Projects for training in developed and developing ...area-eur.be/sites/default/files/2016-07/AREA...
Transcript of Projects for training in developed and developing ...area-eur.be/sites/default/files/2016-07/AREA...
Marco BuoniVicePresident, AREA
Air Conditioning & Refrigeration European contractors’ Association
(www.area-eur.be)
Secretary General Italian Association of Refrigeration Technician, ATF (www.associazioneATF.org)
Projects for training in developed and developing
countries on alternative technologies;
AREA perspectives and guidelines
Paris, 12 April 2016
AREAThe indisputable voice of European RACHP contractors
Design, installation, maintenance and repair of all Refrigeration,
Air Conditioning and Heat Pumps RACHP systems
AREA Vision & Strategy 2020
Constant technological evolutions and recent regulatory changes are
reshaping the refrigeration, air conditioning and heat pump (RACHP)
sector. For contractors, the challenge is to embrace these developments
whilst maintaining excellence. In its Vision & Strategy 2020, AREA
identifies 6 key areas for a striving RACHP contracting sector.
1. Standards and regulations that support our sector’s development;
2. Minimum requirements for education and certification on low GWP
refrigerants to ensure safe and competent handling;
3. Energy efficiency as a key driver in refrigerant and system choice;
4. Guidance on technological developments to ensure up-to-date
knowledge;
5. Exchange of information and best practices within the sector through
the AREA network;
6. European and international cooperation at both industrial and
institutional levels.
AREA projects
• RSS Training material and guidelines for EU
members available to developing countries
• Missions to share EU experience in training and
certification
• Information exchange between AREA members
associations and developing countries
institutions and associations
• EU, UN agencies projects (GRMI, RDL, support in
trainings in Africa, Asia..)
• International Observer status
AREA guidelines (1)
• Low GWP Refrigerants
Guidance on minimum requirements
for contractors in RSS
Training & Certification
Used by several EU member
states for implementing
national legislations and
recommendations
Example: training for
HydrocarbonsCourse details•Thermodynamic characteristic of Hydrocarbons as refrigerant - p/h diagram•Specific components for Hydrocarbons•Electronic components suitable for flammable refrigerants•Refrigeration and Air conditioning applications with HC•Recovery or Venting Hydrocarbons•Vacuum-Charging procedures•Leak testing•Mechanical/compression joint connections – avoid brazing•Flammability and safety issues, first aid•Conversion HCFC – HFC systems into HC•National and European regulations and standards•Transport and storage requirements•Logbook
Necessary equipment and components (minimum)•Test Rig equipped with Pressure Gauges, sight glasses in key points, service valves for connections, temperature well - thermowell (Domestic/Commercialrefrigerator or small packaged portable air conditioning unit)•Mechanical/compression joint tool and connectors•Nitrogen Regulator - Cylinder of High Purity Nitrogen•Electronic Weighing Platform•Hydrocarbon Cylinder•Electronic or analogue Vacuum gauge•Manifold set - Hoses with ball valves•Vacuum Pumps and Hose•Electronic Leak Detector (suit HC)•Proprietary Leak Spray•Temperature meter•Ammeter•Tools, Pipe Cutters, Pipe Deburring Tool, Pipework Expanders, Hacksaws, Brazing Rods•Flaring Tool•Personal protective equipment
The Refrigeration, Air Conditioning and Heat Pumps systems
containing refrigerants should have:
- Logbook
- Periodical inspections
- Installation, repair only by certified craftsmen/technicians
In Pills: To prevent refrigerant
emissions and safety
Training and certification
Refrigerant
only to certified technicians
AREA guidelines (2)
• Equipment for refrigerants
with lower (A2L) and
higher (A3) flammability
Example of Figure from the guideline: Possible sources for leakage and
safety equipment used when filling flammable refrigerant
AREA guidelines (3)
AREA members are Service Technicians associations;
RSS trainings, seminars are objectives of each AREA
member;
For this reason AREA members produce loads of quality
material for unbiased training on refrigerants
