Daikin FUA71AVEB9, FUA100AVEB9, FUA125AVEB9 Operation manuals

OPERATION MANUAL

Split system air conditioners

FUA71AVEB9
FUA100AVEB9
FUA125AVEB9

CONTENTS

This appliance is filled with R32.*

(1)

For refrigerant used please refer to the nameplate

of the outdoor unit.

(2)

GWP = global warming potential

required depending on European or local legislation.
Please contact your local dealer for more information.

the refrigerant used

This product contains fluorinated greenhouse gases.
Do not vent gases into the atmosphere.

Refrigerant type

(1)

:

GWP

(2)

value for R410A is

2087.5

GWP

(2)

value for R32 is

675

R410A or R32

NOTICE
Applicable legislation on fluorinated greenhouse

gases requires that the refrigerant charge of the

unit is indicated both in weight and CO

2

equivalent.

Formula to calculate the quantity in CO

2

equivalent tonnes:

GWP value of the refrigerant × total refrigerant
charge [in kg] / 1000

Please contact your installer for more information.

WARNING

1. SAFETY PRECAUTIONS

1. SAFETY PRECAUTIONS............................... 1

2. WHAT TO DO BEFORE OPERATION........... 3

3. OPERATION RANGE..................................... 5

4. INSTALLATION SITE ..................................... 5

5. OPERATION PROCEDURE........................... 6

6. OPERATION CHARACTERISTICS................ 6

7. OPTIMUM OPERATION................................. 8

8. MAINTENANCE

(FOR SERVICE PERSONNEL)...................... 9

9. NOT MALFUNCTION OF THE AIR

CONDITIONER............................................. 12

10. TROUBLESHOOTING.................................. 14

11. DISPOSAL REQUIREMENTS...................... 16

The original instructions are written in English. All
other languages are translations of the original
instructions.

To gain full advantage of the air conditioner’s functions and to
avoid malfunction due to mishandling, please read this
operation manual carefully before use.
This product comes under the term "appliances not accessible
to the general public".

This appliance is intended to be used by expert
or trained users in shops, in light industry and
on farms, or for commercial and household use
by lay persons.

This appliance can be used by children aged
from 8 years and above and persons with
reduced physical, sensory or mental capabilities
or lack of experience and knowledge if they have
been given supervision or instruction
concerning use of the appliance in a safe way
and understand the hazards involved.
Children shall not play with the appliance.
Cleaning and user maintenance shall not be
made by children without supervision.

The appliance is not intended for use by unattended young
children or persons who are incompetent to operate air
conditioners.

It may result in injury or electric shocks.

*Only applicable if this appliance is connected with
the following models of outdoor units:

• This manual classifies the precautions into WARNINGS

and CAUTIONS. Be sure to follow all the precautions
below: They are all important for ensuring safety.

RZAG71, RZAG100, RZAG125, RZAG140,
RZASG71, RZASG100, RZASG125, RZASG140.

Important information regarding

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.

• After reading, keep this manual in a convenient place so

that you can refer to it whenever necessary. If the
equipment is transferred to a new user, be sure also to
hand over the manual.

Periodical inspections for refrigerant leaks may be

1 English

When the air conditioner is malfunctioning (giving off a
burning odor, etc.), turn off the power to the air
conditioner and contact your local dealer.

Continued operation under such circumstances may result
in a failure, electric shocks or a fire.

Consult your local dealer regarding modification,
repair and maintenance of the air conditioner.

Improper workmanship may result in water leakage, electric
shocks or a fire.

Be sure to use fuses with the correct ampere reading.

Do not use improper fuses, copper or other wiring as a
substitute, as this may result in electric shocks, a fire, injury
or damage to the air conditioner.

Consult your local dealer if the air conditioner
undergoes a natural disaster, such as a flood or
typhoon.

Do not operate the air conditioner in that case, or otherwise
a malfunction, electric shocks, or a fire may result.

Start or stop the air conditioner with the remote

CAUTION

controller. Never use the power circuit breaker for this
purpose.

Otherwise, it may cause a fire or water leakage.
Furthermore, if an automatic restart control is provided
against power failure and the power is recovered, the fan
will rotate suddenly and may cause injury.

Do not use the air conditioner in the atmosphere
contaminated with oil vapor, such as cooking oil or
machine oil vapor.

Oil vapor may cause crack damage to the air conditioner,
electric shocks, or a fire.

Do not use flammable materials (e.g., hairspray or
insecticide) near the air conditioner.
Do not clean the air conditioner with organic solvents
such as paint thinner.

The use of organic solvents may cause crack damage to
the air conditioner, electric shocks, or a fire.

Do not use the air conditioner in places with excessive
oily smoke, such as cooking rooms, or in places with
flammable gas, corrosive gas, or metal dust.

Using the air conditioner in such places may cause a fire or
air conditioner failures.

Beware of a fire in case of refrigerant leakage.

If the air conditioner is not operating correctly, i.e. not
generating cool or warm air, refrigerant leakage could be
the cause. Consult your local dealer for assistance. The
refrigerant used for the air conditioner is safe and normally
does not leak. However, if the refrigerant leaks and gets in
contact with a naked burner, heater or cooker, it may
generate hazardous compounds. Turn off the air
conditioner and call your local dealer. Turn on the air
conditioner after the qualified service person makes sure to
confirm that the leakage is repaired.

Do not place objects, including rods, your fingers, etc.,
in the air inlet or outlet.

Injury may result due to contact with the air conditioner’s
highspeed fan blades.

Consult your local dealer regarding cleaning the inside
of the air conditioner.

Improper cleaning may cause breakage of plastic parts,
water leakage and other damage as well as electric shocks.

Be aware that prolonged, direct exposure to cool or
warm air from the air conditioner, or to air that is too
cool or too warm can be harmful to your physical
condition and health.

Consult your local dealer about installation work.

Doing the work yourself may result in water leakage,
electric shocks or a fire.

Contact professional personnel about attachment of
accessories and be sure to use only accessories
specified by the manufacturer.

If a defect results from your own workmanship, it may result
in water leakage, electric shocks or a fire.

Consult your local dealer regarding relocation and
reinstallation of the air conditioner.

Improper installation work may result in leakage, electric
shocks or a fire.

