Elements and Performance Criteria
- Install/replace refrigeration/air handling system controls
- Check and adjust refrigeration/air handling system control sequence and operation
- The temperature, quality, pressure and properties of the air delivered by the air handling system is checked for conformance to specification.
- Controls and system operation are checked against operational specifications using appropriate test equipment and application of principles/techniques.
- Adjustments are performed to sequence system to meet/align to operational requirements and specifications.
- Modifications/alterations are recorded and reported in accordance with standard operating procedures.
- Controls and system operation are checked and commissioned to specifications.
- Fault find refrigeration/air handling system control circuits
- Control system/circuit diagrams and data sheets are interpreted.
- Control system/circuit components are identified and inspected.
- Control system/circuit is traced and action of components is diagnosed to identify and localise faults.
- Control system/circuit parts are tested using appropriate test equipment and application principles.
- Control system/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 system 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 specifications.
- System control components are reassembled using appropriate principles and procedures according to specification.
- Check and adjust sequence of refrigeration/air handling system controls
- Using circuit diagram and refrigeration/air handling system control principles, circuit sensors and controllers are identified.
- Necessary adjustments are made to sequence system control circuit to meet operational specification.
- Correct operation of system control circuit is checked and confirmed against operational specification.
- Refrigeration/air handling system controls are commissioned to specification.
- Appropriate follow-up procedures are adopted.
- Service/maintenance report is completed to standard operating procedures.