A2/A2L Approved Filler Theory Course

Kia ora and welcome to the Approved Filler course A2/A2L. See our video on the new Approved Filler Courses, https://youtu.be/DP5Ld2V0MpA

Renew your RLNZ license by learning current information for A1 and A2/A2L refrigerants and passing a practical assessment using current materials and fit for purpose technology. 

Candidates are required to have completed and passed an A1 theory course PRIOR to starting an A2/A2L theory course.

A2/A2L refrigerants are: R1234yf, R1234ze, R454C, R455A, R454A, R454B, R447A, R32, R452B.

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Workers require specific knowledge and proven practical competency to reduce the inherent risk when working with A2/A2L refrigerants. This course aims to provide workers and PCBU with the necessary information and instruction to safely fill cylinders with Compressed Low and High-pressure Refrigerant Gases (ASHRAE class A1), Transport Class 2.2.

The course addresses the knowledge-based outcomes of NZQA unit standard 28950* - Meet requirements for Approved Filler Test Certificate for refrigerants:

• Identify legislation and regulations relating to the activities of Approved Fillers.
• Demonstrate knowledge of compressed gases used as refrigerants.
• Demonstrate knowledge of cylinders and valves used for refrigerants.
• Demonstrate knowledge of refrigerant recovery procedures.
• Safety Data Sheet (SDS) for A2/A2L refrigerants.

*On completing this course, workers will have reached the A2/A2L practical assessment pre-requisite.

You must perform recovery procedures (filling) in the presence of an RLNZ verifier or Compliance Certifier to be awarded an Approved filler compliance certificate.

SPECIAL NOTE:

The A2/A2L course does not apply to ASHRAE classes A2/A2L and A3; Flammable Gas Category 1a, 1b, Toxic or Very High-pressure refrigerants (a refrigerant with a critical temperature below 40°C or with a liquid phase saturation pressure above 2447.64kPa at 40°C). These refrigerants will be covered in separate modules.

To be successful in this course, it is recommended that participants are refrigeration workers with existing NZQA technical competencies or have access to expert instruction.

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PREPARING FOR THE PRACTICAL ASSESSMENT

You are required to demonstrate knowledge, skills and experience of the refrigerant recovery procedures presented to you on the day of the practical assessment. This will include the following:

1. Completing pre-recovery risk assessment.
2. Completing a successful A2/A2L recovery, ready for safe line and equipment opening within the time allowed.
3. Completing post-filling tasks to industry best practice.
4. Applying safe work practices throughout assessment.

Special note:

1. No formula are provided – you are expected to completely understand the calculation methods.
2. Learners are responsible to provide all equipment (see below table). All equipment must meet NZ legal obligations i.e. must be tested and tagged.

 

Time allowed	60 minutes maximum
Minimum PPE	Overalls or full-length non static clothing, Hi-Viz, protective eyewear, protective footwear, hearing protection and gloves.
Materials and equipment	Gauge manifold and hoses, thermometer, P/T chart or application, recovery plant, refrigerant scales, recovery cylinder, LOTO resources, Big-blue. Access to an appropriate fire extinguisher.
Health and Safety	Health & Safety requirements are paramount prior to commencing the practical assessment, you must follow instructions given by the assessor during the practical demonstration.
Number of attempts	You will receive only one attempt for this assessment. Should your attempt be not satisfactory, the verifier/assessor will discuss the deficiencies with you. You will have to schedule and pay for a second attempt through the verifier.   Should your second attempt be unsuccessful, or you have made critical failures, you will be required to re-enrol in the theory A2/A2L course module.
Assessment Criteria	The verifier/assessor will be observing your ability to demonstrate the key skills and knowledge detailed in the observation checklist that is based on the RLNZ Safe Work Procedure and the knowledge gained in the online course module.
Critical point failure	The assessment includes “critical” failures which indicate that you are NOT yet competent for practical assessment. Your verifier or assessor will discuss these with you during the assessment if they arise. In this case you will be asked to cease the assessment.

 

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WORKSAFE CERTIFICATION

Once the Practical Assessment is completed, the Verifier will send your paperwork through to Worksafe for Certification. RLNZ does not produce cards, but you will be sent a certificate as a PDF document you can print out or keep on your phone. If after two weeks you have not received your Worksafe Certification, please check your spam folders and contact RLNZ.

You must pass an A1 Online Theory Course prior to registering for an A2/A2L Online Theory Course.