Panasonic Appliances Air-Conditioning Malaysia Sdn. Bhd. & Panasonic Appliances Air-Conditioning R & D Malaysia Sdn. Bhd.
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A3
UNIT : mm
NAME
OPERATING INSTRUCTIONS ( 5 / 11 )
CODE NO.
ACXF55-18700
6
Safety precautions
WARNING
This appliance is
¿
lled with R32
(mild
À
ammable refrigerant).
If the refrigerant is leaked and exposed to
an external ignition source, there is a risk
of
¿
re.
Indoor unit and outdoor unit
The appliance shall be installed, and/or
operated in a room with
À
oor area larger
than Amin (m²) and keep away from ignition
sources, such as heat/sparks/open
À
ame or
hazardous areas such as gas appliances, gas
cooking, reticulated gas supply systems or
electric cooking appliances, etc.(Refer to Table
A of Installation instructions table for Amin (m²))
Be aware that refrigerant may not contain an
odour, highly recommended to ensure suitable
À
ammable refrigerant gas detectors are
present, operating and able to warn of a leak.
Keep any required ventilation openings clear of
obstruction.
Do not pierce or burn as the appliance is
pressurized. Do not expose the appliance to
heat,
À
ame, sparks, or other sources of ignition.
Else it may explode and cause injury or death.
Precaution for using R32 refrigerant
The basic installation work procedures are the same as
conventional refrigerant (R410A, R22) models.
Since the working pressure is higher than that
of refrigerant R22 models, some of the piping
and installation and service tools are special.
Especially, when replacing a refrigerant R22
model with a new refrigerant R32 model,
always replace the conventional piping and
À
are nuts with the R32 and R410A piping and
À
are nuts on the outdoor unit side.
For R32 and R410A, the same
À
are nut on the
outdoor unit side and pipe can be used.
The mixing of different refrigerants within
a system is prohibited. Models that use
refrigerant R32 and R410A have a different
charging port thread diameter to prevent
erroneous charging with refrigerant R22 and
for safety.
Therefore, check beforehand. [The charging port
thread diameter for R32 and R410A is 1/2 inch.]
Must always ensure that foreign matter (oil,
water, etc.) does not enter the piping. Also,
when storing the piping, securely seal the
opening by pinching, taping, etc. (Handling of
R32 is similar to R410A.)
• Operation, maintenance, repairing and
refrigerant recovery should be carried
out by trained and certi
¿
ed personnel in
the use of
À
ammable refrigerants and as
recommended by the manufacturer. Any
personnel conducting an operation, servicing
or maintenance on a system or associated
parts of the equipment should be trained and
certi
¿
ed.
• Any part of refrigerating circuit (evaporators,
air coolers, AHU, condensers or liquid
receivers) or piping should not be located in
the proximity of heat sources, open
À
ames,
operating gas appliance or an operating
electric heater.
• The user/owner or their authorised
representative shall regularly check the
alarms, mechanical ventilation and detectors,
at least once a year, where as required by
national regulations, to ensure their correct
functioning.
• A logbook shall be maintained. The results
of these checks shall be recorded in the
logbook.
• In case of ventilations in occupied spaces
shall be checked to con
¿
rm no obstruction.
• Before a new refrigerating system is put
into service, the person responsible for
placing the system in operation should
ensure that trained and certi
¿
ed operating
personnel are instructed on the basis of the
instruction manual about the construction,
supervision, operation and maintenance of
the refrigerating system, as well as the safety
measures to be observed, and the properties
and handling of the refrigerant used.
• The general requirement of trained and
certi
¿
ed personnel are indicated as below:
a) Knowledge of legislation, regulations
and standards relating to
À
ammable
refrigerants; and,
b) Detailed knowledge of and skills in
handling
À
ammable refrigerants, personal
protective equipment, refrigerant leakage
prevention, handling of cylinders, charging,
leak detection, recovery and disposal; and,
c) Able to understand and to apply in practice
the requirements in the national legislation,
regulations and Standards; and,
d) Continuously undergo regular and further
training to maintain this expertise.
7
English
S
afety precautions
1. Installation (Space)
• Product with
À
ammable refrigerants, shall not
be installed in an unventilated space, if that
space is smaller than Amin (m²).
• In case of
¿
eld charge, the effect on
refrigerant charge caused by the different pipe
length has to be quanti
¿
ed, measured and
labelled.
• Must ensure the installation of pipe-work shall
be kept to a minimum. Avoid use dented pipe
and do not allow acute bending.
• Must ensure that pipe-work shall be protected
from physical damage.
• Must comply with national gas regulations,
state municipal rules and legislation. Notify
relevant authorities in accordance with all
applicable regulations.
• Must ensure mechanical connections be
accessible for maintenance purposes.
• In cases that require mechanical ventilation,
ventilation openings shall be kept clear of
obstruction.
• When disposal of the product, do follow to the
precautions in #12 and comply with national
regulations.
Always contact to local municipal of
¿
ces for
proper handling.
2. Servicing
2-1. Service personnel
• The system is inspected, regularly supervised
and maintained by a trained and certi
¿
ed
service personnel who is employed by the
person user or party responsible.
• Ensure the actual refrigerant charge size is in
accordance with the room size within which
the refrigerant containing parts are installed.
• Ensure refrigerant charge not to leak.
• Any quali
¿
ed person who is involved with
working on or breaking into a refrigerant
circuit should hold a current valid certi
¿
cate
from an industry-accredited assessment
authority, which authorizes their competence
to handle refrigerants safely in accordance
with an industry recognised assessment
speci
¿
cation.
• Servicing shall only be performed
as recommended by the equipment
manufacturer. Maintenance and repair
requiring the assistance of other skilled
personnel shall be carried out under the
supervision of the person competent in the
use of
À
ammable refrigerants.
• Servicing shall be performed only as
recommended by the manufacturer.
2-2. Work
• Prior to beginning work on systems containing
À
ammable refrigerants, safety checks are
necessary to ensure that the risk of ignition
is minimised. For repair to the refrigerating
system, the precautions in #2-2 to #2-8 must be
followed before conducting work on the system.
• Work shall be undertaken under a controlled
procedure so as to minimize the risk of a
À
ammable gas or vapour being present while
the work is being performed.
• All maintenance staff and others working in the
local area shall be instructed and supervised
on the nature of work being carried out.
• Avoid working in con
¿
ned spaces. Always
ensure away from source, at least 2 meter of
safety distance, or zoning of free space area
of at least 2 meter in radius.
• Wear appropriate protective equipment, including
respiratory protection, as conditions warrant.
• Ensure that the conditions within the area
have been made safe by limit of use of any
À
ammable material. Keep all sources of
ignition and hot metal surfaces away.
2-3. Checking for presence of refrigerant
• The area shall be checked with an
appropriate refrigerant detector prior to and
during work, to ensure the technician is aware
of potentially
À
ammable atmospheres.
• Ensure that the leak detection equipment
being used is suitable for use with
À
ammable
refrigerants, i.e. non sparking, adequately
sealed or intrinsically safe.
• In case of leakage/spillage happened,
immediately ventilate area and stay upwind
and away from spill/release.
• In case of leakage/spillage happened, do
notify persons down wind of the leaking/
spill, isolate immediate hazard area and keep
unauthorized personnel out.
2-4. Presence of
¿
re extinguisher
• If any hot work is to be conducted on the
refrigeration equipment or any associated
parts, appropriate
¿
re extinguishing
equipment shall be available at hand.
• Have a dry powder or CO²
¿
re extinguisher
adjacent to the charging area.
