Commission Regulation (EC) No 303/2008 of 2 April 2008 establishing, pursuant to Regulation (EC) No 842/2006 of the European Parliament and of the Council, minimum requirements and the conditions for mutual recognition for the certification of companies and personnel as regards stationary refrigeration, air conditioning and heat pump equipment containing certain fluorinated greenhouse gases (Text with EEA relevance)
Date: 2008-04-02
Institutions: European Commission
Subjects: Community certification, air conditioning, cold store, electrical engineering, greenhouse gas, professional qualifications, technical specification

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COMMISSION REGULATION (EC) No 303/2008

of 2 April 2008

establishing, pursuant to Regulation (EC) No 842/2006 of the European Parliament and of the
Council, minimum requirements and the conditions for mutual recognition for the certification
of companies and personnel as regards stationary refrigeration, air conditioning and heat pump
equipment containing certain fluorinated greenhouse gases

(Text with EEA relevance)

THE COMMISSION OF THE EUROPEAN COMMUNITIES,

Having regard to the Treaty
Community,

establishing the European

Having regard to Regulation (EC) No 842/2006 of the European
Parliament and of the Council of 17 May 2006 on certain
fluorinated greenhouse gases (1), and in particular Article 5(1)
thereof,

Whereas:

(1)

(2)

(3)

(4)

(5)

For the purposes of the requirements of Regulation (EC)
No 842/2006, it is necessary to lay down rules on the
qualification of personnel carrying out activities, at the
location of the operation of equipment containing certain
fluorinated greenhouse gases, which potentially affect
their leakage.

should be
Different categories of certified personnel
in order to ensure that personnel are
provided for,
qualified for the activities which they undertake while
avoiding disproportionate costs.

Personnel not yet certified but enrolled in a training
course for the purpose of obtaining a certificate should
be, for a limited time, allowed to undertake activities for
which such certification is required to gain the practical
skills needed for the examination, provided that they are
supervised by certified personnel.

Personnel qualified to undertake brazing, soldering or
welding should be allowed to undertake those specialised
activities in the context of one of the activities for which
certification is required, provided that they are supervised
by certified personnel.

Directive 2002/96/EC of the European Parliament and of
the Council of 27 January 2003 on waste electrical and
(WEEE) (2)
electronic
technical
requirements for companies undertaking treatment and
in treatment plants,
storage of waste

equipment

appliances

sets out

(1) OJ L 161, 14.6.2006, p. 1.
(2) OJ L 37, 13.2.2003, p. 24. Directive as amended by Directive

2003/108/EC (OJ L 345, 31.12.2003, p. 106).

inter alia, refrigeration, air conditioning and
including,
heat pump equipment. The level of qualification needed
for personnel recovering refrigerant
in such plants is
lower compared to that needed by personnel carrying
out on-site recovery, because of the types of automated
recovery equipment available in fridge decommissioning
treatment plants.

A number of Member States do not currently have quali-
fication or certification systems in place. A limited period
should therefore be allowed for personnel and companies
to obtain a certificate.

the purpose of

administrative
avoiding undue
For
burden,
it should be allowed to build a certification
system on existing qualification schemes provided that
the skills and knowledge covered and the relevant quali-
fication system are equivalent to the minimum standards
envisaged by this Regulation.

Examination is an effective means of testing the ability of
a candidate to carry out properly the actions which can
directly cause leakage, as well as those that can indirectly
cause leakage.

training

To enable
and certification of personnel
currently active in the areas covered by this Regulation
an
without
adequate interim period is required during which certifi-
cation should be based on existing qualification schemes
and professional experience.

their professional

interrupting

activity,

(6)

(7)

(8)

(9)

ensure

(10) Officially designated evaluation and certification bodies
should
the minimum
in this Regulation and thereby
requirements set out
contribute to the effective and efficient mutual recog-
nition of certificates throughout the Community.

compliance with

(11) Mutual recognition should not apply to interim certi-
ficates since the requirements for obtaining those certi-
ficates may
than existing
requirements in some Member States.

significantly

lower

be

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(12)

format

Information on the certification system issuing certi-
ficates subject to mutual recognition should be notified
to the Commission in the
established by
Commission Regulation (EC) No 308/2008 of 2 April
to Regulation (EC) No
2008 establishing, pursuant
842/2006 of
the
Council, the format for notification of the training and
certification programmes of the Member States (1). Infor-
mation on interim certification systems
should be
notified to the Commission.

