Daikin FAQ24TAVJU, FAQ18TAVJU User Manual
SPLIT SYSTEM Air Conditioners
MODELS
Wall-mounted type
FAQ18TAVJU
FAQ24TAVJU
INSTALLATION MANUAL
Read these instructions carefully before installation.
Keep this manual in a handy place for future reference.
This manual should be left with the equipment owner.
Lire soigneusement ces instructions avant l’installation.
Conserver ce manuel à portée de main pour référence
ultérieure.
Ce manuel doit être donné au propriétaire de l’équipement.
Lea cuidadosamente estas instrucciones antes de instalar.
Guarde este manual en un lugar a mano para leer en caso
de tener alguna duda.
Este manual debe permanecer con el propietario del
equipo.
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SPLIT SYSTEM Air Conditioners Installation manual
CONTENTS
1. SAFETY CONSIDERATIONS ........................................ 1
2. BEFORE INSTALLATION .............................................. 3
3. SELECTING INSTALLATION SITE................................ 4
4. INDOOR UNIT INSTALLATION ..................................... 5
5. REFRIGERANT PIPING WORK .................................... 8
6. DRAIN PIPING WORK .................................................. 9
7. ELECTRIC WIRING WORK ......................................... 10
8. WIRING EXAMPLE AND HOW TO SET
THE REMOTE CONTROLLER .................................... 11
9. FIELD SETTING .......................................................... 14
10. TEST OPERATION ...................................................... 15
1. SAFETY CONSIDERATIONS
Read these SAFETY CONSIDERATIONS for Installation
carefully before installing air conditioning equipment. After
completing the installation, make sure that the unit operates
properly during the startup operation.
Instruct the customer on how to operate and maintain the
unit. Inform customers that they should store this Installation
Manual with the Operation Manual for future reference.
Always use a licensed installer or contractor to install this
product. Improper installation can result in water or refriger-
ant leakage, electrical shock, re, or explosion.
Meanings of DANGER, WARNING, CAUTION, and NOTE
Symbols:
DANGER
WARNING
CAUTION
NOTE
................ Indicates an imminently haz-
ardous situation which, if not
avoided, will result in death or
serious injury.
.............. Indicates a potentially haz-
ardous situation which, if not
avoided, could result in death
or serious injury.
............... Indicates a potentially haz-
ardous situation which, if not
avoided, may result in minor
or moderate injury. It may
also be used to alert against
unsafe practices.
....................... Indicates situations that may
result in equipment or property damage accidents only.
DANGER
• Refrigerant gas is heavier than air and replaces oxy-
gen. A massive leak can lead to oxygen depletion,
especially in basements, and an asphyxiation hazard
could occur leading to serious injury or death.
• Do not ground units to water pipes, gas pipes, tele-
phone wires, or lightning rods as incomplete grounding can cause a severe shock hazard resulting in
severe injury or death. Additionally, grounding to gas
pipes could cause a gas leak and potential explosion
causing severe injury or death.
• If refrigerant gas leaks during installation, ventilate
the area immediately. Refrigerant gas may produce
toxic gas if it comes in contact with re. Exposure to
this gas could cause severe injury or death.
• After completing the installation work, check that the
refrigerant gas does not leak throughout the system.
• Do not install unit in an area where ammable materi-
als are present due to risk of explosions that can
cause serious injury or death.
• Safely dispose of all packing and transportation
materials in accordance with federal/state/local laws
or ordinances. Packing materials such as nails and
other metal or wood parts, including plastic packing
materials used for transportation, may cause injuries
or death by suffocation.
WARNING
• Only qualied personnel must carry out the installa-
tion work. Installation must be done in accordance
with this installation manual. Improper installation
may result in water leakage, electric shock, or re.
• When installing the unit in a small room, take mea-
sures to keep the refrigerant concentration from
exceeding allowable safety limits. Excessive refrigerant leaks, in the event of an accident in a closed
ambient space, can lead to oxygen deciency.
