INVENTOR V4MCRI-12 User manual

• USER’S MANUAL
• ΕΓΧΕΙΡΙΔΙΟ ΧΡΗΣΗΣ
• MANUAL UTILIZATORULUI
ENGLISH | ΕΛΛΗΝΙΚΑ | ROMANA
CASSETTE TYPE
MODELS:
V4MCRI-12/U4MRS-12
V4MCRI-18/U4MRS-18

CONTENT
IMPORTANT SAFETY INFORMATION-------------------------------------------------------------------1
HINTS FOR ECONOMICAL OPERATION-----------------------------------------------------------------2
PARTS NAMES-------------------------------------------------------------------------------------------------2
MANUAL OPERATION----------------------------------------------------------------------------------------3
ADJUSTING AIR FLOW DIRECTION-------------------------------------------------------------------------4
MAINTENANCE------------------------------------------------------------------------------------------------5
AIRCONDITIONEROPERATIONS ANDPERFORMANCE-----------------------------------------------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
fb
d
e
im
n
l
p
o
c
q
a
j
k
e
gdeDisplay 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 natu-
ralize 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
Cleaning th e indoor un it and remote controller
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 before operation
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 eciency 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 ONDITIONE R OP E R AT IONS AND P E R F OR MANC E
Air conditioner operating conditions
For proper performance, run the air conditioner under the following temperature conditions:
ModeCooling operation Heating operation Drying operation
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 low
temperature cooling system
18 52 64 126
For special tropical models
(Fo r s pec ial tropical models)
O O O O
17 C~ 32 C/ 62 F~ 90 F
O O O O
18 C~ 43 C/64F~109 F
O O O O
18 C~52 C/64F~126 F
Special funct 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 of 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.