OPERATION MANUAL
SPLIT SYSTEM Air Conditioners
MODELS
Ceiling mounted cassette type (Round flow model)
FCQ50KVEA FCQN71KVEA
FCQ60KVEA FCQN100KVEA
FCQ71KVEA FCQN125KVEA
FCQ100KVEA FCQN140KVEA
FCQ125KVEA
FCQ140KVEA
Thank you for purchasing this Daikin air conditioner.
Carefully read this operation manual before using the air conditioner. It will tell you how
to use the unit properly and help you if any trouble occurs. This manual explains about
the indoor unit only. Use it along with the operation manual for the outdoor unit. After
reading the manual, file it away for future reference.
4
11
2
1
3
figure 1
13
6
5
TEST
7
hr
hr
C
AVAILABLE
NOT
L H
8
10
9
12
20
19
TEST
15
14
16
17
21
18
m
j
RZQ100 · 125 · 140
i
g
d
c
f
e
RZQ
b
figure 3
50 · 60 · 71
h
d
k
a
l
e
n
hr
C
H
figure 2
3
figure 4
CONTENTS
ILLUSTRATIONS.................................................................3
WHAT TO DO BEFORE OPERATION................................4
SAFETY PRECAUTIONS....................................................4
OPERATION RANGE..........................................................6
INSTALLATION SITE ..........................................................6
NAME AND FUNCTION OF EACH SWITCH AND
DISPLAY ON THE REMOTE CONTROLLER.....................7
OPERATION PROCEDURE................................................8
OPTIMUM OPERATION......................................................9
MAINTENANCE (FOR SERVICE PERSONNEL)................9
NOT MALFUNCTION OF THE AIR CONDITIONER.........11
TROUBLE SHOOTING......................................................12
Important information regarding the refrigerant used
This product contains fluorinated greenhouse gases covered
by the Kyoto Protocol.
Refrigerant type : R410A
(1)
value : 1975
GWP
(1)
GWP = global warming potential
Periodical inspections for refrigerant leaks may be required
depending on European or local legislation. Please contact
your local dealer for more information.
WHAT TO DO BEFORE OPERATION
This operation manual is for the following system with standard control. Before initiating operation, contact your dealer
for the operation that corresponds to your system.
Indoor unit
Outdoor unit
d Inlet air
e Discharge air
f Air outlet
g Air flow flap (at air outlet)
h Refrigerant piping, connection electric wire
i Drain pipe
Model name (model name plate)
j
(Inside of suction grille)
Drain pumping out device(built-in)
k
Condensate removed from the room during cooling.
l Air filter (suction grille)
m Suction grille
Ground wire
n
The line passes electricity from the inside unit to the
ground to prevent accidental electrical shock.
SAFETY PRECAUTIONS
To gain full advantage of the air conditioner’s functions and to
avoid malfunction due to mishandling, we recommend that
you read this instruction manual carefully before use.
This air conditioner is classified under “appliances not accessible to the general public”.
• The precautions described herein are classified as
WARNING and CAUTION. They both contain important
information regarding safety. Be sure to observe all
precautions without fail.
WAR NING ....... Failure to follow these instructions
properly may result in personal injury or
loss of life.
Unit with remote
controller
NOTE
• If the unit you purchased is controlled by a wireless remote
controller, also refer to the wireless remote controller’s
operation manual.
If your installation has a customized control system, ask your
dealer for the operation that corresponds to your system.
• Heat pump type
This system provides cooling, heating, automatic, program
dry, and fan operation modes.
TWO REMOTE CONTROLLERS CONTROL
SYSTEM
Confirm the following if your unit is the following control system type.
• Two remote controllers control system
Two remote controllers control one indoor unit.
The unit is individually operated.
NOTE
• Contact your dealer in case of two remote controllers control system.
Names and functions of parts
Refer to figure 2 on page 3
a Indoor unit
b Outdoor unit
Remote controller
c
Depending on the system configuration, the remote
controller is not provided.
CAUTION ........ Failure to observe these instructions
properly may result in property damage
or personal injury, which may be serious depending on the circumstances.
• 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.
WARNING
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.
When the air conditioner is malfunctioning (giving
off a burning odour, etc.) turn off power to the unit
and contact your local dealer.
Continued operation under such circumstances may
result in a failure, electric shocks or fire hazards.
Consult your local dealer about installation work.
