Daikin FDYA160AV1 User manual

INSTALLATION MANUAL
DUCTED SYSTEM
R-32 Series
Air Conditioners
MODELS
(Ceiling concealed duct type)
FDYAN50/60/71/85/100/125/140/160AV1
FDYA71/85/100/125/140/160AV1
PLEASE READ THESE INSTRUCTIONS CAREFULLY BEFORE INSTALLATION.
KEEP THIS MANUAL IN A HANDY PLACE FOR FUTURE REFERENCE.

2
CONTENTS
SAFETY CONSIDERATION.............................................................................................3
BEFORE INSTALLATION................................................................................................4
SELECTING INSTALLATION SITE.................................................................................5
PREPARATIONS BEFORE INSTALLATION...................................................................6
INDOOR UNIT INSTALLATION.......................................................................................7
REFRIGERANT PIPING WORK......................................................................................7
DRAIN PIPING WORK.....................................................................................................9
ELECTRICAL WIRING WORK......................................................................................10
WIRING EXAMPLE........................................................................................................12
FIELD SETTINGS..........................................................................................................14
SEPARATING THE INDOOR UNIT .............................................................................19
ERROR CODE LIST.......................................................................................................20

3Ducted Air Conditioners
Installation Manual
Installation Manual
FDYAN50/60/71/85/100/125/140/160AV1
FDYA71/85/100/125/140/160AV1
SAFETY CONSIDERATIONS
• Keep this manual where the user can easily nd it.
• The precautions described herein are classied as WARNING and CAUTION. They both contain important information regarding safety.
Be sure to observe all precautions without fail.
WARNING............... Failure to observe a warning may result in death, injury or damage to the equipment.
CAUTION................ Failure to observe a caution may result in injury or damage to the equipment.
WARNING
• Ask your Dealer or qualied personnel to carry out installation work. Do not try to install the machine yourself.
Improper installation may result in water leakage, electric shock of re.
• Perform installation work in accordance with this installation manual.
Improper installation may result in water leakage, electrical shock or re.
• Be sure to use only the specied accessories and parts for installation work.
Failure to use the specied parts may result in water leakage, electric shock, re or the unit failing.
• Install the conditioner on a structure strong enough to withstand the weight of the unit.
A structure of insu󰀩cient strength may result in the equipment falling and causing injuries.
• Carry out the specied installation work after taking into account strong winds, typhoons or earthquakes.
Improper installation work may result in the equipment falling and causing accidents.
• Make sure that a separate power supply circuit is provided for this unit and that all electrical work carried out by qualied personnel
according to local laws, regulations and this installation manual.
An insu󰀩cient power supply capacity or improper electrical construction may lead to electric shocks or re.
• Make sure that all wiring is secured, the specied wires are used, and no external forces act on the terminal connection or wires.
Improper connections or installation may result in re.
• When wiring the power supply and connecting the wiring between the indoor and outdoor units, position the wires so that the switch box
cover can be securely fastened.
Improper positioning of the switch box cover may result in electric shock, re or the terminals overheating.
• If the refrigerant gas leaks during installation, ventilate the area immediately.
• After completing the installation work, check that the refrigerant gas does not leak.
Fire may happen if leaked refrigerants is in contact with ignition source.
• Before obtaining access to the terminals and electrical parts, all supply circuits must be disconnected.
• Do not install the indoor unit or remote controller where they may be exposed to rain or moisture.
Water or other uids on the electrical components may result in re or electric shock.
• Earth the air conditioner. Do not connect the earth wire to gas or water pipes, a lightning conductor or a telephone ground wire.
Improper earthing may result in electric shock.
• Be sure to install an earth leakage breaker. Failure to install an earth leakage breaker may result in electric shock.
• Do not install the indoor unit or remote controller where ammable gases may leak, where there are carbon bre or ignitable dust
suspended in the air, or where volatile ammables such as thinner or gasoline are handled.
• Do not install the indoor unit or remote controller where the area is lled with steam or the ground is always wet. Insulation of the electric
components may be damaged in such conditions and may result in electric shock.
• Be sure to only use refrigerant piping approved for use with R32 refrigerant. The use of unapproved piping may result in explosive
rupture.
CAUTION
• Do not install the air conditioner for purpose other than for human comfort. Do not use the air conditioner for special applications such as
the storage of foods, animals and plants, precision machines and art objects. Deterioration of quality may result.
• This model is not designed for free blow operation. Supply and Return air duct work must be installed. External duct work and air boxes
must be adequately insulated to prevent condensation.
• It is recommended that a safety drain tray is installed. Ensure that it drains separately.
• While following the instructions in this installation manual, install drain piping in order to ensure proper drainage and insulation piping in
order to prevent condensation. Improper drain piping may result in water leakage and property damage.
• Install the indoor and outdoor units, power cords and connecting wires at least 1 metre away from televisions or radios in order to
prevent image interference or noise.
(Depending on the radio waves, a distance of 1 metre may not be su󰀩cient enough to eliminate noise).
• Do not install the air conditioner in the following locations:
(a) Where a mineral oil mist, oil spray vapour is produced, for example in a kitchen.
Plastic parts may deteriorate.
(b) Where corrosive gas, such as sulfuric 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 result in a malfunction of the equipment.
(d) Where salinity in the air is relatively high.
• Be sure to attach a return air lter (eld supplied) inside the return air passage. Failure to install the lter will cause equipment failure.

