2 Inspection, handling and unpacking the unit
▪ 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 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 temperature or, if you
must touch them, be sure to wear proper gloves.
▪ Install drain piping to proper drainage. Improper drain
piping may result in water leakage and property
damage.
▪ 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
result.
▪ 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 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
refrigerant must be charged in its liquid state. If the
refrigerant is charged in a state of gas, 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 (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 and outside units are for indoor installation only.
▪ 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 and thus
may 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 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. Operating the unit in such
conditions may result in a fire.
▪ Take adequate measures to prevent the outside unit
from being used as a shelter by small animals. Small
animals making contact with electrical parts may result
in malfunctions, smoke, or fire. Instruct the customer to
keep the area around the unit clean.
Installation manual
4
NOTE
▪ Install the power supply and transmission wires for the
indoor and outside 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 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
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 result in 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 equipment installed in
violation of any codes or regulations. Rated performance is achieved
after 72 hours of operation.
Make sure to use a DAIKIN specified checker while measuring sub
cooling. Do not use the check valve or the other port to measure it.
2
Inspection, handling and
unpacking the unit
2 .1
Inspection, handling and
unpacking the unit
This chapter describes what to do after un-boxing the outside unit
once it has been delivered on site.
Including:
▪ Unpacking and handling the outside unit
▪ Removing the accessories from the unit
▪ Removing the transportation stay
Keep the following in mind:
▪ At delivery, the unit must be checked for damage. Any damage
must be reported immediately to the carrier's claims agent.
▪ Bring the packed unit as close as possible to its final installation
position to prevent damage during transport.
▪ When handling the unit, take into account the following:
Fragile, handle the unit with care.
Keep the unit upright in order to avoid compressor
damage.
▪ Choose in advance the path along which the unit is to be brought
in.
RWEQ96~432TATJU + RWEQ96~432TAYDU
VRV W T-Series water-cooled system air conditioner
4P484115-1A – 2017.10