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Please read this installation manual carefully before installing your air conditioner.
Please keep this manual in a safe place for future reference.
This manual is suitable for cooling&heating .
FOUR-WAY CASSETTE TYPE
INSTALLATION MANUAL
50/V1.1
TROUBLES AND CAUSES
CAUTION
!
These are not failures
Room air is smelly.
A bad odor comes from the air conditioner.
Smells impregnated in the wall,carpet,furniture,clothing,or furs,are coming out. A white mist
of chilled air or water is generated from the outdoor unit.
If any of the following conditions occur,stop the air conditioner immediately,set off the power
switch, and contact the dealer.
The indicator lamps flash rapidly(five times per second),you disconnect the unit with the
power and then connect the unit with the power again after two or three minutes but the
lamps still flash.
Switch operations are erratic.
The fuse is blown frequently or the circuit breaker is tripped frequently.
Foreign matter or water has fallen inside the air conditioner.
Any other unusual condition is observed.
Before you ask for service or repairs,check the following points.
(CONCERNING REMOTE
CONTROLLER)
Setting Change is impossible
Symptoms Causes Reason and Disposal
The fan speed can not be
changed.
Check whether the MODE
indicated on the display is
AUTO
Check whether the MODE
indicated on the display is
DRY
When the automatic mode is
selected ,the air conditioner
automatically selects the fan
speed
When dry operation is selected,
the air conditioner automatically
select the fan speed .The fan speed
can be selected during COOL
and FAN ONLY,and HEAT mode.
The Transmission lndicator Never Comes On
Symptoms Causes Reason and Disposal
The remote control signal is
not transmitted even when
the ON/OFF button is pushed.
Check whether the batteries
in the remote controller are
exhausted.
The remote control signal is
not transmitted,because the
power supply is off.
The Display never comes on
Symptoms Causes Reason
The TEMP.indicator does not
come on.
Check whether the MODE
indicated on the display is
FAN ONLY
The temperature cannot be
set during fan only operation.
Please narrate the manual to the customers in detail.
INSTALL MANUAL of indoor and outdoor unit must be handed over to the customers.
HAND OVER TO CUSTOMERS
29
4
1
10
13
CONTENTS
IMPORTANT SAFETY INFORMATION
TROUBLES AND CAUSES
ADJUSTING AIR FLOW DIRECTION
DISPLAY PANEL
CHARGE ADDITOINAL refrigerant
AIR PURGING
ELECTRIC WIRING
TEST RUN
REFRIGERANT PIPE INSTALLATION
OUTDOOR UNIT INSTALLATION
INSTALLATION OF PANEL
DRAINAGE PIPE INSTALLATION
PRECAUTION
REMOTE CONTROTROLLER OPERATIONS
INDOOR UNIT INSTALLATION
MAINTENANCE
FUNCTION AND OPERATION OF PANEL'S PARTS
3
5
16
18
19
20
21
22
25
26
26
28
29
Read the following " PRECAUTIONS" carefully before installation.
The caution items stated here must be followed because these important contents are related
to safety. The meaning of each indication used is as below.
Incorrect installation due to ignoring of the instruction will cause harm or damage, and the
seriousness is classified by the following indications.
!
This indication shows the possibility of causing death or serious injury.
This indication shows the possibility of causing injury or damage to
properties only.
WARNING
!
CAUTION
1. Injury means causing harmed, burned, electrical shocked, but not serious for hospitalization.
2. Damage of property means disrepair of property, material.
Carry out test running to confirm that no abnormality occurs after the installation. Then, expl-
ain to user the operation, care and maintenance as stated in instructions. Please remind the
customer to keep the operating instructions for future reference.
Engage dealer or specialist for installation. If installation done by user is defective, it
will cause water leakage, electrical shock or fire.
Install according to this installation instructions strictly. If installation is defective, it will
cause water leakage, electrical shock or fire.
Use the attached accessories parts and specified parts for installation. Otherwise, it will
cause the set to fall, water leakage, fire or electrical shock.
