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Scheme Standards Level 2 Units
General Range: the systems associated activities in which the candidate has to demonstrate safety to meet the requirements of this unit are:
Activities on non-complex systems and components to meet the requirements of systems in dwellings, or in buildings (or parts of buildings) with a similar systems requirement to a dwelling, as covered by the technical units at Level 2
Undertaking Plumbing Work Activities
Element 21.1 Use Safe Procedures When Working With Others Knowledge Outcomes
1. the general responsibilities of the employer and employee for ensuring safety in the work place
1.1 the general requirements of health and safety legislation for the employer’s responsibilities for safety in the workplace
1.2 the employee’s responsibilities for his/her own and other’s safety at work 1.3 the employer’s responsibilities for the provision of personal protective equipment
2. the requirements of current safety legislation for the range of work operations
2.1 the general requirements of construction safety legislation for safety in work locations where plumbing operations may be carried out
2.2 the general requirements of safety legislation for the safe handling and lifting of materials and components
2.3 the general requirements of current legislation regarding safe working with electrically operated tools and equipment, including temporary electrical supplies in work locations
2.4 the general requirements of current legislation regarding safe working with hazardous materials
2.5 the general requirements of current legislation regarding safe working with lead 2.6 the general requirements of current legislation regarding working in excavations
3. the potential hazards or risks associated with the range of work locations in which work on systems is undertaken, the measures to be taken to reduce risk
4. general measures to be taken to create safety awareness - company on site policies - applying and supervising site safety practices including measures to report potential safety hazards
4.1 the purpose and content of company safety policies 4.2 the range of safety signs and notices used in construction locations
4.3 the importance or reporting to an appropriate person any defects in safety equipment, or potential hazards in the workplace
5. accident reporting procedures
5.1 the statutory requirements for reporting accidents in the workplace 5.2 methods of reporting and recording accidents
5.3 the importance of safe keeping of accident records
6. basic first aid procedures
6.1 the basic first aid procedures for minor injuries in the workplace
6.2 the immediate actions to take in the event of serious injury to persons in the workplace, resulting from cuts, contact with heat source, contact with electrical supply, falls, foreign substances in the eye
Undertaking Plumbing Work Activities
Knowledge Outcomes
1. how to work from general risk assessments and how to apply them in the workplace
1.1 the purpose of a risk assessment - levels of risk - the importance of complying with the requirements of a risk assessment
1.2 the general risks associated with work locations, tools and equipment, hazardous materials hazardous processes
2. safe practices when carrying out work on the range of systems and components
2.1 the sources of information of safety in installation and maintenance work for the range of systems and components
3. the range of tools and equipment for installation or maintenance work - their safe use maintenance requirements - safety equipment
3.2 the care and maintenance requirements for access equipment used in plumbing operations
4. the range of tools and equipment whose use is controlled by legislation
4.1 the tools and equipment whose use is controlled by legislation, including cartridge operated fixing tools.
4.2 the tools and equipment whose maintenance is controlled by legislation, including abrasive wheels
5. the range of potentially hazardous materials used for system installation or maintenance work
5.1 the potential hazards arising from the incorrect assembly and use of LPG or other gas fired heating equipment
5.2 the potential hazards arising from the use of cleaning agents 5.3 the potential hazards arising from the use of lead
5.4 the potential hazards which could arise from the presence of asbestos 5.5 the main requirements of COSHH Regulations
6. the methods of identifying potentially hazardous materials and level of risk including asbestos
6.1 how to identify the hazardous substances that may commonly be encountered in the workplace, the level of risk that each presents, including cleaning agents, lead, asbestos
6.2 the physical properties/characteristics of commonly occurring hazardous materials
7.1 the range of safety checks for the presence of hazardous materials, and precautions that should be undertaken in a typical work location
7.2 the importance of selecting the types of PPE, checking for safe condition at each occasion of use, and wearing at all times when there is a risk
8. the legislation or recommendations governing the safe use or disposal of hazardous materials
8.1 the hazardous materials used in plumbing systems, including materials that could provide a threat to the environment
8.2 the recommendations of safety directives for the safe disposal of hazardous materials
9. the methods of protecting customers’ property within the range of locations in which system installation or maintenance work is carried out
9.1 the range of customers’ property for which it may be necessary to provide protection, including external building fabric, internal building fabric, furnishings and fitting, ornaments and accessories, motor vehicles
9.2 methods of protecting customer’s property during work operations on plumbing systems, including covering, removal to safe storage.
