Please read this operation manual
before using the air conditioner.
No.0010572002
OPERATION MANUAL
AB282ACBCA
AU282AHBDA
(HBU-28HD03/R1)
CASSETTE AIR CONDITIONER
AB42NACBCA
AU42NAIBBA
(HBU-42HD03/R1)
AB242ACBCA
AU242AHBBA
(HBU-24HE03/R1)
AB36NACBCA
AU36NAIBBA
(HBU-36HC03/R1)
CONTENTS
Cautions
..............................................................................................
Introduction to spare parts
...............................................................
Guide to operation
............................................................................
Maintenance
....................................................................................
Trouble shooting
.................................................................................
1-5
6-8
9-15
16-19
20
CAUTIONS
1
Disposal of the old air conditioner
Before disposing an old air conditioner
that goes out of use, please make sure it's
inoperative and safe. Unplug the air
conditioner in order to avoid the risk of
child entrapment.
It must be noticed that air conditioner
system contains refrigerants, which require
specialized waste disposal. The valuable
materials contained in a air conditioner can
be recycled. Contact your local waste
disposal center for proper disposal of an
old air conditioner and contact your local
authority or your dealer if you have any
question. Please ensure that the pipework
of your air conditioner does not get
damaged prior to being picked up by the
relevant waste disposal center, and
contribute to environmental awareness by
insisting on an appropriate, anti-pollution
method of disposal.
Disposal of the packaging of your new
air conditioner
All the packaging materials employed in
the package of your new air conditioner
may be disposed without any danger to the
environment.
The cardboard box may be broken or cut
into smaller pieces and given to a waste
paper disposal service. The wrapping bag
made of polyethylene and the polyethylene
foam pads contain no fluorochloric
hydrocarbon.
Consult your local authorities for the name
and address of the waste materials collecting
centers and waste paper disposal services
nearest to your house.
Safety Instructions and Warnings
Before starting the air conditioner, read the
information given in the User's Guide
carefully. The User's Guide contains very
important observations relating to the
assembly, operation and maintenance of the
air conditioner.
The manufacturer does not accept
responsibility for any damages that may
arise due to non-observation of the following
instruction.
Damaged air conditioners are not to be
put into operation. In case of doubt, consult
your supplier.
Use of the air conditioner is to be carried
out in strict compliance with the relative
instructions set forth in the User's Guide.
Installation shall be done by professional
people, don't install unit by yourself.
All these valuable materials may be taken to a
waste collecting center and used again after
adequate recycling.
For the purpose of safety, the air
conditioner must be properly grounded in
accordance with specifications.
Always remember to unplug the air
conditioner before opening inlet grill. Never
unplug your air conditioner by pulling on the
power cord. Always grip plug firmly and
pull straight out from the outlet.
CAUTIONS
4. The wiring method should be in line with
the local wiring standard.
5. The power cable and connecting cable are
self-provided. The requirement of the power
cable:
The connecting cable should be
H05RNF 4G 0.75mm.
All the cables shall have got the European
authentication certificate.
6. The breaker of the air conditioner should
be all-pole switch; and the distance between
its two contacts should be no less 3mm. Such
means for disconnection must be
incorporation in the fixed wiring.
7. The waste battery shall be disposed
properly.
8. The indoor unit installation height is at
least 2.5m.
2
All electrical repairs must be carried out
by qualified electricians. Inadequate repairs
may result in a major source of danger for
the user of the air conditoiner.
Do not damage any parts of the air
conditioner that carry refrigerant by
piercing or perforating the air conditioner's
tubes with sharp or pointed items, crushing
or twisting any tubes, or scraping the
coatings off the surfaces. If the refrigerant
spurts out and gets into eyes, it may result
in serious eye injuries.
Do not obstruct or cover the ventilation
grille of the air conditioner. Do not put
fingers or any other things into the
inlet/outlet and swing louver.
Do not allow children to play with the air
conditioner. In no case should children be
allowed to sit on the outdoor unit.
Specifications
The refrigerating circuit is leak-proof.