Doing the work yourself may result in water leakage,
electric shocks or fire hazards.
Consult your local dealer regarding modification,
repair and maintenance of the air conditioner.
Improper workmanship may result in water leakage,
electric shocks or fire hazards.
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.
4
Beware of 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 dealer for assistance.
The refrigerant within the air conditioner is safe and normally does not leak.
However, in the event of a leakage, contact with a naked
burner, heater or cooker may result in generation of noxious gas.
Do not longer use the air conditioner until a qualified service person confirms that the leakage has been repaired.
Consult your local dealer regarding what to do in
case of refrigerant leakage.
When the air conditioner is to be 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.
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 leaks, electric shock or fire.
Consult your local dealer regarding relocation and
reinstallation of the air conditioner.
Improper installation work may result in leakage, electric
shocks or fire hazards.
Be sure to use fuses with the correct ampere reading.
Do not use improper fuses, copper or other wires as a
substitute, as this may result in electric shock, fire, injury
or damage to the unit.
Be sure to earth the unit.
Do not earth the unit to a utility pipe, lightning conductor
or telephone earth lead. Imperfect earthing may result in
electric shocks or 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 fire.
Consult the dealer if the air conditioner submerges
owing to a natural disaster, such as a flood or
typhoon.
Do not operate the air conditioner in that case, or otherwise a malfunction, electric shock, or fire may result.
Do not start or stop operating the air conditioner
with the power supply breaker turned ON or OFF.
Otherwise, fire or water leakage may result. Furthermore, the fan will rotate abruptly if power failure compensation is enabled, which may result in injury.
Do not use the product in the atmosphere contaminated with oil vapor, such as cooking oil or machine
oil vapor.
Oil vapor may cause crack damage, electric shocks, or
fire.
Do not use the product in places with excessive oily
smoke, such as cooking rooms, or in places with
flammable gas, corrosive gas, or metal dust.
Using the product in such places may cause fire or product failures.
Do not use flammable materials (e.g., hairspray or
insecticide) near the product.
Do not clean the product with organic solvents such
as paint thinner.
The use of organic solvents may cause crack damage to
the product, electric shocks, or fire.
Be sure to use a dedicated power supply for the air
conditioner.
The use of any other power supply may cause heat generation, fire, or product failures
Consult your 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.
CAUTION
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 remove the outdoor unit’s fan guard.
The guard protects against the unit’s high speed fan,
which may cause injury.
Do not place objects that are susceptible to moisture
directly beneath the indoor or outdoor units.
Under certain conditions, condensation on the main unit
or refrigerant pipes, air filter dirt or drain blockage may
cause dripping, resulting in fouling or failure of the object
concerned.
To avoid oxygen depletion, ensure that the room is
adequately ventilated if equipment such as a burner
is used together with the air conditioner.
After prolonged use, check the unit stand and its
mounts for damage.
If left in a damaged condition, the unit may fall and cause
injury.
Do not place flammable sprays or operate spray containers near the unit as this may result in fire.
Before cleaning, be sure to stop unit operation, turn
the breaker off or remove the power cord.
Otherwise, an electric shock and injury may result.
To avoid electric shocks, do not operate with wet
hands.
Do not place appliances that produce naked flames
in places exposed to the air flow from the unit as this
may impair combustion of the burner.
Do not place heaters directly below the unit, as
resulting heat can cause deformation.
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 block air inlets nor outlets.
Impaired air flow may result in insufficient performance or
trouble.
Be sure that children, plants or animals are not
exposed directly to airflow from the unit, as adverse
effects may ensue.
Do not wash the air conditioner with water, as this
may result in electric shocks or fire.
5
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 fire hazards.
Do not put flammable containers, such as spray
cans, within 1 m from the blow-off mouth.
The containers may explode because the warm air output of the indoor or outdoor unit will affect them.
Arrange the drain to ensure complete drainage.
If proper drainage from the outdoor drain pipe does not
occur during air conditioner operation, there could be a
blockage due to dirt and debris build-up in the pipe. This
may result in a water leakage from the indoor unit. Under
these circumstances, stop air conditioner operation and
consult your dealer for assistance.
The appliance is not intended for use by unattended
young children or infirm persons.
Impairment of bodily functions and harm to health may result.
Children should be supervised to ensure that they
do not play with the unit or its remote controller.
Accidental operation by a child may result in impairment
of bodily functions and harm health.