10. how to liaise with the customer, pre -work inspection, reporting existing damage or identifying damage arising from work operations
10.1 the importance of liaising with the customer at the appropriate times, on measures to be taken to protect property
10.2 the importance of carrying out an inspection of any customer’s property in the work location and recording and reporting any existing damage, before plumbing operations commence
10.3 the importance of promptly recording and reporting any damage that occurs during work operations
11. the procedures for summoning the different emergency services. The information required by the emergency services to permit them to respond promptly
11.1 the responsibilities of the three emergency services - typical situations when each may be required
11.2 procedures for summoning the emergency services and the types of information that each will require to permit them to respond promptly
11.3 any actions that could be taken while awaiting the arrival of the emergency services to assist their actions on arrival
12. the range of fire extinguishers used for different types of fire and how to extinguish small fires in a safe manner
12.1 the different classes of fire and their fuel sources
12.2 the types of fire extinguisher and their uses for the different classes of fire
12.3 circumstance when it would be appropriate to fight a fire, and circumstances when it would not
13 . typical evacuation procedures for work locations in which system installation or maintenance work may be carried out
13.1 the reasons why it may become necessary to evacuate a building in which work is being carried out including fire, and toxic atmosphere
13.2 typical evacuation procedures and the precautions to be observed during evacuation
13.3 the purpose of an assembly point for building evacuation, and the importance of complying with any instructions relating to assembly upon the evacuation of a building
General Range: the systems associated activities in which the candidate has to demonstrate knowledge of key plumbing principles to meet the requirements of this unit are:
Activities on non-complex systems and components to meet the requirements of systems in dwellings, or in buildings (or parts of buildings) with a similar systems requirement to a dwelling, as covered by the technical units at Level 2
Key principles are the basic plumbing science and mathematics underpinning the installation, decommissioning and maintenance of plumbing systems.
The Units/Elements/ Knowledge items to which the Key Principles are related are identified as follows,
For example:
The knowledge item on the principles of combustion (item 2 below) is referenced as follows Unit 21.2/12 PC 21.2.5 Range 4
This identifies the knowledge item as a requirement of
1.1 The properties of gases used for heating purposes in plumbing activities - LPG propane - butane
1.2 The properties of gases used as fuels in hot water and heating systems - Natural gas and LPG
2. Principles of combustion
3. Properties of water - relative density - max. density and changes of state - latent heat of fusion of ice - latent heat of vaporization
Unit 7.2/3 PC 7.1
3.1 boiling point - freezing point 3.2 behaviour at various temperatures
4. Properties of water - relative density - max. density and changes of state - latent heat of fusion of ice - latent heat of vaporization
Unit 7.2/3 PC 7.1
4.1 the relative density of water
4.2 the maximum density of water and what happens when water changes state
4.3 the concept of latent heat - heat lost/gained when water changes state - latent heat of fusion of ice - latent heat of vaporization of water
5. Force and pressure in water - intensity of pressure - pressure head - units of measurement
Unit 7.2/3 PC 7.1
5.1 The concept of ‘head of water’ - static head - intensity of pressure
5.2 The concept of gravitational acceleration - units of measurement of pressure- Pascal bar - Newton
5.3 Procedures for calculation pressure and intensity of pressure using standard units of measurement
6. Flow of water in pipes and channels - frictional resistance - principles of self cleansing velocity
8. Measurement of temperature
10.1 The concept of heat transfer by conduction - good and bad conductors - positive and negative aspects of conduction in plumbing systems - properties of insulators and their application in plumbing systems
10.2 The concept of heat transfer by convection - application of the principles of convection to plumbing system design and operation
10.3 The concept of heat transfer by radiation - effectiveness of different surfaces and finishes as good or bad radiators
11. Hardness in water - PH values - Temporary and permanent hardness
11.1 The concept of the ‘water cycle’ - properties of water from different sources - acidity and alkalinity in water
11.2 The concept of the PH value of water
11.3 Causes of temporary and permanent hardness in water
12. Effects of hardness in water on plumbing systems - water treatment - water softeners
13. Electrolytic action and corrosion in systems - methods of preventing corrosion
13.1 The causes of corrosion in systems - the ‘electromotive series’ - good and bad combinations of metals
13.2 Corrosion ‘troublespots’ in plumbing systems
13.3 Methods of preventing corrosion in plumbing systems - selection of combinations of metals - use of sacrificial anodes - use of coatings to prevent corrosion e.g. galvanising
14. Capillarity in liquids - adhesion and cohesion - surface tension - positive and negative effects of capillarity in plumbing systems
14.1 The concept of capillarity in liquids - the role of adhesion and cohesion and surface tension in capillarity
14.2 Positive and negative effects of capillarity in plumbing systems and components
15. Properties of plumbing materials - mass/weight - relative density - specific heat capacity
15.1 Properties of plumbing materials - mass/weight - relative density 15.2 Properties of plumbing materials - malleability - ductility - hardness - tensile strength 15.3 Properties of plumbing materials - specific heat capacity
16. Properties of plumbing materials - coefficient of linear expansion - heat conductivity - specific heat capacity Unit 7.2/2 PC 7.2.2, 7.2.3, 7.2.4, 7.2.5 Range 2, 3, 4, 5, 6 16.1 Properties of plumbing materials - coefficient of linear expansion 16.2 Properties of plumbing materials - heat conductivity 16.3 Properties of plumbing materials - specific heat capacity
17. Principles of electrical supply - AC /DC current - units of measurement of voltage, current, resistance, single and three phase supply - domestic supplies - earth continuity bonding - circuit protection devices
17.1 the principles of electricity - generation - flow of electricity - electromotive force electrical resistance - AC and DC current - conductors and insulators
17.2 the principles of single and three phase supply - series and parallel circuits
17.3 the principles of design of layouts of electrical supplies to domestic premises - mains supplies and connections - consumer units and use of fuses - cables and components including jointing components - power and lighting circuits - earthing procedures and requirements.