Be sure to earth the air conditioner.

Do not earth the air conditioner to a utility piping, lightning
conductor or telephone earth lead.
Imperfect earthing may result in electric shocks or a fire.
A high surge current from lightning or other sources may
cause damage to the air conditioner.

Be sure to install an earth leakage breaker.

Failure to install an earth leakage breaker may result in
electric shocks or a fire.

Be sure to use a dedicated power supply for the air
conditioner.

The use of any other power supply may cause heat
generation, a fire, or air conditioner failures.

Consult your local dealer regarding what to do in case
of refrigerant leakage.

When the air conditioner is installed in a small room, it is
necessary to take proper measures so that the amount of
any leaked refrigerant does not exceed the concentration
limit in the event of a leakage. Otherwise, this may lead to
an accident due to oxygen depletion.

The appliance shall be stored so as to prevent
mechanical damage and in a well-ventilated room
without continuously operating ignition sources
(example: open flames, an operating gas appliance or
an operating electric heater) and have a room size as
specified in installation manual (only for R32
refrigerant).

Children should be watched so that they do not play
with the indoor unit or its remote controller.

Accidental operation by a child may result in injury or
electric shocks.

Do not allow a child to mount on the outdoor unit or
avoid placing any object on it.

Falling or tumbling may result in injury.

Do not let children play on or around the outdoor unit.

If they touch the unit carelessly, injury may be caused.

Be sure that children, plants or animals are not
exposed directly to airflow from the indoor unit, as
adverse effects may ensue.

Do not place flammable sprays or operate spray
containers near the air conditioner as this may result in
a fire.

Do not wash the air conditioner or the remote
controller with water, as this may result in electric
shocks or fire.

Do not place water containers (flower vases, etc.) on
the indoor unit, as this may result in electric shocks or
a fire.

Do not put flammable containers, such as spray cans,
within 1 m from the air outlet.

The containers may explode because the warm air from the
indoor or outdoor unit will affect them.

Turn off the power when the air conditioner is not used
for long periods of time.

Otherwise, the air conditioner may get hot or catch on a fire
due to dust accumulation.

Do not place objects in direct proximity of the outdoor
unit and do not let leaves and other debris accumulate
around the unit.

Leaves are a hotbed for small animals which can enter the
unit. Once in the unit, such animals can cause
malfunctions, smoke or a fire when making contact with
electrical parts.

Before cleaning, be sure to stop the air conditioner
operation, turn the power circuit breaker off.

Otherwise, an electric shocks and injury may result.

To avoid electric shocks, do not operate with wet
hands.

English 2

Never touch the internal parts of the remote controller.

WARNING

RISK OF ELECTRIC SHOCKS OR A FIRE

CAUTION! DANGER OF ELECTRIC

A

1

2

OUTDOOR

INDOOR

Touching certain internal parts will cause electric shocks
and damage to the remote controller. Consult your local
dealer about checking and adjustment of internal parts.

To avoid oxygen deficiency, ensure that the room is
adequately ventilated if equipment such as a burner is
used together with the air conditioner.

Do not leave the remote controller wherever there is a
risk of wetting.

If water gets into the remote controller there is a risk of
electrical leakage and damage to electronic components.

Watch your steps at the time of air filter cleaning or
inspection.

High-place work is required, to which utmost attention must
be paid.
If the scaffold is unstable, you may fall or topple down, thus
causing injury.

Do not remove the outdoor unit’s outlet side grille.

The grille protects against the unit’s high speed fan, which
may cause injury.

To avoid injury, do not touch the air inlet or aluminum
fins of the air conditioner.

Do not place objects that are susceptible to moisture
directly beneath the indoor or outdoor units.

Under certain conditions, condensation on the unit or
refrigerant piping, air filter dirt or drain blockage may cause
dripping, resulting in fouling or failure of the object
concerned.

Do not place heaters directly below the indoor unit, as
resulting heat can cause deformation.

Do not place appliances that produce naked flames in
places exposed to the airflow from the air conditioner
as this may impair combustion of the burner.

Do not block air inlets nor outlets.

Impaired airflow may result in insufficient performance or
trouble.

Do not use the air conditioner for purposes other than
those for which it is intended.

Do not use the air conditioner for cooling precision
instruments, food, plants, animals or works of art as this
may adversely affect the performance, quality and/or
longevity of the object concerned.

Do not install the air conditioner at any place where
there is a danger of flammable gas leakage.

In the event of a gas leakage, build-up of gas near the air
conditioner may result in a fire.

Carry out drain piping properly to ensure complete
drainage.

If drain piping is not carried out properly, drain will not flow
out. Then, dirt and debris may be accumulated in the drain
piping and may cause water leakage. If it occurs, stop the
air conditioner and call your local dealer for assistance.

• When cleaning the heat exchanger, make sure
to remove the electronic components above (If
they get cleaning agent, there is a risk that the
components will burn out because of insulation
degradation).

• Shut off power supply before work.

• Never open the control box lid for 10 minutes

after shutting off the power supply because
there is residual voltage.

• After opening the control box lid, measure
residual voltage between the points shown in
Fig. 1 on the printed circuit board by the tester
without touching the live part and confirm that
the residual voltage is DC50V or below.

1

C+

C-

X27A

X1M

A1P

2

1 Control box
2 Printed circuit board
3 Measuring points for residual voltage

3

C-

Figure 1

C+

0

-

+

• After power failure, operation will restart
automatically.

2. WHAT TO DO BEFORE OPERATION

This operation manual is for the following systems
with standard control.
Before initiating operation, contact your local dealer

for the operation that corresponds to your system.

• NOTE TO SERVICE PERSONNEL

• When checking the electric components (such

as the inside of the control box, fan motor, drain
pump, etc.), make sure to shut off all power
supply for the air conditioner (including both
indoor and outdoor units).

3 English

A Pair system or simultaneous operation system

NOTE

B Multi system

B

OUTDOOR INDOOR

1

1

NOTE

1 Unit with remote controller

Unit without remote controller (when used as simulta-

2

neous operation)

A Pair system or simultaneous operation system

B Multi system

1 Unit with remote controller

Unit without remote controller (when used as simulta-

2

neous operation)

• Read the operation manual attached to the
remote controller you are using.