the European Parliament and of

(13)

The measures provided for in this Regulation are in
accordance with the opinion of the Committee estab-
by Article 18(1) of Regulation (EC) No
lished
2037/2000 of
the
Council (2),

the European Parliament and of

HAS ADOPTED THIS REGULATION:

Article 1

Subject matter

This Regulation establishes minimum requirements for the certi-
fication referred to in Article 5(1) of Regulation (EC) No
842/2006 in relation to stationary refrigeration, air condi-
certain
tioning
fluorinated greenhouse gases as well as the conditions for
mutual recognition of certificates issued in accordance with
those requirements.

equipment

containing

pump

heat

and

Article 2

Scope

This Regulation shall apply to personnel carrying out the

1.
following activities:

(a)

leakage checking of applications containing 3 kg or more of
fluorinated greenhouse gases and of applications containing
6 kg or more of fluorinated greenhouse gases with herme-
tically sealed systems, which are labelled as such;

(b) recovery;

(c)

installation;

(d) maintenance or servicing.

It shall also apply to companies carrying out the following

2.
activities:

(a)

installation;

(b) maintenance or servicing.

(1) See page 28 of this Official Journal.
(2) OJ L 244, 29.9.2000, p. 1. Regulation as

last amended by
Commission Decision 2007/540/EC (OJ L 198, 31.7.2007, p. 35).

This Regulation shall not apply to any manufacturing and
for
conditioning or heat pump

3.
repairing
stationary
equipment containing fluorinated greenhouse gases.

activity undertaken at manufacturer's
refrigeration,

sites

air

Article 3

Definitions

For the purposes of this Regulation the following definitions
shall apply:

1.

2.

‘installation’ means joining two or more pieces of equipment
or circuits containing or designed to contain fluorinated
greenhouse gas refrigerant, with a view to assembling a
system in the location where it will be operated, including
the action by which refrigerant conductors of a system are
joined together to complete a refrigerant circuit irrespective
of the need to charge the system after assembly;

‘maintenance or servicing’ means all activities, excluding
recovery and checks for
leakage as defined in Articles
2(14) and 3(2) of Regulation (EC) No 842/2006 respectively,
that entail breaking into the circuits containing or designed
to contain fluorinated greenhouse gases,
in particular
supplying the system with fluorinated greenhouse gases,
removing one or more pieces of circuit or equipment, re-
assembling two or more pieces of circuit or equipment, as
well as repairing leakages.

Article 4

Certification of personnel

Personnel

carrying out

1.
referred to in
Article 2(1) shall hold a certificate as referred to in Article 5
or Article 6 for the corresponding category as set out
in
paragraph 2 of this Article.

the activities

attesting

Certificates

2.
holder
that
the
the activities
to undertake one or more of
requirements
referred to in Article 2(1) shall be granted for the following
categories of personnel:

fulfils

the

(a) Category I certificate holders may carry out all the activities

provided for in Article 2(1);

(b) Category II certificate holders may carry out the activities
provided for in point (a) of Article 2(1) provided that it does
not entail breaking into the refrigeration circuit containing
fluorinated greenhouse gases. Category II certificate holders
may carry out the activities in points (b),
(c) and (d) of
Article 2(1)
in relation to refrigeration, air conditioning
and heat pump equipment containing less than 3 kg, or,
if hermetically sealed systems which are labelled as such are
concerned, less than 6 kg of fluorinated greenhouse gases;

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(c) Category III certificate holders may carry out the activity
provided for in point (b) of Article 2(1) in relation to refrig-
conditioning and heat pump equipment
eration,
if hermetically sealed
containing less
than 3 kg, or,
less
systems which are labelled as such are concerned,
than 6 kg of fluorinated greenhouse gases;

air

(d) Category IV certificate holders may carry out the activity
provided for in point (a) of Article 2(1) provided that it
does not entail breaking into the refrigeration circuit
containing fluorinated greenhouse gases.

3.