• Use only specied accessories and parts for installa-
tion work. Failure to use specied parts may result in
water leakage, electric shocks, re, or the unit falling.
• Install the air conditioner on a foundation strong
enough that it can withstand the weight of the unit. A
foundation of insufcient strength may result in the
unit falling and causing injuries.
• Take into account strong winds, typhoons, or earth-
quakes when installing. Improper installation 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 qualied personnel according to local,
state and national regulations. An insufcient power
supply capacity or improper electrical construction
may lead to electric shocks or re.
• Make sure that all wiring is secured, that specied
wires are used, and that no external forces act on the
terminal connections or wires. Improper connections
or installation may result in re.
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• When wiring, position the wires so that the control
box cover can be securely fastened. Improper positioning of the control box cover may result in electric
shocks, re, or the terminals overheating.
• Before touching electrical parts, turn off the unit.
• This equipment can be installed with a Ground-Fault
Circuit Interrupter (GFCI). Although this is a recognized measure for additional protection, with the
grounding system in North America, a dedicated GFCI
is not necessary.
• When installing or relocating the system, keep the
refrigerant circuit free from substances other than the
specied refrigerant (R410A) such as air. Any presence of air or other foreign substance in the refrigerant circuit can cause an abnormal pressure rise or
rupture, resulting in injury.
• Do not change the setting of the protection devices. If
the pressure switch, thermal switch, or other protection device is shorted and operated forcibly, or parts
other than those specied by Daikin are used, re or
explosion may occur.
CAUTION
• Do not touch the switch with wet ngers. Touching a
switch with wet ngers 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 immedi-
ately after operation as the refrigerant pipes may be
hot or cold, depending on the condition of the refrigerant owing through the refrigerant piping, compressor, and other refrigerant cycle parts. Your hands may
suffer 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.
• Heat exchanger ns are sharp enough to cut. To avoid
injury, wear glove or cover the ns when working
around them.
• 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 supply immediately after
stopping operation. Always wait for at least 5 minutes
before turning off the power supply. 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 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 WORK and
follow the procedures.
• Since R410A is a blend, the required additional refrig-
erant 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.
• Handheld remote controller transmitting distance can
be shorter than expected in rooms with electronic
uorescent lamps (inverter or rapid start types). Install
the indoor unit far away from uorescent lamps as
much as possible.
• Indoor units are for indoor installation only. Outdoor
units can be installed either outdoors or indoors.
• Do not install the air conditioner 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 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 ammable gas may leak, where there is
carbon ber, or ignitable dust suspension in the
air, or where volatile ammables such as thinner
or gasoline are handled. Operating the unit in
such conditions can cause a re.
NOTE
• Install the power supply and control wires for the
indoor and outdoor units at least 3.5 feet (1.0m) away
from televisions or radios to prevent image interference or noise. Depending on the radio waves, a dis-
tance of 3.5 feet (1.0m) may not be sufcient 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 ow 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 deteriorate.
• This air conditioner is an appliance that should not be
accessible to the general public.
• As design pressure is 478 psi (3.3MPa), the wall
thickness of eld-installed pipes should be selected in
accordance with the relevant local, state, and national
regulations.
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2. BEFORE INSTALLATION
• When unpacking the unit or moving the unit after
unpacked, be sure to lift it by the four hanger brackets. Avoid putting any pressure on other parts-hori-
zontal aps, the refrigerant piping, drain piping, and
other resin parts.
• Be sure to remove a cushion (corrugated paper) located
between the heat exchanger and the right air lter.
• Be sure to check the type of R410A refrigerant to be used
before installing the unit. (Using an incorrect refrigerant
will prevent normal operation of the unit.)
• The accessories needed for installation must be retained
in your custody until the installation work is completed. Do
not discard them!
• Decide upon a line of transport.
• Leave the unit inside its packaging while moving, until
reaching the installation site. Where unpacking is unavoidable, use a sling of soft material or protective plates
together with a rope when lifting, to avoid damage or
scratches to the unit.
