Beko BEUPC 090 User manual

Air-conditioners
User’s Manual
BEUPC 090 BEUPC 091
BEUPC 120 BEUPC 121
BEUPC 180 BEUPC 181
BEUPC 240 BEUPC 241
EN IT
05M-8500863200-4820-01

Please read this user manual rst!
Dear Customer,
Thank you for preferring a Beko product. We hope that you get the best results
from your product which has been manufactured with high quality and state-of-
the-art technology. Therefore, please read this entire user manual and all other
accompanying documents carefully before using the product and keep it as a
reference for future use. If you handover the product to someone else, give the user
manual as well. Follow all warnings and information in the user manual.
Meanings of the symbols
Following symbols are used in the various section of this manual:
This product has been produced in environmentally friendly, modern facilities
Complies with the WEEE Regulation. Does not contain PCB.
C
Important information or
useful hints about usage.
A
Warning for hazardous
situations with regard to life
and property.
Warning to actions that must
never perform.
B
Warning for electric shock.
Warning for hot surfaces.
Do not cover it.
This symbol shows that the
operation manual should be
read carefully.
This symbol shows that a
service personnel should be
handling this equipment with
reference to the installation
manual.
This symbol
shows that this
appliance used
a flammable
refrigerant. If
the refrigerant
is leaked and
exposed to an
external ignition
source, there is
a risk of fire.

Air-conditioners / User’s Manual 3 / 87EN
CONTENTS
ENGLISH 3-41
ITALIANO 44-86

4 / 87 EN Air-conditioners / User’s Manual
CONTENTS
1 Safety nstructons 6
2 Mantenance nstructon 15
2.1 Information in manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.2 Information on servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.3 Repairs to sealed components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.4 Repair to intrinsically safe components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.5 Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.6 Detection of flammable refrigerants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.7 Leak detection methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.8 Removal and evacuation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.9 Charging procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.10 Decommissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.11 Labelling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.12 Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3 Product ntroducton 22
4 Descrpton of components 23
4.1 View of unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.2 Display screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.3 Indicator light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5 Remote controller 26
6 Remote controller dsplay 28
7 Operatng method 30
7.1 Emergency run. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
7.2 HUL working theory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
7.3 GoClean . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

7.4 How to adjust air flow. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
7.5 Sleep operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
7.6 Timer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
7.7 Turbo. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
7.8 Quiet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
7.9 LED. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
8 Servce and mantenance 32
8.1 Clean the front panel and remote controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
8.2 Clean air filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
8.3 No use for long time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
8.4 Recommendations for energy saving. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
9 Troubleshootng 35
9.1 Air Conditioner is in error. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
9.2 Remote controller is in error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
9.3 Error code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
10Normal phenomena 37
11 European dsposal gudelnes 38
12 Installaton nstructons 39
12.1 F-Gas instruction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
13Specfcatons 40

6 / 87 EN Air-conditioners / User’s Manual
Symbol description
A
Warnng:
A symbol indicating
operation which may
cause personnel
casualties or serious
damages.
A symbol indicating
operation which may
cause personnel
casualties or property
damages.
Installation instruction
A
Warnng:
Never nstall by
yourself.
Split type air conditioner will
work for you for a long period
of time if it is correctly installed.
Improper installation could
cause problems such as leakage
of water or refrigerant, electric
shock or fire.
A
Warnng:
Please confrm the
followng before
nstallaton.
Power specfcatons: Make
sure that the capacity of socket
or breaker and power cable is
sufficient, the voltage is correct
and the socket or breaker
is grounded. There may be
hazard of fire or electric shock
otherwise.
Proper connecton of
wres and ppng: Improper
connection may decrease
the efficiency or cause air
conditioner stop running. Water
or refrigerant leakage may be
resulted as well.
Installaton envronments: Do
not install air conditioner at the
place where there is flammable
or corrosive air.
Operatng nstructon: Please
operate air conditioner in
accordance to this manual.
1 Safety nstructons

