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INSTALLATION MANUAL
This manual provides the procedures of installation to ensure a safe and good standard of operation for the air conditioner unit.
Special adjustment may be necessary to suit local requirement.
Before using your air conditioner, please read this instruction manual carefully and keep it for future reference.
This appliance is intended to be used by expert or trained users in shops, in light industry and on farms, or for commercial use by lay
persons.
This appliance is not intended for use by persons, including children, with reduced physical, sensory or mental capabilities, or lack of
experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible
for their safety.
Children should be supervised to ensure that they do not play with the appliance.
SAFETY PRECAUTIONS
WARNING
• Only qualifi ed personnel must carry out the installation
work. Installation must be done in accordance with this
installation manual. Improper installation may result in
water leakage, electric shock, or fi re.
• When installing the unit in a small room, take measures
to keep the refrigerant concentration from exceeding
allowable safety limits. Excessive refrigerant leaks, in
the event of an accident in a closed ambient space, can
lead to oxygen defi ciency.
• Use only specifi ed accessories and parts for installation
work. Failure to use specifi ed parts may result in water
leakage, electric shock, fi re, or the unit falling.
• Install the air conditioner or heat pump on a foundation
strong enough to withstand the weight of the unit. A
foundation of insuffi cient strength may result in the unit
falling and causing injuries.
• Take into account strong winds, typhoons, or
earthquakes when installing. Improper installation may
result in the unit falling and causing accidents.
• Make sure that a separate power supply circuit is
provided for this unit and that all electrical work is
carried out by qualifi ed personnel according to local,
state, and national regulations. An insuffi cient power
supply capacity or improper electrical construction may
lead to electric shock or fi re.
• Make sure that all wiring is secured, that specifi ed
wires are used, and that no external forces act on the
terminal connections or wires. Improper connections or
installation may result in fi re.
• When wiring, position the wires so that the electrical
wiring box cover can be securely fastened. Improper
positioning of the electrical wiring box cover may result
in electric shock, fi re, or the terminals overheating.
• Before touching electrical parts, turn off the unit.
• It is recommended to install a ground fault circuit
interrupter if one is not already available. This helps
prevent electric shock or fi re.
• Securely fasten the outdoor unit terminal cover (panel).
If the terminal cover/panel is not installed properly,
dust or water may enter the outdoor unit causing fi re or
electric shock.
• When installing or relocating the system, keep the refrigerant
circuit free from substances other than the specifi ed
refrigerant (R410A) such as air. Any presence of air or other
foreign substance in the refrigerant circuit can cause an
abnormal pressure rise or rupture, resulting in injury.
• Do not change the setting of the protection devices. If the
pressure switch, thermal switch, or other protection device
is shorted and operated forcibly, or parts other than those
specifi ed by Daikin are used, fi re or explosion may occur.
CAUTION
• Do not touch the switch with wet fi ngers. Touching a
switch with wet fi ngers can cause electric shock.
• Do not allow children to play on or around the unit to
prevent injury.
• The heat exchanger fi ns are sharp enough to cut. To
avoid injury wear gloves or cover the fi ns while working
around them.
• Do not touch the refrigerant pipes during and
immediately after operation as the refrigerant pipes
may be hot or cold, depending on the condition of
the refrigerant fl owing through the refrigerant piping,
compressor, and other refrigerant cycle parts. Your
hands may suffer burns or frostbite if you touch the
refrigerant pipes. To avoid injury, give the pipes time
to return to normal temperature or, if you must touch
them, be sure to wear proper gloves.
• Install drain piping to proper drainage. Improper drain
piping may result in water leakage and property damage.
• Insulate piping to prevent condensation.
• Be careful when transporting the product.
• Do not turn off the power immediately after stopping
operation. Always wait for at least 5 minutes before
turning off the power. Otherwise, water leakage may
occur.
• Do not use a charging cylinder. Using a charging
cylinder may cause the refrigerant to deteriorate.
• Refrigerant R410A in the system must be kept clean,
dry, and tight.
( a) Clean and Dry -- Foreign materials (including mineraloils
such as SUNISO oil or moisture) should beprevented
from getting into the system
( b) Tight -- R410A does not contain any chlorine, does not
destroy the ozone layer, and does not reduce the earth’s
protection again harmful ultraviolet radiation. R410Acan
contribute to the greenhouse effect if it is released.
Therefore, take proper measures to check for thetightness
of the refrigerant piping installation. Read the chapter
Refrigerant Piping and follow the procedures.
• Since R410A is a blend, the required additional
refrigerant must be charged in its liquid state. If the
refrigerant is charged in a state of gas, its composition
can change and the system will not work properly.
• The indoor unit is for R410A. See the catalog for indoor
models that can be connected. Normal operation is not
possible when connected to other units.
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