• Two remote controllers control system

Two remote controllers control one indoor unit (In
case of group control system, one group of indoor
units).

• Contact your local dealer in case of changing the
combination or setting of group control and two
remote controllers control systems.

• Please do not change the combination and
settings for the group operation and two remote
controllers control systems by yourself, but be
sure to ask your local dealer.

INFORMATION TO IDENTIFY THE MODEL TO WHICH

THE INFORMATION RELATES: FUA125AVEB9

Item

Cooling capacity
(sensible)

Cooling capacity
(latent)

Heating capacity

Total electric power
input

Sound power level
(per speed setting
if applicable)

Contact details

Symbol Value Unit

P

rated, c

P

rated, c

P

rated, h

P

elec

L

WA

DAIKIN INDUSTRIES CZECH
REPUBLIC s.r.o.
U Nové Hospody 1/1155, 301 00
Plzeň Skvrňany, Czech Republic

7.83 kW

4.27 kW

13.50 kW

0.19 kW

65 dB

When using a wireless remote controller, refer to the
operation manual attached to the wireless remote
controller kit.
If your installation has a customized control system,
ask your local dealer for the operation that
corresponds to your system.

• Heat pump type
This system provides COOLING, HEATING,
AUTOMATIC, PROGRAM DRY, and FAN ONLY
OPERATION modes.

• Cooling only type
This system provides COOLING, PROGRAM
DRY, and FAN OPERATION modes.

PRECAUTIONS FOR GROUP CONTROL
SYSTEM OR TWO REMOTE CONTROLLERS
CONTROL SYSTEM

This system provides two other control systems
beside individual control (one remote controller
controls one indoor unit) system. Confirm the
following if your unit is the following control system
type.

• Group control system

One remote controller controls up to 16 indoor
units. All indoor units are equally set.

English 4

Names and functions of parts

d

c

e

h

j

a

2

1

g

b

a

a

a

a

i

f

COOLING [°C]

OUTDOOR
UNIT

RZQ200~250 WB 14~28 ≤80%* DB –5~46

RZQG71~140 WB 12~28 ≤80%* DB –15~50

RZQSG71~140 WB 14~28 ≤80%* DB –15~46

RR71~125 WB 12~28 ≤80%* DB –15~46

RQ71~125 WB 12~28 ≤80%* DB –5~46

TEMPERATUR
E

INDOOR

HUMIDITY

OUTDOOR
TEMPERATURE

OUTDOOR
UNIT

RZAG71~140

RZASG71~140

TEMPERATU
RE

17~38

DB

12~28

WB

20~38

DB

14~28

WB

INDOOR

HUMIDITY

≤80%* DB

≤80%* DB

OUTDOOR
TEMPERATURE

– 20~52

–-15~46

HEATING [°C]

INDOOR
TEMPERATURE

INDOOR
TEMPERATURE

DB 10~27

DB 10~27

Indoor unit

1

Outdoor unit

2

Air discharge

a

Horizontal blade (inside air outlet)

b

Suction grille
(Refer to "MAINTENANCE (FOR SERVICE

c

PERSONNEL)" on page 9)

Air filter (inside suction grille)
(Refer to "MAINTENANCE (FOR SERVICE

d

PERSONNEL)" on page 9)

OUTDOOR UNIT

RZQ200~250 DB 10~27 WB –15~15

RZQG71~140 DB 10~27 WB –20~15.5

RZQSG71~140 DB 10~27 WB –15~15.5

RQ71~125 DB 10~27 WB –10~15

OUTDOOR UNIT

RZAG71~140

RZASG71~140

Air outlet identification mark

()

, , , 

e

Use this mark as a reference for setting the airflow
direction.(only for BRC1E53)

Remote controller (optional part)
The remote controller may not be needed

f

*To avoid condensation and water dripping out the indoor unit.

D B: Dry bulb temperature
WB: Wet bulb temperature

The setting temperature range of the remote controller is
16°C-32°C depends on heating/cooling mode.

depending on the system configuration.

Drain piping

g

Draining device (built-in)
It drains moisture in the room removed during the

h

cooling operation.

Refrigerant piping; Transmission wiring;
Earth wiring (Note)
(Note) It is a wiring to let electricity flow from the

i

Earth wire
Wire to ground from the outdoor unit to prevent elec-

j

trical shocks and fire.

indoor unit to the earth for prevention of
electric shocks or a fire in case of
emergency.

3. OPERATION RANGE

If the temperature or the humidity is beyond the
following conditions, safety devices may work and
the air conditioner may not operate, or sometimes,
water may drop from the indoor unit.

4. INSTALLATION SITE

Regarding places for installation

• Is the air conditioner installed at a well­ventilated place where there are no obstacles
around?

• Do not use the air conditioner in the following
places.

a. Filled with much mineral oil such as cutting oil
b. Where there is much salt such as a beach area
c. Where sulfured gas exists such as a hot-spring

resort

d. Where there are considerable voltage

fluctuations such as a factory or plant
e. Vehicles and vessels
f. Where there is much spray of oil and vapor such

as a cookery, etc.
g. Where there are machines generating

electromagnetic waves

OUTDOOR
TEMPERATURE

OUTDOOR
TEMPERATURE

DB

WB

DB

WB

– 20~24

– 20~18

– 15~21

– 15~15.5

h. Filled with acid and/or alkaline steam or vapor

5 English

• Is a snow protection measure taken?

WARNING

For details, consult your local dealer about snow
protection hoods, etc.

Regarding wiring

• All wiring must be performed by an qualified
personnel.

To do wiring, ask your local dealer. Never do it by
yourself.

• Make sure that a separate power supply
circuit is provided for this air conditioner and
that all electrical work is carried out by
qualified personnel according to local laws
and regulations.

Pay attention to running noises, too

• Are the following places selected?

a. A place that can sufficiently withstand the mass

of the air conditioner with less running noises
and vibrations.

b. A place where the hot wind discharged from the

air outlet of the outdoor unit and the running
noises do not cause a nuisance to neighbours.

• Are you sure that there are no obstacles near
the air outlet of the outdoor unit?

Such obstacles may result in declined
performance and increased running noises.

• If abnormal noises occur in use, stop the
operation of the air conditioner, consult your
local dealer.

