Domestic Only – MLP New Entrants Course Content

27 Training Programme Units of Learning Criteria

Unit 1: Safety, Legislation and Standards Performance Criteria In relation to gas installations and appliances, to include those with electrical equipment, you will need to be able to: Apply the knowledge and understanding of the gas safety (installation & Use) regulations whilst working on gas installations and appliances Apply the required limited scope knowledge and understanding, of the electricity at work regulations 1989 (EWR), whilst working on gas installations and appliances with electrical equipment Prove safe gas and electrical isolation before working on gas appliances, systems and components Knowledge and Understanding In relation to working on downstream domestic gas installations you will need to know and understand: Understand the hierarchy of gas legislation in the UK Application of the gas safety (installation & use) regulations Limited scope application of the electricity at work regulationsAsbestos related hazards and application of adequate safety measures 05.Safety precautions when other hazardous materials are encountered whilst working in the downstream gas industry. Your responsibilities regarding health, safety and the environment. Use of personal protective equipment. Information available to gas safe registered operatives: Legislative normative and informative document lists Industry standard updates Safety alertsTechnical bulletins

Unit 2: Gas Emergency Actions and Procedures Knowledge and Understanding In relation to emergency actions, you will need to know and understand: 01 .Your priorities of actions and responsibilities Actions necessary to stop a gas escape downstream of an emergency control valve (ECV) Actions to take if gas continues to escape after turning off the supply Hazardous ignition sources and their elimination How to prevent/reduce dangerous concentrations of gas in the atmosphere Advice to give occupants in the event of a gas related emergency In relation to properties of natural gas, you will need to know and understand: Limits of flammability of natural gas. 02.Specific gravity of natural gas and its effect in relation to air.

Unit 3: Products and Characteristics of Combustion Performance Criteria In relation to complete and incomplete combustion, you will need to be able to: Visually inspect flame pictures and identify complete and incomplete combustion Identify signs of incomplete combustion in the location of open flue and room sealed appliances Identify signs of incomplete combustion within open flue and room sealed appliances In relation to carbon monoxide (CO) detectors and indicators, you will need to be able to: Identify different types of CO detectors (audible, visual and readable) Install-commission-maintain CO detectors (audible, visual and readable) In relation to combustion performance analysis, you will need to be able to: Undertake combustion performance analysis on a range of appliances (flue- less, open flue and room sealed) Read and record CO, CO2, levels and CO/CO2 ratios for each appliance Adjust and re-test appliances where CO, C02, levels and CO/CO2 ratios are outside the tolerance of the manufacturer’s instructions Knowledge and Understanding In relation to complete and incomplete combustion, you will need to know and understand: The main constituents of complete and incomplete combustion. Air requirements for complete combustion. Causes of appliance incomplete combustion at the burner, combustion space, heat exchanger and flue. The progressive symptoms of CO poisoning. What advice to give to a person who describes symptoms of being affected by products of combustion or when indicator/detector has activated. Other sources of CO and CO2 in dwellings. Ambient levels of CO in atmosphere. Levels of CO within dwellings and effect on electronic detectors. Causes of activation of CO detectors and indicators. Ambient levels of CO2 in the atmosphere. Critical levels of CO2 that could cause vitiation affecting the combustion process. Movement of products of combustion within properties.

In relation to carbon monoxide (CO) detectors and indicators, you will need to know and understand: Manufacturing standards for electronic CO detectors (alarms). How combustion products may enter premises. Additional allowance for CO levels for gas cookers. Regional differences in Building Regulations regarding CO detection when installing new or replacement fixed combustion appliances. In relation to combustion performance analysis, you will need to know and understand: Re-testing appliances when new components have been fitted. Unsafe situation categories for appliances that fail combustion performance analysis. Action levels for gas appliances when undertaking combustion performance analysis. Types of portable combustion analysers.

