Daikin FXZQ05TAVJU User manual

SYSTEM Inverter Air Conditioners
INSTALLATION MANUAL
MODELS
Ceiling Mounted Cassette type (Multi Flow)
FXZQ05TAVJU
FXZQ07TAVJU
FXZQ09TAVJU
FXZQ12TAVJU
FXZQ15TAVJU
FXZQ18TAVJU
English
Français
Español
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.
00_CV_3P493125-1.indd 1 9/21/2017 10:15:58

5
3.23.1
0~3
(0~75)
H1
33-7/16 (≤850)
H2
≤11-3/4 (≤300)
40-60 (1~1.5 m)
3
4
1
2
23
2
≥60*
(≥1500*)
≥60
(≥1500) Unit: in. (mm)
×: Blocking pad kit
≥60*
(≥1500*)
≥98
(≥2500)
1
2 2
11-3/4 (300)
3
2
4
5
1
1
4
2
1
3
4
52
1
5
6
1
1
≥4
(≥100)
H2
L1 L2
98
76
Unit: in. (mm)
Unit: in. (mm)Unit: in. (mm)
BYFQ60C
BYFQ60B
≤25-3/8
(≤645)
H2
≤24-13/16
(≤630)
Unit: in. (mm)
8-1/16
(205)
8-11/16
(220)
BYFQ60C
BYFQ60B
≤25-3/8
(≤645)
H1 H2
≤24-13/16
(≤630)
8
2
4
7
1 9
10 5 6 5 2
743
5
6
7
7-1/16
(180)
≥*13/16
(20)
≥*13/16
(20)
2-1/2
(63)
27-9/16 (700)
1
22-5/8 (575)
3
21 (533)
4
23-1/16-26 (585-660)
2
23-1/16-26 (585-660)
2
27-9/16 (700)
1
23-1/16-26 (585-660)
2
22-5/8 (575)
3
21 (533)
4
8
11-1/4
(285)
6
24-7/16 (620)
1
7-1/2
(190)
23-1/16-23-7/16 (585-595)
2
22-5/8 (575)
3
24-7/16 (620)
1
23-1/16-23-7/16 (585-595)
2
≥*1/2
(12.5)
≥*1/2
(12.5)
22-5/8 (575)
3
2-1/2
(63)
21 (533)
4
7
23-1/16-23-7/16 (585-595)
2
21 (533)
4
8
11-3/4
(298)
5
2-4
(50 - 100)
8
1 32
00_CV_3P493125-1.indd 2 9/21/2017 10:15:58

L1L2 L1L2 L1L2
12
13
15
1
2
3
4
5
6
8
7
9
IN/D OUT/D
F1F2F1F2
Control box
L 2 L 1 P 1 P 2
P 1 P 2
F 1 F 2 T 1 T 2 L 1 L 2 P 1 P 2 F 1 F 2 T 1 T 2 L 2 L 1 P 1 P 2 F 1 F 2 T 1 T 2 L 2 L 1 P 1 P 2 F 1 F 2 T 1 T 2
P 1 P 2 P 1 P 2
1
4
2
3 5
IN/D OUT/D
F1F2F1F2
Control box
L 2 L 1 P 1 P 2
P 1 P 2
F 1 F 2 T 1 T 2 P 1 P 2
P 1 P 2
F 1 F 2 T 1 T 2 L 2 L 1 P 1 P 2
P 1 P 2
F 1 F 2 T 1 T 2 L 2 L 1 L 2 L 1 P 1 P 2
P 1 P 2
F 1 F 2 T 1 T 2
L1L2
1
4
2
3
14
IN/D OUT/D
F1F2F1F2
Control box
IN/DOUT/D
F1F2F1F2
Control box
P 1 P 2
L2L1 P 1 P 2 F 1 F 2 T 1 T 2
16
2
3
16
AB
44
44
2
3
2
3
17
A
B
18
10
Unit: in. (mm)
2
1
5
4
≥4
(≥100)
3
11
2
2
L1L2 L1L2
1
L1L2
L1L2
2
3
4
5+6
1
L1L2
00_CV_3P493125-1.indd 3 9/21/2017 10:16:04

iEnglish
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 refrigerant
leakage, electrical shock, re, or explosion.
Meanings of DANGER, WARNING, CAUTION, and NOTE
Symbols:
DANGER ...............Indicates an imminently
hazardous situation which,
if not avoided, will result in
death or serious injury.
WARNING .............Indicates a potentially
hazardous situation which,
if not avoided, could result in
death or serious injury.
CAUTION ..............Indicates a potentially
hazardous situation which,
if not avoided, may result in
minor or moderate injury. It
may also be used to alert
against unsafe practices.
NOTE ......................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, espe-
cially 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 ground-
ing 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mate-
rials are present due to risk of explosions that can
cause serious injury or death.
• Safely dispose all packing and transportation mate-
rials in accordance with federal/state/local laws or
ordinances. Packing materials such as nails and other
metal or wood parts, including plastic packing ma-
terials used for transportation may cause injuries or
death by suffocation.
WARNING
• Onlyqualied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 ex-
ceeding allowable safety limits. Excessive refrigerant
leaks, in the event of an accident in a closed ambient
space,canleadtooxygendeciency.
• Useonlyspeciedaccessoriesandpartsforinstalla-
tionwork.Failuretousespeciedpartsmayresultin
waterleakage,electricshocks,re,ortheunitfalling.