1. Applicable ambient temperature range:
The machine is adaptive in following
situation
Cooling
Heating
Indoor
Maximum:
Minimum:
D.B / W.B
D.B / W.B
D.B
Outdoor
Maximum:
Minimum:
D.B
D.B
Indoor
Maximum:
Minimum:
D.B
Outdoor
Maximum:
Minimum:
D.B / W.B
Model
H07RN-F
5G 2.5mm
2
AB242ACBCA
AU242AHBBA
(HBU-24HE03/R1)
AB282ACBCA
AU282AHBDA
(HBU-28HD03/R1)
H07RN-F
3G 4.0mm
2
2. If the supply cord is damaged, it must be
replaced by the manufacturer or its service
agentor a similar qualified person.
3. If the fuse on PC board is broken please
change it with the type of T. 3.15A /250VAC.
D.B / W.B
AB36NACBCA
AU36NAIBBA
(HBU-36HC03/R1)
AB42NACBCA
AU42NAIBBA
(HBU-42HD03/R1)
3
CAUTIONS
WARNING!
Carefully read the following information in order to operate the airconditioner correctly.
Below are listed three kinds of Safety Cautions and Suggestions.
WARNING!
CAUTION!
Incorrect operations may result in injuries or machine damages; in some cases may
cause serious consequences.
Incorrect operations may result in severe consequences of death or serious injuries.
INSTRUCTIONS: These information can ensure the correct operation of the machine.
Be sure to conform with the following important Safety Cautions.
The Safety Cautions should be at hand so that they can be checked at any time when needed.
If the conditioner is transferred to the new user, this manual should be as well transferred to the new user.
Otherwise the one
will feel unpleasant
or harm ones' health.
If any abnormal phenomena is found (e. g.
smell of firing), please cut off the power
supply immediately, and contact the dealer
to find out the handling method.
In such case, to continue
using the conditioner will
damage the conditioner,
and may cause electrical
shock or fire hazard.
When need maintenance and repairment,
call dealer to handle it.
Incorrect maintenance and repairment
may cause water
leak, electrical shock
and fire hazard.
switch
off
Please let the dealer be responsible for installing
the conditioner.
Incorrect installation may cause water leak, elec-
trical shock and fire hazard.
Don't put fingers or any other things into the
inlet/outlet and swing louver while the condi-
tioner is in operation.
Because the highspeed
fan is very dangerous
and may cause injuries.
Call the dealer to take measures to prevent the
refrigerant from leaking.
If conditioner is installed in a small room be sure
to take every measure in order to prevent suffoca-
tion accident even in case of refrigerant leakage.
When conditioner is deinstalled or reinstalled
dealer should be responsible for them.
Incorrect installation may cause water leaking,
electrical shock and fire hazard.
Don't blow the human body with the cooling
air too long, and don't let the room temperature decrease too low
either.
Safety cautions
CAUTIONS
4
CAUTIONS!
Conditioner should not be used for any other
purpose other than airconditioning.
Don't use air-conditioner for any other special
purposes, e.g. the preservation and protection
of food, animals, plants,
pecision apparatus as well
as work of art, otherwise
the qualities of these
stuffs may be damaged.
Don't dismantle the outlet of the outdoor unit.
The exposure of fan is
very dangerous which
may harm human beings.
When air-conditioner is co-used with other
heat-radiator the frequent replacement of
room atmosphere should be required.
Inefficient ventilation may cause
suffocation.
After a long time use of air-conditioner the
base should be checked for any damages.
If the damaged base is
not repaired, the unit
may fall down and
cause accidents.
No goods or nobody is permitted to placed on
or stand on outdoor unit.
The falling of goods and
people may cause accidents.
Pets and plants should not be blowed directly
in the air flow.
Otherwise will suffer
damage.
Don't operate the air-conditioner with damp hands.
Otherwise will be shocked.
Only use correctly-typed fuse.
May not use wire or any other
materials replacing fuse, otherwise may cause faults or fire
accidents.
Don't place any burning unit
in the air flow of air-conditioner,
which may cause incomplete
combustion.
No inflammable spray fluid
should be permitted to be
placed or used near to airconditioner otherwise may
cause fire accidents.
Air-conditioner should be
cleaned only after power
supply is cut off to keep
from shock or hurt.
Don't clean air-conditioner
with water.
Otherwise may cause
shock.