Unit 4: Ventilation for Domestic Gas Burning Appliances Performance Criteria

In relation to providing ventilation for domestic gas burning appliances, you will need to be able to: Calculate the free area of a range of air bricks (including terracotta types) and air vents Identify correct and incorrect types of air vents and grilles e.g. fly screens Identify inadequate ventilation Identify correct and incorrect positioning/location/restrictions of air vents (wall, window, floor, ceiling and ducted) direct to outside/series air vents Knowledge and Understanding In relation to providing ventilation for domestic gas burning appliances, you will need to know and understand: The requirement for ventilation Siting ventilation (wall, window, floor, ceiling and ducted) Ventilation routes direct to outside air, internal and series air vents Installing ventilation grilles and vents and restrictions Types of ventilation grilles and vents Adventitious air supplies Sizing grilles and vents (free area availability) Calculating ventilation for: Combustion of open flue appliances Compartments (open, balanced and fan flue appliances) Multi-appliance installations (open flue & flue-less appliances within the same room/space) Ventilation for flue-less appliances (including cooking, water heating and space heating) Ventilator location for single and multiple flue and flue-less Decorative Fuel Effect (DFE) space heaters Additional ventilation requirements e.g. extractor fans, cooker hoods, driers Ventilation labels and notices Effects of oil or solid fuel appliances on ventilation for DFEs Effects of double glazing/cavity insulation/draught proofing on ventilation provision Identification and installation of intumescent air vents Operation of passive stack ventilation Ventilation for internal kitchens

Unit 5: Installation of Pipework and Fittings Performance Criteria

In relation to the installation of domestic pipework and fittings, you will need to be able to: Install copper tube using appropriate capillary end feed fittings, methods and agents Join mild steel pipe using appropriate fittings, methods and agents Join copper tube and mild steel pipe using appropriate compression fittings, methods and agents De-commission gas installations (including meter) and tee into existing copper pipework Re-commission gas installations (including meter) after teeing into existing copper pipework Demonstrate correct use of temporary continuity bond Install copper pipework passing through a cavity wall Apply gas pipework protective coating Identify a range of gas installation pipework safety defects Knowledge and Understanding In relation to the installation of domestic pipework and fittings, you will need to know and understand: Copper pipe and fittings standards, suitability and use Mild steel pipe and fittings standards, suitability and use Copper to mild steel connections Flexible and rigid connections Jointing and cleaning agents for copper and mild steel Pipe supports, clips and fixing for copper and mild steel pipework Safety requirements for pipework installations Between joists in floors/roof spaces (solid timber; metal web; timber engineered) Across solid timber joists fitted with flooring Buried in concrete Behind dry lined walls Within timber constructed walls Passing through a timber frame/masonry wall – accommodating movement External surface mounted pipework Precautions when using an exposed flame when soldering joints on pipework previously containing gas and/or when a gas meter is already fitted Restrictions on use of union and compression fittings Main equipotential bonding (minimum cross sectional area) Positioning and installation of gas controls and isolation valves Making and breaking gas connections on appliances

Ventilation for pipework in ducts Pipe sizing for appliances Fixing installation pipework when connected to a meter not securely restrained Installing fire stopping in buildings containing flats or maisonettes Installing pipework inside a protected shaft or other fire escape route Ventilation for protected shafts Pipework for multi-occupancy buildings Minimum depth of pipework buried below ground Pipework installed under the base of a wall or foundations Use of PE pipework Identification of unsafe situations where installation pipe from MP meter box directly enters premises through rear meter box spigot Identification of concern for safety and MP gas supply labels

Unit 6: Tightness Testing and Purging Performance Criteria

In relation to testing and purging domestic natural gas installations, you will need to be able to: Test domestic low pressure gas installations for tightness using air Test domestic low pressure gas installations for tightness using gas Purge domestic low pressure gas installations Test existing domestic natural gas installations for tightness with a medium pressure gas supply without a meter inlet valve Test existing domestic natural gas installations for tightness with a medium pressure gas supply with a meter inlet valve Knowledge and Understanding In relation to testing and purging domestic natural gas installations, you will need to know and understand: The selection and reading of a range of pressure gauges Permissible pressure drops Meter size/type including E6, G4, G10 and SMART meter designations Pipe diameters and installation volumes Appliances connected to a gas supply and not isolated Where no meter is fitted Perceptible movement on pressure gauges Permissible pressure drop for existing installations Electronic token meter tamper devices and their effect on tightness testing Actions: When the control valve used for the tightness test is letting by Actions: When smell of gas after completion of satisfactory tightness test Actions: Smell of gas and the ECV is turned off Actions: When a leaking installation cannot be repaired Tightness testing pipework: OD >35 mm or IV >0.035 m³ Tightness testing prior to alteration or extension to existing installations Acronyms and symbols IV for: E6, U6 and G4 meters connected to 35 mm diameter pipework IV for: G10 meters connected to any pipework of diameter < 35 mm Purging installations where the installation volume is < 0.02 m³ Purging installations where the installation volume is > 0.02 m³

