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CAUTION
• Do not touch the switch with wet fingers. Touching a 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 flow-
ing 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.
• Heat exchanger fins are sharp enough to cut. To avoid
injury wear gloves or cover the fins when working around
them.
• Close the front panels when charging refrigerant or during
operation as the fusible plug may blow off, spewing refrig-
erant.
• Install drain piping to proper drainage. Improper drain pip-
ing may result in water leakage and property damage.
• Insulate piping to prevent condensation.
• Be careful when transporting the unit.
• Do not turn off the power supply immediately after stop-
ping operation. Always wait for at least 5 minutes before
turning off the power supply. 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 mineral
oils such as SUNISO oil or moisture) should be pre-
vented 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.
R410A 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 R410A is a blend, the required additional refriger-
ant must be charged in its liquid state. If the refrigerant is
charged in a gaseous state, 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.
• Handheld 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.
• Do not install the air conditioner or heat pump in the fol-
lowing locations:
(a) Where a mineral oil mist or oil spray or vapor is pro-
duced, for example, in a kitchen.
Plastic parts may deteriorate and fall off or result in
water leakage.
English
(b) Where corrosive gas, such as sulfurous acid gas, is
produced.
Corroding copper pipes or soldered parts may result
in refrigerant leakage.
(c) Near machinery emitting electromagnetic waves.
Electromagnetic waves may disturb the operation of
the control system and cause the unit to malfunction.
(d) Where flammable gas may leak, where there is car-
bon fiber, or ignitable dust suspension in the air, or
where volatile flammables such as thinner or gasoline
are handled. Operating the unit in such conditions
may result in a fire.
• Take adequate measures to prevent the outdoor unit from
being used as a shelter by small animals. Small animals
making contact with electrical parts may result in malfunc-
tions, smoke, or fire. Instruct the customer to keep the
area around the unit clean.
• This product is designed for installation at a max altitude
of 10500 ft. (3200 m) above sea level or a min altitude of
-184 ft. (-56 m) below sea level.
NOTE
• Install the power supply and transmission wires for the in-
door and outdoor units at least 3.5 ft. (1 m) away from tele-
visions or radios to prevent image interference or noise.
Depending on the radio waves, a distance of 3.5 ft. (1 m)
may not be sufficient to eliminate the noise.
• Dismantling the unit, treatment of the refrigerant, oil and
additional parts must be done in accordance with the
relevant local, state, and national regulations.
• Do not use the following tools that are used with con-
ventional refrigerants: gauge manifold, charge hose, gas
leak detector, reverse flow check valve, refrigerant charge
base, vacuum gauge, or refrigerant recovery equipment.
• If the conventional refrigerant and refrigerator oil are
mixed in R410A, the refrigerant may deteriorate.
• This air conditioner or heat pump is an appliance that
should not be accessible to the general public.
• As design pressure is 580 psi (4.0 MPa), the wall thick-
ness of field-installed pipes should be selected in accor-
dance with the relevant local, state, and national regula-
tions.
Codes and Regulations
This product is designed and manufactured to comply with
national codes. Installation in accordance with such codes
and/or prevailing local codes/regulations is the responsibility
of the installer. The manufacturer assumes no responsibility
for equipment installed in violation of any codes or regula-
tions. Rated performance is achieved after 72 hours of opera-
tion.
Make sure to use a DAIKIN specified checker while measur-
ing sub cooling. Do not use the check valve or the other port
to measure it.
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