Otherwise the poisonous chemicals may settle
in air-conditioner which harm the health of
chemical-allergic people.
When use the fumigating insecticide don't
open air-conditioner.
5
CAUTIONS
WARNING !
CAUTION !
Please ask the dealer or specialist to install, never try by the users themselves. After the installation please
be sure of the following conditions.
Incorrect installation may cause water leaking, shock and fire hazard.
Please call dealer to install the air-conditioner.
Air-conditioner can't be installed in the environment with inflammable gases because the
inflammable gases near to air-conditioner may
cause fire hazard.
Installed electrical-leaking circuit breaker.
Connect earthing wire.
Use discharge pipe correctly to ensure efficient
discharge.
[Location]
[Wiring]
[Operating noise]
It easily cause electrical shock without circuit
breaker.
Air-conditioner should be located in well-vented
and easily-accessible place.
Air-conditioner should not be located in the
following places:
(a) Places with machine oils or other oil vapours.
(b) Seaside with high salt content in the air.
(c) Near to hot spring with high content of sulfide
gases.
(d) Area with frequent fluctuation of voltage e.g.
factory, etc.
(e) In vehicles or ships.
(f) Kitchen with heavy oil vapour or humidity.
(g) Near to the machine emitting electric-magnetic
waves.
(h) Places with acid, alkali vapuor.
TV, radio, acoustic appliances etc are at least 1 m
far away to the indoor unit, outdoor unit, power
Earthing wire should not be connected to the gas pipe, water pipe,
lightning rod or phone line, incorrect earthing may cause shock.
Incorrect pipe use may cause water leaking.
supply wire, connecting wire, pipes, otherwise
images may be disturbed or noises be created.
As required, take measures against heavy snow.
Air-conditioner should be equipped with special
power supply wire.
Chose the following locations:
(a) Capable of supporting air-conditioner weight,
don't increase operating noise and vibration.
(b) Hot vapour from outdoor unit outlet and ope rating noise don't disturb neighbour.
No obstacles around the outdoor unit outlet.
Earth
Installation
INTRODUCTION TO SPARE PARTS
6
Operation
AUTO
%
SET
ROOM
ON OFF
MODE
FAN SWING
TEMP
CLOCK SET
TIMER SLEEP
RESET
F LTER RESET
ON/OFF
Buttons and display of the wire controller.
Cautions:
On cooling only unit, heating
mode is not available.
Note:
The above information is the explanation of
the displayed information therefore varies
with those displayed in actual operation.
CLOCK
Used to set correct time.
TIMER
Used to select
TIMER ON,
TIMER OFF
,
TIMER ON/OFF.
TIME
Used to set clock and
timer setting.
Used for unit start and
stop.
Power ON/OFF
MODE
Used to select AUTO
RUN, COOL, DR
Y,
HEAT and FAN
operation.
FAN SPEED
Used to select fan
speed: LO, MID, HI,
AUT
O
TEMP
Used to select your
desired temp.
SET
Used to confirm Timer
and Clock settings.
SLEEP
Used to select sleep
mode.
AM
PM
AM
PM
INTRODUCTION TO SPARE PARTS
7
%
OPERATING LAMP
Buttons and display of the wire controller.
DRY
COOL
AUTO
FAN SPEED
TIMER ON
TIMER OFF
CLOCK
TEMP.
FAN OPERATION
HEAT
Clock set
When unit is started for the first time, clock should be adjusted as follows:
Press CLOCK button, "AM"or "PM" flashes.
Press or to set correct time. Each press will increase or decrease 1min. If the
button is kept depressed, time will change quickly.
After time setting is confirmed, press SET, "AM "and "PM" stop flashing, while clock
starts working.
Operation
Remote control
SLEEP
INTRODUCTION TO SPARE PARTS
INDOOR UNIT
OUTDOOR UNIT
Drain Hose
Swing fender
Refrigerant pipe
Cable line
Earthing line
Air filter
Outlet
Suction grill
(located in the suction grill)
In cooling operation,to
discharge the water
from inside the room.