Unit 7: Checking and/or Setting Meter Regulators Performance Criteria

In relation to checking and/or setting domestic meter regulators on natural gas installations, you will need to be able to: Measure and record the installation standing pressure. Measure and record the installation working pressure. Determine if the installation working pressure is correct or incorrect. State the actions to take if the working pressure is incorrect. Knowledge and Understanding In relation to checking and/or setting domestic meter regulators on natural gas installations, you will need to know and understand: The effects of low and high flow rates on a meter regulator. The effects of pressure absorption across primary meter installation. The operation of a gas meter regulator. Identifying a medium pressure meter/regulator installation.

Unit 8: Unsafe Situations, Emergency Notices and Warning Labels Performance Criteria

In relation to unsafe situations, emergency notices and warning labels, you will need to be able to: Identify unsafe situations. Classify unsafe situations. Label unsafe appliance(s) and/or installation(s). Identify what to report under RIDDOR. Identify when to report under RIDDOR. Demonstrate the procedure to follow for each classification of unsafe situation. Complete, explain and issue appropriate warning/advisory notices to the appropriate person(s). Knowledge and Understanding In relation to unsafe situations, emergency notices and warning labels, you will need to know and understand: How to deal with each classification of unsafe situation Notification of each classification of unsafe situation Upgrading a classification of unsafe situations How to deal with appliances labelled ‘Concern for Safety’ Correct use of: Do not use labels Concern for safety labels Medium pressure gas supply Warning notice forms Advisory notices Situations reportable under RIDDOR Reporting to HSE Gas Industry Unsafe Situation Procedure (GIUSP): Purpose Scope Gas incidents

Unit 9: Operation and Positioning of Emergency Isolation Controls & Valves Performance Criteria In relation to the operation and positioning of emergency isolation controls and valves, you will need to be able to: Identify incorrectly positioned emergency isolation controls and valves Identify correctly positioned emergency isolation controls and valves Demonstrate dealing with incorrectly positioned emergency isolation controls and valves Identify the correct labels to attached emergency isolation controls and valves Knowledge and Understanding In relation to the operation and positioning of emergency isolation controls and valves, you will need to know and understand: Inside meter positions Outside meter positions Multi-occupancy building installations: External risers Internal risers Remote meters Types of isolation valve used

Unit 10: Checking and Setting Appliance Burner Pressures & Gas Rates Performance Criteria

In relation to checking and setting appliance burner pressures and gas rates, you will need to be able to: Measure the operating pressure of an appliance Measure the gas rate of an appliance using a gas meter test dial Measure the gas rate of an appliance using an electronic gas meter Confirm that the gas rate conforms to the rated appliance input stated in the manufacturer’s instructions Demonstrate the requirements for range rated appliances Knowledge and Understanding In relation to checking and setting appliance burner pressures and gas rates, you will need to know and understand: The reasons for excessive pressure loss at appliance The effects of excessive pressure at appliance The effects of meter pressure absorption under full load conditions The use of electronic pressure gauges

Unit 11: Operation and Checking of Appliance Gas Safety Devices & Controls Performance Criteria