17.4 the principles of operation of circuit protection devices - fuses - miniature circuit breakers - residual current devices
17.5 the supply, connection, and protection requirements of electrically powered plumbing components
17.6 the principles and procedures for applying temporary earth continuity bonding
General Range of systems
Non-complex systems and components to meet the requirements of systems in dwellings, or in buildings (or parts of buildings) with a similar systems requirement to a dwelling
This unit covers a range of common plumbing installation, decommissioning & maintenance processes that apply to the range of plumbing systems covered in the Level 2 units.
Components
Components
Knowledge Outcomes
1. the sources of information on the preparatory work necessary for the system or component installation
1.1 sources of information on the layout of buildings, including their construction details and materials, and provisions for systems installation
1.2 the sources of information on the requirements of health and safety legislation governing safety in work locations
1.3 that information for smaller installations, or additions or amendments to systems, may be in the form of verbal instructions from the customer, and the importance of confirming such instructions.
1.4 methods of accommodating systems pipework within walls, floors, roof spaces 1.5 the preparatory work to be carried out by other trades (when in attendance)
2. regulations, recommendations governing safety in the workplace. General responsibilities of the operative for his/her own safety and that of others
2.1 the general requirements of health and safety legislation for the safety of work locations
2.2 general responsibilities of operatives for their own safety and the safety of others
2.3 requirements of health and safety legislation for the safe movement of the workforce, materials, site visitors, and members of the public
3. the equipment necessary to provide safe access to work at heights, or in confined spaces
3.1 the equipment necessary to provide safe access to work at heights, including ladders, trestles, fixed and mobile scaffolds, checks for safe condition, erection, dismantling, and safe and secure storage, appropriate warning notices, and barriers
3.2 checking the safety of temporary walkways for access to work locations, and the movement of materials and system components
3.3 ensuring the provision of adequate lighting levels within work locations
4. how to protect customer’s property or the building fabric prior to the work commencing
4.1 the importance of checking work locations to identify any existing damage to customer’s property, including building fabric, furnishings and fittings, ornaments and accessories.
4.2 the importance of recording and reporting any existing damage to the customer’s property, before commencing any work
4.3 the importance of taking appropriate measures to protect customer’s property including the use of protective sheeting and the removal and safe storage of items that might be damaged during installation work
4.4 the importance of liaising with the customer on temporary storage arrangements for property that could be damaged by work activities
4.5 the importance of liaising with other trades on measures to protect work in progress, or materials ready to be fitted
7. how to ensure that the customer is fully briefed on all aspects of the installation programme
7.1 the persons whose activities may be affected by the system installation work
7.2 the types of information that it is appropriate to pass to the customer, or other persons, including work schedules and operating instructions for systems and components
7.3 the importance of ensuring that information is passed to the customer, or other person at the appropriate time
8. the tools, equipment, materials and components required for the system installation - order and supply advice, delivery and checking procedures
8.1 procedures for ordering materials and components 8.2 the purpose of supply and delivery documents
8.3 the importance of checking deliveries of materials and components for compliance with the supply order, and noting and reporting any deficiencies or damage
8.4 the importance of ensuring that material orders and supply dates will meet the job schedule
9. the actions to be taken should materials not be available at site to commence the installation activity
9.1 the importance of checking that tools, equipment, materials and components will be on site before job commencement
9.2 the importance of reporting promptly to the appropriate persons any anticipated delays in deliveries of tools, equipment, materials, and components
9.3 the importance of liaising with other trades whose work may be affected by delays in tools, equipment, material or component delivery
10. secure storage procedures for tools, equipment, materials and components-basic stores procedures to ensure security and to minimise loss or wastage.