Install at a strong and firm location which is able to withstand the set's weight. If the stren-
gth is not enough or installation is not properly done, the set will drop and cause injury.
For electrical work, follow the local national wiring standard, regulation and this installa-
tion instructions. An independent circuit and single outlet must be used. If electrical circuit
capacity is not enough or defect found in electrical work, it will cause electrical shock or fire.
When carrying out piping connection, take care not to let air or other substances other
than the specified refrigerant go into refrigeration cycle. Otherwise, it will cause lower
capacity, abnormal high pressure in the refrigeration cycle, explosion and injury.
Grounding is necessary. It may cause electrical shock if grounding is not perfect.
Do not install the unit at place where leakage of flammable gas may occur. In case gas
leaks and accumulates at surrounding of the unit, it may cause fire.
!
WARNING
NOTE :
1
PRECAUTION
IMPORTANT SAFETY INFORMATION
CAUTION
!
Do not attempt to install this unit by yourself.This unit requires
installation by qualified persons.
DANGER
!
Do not attempt to service the unit yourself.This unit has no user
serviceable components.Opening or removing the cover will
expose you to dangerous voltage.Turn off the power supply will
not prevent potential electric shock.
DANGER
!
Never put hands or objects into the Air Outlet of indoor or outdoor
units.These units are installed with a fan running at high speed.
To touch the moving fan will cause serious injury.
DANGER
!
To avoid the risk of serious electrical shock,never sprinkle or
spill water or liquid on unit.
WARNING
!
Ventilate the room regularly while the air conditioner is in use,
especially if there is also a gas appliance in use in this room.
Failure to follow these directions may result in a loss of oxygen
in the room.
WARNING
!
To prevent electric shock,turn off the power or disconnect the
power supply plug before beginning any cleaning or other routine
maintenance.
WARNING
!
Do not use liquid cleaners or aerosol cleaners,use a soft and dry
cloth for cleaning the unit .To avoid electric shock,never attempt
to clean the units by sprinkling water.
CAUTION
!
Do not use caustic household drain cleaners in the unit.Drain
cleaners can quickly destroy the unit components(drain pan and
heat exchanger coil etc).
NOTE
!
For proper performance,operate the unit in temperature and
humidity ranges indicated in this owner s manual.lf the unit is
operated beyond these conditions,it may cause malfunctions
of the unit or dew dripping from the unit.
28
Features of Protector
Feature of HEATING mode
Preheat
DRY
Room temperature is below 18
If the air conditioner runs for a long time in
"COOLING" or "DRY" mode at air relative
humidity higher than 80% (doors or windows
opened),dew may generate and drip near air outlet.
The protective device will trip at
following cases.
Stop the appliance and restart it at once
or change other modes during operation,
you have to wait 3 minutes before restarting.
After switching on the power circuit breaker
and then turn on the air conditioner at once,
you have to wait about 20 seconds.
In case all operations have stopped, you need
Press "ON/OFF" button again to restart it.
Set TIMER once again if it has been canceled.
Defrost
After a long time of operation, the air
conditioner should be inspected for
the following items.
Abnormal heating of the power supply
cord and plug or even a burnt smell.
Abnormal operating noise or vibration.
Water leakage from indoor unit.
Metal cabinet electrified .
Stop using the air conditioner if above
problem happened.
It is advisable that the air conditioner
should be given a detail check-up
after using for five years even if none
of the above happen.
Do not place any obstacles in front
of the outlet of the outdoor unit for
fear it affects operation and increases
the noise level.
2-5 minutes are necessary to preheat the indoor heat exchanger at the beginning of
"HEATING" operation, lest cold air be discharged.
In "HEATING" operation the appliance will defrost automatically. This procedure lasts
2 10 minutes, then returns to "HEATING" mode automatically. During defrosting, indoor
fan stop running and return to heating mode operation automatically when
defrosting has finished.