In relation to the following gas safety devices and controls: Gas taps Cooker (fold down lid) safety shut off valve Thermo-electric valves Solenoid valves Liquid expansion valves (thermostat and flame supervision device) Thermostats electrical Regulators Multi-functional controls You will need to be able to: Identify the gas safety device/control Check the operation of each gas safety control/device is to manufacturer’s instructions Identify any gas safety controls/devices that are not working correctly by operation, testing and/or visual/audible methods Demonstrate diagnosis of faulty gas safety devices/controls Repair or replace faulty gas safety control/devices Confirm correct operation of repaired/replaced gas safety controls/devices to manufacturer’s instructions Explain safe operation of gas safety controls/devices Knowledge and Understanding In relation to the following gas safety devices and controls: Gas taps Cooker (fold down lid) safety shut off valve Thermo-electric valves Solenoid valves Liquid expansion valves (thermostat and flame supervision device) Thermostats electrical Regulators Multi-functional controls You will need to know and understand: The appliance data critical for correct spare part identification of gas safety control/devices The principles of operation of each control/device The sequence of operation of each control/device

Unit 12: Chimney Standards Knowledge and Understanding In relation to existing solid fuel chimneys, you will need to know and understand: Suitability checks required Minimum size of unlined chimney used for gas fires before a terminal is required Minimum size of side openings for slab over chimneys Minimum cross sectional area of new chimney installations for gas fires Operation of dampers and restrictor plates Effects of other fuels on chimneys and the need for cleaningThe minimum void dimensions below appliance connections Catchment spaces and standard dimensions/volumes Types of flue liners Restrictions on use of poured concrete liners Sealing and support for flexible flue liners in chimneys Inspection of chimneys through roof spaces Chimney height/appliance types where liners are required Sealing chimney voids Fitting bird guards to chimneys Suitable and unsuitable terminals for space heaters In relation to pre-cast flue systems, you will need to know and understand: Flue design, standards, operation, routing, connection, termination Minimum cross sectional area of new gas pre-cast flue block Minimum requirement of vertical flue blocks before off-sets Jointing materials for pre-cast flue blocks Minimum flue size/diameter used to connect pre-cast transfer blocks to termination point Effects of temperature on installation of flues Suitability of gas appliances for use with pre-cast flues In relation to chimneys for individual open flue natural draught appliances, you will need to know and understand: Construction and operation of a chimney Types of chimney material Methods of jointing chimney componentsTermination positions for chimney outlets Ridge terminal positions Effects of adjacent structures; basement areas; light wells and retaining walls on terminal positions

Dealing with downdraught on steeply pitched roofs Restrictions to siting and lengths of chimney run to avoid condensation Minimum up-stand for chimneys passing through tiled or slated roofs Clearances when passing through combustible material Chimneys passing adjacent to combustible material or through other dwellings Terminals and/or guards – protection against wildlife Pre-fabricated metal starter box for space heaters Passive stack ventilation systems in houses, where open flue natural draught appliances are fitted Sealing flues surrounded by enclosures In relation to fan draught chimneys for open flue appliances, you will need to know and understand: Requirements prior to installing fans in secondary flues Additional requirements when fans are installed in secondary flues Fan dilution and shared open flue, fanned draught systems in domestic dwellings In relation to shared open flue chimneys for natural draught appliances, you will need to know and understand: Two or more appliances connected to same flue Appliances with a common flue in same room Labelling appliances on shared flues installed on different floors Maintenance of shared flue systems In relation to room sealed natural draught chimney configurations for appliances, you will need to know and understand: Balanced flue construction

Outlet	position relating to appliance net input:
a.	Horizontal to an opening
b.	Below an opening
c.	Above an opening
d.	Outlet option below gutters, soil pipes, drain pipes and eaves
e.	Outlet position in car ports
f.	Balanced flue terminal guards

In relation to room sealed fanned draught chimney configurations for appliances, you will need to know and understand: Restrictions on lengths, bends etc. for fanned draught room sealed appliances Restrictions for outlet positions including horizontal and vertical configurations Enclosing chimneys Proximity of flue duct outlets to boundaries Identification of an unsafe situation by a room sealed fanned flue system enclosed without sufficient inspection facility