10.1 the types of secure storage provision that may be required for tools, equipment, materials, and components for systems installations
10.2 the importance of arranging storage provision before deliveries
11. the actions to take in the event of a suspected gas danger
Element 7.2 Carry out the Installation of Systems and Components Knowledge Outcomes
1. how to measure and record installation and site details for prefabrication purposes
1.1 methods of measuring locations into systems pipework and components are to be installed and recording dimensions, angles, and sizes of pipework for prefabrication purposes
2. the industry practices and work standards for fabricating and installing system components
2.1 methods of cutting, bending, jointing, and installing materials used for Systems installations
3. the positioning and fixing requirements for system components to conform to the system design and intended functions
3.1 how to fix system components to conform to industry standards and system design requirements
3.2 the methods of making fixings to the range of structural materials
5. methods of working which protect the building décor, customer property and existing systems or components
5.1 the importance of liaising with the customer on measures to protect property during work operations
5.2 the importance of taking appropriate measures to protect customer’s property including the use of protective sheeting and the removal and safe storage of items that might be damaged during installation work
5.3 the importance of checking and reporting any existing damage to customer’s property before commencing work activities
5.4 the importance of keeping work locations clean and tidy
6. job management structures and methods of reporting and recording job progress or problems delaying progress
6.1 typical job management structures in plumbing companies 6.2 reporting procedures within plumbing companies
6.3 reporting procedures when plumbing company is sub-contracted to a main contractor
7. the care and maintenance requirements of tools and equipment and checks for safe condition.
7.1 the maintenance requirements for hand and power tools used for the installation of systems and components
7.2 the checks for safe condition for hand power tools used for the installation of systems and components
7.3 the maintenance requirements for access equipment, including steps, ladders, trestles 7.4 the checks for safe condition of access equipment, including steps, ladders, trestles
how to safely collect and dispose of system contents that may be hazardous to health or the environment. (PC 12.1.3, 12.1.4)
(Range 2, 3, 4) 6.1 the types of system content that could prove hazardous to health or the environment
6.2 how to ensure that systems contents are disposed of safely to appropriate drainage provisions when decommissioning systems
Components
Knowledge Outcomes
1. the range of information that should be available on the routine and non-routine service and maintenance requirements of systems and components
1.1 the range of information that should be available on systems component maintenance including specifications and schedules, manufacturers’ information, services and maintenance schedules
1.2 the details that may be obtained from the different information sources
3. how to plan maintenance procedures to minimise interference with system operation and customer routines
3.1 the other persons, including the customer and co-contractors whose work or routines may be affected by maintenance activities on systems component
4. how and when to liaise with others during maintenance activities
4.1 how to identify other users of the system, or the building, with whom it would be appropriate to liaise, including customers and other trades
4.2 the points within the maintenance activities at which t would be appropriate to liaise with others
. how to complete records and reports of the maintenance of systems and components (PC 16.2.3)
(Range 3, 2) 3.1 the information that should be included on a maintenance record
Knowledge Outcomes
2. the work procedures for the rectification of faults in systems or components which will ensure minimum disruption to customers and routines
2.1 the persons, including customers, co-workers, other system users, with whom it may be necessary to liaise when carrying out routine maintenance of systems & components
2.2 the points within the maintenance process when liaison with others will be necessary
2.3 the importance of advising appropriate persons of the completion of maintenance activities, and the intention to re-activate systems 3. process (PC 16.3.2)
system users how to liaise with others to ensure co-operation in the fault rectification (Range 5) 3.1 methods of communication appropriate to liaising with customers, co-contractors, other 3.2 the actions to take if others are not co-operative
General Range:
Non-complex systems and components to meet the requirements of systems in dwellings, or in buildings (or parts of buildings) with a similar systems requirement to a dwelling
The range covered is direct and indirect systems.
Components
Knowledge Outcomes
1. the sources of information on the preparatory work necessary for the system or component installation
1.1 the sources of legislation governing the layout and positioning of components for Direct and Indirect Cold Water Systems, including pipe materials, fittings, controls, storage cisterns, and incoming services
1.2 sources of information on the fixing and installation requirements for Cold Water Systems components
5. the input services or supplies required for new systems or components, or for extending systems or adding components to existing systems - how to confirm that input services are adequate
5.1 methods of identifying the water supply requirements of Direct or Indirect Cold Water Systems or components
5.2 methods of confirming that incoming water services or existing supply meet the requirements of the system or components
6. the persons to whom deficiencies in input services should be reported and procedures for isolating input services
6.1 the persons to whom deficiencies in input water services should be reported, including the customer, co-contractors, or other building users
6.2 the importance of ensuring that appropriate actions are taken to remedy deficiencies in services or supply before the connection of the system or component
8. the tools, equipment, materials and components required for the system installation - order and supply advice, delivery and checking procedures.