Regarding drainage of drain piping

• Is the drain piping carried out properly to
ensure complete drainage?

If drain piping is not carried out properly, dirt and
debris may be accumulated in the drain piping
and cause water leakage. If it occurs, stop the air
conditioner and consult with your local dealer for
assistance.

Prevent hazards due to inadvertent resetting of the
thermal cut-out: this appliance MUST NOT be supplied
through an external switching device, such as a timer,
or connected to a circuit that is regularly turned ON
and OFF by the utility.

5. OPERATION PROCEDURE

Read the installation manual attached to the outdoor
unit and manual for remote controller.
Operating procedure varies with heat pump and
cooling only type. Contact your dealer to confirm
your system type.

• To protect the air conditioner, turn on the main
power switch 6 hours before operation.

• Do not shut off the power supply during seasonal
use of the air conditioner.
This is required in order to activate the air
conditioner smoothly.

• If the main power supply is turned off during
operation, operation will restart automatically
after the power turns back on again.

6. OPERATION CHARACTERISTICS

 CHARACTERISTICS OF THE COOLING

OPERATION (COOLING OPERATION AND
AUTOMATIC COOLING OPERATION)

• If the COOLING OPERATION is used when the

indoor temperature is low, frost adheres to the
heat exchanger of the indoor unit.
This can decrease the cooling capacity.
In this case, the air conditioner automatically
switches to the DEFROST OPERATION for a
while.
During the DEFROST OPERATION, the low fan
speed or a gentle wind is used to prevent the
discharge of melt water.
(The remote controller displays the fan speed that
is set.)

• When the outdoor temperature is high, it takes
some time until the indoor temperature reaches
the set temperature.

 CHARACTERISTICS OF THE HEATING

OPERATION (HEATING OPERATION AND
AUTOMATIC HEATING OPERATION)

START OF OPERATION

• It generally takes a longer time for indoor

temperature of the HEATING OPERATION to
reach the set temperature compared to the
COOLING OPERATION.
It is advisable to start operation in advance using
the TIMER OPERATION.

Perform the following operation to prevent
heating capacity decrease and discharge of cool
air.

AT THE START OF OPERATION AND AFTER
THE DEFROST OPERATION

• A warm air circulating system is employed, and

therefore it takes some time until the entire room
is warmed up after the start of operation.

• The indoor fan runs to discharge a gentle wind
automatically until the temperature inside the air
conditioner reaches a certain level. At this time,

the remote controller displays " ". Leave it
as it stands and wait for a while.
(The remote controller displays the fan speed that
is set.)

English 6

• The airflow direction becomes horizontal to
prevent a draft of cool air to the inhabitants. (The
remote controller displays the set airflow direction
that is set.)

DEFROST OPERATION
(Frost removal operation for the outdoor
unit)

• As the frost on the coil of an outdoor unit increase,

heating effect decreases and the air conditioner
goes into the DEFROST OPERATION.

• The indoor unit fan stops and the remote
controller display shows " ".
With the wireless remote controller, the warm air

stops, and the DEFROST OPERATION lamp on
the light receiving unit turn on.
(The remote controller displays the fan speed that
is set.)

• After maximum 10 minutes of the DEFROST
OPERATION, the air conditioner returns to the
HEATIN G OP E RATI ON.

• The airflow direction becomes horizontal. (The
remote controller displays the airflow direction
that is set.)

• During or after the DEFROST OPERATION, white
mist comes out from the air inlet or outlet of the air
conditioner.
(Refer to "WHITE MIST COMES OUT OF THE

AIR CONDITIONER" on page 13.)

• A hissing and "Shuh" sound may be heard during

this particular operation.

Regarding outside air temperature and
heating capacity

• The heating capacity of the air conditioner

declines as the outside air temperature falls.
In such a case, use the air conditioner in
combination with other heating systems.
(When a combustion appliance is used, ventilate
the room regularly.)
Do not use the combustion appliance where the
air from the air conditioner is blown directly toward
it.

• When the warm air stays under the ceiling and
your feet are cold, we recommend that you use a
circulator (a fan to circulate the air inside the
room).
For details, consult your local dealer.

• When the indoor temperature exceeds the set
temperature, the indoor unit discharges a gentle
breeze (switches to gentle wind). The airflow
direction becomes horizontal. (The remote
controller displays the fan speed and airflow
direction that are set.)

 CHARACTERISTICS OF THE PROGRAM

DRY OPERATION

• This operation lowers the humidity without

lowering the indoor temperature. The indoor
temperature when the operation button is pressed
will be the set temperature. At this time, the fan
speed and temperature are set automatically, so
the remote controller does not display the fan
speed and set temperature.
To efficiently lower the indoor temperature and
humidity, first use the COOLING OPERATION to
lower the indoor temperature, and then use the
PROGRAM DRY OPERATION. When the indoor
temperature is lowered, airflow from the indoor
unit may stop.

• When operating continuously at downward airflow
direction, air blows in the automatic set direction
for a period of time to prevent condensation on
the horizontal blades. (The remote controller
displays the airflow direction that is set.)

• If the PROGRAM DRY OPERATION is used
when the indoor temperature is low, frost forms
the heat exchanger of the indoor unit. In this case,
the air conditioner automatically switches to the
DEFROST OPERATION for a while.
The low fan speed or a gentle wind is used to
prevent the discharge of melt water.

 SOUND PRESSURE LEVEL

• Sound pressure level is less than 70 dB(A).

AIRFLOW DIRECTION ADJUST

Airflow direction adjust can be individually set for
each air outlet. (only BRC1E53)

• Check the air outlet identification mark (refer to
page 5), and use the remote controller to set the
airflow direction. (For details, refer to the
operation manual attached to the remote
controller.)

• The horizontal blades at the air outlet are closed
while the indoor unit stops.

AIRFLOW DIRECTION ADJUST

Press the AIRFLOW DIRECTION ADJUST/
SETTING button to adjust the airflow direction.

1

Up and down adjustment

The AIRFLOW DIRECTION
display swings as shown left and
the airflow direction continuously

swing

varies. (Automatic swing setting)

7 English

Press AIRFLOW DIRECTION

NOTE

ADJUST/SETTING button to
select the air direction of your
choice.

