INVENTOR V4MCRI-12, U4MRS-12, V4MCRI-18, U4MRS-18 User Manual
• USER’S MANUAL
• ΕΓΧΕΙΡΙΔΙΟ ΧΡΗΣΗΣ
• MANUAL UTILIZATORULUI
ENGLISH | ΕΛΛΗΝΙΚΑ | ROMANA
CASSETTE TYPE
MODELS:
V4MCRI-12/U4MRS-12
V4MCRI-18/U4MRS-18
CONTENT
IMPORT ANT SAFETY INFORMATION-------------------------------------------------------------------1
HINTS FOR ECONOMICAL OPERATION-----------------------------------------------------------------2
PAR TS NAMES-------------------------------------------------------------------------------------------------2
MANUAL OPERATION----------------------------------------------------------------------------------------3
ADJUSTING AIR FLOW DIRECTION-------------------------------------------------------------------------4
MAINTENANCE------------------------------------------------------------------------------------------------5
AIR CONDITIONER OPERATIONS AND PERFORMANCE-----------------------------------------------7
INSTALLATION------------------------------------------------------------------------------------------------8
TROUBLES AND CAUSES------------------------------------------------------------------------------------9
TROUBLES AND CAUSES(CONCERNING REMOTE CONTROLLER)----------------------------------9
Danger
No
Household
Drain
Cleaner
IMPORTANT SAFETY INFORMATION
Do not attempt to install this unit by yourself. This unit requires
installation by qualified persons.
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).
CAUTION
CAUTION
NOTE
DANGER
DANGER
WARNING
WARNING
WARNING
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. Tuning off the power supply will
not prevent potential electric shock.
To avoid the risk of serious electrical shock, Never sprinkle or
spill water or liquids on unit.
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.
To prevent electric shock, turn off the power or disconnect the
power supply plug before beginning any cleaning or other routine
maintenance. Follow the directions for cleaning in the Owner's
Manual.
1
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No
Thinner
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.
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.
For proper performance, operate the unit in temperature and
humidity ranges indicated in this owner's manual. If the unit is
operated beyond these conditions, it may cause malfunctions
of the unit or dew dripping from the unit.
HINTS FOR ECONOMICAL OPERATION
The following should be noticed to ensure an economical operation. (Refer to corresponding chapter
for details)
Adjust the air flow direction properly to avoid winding toward your body.
Adjust the room temperature properly to get a comfortable situation and to avoid supercooling and
superheat.
In cooling, close the curtains to avoid direct sunlight.
To keep cool or warm air in the room, never open doors or windows more often than necessary.
Set the timer for the desired operating time.
Never put obstructions near the air outlet or the air inlet. Or it will cause lower efficiency, even a
sudden stop.
If you don't plan to use the unit for a long time, please disconnect power and remove the batteries
from the remote controller. When the power switch is connected, some energy will be consumed,
even if the air conditioner isn't in operation. So please disconnect the power to save energy. And
please switch the power on 12 hours before you restart the unit to ensure a smooth operation.
A clogged air filter will reduce cooling or heating efficiency, please clean it once two weeks.
PARTS NAMES
f
b
d
e
i
m
n
l
p
o
c
q
a
j
k
e
g
d
e
Display Panel
The air conditioner consists of the indoor unit, the outdoor unit, the connecting pipe and the remote
controller.
Cassette Type
NOTICE!
This chart is based on 24000Btu/h type. So, a few differences may exist on the outlook and functions
from yours.
2
b
d
e
or
a) indoor unit b) outdoor unit
c) remote controller d) air-in
e) air-out f ) air outlet
g) air ow louver (at air outlet) h) connecting pipe
i ) drain hose j ) air inlet (with air lter in it)
k) drain pump (drain water from indoor unit) l ) infrared signal receiver
m) temporary button n) operation lamp
o) timer indicator
p) PRE-DEF indicator (cooling and heating type) or fan only indicator (cooling only type)
q) alarm indicator
NAMES AND FUNCTIONS
3
MANUAL OPERATION
Four-way Cassette
This function is used to operate the unit temporarily in case you misplace the remote controller or its
batteries are exhausted. Two modes including AUTO and mandatory COOL can be selected through
the TEMPORARY BUTTON on the air inlet grill control box of the indoor unit. Once you push this
button, the air conditioner will run in such order: AUTO, mandatory COOL, OFF , and back to AUTO.
AUTO
The OPERATION lamp is lit, and the air
conditioner will run under AUTO mode. The
remote controller operation is enabled to operate
according to the received signal.
OFF
The OPERATION lamp goes o. The air
conditioner is OFF while the remote controller
operation is enabled.
MANDATOR Y COOL
The OPERATION lamp ashes, the air conditioner
will turn to AUTO after it is enforced to cool with a
wind speed of HIGH for 30 minutes. The remote
controller operation is disabled.
1
2
3
ADJUSTING AIR FLOW DIRECTION
Cassette Type
While the unit is in operation, you can adjust the air ow louver to change the ow direction and naturalize the room temperature evenly. Thus you can enjoy it more comfortably.