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Ducted Air Conditioners
Installation Manual
BEFORE INSTALLATION
• The accessories needed for installation must be retained in your custody until the installation work is completed.
Do not discard them!
• Decide upon a safe line of transport.
• Try to leave the unit inside its packaging whilst moving. 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.
• When opening the unit or moving it after opening be sure to lift it by holding onto the unit carefully without
exerting any pressure on other parts, especially drain piping, refrigerant piping and other resin parts.
• Be sure to check the type of refrigerant to be used before doing any work. (Using an incorrect refrigerant will
prevent normal operation of the unit.) This model uses R32.
• This product contains Refrigerant type: R32, which have GWP(Global Warning Potential) value : 675.
• R32 Classication as Flammable Refrigerant with Category 1 Flammable Gas (in WHS Regulations), and
Division 2.1 Flammable Gas in Transport Code.
• Ventilate the area in the event of any refrigerant leak, Pressure test the system to 4.0MPa, and Evacuate the system
to a minimum of 500microns, remove any potential source of ignition and have a re extinguisher at hand.
• Refer to the installation manual of the outdoor unit in conjunction with this manual for items not described in this
manual.
PRECAUTIONS
• Be sure to read this manual before installing the indoor unit.
• This unit is for indoor use only.
• This unit is suitable for installation in a household, commercial and light industrial environment.
• Do not install or operate the unit in rooms mentioned below.
• Laden with mineral oil or lled with oil vapour or spray like in kitchens.
• Where corrosive gas like sulfuric gas exists.
• Where volatile ammable gas like thinner or petrol is used.
• Where machines can generate electromagnetic waves.
• Where the air contains high levels of salt or other corrosive materials.
• Where voltage uctuates greatly.
• In vehicles or vessels.
• To avoid water leaks, etc., be sure to install a return air lter (eld supplied) inside the return air passage.
ACCESSORIES Check that the following accessories are included with your unit.
Name Hose Clamp Drain Hose Installation
Manual
Operation
Manual
Pipe
Insulation
Hanger Bracket
Accessories Pack
(140/160 only)
Hanger Bracket
Accessories Pack
(Others)
Quantity 1 1 1 1 2 1 1
Shape
Note:
• Hanger Brackets Accessories Pack is only supplied for models FDYA(N)71-160AV1, consists of 4 hangers brackets
and M6 assembly screws for the hanger brackets.
OPTIONAL ACCESSORIES
• A Daikin remote controller is not included in the packaging with the indoor unit. It needs to be purchased separately.
Install the remote controller in an appropriate place.
If utilizing the temperature sensor in the remote controller BRC1E62/63 (see page 14) ensure that the controller
is installed in a location where the correct air temperature is measured.
• Hanging brackets are required if the indoor unit is to be suspended. (50/60 Models).
x4
x16 x8
x4

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Installation Manual
NOTE TO THE INSTALLER
Be sure to instruct the customer how to properly operate the system (especially cleaning lters, operating the
di󰀨erent functions and adjusting the temperature). It is recommended to ask the customer to carry out the
operations themselves while you instruct them and refer them to the applicable place in the operation manual.
FOR THE FOLLOWING ITEMS, TAKE SPECIAL CARE DURING CONSTRUCTION AND CHECK
AFTER INSTALLATION IS FINISHED.
(1) Items to be checked after completion of work.
Items to be checked If not properly done, what is likely to occur Check
Is the indoor unit xed rmly? The unit may drop, vibrate or make noise.
Is the gas leak test nished? It may result in insu󰀩cient cooling or heating.
Does the unit require external insulation? 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 the components burn out.
Is the wiring and piping correct? The unit may malfunction or the components burn out.
Is the unit safely grounded? Dangerous during electric leakage.
Is the wiring size according to specication? The unit may malfunction or the components burn out.
Is something blocking the air outlet or inlet of either the
indoor or outdoor units? It may result in insu󰀩cient cooling or heating.
Are refrigerant piping length and additional refrigerant
charge noted down? The refrigerant charge in the system is not clear.
Is the indoor unit positioned so that it is not in contact
with parts of the ceiling? Vibration and noise can be transmitted into building.
Is the airow within specication? Poor performance or malfunction.
Is an air lter installed in the return air? Blocked heat exchanger causing malfunction or
compressor failure.
Is an external drain tray installed? Condensate water may drip.
(2) Items to be checked at completion
• Did you show the customer how to operate the system while referring to the operation manual?
Detailed explanation about operation.
Review the safety consideration.
• Did you hand the operation manual over to the customer?
SELECTING INSTALLATION SITE
(1) Select an installation site where the following
conditions are fullled and that meets your
customer’s approval.
• Where the indoor unit and remote controller are
not exposed to rain or moisture.
• Where the casing of the unit does not contact
parts of the ceiling.
• Where optimum air distribution can be ensured.
• Where nothing blocks the air passage.
• Where condensate can be properly drained.
• Where the structure is strong enough to safely
bear the indoor unit weight.
• Where su󰀩cient clearance for maintenance and
service can be ensured. (see Fig. 1)
• Where there is no risk of ammable gas leakage.
• Where piping between indoor and outdoor units is
possible within the allowable limit. (Refer to the
installation manual for the outdoor unit.)
CAUTION
• Keep the indoor unit, outdoor unit, power supply
wiring and transmission wiring at least 1 metre
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
electrical wave is generated, even if 1 metre is kept.)
(2) When using suspension bolts for installation, hanging
brackets should be installed. Conrm that the
ceiling is strong enough to support the weight of
the indoor unit.

