Daikin FTQ18TAVJUA Operation Manual page 3

• Make sure that a separate power supply circuit is
provided for this unit and that all electrical work is carried
out by qualified personnel according to local, state, and
national regulations. An insufficient power supply
capacity or improper electrical construction may lead
to electric shocks or fire.
• Make sure that all wiring is secured, that specified wires
are used, and that no external forces act on the terminal
connections or wires. Improper connections or
installation may result in fire.
• When wiring, position the wires so that the access panel
can be securely fastened. Improper positioning of the
access panel may result in electric shocks, fire, or the
terminals overheating.
• Before touching electrical parts, turn off the unit.
• This equipment can be installed with a Ground-Fault
Circuit Breaker (GFCI). Although this is a recognized
measure for additional protection, with the grounding
system in North America, a dedicated GFCI is not
required.
• Securely fasten the outside unit terminal cover (panel).
If the terminal cover/panel is not installed properly, dust
or water may enter the outside unit causing fire or electric
shock.
• When installing or relocating the system, keep the refrigerant
circuit free from substances other than the specified
refrigerant (R-410A) 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
specified by Daikin are used, fire or explosion may occur.
• Heat exchanger fins are sharp enough to cut. To avoid injury
wear gloves or cover the fins when working around them.
• Do not touch the switch with wet fingers. Touching
switch with wet fingers can cause electric shock.
• Do not allow children to play on or around the unit to
prevent injury.
• 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 flowing 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.
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• 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 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 flowing 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.
• Do not use a charging cylinder. Using a charging cylinder
may cause the refrigerant to deteriorate.
• Refrigerant R-410A in the system must be kept clean,
dry, and tight.
(a) Clean and Dry — Foreign materials (including
mineral oils such as SUNISO oil or moisture)
should be prevented from getting into the system.
(b) Tight — R-410A does not contain any chlorine,
does not destroy the ozone layer, and does not
reduce the earth's protection again harmful
ultraviolet radiation. R-410A can contribute to the
greenhouse effect if it is released. Therefore take
proper measures to check for the tightness of the
refrigerant piping installation. Read the chapter
Refrigerant Piping and follow the procedures.
• Since R-410A 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 R-410A. See the catalog for indoor
models that can be connected. Normal operation is not
possible when connected to other units.
• Remote controller (wireless kit) transmitting distance can
be shorter than expected in rooms with electronic
fluorescent lamps (inverter or rapid start types). Install
the indoor unit far away from fluorescent lamps as much
as possible.
• Indoor units are for indoor installation only. Outdoor
units can be installed either outdoors or indoors. This
unit is for indoor use.
• Do not install the air conditioner or heat pump in the
following locations:
(a) Where a mineral oil mist or oil spray or vapor is
produced, for example, in a kitchen.
Plastic parts may deteriorate and fall off or result
in water leakage.
(b) Where corrosive gas, such as sulfurous acid gas,
is produced. Corroding copper pipes or soldered
parts may result in refrigerant leakage.
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