Air-conditioners / User’s Manual 7 / 87 EN
1 Safety nstructons
Operatng nstructon
Warnngs:
• Following the safety messages
is very important. These
messages can save you from
being injured or killed. Warning
symbols alert you to be careful
and means danger. Always
follow instructions to be safe
and reduce chances of injury
or death. Warning and danger
signs will precede safety
messages.
• This appliance contains a
UVC lamp. Unintended use
of the appliance or damage
to the housing may result in
the escape of dangerous UVC
radiation. UVC radiation may,
even in small doses, cause
harm to the eyes and skin.
Electrcal safety
A
Groundng:
• This room air
conditioner must be
grounded. Grounding
reduces the risk of
electric shock by
providing an escape
wire for the electric
current. If the power
cord has a grounding
plug with a
grounding wire, plug
it into an outlet that
is properly installed
and grounded. If the
power cord has not
a grounding plug
with a grounding
wire, the grounding
wire must connect
the breaker that is
properly installed
and grounded.

8 / 87 EN Air-conditioners / User’s Manual
Warnng:
• Improper use of the grounding
plug or breaker can result in
a risk of electric shock. Call a
qualified electrician if you don’t
understand the grounding
instructions or if you are not
sure if the air conditioner
is properly grounded. If the
wall outlet or breaker is not
grounded, please contact an
electrician to have it replaced
with a properly grounded outlet
or breaker. Do not, under
any crcumstances, cut or
remove the thrd (ground)
prong from the power cord.
Adapter plug: We strongly
advse aganst usng an
adapter plug or breaker.
Operatng condtons
1. Temperature: T1 instance:
-10°C - 43°C (14°C - 43°C in
cooling-only type)
If the unit runs beyond the
temperature for a long time,
it may cause cooling capacity
to decrease or protector to
work.
2. Relative humidity: <80%
If the unit runs beyond the
humidity range, condensate
may be formed near blade
and outlet of air conditioner.
It’ s normal.
3. In heating operation, strange
smell may come from the unit.
It is Normal phenomenon.
4. The performance parameters
refer to name plate.
5. The waterproof level of
indoor unit is IPXO. Do not use
it in the laundry or bathroom.
6. The outdoor unit can’ t be
installed in a closed area.
1 Safety nstructons

Air-conditioners / User’s Manual 9 / 87 EN
• This appliance is not
intended for use by persons
(including children) with
reduced physical, sensory
or mental capabilities, or
lack of experience and
knowledge, unless they have
been given supervision or
instruction concerning use
of the appliance by a person
responsible for their safety.
Children should be supervised
to ensure that they do not
play with the appliance. The
appliance is only to be used
with the power supply unit
provided with the appliance.
• This appliance can be used
by children aged from 8
years and above if they have
been given supervision or
instruction concerning use of
the appliance in a safe way
and understand the hazards
involved. Cleaning and user
maintenance shall not be
made by children unless they
are aged from 8 years and
above and supervised. Keep
the appliance and its cord out
of reach of children aged less
than 8 years.
• If the supply cord is damaged,
it must be replaced by the
manufacturer or its agent or
similarly qualified person in
order to avoid hazard.
• Detail of type and rating
of fuse, or rating of circuit
breakers;
• Fuse of indoor unit:
T 3.15A/5A 250V/AC
• For 7k~12k models, fuse of
outdoor unit: T 15A 250VAC.
• For 18k models, fuse of
outdoor unit: T 20A 250VAC.
• For 24k models, fuse of
outdoor unit: T 30A 250VAC.
• This appliance is intended
to be used in household and
similar applications such as
1 Safety nstructons

10 / 87 EN Air-conditioners / User’s Manual
– Staff kitchen areas in shops,
offices and other working
environments;
– farm houses;
– by clients in hotels, motels
and other residential type
environments;
– bed and breakfast type
environments;
• The appliance shall state the
insulation of a residual current
device (RCD) having rated
residual operating current not
exceeding 30mA.
Tps
• Install the unit on the north
side, as normally that is the
shaded side. This will enhance
the operation of your unit.
• Use correct electric voltage
and proper ampere for the unit
to run effectively.
• Only let a certified electrician
do any modifications to your
electrical outlet or breaker.
• Use a dedicated line for
the operation of your air
conditioner to avoid the
possibility of an electrical
surge.
• If the supply cord is damaged,
it must be replaced by the
manufacturer or its service
agent or a similarly qualified
person in order to avoid a
hazard.
• The dimensions of the
space necessary for correct
installation of the appliance
including the minimum
permissible distances to
adjacent structures.
• The appliance shall be installed
in accordance with national
wiring regulations.
• Disconnect the power
supply before cleaning and
maintenance.
1 Safety nstructons