8.1 the range of tools and equipment required for the installation of Cold Water Systems and components
8.2 the range of materials and components required for the installation of Cold Water Systems, including pipe materials, pipe fittings, controls, fixings, storage cisterns
Element 7.2 Carry out the Installation of Systems and Components Knowledge Outcomes
1. how to measure and record installation and site details for prefabrication purposes
1.1 how to interpret drawings of Cold Water Systems installations to establish positions of pipework, fittings, fixings, controls, storage cisterns
1.2 methods of measuring locations into which Cold Water Systems pipework and components are to be installed and recording dimensions, angles, and sizes of pipework for prefabrication purposes
2. the industry practices and work standards for fabricating and installing system components
2.1 methods of cutting, bending, jointing, and installing all materials used for Cold Water Systems installations
2.2 approved methods of cutting storage cistern materials
2.3 the industry standards of workmanship for Cold Water Systems installations
2.4 the safety practices appropriate to fabrication and installation work on Cold Water Systems
2.5 how to interpret system design information on the positioning requirements for Cold Water System components
2.6 how to interpret information on the fixing requirements of Cold Water System components
3. the positioning and fixing requirements for system components to conform to the system design and intended functions
3.1 layouts of Cold Water Systems to conform to legislative requirements and recommendations
3.2 the positioning of Cold Water System components to conform to industry standards and system design requirements
3.3 how to fix Cold Water System components to conform to industry standards and system design requirements, including the fixing of pipework, controls, storage cisterns, insulation sets
4. the procedures required for connecting to input services or connecting pipework into existing systems
4 .1 how to connect Cold Water Systems components to input services using methods that conform to industry requirements, including positioning of control valves, and system drainage provisions
4.2 how to connect Cold Water Systems components to existing systems pipework using methods that conform to industry requirements
4.3 how to connect Cold Water Systems pipework to storage cisterns, including connection and termination of overflow and warning pipes.
4.4 the jointing methods and materials approved for use on Cold Water Systems components
8. the range of tests used to confirm the soundness of systems and components and how to use the range of soundness test equipment
8.1 the different types of test used for Cold Water Systems installations including pressure, static pressure, and air tests, and procedures and work sequences for each type of test
8.2 the hygiene and charging procedures for newly installed, or extensions to existing Cold Water Systems
8.3 methods of preventing the unauthorised/inadvertent use of Cold Water Systems installations that are not ready for use, including sealing all open ends on pipework, securing controls on incoming service or supply, placing warning notices on controls, advising customers or other trades
8.4 the importance of advising customers or line managers when testing is about to take place, when testing has been completed, and when the system is ready for use
Element 12.1 Decommission Systems Knowledge Outcomes
1. the importance of confirming the system design, specification, functions and outcomes of suspending the operation of the system
1.1 the importance of interpreting information on the Cold Water System or component, including information gained from site inspection, to confirm the outcomes of decommissioning the system or component
1.2 the persons with whom liaison should take place before, during and after the decommissioning process, including customers, other appropriate trades, line manager
1.3 the industry requirements, standards, and tests and procedures used for decommissioning Cold Water Systems
2. the need to liaise with others whose procedures or routines may be affected by the suspension of the system operation
2.1 how to identify other persons, including customers, and other trades whose work or routines may be affected by the decommissioning procedures
2.2 how to liaise with other persons to minimise disruption to their work or routines
3. the potential hazards that could arise from de -commissioning activities and the checks to be carried out before de -commissioning takes place
3.1 the potential safety hazards that could arise from the decommissioning of Cold Water Systems, including the interruption of supply to other systems
3.2 the checks to be carried out in advance of system decommissioning to ensure that any potential hazards that could arise, have been removed
4. de -commissioning procedures for temporary and permanent de -commissioning of systems
4.1 identify the differences between the tests and procedures for temporary and permanent decommissioning of Cold Water Systems
4.2 the different actions and procedures to be used when a full or part system, or individual component is being decommissioned 5. the precautions to ensure that de -commissioned systems do not prove a safety hazard - measures to prevent systems being brought into operation - safety and warning notices
5.1 the precautionary actions including liaison with customer or other system or building users, sealing of open pipework, labelling of controls, to ensure that decommissioned Cold Water Systems do not become a hazard
5.2 the types of warning notices that are appropriate for use on temporarily or permanently decommissioned systems
Components
Knowledge Outcomes
1. the range of information that should be available on the routine and non-routine service and maintenance requirements of systems and components
1.1 the range of information that should be available on Cold Water Systems components including specifications and schedules, manufacturers’ information, services and maintenance schedules
1.2 the details that may be obtained from the different information sources
2. the maintenance procedures across the range of systems and components
2.1 the activities that make up routine maintenance schedules for Cold Water Systems components
2.2 the industry standards for routine maintenance of Cold Water Systems components, including compliance with Codes of Practice, BS Recommendations, Manufacturers’ specifications.
