OM_D0X7303301-01_EN_Print.book Page 9 Friday, May 19, 2023 6:48 PM
Unventilated area
• The appliance shall be stored so as to prevent mechanical damage
from occurring.
Information on servicing
1. Check 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
precautions in item 2 to 6 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.
• When connecting to an outdoor unit of R32 refrigerant and using a
leak detector, the fan may automatically operate even if the air
conditioner is stopped when a refrigerant leak is detected. Be
careful not to get injured by the fan.
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
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use with all applicable 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 on hand.
• Have a dry powder or CO
charging area.
6. No ignition 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.
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, installer shall be
fit for the purpose and to the correct specification.
fire extinguisher adjacent to the
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