Inspection
Noise pollutionOperating condition
The protective device maybe trip and stop
the unit within temp range listed below:
HEATING
Outdoor air temperature is over 21
COOLING
Outdoor air temperature is below -7
Room temperature is over 31
Outdoor air temperature is over 43
Room temperature is below 17
Install the air conditioner in a place
that can bear its weight in order to
operate more quietly.
Install the outdoor unit in a place
where the air discharged and the
operation noise do not annoy your
neighbors.
2
Cassette Type
CAUTIONS
!
Check that the wiring is not broken off or disconnected.
Check that the air filter is installed.(Some air-conditioners have no air filters.)
Check that the outdoor unit air outlet or inlet is not blocked.
Before you clean the air conditioner, be sure to disconnect the power supply plug.
Clean the air filter
The air filter can prevent the dust or other particulate from going inside.In case of blockage of the
filter,the working efficiency of the air conditioner may greatly decrease.Therefore,the filter must be
cleaned once two weeks during long time usage.
If the air conditioner is positioned in a dust place,the cleaning frequency of the air filter must be increased.
If the accumulated dust is too heavy to be cleaned,please replace the filter with a new one(replaceable
air filter is an optional fitting).
1. Open the air-in grill
Push the grill switches towards the middle simultaneously as indicated in sketch A.Then pull down
the air-in grill.
Checks before operation
The control box cables,which are originally connected with the main body electrical
terminators must be pulled off before doing as indicated below.
Caution:
2. Take out the air-in grill(together with the air filter shown in Sketch B)
Pull the air-in grill down at 45 and lift it up to take out the grill.
3. Dismantle the air filter
4.Clean the air filter(Vacuum cleaner or pure water may be used to clean the air filter.If the dust
accumulation is too heavy,please use soft brush and mild detergent to clean it and dry out in cool
place).
27
Îå °²×°Ç°×¼±¸
1.PANEL
2.AIR FLOW LOUVER
3.INFRARED SIGNAL
RECEIVER
4.DISPLAY PANEL
5.AIR-IN GRILLE
Please adjust room temperature properly especially when the old men, children, patients
stay at house.
Lightning and other electromagnetic radiation may cause ill effect .If it is ,please plug off the
power switch ,and replug in ,then restart the unit.
Do not block the inlet of indoor unit or outlet of oudoor unit, any of blocks will reduce cooling
or heating efficiency.
FUNCTION AND OPERATION OF PANEL'S PARTS
3
WARNING
!
MAINTENANCE
Before you clean the air conditioner, be sure to disconnect the power supply plug.
CAUTIONS
!
Use a dry cloth to wipe the indoor unit and remote controller.
A cloth dampened with cold water may be used on the indoor unit if it is very dirty.
Never use a damp cloth on the remote controller.
Do not use a chemically-treated duster for wiping or leave such material on the unit for long,
because it may damage or fade the surface of the unit.
Do not use benzine,thinner,polishing powder,or similar solvents for cleaning. These may
cause the plastic surface to crack or deform.
Cleaning the indoor unit and remote controller
If you do not plan to use the unit for at least 1 month.
(1) Operate the fan for about half a day to dry the inside of the unit.
(2) Stop the air conditioner and disconnect power.
(3) Remove the batteries from the remote controller.
ADJUSTING AIR FLOW DIRECTION
Cassette Type
While the unit is in operation, you can adjust the air flow louver to change the flow direction and natu-
ralize the room temperature evenly. Thus you can enjoy it more comfortably.
1.Set the desired air flow direction.
Push the SWING button to adjust the louver to the desired position and push this button again to
maintain the louver at this position.
2.Adjust the air flow direction automatically.
Push the SWING button, the louver will swing automatically..
While this function is set,the swing fan of indoor unit runs;otherwise,the swing fan doesn t run.The
swing scale of every side is 30 .When the air conditioner isn t in operation(including when TIMER
ON is set),the SWING button will be disabled.