In relation to balanced compartments for open flue appliances, you will need to know and understand: Ducted air positioning Cross sectional areas of air inlet ducts Compartment construction In relation to room sealed appliances for shared chimneys, you will need to know and understand: Construction and operation of SE-ducts, U-ducts and communal flue systems Categories of appliances suitable for installation Chimney outlet positions for roof terminals Labelling air inlet ducts Labelling replacement appliances Maintenance of shared flue systems Requirements for replacement appliances Non-return valve requirements for appliance/exhaust ducts for communal flue systems In relation to condensing flues, you will need to know and understand: Condensate disposal position termination for appliances of heat input < 4 kW Plume management kits Differing air inlet duct and terminal positionsTerminal guards for plume kit air inlets In relation to chimneys for vertex appliances, you will need to know and understand: Construction and operation of vertex chimney Minimum height of appliance draught break above roof insulation In relation to the exchange of information and planning for chimneys, you will need to know and understand: Requirements of designer, builder, provider or installer when installing gas chimneys Chimney certificates

Unit 13: Chimney Installation, Inspection and Testing Performance Criteria

In relation to inspecting a chimney visually throughout its length to verify both correct and incorrect installation, you will need to be able to: 01 .Assess the fitness of intended appliance Determine that the flue serves only one room or appliance Ensure that the terminal position meets current legal requirements Ensure that the joint between terminal and chimney system is weather tight Determine if the chimney pipe adapter is correct Confirm that the chimney has adequate support Check any clearances from obstructions are correct Confirm that there is no corrosion or cracking Ensure the use of bends meets current requirements Confirm that the appliance draught diverter is correctly installed and in good condition Check the secondary flue is correctly positioned and in good condition Check the starter block is correctly sized and positioned Confirm that the catchment space is correct and free from debris Ensure that joints are correctly made Ensure there are no visual signs of spillage of combustion products Check the ridge terminal and flue adaptor boot are correct, in good condition and properly connected Determine if the space between flue and any combustible material is correct Ensure the flexible flue liner is correctly sealed at base and terminal position Check the seals on balanced natural and fan flues are in good condition and correctly installed Check balanced flue appliance seals in good condition and correctly installed Ensure the connection into a pre-lined chimney (clay) is correct In relation to natural draught chimneys and metallic flexible flue liners, you will need to be able to: 01 .Verify the annular space around flue and void at base of chimney is correctly sealed State the effects/hazards of unsealed flue liners and voids) Check flexible flue liner is correctly clamped and sealed at base and terminal position Identify incorrect use of flue liners In relation to plastic flue pipe systems, you will need to be able to: Classify plastic flue Join plastic flue pipe using correct methods, agents and fittings

In relation to chimneys for balanced, fan assisted and vertex flue appliances, you will need to able to: Classify balanced/fan assisted and vertex flue systems Cut flue ducts square, assemble, adjust and seal to manufacturer’s instructions Fit correct flue terminal guards Ensure the number of bends within a fan assisted flue length is to manufacturer’s instructions Check seals on balanced natural and fan flues are in good condition and correctly installed Check balanced flue appliance seals are in good condition and correctly installed Check vertex flue system operates correctly Check minimum height of flue break above roof insulation is correct Calculate correct ventilation for a vertex flue system to manufacturer’s instructions In relation to an open flue/chimney system, you will need to be able to: 01 .Apply a flue flow test Apply a spillage test with appliance connected and in operation Identify defective chimney installations In relation to checking a room sealed fan assisted positive pressure appliance installation, you will need to be able to: Identify a positive pressure appliance Fit appliance case correctly Check case seal under the correct appliance operating conditions Identify any leakage from the appliance case seals In relation to inspecting fanned flues in voids, you will need to be able to: Determine if there is adequate provision for inspection State what actions are required when there is not adequate inspection provision provided Knowledge and Understanding In relation to chimney inspection and testing, you will need to know and understand: Types of room sealed positive pressure combustion chamber appliances Causes of leakage of products of combustion from room sealed positive pressure combustion chamber appliances Checks prior to fitting case of room sealed positive pressure combustion chamber appliances

Installation and spillage testing new or used appliances when manufacturer’s instructions are not available Alternative methods of compliance when inspection hatches are not available for flues in voids

Unit 14: Installation of Open, Balanced and Fan Assisted Chimneys Performance Criteria