2.3 the requirements of health and safety legislation for safety in the routine maintenance of Cold Water Systems components
3. how to plan maintenance procedures to minimise interference with system operation and customer routines
3.1 the other persons, including the customer and co-contractors whose work or routines may be affected by maintenance activities on Cold Water Systems components
3.2 how to plan the maintenance of Cold Water Systems components to minimise system downtime
3.3 the importance of ensuring that all tools, equipment, and materials will be available as required, and the costs of delays
6. the tools and equipment required for routine maintenance operations
6.1 the tools and equipment required for maintenance operations, including hand and powered tools
6.2 the access equipment used for routine maintenance operations on Cold Water Systems components including stand steps, ladders, and trestle
Knowledge Outcomes
1. how to use performance specifications for systems and components, and maintenance procedures necessary to restore or maintain the continued performance of systems and components
1.1 the Cold Water Systems components that require routine maintenance, including pipe materials, controls, and storage cisterns
1.2 how to interpret the required performance of Cold Water Systems and components using performance specifications, manufacturer’s technical data, codes of practice and BS Recommendations
2. the maintenance procedures necessary to ensure compliance with industry requirements for routine and non-routine maintenance activities
2.1 the industry requirements for routine maintenance of Cold Water Systems pipe materials and components, including compliance with specifications, manufacturer’s technical data, codes of practice and BS Recommendations
2.2 how to ensure compliance with the requirements of safety legislation in carrying out routine maintenance of Cold Water Systems components
3. how to complete records and reports of the maintenance of systems and components
3.1 the types of maintenance activity for which it will be necessary to complete records of maintenance work
3.2 the information that should be included on a maintenance record
4. the action to take when the system or component does not work to full performance specification
4.1 procedures for reporting the continued failure of the Cold Water Systems component
4.2 the persons to whom it would be necessary to report continued failure of a Cold Water Systems component
4.3 circumstances in which it might be necessary to implement emergency or temporary provisions for Cold Water Supply due to delay in correcting faults
Element 16.3 Diagnose the Cause and Rectify Faults in Systems and Components Knowledge Outcomes
1. how to interpret information on system or component performance, including advice from users, visual inspections or checks or diagnosis tests to locate faults
1.1 the types of information sources on Cold Water System or component performance
1.2 how to carry out visual inspections of Cold Water Systems components to check their performance against specifications
1.3 how to obtain information on component performance from customers or system users
1.4 how to carry out diagnostic tests to determine the causes of faults in Cold Water Systems components
1.5 the causes of faults in Cold Water Systems including inadequate supply, air locks, noise, discharge from warning pipes, leaks in system components, control malfunction, corrosion of system components
4. the work action and sequences required to rectify faults in systems and components
4.1 work sequences required to rectify faults in Cold Water System pipework or components, including inadequate supply, air locks, noise, discharge from warning pipes, leaks in system components, control malfunction, corrosion of system components
5. the measures to ensure that systems do not present a safety hazard to potential users, or the workforce, when carrying out rectification procedures
5.1 the importance of ensuring that appropriate liaison has taken place before, during, and after maintenance activities
5.2 the measures to be taken to prevent the unauthorised use of systems or components on which maintenance work is being carried out, including safe isolation of the system component, sealing of any open pipework, labelling of controls
7. how to isolate unsafe systems and components
7.1 how to interpret information, including that gained by visual inspection, and information given by customers or persons in authority, to determine systems layouts, including the positions of pipework, controls, storage cisterns
7.2 methods of ensuring that unsafe systems cannot be used, including securing of controls, labelling controls, draining sections of pipework, posting warning notices, informing system users
General Range:
Non-complex systems and components to meet the requirements of systems in dwellings, or in buildings (or parts of buildings) with a similar systems requirement to a dwelling
The range covered is direct & indirect systems fed from storage (excludes unvented hot water systems).
