Major Work Activity G - Services fuel systems, appliances and ancillary equipment

Table of Contents

Task G-20 Maintains fuel systems, appliances and ancillary equipment

Task Descriptor

Maintaining fuel systems, appliances and ancillary equipment is important to ensure safe operation, optimal efficiency and reliable service.

G-20.01 - Inspects system components and operation

G-20.01 - Inspects system components and operation
NL NS PE NB QC ON MB SK AB BC NT YT NU
NV yes NV yes yes ND yes ND yes yes NV NV NV
Skills
Reference Code Performance Criteria Evidence of Attainment
G-20.01.01P select and use tools and equipment tools and equipment are selected and used according to task
G-20.01.02P verify that installation conforms to manufacturers’ specifications, codes, standards and regulations installation is verified that it conforms to manufacturers’ specifications, codes, standards and regulations
G-20.01.03P inspect fuel delivery system components and verify operation fuel delivery system components are inspected, and operation is verified
G-20.01.04P verify operation of controls controls are verified to ensure they operate according to end-user requirements, manufacturers’ specifications, codes, standards and regulations
G-20.01.05P inspect heat delivery systems heat delivery systems are inspected to identify operation, wear, damage or deterioration
G-20.01.06P inspect venting, chimneys and air supply venting, chimneys and air supply are inspected to ensure operation according to codes, standards and regulations
G-20.01.07P inspect refractory components of combustion chamber and heat exchangers refractory components of combustion chamber and heat exchangers are inspected to identify cracks and deterioration
G-20.01.08P inspect mechanical components mechanical components are inspected to identify operation, wear, damage and deterioration
G-20.01.09P perform sensory inspection of safety components to check operation sensory inspection of safety components is performed to check operation
G-20.01.10P verify functional operation of flame safeguard systems flame safeguard systems are verified as operational
G-20.01.11P verify functional operation of combustion control systems combustion control systems are verified as operational
G-20.01.12P verify functional operation of draft control systems draft control systems are verified as operational
G-20.01.13P verify functional operation of fuel valve train fuel valve train is verified as operational
G-20.01.14P test safety limits and controls safety limits and controls are tested to verify operation
G-20.01.15P inspect burner performance burner performance is inspected by confirming fuel consumption and using combustion data
G-20.01.16P inspect condensate lines condensate lines are inspected to verify they are clean and clear of debris
G-20.01.17P inspect fuel valves fuel valves are inspected to ensure complete closure
G-20.01.18P use computers to communicate with control systems and components to verify and adjust operation control systems and components operation are verified and adjusted using computers

Range of Variables

Knowledge
Reference Code Learning Outcomes Learning Objectives
G-20.01.01L demonstrate knowledge of fuel systems, appliances and ancillary equipment, their components, characteristics, applications and operation identify types of fuel systems, appliances and ancillary equipment, and their components, and describe their characteristics and applications
describe operating principles of fuel systems, appliances and ancillary equipment,and their components
interpret information pertaining to fuel systems, appliances and ancillary equipment,and their componentsfound on drawings and specifications
G-20.01.02L demonstrate knowledge of concepts and fundamentals related to fuel describe concepts and fundamentals related to fuel
G-20.01.03L demonstrate knowledge of concepts and fundamentals related to electricity describe concepts and fundamentals related to electricity
G-20.01.04L demonstrate knowledge of concepts and fundamentals related to combustion describe concepts and fundamentals related to combustion
G-20.01.05L demonstrate knowledge of procedures to inspect system components and operation identify hazards and describe safe work practices to inspect system components and operation
identify tools and equipment used to inspect system components and operation, and describe their procedures for use
describe procedures to inspect system components and operation
describe sequence of operation to assist with inspection of systems
G-20.01.06L demonstrate knowledge of regulatory requirements pertaining to inspection of system components and operation identify AHJ, codes, standards and regulations pertaining to inspection of system components and operation

Range of Variables

G-20.02 - Performs maintenance activities

G-20.02 - Performs maintenance activities
NL NS PE NB QC ON MB SK AB BC NT YT NU
NV yes NV yes yes ND yes ND yes yes NV NV NV
Skills
Reference Code Performance Criteria Evidence of Attainment
G-20.02.01P select and use tools and equipment tools and equipment are selected and used according to task
G-20.02.02P replace components components are replaced according to maintenance schedule
G-20.02.03P clean components components are cleaned according to manufacturers’ specifications
G-20.02.04P lubricate components components are lubricated according to manufacturers’ specifications to ensure smooth operation of system
G-20.02.05P remove components components are removed using hoisting equipment
G-20.02.06P adjust burner burner is adjusted to safe and functional operation and manufacturers’ and AHJ requirements
G-20.02.07P document repairs required for predictive component replacement repairs required for predictive component replacement are documented according to maintenance schedule