ADJUST UP AND DOWN
26
3. External wiring diagrams
Power supply
Power supply circuit breaker(prepared by user)
Power supply circuit breaker
(prepared by user)
Outdoor
unit
Indoor
unit
Defrost connecting cable
Control connecting cable
Power supply connecting cable
Power supply cord
Electric heater
Power supply cord
Power supply
b. If LCD screen displays normally.
a. After checking, energize your appliance and press the buttons on the control panel
to see if the buttons function;
Function test
if the all wires and cables are correctly connected and well fixed.
b. Check if the power supply complies with requirements; if there is refrigerant leakage;
a. Check if piping, drainage and external wiring have been finished correctly.
Before testing
1. Please read this operating and installation instructions carefully.
2. Do not let air in or refrigerant out during installing or reinstalling the appliance.
3. Test run the air conditioner after finishing installation and keep the record .
4. Type of fuse for controller of indoor unit is 50T, rated specification is T 10 A, 270V.
Fuse for the whole unit is not supplied by the manufacturer, so the installer must
employ a suitable fuse or other over-current protective device for the power supply
. circuit according to the maximum power input as required
5.The air conditioner operates safely when ambient static pressure is 0.8~1.05 standard
atmosphere pressure.
Notes
25
DISPLAY PANEL
DISPLAY PANEL
TEST RUN
Infrared signal receiver: receive the signal from the remote controller.
To make your remote controller operation more efficient, please let
remote controller emittor aim at infrared signal receiver.
Buzzer: firstly power supplied or any of remote controller operations will
make the buzzer sound once.
Some obstacles occuring in the system will be recognized by intelligent
recognition system of unit ,lighting on the DISPLAY PANEL flashing show
the type of obstacles .
LIGHTING ON
Timer indicator
Operation indicator
PRE-DEF indicator
Pump indicator
INFRARED SIGNAL
RECEIVER
ON when preset time for switching ON/OFFthe unit
ON when the unit is power on
ON when the water level is high
ON when the unit prevent cool air flowing in room.
Timer indicator
Operation indicator
PRE-DEF indicator
Pump indicator
1. It suits for 12000Btu/h,18000Btu/h cooling and heating pump type.
2. It suits for 24000Btu/h, 36000Btu/h ,42000Btu/h,48000Btu/h cooling and heating pump type.
ON when preset time for switching ON/OFFthe unit
ON when the unit is power on
ON when the water level is high
ON when the unit prevent cool air flowing in room.
4
Note: This wiring specification is only for reference ,please refer to the specified model and the
related electric standard to do the wiring.
Terminal Board Diagram
Panel Wiring
Connect the Swing Motor terminal block according to cassette indoor unit wiring diagram.
Please refer to cassette indoor unit wiring for the wiring.
Steps of external wiring connection
1. Remove air intake grille and electric box cover of indoor unit.
2. Remove access door of outdoor unit.
3. Connect the power supply connecting cable, the control connecting cable and defrost
connecting cable between indoor and outdoor unit. (The defrost connecting cable is
not applicable for heat pump models. ) Please refer to the following pages for details.
4. Make sure the cables being fixed well with an effective anchorage after connecting.
5. Grounding work must be carried out for indoor and outdoor units.
6. Install the components removed back to the unit.
Model
Items
Power Cord of the Indoor Unit
Control Wire
Diameter
Power
Capacity Fuse
Quantity
Power Switch Power Cord
Indoor/Outdoor Unit
Signal Wire
Single Phase
220-240V~ 50Hz
30A
36000Btu/h
12000Btu/h,18000Btu/h,24000Btu/h
Parts of Names & Functions
ON/OFF button
This button,when pressed,starts
operation and stops when repressed.
SLEEP button
This button changes SLEEP operation.
AIR LOUVER button
This button changes flap mode.
This button sets the temprature and time.
SET button
TIMER button
The button selects ON TIMER
operation or normal operation.