and RSS in 16 languages
Real Alternatives
• Projects of Translation in several
EU languages and exports to
South America (Spanish – Portuguese)
• Africa (French – English – Portuguese)
• Asia (Arabic and Russian, UN languages)
(1) Minimum Requirements listed for the
Specific module HC – NH3 – CO2 – HFO*
HC NH3 CO2
BASIC THERMODYNAMICS AND PHYSICS
Thermodynamic properties of Low GWP refrigerant: temperature,
pressure, density, thermal capacity, p/h diagramT T T
Differences between Low GWP refrigerants and HFCs T T T
Toxicity characteristics, grades and limits for the human body --------------- T T
Characteristic of Flammability of the substances, velocity of
propagation, LFL, UFL, occupancyT T ---------------
Specific components for that refrigerant in the refrigeration cycle T T T
Material compatibility --------------- T T
Oil compatibility, requirements and oil return T T T
*HFO1234yf: same, minimum requirements as Hydrocarbons HC
*HFO1234ze: same minimum requirements as HFCs
AREA Guideline
Used by several EU Member States
for training and certification
HC NH3 CO2
GOOD PRACTICE
Identify typical application of Low GWP refrigerants RAC
systems2 (refer to AREA: Low GWP Refrigerants Guidance)P P P
State and identify the commonly used refrigerants designation P P P
State the requirements for safely labeling Low GWP refrigerant
RAC systems6P P P
Select appropriate tools, equipment and PPE for work on Low
GWP RAC systems6P P P
Recovery of the refrigerant P P P
Venting the refrigerant in a safe way (according to national
legislation)P P P
Calculate the safe fill weight for the recovery cylinder (density
difference between HFCs and Low GWP refrigerants) 2P P P
Leak check direct assessment with the correct equipment P P P
Make vacuum of the refrigerant preventing moisture in the
system and without refrigerant emissionsP P P
Make charge of the refrigerant with no emission relief P P P
Make a connection without brazing with alternative connections P P P
Check the correct functioning of the safety ventilation system P P
Check the correct functioning of the safety system controls P P P
[1] All practical trainings should include theoretical training[2] City and Guilds, Level 2 and Level 3 Refrigeration and Air Conditioning CPD Pathways, March 2012 v1.0[3] It is normally accepted to vent hydrocarbons with low charges (please refer to national legislation)[4] It is normally accepted to vent CO2 (please refer to national legislation)
(2) Minimum Requirements listed for the
Specific module HC – NH3 – CO2 – HFO*
HC NH3 CO2
HEALTH AND SAFETY REQUIREMENTS
Safe system shutdown and isolation 2 P P P
Extinguish a fire, identify the appropriate fire extinguisher P P ---------------
First aid care treatment for frostbite P P P
First aid due to fire burn P P ---------------
First aid suffocation due to breathing problems --------------- P P
Safety issues related to high pressures --------------- --------------- P
Calculate LFL (confined space) T T ---------------
Calculate confined space for asphyxiation (heavier than air) T --------------- T
Check that Health and Safety rules in the refrigeration system
location are respected (emergency exits, fire alarms, leak
detectors…)
T T T
Correct use of Personal Protective Equipment P P P
(3) Minimum Requirements listed for the
Specific module HC – NH3 – CO2 – HFO*
HC NH3 CO2
REGULATIONS AND STANDARDS
Knowledge of European and National Regulations and
standards T T T
Storage of the refrigerant T T T
Transport of the refrigerant T T T
Describe the process for handing over system to costumer
completing and passing on appropriate commissioning
documentation2
P P P
(4) Minimum Requirements listed for the
Specific module HC – NH3 – CO2 – HFO*
AREA and UNEP have developed a
Guide on Certification
Certification
is the best practical method to
verify the competence of personnel
handling refrigerants and to ensure
the correct installation,
maintenance, repair and
dismantling of a refrigeration,
airconditioning and heat pump
systems.
THANK YOU!
Email: [email protected]
Marco BuoniVicePresident, AREA
Air Conditioning & Refrigeration European contractors’ Association
(www.area-eur.be)
Secretary General Italian Association of Refrigeration Technician, ATF (www.associazioneATF.org)