1. Set the desired air ow 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 ow 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
0
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 IT UP AND DOWN
4
MAINTENANCE
5
WA RNING
Clean ing th e indo or un it and remo te con troller
WARNING
Before you clean the air conditioner, be sure to disconnect the power supply plug.
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.
!
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-treted 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.
CAUTIONS
!
Check s befo re ope ration
Cleaning the air lter
Check that the wiring is not broken o or disconnected.
Check that the air lter is installed. (Some air-conditioners haven't air lters.)
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.
The air lter can prevent the dust or other particulate from going inside .In case of blockage of the lter , the
working eciency of the air conditioner may greatly decrease .Therefore , the lter 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 lter must be increased .
If the accumulated dust is too heavy to be cleaned , please replace the lter with a new one(replaceable air
lter is an optional tting).
CAUTIONS
!
2. T ake out the air-in grill (together with the air lter shown in Sketch B)
o
Pull the air-in grill down at 45 and lift it up to take out the grill.
3. Dismantle the air lter
4. Clean the air lter(Vacuum cleaner or pure water may be used to clean the air lter. If the dust
accumulation is too heavy , please use soft brush and mild detergent to clean it and dry out in cool
place) .
A B
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.
Cautions: The control box cables ,which are originally connected with the main body electrical terminators
must be pulled o before doing as indicated above.
Cassette Type
6
Three-minute protection feature
Power failure
A protection feature prevents the air conditioner from being activated for approximately 3 minutes
when it restarts immediately after operation.
Power failure during operation will stop the unit completely.
Disconnect the unit with the power and then connect the unit with the power again. Push the ON/OFF
button on the remote controller to restart operation.
The OPERATION lamp on the indoor unit will start ashing when power is restored.
To restart operation, push the ON/OFF button on the remote controller.
Lightning or a car wireless telephone operating nearby may cause the unit to malfunction.
7
AIR C O NDIT IONE R OP E R ATIONS AND P E R F OR MANCE
Air conditioner operating conditions
For proper performance, run the air conditioner under the following temperature conditions:
Mode
Cooling operation
Heating operatio n
Drying operatio n
Temperature
1. If air conditioner is used outside of the above conditions, certain safety protection features
may come into operation and cause the unit to function abnormally.
2. Room relative humidity less than 80%. If the air conditioner operates in excess of this
gure, the surface of the air conditioner may attract condensation. Please sets the vertical
air ow louver to its maximum angle (vertically to the oor), and set HIGH fan mode.
3. Optimum performance will be achieved within these operating temperature.
Room temperature
Outdoor temperature
NOTE:
17 32
62 90
0 30
32 86
-7 24
20 76
18 43
64 109
-7 43 20 109
For the models with lo w
temperature cooling system
18 52 64 126
For special tropi cal models
(Fo r s pec ial tropi cal models)
O O O O
17 C~ 32 C/ 62 F~ 90 F
O O O O
18 C~ 43 C/64 F~109 F
O O O O
18 C~52 C /64 F~126 F
Special f unct ions
Louver Angle Memory Function(optional):
For some models, the machine is special designed with louver angle memory function.
Power failure during operation or pressing the ON/OFF button on the remote controller
will stop the unit completely.When the power restores or pressing the ON/OFF button
on the remote controller again,the unit restarts automatically with the previous open
angle of the horizontal louver by the memory function.So we strongly recommend that the
open angle of the horizontal louver should not be set too small,in case the condensed
water forms and drops from the horizontal louver . Press the Manual control button and
the open angle o f the horizontal louver will be restored to the standard angle.
Refrigerant Leakage Detection(optional):
With this new technology , the dipsplay area will appear EC (if applicable) and the LED
indication lamps continue ashing when the outdoor unit detects refrigerant leakage.
Relocation
If you move out or if it is desired to relocate the air conditioner, consult your dealer, because special
skills to withdraw Freon, purge air and perform other operations are required.
Location:
Be careful of noise or vibrations
Wire
During cooling operation, the air conditioner will dry the room air, so please x a pipe to drain all the
water away from the air conditioner.
Please let the indoor unit more than one metre away from the TV set and the radio in order to avoid
the picture and noise interference.
Powerful radio transmitters or any other devices radiating high frequency radio waves can cause
the air conditioner to malfunction. Please consult the dealer where you purchased the air conditioner before installing it.
Don't x the unit in the dangerous region with combustible gas or volatile matter.
If the air conditioner operates in an atmosphere containing oils (machine oil), salt (near a coastal
area), sulde gas (near a hot spring), etc., such substances may lead to failure of the air conditioner.
Please x the unit in the stable place to avoid the noise or vibrations.
The noise near the air outlet of the outdoor unit may enter the air exit.
Locate the outdoor unit where noise emitted by it or hot air from its air outlet will cause no nuisance
to your neighbours
.