The AIRFLOW DIRECTION
display stops swinging and the
airflow direction is fixed (Fixed
airflow direction setting).

MOVEMENT OF THE HORIZONTAL BLADE

For the following conditions, micro computer
controls the airflow direction so it may be different
from the display.

• COOLING

Operation
mode

• AUTOMATIC

COOLING

• PROGRAM DRY

Air blows in the
automatic set direction
for a period of time to
prevent condensation
on the horizontal
blades.

• When operating

Up and down
direction

continuously at
downward airflow
direction

• When group control is performed on the
simultaneous operation system (twin and triple),
airflow direction cannot be individually set on the
slave units.

1

2

5

1 Indoor unit (Slave)
2 Indoor unit (Master)
3 Outdoor unit
4 Remote controller
5Twin
6Triple

3

4

• HEATING

• AUTOMATIC

HEATING

The airflow direction
becomes horizontal so
that it does not blow
directly toward your
body.

• When room

temperature is
higher than the set
temperature

• When the HEATING

OPERATION starts
or during the
DEFROST
OPERATION (if frost
forms on the outdoor
unit)

1

6

3

Recommended airflow direction positions

Cooling

Heating

We recommend using the airflow in the position
listed above when fixing the airflow direction.

7. OPTIMUM OPERATION

Observe the following precautions to ensure the air
conditioner operates.

• Prevent direct sunlight from the window by using
curtains or blinds during the COOLING
OPERATION.

• Keep doors and windows closed. If the doors and
windows remain open, room air will flow out and
decrease the effect of cooling and heating.

• Never place objects near the air inlet and the air
outlet of the air conditioner. It may decrease the
effect or stop the operation.

• Adjust the room temperature properly for a
comfortable environment. Avoid excessive
heating or cooling.
Not doing so wastes electricity.

• When the display shows " " or "Time to clean
filter", ask a qualified service person to clean the
filters.
(Refer to "MAINTENANCE (FOR SERVICE
PERSONNEL)" on page 9.)
Operating the indoor unit with stained air filter
may decrease capacity or cause malfunction.

• Install TVs, radios, and stereos 1 m or more away
from the indoor unit and remote controller.
Images may become fuzzy and noise may be
generated.

• Turn off the power circuit breaker when it is not in
use for a long period. When the power circuit
breaker is turned on, small amount of power is
consumed even if the air conditioner is not in
operation. (*1)
Turn off the power circuit breaker for saving
energy. When reoperating, turn on the power
circuit breaker 6 hours before operation for
smooth running.
(Refer to "MAINTENANCE (FOR SERVICE
PERSONNEL)" on page 9) (*2)

*1 The consumed power while the outdoor unit is

not in operation depends on the model.

*2 The setting before the power circuit breaker is

cut off is stored. (The timer setting is cleared.)

English 8

• Fully use the function of airflow direction adjust.

WARNING

CAUTION

a

a

Cold air gathers on the floor, and warm air gathers
under the ceiling.
Set the air direction to horizontal during the
COOLING or PROGRAM DRY OPERATION, and
set it downwards during the HEATING
OPERATION.
Do not let the air blow directly to a person.

• Use the TIMER OPERATION effectively.
It takes some time until the indoor temperature
reaches the set temperature. It is advisable to
start operation in advance using the TIMER
OPERATION.

8. MAINTENANCE (FOR SERVICE PERSONNEL)

ONLY A QUALIFIED SERVICE PERSON IS
ALLOWED TO PERFORM MAINTENANCE

• Do not use flammable gas (such as hair
sprays and insecticides) near the air
conditioner.

• Do not wipe the air conditioner with benzine or
thinner.
It may cause cracks, electric shocks or a fire.

• Never put your fingers or rods in the air inlet,
air outlet or horizontal blade. The fan is
rotating at high speed, so you would get
injured.

• Do not wash the air conditioner with water.
It may cause electric shocks or a fire due to
leakage.

• Make sure to turn off the air conditioner when
taking care of the air conditioner and
disconnect the power supply breaker.
Unless the power supply is disconnected, it
may cause electric shocks and injuries.

• When working at a high place, give caution to
your footing.
If the scaffold is unstable, it may cause
injuries due to fall and stumbling.

NOTE

• Do not remove the air filter unless for
cleaning. It may cause failure.

• Do not attach substance (such as paper
towels) other than the specified air filter to the
air inlet. The performance may drop and
cause freeze-up/water leakage.

HOW TO CLEAN THE AIR FILTER

When the remote controller indicates " " or "Time to
clean filter", clean the air filter.

• It indicates after running for a certain time.

NOTE

• You may change the time of indication " " or

"Time to clean filter".

If the indoor unit is used in a space where the air is
more contaminated, ask your local dealer for
solution.

Contamination Time until indication is displayed

Normal

More contaminated

• If it becomes difficult to remove contamination
from the air filter, replace the air filter.
(Air filter for replacement is an optional
accessory)

1. Open the suction grille.

Simultaneously slide the two knobs, slowly down the
suction grille.

aknob

2. Take out the air filter.

Carry out the work in the order mentioned below.

1 Pull the air filter end inclined downward and

unhook the hooking hole of the air filter from
the projection of the grille. (both right and left)

2 Lift the air filter and unhook the hooking hole

of the air filter from the projection at the grille
upper part. (both left and right)

2

11

1

c

d

a Grille upper part projection
b Filter
c Projection
d Air filter end

2500 hours
(equivalent to one year)

1250 hours
(equivalent to a half year)

2

2

b

b

b

a

9 English

3. Clean the filter.

a

b

a

a

Clean the contamination with a vacuum cleaner
or wash it with water.

If the air filter is
extremely
contaminated,
wash it with
neutral detergent
using a soft brush.

After dewatering,
dry the air filter in
the shade.

NOTE

• Do not wash the air filter with water of 50°C or
higher.
It may cause decolorization and deformation.

• Do not heat the filter with fire.
It may cause burning.

4. Attach the air filter.

Attach the air filter in the reverse order
mentioned in step 2.

5. Close the suction grille.

Simultaneously slide the two knobs, slowly lift
the suction grille and securely fix it in the reverse
order mentioned in step 1.