In relation cement based and metallic rigid open flues, you will need to be able to identify correct and incorrect: Jointing Adapters Bends Supports Spacing between chimney and combustible material Ridge terminals and ridge tile adaptorFlue-adaption into a pre-lined chimney (clay lined) In relation to flexible flue liners, you will need to be able to identify correct and incorrect: Joining at base and at chimney outlet using appropriate adaptors Clamping at chimney outlet position Sealing annular space between liner and chimney Sealing voids at chimney base – pipework etc. In relation to plastic flue pipe, you will need to be able to Identify correct and incorrect: Flue pipe jointing In relation to natural draught balanced chimney systems, you will need to be able to identify correct and incorrect: Flue duct cuts Assemble, adjust and seal to manufacturer’s instructions Flue terminal guards against balanced flue terminal In relation fan assisted balanced chimney systems, you will need to be able to identify correct and incorrect: Number of bends within flue duct length is to manufacturer’s instructions. Calculate ventilation for a vertex system Knowledge and Understanding In relation to the installation of open, balanced and fan assisted chimneys, you will need to know and understand: Insulation for chimneys for open flue appliances Condensing appliance chimneys

Chimney maintenance Guards for balanced flue terminals Effects and hazards of inadequately sealed flue liners Incorrect applications of flue liners Identify difference of vertex systems to vertical room sealed chimney configurations

Unit 15: Re-establish Existing Gas Supply and Re-light Appliances Performance Criteria In relation to re-establishing an existing domestic gas supply and re-lighting the appliances, you will need to be able to: Check the installation is gas tight Purge the installation and appliances of air Establish a stable flame on each appliance Visually inspect each appliance and identify any unsafe situations Confirm satisfactory operation of user controls Knowledge and Understanding In relation to re-establishing an existing domestic gas supply and re-lighting the appliances, you will need to know and understand: 01 .Actions to take when an un-commissioned appliance is identified Actions to take if pipework and appliance(s) are not tested (commissioned) when the gas supply is re-established

Unit 15: Cookers Performance Criteria

In relation to cookers, you will need to be able to: Check gas supply pipe terminates at an acceptable position for appliance connection Check gas hose and bayonet connection conform to requirements Locate and secure appliance stability device Check appliance assembly is complete and fit for use and purpose Connect gas supply to appliance and check for gas tightness Ensure appliance is correctly located, level and stable Commission the appliance in accordance with manufacturer’s instructions Service the appliance in accordance with manufacturer’s instructions Identify defects on gas safety components Explain safe operation and use of appliance Knowledge and Understanding In relation to cookers, you will need to know and understand: How to identify and diagnose gas safety faults Suitable and unsuitable appliance room/space locations Clearances – proximity of combustible materials Fitting cooking appliances in dwellings in multi-occupancy buildings

Unit 16: Fires and Wall Heaters Performance Criteria

In relation to fires and wall heaters, you will need to be able to: Check appliance assembly is complete and fit for use and purpose Check chimney/flue is complete throughout its length and is correctly terminated Use smoke test to confirm that flue discharges correctly only to atmosphere Check catchment area conforms to requirements Install flue spigot restrictor, if required Seal fire to surround/wall (inset) Fit closure plate and seal to fireplace opening (radiant convector) Connect gas supply to appliance and check for gas tightness Position coal/log effect fuel correctly Position radiant element correctly Commission the appliance in accordance with manufacturer’s instructions Service the appliance in accordance with manufacturer’s instructions Measure combustion performance on flue-less gas fire to Mis or BS 7967-2 Interpret combustion performance test readings Identify defects on gas safety components Explain safe operation and use of appliance Knowledge and Understanding In relation to fires and wall heaters, you will need to know and understand: How to identify and diagnose gas safety faults Suitable and unsuitable appliance room/space locations Ventilation location for DFEs and flue-less gas fires Minimum flue sizes for ILFEs Installation of metal flue systems and flue boxes for gas fires Direct flue connection appliancesTypes and installation of heating stoves Electrical gas safety control devices for fanned draught gas fires Canopy requirements for decorative gas fires Fire protection, including user and floors Advice to user, including operation and maintenance Fitting appliances in raised builder’s openings Advice to user for fitting independent CO alarms Effects of fitting a flue-less gas fire into an opening under an existing flue; in front of a fireplace opening; close to an existing flue or close to an air vent Commissioning flue-less appliances Maintenance and safety checks for flue-less space heaters Fitting a flue kit Direct flue connection fires when fitting kit to an unlined chimney

