Panasonic Inverter R32 Series Technical Data & Service Manual page 210

Tips for Energy Saving
Avoid
Do not block the air intake and outlet of the unit. If either is obstructed, the unit will not work well, and may be damaged.
Do not let direct sunlight into the room. Use sunshades, blinds or curtains. If the walls and ceiling of the room are warmed by the
sun, it will take longer to cool the room.
Do
Always try to keep the air filter clean. (Refer to "Care and Cleaning" on page 1-11-107.) A clogged filter will impair the performance of
the unit.
To prevent conditioned air from escaping, keep windows, doors and any other openings closed.
NOT E
Should the power fail while the unit is running
If the power supply for this unit is temporarily cut off, the unit will automatically resume operation once power is restored using the same
settings before the power was interrupted.
IMPORTANT INFORMATION REGARDING THE REFRIGERANT USED
NOT E
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See " Outdoor Unit" under the Section 1-11. Installation Instructions.
SERVICING
CAUTION
Any qualified 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 authorizes their competence to handle refrigerants safely in
accordance with an industry recognised assessment specification.
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.
Servicing shall be performed only as recommended by the manufacturer.
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, (2) to (6) shall be completed prior to conducting work on the system.
(1) 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) 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.
(3) 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.
(4) 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 CO
(5) 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.
(6) 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.
(7) 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 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.
• 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.
fire extinguisher adjacent to the charging area.
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1-11-109
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