Discharge unit (built in)
(located in the outlet)
8
Air inlet
Air outlet
(Inside of unit)
Compressor
Air inlet
(Inside of unit)
Compressor
Air outlet
For series 36, 42 For series 24, 28
9
GUIDE TO OPERATION
MODE
FAN SWING
EMP
CLOCK SET
IMER SEP
ESET
ILER RESET
ON/OFF
1
4
3
2
AM
OM
Fan operation
Enjoy yourself by just a gentle press.
(1) Unit start
(2) Select operation mode
(3) Fan
Press ON/OFF button, unit starts.
Previous operation status appears on display
.
(Not Timer setting)
Power indicator lights up.
Press MODE button. For each press, operation
mode changes as follows:
Unit will run in selected mode.
stop display at " " F
AN.
Press FAN button. For each press, fan speed
changes as follows:
Unit will run at selected fan speed.
Wire controller can memorize settings in each operation mode. To run it next time just select
the operation mode and it will start with the previous setting.
No reselecting is needed.(TIMER ON/OFF needs reselecting)
In F
AN mode, temp. can't be set.
Hints
For cooling only type no " HEAT " function.
AUTO COOL DRY FAN
The air conditioner has the function of POWER
F
AILURE RESUME.
HEAT
LOW
MID HIGH
(4) Unit stop
Press ON/OFF button.
Only time and room temp remains on LCD.
All indicators go out.
V
ertical flap closed automatically.
GUIDE TO OPERATION
10
AUO
MODE
FAN SWNG
EMP
CLCK SET
TMER LEP
ESET
ILT RESET
ON/OFF
1
5
2
3
4
SET
LOW
MID HIGH
AUTO
AUTO RUN, COOL,HEAT and DRY operation
Use COOL in summer.
Use HEA
T in winter.
Use DRY in spring,autumn and in damp climate.
(1) Unit start
(2) Select operation mode
(3) Select temp. setting
Press ON/OFF button, unit starts.
Previous operation status appears on display
(Not
Timer setting). Power indicator lights up.
Press MODE button. For each press, operation mode
changes as follows:
Unit will run in operation mode displayed on LCD.
Stop display at your desired mode.
Every time the button is pressed, temp. setting
increases 1 C.
If button is kept depressed, temp.setting will
increase quickly
.
Every time the button is pressed, temp. setting
decreases 1 C.
If button is kept depressed, temp. setting will
decrease quickly.
Recommendations
Hints
Wire controller can memorize each operation
status.
When starting it next time, just press
ON/OFF button and unit will run in previous
status.
Press FAN button. For each press, fan speed changes
as follows:
(4) Fan speed selection
Unit runs at the speed displayed on LCD.
In HEA
T mode, warm air will blow out after a short
period of time due to cold-draft prevention function.
In DRY mode, when room temp. becomes 2 C higher
than temp. setting, unit will run intermittently at LOW
speed regardless of FAN setting.
Unit will start running to reach the temp. setting
on LCD.
Press ON/OFF button.
Only time and room temp remains on LCD.
All indicators go out.
V
ertical flap closes automatically.
(5) Unit stop
Press TEMP button
AUTO
AUTO COOL DRY F ANHEAT
AM
GUIDE TO OPERATION
11
O
MODE
FAN SWING
TMP
CLOCK SET
EP
FI E ESET
ON/OFF
AM AM
1
2
4
3
SE
TIMER operation
Hints
Set Clock correctly before starting Timer operation.
Y ou can let unit start or stop automatically at following time: Before you wake up in the
morning, or get back from outside or after you fall asleep at night.
Operation mode will be displayed on LCD.
Power indicator lights up.
(2)TIMER mode selection
Press TIMER button to change TIMER mode.
Every time the button is pressed, display changes
as follows:
Select your desired TIMER mode (ON or OFF)
(3)Timer setting
Press TIME button.
Every time the button is pressed, time increases 10min.
If button is kept depressed, time will change quickly
.
Every time the button is pressed, time decreases 10min.
If button is kept depressed, time will change quickly.
Time will be shown on LCD. It can be adjusted within
24hours.
(4)Confirming your setting
After setting correct time, press SET button to confirm
"ON" or "OFF" stops flashing.
T
ime displayed: Unit starts or stops at x hour x min (ON
or OFF).
Timer mode indicator lights up.
