Special Notice Of Product - Daikin RXYQ72PYDN Installation Manual

• Install the air conditioner on a foundation strong enough to
withstand the weight of the unit.
A foundation of insufficient strength may result in the unit falling and
causing injuries.
• Carry out the specified installation work after taking into ac-
count strong winds, typhoons or earthquakes.
Improper installation work 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 qualified
personnel according to local laws and regulations and this in-
stallation manual.
An insufficient power supply capacity or improper electrical construc-
tion may lead to electric shocks or fire.
• Make sure that all wiring is secured, the specified wires and used,
and no external forces act on the terminal connections or wires.
Improper connections or installation may result in fire.
• When wiring the power supply and connecting the remote
controller wiring and transmission wiring, position the wires
so that the electric parts box lid can be securely fastened.
Improper positioning of the electric parts box lid may result in electric
shocks, fire or the terminals overheating.
• Before touching electrical parts, turn off the unit.
• Securely install the outside unit terminal cover (panel).
If the terminal cover (panel) is not installed properly, dust or water
may enter the outside unit and fire or electric shock may result.
• When installing or relocating the system, be sure to keep the
refrigerant circuit free from substances other than the speci-
fied refrigerant (R410A), such as air.
Any presence of air or other foreign substance in the refrigerant cir-
cuit causes an abnormal pressure rise or rupture, resulting in injury.
• Do not reconstruct or change the settings 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 result.
• 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 as they
could be injured.
• Refrigerant pipes may be very hot or very cold during or im-
mediately after operation.
Touching them could result in burns or frostbite. To avoid injury give
the pipes time to return to normal temperature or, if you must touch
them, be sure to wear proper gloves.
• Be sure to install a ground fault circuit interrupter.
Failure to install an earth leakage breaker may result in electric
shocks, or fire.
CAUTION
• While following the instructions in this installation manual,
install drain piping in order to ensure proper drainage and insu-
late piping in order to prevent condensation.
Improper drain piping may result in water leakage and property damage.
• Be very careful about product transportation.
• Do not touch the refrigerant pipes during and immediately af-
ter operation.
During and immediately after operation, the refrigerant pipes may be
hot and may be cold, depending on the condition of the refrigerant
flowing through the refrigerant piping, compressor, and other refriger-
ant cycle parts. Your hands may suffer burns or frostbite if you touch
the refrigerant pipes.
• Do not turn off the power immediately after stopping operation.
Always wait at least five minutes before turning off the power. Other-
wise, water leakage and trouble may occur.
• Do not use a charging cylinder.
Using a charging cylinder may cause the refrigerant to deteriorate.
• The refrigerant R410A requires strict cautions for keeping the
system clean, dry and tight.
2
A. Clean and dry
Foreign materials (including mineral oils such as SUNISO oil or
moisture) should be prevented from getting mixed 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 against harmful
ultraviolet radiation.
R410A can contribute slightly to the greenhouse effect if it is
released. Therefore we should take special attention to check the
tightness of the installation.
Read the chapter "Refrigerant piping" carefully and follow these
procedures correctly.
• Since R410A is a mixed refrigerant, the required additional re-
frigerant must be charged in its liquid state. (If the refrigerant
is charged in a state of gas, its composition changes and the
system will not work properly.)
The indoor unit is for R410A. See the catalog for indoor unit models
which can be connected.
(Normal operation is not possible when connected to other units.)
• Remote controller (wireless kit) transmitting distance can re-
sult shorter than expected in rooms with electronic fluores-
cent lamps. (inverter or rapid start types)
Install the indoor unit as far away from fluorescent lamps as possible.
• Install in a machine room that has no water drops.
This unit is for indoor use.
• Do not install the air conditioner in the following locations:
(a) where a mineral oil mist or an 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.
(c) near machinery emitting electromagnetic waves
Electromagnetic waves may disturb the operation of the control
system and result in a malfunction of the unit.
(d) where flammable gas may leak, where there are carbon fiber or
ignitable dust suspensions in the air, or where volatile flammables
such as thinner or gasoline are handled.
Operating the unit in such conditions may result in fire.
• Make sure to provide for adequate measures in order to prevent
that the outside unit be used as a shelter by small animals.
Small animals making contact with electrical parts can cause mal-
functions, smoke or fire. Please instruct the customer to keep the
area around the unit clean.
NOTE
• Install the indoor and outside units, power supply wires and
transmission wires at least 3.5ft. away from televisions or radios
in order to prevent image interference or noise.
(Depending on the radio waves, a distance of 3.5ft. may not be suffi-
cient to eliminate the noise.)
• Dismantling of the unit, treatment of the refrigerant, oil and
eventual other parts, should be done in accordance with the
relevant local 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, refrigerant recovery equipment.)
If the conventional refrigerant and refrigerator oil are mixed in the
R410A, the refrigerant may deteriorate.

1-2 Special notice of product

[CLASSIFICATION]
This air conditioner comes under the term "appliances not accessible to
the general public".
[REFRIGERANT]
VRVIII System use R410A refrigerant.
• The refrigerant R410A requires strict cautions for keeping the sys-
tem clean, dry and tight.
Read the chapter "REFRIGERANT PIPING" carefully and follow
these procedures correctly.
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