• For the installation of an outdoor unit, refer to the installa-
tion manual attached to the outdoor unit.
• When using the wireless remote controller, refer to the
installation manual attached to the wireless remote controller.
• Do not install or operate the unit in rooms mentioned
below.
• Laden with mineral oil, or lled with oil vapor or
spray like in kitchens. (Plastic parts may deteriorate
which could eventually cause the unit to fall out of
place, or could lead to leaks.)
• Where corrosive gas like sulfurous gas exists.
(Copper tubing and brazed spots may corrode
which could eventually lead to refrigerant leaks.)
• Where exposed to combustible gases and where
volatile ammable gas like thinner or gasoline is
used.
(Gas in the vicinity of the unit could ignite.)
• Where machines can generate electromagnetic
waves. (Control system may malfunction.)
• Where the air contains high levels of salt such as
that near the ocean and where voltage uctuates
greatly such as that in factories, vehicles or vessels.
• This unit, both indoor and outdoor, is suitable for installa-
tion in a commercial and light industrial environment. If
installed as a household appliance it could cause electromagnetic interference.
2-1 ACCESSORIES
Check if the following accessories are attached to the
indoor unit.
Name (1) Installation panel
Quantity 1 pc. 9 pcs.
Shape
Name
Quantity 1 pc. 1 pc. 1 large 4 small
Shape
Name
Quantity 2 pcs.
(3) Paper pattern
for installation
(6) Securing
screw
(2) Attachment screw
for the installation panel
(4) Insulating
tape
(7) Insulating
tube
1 long
1 short
M4 × 25L
(5) Clamp
(Other)
• Operation
manual
• Installation
manual
Shape
• Warranty
card
M4 × 12L
2-2 OPTIONAL ACCESSORIES
Remote controller Model
Wired type BRC1E73
Wireless type BRC7E818
WARNING
• Entrust installation to the place of purchase or an autho-
rized serviceman. Improper installation could lead to leaks
and, in worse cases, electric shock of re.
• Use of unspecied parts could lead to the unit falling,
leaks and, in worse cases, electric shock or re.
NOTE
• Be sure to read this manual before installing the indoor
unit.
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English
FOR THE FOLLOWING ITEMS, TAKE
[ Space required for installation [in. (mm)] ]
SPECIAL CARE DURING CONSTRUCTION
AND CHECK AFTER INSTALLATION IS
FINISHED.
(1) Items to be checked after completion of work
Items to be checked
Are the indoor and outdoor
units xed rmly?
Is the gas leak test nished?
Is the unit fully insulated?
Does drainage ow
smoothly?
Does the power supply
voltage correspond to that
shown on the name plate?
Are wiring and piping
correct?
Is the unit safely
grounded?
Is wiring size according to
specications?
Is something blocking the
air outlet or inlet of either
the indoor or outdoor unit?
Are refrigerant piping
length and additional
refrigerant charge noted
down?
Did you check that no
wiring connection screws
were loose?
If not properly done,
what is likely to occur
The units may drop, vibrate
or make noise.
It may result in insufcient
cooling or heating.
Condensate water may
drip.
Condensate water may
drip.
The unit may malfunction
or the components may
burn out.
The unit may malfunction
or the components may
burn out.
It may be dangerous at
electric leakage.
The unit may malfunction
or the components burn
out.
It may result in insufcient
cooling.
The refrigerant charge in
the system is not clear.
Electric shock or re.
Check
• Where the wall is strong enough to bear the indoor
unit weight.
• Where sufcient clearance for installation and mainte-
nance can be ensured.
(Refer to Fig. 1 and Fig. 2)
• Where optimum air distribution can be ensured.
• Where nothing blocks the air passage.
• Where condensate can be properly drained.
• Where the wall is not signicantly tilted.
• Where piping between indoor and outdoor unit is
possible within the allowable limit.
(Refer to the installation manual of the outdoor unit.)