Air-conditioners / User’s Manual 11 / 87 EN
• If the appliance is not
connected by plug, an all-pole
disconnection device which
has at least 3 mm separation
distance in all pole and a
residual current device (RCD)
with the rating of above 10 mA
shall be incorporated in the
fixed wiring according to the
national rule.
• If the appliance is connected
by plug, it must be positioned
so that the plug is accessible.
Energy savng gude
• When installing your air
conditioner make sure to
seal all areas where there is a
possibility of air leakage.
• Airflow should not be blocked
inside either by curtains,
drapes or furniture or outside
by shrubs or bushes.
• Do not needlessly use an
electrical light or other
appliances that produce heat.
• Keep the blinds and the drapes
drawn on all the other window.
• While cooking use an exhaust
fan in the kitchen to remove
the excess heat produced.
1 Safety nstructons

12 / 87 EN Air-conditioners / User’s Manual
Only single-phase a.c. power can be used.
please refer to nameplate for details.
Do not put fingers or sticks into the inlet or
outlet of air conditioner; the running fan may
cause injuries.
Do not switch on or off the unit by plugging or
pulling off the plug, or by switching on or off
the breaker
Do not substitute fuse with lead wire or other
materials.
Use the specified power cord; do not change it.
Do not put anything on the outdoor unit.
Keep indoor ventilated, especially when there
is operating gas equipment.
Pull off power plug or switch off breaker if the
air conditioner is not used for a long time.
1 Safety nstructons

Air-conditioners / User’s Manual 13 / 87 EN
A
Warnng:
The appliance is not intended for use by young children
or infirm persons without supervision. Young children
should be supervised to ensure that they do not play with
the appliance. If the supply cord is damaged, it must be
replaced by the manufacturer or its service agent or a
similarly qualified person in order to avoid a hazard.
Do not connect the earth line to gas pipe,
water pipe. Improper grounding may cause
electric shock.
Switch off the unit; cut off the power source
and contact service agent if there is abnormal
phenomenon (e.g. burning smell comes out).
Do not pull off the power plug or switch off the
breaker when it is in operation.
Do not install air conditioner at the place where
flammable gas may leak.
1 Safety nstructons

14 / 87 EN Air-conditioners / User’s Manual
Do not place plants or animals directly in the
path of the air conditioner’ s airflow. Doing so
could harm them.
Switch off the unit, cut off the power source
and make sure the fan stops before cleaning
the unit.
Please contact service agents for service.
Improper service may cause accident.
For removal and installation of air conditioner,
please refer to professionals or contact service
agents.
1 Safety nstructons

Air-conditioners / User’s Manual 15 /87 EN
For appliances using flammable refrigerants, an
installation, service and operation manual, either
separate or combined manuals, shall be provide
and include the information given in
A
Warnng:
Do not use manuals to accelerate the defrosting process
or to clean, other than those recommended by the
manufacturer. The appliance shall be stored in a room
without Continuously operation ignition sources (for
example: open flames, an operation gas appliance or an
operating electric heater.) Do not pierce or burn. Be aware
that refrigerants may not contain an odour.
2.1 Informaton n manual
2.1.1 General
The following information shall be specified in
the manual where the information is needed for
the function of the manual and as applicable to
the appliance:
- information for spaces where refrigerant
pipes are allowed, including statements
• that the installation of pipe-work shall be kept
to a minimum;
• that pipe-work shall be protected from
physical damage and, in the case of
flammable refrgerants, shall not be
installed in an unventilated space, if that
space is smaller than Amin in Annex GG;
• that compliance with national gas regulations
shall be observed;
• that mechanical connections made in
accordance with 22.118 shall be accessible for
maintenance purposes;
• that, for appliances containing flammable
refrgerants, the minimum floor area of the
room shall be mentioned in the form of a
table or a single figure without reference to a
formula;
- the maximum refrigerant charge amount (M);
- the minimum rated airflow, if required by
Annex GG;
- information for handling, installation, cleaning,
servicing and disposal of refrigerant;
- the minimum floor area of the room or the
special requirements for the room in which an
appliance containing flammable refrgerants
can be located as defined in Annex GG, except
where the refrigerant charge (M) is less than
or equal to m1 (M ≤ m1);
- a warning to keep any required ventilation
openings clear of obstruction;
- a notice that servicing shall be performed only
as recommended by the manufacturer.
2 Mantenance nstructon