Paragraph 1 shall not apply:

(a)

for a maximum period of two years, to personnel under-
taking one of the activities referred to in Article 2(1) and
enrolled in a training course for the purpose of obtaining a
certificate covering the relevant activity, provided that they
carry out the activity under the supervision of a person
holding a certificate covering this activity;

(b) to personnel undertaking brazing, soldering or welding of
parts of a system or piece of equipment in the context of
one of the activities referred to in Article 2(1), which hold
legislation to
the qualification required under national
undertake such activities, provided that they are supervised
by a person holding a certificate covering the relevant
activity;

(c)

covered by

to personnel undertaking recovery of fluorinated greenhouse
gases from equipment covered by Directive 2002/96/EC
with a fluorinated greenhouse charge of less than 3 kg, in
in accordance with
premises
a permit
Article 6(2) of
they are
employed by the company holding the permit and have
completed a training course on the minimum skills and
knowledge corresponding to Category III as set out in the
Annex to this Regulation verified by an attestation of
competence issued by the permit holder.

that Directive, provided that

4. Member States may decide that paragraph 1 shall not
apply for a period which shall not exceed the date referred to
in Article 5(4) of Regulation (EC) No 842/2006, to personnel
the activities provided for in
undertaking one or more of
Article 2(1) of this Regulation before the date referred to in
Article 5(2) of Regulation (EC) No 842/2006.

Such personnel shall,
for the period referred to in the first
subparagraph, be deemed certified as regards those activities
for the purposes of the requirements of Regulation (EC) No
842/2006.

Article 5

Personnel certificates

1.
A certification body as referred to in Article 10 shall issue
a certificate to personnel who have passed a theoretical and
practical examination organised by an evaluation body as
referred to in Article 11, covering the minimum skills and
knowledge set out in the Annex, for the category concerned.

2.

The certificate shall contain at least the following:

(a)

the name of the certification body, the full name of the
holder, a certificate number, and the date of expiry if any;

(b) the category of personnel certification as

specified in
Article 4(2) and the associated activities which the holder
of the certificate is entitled to perform;

(c)

issuing date and issuer's signature.

3. Where an existing examination-based certification system
covers the minimum skills and knowledge set out in the Annex
for a particular category and meets the requirements of Articles
10 and 11, but the related attestation does not contain the
elements laid down in paragraph 2 of this Article, a certification
body referred to in Article 10 may issue a certificate to the
holder of
the corresponding category
without repeating examination.

this qualification for

4. Where an existing examination based certification system
meets the requirements of Articles 10 and 11 and partially
covers the minimum skills of a particular category as set out
in the Annex, certification bodies may issue a certificate for the
corresponding category provided that the applicant passes a
supplementary examination of the skills and knowledge not
covered by the existing certification by an evaluation body
referred to in Article 11.

Article 6

Interim certificates for personnel

1. Member States may apply a system of interim certification
for personnel referred to in Article 2(1)
in accordance with
paragraphs 2 or 3, or paragraphs 2 and 3, of this Article.

The interim certificates referred to in paragraphs 2 and 3 shall
expire on 4 July 2011 at the latest.

2.
Personnel holding an attestation issued under existing
qualification schemes for activities referred to in Article 2(1)
shall be deemed holders of an interim certificate.

Member States shall
certificates
Article 4(2).

for

identify attestations qualifying as interim
the corresponding category referred to in

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Personnel with professional experience in the activities
3.
corresponding to the categories referred to in Article 4(2),
acquired before the date referred to in Article 5(2) of Regulation
(EC) No 842/2006, shall be issued with an interim certificate by
an entity designated by the Member State.

Article 9

Interim certificates for companies

1. Member States may apply an interim certification system
for companies referred to in Article 2(2) in accordance with
paragraphs 2 or 3, or paragraphs 2 and 3, of this Article.

The interim certificate shall indicate the category referred to in
Article 4(2) and the expiry date.

Article 7

Certification of companies

Companies referred to in Article 2(2) shall hold a certi-

1.
ficate as referred to in Article 8 or Article 9.

2. Member States may decide that paragraph 1 shall not
apply for a period which shall not exceed the date referred to
in Article 5(4) of Regulation (EC) No 842/2006, to companies
involved in one or more of
the activities provided for in
Article 2(2) of this Regulation before the date referred to in
Article 5(2) of Regulation (EC) No 842/2006.

Article 8

Company certificates

The interim certificates referred to in paragraphs 2 and 3 shall
expire on 4 July 2011 at the latest.

Companies certified under existing certification schemes
shall be deemed

referred to in Article 2(2)

2.
for activities
holders of an interim certificate.

Member States shall
identify attestations qualifying as interim
certificates for the activities referred to in Article 2(2) which the
holder is entitled to carry out.

3.
Companies employing personnel holding a certificate for
the activities for which certification is required for the purposes
of Article 2(2) shall be issued with an interim certificate by an
entity designated by the Member State.