6
Ducted Air Conditioners
Installation Manual
• Hanging brackets are sold as an optional accessory.
(For 50/60 models only)
(3) If the installation requires the indoor unit to be exposed
please ensure the unit is more than 2.5m above the oor so
that children can not touch the unit.
(4) A suitable air lter (eld supplied) must be installed within the
return air duct.
NOTE: Additional thermal insulation material (thickness 10mm or more of glass wool or polyethylene foam)
may be required if the conditions in the ceiling exceeds 30oC and RH 80% or outside air is introduced into the
ceiling or the unit operates for 24 hours. It is also important that a safety drain tray be used. (see Fig. 11)
PREPARATION BEFORE INSTALLATION
To facilitate installation, the indoor unit can be easily separated into smaller parts to make it easier to move to the
nal position. See page 24 for details.
Table 1
Model A B C D E F GH I J
FDYAN50/60AV1
FDYA(N)71/85/100AV1
1090 1072 354 900 460 1072 52 28 44 44
FDYAN125/140/160AV1,
FDYA125AV1
1400 1365 347 935 460 1365 56 32 60 60
FDYA140/160AV1 1400 1365 340 980 502 1365 82 60 62 62
(1) Refer to Table 1 and Fig. 3 for suspension bolt position and horizontal representation of the indoor unit.
Fig. 2
Fig. 3

7Ducted Air Conditioners
Installation Manual
(2) Install the suspension bolt. (Fig. 3 & 4)
(Use M10 size rod for the suspension bolt)
Use and anchor suitable for both the material being
anchored to and the weight of the unit.
(3) Be sure to completely insulate all external duct work
and ttings.
(4) If using rigid duct work install a canvas (or similar) duct
to the air inlet and air outlet so as not to transmit vibration
from the unit to the duct.
Apply acoustic insulation to the inside of the duct.
(5) Install suitable vibration isolator to the suspension bolts.
INDOOR UNIT INSTALLATION
(1) For suspended installation, hanging brackets should be installed
on the unit.
Attach the hanging bracket to the 8 mounting holes
(16 mounting holes for models FDYA140/160AV1)
located on the sides of the unit. (Fig. 3).
(2) Carefully lift the unit so that the hanging brackets can locate on to
the suspension bolts. (Fig. 5) Be sure to clamp the bracket securely
by using a nut and washer (eld supplied) from the upper and
lower sides of the hanging bracket. Ensure that the suspension
bolts are rmly secured. (No up or down movement) (Fig. 5)
CAUTION
(3) Make sure the unit is level.
• Level the unit with a water level or other suitable means. If the
unit is not level, it could become the source of water leaks.
• Check if the unit is level at all four corners with a water level or a
water-lled vinyl tube as shown in the diagrams. (Fig. 6)
(4) Tighten the upper nut.
REFRIGERANT PIPING WORK
`
ALL REFRIGERANT PIPING WORK MUST ONLY BE CARRIED OUT BY A QUALIFIED PERSON
** For refrigerant piping of outdoor units, see the installation manual attached to the outdoor unit. **
Fully insulate the liquid and gas piping separately. Do not leave any gaps otherwise a water leak may occur.
(Seal any joints with glue or duct tape)
When operating in the heating mode, the temperature of the gas piping can reach up to approximately 120oC,
so use insulation which has suitable temperature rating.
Also, in cases where the temperature and humidity surrounding the refrigerant piping can exceed 30oC or RH
80%, reinforce or use thicker pipe insulation (20mm or thicker). Otherwise condensation may form on the
surface of the insulating material.
** Where additional refrigerant is required, be sure to use only R32. The use of other types of
refrigerant could cause product malfunction, refrigerant leak or explosion. **
CAUTION
• Avoid introduction of air or other contaminants into the refrigerant piping. If any air, moisture or other contaminant
remains in the refrigerant piping after the completion of installation, the system will malfunction.
• Carry out su󰀩cient ventilation if the refrigerant gas leaks during installation work.
• Use only R32 rated copper seamless tube manufactured to AS/NZS1571.
Nut (field supply)
Tighten
(double nuts)
Wa
sher
Hanging Bracket
Ceiling slab
Anchor
Long nut or turn-buckle
Suspension bolt
Indoor unit
Ceiling
Fig. 6
Fig. 5
Fig. 4 NOTE: All above parts are eld supplied