Range of Variables

Knowledge
Reference Code Learning Outcomes Learning Objectives
G-20.02.01L demonstrate knowledge of fuel systems, appliances and ancillary equipment, their components, characteristics, applications and operation identify types of fuel systems, appliances and ancillary equipment, and their components, and describe their characteristics and applications
describe operating principles of fuel systems, appliances and ancillary equipment,and their components
interpret information pertaining to fuel systems, appliances and ancillary equipment, and their components found on drawings and specifications
G-20.02.02L demonstrate knowledge of procedures to maintain fuel systems, appliances and ancillary equipment, and their components identify hazards and describe safe work practices to maintain fuel systems, appliances and ancillary equipment, and their components
identify tools and equipment used to maintain fuel systems, appliances and ancillary equipment, and their components, and describe their procedures for use
describe procedures to maintain fuel systems, appliances and ancillary equipment, and their components
G-20.02.03L demonstrate knowledge of regulatory requirements pertaining to maintenance of fuel systems, appliances and ancillary equipment, and their components identify codes, standards and regulations pertaining to maintenance of fuel systems, appliances and ancillary equipment, and their components

Range of Variables

Task G-21 Repairs fuel systems, appliances and ancillary equipment

Task Descriptor

Gasfitters repair fuel systems, appliances and ancillary equipment by diagnosing problems and isolating problem areas. They replace faulty components to correct the issue. It is important to subsequently verify the operation of the repaired system and fully document the repair work.

G-21.01 - Diagnoses system components and operation

G-21.01 - Diagnoses system components and operation
NL NS PE NB QC ON MB SK AB BC NT YT NU
NV yes NV yes yes ND yes ND yes yes NV NV NV
Skills
Reference Code Performance Criteria Evidence of Attainment
G-21.01.01P select and use tools and equipment tools and equipment are selected and used according to task
G-21.01.02P verify equipment performance equipment performance is verified to identify faults or erratic operation
G-21.01.03P apply trade knowledge to isolate problems trade knowledge is applied to isolate problems
G-21.01.04P check operation of electrical components operation of electrical components is checked to manufacturers’ specifications
G-21.01.05P check fuel pressures fuel pressures are checked to ensure switches meet operational parameters
G-21.01.06P inspect burner performance burner performance is inspected using combustion data
G-21.01.07P set up diagnostic monitoring devices diagnostic monitoring devices are set up to record and identify operating conditions and interpret fault codes

Range of Variables

Knowledge
Reference Code Learning Outcomes Learning Objectives
G-21.01.01L demonstrate knowledge of fuel systems, appliances and ancillary equipment, their components, characteristics, applications and operation identify types of fuel systems, appliances and ancillary equipment, and their components, and describe their characteristics and applications
describe operating principles of fuel systems, appliances and ancillary equipment,and their components
interpret information pertaining to fuel systems, appliances and ancillary equipment, and their componentsfound on drawings and specifications
G-21.01.02L demonstrate knowledge of concepts and fundamentals related to fuel describe concepts and fundamentals related to fuel
G-21.01.03L demonstrate knowledge of concepts and fundamentals related to electricity describe concepts and fundamentals related to electricity
G-21.01.04L demonstrate knowledge of concepts and fundamentals related to combustion describe concepts and fundamentals related to combustion
G-21.01.05L demonstrate knowledge of procedures to diagnose fuel systems, appliances and ancillary equipment, and their components identify hazards and describe safe work practices to diagnose fuel systems, appliances and ancillary equipment, and their components
identify tools and equipment used to diagnose fuel systems, appliances and ancillary equipment,and their components, and describe their procedures for use
describe procedures to diagnose fuel systems, appliances and ancillary equipment, and their components
G-21.01.06L demonstrate knowledge of manufacturers’ training to diagnose fuel systems, appliances and ancillary equipment,and their components identify manufacturers’ training to diagnose fuel systems, appliances and ancillary equipment,and their components
G-21.01.07L demonstrate knowledge of regulatory requirements to diagnose fuel systems, appliances and ancillary equipment, and their components identify codes, standards and regulations to diagnose fuel systems, appliances and ancillary equipment,and their components
    identify documentation