HOW TO CLEAN THE SUCTION GRILLE

1. Open the suction grille.

Simultaneously slide the two knobs, slowly down
the suction grille.

aknob

2. Remove the suction grille.

1 Remove the 4 straps attached to the indoor

unit. (Refer to the figure shown below.)

2 Open the suction grille to 45° and lift it. Then,

unhook it from the place to hook. (3 places)

a

6. Turn off the indication " " or "Time to

clean filter" displayed on the remote
controller after turning on the power.

• For details, refer to the operation manual

attached to the remote controller.
The indication can be turned off whether in
operation or at stop.

NOTE

• When closing the suction grille, the strap is likely

to be sandwiched.

Before closing the suction grille, confirm if the
strap is not sticking out from the side of the

suction grille.

aStrap

b Suction grille

b

Place where the straps are to be hooked (A total of

a

4places)

b Place to hook (3 places)

c Unhook the hook

d Place where the straps are to be hooked

c

d

3. Take out the air filter.

Refer to step 2 of "HOW TO CLEAN THE AIR
FILTER" on page 9.

4. Clean the suction grille.

Wash the suction grille with neutral detergent
using a soft brush and then dewater.

Detergent

English 10

When the suction grille is extremely contaminated

• Spray the detergent for a ventilating fans and
ranges directly to the suction grille, and keep it
under that condition for about 10 minutes.
After that, carefully wash the suction grille with
water.

NOTE

• Do not wash the suction grille with warm
water of 50°C or higher.
It may cause discoloration and deformation.

• When drying the suction grille, do not heat it
with fire. It may cause burning.

• Do not use such as gasoline, benzine, thinner,
polishing powder and liquid insecticide sold
in the market.
It may cause discoloration and deformation.

5. Attach the air filter.

Refer to step 4 of "HOW TO CLEAN THE AIR
FILTER" on page 9.

6. Attach the suction grille.

Attach the suction grille in the reverse order
mentioned in step 2.

7. Close the suction grille.

Simultaneously slide the 2 knobs in the reverse
order mentioned in step 1, slowly lift the suction
grille and securely fix it.

HOW TO CLEAN OUTSIDE PANELS AND
REMOTE CONTROLLER

• Wipe them with a dry soft cloth.

• When the stain cannot be wiped off, dip the cloth

in the neutral detergent diluted with water and
twist the cloth.
After wiping off stain with this cloth, wipe them
with dry cloth.

NOTE

• Do not use such as gasoline, benzine, thinner,
polishing powder and liquid insecticide sold
in the market.
It may cause discoloration and deformation.

• Do not wash them with warm water of 50°C or
higher.
It may cause discoloration and deformation.

 CLEANING BEFORE AND AFTER

SEASONAL USE

WHAT TO DO WHEN START UP AFTER A
LONG STOP

Confirm the following.

• Check that the air inlet and outlet of indoor and

outdoor unit are not blocked.
Remove any obstacle.
Obstacles decrease the fan speed, and cause
performance decrease and breakage of the
devices.

Clean the air filter.

• After cleaning the air filter, make sure to attach it.
(Refer to "MAINTENANCE (FOR SERVICE
PERSONNEL)" on page 9.)

For information on how to install, remove, or clean
a optional sold air filter, refer to the user’s manual
attached to the air filter.

• Turn off the indication " " or "Time to clean
filter" displayed on the remote controller after
turning on the power.

• For details, refer to the operation manual attached
to the remote controller.
The indication can be turned off whether in
operation or at stop.

Turn on the power circuit breaker at least
6 hours before operation.

• This is required in order to activate the air

conditioner smoothly, and to protect the air
conditioner.

• The display on the remote controller will be shown
when the power circuit breaker is turned on.

HEATING OPERATION within 6 hours after
power is supplied to the air conditioner.

Some model series perform the following operation
to protect the devices.
If the HEATING OPERATION is performed within
6 hours after power is supplied to the air conditioner,
the indoor fan stops for about 10 minutes during the
outdoor unit operation to protect the devices.
The above operation is performed not only for
installation, but every time the power circuit breaker
is turned off/on.
For comfortable use, do not turn off the power circuit
breaker during seasonal use of the HEATING
OPERATION.

11 English

WHAT TO DO WHEN STOPPING THE AIR
CONDITIONER FOR A LONG PERIOD

Turn on FAN OPERATION for a half day on the
fine day and dry the indoor unit.

• This can prevent the causes of mould.

Turn off the power circuit breaker.

• During the power circuit breaker is turned on,

some watts of electricity is being used even if the
air conditioner is not operating.
Turn off the power circuit breaker for saving
energy.

• The display on the remote controller will vanish
when the power circuit breaker is turned off.

Clean the air filter.

• Be sure to replace the air filter to its original place

after cleaning.
(Refer to "MAINTENANCE (FOR SERVICE
PERSONNEL)" on page 9.)
For information on how to install, remove, or clean
an optional sold air filter, refer to the user’s
manual attached to the air filter.

NOTE

The inside of the air conditioner may become
contaminated after several seasons of use,
potentially causing performance degradation and
water leakage.
Ask your local dealer for details on cleaning the
inside of the indoor unit. This operation requires a
qualified service person.

9. NOT MALFUNCTION OF THE AIR CONDITIONER

The following symptoms do not indicate air
conditioner malfunction

• HEATING OPERATION within 6 hours after the

power is supplied to the air conditioner.
Some model series perform the following
operation to protect the devices.
If the HEATING OPERATION is performed within
6 hours after the power is supplied to the air
conditioner, the indoor fan stops for about
10 minutes during the outdoor unit operation to
protect the devices.
The above operation is performed not only for
installation, but every time the power circuit
breaker is turned off/on.
For comfortable use, do not turn off the power
circuit breaker during seasonal use of the
HEATIN G OP E RATI ON.

I. THE AIR CONDITIONER DOES NOT

OPERATE

• The air conditioner does not restart
immediately after the ON/OFF button is
pressed.

• The air conditioner does not restart
immediately when TEMPERATURE
SETTING button is returned to the former
position after pushing the button.

If the OPERATION lamp lights, the air
conditioner is in normal condition.
It does not restart immediately because a
safety device operates to prevent overload of
the air conditioner.
After 3 minutes, the air conditioner will start
again automatically.

• The air conditioner does not start when
the display shows " " and it
flashes for few seconds after pressing an
operation button.

