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A. IMPORTANT SAFETY AND GENERAL INFORMATION
A.3 Warning For Using R32 Refrigerant
For R32 refrigerant models:
1. Appliance shall be installed, operated and stored in a room with a
floor area larger than 43 sq ft.
2. Appliance shall not be installed in an unventilated space, if that
space is smaller than 43 sq ft.
3. Compliance with national gas regulations shall be observed.
4. Keep ventilation openings clear of obstruction.
5. The appliance shall be stored so as to prevent mechanical damage
from occurring.
6. 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.
7. Any person who is involved with working on or opening a
refrigerant system must be certified for refrigerant handling as
required by local, state, and federal regulations.
8. 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 flammable
refrigerants.
9. Please follow the instruction carefully to handle, install, clear, and
service the air conditioner to avoid any damage or hazard. Flammable
Refrigerant R32 is used within air conditioner. When maintaining or
disposing the air conditioner, the refrigerant (R32) shall be recovered
properly, and shall not be discharged to air directly.
10. No any open fire or device like a switch which may generate
spark/arcing shall be around the air conditioner to avoid causing
ignition of the flammable refrigerant used.
11. Please follow the instruction carefully to store or maintain the air
conditioner to prevent mechanical damage from occurring.
12. Flammable refrigerant R32 is used in air conditioner. Please
follow the instruction carefully to avoid any hazard.
13. For specific information on the type of gas and the amount of
refrigerant used, refer to the model nameplate on the unit.
CAUTION:
Risk of fire/flammable materials
(Required for R32 units only)
WARNING:
low burning velocity material
(For R32 models apply to IEC60335-2-40:2018)
Note about Fluorinated Gases
1. Fluorinated greenhouse gases are contained in hermetically sealed
equipment. For specific information on the type, the amount and the
Co2 equivalent in tonnes of the fluorinated greenhouse gas(on some
models), please refer to the relevant label on the unit itself.
2. Installation, service, maintenance and repair of this unit must be
performed by a certified technician.
3. Product de-installation and recycling must be performed by a
certified technician.
For Household Use Only Read And Save These Instructions
1. Transport of equipment containing flammable refrigerants:
See transport regulations.
2. Marking of equipment using signs:
See local regulations.
3. Disposal of equipment using flammable refrigerants:
See national regulations.
4. Storage of equipment/appliances:
The storage of equipment should be in accordance with the
manufacturer's instructions.
5. Storage of packed (unsold) equipment:
Storage package protection should be constructed such that
mechanical damage to the equipment inside the package will not
cause a leak of the refrigerant charge. The maximum number
of pieces of equipment permitted to be stored together will be
determined by local regulations.
6. Information on servicing:
1) Checks to the area:
Prior to beginning work on systems containing flammable
refrigerants, safety checks are necessary to ensure that the risk
of ignition is minimized. For repair to the refrigerating system, the
following precautions shall be complied with prior to conducting work
on the system.
2) Work procedure:
Work shall be undertaken under a controlled procedure so as to
minimize the risk of a flammable gas or vapour being present while
the work is being performed.
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.
4) 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 flammable atmospheres. Ensure that the leak detection
equipment being used is suitable for use with flammable refrigerants,
i.e. non-sparking, adequately sealed or intrinsically safe.
5) Presence of fire extinguisher:
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.
6) No ignition sources:
No person carrying out work in relation to a refrigeration system
which involves exposing any pipe work that contains or has contained
flammable refrigerant 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 flammable 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.
7) Ventilated 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.
8) Checks to the refrigeration equipment:
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 refrigerants:
a. The charge size is in accordance with the room size within which
the refrigerant containing
parts are installed;
b. The ventilation machinery and outlets are operating adequately and
are not obstructed;
c. 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;
d. 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
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