Do not let children play on or around the outdoor
unit.
If they touch the unit carelessly, injury may be caused.
To avoid injury, do not touch the air inlet or aluminium fins of the unit.
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 fire when making contact with electrical parts.
Turn off the power when the unit is not to be used for
long periods of time.
Otherwise, the unit may get hot or catch on fire due to
dust accumulation.
Never touch the internal parts of the controller.
Do not remove the front panel. Touching certain internal
parts will cause electric shocks and damage to the unit.
Please consult your dealer about checking and adjustment of internal parts.
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.
This appliance is not intended for use by persons
(including children) with reduced physical, sensory
or mental capabilities, or lack of experience and
knowledge, unless they have been given supervision
or instruction concerning use of the appliance by a
person responsible for their safety.
Children should be supervised to ensure that they
do not play with the appliance.
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.
COOLING
TURE
21 to 32
14 to 25
INDOOR
15 to 27
INDOOR
15 to 27
INDOOR
HUMIDITY
80% or below
D
B
W
B
D
B
W
B
OUTDOOR
UNIT
50
RZQ
60
71
100
125
140
RQ 71
100
125
140
HEATING
For FCQ50 · 60 · 71 · 100 · 125 · 140KVEA
OUTDOOR
UNIT
50
RZQ
60
71
100
125
140
For FCQN71 · 100 · 125 · 140KVEA
OUTDOOR
UNIT
RQ 71
100
125
140
D B: Dry bulb temperature (°C)
WB: Wet bulb temperature (°C)
The setting temperature range of the remote controller is
16°C to 32°C.
Tips for saving energy
• Be careful not to cool (heat) the room too much.
Keeping the temperature setting at a moderate level
helps save energy.
• Cover windows with a blind or a curtain.
Blocking sunlight and air from outdoors increases the
cooling (heating) effect.
TEMPERA-
D
B
W
B
TEMPERATURE
D
B
TEMPERATURE
D
B
Recommended temperature setting
For cooling 26 to 28 °C
For heating 20 to 24 °C
OUTDOOR
TEMPERA-
TURE
D
–5 to 46
B
OUTDOOR
TEMPERATURE
–15 to 21
–15 to 16
OUTDOOR
TEMPERATURE
–10 to 21
–10 to 16
INSTALLATION SITE
Regarding places for installation
• Is the air conditioner installed at a well-ventilated
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
6
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
h. Filled with acid and/or alkaline steam or vapor
• Is a snow protection measure taken?
For details, consult your dealer.
Regarding wiring
• All wiring must be performed by an authorized electrician.
To do wiring, ask your 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 weight 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.
• 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, consult your dealer.
Regarding drainage of drain pipe
• Is the drain pipe executed to perform complete drainage?
If proper drainage is not carried out from the outdoor drain
pipes during air-conditioning operation, chances are that
dust and dirt are clogged in the pipe. This may result in a
water leakage from the indoor unit. Under such circumstances, stop the operation of the air conditioner, and then
consult your dealer or our service station.
NAME AND FUNCTION OF EACH SWITCH
AND DISPLAY ON THE REMOTE CONTROLLER
Refer to figure 1 on page 3
The illustrations in this operating manual correspond to the
remote control format BRC1C type.
ON/OFF button
1
Press the button and the system will start. Press the
button again and the system will stop.
OPERATION lamp (RED)
2
The lamp lights up during operation.
DISPLAY “ ” (UNDER CENTRALIZED
CONTROL)
3
When this display shows, the system in UNDER
CENTRALIZED CONTROL.
(This is not a standard specification)
DISPLAY “” “” “” “” “” (OPERATION MODE)
4
This display shows the current OPERATION MODE.
Only for cooling models on which “ ” is not displayed.
DISPLAY “ ” (INSPECTION/TEST OPERATION)
5
TEST
When the INSPECTION/TEST OPERATION BUTTON
is pressed, the display shows the system mode is in.
DISPLAY “ ” (PROGRAMMED TIME)
6
This display shows PROGRAMMED TIME of the sys-
hr
hr
tem start or stop.
DISPLAY “ ” (SET TEMPERATURE)
7
C
This display shows the set temperature.
DISPLAY “ ” (FAN SPEED)
8
LH
The display shows the fan speed: “LOW” or “HIGH”.
DISPLAY “ ” (AIR FLOW FLAP)
9
Refer to page 8.