Min. Flue/chimney dimensions Calculating debris catchment void Labelling Flue-less gas fires installed in front of redundant solid fuel back boilers

Unit 17: Wet Central Heating Boilers, Systems and Controls Performance Criteria

In relation to central heating boilers, you will need to be able to: Check the appliance assembly complete and fit for use and purpose Seal the appliance correctly to flue system Check the flue is correctly assembled, supported and operating correctly Commission the appliance in accordance with manufacturer’s instructions Service the appliance in accordance with manufacturer’s instructions Check an air/gas ratio valve, is set correctly at high and low limits, in accordance with manufacturer’s instructions and adjust if necessary In relation to central heating controls and components, you will need to be able to: Test safe and correct operation of controls and components Decommission controls with defects and replace with new controls Decommission components with defects and replace with new components Install and maintain Y plan plumbing design configuration Install and maintain S plan plumbing design configuration Install and maintain combination boiler plumbing design configuration Knowledge and Understanding In relation to central heating boilers, you will need to know and understand: How to identify and diagnose gas safety faults The effect of ineffective appliance case seals Suitable and unsuitable appliance room/space locations Clearances- proximity of combustible materials – fire proofing of compartments Operation of mechanical and electrical gas safety control devices Condensate removal and disposal Principle of adjustment of air/gas ratio valves CO, CO2 and combustion ratio checks using an ECGA when commissioning and/or following part replacement of a central heating boiler incorporating air/gas ratio control valve technology How to deal with 2 or more domestic central heating boilers fitted within a single space with an aggregate total in excess of 70kW Design principles of system and combination boilers 11 .The sequence of operation of a fan flue automatic ignition boiler from heat demand to proven burner ignition Energy efficiency requirements In relation to central heating system design, you will need to know and understand: 01 .The component parts of an open vented system The component parts of a sealed system

System plans including S Plan and Y Plan Energy efficiency requirements In relation to central heating controls, you will need to know and understand: Basic electrical principlesVoltage Current Resistance Ohm’s law The basic operating principles and wiring connections of: Motorised valves. Room thermostats.Time controls.Time and temperature controls. Pump over-run requirements. Energy efficiency requirements. Water Heaters Performance Criteria In relation to water heaters, you will need to be able to: Check appliance assembly is complete and fit for use and purpose Seal the appliance to the flue Connect gas supply to appliance and check for gas tightness Commission the appliance in accordance with manufacturer’s instructions Service the appliance in accordance with manufacturer’s instructions Identify defects on gas safety components Explain safe operation and use of appliance Knowledge and Understanding In relation to water heaters, you will need to know and understand: How to identify and diagnose gas safety faults Suitable and unsuitable appliance room/space locations Identification of the effects of a scaled heat exchanger The effect of ineffective appliance case seals Operation of mechanical and electrical gas safety control devices Clearance requirements – proximity of combustible materials – fire proofing of compartments

Unit 18: Ducted Air Heaters Performance Criteria

In relation to ducted air heaters, you will need to be able to: Check appliance assembly is complete and fit for use and purpose Check compartment construction and ventilation meet current requirements Isolate gas and electricity supplies Disconnect and remove existing heater Position replacement heater in compartment Size, locate and adapt plenum base to fit replacement appliance Size, locate and adapt return air duct to fit replacement appliance Connect flue to appliance Connect gas supply to appliance and check for gas tightness Commission the appliance in accordance with manufacturer’s instructions Service the appliance in accordance with manufacturer’s instructions Identify defects on gas safety components Explain safe operation and use of appliance Knowledge and Understanding In relation to ducted air heaters, you will need to know and understand: How to identify and diagnose gas safety faults Causes and effects of split heat exchangers Suitable and unsuitable locations/compartments – fire proofing Air filters and their effects on appliance Requirements when combustion air is supplied by heater’s circulating fan Condensate removal and disposal