FAN SPEED button
Button for setting the air quantity
Symbols indicate OPERATION MODE
Indicators for the operation which
has been set.
OPERATION MODE select button
Each time the button is pushed,the
indicator is switched over in turn.
Temperature indicator
Indicates the set temperature.(It doesn't indicate
temperature when operation mode is at AUTO)
AIR FLOW indicator
Indicators selected flap mode.
Air flow indicator
Indicators the seleted air flow rate.
Present time and ON-TIMER indicator
During ON-TIMER operation......[ START] is indicated
During normal operation time......time only is indicated
Temperature indicator
Indicates the set temperature.(It doesn't indicate
temperature when operation mode is at AUTO)
CLOCK button
RESET button
AIR FLOW button
ON/OFF
CLOCK
RESET
HR.
MIN.
REMOTE CONTROLLER OPERATIONS
5
Indoor Unit Outdoor Unit
3 2.5
3 2.5
5 2.5
5
4
3
2.0
1.5
1.5
24
Three Phase
Three Phase
380-400V 3N~50Hz
380-400V 3N~50Hz
30A
5 2.5
5 2.5
3
1.5
Outdoor unit
Thermal insulation Materials
Connecting pipes
Electric control box cover
Sensor connecting wire
Power supply wire
Signal connecting wire
36000Btu/h
42000Btu/h,48000Btu/h
In AUTO mode,the indicator default temperature is 24 .
AUTO mode operation procedure
Operates by selecting automatically the operation mode(HEAT,DRY,COOL)depending on the room temperature at starting.
With the remote controller pointing towards the air conditioner.With the remote controller pointing towards the air conditioner.
Press the ON/OFF button.
1
When the unit is not at AUTO mode:When the unit is not at AUTO mode:
2
Press the MODE select button.
Move the MODE to the (AUTO)position.
To Stop:
Press the ON/OFF button.
The operation of the AUTO
mode can be performed by
only pressing the ON/OFF
button from the next time.
Air is not blown out at during opera-
tion.
NOTE
If you don't like the content of AUTO mode operation,
change to HEAT,DRY or COOL than AUTO.
If you don't like the content of AUTO mode operation,
change to HEAT,DRY or COOL than AUTO.
Temperature adjusting procedure during AUTO operation
Air temperature adjustment is possible even during automatic operation.There are 6 levels of adjustment possible with
the button or the button .
Press the or button.
1
When the button or the button is pushed ,the indicator does not change.
ON/OFF
CLOCK
RESET
HR.
MIN.
6
Power cord is to be selected according to national regulations.
Outdoor unit power cord should be selected and connected according to the outdoor unit
installation manual.
Wiring should be away from high temperature components, or the insulation layer of the
wires may melt down.
Use wire clamp to fix the wires and terminal block after connection.
Control wire should be wrapped together with heat insulated refrigerant pipes.
Connect the indoor unit to power only after the refrigerant has been vacuumed.
CAUTION
Don t connect the power wire to the signal wire connection end.
Indoor/Outdoor Unit Signal Wire
Connect the wire according to their numbers.
Wrong connection may cause malfunction .
Wiring Connection
Seal the wiring connection with the insulation material , or the condensing dew will be caused.
Wiring specifications are listed below, insufficient capacity would over-heat the wire or destroy
the machine.
23
24000Btu/h 36000Btu/h SIGNAL WIRING DIAGRAM
24000Btu/h 36000Btu/h 42000Btu/h, 48000Btu/h SIGNAL WIRING DIAGRAM
*
ON/OFF
CLOCK
RESET
HR.
MIN.
2
1
18000Btu/h SIGNAL WIRING DIAGRAM
12000Btu/h SIGNAL WIRING DIAGRAM
ON/OFF
CLOCK
RESET
HR.
MIN.
COOL/ HEAT / DRY mode operation procedure
With the remote controller pointing towards the air conditioner.With the remote controller pointing towards the air conditioner.
Press the ON/OFF button.
1
3
Press the MODE select button.