A certification body as referred to in Article 10 shall issue
1.
a certificate to a company for one or more of the activities
referred to in Article 2(2) provided that it fulfils the following
requirements:

The interim certificate shall
holder is entitled to carry out and the expiry date.

indicate the activities which the

(a) employment of personnel certified in accordance with
Article 5,
in a
sufficient number to cover the expected volume of activities;

the activities requiring certification,

for

(b) proof that the necessary tools and procedures are available
to the personnel engaged in activities for which certification
is required.

Article 10

Certification body

1.
A certification body shall be provided for by a national
law or regulation, or designated by the competent authority of a
Member State or other entities entitled to do so, as being
allowed to issue
companies
involved in one or more of the activities referred to in Article 2.

to personnel or

certificates

2.

The certificate shall contain at least the following:

The certification body shall be independent and impartial
carrying out its activities.

in

(a)

the name of the certification body, the full name of the
holder, a certificate number, and the date of expiry if any;

The certification body shall establish and apply procedures

2.
for the issuance, suspending and withdrawing of certificates.

(b) the activities which the holder of the certificate is entitled to

perform;

(c)

issuing date and issuer's signature.

3.
The certification body shall maintain records that allow
verifying the status of a certified person or company. The
records shall demonstrate that
the certification process has
been effectively fulfilled. Records shall be kept for a minimum
period of five years.

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Article 11

Evaluation body

An evaluation body designated by

1.
competent
authority of a Member State or other entities entitled to do
so, shall organise examinations for the personnel referred to
in Article 2(1). A certification body as
referred to in
Article 10 may also qualify as an evaluation body.

the

The evaluation body shall be independent and impartial
carrying out its activities.

in

2.
Examinations shall be planned and structured in a manner
which ensures that the minimum skills and knowledge set out
in the Annex are covered.

By 4 January 2009, Member States

shall notify the
2.
Commission, where applicable, of designated entities entitled
to issue interim certificates and of enacted national provisions
according to which documents issued by existing certification
systems are deemed as interim certificates.

By 4 January 2009, Member States

3.
shall notify the
Commission of the names and contact details of certification
bodies for personnel and companies covered by Article 10 and
of the titles of certificates for personnel complying with the
requirements of Article 5 and companies complying with the
requirements of Article 8, using the format established by Regu-
lation (EC) No 308/2008.

4. Member States shall update the notification submitted
pursuant to paragraph 3, with relevant new information, and
submit it to the Commission without delay.

3.
The evaluation body shall adopt reporting procedures and
keep records to enable the documentation of the individual and
overall results of the evaluation.

Article 13

Conditions for mutual recognition

The evaluation body shall ensure that examiners assigned
4.
to a test have due knowledge of
the relevant examination
methods and examination documents as well as an appropriate
competence in the field to be examined. It shall also ensure that
the necessary equipment, tools and materials are available for
the practical tests.

1. Mutual recognition of certificates issued in other Member
States shall only apply to certificates issued in accordance with
Article 5 for personnel and Article 8 for companies.

2. Member States may require holders of certificates issued in
another Member State to provide a translation of the certificate
in another official Community language.

Article 12

Notification

Article 14

Entry into force

By 4 July 2008, Member States

1.
shall notify the
Commission of their intention to apply an interim certification
system according to Articles 6 or 9, or both.

This Regulation shall enter into force on the 20th day following
the European
that of
Union.

its publication in the Official

Journal of

This Regulation shall be binding in its entirety and directly applicable in all Member States.

Done at Brussels, 2 April 2008.

For the Commission

Stavros DIMAS
Member of the Commission

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ANNEX

Minimum requirements as to the skills and knowledge to be covered by the evaluation bodies

1. The examination for each of the Categories referred to in Article 4(2) shall comprise the following:

(a) a theoretical test with one or more questions testing that skill or knowledge, as indicated in the Category columns

by (T);

(b) a practical test where the applicant shall perform the corresponding task with the relevant material, tools and

equipment, as indicated in the Category columns by (P).

2. The examination shall cover each of the skill and knowledge groups 1, 2, 3, 4, 5 and 10.

3. The examination shall cover at least one of the skill and knowledge groups 6, 7, 8 and 9. The candidate shall not

know in advance of the examination which of these four components will be examined.

4. If there is one single box in the categories columns that corresponds to several boxes (several skills and knowledge) in
the skills and knowledge column it means that not necessarily all skills and knowledge have to be tested during the
examination.