• Install the indoor and outdoor units power supply
wiring and connecting wires at least 3.5ft. (1m) away
from televisions or radios in order to prevent image
interference or noise.
(Depending on the radio waves, a distance of 3.5ft.
(1m) may not be sufcient enough to eliminate the
noise.)
• Where the cool (warm) air reaches all across the
room.
≥ 2 (50) ≥ 2 (50)
Fig. 1
Also review the “SAFETY CONSIDERATIONS”
(2) Items to be checked at delivery
Items to be checked Check
Did you explain how to operate the unit while showing
the operation manual to your customer?
Did you give the operation manual over to your cus-
tomer?
2-3 NOTE TO THE INSTALLER
Be sure to instruct customers how to properly operate the
unit (especially cleaning lters, operating different functions,
and adjusting the temperature) by having them carry out
operations themselves while looking at the manual.
3. SELECTING INSTALLATION SITE
(1) Select an installation site where the following condi-
tions are fullled and has the customer’s approval.
•
Where there will be no possible dripping of water from
the refrigerant pipe, drain pipe, etc., in the area between
the unit and ceiling, and in the attic just above the unit.
English
≥ 3-1/2 (90)
Obstruction
≤ 4-3/4 (120)
≥ 1-1/4 (30)
≥ 100 (2500)
(from floor)
For installation
in high places.
Floor
Fig. 2
4
(2) Consider whether the place where the unit will be
installed can support the full weight of the unit, and
reinforce it with boards and beams, etc. if needed
before proceeding with the installation. Also, reinforce the area to prevent vibration and noise before
installing.
(The installation pitch can be found on the paper
pattern for installation (3), so refer to it when considering the necessity for reinforcing the location.)
(3) The indoor unit may not be directly installed on the
wall. Use the attached installation panel (1) before
installing the unit.
DANGER
• Do not install unit in an area where ammable materials
are present due to risk of explosion resulting in serious
injury or death.
WARNING
• If the supporting structural members are not strong
enough to take the unit’s weight, the unit could fall out of
place and cause serious injury.
(c) Secure the installation panel (1) to the wall using
either screws or bolts.
• If using the attachment screws for the installation
panel (2), attach using at least 4 screws on either
side, for a total of 9 screws of the recommended
installation cleat position on the included paper
pattern for installation (3).
• If using bolts, attach using a M8 - M10 bolt or
equivalent (for a total of 2 bolts) on either side.
• If dealing with concrete, use commercially avail-
able foundation bolts (M8 - M10 or equivalent).
(3) If using the left, bottom-left, or bottom-right posi-
tions for the piping, cut out the through-hole for the
piping in the front grille. (Refer to Fig. 4)
Left pipe
Back-left pipe
Bottom-left pipe
4. INDOOR UNIT INSTALLATION
• Use only accessories and parts which are of the desig-
nated specication when installing.
CAUTION
• Install so that the unit does not tilt to either side or forward.
• Do not hold the unit by the horizontal aps when lifting it.
(This may damage the horizontal aps.)
(1) Open the piping through-hole.
• The refrigerant pipe and drain pipe can be routed out
in one of 5 directions: left, bottom-left, back-left,
bottom-right, and back-right. (Refer to Fig. 3)
• Using the paper pattern for installation (3), choose
where to route the piping out of the unit, and drill a
through-hole (f3-1/8” (f80)) in the wall.
Open the hole so that there is a downward slope for
the drain piping. (See “6. DRAIN PIPING WORK”)
(2) Attach the installation panel (1) to the wall.
(a) Check the location for the hole using the included
paper pattern for installation (3).
• Choose a location so that there is at least a 3-5/8”
(90 mm) gap between the ceiling and the main
unit.
(b) Temporarily attach the installation panel (1) at the
temporary-securing position on the paper pattern for
installation (3) and use a level to make sure the drain
hose is either level or tilted slightly downward.
Back-right pipe
Bottom-right pipe
Fig. 3
Front grille
Cut out along
the groove.
Cut away
Fig. 4
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