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Ducted Air Conditioners
Installation Manual
• Be sure to use both a spanner and torque wrench together, as shown in the diagram, when connecting or
disconnecting pipes to/from the unit. (Fig. 7)
• Use only a aring block suitable for R32 tube. Refer to Table 2 for the specications of the are work.
• When connecting the are nut, coat ether or ester oil only to are inner surface, and initially tighten by hand 3 to 4
turns before tightening rmly. (Fig. 8)
• Use the are nuts included with the indoor unit.
• Refer to Table 2 to determine the proper tightening torque.
CAUTION
• Over tightening the are nuts may cause the are nuts or copper tube to fail and allow the refrigerant to leak.
• Caution to be taken when brazing refrigerant piping. (Where applicable).
Do not use ux when brazing refrigerant piping. Use the phosphor copper brazing ller metal (BCuP)
which does not require ux. (Flux has an extremely harmful inuence refrigerant piping systems. For
instance, if chlorine based ux is used, it will cause pipe corrosion, particularly if the ux contains uorine, it will
damage the refrigerant oil).
During any brazing of the refrigerant piping, you must continually blow dry nitrogen gas through the piping to
expel air from the piping. (Fig. 9) If you braze the piping without doing so a large amount of oxide lm
develops inside the piping and could cause system failure.
Ensure that you use a pressure reducing valve on the dry nitrogen bottle to prevent pinholes caused by
excessively high pressure. (Set the pressure of nitrogen gas to about 0.2 kg/cm2 [19.6 kPa])
Table 2
Torque wrench
Spanner Flare nut
Piping union
Coat the flare inner surface only
with ether oil or ester oil.
Nitrogen
Refrigerant piping
Tape the pipe
Valve
Nitrogen
Reducing valve
Fig. 7 Fig. 8
Fig. 9

9Ducted Air Conditioners
Installation Manual
Not recommended but in case of an emergency
You must use a torque wrench but if you are obliged to install the unit without a torque wrench, you may follow
the installation method below.
As you keep on tightening the are nut with a spanner there is a point where the tightening torque suddenly
increases. From that position, further tighten the are nut using the angle shown below in Table 3:
After the work is nished, make sure to check that there is no gas leak.
Table 3
Make absolutely sure to properly insulate the connecting pipe work and connections using eld supplied
insulation after checking for gas leakage.
CAUTION
Be sure to insulate local piping all the way into the pipe connections inside the machine. Exposed piping may
cause condensation or burns on contact.
DRAIN PIPING WORK
WARNING Install the drain pipe as shown below and take measures against condensation, improperly
installed piping may result in water leaks and eventually wet furniture and belongings.
(1) Installing
• Route the pipes so as to ensure that drainage can occur with no problems. (Fig. 10)
• Employ piping with either the same diameter or with the diameter larger
(excluding the raised section) than that of the connecting pipe (PVC
pipe, nominal diameter 25mm, outside diameter 32mm).
• Keep the drain pipe short and sloping downward at a gradient of
at least 1/100 to prevent air pockets from forming.
• To prevent the drain pipe from sagging, secure the pipe every
1 to 1.5m.
• Use the provided drain hose 2 and clamp 1 . (Fig. 11)
Tighten the clamp rmly.
• Insulate the metal clamp with a eld supplied sealing pad (Fig. 11)
• Insulate the drain hose inside the building.
• As a safety measure, please use a safety drain tray (eld supplied) and drain separately.
• Insulate drain pipe using piping thermal insulation to prevent condensate dripping during humid conditions.
Note
• To ensure no excessive pressure is applied to the included drain hose 2 , do not bend or twist when
installing. (This may cause leakage).
CAUTION
Drain piping connections.
Do not connect the drain piping directly to sewage pipes. Drainage must conform to local plumbing regulations.
The vapour in the sewage might enter the indoor unit through the drain pipes and corrode the
heat exchanger or escape into the room.
WRONG CORRECT
Fig. 10

10
Ducted Air Conditioners
Installation Manual
NOTE:
• If installing central drain piping,
install according to Fig. 12.
(2) After the piping work is nished, check that
the drainage ows smoothly.
• Pour approximately 1 Litre of water
gradually into the drain tray and check
drainage ow. (Fig. 13)
WHEN ELECTRIC WIRING WORK IS FINISHED
• Check drainage ow during COOLING OPERATION, explained under the section entitled TEST OPERATION.
ELECTRICAL WIRING WORK
• All eld supplied parts, materials and electric works must conform to local codes. (ie. AS/NZS 3000)
• Use copper wire only.
• For electric wiring work, refer to the “WIRING DIAGRAM” label attached to the electrical box cover.
• For remote controller wiring details, refer to page 13 of this manual for BRC1E63 or the installation manual
supplied with the chosen remote controller.
• All wiring must be performed by an authorised electrician in accordance with local codes. (ie. AS/NZS 3000)
• A circuit breaker capable of shutting down power supply to the entire system must be installed.
• Select and install the power supply wiring and transmission wiring in accordance with local standards and
regulations. The maximum current of the outdoor and indoor unit are shown on each name plate.
• Ensure that the air conditioner is e󰀨ectively earthed.
NOTE: 1. Shield wire materials may be used for transmission wiring, and must comply with EMI (AS/NZS 3548)
or (CISPR 14).
2. Use double insulation wire for the remote controller (Sheath thickness is 1mm or more) or run
wires through a wall or conduit so that the user cannot come in contact with them.
3. Run indoor to outdoor transmission wiring and indoor power supply wiring through a conduit to
protect against external forces. Feed the conduit through the wall together with refrigeration piping.
Metal clamp 1
(provided)
(field supplied)
Large sealing pad
Drain hose 2
4mm or less Tape (white) (provided)
Metal clamp 1
Drain hose 2
Bottom of the unit
Slope
Safety drain tray
(field supplied)
100mm
or more
Fig. 11
Fig. 12
Fig. 13