DISPLAY “ ” (TIME TO CLEAN AIR FILTER)
10
Refer to page 9.
DISPLAY “ ” (DEFROST/HOT START)
Refer to page 8.
11
“ ” is not displayed when the unit is in cooling only
mode.
NON-FUNCTIONING DISPLAY
If that particular function is not available, pressing the
12
button may display the words “NOT AVAILABLE” for a
few seconds.
TIMER MODE START/STOP button
13
Refer to page 9.
TIMER ON/OFF button
14
Refer to page 9.
INSPECTION/TEST OPERATION button
This button is used only by qualified service persons
15
for maintenance purposes.
Do not use it in normal operation.
PROGRAMMING TIME button
16
Use this button for programming “START and/or
STOP” time.
TEMPERATURE SETTING button
17
Use this button for SETTING TEMPERATURE of the
thermostat.
FILTER SIGN RESET button
18
Refer to page 11.
FAN SPEED CONTROL button
19
Press this button to select the fan speed, LOW or
HIGH, of your choice.
OPERATION MODE SELECTOR button
20
Press this button to select OPERATION MODE.
AIR FLOW DIRECTION ADJUST button
21
Refer to page 8.
NOTE
• For the sake of explanation, all indications are shown on
the display in figure 1 on page 3 contrary to actual running situations.
7
OPERATION PROCEDURE
Refer to figure 1 on page 3
• Operation procedure
Read the operation manual attached to the remote controller.
• To protect the unit, turn on the main power supply switch 6
hours before operation.
• If the main power supply switch is turned off during operation, operation will restart automatically after the power
turns back on again.
COOLING · HEATING · AUTOMATIC · FAN AND
PROGRAM DRY Operation
Operate in the following order.
1.
Press OPERATION MODE SELECTOR button several
times and select the OPERATION MODE of your choice
as follows.
COOLING Operation ................................ “ ”
HEATING Operation ................................. “ ”
AUTOMATIC Operation ............................ “ ”
• In this operation mode, COOL/HEAT changeover is
automatically conducted.
FAN Operation ...........................................“ ”
DRY Operation ..........................................“ ”
• The function of this program is to decrease the
humidity in your room with the minimum temperature
decrease.
• Micro computer automatically determines TEMPERATURE and FAN SPEED.
• This system does not go into operation if the room
temperature is below 16°C.
Refer to figure 3 on page 3
2. Press ON/OFF button.
OPERATION lamp lights up and the system starts
OPERATION.
ATTENTION:
• Do not turn OFF power immediately after the unit stops.
Then, wait no less than 5 minutes. Water is leaking or
there is something else wrong with the unit.
• When the operation is started again immediately after being
stopped, when the operation mode is changed over, or when
the TEMPERATURE SETTING button is pressed then
returned soon, the air conditioner will start the operation
automatically about 5 minutes later (because the air conditioner is controlled so that excessive load is not applied).
Characteristics of the heating operation
(1) DEFROST OPERATION
• As the frost on the coil of an outdoor unit increase,
heating effect decreases and the system goes into
DEFROST OPERATION.
• The indoor unit fan stops and the remote controller displays shows “ ” (DEFROST/HOT START).
• After 6 to 8 minutes (maximum 10 minutes) of
DEFROST OPERATION, the system returns to HEATING OPERATION.
(2) HOT START
• In order to prevent cold air from blowing out of an
indoor unit at the start of heating operation, the indoor
fan is automatically stopped. The display of the remote
controller shows “ ” (DEFROST/HOT START).
(3) OPERATION START
• For ordinary heating, it will take longer for the room
temperature to reach the set temperature than with
cooling. We therefore recommend starting the unit
ahead of time using the timer operation.
ADJUSTING THE AIR FLOW DIRECTION
• Press the AIR FLOW DIRECTION button to adjust the air
flow angle.
ADJUSTMENT
3. Press TEMPERATURE SETTING button and program
the setting temperature.
Each time this button is pressed, setting temperature rises 1°C.
Each time this button is pressed, setting temperature lowers 1°C.
NOTE
• Set the temperature within the operation range shown in
the table on page 6.
• The temperature cannot be set in the fan operation.
4. Press FAN SPEED CONTROL button.
High or Low fan speed can be selected.
NOTE
• In the heating operation, the fan stops during defrosting or
at startup. It does not indicate any abnormality.