. component installation (PC 7.1.1, 7.1.9) the sources of information on the preparatory work necessary for the system or (Range 1, 9, 10)
1.1 the sources of legislation governing the layout and positioning of components for Direct and Indirect Domestic Hot Water Systems, including pipe materials, fittings, controls, storage cisterns and cylinders, and incoming services
1.2 sources of information on the fixing and installation requirements for Domestic Hot Water Systems components
5. the input services or supplies required for new systems or components, or for extending systems or adding components to existing systems - how to confirm that input services are adequate
5.1 methods of identifying the water supply requirements of Direct or Indirect Domestic Hot Water Systems or components
5.2 methods of confirming that input water supply or existing supply meets the requirements of the system or components
6. the persons to whom deficiencies in input services should be reported and procedures for isolating input services
6.1 the persons to whom deficiencies in input water supply should be reported, including the customer, co-contractors, or other building users
6.2 the importance of ensuring that appropriate actions are taken to remedy deficiencies in input water supply before the connection of the system or component
8. the tools, equipment, materials and components required for the system installation - order and supply advice, delivery and checking procedures
8.1 the range of tools and equipment required for the installation of Domestic Hot Water Systems and components
8.2 the range of materials and components required for the installation of Domestic Hot Water Systems, including pipe materials, pipe fittings, controls, fixings, storage cisterns and cylinders
. purposes (PC 7.2.2) how to measure and record installation and site details for prefabrication (Range 2, 3)
1.1 how to interpret drawings of Domestic Hot Water Systems installations to establish positions of pipework, fittings, fixings, controls, storage cisterns & cylinders
1.2 methods of measuring locations into which Domestic Hot Water Systems pipework and components are to be installed and recording dimensions, angles, and sizes of pipework for prefabrication purposes
2. the industry practices and work standards for fabricating and installing system components
2.1 methods of cutting, bending, jointing, and installing all materials used for Domestic Hot Water Systems installations
2.2 the industry standards of workmanship for Domestic Hot Water Systems installations
2.3 the safety practices appropriate to fabrication and installation work on Domestic Hot Water Systems
2.4 how to interpret system design information on the positioning requirements for Domestic Hot Water System components
2.5 how to interpret information on the fixing requirements of Domestic Hot Water System components
3. the positioning and fixing requirements for system components to conform to the system design and intended functions
3.1 layouts of Domestic Hot Water Systems to conform to legislative requirements and recommendations
3.2 the positioning of Domestic Hot Water System components to conform to industry standards and system design requirements
3.3 how to fix Domestic Hot Water System components to conform to industry standards and system design requirements, including the fixing of pipework, controls, storage vessels, and insulation sets
4. the procedures required for connecting to input services or connecting pipework into existing systems
4.1 how to connect Domestic Hot Water Systems components to input supply using methods that conform to industry requirements, including positioning of control valves, and system drainage provisions
4.2 how to connect Domestic Hot Water Systems components to existing systems pipework using methods that conform to industry requirements
4.3 how to connect Domestic Hot Water Systems pipework to storage vessels, including connection and termination of overflow and warning pipes.
4.4 the jointing methods and materials approved for use on Domestic Hot Water Systems components
8. the range of tests used to confirm the soundness of systems and components and how to use the range of soundness test equipment
8.1 the different types of test used for Domestic Hot Water Systems installations including pressure, static pressure, and air tests, and procedures and work sequences for each type of test
8.2 the hygiene and charging procedures for newly installed, or extensions to existing Domestic Hot Water Systems
8.3 methods of preventing the unauthorised/inadvertent use of Domestic Hot Water Systems installations that are not ready for use, including sealing all open ends on pipework, securing controls on input supply, placing warning notices on controls, advising customers or other trades
8.4 the importance of advising customers or line managers when testing is about to take place, when testing has been completed, and when the system is ready for use
Element 12.1 Decommission Systems Knowledge Outcomes
1. the importance of confirming the system design, specification, functions and outcomes of suspending the operation of the system
1.1 the importance of interpreting information on the Domestic Hot Water System or component, including information gained from site inspection, to confirm the outcomes of decommissioning the system or component
1.2 the persons with whom liaison should take place before, during and after the decommissioning process, including customers, other appropriate trades, line manager
1.3 the industry requirements, standards, and tests and procedures used for decommissioning Domestic Hot Water Systems
2. the need to liaise with others whose procedures or routines may be affected by the suspension of the system operation
2.1 how to identify other persons, including customers, and other trades whose work or routines may be affected by the decommissioning procedures
2.2 how to liaise with other persons to minimise disruption to their work or routines
3. the potential hazards that could arise from de -commissioning activities and the checks to be carried out before de -commissioning takes place
3.1 the potential safety hazards that could arise from the decommissioning of Domestic Hot Water Systems, including the interruption of supply to other systems
3.2 the checks to be carried out in advance of system decommissioning to ensure that any potential hazards that could arise, have been removed
4. de -commissioning procedures for temporary and permanent de -commissioning of systems
4.1 identify the differences between the tests and procedures for temporary and permanent decommissioning of Domestic Hot Water Systems
4.2 the different actions and procedures to be used when a full or part system, or individual component is being decommissioned
hazard - measures to prevent systems being brought into operation - safety and warning notices
5.1 the precautionary actions including liaison with customer or other system or building users, sealing of open pipework, labelling of controls, to ensure that decommissioned Domestic Hot Water Systems do not become a hazard
5.2 the types of warning notices that are appropriate for use on temporarily or permanently decommissioned systems
Components
Knowledge Outcomes
1. the range of information that should be available on the routine and non-routine service and maintenance requirements of systems and components
1.1 the range of information that should be available on Domestic Hot Water Systems components including specifications and schedules, manufacturers’ information, services and maintenance schedules
1.2 the details that may be obtained from the different information sources
2. the maintenance procedures across the range of systems and components
2.1 the activities that make up routine maintenance schedules for Domestic Hot Water Systems components
2.2 the industry standards for routine maintenance of Domestic Hot Water Systems components, including compliance with Codes of Practice, BS Recommendations, Manufacturers’ specifications.