1

1.01

1.02

1.03

1.04

1.05

2

2.01

2.02

SKILLS AND KNOWLEDGE

Basic thermodynamics

Know the basic ISO standard units as for temperature, pressure, mass, density, energy

Understand basic theory of refrigeration systems: basic thermodynamics (key terms, parameters and
processes such as Superheat, High Side, Heat of Compression, Enthalpy, Refrigeration Effect, Low Side,
Sub-cooling), properties and thermodynamic transformations of refrigerants including identification of
zeotropic blends and fluid states.

Use relevant tables and diagrams and interpret them in the context of indirect leakage checking (including
checking of the good operation of the system): log p/h diagram, saturation tables of a refrigerant, diagram
of a single compression refrigeration cycle.

Describe the function of the main components in the system (compressor, evaporator, condenser, thermo-
static expansion valves) and the thermodynamic transformations of the refrigerant.

Know the basic operation of the following components used in a refrigeration system and their role and
importance for refrigerant leakage prevention and identification: (a) valves (ball valves, diaphragms, globe
valves, relief valves), (b) temperature and pressure controls, (c) sight glasses and moisture indicators, (d)
defrost controls,
(g) oil control
systems, (h) receivers, (i) liquid and oil separators

(f) measuring devices as manifold thermometer,

(e) system protectors,

Environmental impact of refrigerants and corresponding environmental regulations

Have a basic knowledge of climate change and the Kyoto Protocol

(GWP), the use of fluorinated
Have a basic knowledge of the concept of Global Warming Potential
greenhouse gases and other substances as refrigerants,
fluorinated
the impact of
greenhouse gases on the climate (order of magnitude of their GWP) and relevant provisions of Regulation
(EC) No 842/2006 and relevant Regulations implementing provisions of this Regulation.

the emissions of

CATEGORIES

I

II

III

IV

T

T

T

T

T

T

T

T

T

T

—

T

—

—

—

—

—

—

—

—

—

T

T

T

T

T

T

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SKILLS AND KNOWLEDGE

CATEGORIES

I

II

III

IV

Checks before putting in operation, after a long period of non-use, after maintenance or repair intervention, or during
operation

Carry out a pressure test to check the strength of the system

Carry out a pressure test to check the tightness of the system

Use a vacuum pump

Evacuate the system to remove air and moisture according to standard practice

P

P

—

—

Fill in the data in the equipment records and fill in a report about one or more tests and checks carried out
during the examination.

T

T

—

—

Checks for leakage

Know potential leakage points of refrigeration, air-conditioning and heat pump equipment

Check equipment records prior to a check for leakage and identify the relevant information on any
repeating issues or problem areas to pay special attention to

Make a visual and manual inspection of the whole system in accordance with the Commission Regulation
(EC) No 1516/2007 of 19 December 2007 establishing, pursuant to Regulation (EC) No 842/2006 of the
European Parliament and of the Council, standard leakage checking requirements for stationary refrig-
eration, air conditioning and heat pump equipment containing certain fluorinated greenhouse gases (1)

Carry out a check for leakage of the system using an indirect method in accordance with the Commission
Regulation (EC) No 1516/2007 and the instruction manual of the system

Use portable measuring devices such as manometer sets, thermometers and multi-meters for measuring
Volt/Amp/Ohm in the context of indirect methods for leakage checking, and interpret the measured
parameters.

Carry out a check for leakage of the system using one of the direct methods referred to in Commission
Regulation (EC) No 1516/2007

Carry out a check for leakage of the system using one of the direct methods which does not entail breaking
into the refrigeration circuit, referred to in Commission Regulation (EC) No 1516/2007

Use an electronic leak detection device

Fill in the data in the equipment records

T

T

P

P

P

P

—

P

T

Environment-friendly handling of the system and refrigerant during installation, maintenance, servicing or recovery

Connect and disconnect gauges and lines with minimal emissions

Empty and fill a refrigerant cylinder in both liquid and vapour state

Use a recovery set to recover refrigerant and connect and disconnect recovery set with minimal emissions

Drain F-gas contaminated oil out of a system

Identify refrigerant state (liquid, vapour) and condition (subcooled, saturated or superheated) prior to
charging, to ensure correct method and volume of charge. Fill the system with refrigerant (both in the
liquid and vapour phase) without loss of refrigerant