5. Press AIR FLOW DIRECTION ADJUST button.
Refer to page 8 for details.
STOPPING THE SYSTEM
6. Press ON/OFF button once again.
• OPERATION lamp goes off, and the system stops
OPERATION.
• The fan may keep on running for about 1 minute after
the heating operation stops.
(To start the next operation smoothly.)
Up and down adjustment
1. Press the AIR FLOW DIRECTION ADJUST button to
select the air direction as shown below.
The AIR FLOW FLAP display swings
as shown left and the air flow direction
continuously varies.
swing
(Automatic swing setting)
Press AIR FLOW DIRECTION
ADJUST button to select the air
direction of your choice.
The AIR FLOW FLAP display stops
swinging and the air flow direction is
fixed.
(Fixed air flow direction setting)
8
MOVEMENT OF THE AIR FLOW FLAP
For the following conditions, micro computer controls the air
flow direction so it may be different from the display.
Operation
mode
Operation
conditions
Operation mode include automatic operation.
The air flow direction can be adjusted in either of the following
ways.
• Automatic
The air flow flap adjusts its position itself.
• Fixed air flow direction
The air flow direction can be fixed by the user.
<Automatic> <Fixed air flow direction>
ATTENTION:
• The movable limit of the flap is changeable. Contact your
Daikin dealer for details.
• Avoid operating in the horizontal direction “ ” which
may cause dew or dust to settle on ceiling.
Cooling Heating
• When room temperature is lower
than the set temperature
• When operating
continuously at
horizontal air
flow direction
• When room temperature is higher than the
set temperature
• At defrost operation
PROGRAM TIMER Operation
Operate in the following order.
• The timer is operated by the following two ways.
Programming the stop time ( )...............................
The system stops operating after the time setting has
elapsed.
Programming the start time ( )................................
The system starts operating after the time setting has
elapsed.
• The timer can be programmed for a maximum of 72 hours.
• The start and the stop time can simultaneously be
programmed.
Refer to figure 4 on page 3
1. Press the TIMER MODE START/STOP button several
times and select the mode on the display.
The display flashes.
For setting the timer stop .........“ ”
For setting the timer start......... “ ”
2. Press the PROGRAMMING TIME button and set the
time for stopping or starting the system.
When this button is pressed, the time advances
by 1 hour.
When this button is pressed, the time goes
backward by 1 hour.
3. Press the TIMER ON/OFF button.
The timer setting procedure ends.
The display “ or ” changes from flashing
light to a constant light.
NOTE
• When setting the timer Off and On at the same time,
repeat the above procedure (from 1 to 3) once again.
• After the timer is programmed, the display shows the
remaining time.
• Press the TIMER ON/OFF button once again to cancel
programming. The display vanishes.
For example:
When the timer is programmed to stop
the system after 3 hours and start the
system after 4 hours, the system will
stop after 3 hours and then 1 hour later
the system will start.
OPTIMUM OPERATION
Observe the following precautions to ensure the system operates.
• Adjust the room temperature properly for a comfortable
environment. Avoid excessive heating or cooling.
• Prevent direct sunlight from entering a room during cooling
operation by using curtains or blinds.
• Ventilate the room regularly.
Using the unit for long periods of time requires attentive
ventilation of the room.
• Keep doors and windows closed. If the doors and windows
remain open, room air will flow out and cause to decrease
the effect of cooling and heating.
• Do not place other heaters directly below the indoor unit.
They may deform due to the heat.
• Never place objects near the air inlet and the air outlet of
the unit. It may cause deterioration in the effect or stop in
the operation.
• Turn off the main power supply switch when it is not used
for long periods of time. When the main power supply
switch is turned on, some watts of electricity is being used
even if the system is not operating. Turn off the main power
supply switch for saving energy. When reoperating, turn on
the main power supply switch 6 hours before operation for
smooth running (Refer to MAINTENANCE).
• When the display shows “ ” (TIME TO CLEAN AIR
FILTER), ask a qualified service person to clean the filter
(Refer to MAINTENANCE).
• Fully use the function of air flow direction adjust.
Cold air gathers on the floor, and warm air gathers in the
ceiling.
Set the air flow direction parallel during cooling or dry
operation, and set it downwards during heating operation.
Do not let the air blow directly to a person.
• It takes time for the room temperature to reach the set temperature.
