor heating systemstypeswater heaters. |
Pump and compressor systems must include: | chilled water pumpscirculating pumpsrefrigeration compressorsother applications as required. |
Insulation may include: | feltfibreglassinsulation protection, including:plasticsheet metalrock wool. |
Pipe supports may include: | anchorsbracket spacingcorrosion protectionhanging bracketsmanufacturer-recommended specific fixingsmaterial requirementsprovision for expansionsaddles. |
Materials may include: | copper (Cu)steelother approved materials. |
Jointing methods may include: | brazingmechanical jointsthreadingother approved jointing methods. |
Installation requirements may include: | pipe protection, which may include:covercorrosionimpactfire ratinglevel of workmanshipmanufacturer-recommended specific fixingspipe supportprovision for expansionserviceability and access. |
Sustainability principles and concepts: | cover the current and future social, economic and environmental use of resourcesmay include:efficient use of materialefficient energy use/capital outlay comparisonwater efficiencyreuse of water, such as rainwater, greywater and recycled non-drinking waterconsideration of the Green Building Council of Australia rating schemeselecting appropriate components to ensure minimal environmental impact. |
Plans: | may include:axonometricscross-sectionsdetailselevationsisometricssectionsschematics, which may be produced using:computer generationdrawing equipment. |
Specification may include: | beddingsupportflow requirementsjointing manufacturer requirementsmaterialsresidual pressuressafety (WHS)specialised componentstestingvalve selectionwater treatmentworkmanship. |
Testing may include: | defect inspectionflow testinginspection checklistleak testingpressure testingquality assurance (QA) audit. |
Commissioning schedule must include: | system certificationflue balancingflow testleak checkpressure testsystem purgesystem defectssystem functions as per designvalve operationchecking fit for purposeremoving contaminants. |
Operation and maintenance manual may include: | as installed drawingscertification documentationcheck for blockagesleak detectionmaintenance schedulesmanufacturer brochures and technical informationregular inspectionregular maintenance requirements.results of commissioning testvalve function. |