Bryn Lane, Wrexham. LL13 9UT
Bryn Lane, Wrexham. LL13 9UT
This commercial gas ACS course provides full initial or renewal certification for working on commercial natural gas systems, including pipework, radiant tube heaters, and indirect-fired appliances. Includes COCN1, CORT1, CIGA1, and ICPN1.
The Commercial Gas Core Package at Vulcana Training is the complete ACS route for engineers working on commercial natural gas installations. It includes four core commercial modules: COCN1 (core gas safety), CORT1 (overhead radiant tube heaters), CIGA1 (indirect-fired appliances), and ICPN1 (installation of commercial pipework).
Important Note:
COCN1 is a standalone core qualification. Unlike the CODNCO changeover route, COCN1 does not depend on a current CCN1 certificate. Once achieved, it remains valid independently of any domestic qualifications.
This course includes refresher training followed by written and practical assessments for all included modules. Testing and purging (TPCP1/TPCP1A) is not included and must be booked separately.
COCN1 – Core Commercial Gas Safety
Commercial gas safety principles, including:
Legislation, emergency procedures, unsafe situations
Pipework installation, tightness testing, flueing and ventilation
Combustion analysis and fault diagnosis
CORT1 – Overhead Radiant Tube Heaters
Installation and servicing of radiant tube heating systems commonly found in warehouses and large open commercial spaces.
CIGA1 – Indirect-Fired Appliances
Covers indirect-fired commercial air heating units, including commissioning, servicing and fault finding.
ICPN1 – First Fix Commercial Pipework (up to 150mm)
Installation of steel and copper pipework in commercial environments, including sizing, routing and testing prior to appliance connection.
TPCP1 and/or TPCP1A – Testing and purging (booked separately)
Additional commercial modules (e.g. CDGA1, CCLP1) can be added as needed
This route is for engineers who:
Are undertaking their first commercial assessment, or
Previously held COCN1 but it expired over 12 months ago
You must:
Hold a recognised gas qualification (e.g. CCN1 or completed a Commercial MLP)
Be registered with Gas Safe for at least 12 months (where applicable)
Provide evidence of qualifications and registration when booking
You may take the reassessment route if:
You currently hold COCN1, or
It expired within the last 12 months
If it has been more than 12 months since expiry, the initial assessment route applies.
All our courses include refresher training and are delivered in a supportive setting to help you feel confident and well-prepared for assessment.
Yes, training manuals and certificates are included in the course fees, except for OFTEC reassessment course training material, where are charged separately.
Any required study materials will be provided on the first day of your course. However, if you prefer to collect them in advance, you can do so by making prior arrangements with us.
With a 99.9% pass rate, it’s unlikely—but if you don’t pass, we’ll discuss your options, including reassessment and additional training if needed.
Yes, we offer refresher training to help candidates prepare for reassessments. Contact us to discuss available options.
We offer various payment options, including installment plans for selected courses. Please contact us to discuss available payment plans.
You can book online using the “Book Now” button on our website, email us at office@vulcana.co.uk, or call 01978 660300. If you don’t see the course you need on our booking system, please contact us, as we may still be running it.
You will need to bring:
Our training centre is located at:
Bryn Lane, Wrexham Industrial Estate, LL13 9UT
We are opposite the petrol station.
Certificates are sent directly to your home address once they have been processed by the awarding body. Processing times can vary, so please allow some time for delivery.
For full details on cancellations and refunds, please refer to our cancellation policy or contact us directly.