16 / 87 EN Air-conditioners / User’s Manual
2.1.2 Unventlated areas
The manual shall include a statement advising
that an unventilated area where the appliance
using flammable refrgerants is installed shall
be so constructed that should any refrigerant
leak, it will not stagnate so as to create a fire or
explosion hazard. This shall include:
- a warning that the appliance shall be stored
in a well-ventilated area where the room size
corresponds to the room area as specified for
operation;
- a warning that the appliance shall be stored
in a room without continuously operating
open flames (for example an operating gas
appliance) and ignition sources (for example
an operating electric heater).
The manufacturer should specify other potential
continuously operating sources known to cause
ignition of the refrigerant used.
The appliance shall be stored so as to prevent
mechanical damage from occurring.
2.1.3 Qualfcaton of workers
The manual shall contain specific information
about the required qualification of the working
personnel for maintenance, service and repair
operations. Every working procedure that
affects safety means shall only be carried out by
competent persons according to Annex HH.
Examples for such working procedures are:
- breaking into the refrigerating circuit;
- opening of sealed components;
- opening of ventilated enclosures.
2.2 Informaton on servcng
The manual shall contain specific information for
service personnel according to 2.2.1 to 2.2.9.
2.2.1 Checks to the area
Prior to beginning work on systems containing
flammable refrgerants, safety checks are
necessary to ensure that the risk of ignition
is minimised. For repair to the refrigerating
system, 2.2.3 to 2.2.7 shall be completed prior to
conducting work on the system.
2.2.2 Work procedure
Work shall be undertaken under a controlled
procedure so as to minimise the risk of a
flammable gas or vapour being present while the
work is being performed.
2.2.3 General work area
All maintenance staff and others working in the
local area shall be instructed on the nature of
work being carried out. Work in confined spaces
shall be avoided. The area around the workspace
shall be sectioned off. Ensure that the conditions
within the area have been made safe by control
of flammable material.
2.2.4 Checkng for presence of
refrgerant
The area shall be checked with an appropriate
refrigerant detector prior to and during work,
to ensure the technician is aware of potentially
toxic or flammable atmospheres. Ensure that the
leak detection equipment being used is suitable
for use with all applicable refrigerants, i.e. non-
sparking, adequately sealed or intrinsically safe.
2.2.5 Presence of fre
extngusher
If any hot work is to be conducted on the
refrigeration equipment or any associated parts,
appropriate fire extinguishing equipment shall
be available to hand. Have a dry powder or CO2
fire extinguisher adjacent to the charging area.
2 Mantenance nstructon