Move the MODE to the desirable operation position.Move the MODE to the desirable operation position.
[ (COOL), (HEAT), (DRY) (AUTO) (FAN) ][ (COOL), (HEAT), (DRY) (AUTO) (FAN) ]
2
4
Set to your favorite temperature press or button.
Standard.
Set to your favorite temperature press or button.
Standard.
Press the TEMP . button.
If FAN is selected, room temperature isn't controlled,operation being continuously.If FAN is selected, room temperature isn't controlled,operation being continuously.
26 C ~28 C
HEAT
22 C ~24 C
COOL
DRY
21 C ~24 C
NOTE
Press the FAN SPEED button.
Set to your favorite air flow rate.Set to your favorite air flow rate.
To Stop:
Press the ON/OFF button.
Air is not blown out at during operation.Air is not blown out at during operation.
Changing procedure of the content of the operation
Set to the new content.Set to the new content.
The content of the operation can be set or changed
even while the air conditioner is off operation.
The content of the operation can be set or changed
even while the air conditioner is off operation.
2
1
4
3
When cells are inserted,the present time is automatically set to AM12:00When cells are inserted,the present time is automatically set to AM12:00
Ex:Set to AM10:30.Ex:Set to AM10:30.
1
Please slide and remove the cover.
Press the CLOCK switch,with the tip of a ball pen, etc,
the present time can be set.
3
NOTE
The timer is set on the basis of the present time.So set the
present time correctly.
The timer is set on the basis of the present time.So set the
present time correctly.
1,4
2
Press the HR button to set the HR .
Press the HR button to set the MIN .
Press the clock switch to confirm.
ON/OFF
CLOCK
RESET
HR.
MIN.
Present time setting procedure
7
Specification of
Liquid pipe
12.7
9.52
6.35
Max. length
20m
15m
25m
Additional refrigerant
(L-5)X0.05 kg
(L-5)X0.03 kg
(L-5)X0.10 kg
The additional refrigerant should be charged from the service port of the 3-way valve
when the appliance is operating in cooling mode.
Do not allow air enter the refrigeration system while charging refrigerant.
(* "L" refers to length of connection pipe.)
Open/Close the valves
Open/Close the spools or the valves of outdoor unit with a f5mm hexagon spanner.
!
WARNING
Specified power cables should be used. Do not apply any pressure on the
terminals used to connect.
Grounding must be properly done.
Improper connection may cause fire.
Electric Wiring must be done by professionals. Use a separate circuit according
to national regulations.
The grounding wire should be away from gas pipes, water pipes, telephone,
lightening rods or other grounding wires. Improper grounding may cause electric
shock.
If the wiring capacity is not enough, electric shock or fire may occur.
If the supply cord is damaged, it must be replaced by the manufacturer or its service agent
or a similarly qualified person in order to avoid a hazard
An all-pole disconnection switch having a contact separation of at least 3mm in all poles sho-
uld beconnected in fixed wiring.
Be sure to Install Current Leakage Protection Switch. Or electric shock may occur.
the appliance must be positioned so that the plug is accessible
the appliance shall be installed in accordance with national wiring regulations
CAUTION
22
ELECTRIC WIRING
The temperature of refrigerant circuit will be hight ,please keep the interconnection
able away from the copper tube.
3
4
2
3
Air flow direction adjustment procedure This type has no this function
Up/down direction can be adjusted by using the AIRFLOW button on the remote controller.
This button,each time pressed,changes the mode in the following sequence:
Up/down direction can be adjusted by using the AIRFLOW button on the remote controller.
This button,each time pressed,changes the mode in the following sequence:
Adjusting air flow direction
NOTE
When the room temperature controller(thermostat)trips in the heating mode or when the defrosting operation is conducted,the blow flap changes automatically to theWhen the room temperature controller(thermostat)trips in the heating mode or when the defrosting operation is conducted,the blow flap changes automatically to the
horizontal position.horizontal position.