We recommend starting the operation in advance using
timer operation.
MAINTENANCE (FOR SERVICE PERSONNEL)
WARNING
• Only a qualified person is allowed to perform maintenance without daily maintenance.
• Before touching any of connection wirings, be sure to
turn off all power supply switches.
• 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 leaks, electric shock or fire.
9
CAUTION
• Before cleaning, be sure to stop unit operation, turn
the breaker off or remove the power cord.
Otherwise, an electric shock and injury may result.
• Do not wash the air conditioner with water, as this may
result in electric shocks or fire.
• Consult your 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.
• Take care of scaffolding and exercise caution when
working high above ground level.
HOW TO CLEAN THE AIR FILTER
Clean the air filter when the display shows “ ” (TIME TO
CLEAN AIR FILTER).
It will display that it will operate for a set amount of time.
Increase the frequency of cleaning if the unit is installed in a
room where the air is extremely contaminated.
If the dirt becomes impossible to clean, change the air filter.
(For changing air filter, please contact your dealer.)
1. Open the suction grille.
Pull it downward slowly while pressing the buttons provided on two spots.
(Do the same procedure for closing.)
(2) Lift the air filter and remove the holes of the air
filter from the protrusions on the upper side of
the grille. (Both left and right sides.)
Lift
Protrusions
on grille
Air filter
3. Clean the air filter.
Use vacuum cleaner A) or wash the air filter with water
B).
A) Using a vacuum cleaner
B) Washing with water
When the air filter is very dirty,
use soft brush and neutral
detergent.
Holes
Protrusions
on grille
Fig. 1
2. Remove the air filter.
Perform the operation in the order (1) and (2).
Fig. 2
(2)
(1)
(1) Pull the ends of the air filter down and remove
the holes of the air filter from the grille protrusions.
(Both left and right sides.)
Remove water and dry in the shade.
NOTE
• Do not wash the air conditioner with hot water of more than
50°C, as doing so may result in discoloration and/or deformation.
• Do not expose it to fire, as doing so may result in burning.
4. Fix the air filter.
Refer to item No. 2.
5. Shut the suction grille.
Slowly push up the suction grille, and then securely hook
it onto the decoration panel while pushing the two knobs.
NOTE
• The strings may be caught when the suction grille is
closed. Before closing the suction grille, ensure that the
strings are not getting out from the side of the suction
grille.
Ye s N o
String
String is getting
Suction grille
6. After turning on the power, press FILTER SIGN
RESET button.
The “TIME TO CLEAN AIR FILTER” display vanishes.
out from the
suction grille.
10
Air filter Holes
Protrusions
on grille
HOW TO CLEAN AIR OUTLET AND OUTSIDE
PAN ELS
• Clean with soft cloth.
• When dirt will not come off, remove it with a cloth wrung
out of mild detergent diluted with water, and then wipe with
a dry cloth.
• When the flap is extremely contaminated, remove it as
below and clean or exchange it.
(For changing the flap, please contact your dealer.)
NOTE
• Do not use gasoline, benzene, thinner, polishing powder,
liquid insecticide. It may cause discoloring or warping.
• Do not let the indoor unit get wet. It may cause an electric
shock or a fire.
• Do not scrub firmly when washing the blade with water.
The surface sealing may peel off.
• Do not use water or air of 50°C or higher for cleaning air filters and outside panels.
HOW TO CLEAN THE SUCTION GRILLE
1. Open the suction grille.
Push it downward slowly while pressing the buttons provided on two spots. (Follow the same procedure for closing.)
Fig. 3
2. Remove the strings of the suction grille.
Remove the two strings from the holding parts on the
panel main body to which the strings are attached.
Holding part
String
3. Detach the suction grille.
Open the suction grille 45 degrees and lift it upward.
Fig. 4
• Do not expose the suction grille to fire, as doing so may
result in burning.
6. Reattach the air filter.
Refer to “HOW TO CLEAN THE AIR FILTER”.
(Refer to Fig. 2)
7. Reattach the suction grille.
Refer to item No. 2.
8. Fit the string of the suction grille.
Fit in the reverse order of the procedure 2.
9. Close the suction grille.
Refer to item No. 1.
START UP AFTER A LONG STOP
Confirm the following.
• Check that the air inlet and outlet are not blocked.
Remove any obstacle.
• Check if the earth is connected.
Might there be a broken wire somewhere?
