This unit involves the skills and knowledge required to produce heating, ventilation and air conditioning/refrigeration (HVAC/R) control system diagrams.

It includes applying safe working practices, interpreting technical data and specifications, applying knowledge of HVAC/R control systems drawing protocols, using appropriate drawing tools and documenting design.

No licensing, legislative or certification requirements apply to this unit at the time of publication.

ELEMENTS

PERFORMANCE CRITERIA

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1

Prepare to produce HVAC/R control system diagrams

1.1

Work health and safety (WHS)/occupational health and safety (OHS) requirements and workplace procedures for a given work area are identified, obtained and applied

1.2

WHS/OHS risk control measures and workplace procedures are followed in preparation for the work

1.3

Scope of work is determined from project specifications and/or discussions with relevant person/s

1.4

Relevant person/s is consulted to ensure the work is coordinated effectively with others involved on the worksite

1.5

Software tools and equipment required for work are obtained in accordance with workplace procedures

2

Produce HVAC/R control system diagrams

2.1

WHS/OHS risk control measures and workplace procedures for carrying out the work are followed

2.2

Relevant control diagrams and layouts required are determined in accordance with project specifications

2.3

Technical data of control system components is interpreted to determine parameters for inclusion in accordance with project specifications

2.4

Relevant software tools are used to produce diagrams in accordance with project specifications

2.5

Diagrams are checked for accuracy in accordance with project specifications and workplace procedures

2.6

Unplanned events are dealt with in accordance with workplace procedures and safe work practices

3

Complete and report HVAC/R control system diagrams

3.1

Completed control diagrams are submitted to relevant person/s for accuracy in accordance with project specifications and workplace procedures

3.2

Alterations, additions and/or corrective instructions are followed and diagrams are re-submitted for final approval in accordance with project specifications and workplace procedures

3.3

Copies of completed diagrams are filed in accordance with workplace procedures

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.

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.

Assessors must hold credentials specified within the Standards for Registered Training Organisations current at the time of assessment.

Assessment must satisfy the Principles of Assessment and Rules of Evidence and all regulatory requirements included within the Standards for Registered Training Organisations current at the time of assessment.

Assessment must occur in workplace operational situations where it is appropriate to do so; where this is not appropriate, assessment must occur in simulated workplace operational situations that replicate workplace conditions.

Assessment processes and techniques must be appropriate to the language, literacy and numeracy requirements of the work being performed and the needs of the candidate.

Resources for assessment must include access to:

a range of relevant exercises, case studies and/or other simulations

relevant and appropriate materials, tools, equipment and personal protective equipment (PPE) currently used in industry

applicable documentation, including workplace procedures, equipment specifications, regulations, codes of practice and operation manuals.

Foundation skills essential to performance are explicit in the performance criteria of this unit of competency.

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

Electrotechnology

Refrigeration and air-conditioning