If the air conditioner sounds abnormal during operation, contact the dealer where you purchased the
air conditioner.
To avoid the electric shock, please link the air conditioner with the ground. The plug in the air
conditioner has joined the ground wiring, please don't change it freely.
The power socket is used as the air conditioner specially.
Don't pull the power wiring hard.
When linking the air conditioner with the ground, observe the local rulers.
If necessary, use the power fuse or the circuit, breaker or the corresponding scale ampere.
If you want to change the power wiring, please contact a local service center.
INSTALLATION
8
Before you ask for servicing or repairs, check the following points.
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 ONL Y", and
"HEAT"
TROUBLES AND CAUSES
(CONCERNING THE REMOTE CONTROLLER)
TROUBLES AND CAUSES
Before you ask for servicing or repairs, check the following points.
The power fuse is blown or the circuit breaker has been tripped.
The batteries in the remote controller are exhausted.
The timer is set.
A bad odor comes from the air conditioner.
The air inlet or outlet of the outdoor unit is blocked.
Doors or windows are open.
The air lter is clogged with dust.
The louver is not at the correct position.
The fan speed is set to low.
The temperature setting is too high or too low.
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.
The indicator lamps ash rapidly (ve 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 ash.
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.
Recheck
These are not failures
Inoperative
Room air is smelly.
Does not cool or heat well.
If any of the following conditions occur, stop the air conditioner immediately, set to o the power
switch, and contact the dealer:
CAUTION
!
9
The Transmission Indicator " " Never Comes On
The Display Never Comes On
Symptoms
Symptoms
Causes
Causes
Reason and Disposal
Reason
The remote control signal is
not transmitted even when
the ON/OFF button is pushed.
The TEMP . indicator does
not come on.
Check whether the batteries
in the remote controller are
exhausted.
Check whether the MODE
indicated on the display is
"FAN ONLY".
The remote control signal is
not transmitted, because the
power supply is o.
The temperature cannot be
set during fan only operation.
The Display Goes O
Symptoms
Causes
Reason
The indication on the display
disappears after a lapse of
time.
The ON TIMER indicators
go o after a lapse of certain
time.
Check whether the timer
operation has come to an
end when the OFF TIMER
is indicated on the display.
Check whether the timer
operation is started when
the ON TIMER is indicated
on the display.
The air conditioner operation
stops since the set time
elapsed.
When the time set to start the
air conditioner is reached, the
air conditioner will automatically
start and the appropriate
indicator will go o.
The Signal Receiving Tone does Not Sound
Symptoms
Causes
Disposal
No receiving tone sounds
from the indoor unit even
when the ON/OFF button is
pushed.
Check whether the signal
transmitter of the remote
controller is properly directed
to the receiver of the indoor
unit when the ON/OFF button
is pushed.
Direct the signal transmitter of
the remote controller to the
receiver of the indoor unit, and
then repeatly push the ON/
OFF button twice.
Buttons on the remote
controller don't work.
Press Reset button.
10
Malfunction
1
2
3
4
5
6
7
8
9
10
12
13
14
15
16
17
18
19
20
21
22
23
24
25
11
Indoo r EEPROM error
Wate r -level alar m m alfun ction
Indoor room temperatur e s enso r
open circuit or short circuit
Ind oor fan s peed m alfunction
Com munication m alfunction
between tw o indoor unit s ( for
twins model)
Refrigerant le akage detecti on
malfunc tion
Eva pora tor coil temperatu re
sen sor open circuit or short cir cuit
Other m alfunction of tw ins model
Outdoor room tem perature se nsor
open circuit or short c
ircuit
Cur rent ov erload prot ect io n
High/Low v oltag e prot ecti o n
Inverter mo dule IPM protection
Lifting pa nel is no t closed
Lifting pa nel malfunct ion
Lifting panel com munication
che cking ch annel is a bnormal
T2b s ensor er ror
Outdoor EEPROM error
Outdoor fan speed malfunction
(Only for DC fan motor)
Discharging ai r temp erature
sen sor error
Out door condenser p i pe
tem pera ture se nsor error
E0.
E1.
E3 .
E4.
E5.
EC.
EE.
E8 .
E9.
F0.
F1.
F2.
F3.
F4.
F5.
F6.
F7.
F8.
F9.
P0 .
P1 .
P2 .
P3 .
P4 .
P5 .
ON.
ON.
ON.
ON.
ON.
ON.
ON.
ON.
ON.
ON.
Flash.
Flash.
Flash.
Flash.
Flash.
Flash.
Hig h temperature protec t ion of
com pressor top
Mode conflict
Com pressor drive erro r
Outdoor low temp. Protection
The following displays indicate an error or problem:
The displayed error code di ffers from a p pliance to appliance. T he ac tual d ispla y of the in door
unit s hall prevail.
NO
Display (nix ie tube)
timer lamp
running lamp (flashes per second)
Com muni cation malfun ction
bet ween indoor
and ou tdoor u nits
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
1
2
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
110
1
2
3
4
5
6
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