Unit of competency Outline

Date retreived
22/07/2026 12:14 PM AWST

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Maintain and repair commercial and/or industrial refrigeration and/or air conditioning controls

Maintain and repair commercial and/or industrial refrigeration and/or air conditioning controls

Unit of competency
National Code
MEM18092
State Code
OAU37
TGA Status
Current
DTWD Status
Approved
Current Release Number
1.00
Current Release Date
26/06/2019
View on TGA
State Implementation and Classification
Approved Date
Field of Education
031315 - Refrigeration And Air Conditioning Mechanics
Original Release Date
Nominal Hours
54
Description
This unit of competency defines the skills and knowledge required to repair or replace commercial and/or industrial refrigeration and/or commercial air conditioning controls.This unit applies to the installation, adjustment, repairs, replacements and overhauls undertaken to site or manufacturers' specifications, using application of principles of domestic refrigeration and/or commercial air conditioning control sequencing.A Refrigerant Handling Licence must be held by any person who carries out work in relation to refrigeration and air conditioning equipment. Band: BUnit Weight: 6
Notes
Elements and Performance Criteria
1 Determine job requirements
  • 1.1 Follow standard operating procedures (SOPs)
  • 1.2 Comply with work health and safety (WHS) requirements at all times
  • 1.3 Use appropriate personal protective equipment (PPE) in accordance with SOPs
  • 1.4 Identify job requirements from specifications, drawings, job sheets or work instructions
2 Install/replace refrigeration/air conditioning controls
  • 2.1 Identify control circuit components and inspect for compliance to specification
  • 2.2 Undertake sequential installation according to manufacturers' specifications and procedures
3 Check and adjust refrigeration/air conditioning control sequence and operation
  • 3.1 Check the temperature, quality, pressure and properties of the air delivered by the air conditioning system for conformance to specification
  • 3.2 Check controls operation against operational specifications using appropriate test equipment and application principles/techniques
  • 3.3 Perform adjustments to control sequence to meet/align to operational requirements and specifications
  • 3.4 Record modifications/alterations and report according to SOPs
  • 3.5 Check controls operation and return to service to specification
4 Fault find refrigeration/air conditioning control circuits
  • 4.1 Identify and inspect control circuit components
  • 4.2 Trace control circuit and diagnose action of components to identify and localise faults
  • 4.3 Test control circuit parts using appropriate test equipment and application principles
  • 4.4 Assess control circuit parts against operational specification
  • 4.5 Localise fault condition at the component level, evaluate faulty condition, analyse root cause and plan corrective action
5 Maintain, repair/replace control components
  • 5.1 Apply correct maintenance procedures according to procedures
  • 5.2 Use appropriate tools, equipment and techniques to test faulty items and repair or replace using sequential installation procedures according to manufacturers' specifications
  • 5.3 Select replacement items from manufacturers' catalogues
  • 5.4 Reassemble control components according to specification
6 Check and adjust sequence of refrigeration/air conditioning controls
  • 6.1 Identify sensors and controllers
  • 6.2 Make necessary adjustments to sequence control circuit and check correct operation to meet operational specification
  • 6.3 Return refrigeration/air conditioning controls to service to specification
  • 6.4 Adopt appropriate follow-up procedures
  • 6.5 Complete service/maintenance report in accordance with SOPs
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