Required skills

Required skills include

interpreting drawings and specifications

recognising system features and operational modes from drawings manuals and specifications

selecting and testing of pumps

measuring of flow rates

selecting valveflow control devices and piping for given applications

determining system performance parameters and analysing against specifications

using appropriate modelling software

communicating effectively with others

working in teams with others

communicating technical and procedural requirements to others

dealing effectively with unexpected situations

Required knowledge

Required knowledge includes

system operation features

closedopen systems

pump headlift and static head high rise building

system friction losses

net positive suction head

system curves

pumps

types

selection criteria

performance characteristics

bladder tanks

coil characteristics

heat exchangers plate shell and tube tube in tube

flow measurements

flow switchers

boilers types and performance characteristics

cooling towers types and elementary cooling thermodynamics

valves

types and applications

throttle characteristics

flow measurements

selection and applications

pipe sizing and relationship to system performance

standard pipe sizes and specifications

The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria required skills and knowledge range statement and the Assessment Guidelines for the Training Package

Overview of assessment

A person who demonstrates competency in this unit must be able to identify fluid flow and distribution characteristics of hydronic systems and measure system component performance including chillers boilers and flow control devices

Critical aspects for assessment and evidence required to demonstrate competency in this unit

Assessors must be satisfied that the candidate can competently and consistently

implement WHS workplace procedures and practices including risk control measures

determine operational parameters for building HVAC hydronic systems

measure individual component performance of

chillers

boilers

pumps

piping

flow control devices

communicate technical requirements to others including preparation of required drawings CAD files and reports

Context of and specific resources for assessment

This unit may be assessed on the job off the job or a combination of both on and off the job Where assessment occurs off the job then an appropriate simulation must be used where the range of conditions reflects realistic workplace situations

The competencies covered by this unit would be demonstrated by an individual working alone or as part of a team The assessment environment should not disadvantage the candidate

Method of assessment

Assessment must satisfy the endorsed Assessment Guidelines of the MEM Metal and Engineering Training Package

Assessment must satisfy the endorsed Assessment Guidelines of the MEM05 Metal and Engineering Training Package.

Assessment methods must confirm consistency and accuracy of performance over time and in a range of workplace relevant contexts together with application of underpinning knowledge

Assessment methods must be by direct observation of tasks and include questioning on underpinning knowledge to ensure correct interpretation and application

Assessment may be applied under projectrelated conditions real or simulated and require evidence of process

Assessment must confirm a reasonable inference that competency is not only able to be satisfied under the particular circumstance but is able to be transferred to other circumstances

Assessment may be in conjunction with assessment of other units of competency where required

Guidance information for assessment

Assessment processes and techniques must be culturally appropriate and appropriate to the language and literacy capacity of the candidate and the work being performed

WHS requirements

Environmental requirements

Appropriate personnel

Componentry

Resources

Contingencies and unexpected situations