• Install the air conditioner or heat pump on a founda-
tion strong enough that it can withstand the weight
oftheunit.Afoundationofinsufcient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 pro-
vided for this unit and that all electrical work is carried
outbyqualiedpersonnelaccordingtolocal,state
andnationalregulations.Aninsufcientpowersupply
capacity or improper electrical construction may lead
toelectricshocksorre.
• Makesurethatallwiringissecured,thatspecied
wires are used, and that no external forces act on the
terminal connections or wires. Improper connections
orinstallationmayresultinre.
• When 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,re,
or the terminals overheating.
• Before touching electrical parts, turn off the unit.
• This equipment can be installed with a Ground-Fault
Circuit Breaker (GFCI). Although this is a recognized
measure for additional protection, with the earthing
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
speciedrefrigerant(R410A)suchasair.Anypres-
ence of air or other foreign substance in the refriger-
ant 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 protec-
tion device is shorted and operated forcibly, or parts
otherthanthosespeciedbyDaikinareused,reor
explosion may occur.
01_EN_3P493125-1.indd 1 9/21/2017 10:16:27

ii
English
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 imme-
diately after operation as the refrigerant pipes may be
hot or cold, depending on the condition of the refriger-
antowingthroughtherefrigerantpiping,compres-
sor, 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glovesorcoverthenswhen
working around them.
• Install drain piping to proper drainage. Improper drain
piping may result in water leakage and property dam-
age.
• 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 cylin-
der 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 min-
eral 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 mea-
sures 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 refriger-
ant 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in-
door 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
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 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 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 mal-
function.
(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 transmission wires for
the indoor and outdoor units at least 3.5 feet away
from televisions or radios to prevent image interfer-
ence or noise. Depending on the radio waves, a dis-
tanceof3.5feetmaynotbesufcient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 con-
ventional refrigerants: gauge manifold, charge hose,
gasleakdetector,reverseowcheckvalve,refriger-
ant charge base, vacuum gauge, or refrigerant recov-
ery equipment.
• If the conventional refrigerant and refrigerator oil are
mixedinR410A,therefrigerantmaydeteriorate.
• This air conditioner or heat pump is an appliance that
should not be accessible to the general public.
• Asdesignpressureis478psi,thewallthicknessof
eld-installedpipesshouldbeselectedinaccordance
with the relevant local, state, and national regulations.
01_EN_3P493125-1.indd 2 9/21/2017 10:16:27

1English
FXZQ05TAVJU FXZQ12TAVJU
FXZQ07TAVJU FXZQ15TAVJU
FXZQ09TAVJU FXZQ18TAVJU
VRV SYSTEM Inverter Air Conditioners Installation manual
Contents
Before installation ……………………………………………………… 1
Selecting installation site ……………………………………………… 2
Preparations before installation ……………………………………… 3
Indoor unit installation ………………………………………………… 3
Refrigerant piping work ……………………………………………… 4
Drain piping work ……………………………………………………… 5
Electric wiring work …………………………………………………… 6
Wiring example and how to set the remote controller ……………… 7
Wiring example ………………………………………………………… 8
Installation of the decoration panel…………………………………… 8
Field setting …………………………………………………………… 8
Test operation ………………………………………………………… 10
READ THESE INSTRUCTIONS CAREFULLY BEFORE
INSTALLATION. KEEP THIS MANUAL IN A HANDY PLACE
FOR FUTURE REFERENCE.
IMPROPER INSTALLATION OR ATTACHMENT OF
EQUIPMENT OR ACCESSORIES COULD RESULT IN
ELECTRIC SHOCK, SHORT-CIRCUIT, LEAKS, FIRE OR
OTHER DAMAGE TO THE EQUIPMENT. BE SURE ONLY
TO USE ACCESSORIES MADE BY DAIKIN WHICH ARE
SPECIFICALLY DESIGNED FOR USE WITH THE
EQUIPMENT AND HAVE THEM INSTALLED BY A
PROFESSIONAL.
IF UNSURE OF INSTALLATION PROCEDURES OR USE,
ALWAYS CONTACT YOUR DAIKIN DEALER FOR ADVICE
AND INFORMATION.
The English text is the original instruction. Other languages are
translations of the original instructions.
Before installation
Leave the unit inside its packaging until you reach the installation
site.Where unpacking is unavoidable, use a sling of soft material or
protective plates together with a rope when lifting, this to avoid
damage or scratches to the unit.
When unpacking the unit or when moving the unit after unpacking,
be sure to lift the unit by holding on to the hanger bracket without
exerting any pressure on other parts, especially on refrigerant
piping, drain piping and other resin parts.
Refer to the installation manual of the outdoor unit for items not
described in this manual.
Caution concerning refrigerant series R410A:
The connectable outdoor units must be designed exclusively for
R410A.
Precautions
This appliance is not intended for use by persons, including
children, with reduced physical, sensory or mental capabilities, or
lack of experience and knowledge, unless they have been given
supervision or instruction concerning use of the appliance by a
person responsible for their safety.
Children should be supervised to ensure that they do not play with
the appliance.
This appliance is intended to be used by expert or trained users in
shops, in light industry and on farms, or for commercial use by lay
persons.
Do not install or operate the unit in rooms mentioned below.
- Places with mineral oil, or lled with oil vapour or spray like in
kitchens. (Plastic parts may deteriorate.)
- Where corrosive gas like sulphurous gas exists. (Copper
tubing and brazed spots may corrode.)
- Where volatile ammable gas like thinner or gasoline is used.
- Where machines generating electromagnetic waves exist.
(Control system may malfunction.)
- Where the air contains high levels of salt such as air near the
ocean and where voltage uctuates a lot (e.g. in factories).