Range of Variables

G-21.02 - Replaces components

G-21.02 - Replaces components
NL NS PE NB QC ON MB SK AB BC NT YT NU
NV yes NV yes yes ND yes ND yes yes NV NV NV
Skills
Reference Code Performance Criteria Evidence of Attainment
G-21.02.01P identify appliance and equipment appliance and equipment are identified by make, model number, serial number and manufacturers’ code
G-21.02.02P source out parts, availability of equipment and compatibility of replacement parts parts, availability of equipment and compatibility of replacement parts are sourced out
G-21.02.03P verify replacement parts are all included and operate replacement parts are verified that they are all included and operate according to specifications
G-21.02.04P select and use tools and equipment tools and equipment are selected and used according to task
G-21.02.05P perform lock-out and tag-out procedures on system to isolate energy sources system is locked out and tagged out to isolate energy sources
G-21.02.06P remove and reassemble components to access repair area components are removed and reassembled to access repair area
G-21.02.07P disconnect and reconnect wiring and linkages wiring and linkages are disconnected and reconnected
G-21.02.08P record configuration of components configuration of components is recorded to facilitate reassembly
G-21.02.09P remove defective components and install replacement components defective components are removed, and replacement components are installed
G-21.02.10P dispose of and recycle defective components defective components are disposed of and recycled according to AHJ

Range of Variables

Knowledge
Reference Code Learning Outcomes Learning Objectives
G-21.02.01L demonstrate knowledge of fuel systems, appliances and ancillary equipment, their components, characteristics, applications and operation identify types of fuel systems, appliances and ancillary equipment, and their components, and describe their characteristics and applications
describe operating principles of fuel systems, appliances and ancillary equipment,and their components
interpret information pertaining to fuel systems, appliances and ancillary equipment,and their componentsfound on drawings and specifications
G-21.02.02L demonstrate knowledge of procedures to replace components identify hazards and describe safe work practices to replace components
identify tools and equipment used to replace components, and describe their procedures for use
describe procedures to replace components
G-21.02.03L demonstrate knowledge of regulatory requirements pertaining to replacement of components identify codes, standards and regulations pertaining to replacement of components

Range of Variables

G-21.03 - Verifies operation

G-21.03 - Verifies operation
NL NS PE NB QC ON MB SK AB BC NT YT NU
NV yes NV yes yes ND yes ND yes yes NV NV NV
Skills
Reference Code Performance Criteria Evidence of Attainment
G-21.03.01P select and use tools and equipment tools and equipment are selected and used according to task
G-21.03.02P remove lock-out and tag-out and restore energy sources lock-out and tag-out are removed and energy sources are restored
G-21.03.03P check operation of system system is checked that it operates according to manufacturers’ specifications, codes, standards and regulations
G-21.03.04P perform tests tests are performed to verify operation
G-21.03.05P verify electrical components electrical components are verified they have correct rotation and are at rated operating parameters
G-21.03.06P verify mechanical components mechanical components are verified they are operational
G-21.03.07P check lighting and operation of burner burner is checked to ensure safe lighting and operation
G-21.03.08P operate system through several cycles and monitor performance throughout system is operated through several cycles and performance is monitored throughout
G-21.03.09P complete documentation documentation is completed according to company policies, manufacturers’ requirements, codes, standards and regulations

Range of Variables

Knowledge
Reference Code Learning Outcomes Learning Objectives
G-21.03.01L demonstrate knowledge of fuel systems, appliances and ancillary equipment, their components, characteristics, applications and operation identify types of fuel systems, appliances and ancillary equipment, and their components, and describe their characteristics and applications
describe operating principles of fuel systems, appliances and ancillary equipment,and their components
interpret information pertaining to fuel systems, appliances and ancillary equipment,and their componentsfound on drawings and specifications
G-21.03.02L demonstrate knowledge of procedures to verify operation of fuel systems, appliances and ancillary equipment, and their components identify hazards and describe safe work practices to verify operation of fuel systems, appliances and ancillary equipment,and their components
identify tools and equipment used to verify operation of fuel systems, appliances and ancillary equipment,and their components, and describe their procedures for use
describe procedures to verify operation of fuel systems, appliances and ancillary equipment, and their components
G-21.03.03L demonstrate knowledge of regulatory requirements to verify operation of fuel systems, appliances and ancillary equipment, and their components identify codes, standards and regulations to verify operation of fuel systems, appliances and ancillary equipment, and their components

Range of Variables

Task G-22 Decommissions fuel systems, appliances and ancillary equipment

Task Descriptor

Gasfitters decommission fuel systems, appliances and ancillary equipment for upgrading, retrofitting or demolition. Safety and isolation of energy sources are very important.