This is because the air conditioner is under
centralized control.
Flashes on the display indicates that the air
conditioner cannot be controlled by the
remote controller.

• HEATING OPERATION within 6 hours
after power is supplied to the air
conditioner.

Some model series perform the following
operation to protect the devices.
If the HEATING OPERATION is performed
within 6 hours after power is supplied to the
air conditioner, the indoor fan stops for about
10 minutes during the outdoor unit operation
to protect the devices.
The above operation is performed not only
for installation, but every time the power
circuit breaker is turned off/on.
For comfortable use, do not turn off the
power circuit breaker during seasonal use of
the HEATING OPERATION.

• The outdoor unit stops.

This is because the indoor temperature has
reached the set temperature.
The indoor unit is in the FAN OPERATION.

COOLING OPERATION
(AUTOMATIC COOLING OPERATION):
Lower the set temperature.
HEATIN G OP E RATI ON
(AUTOMATIC HEATING OPERATION):

Raise the set temperature.
The operation starts after a while when the
air conditioner is in normal condition.

English 12

• The remote controller displays " ",
and airflow stops.

This is because the air conditioner
automatically switches to the DEFROST
OPERATION to prevent a decrease in
heating capacity when frost on the outdoor
unit increases.
After maximum 10 minutes, the air
conditioner returns to its original operation.

II. THE OPERATION SOMETIMES STOPS

• The remote controller displays "U4" and
"U5", and the operation stops. However, it
will restart in a few minutes.

This is because communication between the
indoor and outdoor units or indoor units and
remote controllers is shut off and stopped
due to noise caused by devices other than
the air conditioner.
When the electrical noise decreases, the air
conditioner automatically restarts.

III. THE FAN SPEED IS DIFFERENT FROM THE

SETTING

• Pressing the fan speed control button
does not change the fan speed.

During the COOLING OPERATION, the low
fan speed or a gentle wind is used to prevent
the discharge of melt water.
During the DEFROST OPERATION
(HEATING OPERATION), the wind from the
air conditioner stops to prevent air discharge
directly toward your body. After a while, the
fan speed can be changed.
(The fan speed cannot be set for the
PROGRAM DRY OPERATION.)
When the room temperature reaches the set
temperature during the HEATING
OPERATION, the outdoor unit stops and the
indoor unit goes into gentle wind.
It takes some time until the fan speed
changes.
Raise the set temperature.
After a while, the fan speed changes.

IV. THE AIRFLOW DIRECTION IS DIFFERENT

FROM THE SETTING, OR THE AIRFLOW
DIRECTION IS DIFFERENT FROM THE
DISPLAY ON THE REMOTE CONTROLLER

• The horizontal blades do not swing when
the remote controller displays the swing
operation.

<HEATING OPERATION>

This is because the airflow direction is
controlled so it is horizontal direction after
the operation starts or when the indoor
temperature is higher than the set
temperature to prevent air discharge
directly toward your body.
After a while, the swing operation starts.
(Refer to "MOVEMENT OF THE

HORIZONTAL BLADE" on page 8.)

• The airflow direction display of the
remote controller differs from the actual
operation of the horizontal blades.

<COOLING and PROGRAM DRY
OPERATIONS>

When the operation in a downward airflow
direction is set, the airflow direction differs
from the display for a period of time to
prevent condensation on the horizontal
blades.

<HEATING OPERATION>

This is because the airflow direction is
controlled so it is horizontal direction after
the operation starts or when the indoor
temperature is higher than the set
temperature to prevent air discharge
directly toward your body.
After a while, the airflow direction changes
to the set direction.
(Refer to "MOVEMENT OF THE

HORIZONTAL BLADE" on page 8.)

V. HORIZONTAL BLADES DO NOT CLOSE

• The horizontal blades do not close even
when operation stops.

This is because the horizontal blades close
once airflow from the air conditioner stops.
After a while, the horizontal blades close.

VI. WHITE MIST COMES OUT OF THE AIR

CONDITIONER

• When humidity is high during the
COOLING OPERATION. (In oily or dusty
places)

If the inside of an indoor unit is extremely
contaminated, the temperature distribution
inside a room becomes uneven.
It is necessary to clean the inside of the
indoor unit.
Ask your local dealer for details on cleaning
the indoor unit.
This cleaning requires a qualified service
person.
Check the usage environment.

13 English

• When the air conditioner is changed over
to the HEATING OPERATION after the
DEFROST OPERATION and in the
DEFROST OPERATION.

Moisture generated by defrost becomes
steam and exists.
When the remote controller display shows
" ", DEFROST OPERATION is being
used.

VII. NOISE OF AIR CONDITIONERS

• A ringing sound after the indoor unit is
started.

This sound is generated when the motors for
driving the horizontal blades are working.
It will quiet down after about a minute.

• A low continuous flow "Shuh" sound
which is heard when the air conditioner is
in the COOLING or DEFROST
OPERATION or a trickling sound which is
heard when the air conditioner is in the
DEFROST OPERATION.

This is the sound of refrigerant gas flowing
through both indoor and outdoor units.

• A "Shuh" sound which is heard at the
start or immediately after the stop of
operation or which is heard at the start or
immediately after the stop of the
DEFROST OPERATION.

This is the noise of refrigerant caused by flow
stop and flow change.
During the HEATING OPERATION, the air
conditioner switches to the DEFROST
OPERATION automatically.

The remote controller shows " ".
After maximum 10 minutes, the air
conditioner returns to its original operation.

• A continuous flow "Shah" sound is heard
when the air conditioner is in the
COOLING OPERATION or at a stop.

The noise is heard when the drain pump is in
operation.
Liquid removed from the indoor air during the
COOLING OPERATION is discharged.

• A "Pishi-pishi" squeaking sound is heard
when the air conditioner is in operation or
after the stop of operation.

Expansion and contraction of resin parts
caused by temperature change makes this
noise.

VIII. DUST FROM THE INDOOR UNITS

• Dust may blow out from the unit after
starting operation from long resting time.

Dust absorbed by the unit blows out.

IX. THE INDOOR UNITS GIVE OFF ODORS

• During operation

The unit absorbs the smell of rooms,
furniture, cigarettes, etc., and then emits
them.
If odor is a concern, set the fan speed to no
airflow when the indoor temperature reaches
the set temperature.
For details, contact your local dealer.