Also in vehicles or vessels.
When selecting the installation site, use the supplied paper pattern
for installation.
Do not install accessories on the casing directly. Drilling holes in the
casing may damage electrical wires and consequently cause re.
Accessories
Check if the following accessories are included with your unit.
1 pc. 1 pc. 8 pcs. 4 pcs. 1 pc. each 7 pcs.
1 pc. 1 pc. 1 pc.1 pc. 1 pc. 1 pc.
8 9 1110 12 13
1 2 3
1 pc.
14
54 6
1 pc.
7
1 Metal clamp
2 Drain hose
3 Washer for hanger bracket
4 Screw
5 Installation and operation manuals
6 Clamp
7 Insulation for tting for gas pipe
8 Insulation for tting for liquid pipe
9 Large sealing pad
10 Medium 1 sealing pad
11 Medium 2 sealing pad
12 Small sealing pad
13 Paper pattern for installation (cut out from upper part of packing)
14 Washer for conduit
Page
01_EN_3P493125-1.indd 1 9/21/2017 10:16:28

2
English
Optional accessories
There are two types of remote controllers: wired and wireless.
Select a remote controller according to customer’s request and
install in an appropriate place.
Refer to catalogues and technical literature for selecting a suitable
remote controller.
This indoor unit requires installation of an optional decoration panel.
For the following items, take special care during
constructionandcheckafterinstallationisnished
Tick 
when
checked
Is the indoor unit xed rmly?
The unit may drop, vibrate or make noise.
Is the air tight test nished?
It may result in insufcient cooling or heating.
Is the unit fully insulated?
Condensate water may drip.
Does drainage ow smoothly?
Condensate water may drip.
Does the power supply voltage correspond to that shown on the
name plate?
The unit may malfunction or components may burn out.
Are wiring and piping correct?
The unit may malfunction or components may burn out.
Is the unit safely grounded?
There may be danger of electric shock.
Is the wiring sized according to specications?
The unit may malfunction or components may burn out.
Is nothing blocking the air outlet or inlet of either the indoor or
outdoor units?
It may result in insufcient cooling or heating.
Are refrigerant piping length and additional refrigerant charge
noted down?
The refrigerant charge in the system might not be clear.
Notes to the installer
Read this manual carefully to ensure correct installation. Be sure to
instruct the customer how to properly operate the system and show
him/her the enclosed operation manual.
Selecting installation site
When the conditions in the ceiling are exceeding 80°F (30°C) and a
relative humidity of 80%, or when fresh air is inducted into the ceiling,
an additional insulation is required (minimum 3/8 in. (10 mm)
thickness, polyethylene foam).
For this unit you can select different air ow directions. It is necessary
to purchase an optional blocking pad kit to discharge the air in 2 or 3
(closed corners) directions.
Install the unit so that air vents, lights, or machines near the unit do not
interfere with the air ow.
≥60 (1500)
≥80 (
2000)
≥160 ( 4000)
(A)
≥60 (1500)
(B)
≥60 (1500)
acba
Unit: in. (mm)
a Indoor unit
b Lighting
The gure describes a surface mounted light, but a recessed
ceiling light is not restricted.
c Air fan
A If the air outlet is closed, space marked (A) should be 8 in.
(200 mm) at least.
B ≥60 in. (≥1500 mm) from any static obstruction
1 Select an installation site where the following conditions are fullled
and that meets your customer’s approval.
• Where optimum air distribution can be ensured.
• Where nothing blocks air passage.
• Where condensate water can be properly drained.
• Where the false ceiling is not noticeably on an incline.
• Where sufcient clearance for maintenance and service can be
ensured.
• Where there is no risk of ammable gas leaking.
• The equipment is not intended for use in a potentially explosive
atmosphere.
•
Where piping between indoor and outdoor units is possible within the
allowable limit. (Refer to the installation manual of the outdoor unit.)
• Keep indoor unit, outdoor unit, transmission wiring and remote
controller wiring at least 40 in. (1 m) away from televisions and
radios.This is to prevent image interference and noise in those
electrical appliances. (Noise may be generated depending on the
conditions under which the electric wave is generated, even if
40in. (1 m) is kept.)
• When installing the wireless remote controller kit, the
communication distance between wireless remote controller and
indoor unit might be reduced if there are uorescent lights who
are electrically started in the room.The indoor unit must be
installed as far as possible away from uorescent lights.
2 Ceiling height
This indoor unit may be installed on ceilings up to 11-1/2 ft. (3.5 m)
in height. However, it becomes necessary to make eld settings
using the remote controller when installing the unit at a height over
8-3/4 ft. (2.7 m).
To avoid accidental touching, it is recommended to install the unit
higher than 8-1/4 ft. (2.5 m).
Refer to “Field setting” on page 8 and to the decoration panel
installation manual.
3 Air ow directions
Select the air ow directions best suited to the room and point of
installation. (For air discharge in 3 directions, it is necessary to
make eld settings by means of the remote controller and to close
the air outlet(s). Refer to the installation manual of the optional
blocking pad kit and to “Field setting” on page 8. (See gure 1)
1 Air discharge in 4 directions
2 Air discharge in 3 directions
3 Air discharge in 2 directions
01_EN_3P493125-1.indd 2 9/21/2017 10:16:28

3English
4 Use suspension bolts for installation. Check whether the ceiling is
strong enough to support the weight of the indoor unit. If there is a
risk, reinforce the ceiling before installing the unit.
(The installation pitch is marked on the paper pattern for installation.
Refer to it to check for points requiring reinforcing.)