Contact your dealer if there are any problems.
Clean the air filter and outside panels.
• After cleaning the air filter, make sure to attach it.
Turn on the main power supply switch.
• The display on the remote controller will be shown when
the power is turned on.
• To protect the unit, turn on the main power switch at least
6 hours before operation.
WHAT TO DO WHEN STOPPING THE SYSTEM FOR
A LONG PERIOD
Turn on FAN OPERATION for a half day and dry the unit.
• Read the operation manual attached to the remote controller.
Cut off the power supply.
• When the main power switch is turned on, some watts of
electricity is being used even if the system is not operating.
Turn off the main power supply switch for saving energy.
• The display on the remote controller will vanish when the
main power switch is turned off.
Clean the air filter and the exterior.
• Be sure to replace the air filter to its original place after
cleaning. Refer to “MAINTENANCE”.
Catch
Grappling hook
4. Detach the air filter.
Refer to “HOW TO CLEAN THE AIR FILTER”.
(Refer to Fig. 2)
5. Clean the suction grille.
Wash with a soft bristle brush and
neutral detergent or water, and dry
throughly.
• When very grimy
Directly apply the type of detergent
used for claning ventilation fans or ovens, wait 10 minutes, and then rinse with water.
NOTE
• Do not wash the suction grille with hot water of more than
50°C, as doing so may result in discoloration and/or deformation.
NOT MALFUNCTION OF THE AIR CONDITIONER
The following symptoms do not indicate air conditioner malfunction.
I. THE SYSTEM DOES NOT OPERATE
• The system does not restart immediately after the ON/
OFF button is pressed.
If the OPERATION lamp lights, the system is in normal
condition.
It does not restart immediately because a safety device
operates to prevent overload of the system. After 3 minutes, the system will turn on again automatically.
• The system does not restart immediately when TEMPERATURE SETTING button is returned to the former
position after pushing the button.
If the OPERATION lamp lights, the system is in normal
condition.
It does not restart immediately because a safety device
operates to prevent overload of the system. After 3 minutes, the system will turn on again automatically.
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• The system does not start when the display shows
“ ” (UNDER CENTRALIZED CONTROL) and
it flashes for a few seconds after pressing an operation button.
This is because the system is under centralized control.
Flashes on the display indicates that the system cannot be
controlled by the remote controller.
• The system does not start immediately after the power
supply is turned on.
Wait 6 hours until the micro computer is prepared for operation.
• The outdoor unit is stopped.
This is because the room temperature has reached the set
temperature. The indoor unit switches to fan operation.
Cooling operation (automatic cooling operation): Lower
the set temperature.
Heating operation (automatic heating operation): Raise
the set temperature.
The operation starts after a while when the system is in
normal condition.
• The remote controller displays “ ”, and air discharge stops.
This is because the system automatically switches to
DEFROST operation to prevent a decrease in heating
capacity when frost on the outdoor unit increases.
After 6 to 8 minutes (maximum 10 minutes), the system
returns to its original operation.
II. WHITE MIST COMES OUT OF A UNIT
• When humidity is high during 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 dealer for details on cleaning the unit. This
operation requires a qualified service person.
• When the system is changed over to HEATING OPERATION after DEFROST OPERATION.
Moisture generated by DEFROST becomes steam and
exists.
When the remote controller display shows “ ”,
defrosting operation is being used.
III. NOISE OF AIR CONDITIONERS
• A ringing sound after the unit is started.
This sound is generated by the temperature regulator
working.
It will quiet down after about a minute.
• A continuous flow “Shuh” sound is heard when the
systems is in COOLING or 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 DEFROST
OPERATION.
This is the noise of refrigerant caused by flow stop and
flow change.
During heating operation, the system switches to
DEFROST operation automatically. The remote controller
shows “ ”.
After 6 to 8 minutes (maximum 10 minutes), the system
returns to its original operation.
• A continuous low “Shah” sound is heard when the
system is in COOLING OPERATION or at a stop.
The noise is heard when the drain pump is in operation.
• A “Pishi-pishi” squeaking sound is heard when the
system is in operation or after the stop of operation.
Expansion and contraction of plastic parts caused by temperature change makes this noise.
IV. DUST FROM THE UNITS
• Dust may blow out from the unit after starting operation from long resting time.
Dust absorbed by the unit blows out.