X. THE AIR CONDITIONER DOES NOT COOL

EFFECTIVELY

• The air conditioner is operating in
PROGRAM DRY OPERATION.

This is because program dry mode operates
so that the indoor temperature decreases as
little as possible.
Lower the indoor temperature using the
COOLING OPERATION, and then use the
PROGRAM DRY OPERATION.
(Refer to "CHARACTERISTICS OF THE

PROGRAM DRY OPERATION" on page 7.)

• Read through characteristics of the
COOLING OPERATION, characteristics of
the HEATING OPERATION, and
characteristics of the PROGRAM DRY
OPERATION on page 7.

10. TROUBLESHOOTING

Please check before requesting a service.

1. If the air conditioner does not operate at all.

• Check if fuse has blown.

Turn off the power supply.

• Check if the power circuit breaker is blown.
If the tab of power circuit breaker is in the OFF
position, turn the power on with the power
circuit breaker switch.
If the tab of power circuit breaker is in the trip
position, do not turn the power on with the
power circuit breaker switch.
Contact your local dealer.

ON

OFF

1

1

Power circuit breaker (earth leakage breaker)

2

Ta b

3

Trip position

• Check if there is a power failure.
Wait until power is restored. If power failure
occurs during operation, the air conditioner
automatically restarts immediately after the
power supply recovers.

2

3

English 14

2. If the air conditioner stops after operating the

WARNING

air conditioner.

• Check if the air inlet or outlet of outdoor or

indoor unit is blocked by obstacles.
Remove the obstacle and make it well­ventilated.
The horizontal blades at the air outlet are
closed while the indoor stops.

• Check if the air filter is clogged.
Ask a qualified service person to clean the air
filters.
A decrease in the airflow volume of the air
conditioner will result and the performance of
the air conditioner will be degraded and power
consumption will increase if the air filter is
clogged with dust or dirt.
In addition, this may cause dew condensation
at the air outlet.
(Refer to "MAINTENANCE (FOR SERVICE

PERSONNEL)" on page 9.)

3. The air conditioner operates but it does not
sufficiently cool or heat.

• Check if the air inlet or outlet of outdoor or

indoor unit is blocked by obstacles.
Remove the obstacle and make it well­ventilated.
The horizontal blades at the air outlet are
closed while the indoor unit stops.
Obstacles decrease the fan speed, and cause
performance decrease and breakage when
discharged air is suctioned.
They cause a waste of electricity, and that
may stop the devices.

• Check if the air filter is clogged.
Ask a qualified service person to clean the air
filters.
A decrease in the airflow volume of the air
conditioner will result and the performance of
the air conditioner will be degraded and power
consumption will increase if the air filter is
clogged with dust or dirt.
In addition, this may cause dew condensation
at the air outlet.
(Refer to "MAINTENANCE (FOR SERVICE

PERSONNEL)" on page 9.)

• Check if the set temperature is not proper.

Set to an appropriate temperature, fan speed,
and airflow direction.

• Check if the FAN SPEED button is set to LOW
SPEED.
Set to an appropriate temperature, fan speed,
and airflow direction.

• Check if the airflow direction is not proper.
Set to an appropriate temperature, fan speed,
and airflow direction.

• Check if the doors or the windows are open.
Shut doors or windows to prevent wind from
coming in.

• Check if direct sunlight enters the room (when
cooling).
Use curtains or blinds.

• When there are too many inhabitants in the
room (when cooling).

• Check if the heat source of the room is
excessive (when cooling).

4. Operation was performed or stopped
although the on/off button was not pressed.

• Are you sure that the ON/OFF timer operation

is not used?
Turn off the ON/OFF timer.
Please refer to operation manual attached to
the remote controller.

• Are you sure that any remote control device is
not connected?
Contact the central control room that directed
the stop.

• Are you sure that the display for centralized
control is not lit?
Contact the central control room that directed
the stop.

If the problem is not solved after checking the
above points, please do not try to repair it
yourself.
In such cases, always ask your local dealer.
At this time, please tell the symptom and
model name (written on the model name
plate).

If one of the following malfunctions occurs, take
the measures shown below and contact your
local dealer.

The air conditioner must be repaired by a qualified
service person.

When the air conditioner is malfunctioning
(giving off a burning odor, etc.), turn off
power to the air conditioner and contact your
local dealer.

Continued operation under such circumstances
may result in a failure, electric shocks or a fire.
Contact your local dealer.

• If a safety device such as a fuse, a power circuit
breaker or an earth leakage breaker frequently
actuates;

Measure: Do not turn on the main power switch.

• If the ON/OFF switch does not properly work;
Measure: Turn off the main power switch.

• If water leaks from the indoor unit.

15 English

Measure: Stop the operation.

Cool

Set to

28

°C

Error : Push Menu Button

Operation

lamp

Contact Info
0123–4567–8900

Indoor Model

–––

/000

Error Code:A1

Outdoor Model

–––

/000

Return

•Screen and the operation
lamp will blink.

•If a warning occurs, only
the error icon will blink
and the operation lamp will
not blink.

•To display the error code and contact infor­mation, press the Menu/Enter button.

•The error code blinks and the contact
address and model name will appear.

•Notify your Daikin dealer of the Error code
and Model name.

11. DISPOSAL REQUIREMENTS

Your product and the batteries supplied
with the controller are marked with this
symbol. This symbol means that electrical
and electronic products and batteries shall

not be mixed with unsorted household
waste. For batteries, a chemical symbol can be printed
beneath the symbol. This chemical symbol means that
the battery contains a heavy metal above a certain con­centration. Possible chemical symbols are:

Pb: lead (>0.004%)
Do not try to dismantle the system yourself: the dismantling
of the product, treatment of the refrigerant, of oil and of other
parts must be done by a qualified installer in accordance with
relevant local and national legislation.
Units and waste batteries must be treated at a specialized
treatment facility for re-use, recycling and recovery.
By ensuring correct disposal, you will help to prevent poten­tial negative consequences for the environment and human
health.
Please contact the installer or local authority for more infor­mation.

English 16

4P465543-1D 2019.02

Copyright 2017 Daikin