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Elements and Performance Criteria

1. Prepare to produce HVAC/R control system diagrams
   • Work health and safety (WHS)/occupational health and safety (OHS) requirements and workplace 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 work is determined from project specifications and/or discussions with relevant person/s
4. Relevant person/s is consulted to ensure the work is coordinated effectively with others involved on the worksite
5. Software tools and equipment required for work are obtained in accordance with workplace procedures
6. Produce HVAC/R control system diagrams
   • WHS/OHS risk control measures and workplace procedures for carrying out the work are followed
7. Relevant control diagrams and layouts required are determined in accordance with project specifications
8. Technical data of control system components is interpreted to determine parameters for inclusion in accordance with project specifications
9. Relevant software tools are used to produce diagrams in accordance with project specifications
10. Diagrams are checked for accuracy in accordance with project specifications and workplace procedures
11. Unplanned events are dealt with in accordance with workplace procedures and safe work practices
12. Complete and report HVAC/R control system diagrams
    • Completed control diagrams are submitted to relevant person/s for accuracy in accordance with project specifications and workplace procedures
13. Alterations, additions and/or corrective instructions are followed and diagrams are re-submitted for final approval in accordance with project specifications and workplace procedures
14. Copies of completed diagrams are filed in accordance with workplace procedures

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.
Producing control system design diagrams must include at least the following:	two different HVAC/R projects

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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:

understanding the extent of the drawing work accurately determining appropriate types of diagrams and their layouts correctly including appropriate technical data parameters in the diagrams checking and correcting diagrams accurately filing copies of completed drawing securely dealing with unplanned events applying relevant work health and safety (WHS)/occupational health and safety (WHS/OHS) requirements, including using risk control measures completing and reporting heating, ventilation and air conditioning/refrigeration (HVAC/R) control system diagrams preparing to produce HVAC/R control system diagrams producing HVAC/R control system diagrams.

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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:

HVAC/R control system fundamentals, safe working practices and relevant standards, codes and regulations, including: control fundamentals: control terminology refrigeration system characteristics HVAC system characteristics control system characteristics control system components control system diagrams and symbols product knowledge types of control equipment: electrical: classification of circuits two position control floating control sensors controllers flow control devices control systems diagrams electronic: operating principles sensors controllers control system diagrams control systems applications: refrigeration air conditioning air handling system controls ventilation heating building airflow system control airflow control singles and multi-zones chiller/boiler and distribution system control (chilled water, boiler and distribution systems) relevant manufacturer specifications relevant safe job safety assessments or risk mitigation processes relevant software tools and equipment relevant WHS/OHS legislated requirements relevant workplace documentation relevant workplace policies and procedures.

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