Maintenance and repair of refrigeration and air conditioning hard facilities systems
Overview
This standard is about planning and completing a range of planned and reactive maintenance and modification/repair across industrial and commercial Refrigeration and Air Conditioning (RAC) Hard Facilities systems to ensure they continue to operate to their design specification. This includes air conditioning systems including unitary/package; split/multi-split and complex, heat pumps and air handling units.
The standard requires a high level of individual autonomy, highly developed diagnostic skills and detailed knowledge of system operating principles
The standard is relevant to engineers and technicians who undertake maintenance, repair and modifications to Building Services Engineering Hard Facilities systems.
Performance criteria
You must be able to:
- Verify that the job information and documentation are current, relevant and complete
- Verify that the plant, instruments, access equipment and tools are fit for purpose for the work activity *and *mechanical systems/services
- Produce a risk assessment and method statement for the work activity, including the identification and use of personal protective equipment
Confirm with relevant others before commencing the work activity, that the work location and area can be accessed safely and has been checked for risk to site personnel and that required risk mitigation measures are in place
Select materials, equipment, accessories and components required to complete the *work activity *and confirm that they are of the required type and size, fit for purpose in accordance with the system's design and suitable for the job and working environment
- Interpret diagrams and drawings to identify the location of the system, equipment, accessories and components
- Complete safe to touch, safe identification and safe-isolation to confirm the safe disconnection, installation and/or connection of electrical equipment including lock off, cables/wiring, associated with the system
- Undertake the work activity on the system, equipment, accessories and components in accordance with the system's design, the working environment, manufacturers' instructions, organisational requirements and the limits of your technical responsibility
- Identify where the work activity requires additional discipline-specific expertise in accordance with your level of authority, competence and organisational procedures
- Replace and/or repair the system, equipment, accessories and components
- Perform the required testing to confirm the integrity of the system, equipment, accessories and components on completion of the work activity.
- Adjust the control features for optimum performance
- Confirm with *relevant others *that all works and variations minimise the potential for hazard and risk
- Obtain customer/client acceptance of the completed work activity *on the system, *equipment, accessories and components *in accordance with *organisational procedures
- Implement organisational procedures for the safe transport and/or disposal of waste material, substances and liquids in accordance with suppliers' and manufacturers' instructions and relevant legislation
- Complete relevant documentation in accordance with organisational procedures
Knowledge and Understanding
You need to know and understand:
- The limitations of your responsibility and competence when undertaking work on mechanical Hard Facilities systems/services
- The operations, applications, advantages and limitations of different systems and their associated equipment, accessories and components
- How to verify that job information and documentation is current, relevant and complete and that the plant, instruments, access equipment and tools are fit for purpose
- How to produce a risk assessment and method statement for the *work activity *including the identification and use of personal protective equipment, in accordance with the system's design, the conditions of the working environment, *organisational procedures *and the activities of other personnel on site
- How to interpret diagrams and drawings to identify the location of the system and its associated equipment, accessories and components *relevant to the *work activity
How to select materials, equipment, accessories and components *required to complete the *work activity and confirm that they are of the correct type and size, fit for purpose in accordance with the system's design, suitable for the working environment
The organisational procedures for safe to touch, safe identification and safe-isolation of electrical supplies
- The methods and techniques associated with the work activity and relevant to the system's design, the working environment, the manufacturers' instructions and the limits of your technical responsibility
- How to identify where the work activity requires additional discipline-specific expertise in accordance with your job description and formal contract
- How to implement *organisational procedures *for the safe transport and/or disposal of any waste material, substances and liquids in accordance with suppliers' and manufacturers' instructions and relevant legislation
- The methods, techniques and procedures used to undertake the required testing to confirm the integrity of the system and its associated equipment, accessories and components on completion of the work activity
- The organisational procedures for confirming with *relevant others *that all works and variations minimise the potential for hazard and risk
- The* organisational procedures* for obtaining customer/client acceptance of the serviced and/or maintained system and its associated equipment, accessories and components the organisational procedures for completing all relevant documentation
- How to communicate with relevant others
- How to complete relevant documentation in accordance with organisational procedures
Scope/range
Type of work
- service
- maintenance
- fault diagnosis and rectification
- commissioning
- system modification
* *RAC Systems/Services
Refrigeration
- vapour compression
- secondary
- multi-temp
- air conditioning and heat pumps
- compound/pumped
Air Conditioning
- unitary or package
- split or multi-split
- complex
Equipment, components and accessories
- accumulators
- air handling units
- circuit breakers
- compressors
- condensate pumps
- condensers/evaporators
control devices
- electrical
- electronic
- electro-mechanical
earthing protection
- evaporators
- expansion devices
- filters
- fused-spurs
- fuses
- grilles/diffusers/fans/filters
- heat exchangers
- heat pumps
- internal and external units
- isolators
- liquid drier/receivers
- pipework
- pressure vessels
- sensors and gauges
- smart controls
- switches
- vacuum/condensate pumps
- valves (line; regulating)
Organisational Procedures
- information management
- project management
- risk assessment management
- health and safety management
- management of natural and built environment
- customer service
- accident reporting
- emergencies
- communication with relevant others
Relevant others
- customers/clients
- client representatives
- supervisors
- site/contract manager
- other contractors/trades
- members of the public
- work colleagues
- others