Space required for installation see gure 2 ( : air ow direction)
1 Air inlet
2 Air discharge
NOTE Leave 8 in. (200 mm) or more space where marked
with *, on sides where the air outlet is closed.
Preparations before installation
1 Relation of ceiling opening to unit and suspension bolt position.
In case of decoration panel
BYFQ60C: See gure 3.1
BYFQ60B: See gure 3.2
1 Decoration panel dimensions
2 Ceiling opening dimensions
3 Indoor unit dimensions
4 Suspension bolt pitch dimensions
5 Refrigerant piping
6 Suspension bolt (x4)
7 False ceiling
8 Hanger bracket
Install the inspection opening on the control box side where
maintenance and inspection of the control box and drain pump are
easy.
1
2
11-3/4
(300)
17-3/4×17-3/4
(450×450)
1 Inspection opening
2 Control box
In case of decoration panel BYFQ60B
NOTE Installation is possible with a ceiling dimension of
26 in. (660 mm). However, to achieve a ceiling-panel
overlapping dimension of 13/16 in. (20 mm) (marked
with*), the spacing between the ceiling and the unit
should be 1-12/16 in. (45 mm) or less. If the spacing
between ceiling and the unit is over 1-12/16 in.
(45 mm), attach ceiling material to the part or recover
the ceiling.
2 Make the ceiling opening needed for installation where applicable.
(For existing ceilings.)
- Refer to the paper pattern for installation for the ceiling opening
dimensions.
- Create the ceiling opening required for installation. From the side
of the opening to the casing outlet or inspection opening,
implement the refrigerant and drain piping and wiring for remote
controller (unnecessary for wireless type). Refer to each piping or
wiring section.
- After making an opening in the ceiling, it may be necessary to
reinforce ceiling beams to keep the ceiling level and to prevent it
from vibrating. Consult the builder for details.
3 Install the suspension bolts.
(Use either a M8-M10 size bolt or equivalent.)
Use anchors for existing ceilings, and a sunken insert, sunken
anchors or other eld supplied parts for new ceilings to reinforce the
ceiling in order to bear the weight of the unit. Adjust clearance from
the ceiling before proceeding further.
Installation example (See gure 4)
1 Ceiling slab
2 Anchor
3 Long nut or turn-buckle
4 Suspension bolt
5 False ceiling
NOTE All the above parts are eld supplied.
For other installation than standard installation,
contact your dealer for details.
Indoor unit installation
When installing optional accessories (except for the decoration panel),
read also the installation manual of the optional accessories.
Depending on the eld conditions, it may be easier to install optional
accessories before the indoor unit is installed. However, for existing
ceilings, always install fresh air intake kit before installing the unit.
1 Install the unit in the ceiling opening.
- Attach the hanger bracket to the suspension bolt. Be sure to x it
securely by using a nut and washer from the upper and lower
sides of the hanger bracket.
- Securing the hanger bracket (See gure 5)
1 Nut (eld supply)
2 Washer (supplied with the unit)
3 Hanger bracket
4 Double nut (eld supply, tighten)
2 Fix the paper pattern for installation. (For new ceilings only.)
- The paper pattern for installation corresponds with the
measurements of the ceiling opening. Consult the builder for
details.
- The center of the ceiling opening is indicated on the paper
pattern for installation.The center of the unit is indicated on the
unit casing.
- The printing pattern can be rotated by 90° to be able to indicate
the correct dimensions on all 4 sides.
- After cutting of the printing pattern for installation from packing,
attach the paper pattern for installation to the unit with the
attached screws as shown in gure 7.
1 Paper pattern for installation
2 Screws (supplied with the unit)
3 Center of the ceiling opening
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3 Adjust the unit to the right position for installation.
(See “Preparations before installation” on page 3.)
4 Check if the unit is horizontally levelled.
- Do not install the unit tilted.The indoor unit is equipped with a
built-in drain pump and  oat switch. (If the unit is tilted against the
direction of the condensate  ow (the drain piping side is raised),
the  oat switch may malfunction and cause water to drip.)
- Check if the unit is levelled at all four corners with a water level or
a water- lled vinyl tube as shown in  gure 11.
1 Water level
2 Vinyl tube
5 Remove the paper pattern for installation. (For new ceilings only.)
Refrigerant piping work
For refrigerant piping of outdoor unit, refer to the installation manual
supplied with the outdoor unit.
Execute thermal insulation work completely on both sides of the gas
piping and liquid piping. Otherwise, this can sometimes result in water
leakage.
Before rigging pipes, check which type of refrigerant is used.
Installation shall be done by a licensed refrigeration
technician, the choice of materials and installation shall
comply with the applicable national and international codes.
Use a pipe cutter and  are suitable for R410A refrigerant.
To prevent dust, moisture or other foreign matter from in ltrating the
tube, either pinch the end, or cover it with tape.
The outdoor unit is charged with refrigerant.
To prevent water leakage, execute thermal insulation work
completely on both sides of the gas and liquid piping. When using a
heat pump, the temperature of the gas piping can reach up to
approximately 250°F (120°C), use insulation which is suf ciently
heat resistant.
Be sure to use both a spanner and torque wrench together when
connecting or disconnecting pipes to/from the unit.
1 2
4
3
1 Torque wrench
2 Spanner
3 Piping union
4 Flare nut
Do not mix anything other than the speci ed refrigerant, such as air,
etc. inside the refrigerant circuit.
Only use annealed material for  are connections.
Refer to Table 1 for the dimensions of  are nut spaces and the
appropriate tightening torque. (Overtightening may damage the
 are and cause leaks.)