Unit 19: Laundry Appliances (Tumble Dryers) Performance Criteria In relation to laundry appliances, you will need to be able to: Check gas supply pipe terminates at an acceptable position for appliance connection Check gas hose and bayonet connection conform to requirements Locate and secure appliance restraining device Check appliance assembly is complete and fit for use Connect gas supply to appliance and check for gas tightness Ensure appliance is correctly located, level and stable Commission the appliance in accordance with manufacturer’s instructions Service the appliance in accordance with manufacturer’s instructions Identify defects on gas safety components Explain safe operation and use of appliance Knowledge and Understanding In relation to laundry appliances, you will need to know and understand: How to identify and diagnose gas safety faults Suitable and unsuitable appliance room/space locations Identifying acceptable vent hose termination position Adverse effect of an externally vented tumble dryer on other open flue appliances

Unit 20: Leisure Appliances Performance Criteria

In relation to laundry appliances, you will need to be able to: Check gas supply pipe terminates at an acceptable position for appliance connection Check gas hose and bayonet connection conform to requirements Check appliance assembly is complete and fit for use Connect gas supply to appliance and check for gas tightness Ensure appliance is correctly located, level and stable Commission the appliance in accordance with manufacturer’s instructions Service the appliance in accordance with manufacturer’s instructions Identify defects on gas safety components Explain safe operation and use of appliance Knowledge and Understanding In relation to laundry appliances, you will need to know and understand: How to identify and diagnose gas safety faults Suitable and unsuitable appliance room/space locations Identifying acceptable positions for leisure gas points Clearances from combustible materials

Unit 21: Electrical Testing & Fault Finding for Gas Engineers (ETFGE) Performance Criteria

In relation to all appliances with electrical equipment, you will need to be able to: Apply the required limited scope knowledge and understanding, of the electricity at work regulations 1989 (EWR), whilst working on gas installations and appliances with electrical equipment Prove safe electrical isolation before working on gas appliances, systems and components Perform an earth fault loop impedance test and interpret results Perform a socket test and interpret results Perform preliminary electrical safety checks and interpret results Locate and repair a defect on an electrical control and/or component Replace a defective electrical control and/or component Identify earthing systems within UK domestic dwellings Knowledge and Understanding In relation to all appliances with electrical equipment, you will need to know and understand: Limited scope application of the electricity at work regulations Limited scope application of electrical standards Hierarchy of legislation Electrical science Earthing systems Safe isolation Earth fault loop impedance Other electrical safety tests Wiring sequences of appliance control systems Electrically operated controls and components within appliances and systems Fault finding principles and techniques Testing live and risk assessment

28 NICEIC Certification Domestic EGC Process Flow Provider receives application and corresponds with potential learner Provider discusses programme requirements and potential learner’s background Provider ensures real work environment employer/sponsor is available Learner invited to an evaluation and selection session Provider evaluates learner and employer/sponsor status Provider ensures learner is aware of programme and timescale commitments Provider selects suitable learners for programme Provider liaises with learner and plans course and mode of attendance Provider documents learner personal details and that of employer/sponsor Provider liaises with employer/sponsor and discusses programme requirements Learner attends planned course Learner completes all registration and administration details Provider completes “Training Provider Delivery Plan” Learner completes “Individual Learner Plan” Provider inducts learner on course content, planning and methodology Provider inducts learner on Health, Safety and Environment Provider delivers programme content per course time-table and criteria Learner commits to the learning environment and attains all required objectives Provider inducts learner on real work environment requirements Learner attends real work environment and gathers all required evidence Employer mentors learner with suitably qualified gas safe registered engineer Qualified Gas Safe registered engineer evaluates evidence gathered by learner Learner returns to provider with gathered real work environment evidence Learner progresses within learning environment Provider evaluates and validates returned real work environment evidence This process repeats until learner has completed learning programme and has gathered sufficient real work environment evidence. Provider will internally review progress with learner at convenient intervals Provider internally verifies all learning environment and real work environment evidence within learners portfolio and if sufficient signs off learner. NICEIC external verifier samples learner portfolio and if sufficient signs off for Elementary Certificate award for “Domestic (l&M) Engineers” specific to the core and appliance pathway. Note: Provider must communicate complaints process to learner

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