P

P

P

P

P

P

P

P

P

P

T

T

P

P

P

—

—

—

—

—

T

T

P

P

P

—

—

—

P

P

T

—

—

—

P

P

T

—

—

—

—

—

P

P

P

—

—

3

3.01

3.02

3.03

3.04

3.05

4

4.01

4.02

4.03

4.04

4.05

4.06

4.07

4.08

4.09

5

5.01

5.02

5.03

5.04

5.05

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SKILLS AND KNOWLEDGE

Use scales to weight refrigerant

Fill in the equipment records with all relevant information concerning the refrigerant recovered or added

Know requirements and procedures for handling, storage and transportation of contaminated refrigerant
and oils

CATEGORIES

II

P

T

T

III

P

—

T

IV

—

—

—

I

P

T

T

Component: installation, putting into operation and maintenance of reciprocating, screw and scroll compressors, single and
two-stage

Explain the basic functioning of a compressor (including capacity control and lubricating system) and risks
of refrigerant leakage or release associated to it.

Install a compressor properly, including control and safety equipment, so that no leak or major release
occur once the system is put into operation

Adjust the safety and control switches

Adjust the suction and discharge valves

Check the oil return system

Start up and shut down a compressor and check the good working conditions of the compressor, including
by making measurements during operation of compressor

Write a report about the condition of the compressor which identifies any problems in the functioning of
the compressor that could damage the system and eventually lead to refrigerant leakage or release should
no action be taken

T

P

P

P

T

T

—

—

—

—

—

—

—

—

—

—

—

—

—

—

Component: installation, putting into operation and maintenance of air cooled and water cooled condensers

Explain the basic functioning of a condenser and risks of leakage associated to it

Adjust a discharge pressure control of the condenser

Install a condenser, properly, including control and safety equipment, so that no leak or major release occur
when the system has been put into operation

Adjust the safety and control switches

Check the discharge and liquid lines

Purge non condensable gases out of the condenser using a refrigeration purging device

Start up and shut down a condenser and check the good working condition of the condenser including by
making measurements during operation

Check the surface of the condenser

Write a report about the condition of the condenser which identifies any problems in the functioning that
could damage the system and eventually lead to refrigerant leakage or release should no action be taken

T

P

P

P

P

P

P

T

T

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

Component: installation, putting into operation and maintenance of air cooled and water cooled evaporators

Explain the basic functioning of an evaporator (including defrosting system) and risks of leakage associated
to it

T

T

—

—

5.06

5.07

5.08

6

6.01

6.02

6.03

6.04

6.05

6.06

6.07

7

7.01

7.02

7.03

7.04

7.05

7.06

7.07

7.08

7.09

8

8.01

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SKILLS AND KNOWLEDGE

Adjust an evaporating pressure control of the evaporator

Install an evaporator including control and safety equipment, so that no leak or major release occur when
the system has been put into operation

Adjust the safety and control switches

Check the liquid and suction pipelines in the correct position

Check the hot gas defrost pipeline

Adjust evaporation pressure regulation valve

Start up and shut down an evaporator and check the good working condition of the evaporator, including
by making measurement during operation

Check the surface of the evaporator

Write a report about the condition of the evaporator which identifies any problems in the functioning that
could damage the system and eventually lead to refrigerant leakage or release should no action be taken

CATEGORIES

II

—

III

—

IV

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

I

P

P

P

P

P

T

Component: installation, putting into operation and servicing of Thermostatic Expansion Valves (TEV) and other components

Explain the basic functioning of different kinds of expansion regulators (thermostatic expansion valves,
capillary tubes) and risks of leakage associated to it

Install valves in the correct position

Adjust a mechanical/electronic TEV

Adjust mechanical and electronic thermostats

Adjust a pressure regulated valve

Adjust mechanical and electronic pressure limiters

Check the functioning of an oil separator

Check the condition of a filter dryer

Write a report about the condition of these components which identifies any problems in the functioning
that could damage the system and eventually lead to refrigerant leakage or release should no action be
taken

Piping: building a leak tight piping system in a refrigeration installation

Weld, braze and/or solder leak free joints on metallic tubes and pipes that can be used in refrigeration, air-
conditioning or heat pump systems

Make/check pipe and component supports

T

P

P

P

T

P

P

T

—

—

—

—

—

—

—

—

—

—

—

—

—

—

P

P

—

—

—

—

8.02

8.03

8.04

8.05

8.06

8.07

8.08

8.09

8.10

9

9.01

9.02

9.03

9.04

9.05

9.06

9.07

9.08

9.09

10

10.01

10.02

(1) OJ L 335, 20.12.2007, p. 10.