Air-conditioners / User’s Manual 17 / 87 EN
2.2.6 No gnton sources
No person carrying out work in relation to a
refrigeration system which involves exposing
any pipe work shall use any sources of ignition
in such a manner that it may lead to the risk of
fire or explosion. All possible ignition sources,
including cigarette smoking, should be kept
sufficiently far away from the site of installation,
repairing, removing and disposal, during which
refrigerant can possibly be released to the
surrounding space. Prior to work taking place,
the area around the equipment is to be surveyed
to make sure that there are no flammable
hazards or ignition risks. “No Smoking” signs shall
be displayed.
2.2.7 Ventlated area
Ensure that the area is in the open or that it is
adequately ventilated before breaking into the
system or conducting any hot work. A degree
of ventilation shall continue during the period
that the work is carried out. The ventilation
should safely disperse any released refrigerant
and preferably expel it externally into the
atmosphere.
2.2.8 Checks to the
refrgeraton equpment
Where electrical components are being changed,
they shall be fit for the purpose and to the correct
specification. At all times the manufacturer’s
maintenance and service guidelines shall be
followed. If in doubt, consult the manufacturer’s
technical department for assistance.
The following checks shall be applied to
installations using flammable refrgerants:
- the charge size is in accordance with the room
size within which the refrigerant containing
parts are installed;
- the ventilation machinery and outlets are
operating adequately and are not obstructed;
- if an indirect refrigerating circuit is being used,
the secondary circuit shall be checked for the
presence of refrigerant;
- marking to the equipment continues to be
visible and legible. Markings and signs that are
illegible shall be corrected;
- refrigeration pipe or components are installed
in a position where they are unlikely to be
exposed to any substance which may corrode
refrigerant containing components, unless
the components are constructed of materials
which are inherently resistant to being
corroded or are suitably protected against
being so corroded.
2.2.9 Checks to electrcal
devces
Repair and maintenance to electrical
components shall include initial safety checks
and component inspection procedures. If a
fault exists that could compromise safety, then
no electrical supply shall be connected to the
circuit until it is satisfactorily dealt with. If the
fault cannot be corrected immediately but it is
necessary to continue operation, an adequate
temporary solution shall be used. This shall be
reported to the owner of the equipment so all
parties are advised.
Initial safety checks shall include:
• that capacitors are discharged: this shall be
done in a safe manner to avoid possibility of
sparking;
• that no live electrical components and wiring
are exposed while charging, recovering or
purging the system;
• that there is continuity of earth bonding.
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18 /87 EN Air-conditioners / User’s Manual
2.3 Repars to sealed
components
2.3.1 During repairs to sealed components,
all electrical supplies shall be
disconnected from the equipment
being worked upon prior to any
removal of sealed covers, etc. If
it is absolutely necessary to have
an electrical supply to equipment
during servicing, then a permanently
operating form of leak detection shall
be located at the most critical point
to warn of a potentially hazardous
situation.
2.3.2 Particular attention shall be paid
to the following to ensure that by
working on electrical components,
the casing is not altered in such a
way that the level of protection is
affected. This shall include damage
to cables, excessive number of
connections, terminals not made to
original specification, damage to seals,
incorrect fitting of glands, etc.
Ensure that the apparatus is mounted securely.
Ensure that seals or sealing materials have
not degraded to the point that they no longer
serve the purpose of preventing the ingress of
flammable atmospheres. Replacement parts
shall be in accordance with the manufacturer’s
specifications.
C
Note: The use of silicon sealant
can inhibit the effectiveness of
some types of leak detection
equipment. Intrinsically safe
components do not have to be
isolated prior to working on them.
2.4 Repar to ntrnscally
safe components
Do not apply any permanent inductive or
capacitance loads to the circuit without ensuring
that this will not exceed the permissible voltage
and current permitted for the equipment in use.
Intrinsically safe components are the only types
that can be worked on while live in the presence
of a flammable atmosphere. The test apparatus
shall be at the correct rating.
Replace components only with parts specified by
the manufacturer. Other parts may result in the
ignition of refrigerant in the atmosphere from a leak.
2.5 Cablng
Check that cabling will not be subject to wear,
corrosion, excessive pressure, vibration, sharp
edges or any other adverse environmental
effects. The check shall also take into account
the effects of aging or continual vibration from
sources such as compressors or fans.
2.6 Detecton of flammable
refrgerants
Under no circumstances shall potential sources
of ignition be used in the searching for or
detection of refrigerant leaks. A halide torch (or
any other detector using a naked flame) shall not
be used.
2.7 Leak detecton methods
The following leak detection methods are
deemed acceptable for all refrigerant systems.
Electronic leak detectors may be used to
detect refrigerant leaks but, in the case of
flammable refrgerants, the sensitivity may
not be adequate, or may need re-calibration.
(Detection equipment shall be calibrated in a
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Air-conditioners / User’s Manual 19 /87 EN
