Gas, Oil, Plumbing, Electrical, Renewable Energy, Solid Fuel. Training and Assessment Centre End Point Assessment Centre
 Gas, Oil, Plumbing, Electrical,Renewable Energy, Solid Fuel.Training and Assessment CentreEnd Point Assessment Centre 

CDGA1 - Installation of Commercial Direct Fired Appliances

Assessment Information

The course is for experienced people who wish to undertake commission, service, repair and breakdown of commercicial direct fired gas appliances. CDA1 is normally undertaken as part of either the Commercial Changeover Gas Safety Package  or the Core Commerical Gas Safety Package.



  • Candidates must hold either the COCN1 qualification or CODNCO1 qualification.


Course Content

  • Legislation
  • Unsafe situations
  • Combustion
  • Gas controls
  • Gas pressures and flow
  • Flues
  • Ventilation
  • Installation of commercial heating gas appliances
  • Commissioning commercial heating gas appliances
  • Servicing commercial heating gas appliances


Course Duration

  • 1 day

This course can be training and assessment or assessment only.


  • You will need to bring with you

  • Candidate name and address
  • Candidate National Insurance number
  • 2 passport sized photographs
  • Copies of relevant qualifications and/or evidence of gas work experience
  • A declaration of the category for the individual making the application
  • First-time applicants will also be required to provide an acceptable  form of photographic identification e.g. a passport or driving licence
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