Elements and Performance Criteria
- Install/replace refrigeration/air conditioning controls
- Check and adjust refrigeration/air conditioning control sequence and operation
- The temperature, quality, pressure and properties of the air delivered by the air conditioning system are checked for conformance to specification.
- Controls operation is checked against operational specifications using appropriate test equipment and application principles/techniques.
- Adjustments are performed to control sequence to meet/align to operational requirements and specifications.
- Modifications/alterations are recorded and reported in accordance with standard operating procedures.
- Controls operation is checked and returned to service to specification.
- Fault find refrigeration/air conditioning control circuits
- Control circuit diagrams and data sheets are interpreted.
- Control circuit components are identified and inspected.
- Control circuit is traced and action of components is diagnosed to identify and localise faults.
- Control circuit parts are tested using appropriate test equipment and application principles.
- Control circuit parts are assessed against operational specification.
- Fault condition is localised at the component level.
- Faulty condition is evaluated, root cause is analysed and corrective action is planned.
- Maintain, repair/replace control components
- Correct maintenance procedures are applied according to standard operating procedures.
- Repair procedures are selected and applied using correct and appropriate techniques, tools and equipment.
- Faulty items are tested, repaired or replaced using sequential installation procedures according to manufacturers' specifications.
- Replacement items are selected from manufacturers' catalogues to meet specification.
- Control components are reassembled using appropriate principles and procedures according to specification.
- Check and adjust sequence of refrigeration/air conditioning controls
- Sensors and controllers are identified using circuit diagram and refrigeration/air conditioning system control principles.
- Necessary adjustments to sequence control circuit are made to meet operational specification.
- Correct operation of control circuit is checked and confirmed against operational specification.
- Refrigeration/air conditioning controls are returned to service to specification.
- Appropriate follow-up procedures are adopted.
- Service/maintenance report is completed to standard operating procedures.