Table1
Pipe size Tightening torque Flare dimensions
A (in.) Flare
φ1/4” 10.4-12.7 ft·lbf 0.342-0.358
R0.016 -
0.031
φ1/2” 36.5-44.5 ft·lbf 0.638-0.654
• Refer to Table1 to determine the proper tightening torque.
When connecting the  are nut, coat the  are inner surface with
ether oil or ester oil and initially tighten 3 or 4 turns by hand before
tightening  rmly.
If the refrigerant gas leaks during the work, ventilate the area. A
toxic gas is emitted by the refrigerant gas being exposed to a  re.
Make sure there is no refrigerant gas leak. A toxic gas may be
released by the refrigerant gas leaking indoor and being exposed to
 ames from an area heater, cooking stove, etc.
Finally, insulate as shown in the  gure below (use the supplied
accessory parts).
4 551 2 3 1 Liquid pipe
2 Gas pipe
3 Insulation for  tting for liquid
pipe
4 Insulation for  tting for gas
pipe
5 Clamps
(use 2 clamps per insulation)
Piping insulation procedure
Gas piping Liquid piping
A B
D
C
7
1 23 4 56 6
A BC
1 23 4 56 6
D7
1 Piping insulation material ( eld supply)
2 Flare nut connection
3 Insulation for  tting (delivered with the unit)
4 Piping insulation material (main unit)
5 Main unit
6 Clamp ( eld supply)
7 Medium 1 sealing pad for gas piping (delivered with the unit)
Medium 2 sealing pad for liquid piping (delivered with the unit)
A Turn seams up
B Attach to base
C Tighten the part other than the piping insulation material
D Wrap over from the base of the unit to the top of the  are nut
connection
For local insulation, be sure to insulate local piping all the
way into the pipe connections inside the unit.
Exposed piping may cause condensation or may cause
burns when touched.
Make sure that no oil remains on plastic parts of the
decoration panel (optional equipment).
Oil may cause degradation and damage to plastic parts.
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Cautions for brazing
Be sure to carry out a nitrogen blow when brazing.
Brazing without carrying out nitrogen replacement or releasing
nitrogen into the piping will create large quantities of oxidized  lm
on the inside of the pipes, adversely affecting valves and
compressors in the refrigerating system and preventing normal
operation.
When brazing while inserting nitrogen into the piping, nitrogen must
be set to 2.9 psi (0.02 MPa) with a pressure-reducing valve (=just
enough so that it can be felt on the skin).
1 2 3 4 5
6
6
1 Refrigerant piping
2 Part to be brazed
3 Taping
4 Hand valve
5 Pressure-reducing valve
6 Nitrogen
Drain piping work
Installation of drain piping
Install the drain piping as shown in the  gure and take measures
against condensation. Improperly rigged piping could lead to leaks
and eventually wet furniture and belongings.
40-60 in.
(1-1.5 m)
1
1 Hanging bar
Install the drain pipes.
- Keep piping as short as possible and slope it downwards at a
gradient of at least 1/100 so that air may not remain trapped
inside the pipe.
- Keep pipe size equal to or greater than that of the connecting
pipe (vinyl pipe of 13/16 in. (20 mm) nominal diameter and
1 in. (25 mm) outer diameter, without vertical rise pipe).
- Push the supplied drain hose as far as possible over the drain
socket.
21
1 Drain socket (attached to the unit)
2 Drain hose (supplied with the unit)
- Tighten the metal clamp as indicated in the illustration.
- After the testing of drain piping is  nished, attach the drain
sealing pad (4) supplied with the unit over the uncovered part of
the drain socket (= between drain hose and unit body).
1
52
3 4
3
4
2
A
A'
A-A'
1
1 Drain socket (attached to the unit)
2 Drain hose (supplied with the unit)
3 Metal clamp (supplied with the unit)
NOTE: Bend the tip of the metal clamp without tearing the sealing.
4 Large sealing pad (supplied with the unit)
5 Drain piping ( eld supply)
- Wrap the supplied large sealing pad over the metal clamp and
drain hose to insulate and  x it with clamps.
- Insulate the complete drain piping inside the building
( eld supply).
- If the drain hose cannot be suf ciently set on a slope,  t the hose
with drain raising piping ( eld supply).
How to perform piping (See  gure 6)
1 Ceiling slab
2 Hanging bar
3 Adjustable range
4 Drain raising pipe (nominal diameter of vinyl pipe =1 in. (25 mm))
5 Drain hose (supplied with the unit)
6 Metal clamp (supplied with the unit)
- Connect the drain hose to the drain raising pipes, and insulate
them.
- Connect the drain hose to the drain outlet on the indoor unit, and
tighten it with the clamp.
Precautions
- Install the drain raising pipes at a height of less than H2.
- Install the drain raising pipes at a right angle to the indoor unit
and no more than 11-3/4 in. (300 mm) from the unit.
- To prevent air bubbles, install the drain hose level or slightly tilted
up (≤3 in. (≤75 mm)).
- Drain pump mounted in this unit is high lift type. Characteristic of
this pump is that the higher lifting height, the lower drainage
sound.Therefore drain lifting height of 11-3/4 in. (300 mm) is
recommended.
Decoration panel H2
BYFQ60C 25-6/16 in. (645 mm)
BYFQ60B 24-13/16 in. (630 mm)
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NOTE The incline of attached drain hose should be
3 in. (75 mm) or less so that the drain socket does
not have to withstand additional force.
To ensure a downward slope of 1:100, install
hanging bars every 39-1/2 in. (1 m) to 60 in.
(1.5 m).