11 Ducted Air Conditioners
Installation Manual
Method of wiring. - Refer to Fig. 14 for the wiring details.
NOTE: All wires must be wired through bushes at the bottom of the electrical box.
• Remove the electrical box cover as indicated.
• Power and earth wiring.
Connect the power supply wires to terminals (L, N). and earth wire to terminal .
Secure the cable to the anchor point below the terminal block. Do not connect the N-line with the
earth terminal.
• Wiring between indoor and outdoor units.
Connect the transmission wire between the indoor and outdoor unit using terminals (1, 2, 3).
Secure the cable to the anchor point below the terminal block.
• Remote controller cords.
Connect the cords to the remote controller terminals - (P1, P2 No polarity) and the shield wire
(if applicable) to the shielding earth terminal .
Secure the cable to the anchor point below the terminal block.
• Replace and secure electrical box cover.
Fig. 14
FDYAN50-160AV1
FDYA71-160AV1

12
Ducted Air Conditioners
Installation Manual
PRECAUTIONS
Precaution for wiring on site
When connecting the indoor unit to a single phase of 3 phase power supply, give consideration to the other
electrical equipment connected to the main breaker and select the phase (L1, L2, L3) so that the current (or
voltage) unbalance does not occur.
If current unbalance occurs, the phase current of the compressor may become unbalanced and there is a risk of
protective device actuating or compressor breakdown.
• Do not clamp remote controller cords together with wires connecting the units. Doing so may cause malfunction.
• Remote controller cords and wires connecting the units should be located at least 50mm from other electric
wires. Not following this guideline may result in malfunction due to electrical noise.
Observe the notes mentioned below when wiring to the power supply terminal block. Precautions to be taken for
power supply wiring.
(Use a round crimp-style terminal for connection to the power supply terminal block. (Fig. 15) In case it cannot be
used due to unavoidable reasons, be sure to observe the following instructions.)
• Do not connect wires of di󰀨erent gauge to the same power supply terminal. (Fig. 16)
(Looseness in the connection may cause overheating.)
• When connecting wires of the same gauge, connect them according to the gure below.
• Make certain that prescribed wires are used, carry out complete connections, and secure the wires so that
outside forces are not applied to the terminals.
CAUTION
• After connecting the wires, be sure that no pressure is applied to the wire connections by using cable ties (eld
supplied) and securing them to the anchor points. Also, when wiring, make sure the cover of the terminal box
ts snugly by arranging the wires neatly and attaching the terminal box cover rmly. When attaching the terminal
box cover make sure no wires get caught under the edges. Ensure that all the cables pass under the o󰀨set
section of the electrical box cover.
• Make sure the remote control cord, the wiring between the units, and other electrical wiring do not pass through
the same locations outside the unit, separating them by at least 50mm, otherwise electrical noise (external
static) could cause incorrect operation of the unit or damage.
WIRING EXAMPLE for BRC1E63 only
(For the wiring of outdoor units, refer to the installation manual attached to the outdoor unit.)
Conrm the system type.
• Single phase pair type: 1 remote controller controls 1 indoor unit (standard system). (Fig. 17)
• 2 remote controller control: 2 remote controller controls 1 indoor unit. (Fig. 18)
• Group control: 1 remote controller controls up to 16 indoor units (All indoor units operate according to the
remote controller). (Fig. 19)
Round crimp-style
terminal
Electric wire
CORRECT WRONG WRONG
Connect wires of
the same gauge to
both sides
Do not connect
wires of the same
gauge to one side
Do not connect
wires of different
gauges
Fig. 15
Fig. 16

13 Ducted Air Conditioners
Installation Manual
NOTE: 1. All transmission wiring except for the remote controller wires must match the terminal symbol.
2. If using shielded wire for transmission wiring ground the shield of the shield wire to at the
grounding screw of the remote controller cord grounding terminal inside the control box.
3. For group control remote controller choose the remote controller that suits the indoor unit which has
the most functions (as indicated by the swing ap).
• Only applies when other types of indoor units are used within the group eg. Cassette type.
4. When “Group Control” and “Control by 2 remote controllers” are used, connect the remote controller
with the indoor unit which is at the end. (Fig. 19)
(Do not connect three wires or more to the remote control terminals.)
Main power supply
Isolation switch
Fuse
Outdoor unit
(example)
Indoor unit
P1P2
P1P2
(NOTE 2)
Remote controller 2
(option)
123
NL
123
NL
NL
P1P2
P1P2
Remote controller 1