2.3 the requirements of health and safety legislation for safety in the routine maintenance of Domestic Hot Water Systems components
3. how to plan maintenance procedures to minimise interference with system operation and customer routines
3.1 the other persons, including the customer and co-contractors whose work or routines may be affected by maintenance activities on Domestic Hot Water Systems components
3.2 how to plan the maintenance of Domestic Hot Water Systems components to minimise system downtime
3.3 the importance of ensuring that all tools, equipment, and materials will be available as required, and the costs of delays
5. the materials required for routine maintenance
5.1 the consumable materials required for the maintenance of Domestic Hot Water System components, including replacement parts for controls, gland packings, floats, washers.
5.2 the sources of information on the materials required for routine maintenance of Domestic Hot Water Systems components
6. the tools and equipment required for routine maintenance operations
6.1 the tools and equipment required for maintenance operations, including hand and powered tools
6.2 the access equipment used for routine maintenance operations on Domestic Hot Water Systems components including stand steps, ladders, and trestles
Knowledge Outcomes
1. how to use performance specifications for systems and components, and maintenance procedures necessary to restore or maintain the continued performance of systems and components
1.1 the Domestic Hot Water Systems components that require routine maintenance, including pipe materials, controls, and storage vessels
1.2 how to interpret the required performance of Domestic Hot Water Systems and components using performance specifications, manufacturer’s technical data, codes of practice and BS Recommendations
1.3 the routine maintenance procedures necessary to maintain Domestic Hot Water System component performance
2. the maintenance procedures necessary to ensure compliance with industry requirements for routine and non-routine maintenance activities
2.1 the industry requirements for routine maintenance of Domestic Hot Water Systems pipe materials and components, including compliance with specifications, manufacturer’s technical data, codes of practice and BS Recommendations
2.2 how to ensure compliance with the requirements of safety legislation in carrying out routine maintenance of Domestic Hot Water Systems components
3. how to complete records and reports of the maintenance of systems and components
3.1 the types of maintenance activity for which it will be necessary to complete records of maintenance work
3.2 the information that should be included on a maintenance record
4. the action to take when the system or component does not work to full performance specification
4.1 procedures for reporting the continued failure of the Domestic Hot Water Systems component
4.2 the persons to whom it would be necessary to report continued failure of a Domestic Hot Water Systems component
4.3 circumstances in which it might be necessary to implement emergency or temporary provisions for Domestic Hot Water supply due to delay in correcting faults
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faults (PC 16.3.1) how to interpret information on system or component performance, including advice from users, visual inspections or checks or diagnosis tests to locate (Range 1, 2, 3, 4)
1.1 the types of information sources on Domestic Hot Water System or component performance
1.2 how to carry out visual inspections of Domestic Hot Water Systems components to check their performance against specifications
1.3 how to obtain information on component performance from customers or system users
1.4 how to carry out diagnostic tests to determine the causes of faults in Domestic Hot Water Systems components
1.5 the causes of faults in Domestic Hot Water Systems including inadequate supply, air locks, noise, discharge from warning pipes, leaks in system components, control malfunction, corrosion of system components 4. components (PC 16.3.1, 16.3.3) the work action and sequences required to rectify faults in systems and (Range 1, 2, 3, 4)
4.1 work sequences required to rectify faults in Domestic Hot Water System pipework or components, including inadequate supply, air locks, noise, discharge from warning pipes, leaks in system components, control malfunction, corrosion of system components
5. the measures to ensure that systems do not present a safety hazard to potential users, or the workforce, when carrying out rectification procedures
5.1 the importance of ensuring that appropriate liaison has taken place before, during, and after maintenance activities
5.2 the measures to be taken to prevent the unauthorised use of systems or components on which maintenance work is being carried out, including safe isolation of the system component, sealing of any open pipework, labelling of controls
7. how to isolate unsafe systems and components
7.1 how to interpret information, including that gained by visual inspection, and information given by customers or persons in authority, to determine systems layouts, including the positions of pipework, controls, storage vessels
7.2 methods of ensuring that unsafe systems cannot be used, including securing of controls, labelling controls, draining sections of pipework, posting warning notices, informing system users
General Range: |
