The City & Guilds Level 2 Award in F-Gas and ODS Regulations (often referred to as 2079) is a formal qualification designed to ensure that personnel working on stationary refrigeration, air conditioning, and heat pump systems are fully compliant with environmental regulations.
This certification is suitable for experienced technicians looking to formalize their skills, as well as new entrants to the industry who want a recognized qualification. Holding this award confirms that you possess the necessary knowledge and practical skills to perform tasks such as installing, servicing, maintaining, recovering, and leak checking equipment safely and efficiently, minimizing the impact of F-gases on global warming.
Depending on the specific category you choose (e.g., Category I for all systems, or Category II for systems with less than 3kg charge), this award serves as your essential "licence to practise" within the UK and many other jurisdictions.
The course and associated exam cover a combination of theoretical knowledge and practical application, structured around fundamental industry skills and environmental legislation.
The core areas you need to master include:
Environmental Impact: Understanding ozone depletion and the greenhouse effect, the Kyoto and Montreal Protocols, and the properties of different F-gases and their Global Warming Potentials (GWPs).
Regulations and Legislation: In-depth knowledge of current UK and European F-Gas regulations, including the specific duties regarding leak checking, gas recovery, and record keeping.
Thermodynamics: Basic principles of the refrigeration cycle, pressure-temperature relationships, SI units, and the functions of key components like the compressor, condenser, evaporator, and expansion device.
System Integrity and Safe Handling: Safe handling techniques for refrigerants and oils, leak detection methods (direct and indirect), fabrication of permanent joints (usually brazing), pressure leak testing, evacuation, charging, and the safe recovery of gases for disposal or recycling.
Documentation: How to maintain accurate equipment logs and compliance records.
To achieve the City & Guilds Level 2 Award, you must pass two mandatory assessments: a multiple-choice online exam and a practical assessment.
The specific details (based on standard Category I or II pathways) are as follows:
Theoretical Assessment (Online Exam):
Format: Multiple-choice questions. This is typically taken on a computer-based system (such as GOLA).
Time Limit: Approximately 60 to 80 minutes.
Passing Score: The passing score is determined by City & Guilds but is generally in the range of 70-80% for theoretical knowledge.
Rules: This is a closed-book exam taken under strict invigilation.
Practical Assessment:
Format: Hands-on assessment observed and marked by a City & Guilds approved assessor.
Duration: This is a comprehensive session that can last from 2 to 5 hours, depending on the training center and the specific tasks required for your chosen category.
Tasks: You will be required to demonstrate proficiency in a variety of real-world scenarios, which commonly include:
Fabricating a professional joint (e.g., brazing copper tubing).
Pressure leak testing a system with oxygen-free nitrogen (OFN).
Evacuating a system to a micron level.
Correctly charging refrigerant into a system.
Demonstrating the correct procedure for the recovery of refrigerant.
Using appropriate leak detection tools (electronic and/or bubble solution).
Accurately completing all required record-keeping paperwork.
Passing Score: A pass/fail grade is given, and you must satisfy the assessor on all marked criteria.
Passing this exam requires a balanced approach of focused theory revision and hands-on practice.
Effective Study Strategies:
Utilize Official Materials: Focus your studying on the official City & Guilds qualification handbook and any manuals provided by your training provider.
Take Online Practice Exams: The single most effective way to prepare for the multiple-choice section is to take as many simulated F-Gas practice exams as possible. Look for dynamic tools that provide immediate feedback and explain the correct answers to deepen your understanding.
Practice with Real Equipment: If you work in the industry, ensure you are practicing correct brazing, leak testing, and recovery procedures under the supervision of a qualified colleague. If you are a student, maximize your workshop time.
Focus on Regulations: Do not overlook the legal aspects. You must memorize the core legal duties for leak checking intervals, record keeping, and labeling. A large section of the theory exam is dedicated to these regulations.
Understand P-T Charts: Learn how to interpret pressure-temperature charts for common refrigerants, as this is crucial for the thermodynamics questions.
Exam Centers:
You cannot take the City & Guilds Level 2 F-Gas exam at a standard Pearson VUE center. You must register for and take the assessments at a City & Guilds approved training center or authorized school.
These centers provide the necessary specialized facilities and equipment for the practical assessment, alongside the invigilated computers for the online theory test. Training providers usually include the final assessments as part of a 2, 3, or 5-day training course, depending on your experience level. Search for a reputable, authorized training provider in your region to book your combined training and examination package.
A City & Guilds F-Gas Level 2 Award opens a wide range of career opportunities across the Building Services Engineering sector. It is a fundamental requirement for anyone whose role involves working on equipment that contains F-Gases.
Key job opportunities unlocked by this qualification include:
Refrigeration Engineer
Air Conditioning Technician (covering residential, commercial, and industrial systems)
Heat Pump Installer
Field Service Technician (HVAC)
Maintenance Engineer (for refrigeration/AC in building services)
Marine Refrigeration Engineer
Building Services Manager
Self-Employed HVAC Specialist
Image Description:
A professional educational photograph taken from a close perspective in a brightly lit technical workshop. A focused student, wearing safety glasses and subtle blue work gloves, is holding a tablet that clearly displays a multiple-choice practice question for the 'City & Guilds Level 2 F-Gas Practice Exam'. Their other hand rests on the colorful gauges of a manifold attached to a stationary refrigeration training unit. In the blurred background, framed City & Guilds certificates are subtly visible on a distant wall.
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