V. THE UNITS GIVE OFF ODORS
The unit absorbs the smell of rooms, furniture, cigarettes,
etc., and then emits them.
If odor is a concern, set the airflow rate to gentle or no airflow when the indoor temperature reaches the set temperature.
For details, contact your Daikin dealer.
VI.THE LIQUID CRYSTAL OF THE REMOTE CONTROL-
LER SHOW “ ”
• It happens immediately after the main power supply
switch is turned on.
This shows that the remote controller is in normal condition.
This continues temporary.
VII.THE AIR FLOW DIRECTION IS DIFFERENT FROM THE
DISPLAY.
• The air direction blades do not swing when Automatic
swing setting.
<When heating operation>
When room temperature is higher than the set temperature,
air is blown horizontally to prevent the cool air from being
blown directly onto anyone in the room.
After a while, air direction blades swings. (Refer to page 8)
• The movement of air direction blades is different from
the display.
<When heating operation>
When room temperature is higher than the set temperature,
air is blown horizontally to prevent the cool air from being
blown directly onto anyone in the room.
After a while, air direction blades changes it according to
the setting. (Refer to page 8)
VIII
.THE UNIT DOES NOT COOL EFFECTIVELY
• Program dry operation.
Program dry operation is designed to lower the room temperature as little as possible.
Lower the room temperature using cooling operation, and
then use program dry operation.
TROUBLE SHOOTING
I. If one of the following malfunctions occurs, take the
measures shown below and contact your dealer.
The system must be repaired by a qualified service person.
WARNING
• When the air conditioner is in abnormal conditions
(smell of something burning, etc), unplug the power
cord from the outlet, and contact your dealer
Continued operation under such circumstances may result
in a failure, electric shock, and fire.
• If a safety device such as a fuse, a breaker or an earth
leakage breaker frequently actuates;
Measure: Do not turn on the main power supply switch.
• If the ON/OFF button does not properly work;
Measure: Turn off the main power supply switch.
• If water leaks from unit.
Measure: Stop the operation.
12
• If the display “ ” (INSPECTION), “UNIT No.”, and the
OPERATION lamp flash and the “MALFUNCTION CODE”
appears.
OPERATION lamp
UNIT No.
C
H
INDOOR UNIT No. in which a
malfunction occurs
INSPECTION
display
MALFUNCTION
CODE
Measure: Notify your dealer and inform him/her of the
display.
II. If the system does not properly operate except for the
above mentioned case, and none of the above mentioned malfunctions is evident, investigate the system
according to the following procedures.
1. If the system does not operate at all.
• Check if there is a power failure.
Wait until power is restored. If power failure occurs during operation, the system automatically restarts immediately after the power supply recovers.
• Check if a fuse has blown.
Turn off the power supply.
• Check if the breaker (earth leakage circuit breaker) is
blown.
Turn the power on with the breaker (earth leakage circuit breaker) switch in the off position.
Do not turn the power on with the breaker (earth leakage circuit breaker) switch in the trip position.
(Contact your dealer.)
• If the doors or the windows are open. Shut doors or
windows to prevent wind from coming in.
• If direct sunlight enters the room (when cooling).
Use curtains or blinds.
• When there are too many inhabitants in the room
(when cooling).
Cooling effect decreases if heat gain of the room is too
large.
• If the heat source of the room is excessive (when cooling).
Cooling effect decreases if heat gain of the room is too
large.
ON
Switch
Trip position
OFF
Breaker
(earth leakage circuit breaker)
2. If the system stops operating after operating the
system.
• Check if the air inlet or outlet of outdoor or indoor unit
is blocked by obstacles.
Remove the obstacle and make it well-ventilated.
• Check if the air filter is clogged.
Ask a qualified service person to clean the air filters
(Refer to MAINTENANCE).
3. The system operates but it does not sufficiently cool
or heat.
• If the air inlet or outlet of the indoor or the outdoor unit
is blocked with obstacles.
Remove the obstacle and make it well-ventilated.
• If the air filter is clogged.
Ask a qualified service person to clean the air filters
(Refer to MAINTENANCE).
• If the set temperature is not proper (Refer to ADJUST-
MENT).
• If the FAN SPEED button is set to LOW SPEED (Refer
to ADJUSTMENT).
• If the air flow angle is not proper (Refer to ADJUSTING
THE AIR FLOW DIRECTION).
13
3P177429-9S EM10A035
(1011) HT
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