Main power supply
Isolation switch
Fuse
Outdoor unit
(example)
Indoor unit
P 1P2
P1P2
(NOTE 2)
Remote controller
(option)
NL
NL
NL
Isolation switch
Fuse
NL
Power supply
1
1 2
2 3
3
P1P2
P1P2Remote controller
(option)
P1P2P1P2
(NOTE 2)
P1P2
(NOTE 2)
Remote
controller
(option)
P1P2
Indoor unit Indoor unit Indoor unit
Main power supply
Isolation switch
Fuse
Outdoor unit
(example)
N
Isolation switch
Fuse N
Power supply
N
L
L
NL
Main power supply
Isolation switch
Fuse
Outdoor unit
(example)
N
Isolation switch
Fuse N
Power supply
N
L
NL
Main power supply
Isolation switch
Fuse
Outdoor unit
(example)
N
Isolation switch
Fuse N
Power supply
N
L
NL
1
1 2
2
L
1
1 2
2
L
1
1 2
2
3
3
3
3
3
3
External Switching Device eg. fire trip or timer
(min. contact requirement) 15V DC 10mA
F1F2T1T2
P1P
2
External Switching Device eg. fire trip or timer
(min. contact requirement) 15V DC 10mA
F1F2T1T2
P1P2
External Switching Device eg. fire trip or timer
(min. contact requirement) 15V DC 10mA
F1F2T1T2
P1P2
BRC1E63
Group Control (Only Applies to BRC1E63)
Single phase pair type Control by 2 remote controllers
Control by 2 remote controllers
BRC1E63
BRC1E63
Main power supply
Isolation switch
Fuse
Outdoor unit
(example)
Indoor unit
P 1P2
P1P2
(NOTE 2)
Remote controller
(option)
NL
NL
NL
Isolation switch
Fuse
NL
Power supply
1
1 2
2 3
3
BRC1E63
P1P2
P1P2Remote controller
(option)
P1P2P1P2
(NOTE 2)
P1P2
(NOTE 2)
Remote
controller
(option)
P1P2
Indoor unit Indoor unit Indoor unit
Main power supply
Isolation switch
Fuse
Outdoor unit
(example)
N
Isolation switch
Fuse N
Power supply
N
L
L
NL
Main power supply
Isolation switch
Fuse
Outdoor unit
(example)
N
Isolation switch
Fuse N
Power supply
N
L
NL
Main power supply
Isolation switch
Fuse
Outdoor unit
(example)
N
Isolation switch
Fuse N
Power supply
N
L
NL
1
1 2
2
L
1
1 2
2
L
1
1 2
2
3
3
3
3
3
3
P1P2
P1P2Remote controller
(option)
P1P2P1P2
(NOTE 2)
P1P2
(NOTE 2)
Remote
controller
(option)
P1P2
Indoor unit Indoor unit Indoor unit
Main power supply
Isolation switch
Fuse
Outdoor unit
(example)
N
Isolation switch
Fuse N
Power supply
N
L
L
NL
Main power supply
Isolation switch
Fuse
Outdoor unit
(example)
N
Isolation switch
Fuse N
Power supply
N
L
NL
Main power supply
Isolation switch
Fuse
Outdoor unit
(example)
N
Isolation switch
Fuse N
Power supply
N
L
NL
1
1 2
2
L
1
1 2
2
L
1
1 2
2
3
3
3
3
3
3
NOTE 2)
NOTE 2)
Fig. 17 Fig. 18
Fig. 19
Main power supply
Isolation switch
Fuse
Outdoor unit
(example)
Indoor unit
P 1P2
P1P2
(NOTE 2)
Remote controller
(option)
NL
NL
NL
Isolation switch
Fuse
NL
Power supply
1
1 2
2 3
3
Main power supply
Isolation switch
Fuse
Outdoor unit
(example)
Indoor unit
P 1P2
P1P2
(NOTE 2)
Remote controller
(option)
NL
NL
NL
Isolation switch
Fuse
NL
Power supply
1
1 2
2 3
3
Main power supply
Isolation switch
Fuse
Outdoor unit
(example)
Indoor unit
P 1P2
P1P2
(NOTE 2)
Remote controller
(option)
NL
NL
NL
Isolation switch
Fuse
NL
Power supply
1
1 2
2 3
3
(NOTE2)
P1P2
P1P2Remote controller
(option)
P1P2P1P2
(NOTE 2)
P1P2
(NOTE 2)
Remote
controller
(option)
P1P2
Indoor unit Indoor unit Indoor unit
Main power supply
Isolation switch
Fuse
Outdoor unit
(example)
N
Isolation switch
Fuse N
Power supply
N
L
L
NL
Main power supply
Isolation switch
Fuse
Outdoor unit
(example)
N
Isolation switch
Fuse N
Power supply
N
L
NL
Main power supply
Isolation switch
Fuse
Outdoor unit
(example)
N
Isolation switch
Fuse N
Power supply
N
L
NL
1
1 2
2
L
1
1 2
2
L
1
1 2
2
3
3
3
3
3
3
NOTE 2)
P1P2
P1P2Remote controller
(option)
P1P2P1P2
(NOTE 2)
P1P2
(NOTE 2)
Remote
controller
(option)
P1P2
Indoor unit Indoor unit Indoor unit
Main power supply
Isolation switch
Fuse
Outdoor unit
(example)
N
Isolation switch
Fuse N
Power supply
N
L
L
NL
Main power supply
Isolation switch
Fuse
Outdoor unit
(example)
N
Isolation switch
Fuse N
Power supply
N
L
NL
Main power supply
Isolation switch
Fuse
Outdoor unit
(example)
N
Isolation switch
Fuse N
Power supply
N
L
NL
1
1 2
2
L
1
1 2
2
L
1
1 2
2
3
3
3
3
3
3
P1P2
P1P2Remote controller
(option)
P1P2P1P2
(NOTE 2)
P1P2
(NOTE 2)
Remote
controller
(option)
P1P2
Indoor unit Indoor unit Indoor unit
Main power supply
Isolation switch
Fuse
Outdoor unit
(example)
N
Isolation switch
Fuse N
Power supply
N
L
L
NL
Main power supply
Isolation switch
Fuse
Outdoor unit
(example)
N
Isolation switch
Fuse N
Power supply
N
L
NL
Main power supply
Isolation switch
Fuse
Outdoor unit
(example)
N
Isolation switch
Fuse N
Power supply
N
L
NL
1
1 2
2
L
1
1 2
2
L
1
1 2
2
3
3
3
3
3
3
NOTE 2) NOTE 2)