TIMER ON/OFF
To cancel TIMER mode
Just press TIMER button several times until TIMER mode disappears.
Wire controller possesses memory function, when use TIMER mode next time, just
press SET
button after mode selecting if timer setting is the same as previous one.
(1)After unit start, select your desired
operation mode.
blank
ON
OFF
ON
OFF
GUIDE TO OPERATION
12
O O
MODE
FAN SING
TEMP
CLOCK SET
R SEEP
FILTE ESET
ON/OFF
PM
AM
1
5
6
4
2
3
SET
blank
ON
OFF
ON
OFF
TIMER ON-OFF
Operation mode will be displayed on LCD.
Power indicator lights up.
Every time the button is pressed, display changes as follows:
Select .
(3)Time setting for TIMER ON
Press TIME button.
(5)Time setting for TIMER OFF
To cancel TIMER mode
Every time the button is pressed, time increases 10min.
If button is kept depressed, time will change quickly
.
Every time the button is pressed, time decreases 10min.
If button is kept depressed, time will change quickly.
Time will be shown on LCD.
It can be adjusted within 24hours.
AM refers to morning and PM to afternoon.
Time displayed: Unit starts at Xhour X min.
After time setting, press TIMER button to confirm.
"ON" stops blinking,
While "OFF" starts blinking.
(4) Time confirming for TIMER ON
Follow the same procedures in "Time setting for
TIMER ON".
(6)Time confirming for TIMER OFF
After time setting, press SET button to confirm
"OFF" stops flashing.
Time displayed: Unit stops at X hour X min.
According to the Time setting sequence of TIMER ON or TIMER OFF, either Start-Stop or Stop-Start can
be achieved.
(1)After unit start, select your desired
operation mode
(2) Press TIMER button to change
TIMER mode
ON
OFF
Just press TIMER button several times until TIMER mode disappears.
GUIDE TO OPERATION
13
At night, before going to bed you
can press down the SLEEP button
on the controller and the airconditioner will run by the
comfortable sleeping mode to
make you sleep more comfortable.
In cooling, dehumidifying mode
In heating mode
Comfortable Sleep
Note:
In
AUTO mode, unit will run in SLEEP function according to the operation mode.
After setting SLEEP function, it is forbidden to calibrate clock.
If the set sleep-time does not reach 8 hours, the unit will stop operation automatically after set
time is complete.
Set "TIMER-OFF" function first, then set SLEEP, and the sleep-set is performance; set TIMERON function first, the sleep function can only be set before TIMER-ON; if set theSLEEP function
first, the TIMER function can not be set.
Press SLEEP button once to make the air conditioner have the previous-set sleep time (first poweron is "1h"), the sleep symbol will appear
. Press time button / , you can choose the time in 1~8
hours. Each press of / , the time increases/reduces 1 hour and "xh" appears in the humidity
setting part, "OFF" appears in "TIMER OFF" display part and timer-off time; press SLEEP button
again to cancel sleep function, the sleep symbol diappears.
SETTING T
SLEEP RUN BEGINS SLEEP RUN STOPS
1 hr
1 hr
3 hrs
about 3 hrs
SHUT DOWN
Heat mode
about 6 hrs
1 hr
1 hr
SLEEP RUN STOPS
SLEEP RUN BEGINS
SETTING T
SHUT DOWN
Cooling mode
MODE
FAN SWING
TEMP
CLOCK SET
TIMER SLEEP
R
FILTER RESET
ON/OFF
AM
SET
O
AM
GUIDE TO OPERATION
14
Adjusting up/down air flow direction
Up/down direction can be adjusted by using the SWING button on the remote controller.
Each time pressing this button, the mode changes in the following sequence.
SWING
No indication
(louver stopped)
Change to the AIRFLOW mode.
SWING
LOUVER STOPPED
Louver moves in upward and
downward directions continuously .
When the LOUVER button is
pushed during SWING mode,
it stops swinging at the just
angle.
Avoid direct air flow to the body for many hours.
Avoid downward blowing opera-tion of cooling mode for many hours.
Do not touch the swing louver during swing operation.
CAUTION
GUIDE TO OPERATION
15
Remote Control:
There is a telecommunication interface for remote control on the control panel of the indoor unit.