When unifying multiple drain pipes, install the
pipes as shown in gure 8. Select converging
drain pipes whose gauge is suitable for the
operating capacity of the units.
1 T-joint converging drain pipes
Testing of drain piping
After the piping work is nished, check if drainage ows smoothly.
Add approximately 0.25 gal (1 ) of water gradually through the air
discharge outlet.
Method of adding water (See gure 10)
1 Plastic watering can (tube should be about 4 in. (100 mm) long)
2 Service drain outlet (with rubber plug) (Use this outlet to drain water
from the drain pan)
3 Drain pump location
4 Drain pipe
5 Drain socket (water ow view point)
Check the drainage ow.
In case electric wiring work is nished
Check drainage ow during cooling operation, explained in
“Test operation” on page 10.
In case electric wiring work is not nished
- Remove the control box lid by means of two screws. Connect
the single-phase power supply (208/230V 60Hz) to
connections L1 and L2 on the terminal block power supply and
connect the ground wire rmly (See gure 9).
- Reattach the control box lid and turn on the power.
- Do not touch the drain pump. It may result in electric shock.
1 Control box lid
2 Power supply wiring
3 Ground wire
4 Terminal block for power supply
5 Clamp
6 Transmission wiring
7 Terminal block for transmission wiring
8 Openings for wires
9 Wiring diagram label
(on the back side of the control box lid)
10 Remote controller wiring
Terminal block for power supply (4)
L
1
L
2
- Conrm the drain operation looking at the drain socket.
- After checking the drainage ow, turn off power, remove the
control box lid and disconnect the power supply wiring from the
terminal block for power supply again. Attach the control box
lid as before.
Electric wiring work
General instructions
All eld wiring and components must be installed by a licensed
electrician and must comply with relevant national, state and local
code.
Use copper wire only.
Follow the ‘Wiring diagram label’ attached to the back side of the
control box lid to wire outdoor unit, indoor units and the remote
controller. For details on hooking up the remote controller, refer to
the “Installation manual of the remote controller”.
All wiring must be performed by an authorized electrician.
A main switch or other means for disconnection, having a contact
separation in all poles, must be incorporated in the xed wiring in
accordance with relevant local and national code.
Note that the operation will restart automatically if the main power
supply is turned off and then turned back on again.
Be sure to ground the air conditioner.
Do not connect the ground wire to:
- gas pipes: might cause explosions or re if gas leaks.
- telephone ground wires or lightning rods: might cause abnormally
high electric potential in the ground during lightning storms.
- plumbing pipes: no grounding effect if hard vinyl piping is used.
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Electrical characteristics
Indoor units Power supply Fan motor
Model Hz Volts Voltage
range MCA MOP KW FLA
FXZQ05TAVJU
60 208-
230
MAX.253
MIN.187
0.3 15 0.05 0.2
FXZQ07TAVJU 0.3 15 0.05 0.2
FXZQ09TAVJU 0.3 15 0.05 0.2
FXZQ12TAVJU 0.4 15 0.05 0.3
FXZQ15TAVJU 0.4 15 0.05 0.3
FXZQ18TAVJU 0.6 15 0.05 0.5
MCA: Min. Circuit Amps (A)
MOP: Max. Overcurrent Protection (A)
KW: Fan Motor Rated Output (kW)
FLA: Full Load Amps (A)
NOTE For details, refer to “Electric characteristics” in
Engineering Data Book.
Specicationsforeldsuppliedfusesandwiring
Power supply wiring Remote controller wiring
Transmission wiring
MOP Size Wiring Size
15A
Wiring size and
length must comply
with local codes.
2-conductor,
stranded
non-shielded
copper cable
PVC/vinyl
jacket
(NOTE 2)
AWG
18-16
(0.75-1.25 mm²)
The lengths of remote controller wiring and transmission wiring are as
follows:
(1) Remote controller wiring (indoor unit - remote controller)
………………………………………………Max. 1,640 ft. (500 m)
(2)
Transmission wiring …………Total wiring length 6,560 ft. (2,000 m)
• Outdoor unit - Indoor unit……………… Max. 3,280 ft. (1,000 m)
• Indoor unit - remote controller……………Max. 1,640 ft. (500 m)
NOTE 1 For details,refer to “Wiring example” on page 8.
2 Vinyl cord with sheath or cable.
(Insulated thickness : 1/16 in. (1 mm) or more.)
Wiring example and how to set the remote
controller
Connection of power supply, transmission and remote
controller wiring
Howtoconnectwiring(Seegure9)
(1) Remove the control box lid (2 screws).
1
2
1 Screws
2 Control box lid
(2) Insert the power supply and ground wires into the conduit pipe,
and secure the conduit to the hole in the control box using the
lock nut and the washer for conduit, as shown below.
5
3
7
8
6
4
3 Hole in the control box
4 Washer for conduit
(supplied with the unit)
5 Lock nut (eld supply)
6 Conduit pipe (eld supply)
7 Conduit (eld supply)
8 Opening for transmission
wiring
(3) Connect the power supply and ground wires to the terminal block
for power supply.
(4) In doing this, pull the wires inside through the conduit pipe and x
them securely with the supplied clamp.
(5)
Give enough slack to the wires between the clamp and terminal
block for power supply.
(6) Pull the transmission and remote controller wires inside through
the opening for transmission wiring and connect them to the
terminal block for transmission wiring (no polarity).
Securely x the wires with the supplied clamp.
(7) Give enough slack to the wires between the clamp and the
terminal block for transmission wiring.
(8) Attach the control box lid as before.