14
Ducted Air Conditioners
Installation Manual
Field Settings
How to Change the Field Settings with the Wired Remote Controller
The following functions of indoor unit can be changed from the remote controller. At the item of installation or
after service inspection / repair, make the local setting in accordance with the following description.
Wrong setting may cause malfunction.
• Setting indoor fan target speed • Setting for T1, T2 input
• Setting air lter sign • Setting for thermostat di󰀨erential
• Setting temperature sensor location • Setting for thermostat sensor in remote
• Indoor fan setting during heating thermo-o󰀨 • Setting for permission level
• Indoor fan setting during cooling thermo-o󰀨 • Setting for home leave function
• Indoor fan setting during heating/cooling
(When optional accessory is mounted on the indoor unit, setting for the indoor unit may be required to change.
Refer to information in the option handbook.)
Wired Remote Controller <BRC1E63>
-1 Press and hold the Cancel button
for 4 seconds or longer.
Service Settings menu is
displayed.
-2 Select Field settings in the
Service Settings menu, and
press Menu/Enter button.
Field settings screen is
displayed.
-3 Highlight the Mode No., and
select desired “Mode No.” by
using “ “ (Down/Up) button.
For the commonly-used eld
setting item, refer to page 14
and 15.
-4 In the case of setting per indoor
unit during group control (When
Mode No. such as 20 , 21 ,
22 , 23 , 25 are selected),
“Indoor unit No.” to be set by
using “ “ (Down/Up) button.
(In case of group setting, this
operation is not needed.)
In case of individual setting
per indoor unit, current settings
are displayed. And, SECOND
CODE NO. “ - ” means no
function.
-5 Highlight SECOND CODE NO. of
the FIRST CONE NO. to be
changed, and select desired
“SECOND CODE NO.” by using
“ “ (Down/Up) button.
Multiple identical mode number
settings are available.
In case of group setting, all of
SECOND CODE NO. which may
be set are displayed as “ * “.
“ * “ is changed to SECOND
CODE NO. to be set.
And, SECOND CODE NO. “ - ”
means no function.

15 Ducted Air Conditioners
Installation Manual
FAN MANUAL SETTING
Daikin FDYA-AV1 Series Ducted Fan Coil units employ a high e󰀩ciency DC Fan Motor operating in combination
with a Daikin proprietary microprocessor based motor management system. The DC Fan Motor contains multiple
motion sensor devices that monitor the motor’s rotation and speed. The output from these devices is constantly
compared against target data in the motor management system which subsequently makes adjustments to the
motor input waveform to maintain the target motor speed.
To match the airow requirements to the individual installation, the target fan motor speed can be commissioned
via the remote control to one of fteen individual settings as described below. The default factory setting is
No. “10” so if you experience excessive airow during post installation checks please follow the eld setting
instructions to set a lower airow.
Please note that any change to the fan motor speed via the method described below is applied across all 3 user
selectable speeds (ie High, Medium, Low).
HOW TO SET FAN AUTOMATIC ADJUSTMENT
-1 Set the controller to “Fan” mode.
-2 Ensure that the unit is Switched o󰀨/
Standby mode.
-3 Press and hold the Cancel button
for 4 seconds or longer until
Field settings appears.
-6 Press Menu/Enter button. Setting
conrmation screen is displayed.
-7 Select Yes and press Menu/Enter
button. Setting details are determined
-8 In the case of multiple setting
changes, repeat “(3)” to “(7)”.
-9 After all setting changes are
completed, press Cancel button twice.
-10 Backlight goes out, and “Connection
under check Please wait for a
moment” is displayed for initialization.
After the initialization, the basic screen
returns.
-3