After the peripheral equipment have been installed in accordance with the instruction manual of the
selected remote control detector
, the air conditioner will be computerized and controlled from a far-
away place.
When the air conditioner does not operate properly after you have checked the above mentioned
items or when the following phenomenon is observed, stop the operation of the air conditioner
and contact your sales dealer
.
The fuse or breaker often shuts down.
Water drops off during cooling operation.
There is a irregularity in operation or abnormal sound is audible.
When the CHECK lamp flickers, an irregularity has occurred in the air conditioner.
Flickering
E0
Note:
This unit has a function of automatic restart system after recovering power stoppage. Please contact the sales
dealer if it is not required.
The trouble
of the
drainage
system
Content
of defect
E1
The trouble
of the room
temp sensor
E2
The trouble
of the pipe
temp sensor
E3
The trouble
of the outdoor
temp sensor
E4
The trouble of
the outdoor
pipe temp
sensor
E5
The trouble of
the overload
current
E6
The trouble of
the low pressure
pressure of pipe
E8
The trouble of the
main control board
communication
E9
The trouble of the
main control board
outdoor board
communication
Malfunction judgement
Note: Air conditioner has installed detector,in order to add group control function,Can refer to
Centralized Controller installation and operation manual.
Power Failure Compensation (to be applied for a necessary situation):
Setting Method: When the remote controller is on (excluding timer mode and fan mode),
press the "Sleeping" button on the remote controller 10 times within 5
seconds, and after the buzzer rings 4 times, the air conditioner will enter
the state of power failure compensation.
Cancel Method: Press the "Sleeping" button on the remote controller 10 times within 5
seconds, and after the buzzer rings 2 timer, the power failure compensation
mode will be cancelled.
Notes: When a power failure suddenly occurs during the air conditioner is working after the power
failure compensation is set, if the air conditioner will not be
used for a long time, please cut off the
power supply to prevent its operation from being resumed after the power is supplied again, or press
the "Switch On/Off" button after the power comes again.
After the power failure compensation is set, if power failure suddenly occurs while the air conditioner
is working, it will resume the previous working state when the power is supplied again.
MAINTENANCE
16
Appropriate room temperature setting
Don't be too low or too high, to make everybody
in the room feel comfortable.
Otherwise reduce the
efficiency of the airconditioner.
Don't open the doors and windows.
Otherwise will consume
several or dozens of
KWH electricity per day.
To use air-conditioner
again power supply will
switched on at least 12hrs in advance.
These obstacles may lower the efficiency of
air-conditioner or stop it.
Don't place any goods around inlet and outlet.
If air-conditioner is not be used for a long time
the main power supply should be switch off.
Goods which must be kept dry can't be placed
under indoor unit.
when humidity
exceeds 80% or
water discharge
hole blocked,
indoor unit may
drop water.
Don't let sunlight shine
room directly; Don't
let outdoor air flow into
room.
Curtains or louver should be hanged on
windows.
Heating
18 -23
Cooling
26-28
[Clean air filter]
NOTE
1. Open inlet grill
Press the elliptical "PUSH" knob, the inlet
grill will automatically drop. (the inlet grill
is catched with two pothooks)
When having to clean, don't dismantle air-filter,otherwise may cause faults.
In the environment where there is too much dust, air filter should be cleaned for more times.
(about half a year one time)
PUSH
Press the elliptical knob
the inlet grill will
automatically drop
Open two
pothooks
Pothook
2. Open two othooks
MAINTENANCE
17
3. Dismantle air filter
CAUTION!
Don't wash with water over 50 ,to prevent
discoloring or deforming.
Don't dry over fire. Filter maybe burn.
4. Clean
6. Close inlet grill
7. Pr
ess the filter signal return key on the
controller.
[ Clean air filter ]
(A) Use vacuum suction or (B) wash with water
to remove dust.
(A) Remove dust with vacuum filter
.
(B) Wash with water.
With too much dust, use soft brush and neutral
detergent.
Swing off the water, and then place in cool place.
5. Install air filter
(1) Put filter into protruding parts at the top of
the inlet grill.
(2) Connect the two pothooks with inlet grill
See 2
[Clean inlet grill]
1. Open inlet grill
2. Take off air-filter
See "clean air filter"
See 1.
