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2 English
• When installing or relocating the system, keep the refrigerant
circuit free from substances other than the specified refrigerant
(R410A) such as air. Any presence of air or other foreign sub-
stance in the refrigerant circuit can cause an abnormal pres-
sure rise or rupture, resulting in injury.
• Do not change the setting of the protection devices. If the pres-
sure switch, thermal switch, or other protection device is
shorted and operated forcibly, or parts other than those speci-
fied by Daikin are used, fire or explosion may occur.
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, depend-
ing on the condition of the refrigerant flowing through the
refrigerant piping, compressor, and other refrigerant cycle
parts. It may result in your hands getting burns or frostbite if
you touch the refrigerant pipes.
To avoid injury, give the pipes time to return to normal temper-
ature or, if you must touch them, be sure to wear proper gloves.
• The heat exchanger fins are sharp enough to cut, and can
cause injury if improperly used. To avoid injury, wear gloves or
cover the fins when working around them.
• 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 mineral oils such
as SUNISO oil or moisture) should be prevented 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 pro-
tection 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 refrigerant 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.
• Remote controller 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 fluo-
rescent 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 outdoor 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 pro-
duced.
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 carbon fiber,
or ignitable dust suspension in the air, or where volatile
flammables such as thinner or gasoline are handled. Operat-
ing the unit in such conditions can cause a fire.
• Take adequate measures to prevent the outdoor unit from being
used as a shelter by small animals. Small animals making con-
tact with electrical parts can cause malfunctions, smoke, or
fire. Instruct the customer to keep the area around the unit
clean.
NOTE
• Install the power supply and transmission wires for the indoor
and outdoor units at least 3.5 ft. (1 m) away from televisions 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 addi-
tional parts must be done in accordance with the relevant local,
state, and national regulations.
• Do not use the following tools that are used with conventional
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 deterioration.
• This air conditioner or heat pump is an appliance that should
not be accessible to the general public.
• As design pressure is 478 psi (3.3 MPa), the wall thickness of
field-installed pipes should be selected in accordance with the
relevant local, state, and national regulations.
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 equip-
ment installed in violation of any codes or regulations. Rated per-
formance is achieved after 72 hours of operation.
2. INTRODUCTION
1.
This series uses R410A refrigerant. Be absolutely sure to comply
with “6. REFRIGERANT PIPING”, because even greater caution is
needed to prevent impurities from entering R410A (mineral oils and
water).
2.
The design pressure is 478psi (3.3MPa), which means that piping
may be thicker than conventionally, so please refer to “6. REFRIG-
ERANT PIPING”.
3.
This is a mixed refrigerant, so charge as a liquid when adding refrigerant
.
(If charged as a gas, the composition of the refrigerant may change,
preventing normal operation.)
4.
The indoor unit must use R410A. See the catalog for indoor unit
models which can be connected. (Normal operation is not possible
when connected to other units.)
5.
The power supply of this series is single-phase, 208/230V, 60Hz.
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