(9) After all the wiring connections are done, ll in any gaps in the
wiring openings with putty or sealing pad (small) thus to prevent
small animals or dirt from entering the unit from outside and
causing short circuits in the control box.
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Precautions
1 Observe the notes mentioned below when wiring to the power
supply terminal block.
- Use a round crimp-style terminal for insulation sleeve for
connection to the terminal block for wiring the units.When none
are available, follow the instructions below.
1 2 3
1 Round crimp-style terminal
2 Attach insulation sleeve
3 Wiring
- Do not connect wires of different gauge to the same power supply
terminal. (Looseness in the connection may cause overheating.)
- When clamping wiring, use the clamps (delivered with the unit) to
prevent outside pressure being exerted on the wiring
connections. Tie up rmly. When doing the wiring, make sure the
wiring is neat and does not cause the control box to stick up.
Close the cover rmly.
- When connecting wires of the same gauge, connect them
according to the gure.
Use the specied electric wire. Connect the wire securely to the
terminal. Lock the wire down without applying excessive force to
the terminal. Use torques according to the table below.
Unit: ft·lbf (N·m)
Tightening torque (N·m)
Terminal block for unit transmission and remote
controller 0.58-0.72 (0.79~0.97)
Terminal block for power supply 0.87-1.06 (1.18~1.44)
- When attaching the control box lid, make sure not to pinch any
wires.
2 Do not connect wires of different gauge to the same grounding
terminal. Looseness in the connection may deteriorate the
protection.
3 Remote controller wiring and transmission wiring should be located
at least 1-15/16 in. (50 mm) away from power supply wiring. Not
following this guideline may result in malfunction due to electrical
noise.
4 For the remote controller wiring, refer to the “Installation manual of
the remote controller” supplied with the remote controller.
NOTE The customer has the ability to select the remote
controller thermistor.
5 Never connect the power supply wiring to the terminal block for
transmission wiring.This mistake could damage the entire system.
6 Use only specied wires and tightly connect wires to the terminals.
Be careful that wires do not place external stress on the terminals.
Keep wiring in neat order so that they do not obstruct other
equipment such as popping open the service cover. Make sure the
cover closes tight. Incomplete connections could result in
overheating, and in the worst case, electric shock or re.
Wiring example
Fit the power supply wiring of each unit with a switch and fuse as
shown in gure 16.
1 Power supply
2 Main switch
3 Power supply wiring
4 Transmission wiring
5 Switch
6 Fuse/Breaker
7 BS unit (Heat recovery system only)
8 Indoor unit
9 Remote controller
Complete system example (3 systems)
See gures 12, 13 and 14.
1 Outdoor unit
2 Indoor unit
3 Remote controller (Optional accessory)
4 Most downstream indoor unit
5 For use with 2 remote controllers
6 BS unit (Heat recovery system only)
Whenusing1remotecontrollerfor1indoorunit.(Normal
operation) (See gure 12).
For group control or use with 2 remote controllers
(See gure 13).
When including BS unit (See gure 14).
NOTE It is not necessary to designate indoor unit address
when using group control. The address is automatically
set when the power is activated.
Precautions
1 A single switch can be used to supply power to units on the same
system. However, branch switches and branch circuit breakers must
be selected carefully.
2 For a group control remote controller, choose the remote controller
that suits the indoor unit which has the most functions.
3 Do not connect the ground wire to gas or water pipes, lightning rods
or telephone ground wires.
Installation of the decoration panel
Refer to the installation manual delivered with the decoration panel.
After installing the decoration panel, ensure that there is no space
between the unit body and decoration panel. Otherwise air may leak
through the gap and cause condensation.
Field setting
Field setting must be made from the remote controller in accordance
with the installation condition.
Setting can be made by changing the “Mode number”, “First code
No.” and “Second code No.”.
For setting and operation, refer to the “Field setting” in the
installation manual of the remote controller.
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Summaryofeldsettings
Mode
No.
(Note 1)
First
code
No.
Description of setting
Second code No. (Note 2)
01 02 03 04
10
(20)
0
Filter
contamination -
Heavy/Light
= Setting to
dene time
between 2lter
cleaning display
indications.
(When
contamination
is high, setting
can be changed
to half the time
in-between 2 lter
cleaning display
indications.)
Long
Life
Filter
Light
±2,500 hrs.
Heavy
±1,250 hrs. — —
2Thermostat sensor
selection
Use both the
unit sensor
(or remote
sensor if
installed) AND
the remote
controller
sensor.
(See note 4+5)
Use unit
sensor only
(or remote
sensor if
installed).
(See note
4+5)
Use
remote
controller
sensor
only.
(See note
4+5)
—
3
“Time to clean lter”
displayed or not
displayed
Display Do not
display — —
5
Information to
I-manager,
I-touch controller
Only unit
sensor
value (or
remote
sensor
value if
installed).
Sensor
value as set
by 10-2-0X
or 10-6-0X.
— —
6Thermostat sensor in
group control
Use unit
sensor only
(or remote
sensor if
installed).
(See note 5)
Use both the
unit sensor
(or remote
sensor if
installed) AND
the remote
controller
sensor. (See
note 3+4+5)
— —
12
(22)
0
Output signal X1-
X2 of the optional
KRP1B PCB kit
Thermostat-on +
compressor run
— Operation Malfunction
1
ON/OFF input from outside
(T1/T2 input) = Setting
when forced ON/OFF is to
be operated from outside.
Forced OFF ON/OFF
operation — —
2
Thermostat
differential
changeover = Setting
when remote sensor
is used.
