Daikin VRV-WIII, Installation Manual

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English 2
• 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 installation manual.
An insufficient power supply capacity or improper electrical con-
struction may lead to electric shocks or fire.
• Make sure that all wiring is secured, the specified wires are used,
and that there is no strain on the terminal connections or wires.
Improper connections or securing of wires may result in abnormal
heat build-up or fire.
• When wiring the power supply and connecting the remote control-
ler wiring and transmission wiring, position the wires so that the
control box lid can be securely fastened.
Improper positioning of the control 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 gas comes into con-
tact 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.
• Be sure to switch off the unit before touching any electrical parts.
• 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 outside unit and avoid plac-
ing objects on the unit.
Injury may result if the unit becomes loose and falls.
• Be sure to earth the air conditioner.
Do not earth the unit to a utility pipe, lightning conductor or tele-
phone earth lead. Imperfect earthing may result in electric shocks
or fire.
A high surge current from lightning or other sources may cause
damage to the air conditioner.
• Be sure to install an earth leakage breaker.
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 to ensure proper drainage and insulate pip-
ing to prevent condensation.
Improper drain piping may result in indoor water leakage and
property damage.
• Install the indoor and outdside units, power cord and connecting
wires at least 1 meter away from televisions or radios to prevent
picture interference and noise.
(Depending on the incoming signal strength, a distance of 1 meter
may not be sufficient to eliminate noise.)
• 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 as far away from fluorescent lamps as pos-
sible.
• 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.
• Install in a machine room that is free of moisture.
The unit is designed for indoor use.
• 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 will deteriorate, parts may fall off and water leak-
age could result.
2. Where corrosive gas, such as sulphurous acid gas, is pro-
duced.
Corroding of copper pipes or soldered parts may result in
refrigerant leakage.
3. Near machinery emitting electromagnetic radiation.
Electromagnetic radiation may disturb the operation of the
control system and result in a malfunction of the unit.
4. Where flammable gas may leak, where there is carbon fibre or
ignitable dust suspensions in the air, or where volatile flamma-
bles such as paint thinner or gasoline are handled.
Operating the unit in such conditions may result in fire.
Disposal requirements
Dismantling of the unit, treatment of the refrigerant, of oil and of
other parts must be done in accordance with relevant local and
national legislation.
CAUTION
The refrigerant R410A requires that strict precautions be
observed for keeping the system clean, dry and tightly sealed.
A.Clean and dry
Strict measures must be taken to keep impurities (including
SUNISO oil and other mineral oils as well as moisture) 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.
Since design pressure is 4.0 MPa or 40 bar (for R407C units:
3.3 MPa or 33 bar), the thickness of pipes must be greater than
previously. Since R410A is a mixed refrigerant, the required addi-
tional refrigerant must be charged in its liquid state. (If the system
is charged with refrigerant in its gaseous state, due to composi-
tion 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 refrig-
erants.)
2. INTRODUCTION
This installation manual concerns VRV inverters of the Daikin
RWEYQ-P series. These units are designed for indoor installation
and used for cooling and heatpump applications.
The RWEYQ-P units can be combined with Daikin VRV series indoor
units for air conditioning purposes.
The present installation manual describes the procedures for
unpacking, installing and connecting the RWEYQ-P units. Installa-
tion of the indoor units is not described in this manual. Always refer to
the installation manual supplied with these units for their installation.
2-1 Combination
The indoor units can be installed in the following range.
• Always use appropriate indoor units compatible with R410A.
To lean which models of indoor units are compatible with
R410A, refer to the product catalogs.
• Total capacity of indoor units
〈
Outside unit
〉 〈
Total capacity index of indoor units
〉
RWEYQ8PY1 ............................. 100 ~ 260
RWEYQ10PY1 ........................... 125 ~ 325
RWEYQ16PY1 ........................... 200 ~ 520
RWEYQ18PY1 ........................... 225 ~ 585
RWEYQ20PY1 ........................... 250 ~ 650
RWEYQ24PY1 ........................... 300 ~ 780
RWEYQ26PY1 ........................... 325 ~ 845
RWEYQ28PY1 ........................... 350 ~ 910
RWEYQ30PY1 ........................... 375 ~ 975
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