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Dehumidifier
WARNING for Using R32/R290 Refrigerant
1. Do not use means to accelerate the defrosting process or to clean, other than those
recommended by the manufacturer.
2. The appliance shall be stored in a room without continuously operating ignition sources (for
example: open flames, an operating gas appliance or an operating electric heater).
3. Do not pierce or burn.
4. Be aware that the refrigerants may not contain an odour.
5. Appliance should be installed, operated and stored in a room with a floor area according to the
amount of refrigerant to be charged
.
For specific information on the type of gas and the
amount, please refer to the relevant label on the unit itself.
6. Appliance should be installed, operated and stored in a room with a floor area larger than 4 m.
7. Compliance with National Gas Regulations shall be observed.
Keep ventilation openings clear of obstruction.
8. The appliance shall be stored so as to prevent mechanical damage from occurring.
9. The appliance must be stored in a well-ventilated area where the room size corresponds to the
room area as specified for operation.
10. Any person who is involved with working on or breaking into a refrigerant circuit should hold a
current valid certificate from an industry-accredited assessment authority, which authorises
their competence to handle refrigerants safely in accordance with an industry recognised
assessment specification.
11. 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.
12. 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).
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 in a way 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 minimised. 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 minimise 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.
