English
2
• For wiring, use the specified wires and connect and fasten them
firmly so that no external force from the wires may be applied to
the terminal connections.
If the wires are not firmly connected and fastened, it may cause
heating, fire or the like.
• When wiring the power supply and connecting the remote control-
ler wiring and transmission wiring, position the wires so that the
EL.COMPO.BOX lid can be securely fastened.
Improper positioning of the EL.COMPO.BOX lid may result in
electric shocks, fire or the terminals overheating.
• If refrigerant gas leaks during installation, ventilate the area
immediately.
Toxic gas may be produced if the refrigerant comes into contact
with fire.
• After completing installation, check for refrigerant gas leakage.
Toxic gas may be produced if the refrigerant gas leaks into the
room and comes into contact with a source of fire, such as a fan
heater, stove or cooker.
• Do not directly touch refrigerant that has leaked from refrigerant
pipes or other areas, as there is a danger of frostbite.
• Do not allow children to climb on the outdoor unit and avoid plac-
ing objects on the unit.
Injury may result if the unit becomes loose and falls.
CAUTION
• Carry out drain piping properly following this installation manual
and insulate the pipe to prevent condensation.
Improper drain piping may result in indoor water leakage and
property damage.
• Install the indoor, BS and outdoor units, power cord and connect-
ing wires at least 1 meter away from televisions or radios to pre-
vent picture interference and noise.
(Depending on the incoming signal strength, a distance of 1 meter
may not be sufficient to eliminate noise.)
• Install the indoor unit and BS unit as far as possible from fluores-
cent lamps.
If a wireless kit is installed in a room where the electronic lighting
type (inverter or rapid start types) fluorescent lamps exist, the
transmitting distance of a remote controller may be shorter.
• Make sure to provide for adequate measures in order to prevent
that the outdoor 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.
• Do not install the air conditioner in the following locations:
1. Where there is a high concentration of mineral oil spray or
vapour (e.g. a kitchen).
Plastic parts may deteriorate and cause parts to fall off or
water to leak.
2. Where corrosive gas, such as sulphurous acid gas, is pro-
duced.
Corrosion of copper pipes or brazed parts may occur and
cause refrigerant leakage.
3. Where there is a machine that generates electromagnetic
wave and where voltage fluctuation often occurs such as a fac-
tory.
Control system may malfunction and as a result the unit may
not properly operate.
4. Where flammable gas may leak, where carbon fibre or ignit-
able dust is suspending in the air, or where volatile flammables
such as paint thinner or gasoline are handled.
Operating the unit in such conditions may result in fire.
• The air conditioner is not intended for use in a potentially explo-
sive atmosphere.
1-2 Special notice of product
[CLASSIFICATION]
This air conditioner comes under the term “appliances not accessible
to the general public”.
[EMC CHARACTERISTICS]
VRV
III
System is a class A product. In a domestic environment this
product may cause radio interference in which case the user may be
required to take adequate measures.
[REFRIGERANT]
VRV
III
System use R410A refrigerant.
• The refrigerant R410A requires that strict precautions be
observed for keeping the system clean, dry and tightly sealed.
Read the chapter “REFRIGERANT PIPING” carefully and follow
these procedures correctly.
A.Clean and dry
Strict measures must be taken to keep impurities (including
fluid, dirt and dust) out of the system.
B.Tightly sealed
R410A contains no chlorine, does not destroy the ozone layer
and so does not reduce the earth’s protection against harmful
ultraviolet radiation. R410A will contribute only slightly to the
greenhouse effect if released into the atmosphere. Therefore,
sealing tightness is particularly important in installation. Care-
fully read the chapter “REFRIGERANT PIPING” and strictly
observe the correct procedures.
• As the design pressure for local connection piping (suction·HP/LP
gas pipe, gas pipe, and liquid pipe) is at least 3.3 MPa, it is possi-
ble to use existing piping (design pressure of at least 3.3 MPa,)
but refer to "6. REFRIGERANT PIPING" and check that existing
piping (including branch piping) is compatible with this unit in
terms of materials and thickness and that it does not appear to be
corroded.
Air tight test (3.3 MPa 24/h) to check the strength of existing piping
and that it has no gas leaks.
If it is not possible to perform a pressure test, replace existing pip-
ing with piping rated at least 3.3 MPa.
• Check that there has not been compressor malfunction, gas sup-
ply exhaustion, or similar issues that could be attributable to pipe
problems in the past. If there have been any such problems,
check that appropriate repairs were made, and if not, implement
such repairs.
• Existing power supply and transmission wiring is also designed to
be used with existing wiring, but check that specifications match
and that parts (especially terminals) do not appear to have aged,
and implement appropriate procedures (e.g. replacement).
• Since R410A is a mixed refrigerant, the required additional refrig-
erant must be charged in its liquid state. (If the system is charged
with refrigerant in its gaseous state, due to composition change,
the system will not function normally).
• The indoor unit is designed for R410A use. See the catalogue for
indoor unit models that can be connected. (Normal operation is
not possible when connecting units that are originally designed for
other refrigerants.)
• The Heat Recovery Series (RQCEQ) cannot be connected to
older BS units (BSVQ-M Type).
Total maximum refrigerant charge limits.
The total maximum refrigerant charge of a VRV
III
system must be
below 100kg, this to be in accordance with CE requirement
(EN60335-2-40 standard).
This means that in case the total maximum refrigerant charge of the
system (factory and additional charge) is equal to or more than 100kg
you must divide your multiple outdoor system into smaller indepen-
dent systems, each containing less than 100kg refrigerant charge.
For factory charge, refer to the unit name plate.
Important information regarding the refrigerant used.
This product contains fluorinated greenhouse gases covered by the
Kyoto Protocol. Do not vent gases into the atmosphere.
Refrigerant type : R410A
GWP
(1)
value : 1975
(1)
GWP = global warming potential
Please fill in with indelible ink,
the factory refrigerant charge of the product,
the additional refrigerant amount charged onsite and
+
the total refrigerant charge on the refrigerant charge label
supplied with the product.
The filled out label must be adhered in the proximity of the product
charging port (e.g. onto the inside of the service cover).
3
5
6
2
1
4
1
factory refrigerant charge of
the product : see unit name
plate
(2)
2
additional refrigerant amount
charged in the field
3 total refrigerant charge
4
Contains fluorinated green-
house gases covered by the
Kyoto Protocol
5 outdoor unit
6
refrigerant cylinder and man-
ifold for charging
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