16
Ducted Air Conditioners
Installation Manual
-4
-5
-6
-4 Press “ “ (Down/Up) button
until Mode 21 appears.
-5 Press “ “ (Right/Left) button
to go to 7-01 .
-6 Change settings to 7-03 by pressing
“ “ (Down/Up) button.
-7 Press Menu/enter to conrm
then select “Yes” to accept changes.
-8 Press Cancel button twice to return
to main display.
Note: The controller will initialize for
the changes made.
-9 Turn on unit to start Automatic Airow Adjustment.
• The LED on the controller should turn on and the indoor unit will run on di󰀨erent rpm for a period of 2-10 minutes.
• When the Indoor unit stops and LED on the controller turns o󰀨, it means that the Automatic Airow Adjustment
is nished.
Note: Meanwhile do not press any button.
-10 To conrm that the Automatic Airow Adjustment is successful do steps 3 to 4.
7-02 should appear, if not set the Automatic Airow Adjustment again.
Note: 1. If the indoor unit does not stop in the period of 10 minutes or 7-02 does not appear, it means that
Automatic Airow Adjustment has failed and need to be set again.
2. If setting the Automatic Airow Adjustment fails again on the second try, the rpm need to be setup
manually.
7-01 Turn OFF Auto Airow Adjustment
7-02 Airow Adjustment complete
7-03 Airow Adjustment Initialization
-11 After conrming that the Automatic Airow Adjustment is successful, normal operation can now commence.
Possible reasons why Automatic Airow Adjustment is failing.
1. External static is too low.
2. Duct may not be stable, this happens when using exible duct and not properly xed in place.
Unit No. Mode
0 21
0-01 1-01 2-01 3---
4-01 5--- 6-04 7-01
8-08 9-08 a--- b---
Unit No. Mode
0 21
0-01 1-01 2-01 3---
4-01 5--- 6-04 7-01 7-03
8-08 9-08 a--- b---

17 Ducted Air Conditioners
Installation Manual
OTHER SETTINGS (Applicable to all models)

18
Ducted Air Conditioners
Installation Manual
CONTROL BY 2 REMOTE CONTROLLERS
• Check for completion of indoor/outdoor units wiring.
• Check for closing of EL. COMPO. BOX cover of indoor and outdoor units before power-on.
-1 Following is displayed after turn
on the power.
“Checking the connection.
Please stand by.”
During above display, backlight
does not light by button operation.
When 1 indoor unit is
controlled by 2 remote
controllers:
Be sure to set sub remote
controller during above display.
Press and hold for 4 seconds or
longer the Mode Selector button
of the remote controller to be set.
When the display is changed from
main remote controller to sub
remote controller, the setting is
completed.
-2 Basic screen is displayed.
Test Operation
• Please refer to the instruction manual for remote controller (BRC1E63)

19 Ducted Air Conditioners
Installation Manual
SEPARATING THE INDOOR UNIT FOR ALL MODELS
WARNING: Power should be disconnected and tagged o󰀨 when performing the following procedure
when the unit is already installed.
ATTENTION: Please separate the indoor unit only when necessary. Please disassemble and reassemble
on a at surface.
Separate the indoor unit in the following order.
1) Carefully remove the Airbox compartment by removing the (4) M6 bolts (Fig.20).
2) Carefully remove the screw on the thermistor clamp and remove the (1) thermistor cables (R1T). (Fig 22).
3) Wrap the thermistor cable and place it neatly into the rubber bush next to the fan deck. (Fig 22).
4) Carefully disconnect the fan motor wiring from the base panel located underneath the reactor box. (Fig 21).
5) Remove the (4) tapping screws located above the fan deck ange. (Fig 21).
6) Remove (4) M8 bolts securing the fan deck to the base panel of the heat exchanger compartment (Fig 21).
7) Carefully separate the fan deck assembly from the base panel, taking care not to damage the fan motor
wiring. (Fig 21).
8) Carefully detach the fan deck. (Fig 21).
•Reassemble the fan deck and heat exchanger compartments in the following order:
9) Carefully place the fan deck back in position to the base panel. (Fig 21).
10) Secure the fan deck onto the heat exchanger compartment with the (4) M8 bolts and (4) tapping screws for the top
ange of the fan deck. (Fig 21).
11) Place the (1) thermistor cable (R1T) back to the side of the fan deck and secure it with the screw and themistor
clamp. (Please make sure that tip of the thermistor is position horizontally opposite to the fan casing. (Fig 22).
12) Reconnect the fan motor connector back to the connector of the base panel.
13) Carefully place the fan deck compartment with (4) M6 bolts, taking care not to damage the fan motor wiring. (Fig 20).
Fig. 21
Fig. 20
Fig. 22