When the heating operation has just started and the room temperature is still low,it may take a little time before the flap moves to the above sway operation angle.When the heating operation has just started and the room temperature is still low,it may take a little time before the flap moves to the above sway operation angle.
The flap may stop at the tilted down-blow position during the"Sway operation"in the heating mode,The flap may stop at the tilted down-blow position during the"Sway operation"in the heating mode,
AUTO
push the LOUVER button,changes the mode to swing louver.
Push the button,to stop swing.
push the LOUVER button,changes the mode to swing louver.
Push the button,to stop swing.
About TIMER operation
About Amenity reservation
Amenity reservation funcition is provided to start the operation a little earlierAmenity reservation funcition is provided to start the operation a little earlier
so that the room temperature is near the optimum temperature at the timer ONso that the room temperature is near the optimum temperature at the timer ON
time in case of starting the operation by TIMER ON/OFF.time in case of starting the operation by TIMER ON/OFF.
MechanismMechanism
Checking of the room temperatureChecking of the room temperature
starts 60 minutes ahead of the timerstarts 60 minutes ahead of the timer
ON time.Depe ding on the tempera-ON time.Depe ding on the tempera-
ture at that time,operation starts 5 to ture at that time,operation starts 5 to
60 minutes ahead of the timer ON time.60 minutes ahead of the timer ON time.
Amenity reser ation is the functionAmenity reser ation is the function
only for COOL and HEAT operationonly for COOL and HEAT operation
mode (including AUTO).It does notmode (including AUTO).It does not
actuate in DRY mode.actuate in DRY mode.
About SLEEP OperationAbout SLEEP Operation
When the SLEEP operation is selected,the room temperature is auto-
matically controlled with elapsed time so that the room isn't too cool
during cooling or too warm during heating.
During cooling and dry:Present temperature is raised 1 in an hour
(when the timer is set),and 2 raise in two hours.Then the temperature
dosen't change ever.
During heating:Present temperature is lowered 1 in an hour (when the
timer is set),and 2 lower in two hours.Then the temperature dosen't
change ever.
In cool operation In cool operation
Set
Temperature
Set
Temperature
Check the room
temp. 60 min
ahead
Check the room
temp. 60 min
ahead
Set timeSet time
(Operation)(Operation)
(Stop) Operation starts(Stop) Operation starts
8
indoor unit
refrigerantflow direction
3-way valve
(6). If the uint has no leakage,then Tighten the
exhaust nut of 3-way valve.
(8)Back the exhaust nut to the uint..
(3).Loose the outlet nut of the additional freon refrigerant pot .
(1).Loosen the liquid pipe flare nut and remove the
exhaust nut of 3-way valve.
(2). Connect the outlet nut of the additional freon refrigerant
pot to the exhaust mouth .
(9).Loosen the valve spindle and core to Maximum.
(7).Press the spindle and let the additional freon
refrigerant leak out until the velocity of purging Air
is slow and warm .
3-way valve diagram
Connect to indoor unit
Close position
Valve spindle
Exhaust nut
Valve core
Connect to outdoor unit
Air exhaust process:
Connect hose
additional freon refrigerant pot
outlet nut
Refrigerant Volume to Be Added
Refrigerant volume to be added is calculated according to outdoor unit installation manual.
Be sure to add refrigerant measuring by a scale.
If the added refrigerant volume is inadequate (too much or insufficient), the compressor
malfunction will be caused. Be sure to calculate the refrigerant volume carefully.
The service man should write down the piping length and the added refrigerant volume
in the nameplate, which is on the electric control box cover of outdoor unit, for
diagnosing the compressor and refrigeration circulation malfunction.
CAUTION
The refrigerant refrigerant charge volume for the unit is based on using a 5m connecting
pipe. If the connecting pipe's length is longer than 5m, it is advisable to charge
additional refrigerant for the unit in order to achieve better operation.
