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Elements and Performance Criteria

1. Prepare to design mechanical ventilation/exhaust systems and select equipment
   • WHS/OHS processes and procedures for a given work area are identified, obtained and applied
2. WHS/OHS risk control measures and workplace procedures are followed in preparation for the work
3. Scope of the proposed mechanical ventilation/exhaust system is determined from the design brief and/or consultations with relevant person/s
4. Design development work is planned in accordance with workplace procedures for timelines in consultation with others involved
5. Design mechanical ventilation/exhaust systems and select equipment
   • Relevant mechanical ventilation/exhaust processes and methods are applied to the design
6. Alternative concepts for design are evaluated in accordance with the design brief
7. Safety, functionality and budgetary considerations are incorporated in the design specifications
8. System design draft is checked for compliance in accordance with the design brief and relevant industry standards
9. System design is documented for submission to relevant person/s for approval
10. Unplanned events are dealt with in accordance with problem-solving techniques and workplace procedures
11. Obtain approval for mechanical ventilation/exhaust systems design and equipment selection
    • System design is presented to customer and/or relevant person/s in accordance with workplace procedures
12. Requests for alterations to the design are negotiated with relevant person/s in accordance with workplace procedures
13. Final design is documented and approval obtained from relevant person/s in accordance with workplace procedures
14. Quality of work is monitored in accordance with workplace procedures and relevant industry standards

Range Statement

Range is restricted to essential operating conditions and any other variables essential to the work environment. Non-essential conditions may be found in the UEE Electrotechnology Training Package Companion Volume Implementation Guide.
designing mechanical ventilation and exhaust systems must include at least the following:	two different mechanical ventilation and exhaust systems

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Performance Evidence

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements, performance criteria and range of conditions on at least one occasion and include:

developing outlines of alternative designs developing the design within the safety, regulatory, functional requirements and budget limitations documenting and presenting design effectively successfully negotiating design alteration requests obtaining approval for final design dealing with unplanned events applying relevant work health and safety (WHS)/occupational health and safety (OHS) requirements, including using risk control measures designing mechanical ventilation/exhaust systems and select equipment preparing to design mechanical ventilation/exhaust systems and select equipment.

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Knowledge Evidence

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements, performance criteria and range of conditions and include knowledge of:

exhaust systems design, safe working practices and relevant standards, codes and regulations, including: relevant codes and regulations: health and safety noise smoke fire hazard identification system types: applications application flow charts system requirements hazard identification effluent types and removal relationship with smoke spill systems supply air dilution applications natural ventilation applications fan assisted exhaust applications replenishment of exhaust air system components duct design: static, velocity and total pressure pressure drop fouling transitions elbows fan position and mounting noise and noise attenuation requirements for access and maintenance system integrity fan and motor selection: applications suitable fan types motor rating and suitability balancing the fan duct system flame proofing filters and filter selection: types and applications capture velocity outlet design and location: prevailing winds position relative to air intakes weather and bird proofing cycling/operation control: applications code/regulation requirements monitoring of contaminants contaminant detection problem-solving techniques relevant job safety assessments or risk mitigation processes relevant WHS/OHS legislated requirements relevant workplace budget, quality, policies and procedures relevant workplace documentation.

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