refrigerant-free area.) Ensure that the detector
is not a potential source of ignition and is
suitable for the refrigerant used. Leak detection
equipment shall be set at a percentage of the
LFL of the refrigerant and shall be calibrated to
the refrigerant employed, and the appropriate
percentage of gas (25 % maximum) is confirmed.
Leak detection fluids are suitable for use with
most refrigerants but the use of detergents
containing chlorine shall be avoided as the
chlorine may react with the refrigerant and
corrode the copper pipe-work.
If a leak is suspected, all naked flames shall be
removed/extinguished.
If a leakage of refrigerant is found which requires
brazing, all of the refrigerant shall be recovered
from the system, or isolated (by means of shut
off valves) in a part of the system remote from
the leak. For appliances containing flammable
refrgerants, oxygen free nitrogen (OFN) shall
then be purged through the system both before
and during the brazing process.
2.8 Removal and evacuaton
When breaking into the refrigerant circuit
to make repairs – or for any other purpose –
conventional procedures shall be used. However,
for flammable refrgerants it is important that
best practice is followed since flammability is a
consideration. The following procedure shall be
adhered to:
• remove refrigerant;
• purge the circuit with inert gas;
• evacuate;
• purge again with inert gas;
• open the circuit by cutting or brazing.
The refrigerant charge shall be recovered into
the correct recovery cylinders. For appliances
containing flammable refrgerants, the system
shall be “flushed” with OFN to render the unit
safe. This process may need to be repeated
several times. Compressed air or oxygen shall not
be used for purging refrigerant systems.
For appliances containing flammable
refrgerants, flushing shall be achieved by
breaking the vacuum in the system with OFN
and continuing to fill until the working pressure
is achieved, then venting to atmosphere, and
finally pulling down to a vacuum. This process
shall be repeated until no refrigerant is within
the system. When the final OFN charge is used,
the system shall be vented down to atmospheric
pressure to enable work to take place. This
operation is absolutely vital if brazing operations
on the pipe-work are to take place.
Ensure that the outlet for the vacuum pump
is not close to any ignition sources and that
ventilation is available.
2.9 Chargng procedures
In addition to conventional charging procedures,
the following requirements shall be followed.
- Ensure that contamination of different
refrigerants does not occur when using
charging equipment. Hoses or lines shall be as
short as possible to minimise the amount of
refrigerant contained in them.
- Cylinders shall be kept upright.
- Ensure that the refrigeration system is
earthed prior to charging the system with
refrigerant.
- Label the system when charging is complete
(if not already).
- Extreme care shall be taken not to overfill the
refrigeration system.
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20 / 87 EN Air-conditioners / User’s Manual
Prior to recharging the system, it shall be
pressure-tested with the appropriate purging
gas.
The system shall be leak-tested on completion
of charging but prior to commissioning. A follow
up leak test shall be carried out prior to leaving
the site.
2.10 Decommssonng
Before carrying out this procedure, it is essential
that the technician is completely familiar
with the equipment and all its detail. It is
recommended good practice that all refrigerants
are recovered safely. Prior to the task being
carried out, an oil and refrigerant sample shall
be taken in case analysis is required prior to re-
use of reclaimed refrigerant. It is essential that
electrical power is available before the task is
commenced.
a) Become familiar with the equipment and its
operation.
b) Isolate system electrically.
c) Before attempting the procedure, ensure that:
• mechanical handling equipment is available, if
required, for handling refrigerant cylinders;
• all personal protective equipment is available
and being used correctly;
• the recovery process is supervised at all times
by a competent person;
• recovery equipment and cylinders conform to
the appropriate standards.
d) Pump down refrigerant system, if possible.
e) If a vacuum is not possible, make a manifold so
that refrigerant can be removed from various
parts of the system.
f) Make sure that cylinder is situated on the
scales before recovery takes place.
g) Start the recovery machine and operate in
accordance with manufacturer’s instructions.
h) Do not overfill cylinders. (No more than 80 %
volume liquid charge).
i) Do not exceed the maximum working pressure
of the cylinder, even temporarily.
j) When the cylinders have been filled correctly
and the process completed, make sure that
the cylinders and the equipment are removed
from site promptly and all isolation valves on
the equipment are closed off.
k) Recovered refrigerant shall not be charged
into another refrigeration system unless it has
been cleaned and checked.
2.11 Labellng
Equipment shall be labelled stating that it
has been de-commissioned and emptied
of refrigerant. The label shall be dated and
signed. For appliances containing flammable
refrgerants, ensure that there are labels on
the equipment stating the equipment contains
flammable refrigerant.
2.12 Recovery
When removing refrigerant from a system,
either for servicing or decommissioning, it is
recommended good practice that all refrigerants
are removed safely.
When transferring refrigerant into cylinders,
ensure that only appropriate refrigerant
recovery cylinders are employed. Ensure that
the correct number of cylinders for holding the
total system charge are available. All cylinders
to be used are designated for the recovered
2 Mantenance nstructon