1.8°F
(1°C)
0.9°F
(0.5°C) — —
3
Fan setting during
thermostat OFF at
heating operation
LL Set speed — —
4Differential automatic
changeover
0°F
(0°C)
1.8°F
(1°C)
3.6°F
(2°C)
5.4°F
(3°C)
(See
note 6)
5Auto-restart after
power failure Disabled Enabled — —
6
Fan setting during
thermostat OFF at
cooling operation
LL Set speed — —
13
(23)
0
Setting for air outlet
velocity
This setting is to be
changed in function
of ceiling height.
≤8 to 3/4ft.
(2.7m or
less)
8-3/4 to 10
(2.7-3.0)
10 to
11-1/2
(3.0-
3.5)
—
1
Selection for air ow
direction
This setting is to
be changed when
blocking pad optional
kit is used.
4-way ow 3-way ow 2-way
ow —
4
Airow direction
range setting
This setting is to be
changed when range
of horizontal blade
movement needs to
be changed.
Upper Medium Lower —
Note1:Setting is carried out in the group mode, however, if the mode
number inside parentheses is selected, indoor units can also
be set individually.
Note 2: Factory settings of the Second code No. are marked in grey
background.
Note 3: If group control is selected and remote controller sensor is to
be used, then set 10-6-02 & 10-2-03.
Note4:If setting 10-6-02 + 10-2-01 or 10-2-02 or 10-2-03 are set at
the same time, then setting 10-2-01, 10-2-02 or 10-2-03 have
priority.
Note 5: If setting 10-6-01 + 10-2-01 or 10-2-02 or 10-2-03 are set at
the same time, then setting for group connection, 10-6-01 has
priority and for individual connection, 10-2-01, 10-2-02 or
10-2-03 have priority.
Note 6: More settings for Differential automatic change over
temperatures are:
Second code No. 05 7.2°F(4°C)
06 9.0°F(5°C)
07 10.8°F(6°C)
08 12.6°F(7°C)
When using wireless remote controllers it is necessary to use
address setting. Refer to the installation manual attached to the
wireless remote controller for the setting instructions.
01_EN_3P493125-1.indd 9 9/21/2017 10:16:31

10
English
ForControlwith2RemoteControllers(Tocontrol1indoor
unit with 2 remote controllers)
• For control with 2 remote controllers, set one remote controller as
Main and the other remote controller as Sub.
Changeover method from Main to Sub and vice versa
Refer to the installation manual attached to the remote controller.
Wiring method
1 Remove the control box lid.
2 Carry out additional wiring from the remote controller 2 (Sub) to the
terminals (P1, P2) for remote controller wiring on the terminal block
(X1M) in the control box.
F2F1P2P1 T2T1
1
2
3 4
1 Terminal block for transmission wiring
2 Terminal for remote controller wiring (P1, P2)
No polarity
3 Remote controller 1 (Main)
4 Remote controller 2 (Sub)
Caution
• When using the group control and the 2 remote controllers control
at the same time, connect the remote controller 2 (Sub) to the
indoor unit at the end of the crossover wiring (the largest No.).
1 2 3
4 5 6
1 Indoor unit 1
2 Indoor unit 2
3 Indoor unit largest No.
4 Remote controller 1 (Main)
5 Crossover wiring (Remote controller)
6 Remote controller 2 (Sub)
For centralized control
• When centralized equipment (such as centralized controller) is
used for control, it is required to set the group No. on the remote
controller.
For details, refer to the manuals attached to the centralized
equipment.
• Connect the centralized equipment to the indoor unit connected to
the remote controller.
For remote control (force off or on / off operation)
1 Wiring method and specication
• Remote control is available by connecting the external input to
the terminal T1 and T2 on the terminal block for transmission
wiring.
F2 T1 T2
FORCED
OFF
Input A
Wiring
specication
Sheathed vinyl cord
or 2 core cable
Gauge AWG18-16
(0.75 – 1.25 mm2)
Wiring length Max. 328 ft.
(100 m)
External
contact spec
Contact that can
make and break
the min. load of
15 V DC , 1 mA
2 Actuation
• Input A of FORCED OFF and ON/OFF OPERATION will be as
the table shown below.
Input A = ON Input A = OFF
In case of FORCED
OFF
Remote controller
prohibited
Remote controller
permitted
In case of ON/OFF
OPERATION Operation Stop
3 How to choose FORCED OFF or ON/OFF OPERATION
• For choosing FORCED OFF or ON/OFF OPERATION, setting by
remote controller is required.
[1] Enter into the eld setting mode with the remote controller.
[2] Select MODE NO. 12.
[3] Set the FIRST CODE NO. to 1.
[4-1] For FORCED OFF, set the SECOND CODE NO. to 01.
[4-2] For ON/OFF OPERATION, set the SECOND CODE NO. to
02.
(It is set to FORCED OFF when shipped from the factory.)
Test operation
Refer to the installation manual of the outdoor unit.
NOTE When performing eld settings or test operation
without attaching the decoration panel, do not touch
the drain pump. This may cause electric shock.
The operation lamp of the remote controller will ash when an error
occurs. Check the error code on the liquid crystal display to identify the
trouble. Refer to the installation manual attached to the outdoor unit or
contact your dealer. See gure 22.
1 Drain pumping device (built-in) drain water is removed from the room
during cooling
2 Horizontal blade (at air outlet)
3 Air outlet
4 Remote controller
5 Suction grille
6 Air lter (inside suction grille)
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[1709] HT
3P493125-1 EM17A018
00_CV_3P493125-1.indd 4 9/21/2017 10:16:05