G-22.01 - Disconnects appliances and ancillary equipment

G-22.01 - Disconnects appliances and ancillary equipment
NL NS PE NB QC ON MB SK AB BC NT YT NU
NV yes NV yes yes ND yes ND yes yes NV NV NV
Skills
Reference Code Performance Criteria Evidence of Attainment
G-22.01.01P select and use tools and equipment tools and equipment are selected and used according to task
G-22.01.02P perform lock-out and tag-out procedures for energy sources lock-out and tag-out procedures are performed for energy sources
G-22.01.03P isolate and terminate energy sources energy sources are isolated and terminated according to site requirements, AHJ, codes, standards and regulations
G-22.01.04P rig and hoist heavy equipment and components heavy equipment and components are rigged and hoisted for removal
G-22.01.05P disconnect and terminate control wires and tubing control wires and tubing are disconnected and terminated
G-22.01.06P isolate, purge and cap gas supply gas supply is isolated, purged and capped according to codes, standards and regulations
G-22.01.07P disconnect and cap venting system venting system is disconnected and capped
G-22.01.08P disconnect and cap distribution system distribution system is disconnected and capped
G-22.01.09P isolate accessories from system and remove energy sources accessories are isolated from system and energy sources are removed to disable function
G-22.01.10P disconnect accessories from appliance accessories are disconnected from appliance
G-22.01.11P check for leaks systems are checked for leaks to ensure they are safe according to safe work practices, codes, standards and regulations

Range of Variables

Knowledge
Reference Code Learning Outcomes Learning Objectives
G-22.01.01L demonstrate knowledge of procedures to disconnect appliances and ancillary equipment identify hazards and describe safe work practices to disconnect appliances and ancillary equipment
identify tools and equipment used to disconnect appliances and ancillary equipment, and describe their procedures for use
describe procedures to disconnect appliances and ancillary equipment
describe building systems and impact of decommissioning fuel systems
G-22.01.02L demonstrate knowledge of training and certification requirements to disconnect appliances and ancillary equipment identify training and certification requirements to disconnect appliances and ancillary equipment
G-22.01.03L demonstrate knowledge of regulatory requirements to disconnect appliances and ancillary equipment identify codes, standards and regulations to disconnect appliances and ancillary equipment

Range of Variables

G-22.02 - Removes appliances and ancillary equipment

G-22.02 - Removes appliances and ancillary equipment
NL NS PE NB QC ON MB SK AB BC NT YT NU
NV yes NV yes yes ND yes ND yes yes NV NV NV
Skills
Reference Code Performance Criteria Evidence of Attainment
G-22.02.01P select and use tools and equipment tools and equipment are selected and used according to task
G-22.02.02P rig and hoist heavy appliances, ancillary equipment and components heavy appliances, ancillary equipment and components are rigged and hoisted for removal
G-22.02.03P coordinate with personnel to move appliances and ancillary equipment personnel to move appliances and ancillary equipment is coordinated
G-22.02.04P remove appliances, accessories and ancillary equipment as required appliances, accessories and ancillary equipment are removed as required
G-22.02.05P store appliances and ancillary equipment appliances and ancillary equipment are stored according to site requirements
G-22.02.06P dispose of and recycle appliances, accessories and ancillary equipment appliances, accessories and ancillary equipment are disposed of and recycled according to environmental acts, jurisdictional regulations and best practices

Range of Variables

Knowledge
Reference Code Learning Outcomes Learning Objectives
G-22.02.01L demonstrate knowledge of procedures to remove appliances, ancillary equipment and their components identify hazards and describe safe work practices to remove appliances, ancillary equipment and their components
identify tools and equipment used to remove appliances, ancillary equipment and their components, and describe their procedures for use
describe procedures to remove appliances, ancillary equipment and their components
G-22.02.02L demonstrate knowledge of training and certification requirements to remove appliances, ancillary equipment and their components identify training and certification requirements to remove appliances, ancillary equipment and their components
G-22.02.03L demonstrate knowledge of regulatory requirements pertaining to removal and disposal of appliances, ancillary equipment and their components identify codes, standards and regulations pertaining to removal and disposal of appliances, ancillary equipment and their components

Range of Variables