21
Exhaust mouth
Exhaust spindle
(4).After exhausting air for almost one miniute,then
tighten the liquid pipe flare nut
Charge additional refrigerant
(5). Detect all the pipe joints leakage of freon in this
unit with soap water.
About FAN SPEED
Capacity of the air conditioner can be selected by your choice.During heating or cooling.Capacity of the air conditioner can be selected by your choice.During heating or cooling.
Operation capacity by your choice Operation capacity by your choice
Set automatically by microcomputer Set automatically by microcomputer
Powerful operation with high capaci y Powerful operation with high capaci y
Standard operation Standard operation
FAN SPEEDFAN SPEED
AUTOAUTO
HIHI
MEDMED
Energy-saving operation
Lo
About power-off memory function
When the air conditioner disconnect the power suddenly, restart it, the air conditioner operates at the mode
it did before power suddenly failed.
Remote controller handling procedure
Batteries replacing procedure
Following cases signify dead cells.Replace the dead batteries with new ones.Following cases signify dead cells.Replace the dead batteries with new ones.
Receiving sound is not emitted from the unit when signal is transmitted.
Indicator becomes indistinct.
Receiving sound is not emitted from the unit when signal is transmitted.
Indicator becomes indistinct.
Please slide and remove the cover.Please slide and remove the cover.
Exchange the batteries.Exchange the batteries.
Install the cove .Install the cove .
Set it to the present time.Set it to the present time.
Guideline of the life time is printed on the battery.Guideline of the life time is printed on the battery.
The battery life may be shorter than that of the air The battery life may be shorter than that of the air
conditioner depending on the date of manufacture.conditioner depending on the date of manufacture.
However,the battery may be alive even after theHowever,the battery may be alive even after the
nominal life time expired.nominal life time expired.
When an abnormality appears in the display,When an abnormality appears in the display,
push the CLOCK button with a ball point pen,push the CLOCK button with a ball point pen,
NOTE
Do not use an old battery together with a new one.Do not use an old battery together with a new one.
Remove cells when the remote controller is notRemove cells when the remote controller is not
used for a long period.used for a long period.
The life of a cell made in conformity to JIS or IECThe life of a cell made in conformity to JIS or IEC
Is 6 to 12 months in normal use.If it is used longer Is 6 to 12 months in normal use.If it is used longer
or an unspecified cell is used,a liquid leaks fromor an unspecified cell is used,a liquid leaks from
the cell,cau ing the remote co troller inoperative.the cell,cau ing the remote co troller inoperative.
1
2
3
4
Attention to
the and
marks.
Attention to
the and
marks.
Slide the cover
upwardly in the
direction of the
arrow.
Slide the cover
upwardly in the
direction of the
arrow.
Note of remote controller handling
A place wlth high temperature such
as near an electric carpet or a stove.
A place unprotected from direct
sunlight or strong lighting.
It will be damaged if fallen.Be careful.
Do not put obstacles between the
remote controller and the unit.
Protect the remote controller from
being splashed with water,etc.
Do not put weights on the remote
controller.
9
Please refer to the following figures to install.
The following figure only shows the assembly relationship of the indoor unit ,outdoor
unit and refrigerant pipes.
NOTE
The throttle subassembly has been installed in the outdoor unit..
Use two spanners to connect the pipe with indoor/outdoor pipes to avoid the copper pipe cracking.
Please pay attention to the connection orientation when connecting.
Use a vacuum pump, to vacuum from the gas side refrigerant adding mouth of the outdoor
unit.
Don t use the refrigerant of the outdoor unit to do the vacuum. (A certain volume of refrigerant
had been added into the outdoor unit in factory.)
Air and moisture remains inside the refrigeration system, may has the following bad effects:
Rise of pressure inside the refrigeration system;
Decrease of cooling (or *heating) effect;
Moisture frozen and blocking the refrigeration system;
Rusting of certain parts of the system
After connecting the indoor and outdoor units , it is necessary to exhaust the air inside the
pipes completely as follows:
20
Air Purging
9

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