Connet the two pothooks with inlet grill
PU
Press the elliptical knob
the inlet grill will
automatically drop
Open two
pothooks
Pothook
Press the elliptical "PUSH" knob, the inlet
grill will automatically drop. (the inlet grill
is catched with two pothooks)
Drag the knob of
the grill back lift
the filter and take
down.
Air filter
MAINTENANCE
18
[Clean inlet grill]
3. Take of inlet grill
Open the inlet grill by an angle of 45 ,
lift up.
4. Clean
CAUTION!
Don't wash with water over 50 C,to prevent
decoloring or deforming.
Use soft brush, water and neutrul detergent,
then swing off the water.
NOTE
When too much dust
To spray the special detergent for vent fan or
utensils.
5. Install inlet grill
6. Install air filter
7. Close inlet grill
[Clean outlet and shell]
see 3
see "Clean air filter"
see 1
CAUTION!
Don't use gasoline, benzene, dilutant,
polishing powder, or liquid inseticide.
Don't wash with water over 50 C,otherwise
may cause decoloring or deforming.
Use soft dry cloth to scrub.
If dust not removed, can use water or neutral
detergent.
If ceiling built-in conditioner's swing plate
too dirty, it can be dimantled (as described
below) and cleaned.
[Dismantle and install swing
plate ]
1. Fix the swing plate at the bottom.
2. Dismantle the swing plate.
CAUTION!
Use water to clean the plate and don't heavily
scrub, otherwise the fine hair may fall off.
Unscrew the screw at both ends of the swing
plate.
MAINTENANCE
19
[Dismantle and install swing plate ]
3. Install swing plate
Lightly rotate swing plate to insert the ridge at
both ends of the outlet into the groove and then
screw up.
For detailed information consult dealer.
Perfect circuit connection.
If any abnormal cases, consult dealer.
2. Call technician to clean air-filter and shell.
3. Turn on power
Air-filter must be installed after cleaning.
After power turned on, some information on remote controller will display .
No blocks in the inlet /outlet of the indoor/outdoor unit.
Good earthing.
1. Check the following items:
At the beginning
Maintenance at the beginning and closing of the applying seasons
NOTE
When not in use for a long time
1. In fine days, go on with blowing for half a day, to make inner part of conditioner dry.
2. Turn off power supply.
3. Call technician clean air-filter and shell.
For details of blowing, see page 10.
If power not turned off, conditioner will consume several and dozens of KWH, To turn off power
can save electricity.
After power turned off, information on remote controller will disappear.
TROUBLE SHOOTING
20
The following symptoms are not faults
Symptom Reason
Conditioner
doesn't work
When stop machine then continue
operation.
When press temp setting key and release
at once.
When power turns on.
When humidity too high in the cooling
operation (high content of oil or just in
room).
When heating has started after defrosting.
During stopping the machine.
As it starts buzzing noises exist.
Constant noise in cooling or heating.
There are noises when start, stop and
defrosting begins, stops.
There are constant noise during operation
or after operation.
Noise during operation and after
operation.
Start after a long term of unuse.
In operation
White fog is
blown out
Outdoor unit
turns hot
Conditioner
makes noise
Conditioner give
out smell
Conditioner blow
out dust
The operation indicating lamp lights on
the remote controller is not fault; safety
unit is protecting the machine; after 3
minute the machine automatically start.
The computer is ready to operate, wait
for 1 minute or so.
Uncleaness of the indoor unit can cause
temp. fluctuation.
*1
The frost removed turns into rising
vapour.
Compressor is preheating so that the
conditioner start smoonthy.
The noise is existing after temp.controller
operates, 1 minute after turn weak.
There is sound of gaseous refrigerant
flowing in the conditioner.
The sound given out when gaseous
coolant stop folwing or switching.
It's the sound of operation of discharging
system.
*2
Resin part expands or contract due to
temp. change and give out this sound.
Dust in indoor unit is blown out.
Room smell or cigarrette smell sucked
into indoor unit is blown out.
NOTE
The inner part of indoor unit must be cleaned. Consult dealer, because clean must be done
by technician.
In cooling operation, discharging system discharge water in room.
*2
*1
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