Fujitsu ASU7RLF Installation Manual
Compact Wall Mounted Type
G
PART NO.9332280012-03
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CONTENTS
SAFETY PRECAUTIONS ......................................En-1
FEATURES AND FUNCTIONS .............................En-2
NAME OF PARTS .................................................En-3
PREPARATION ......................................................En-5
OPERATION ..........................................................En-6
TIMER OPERATION ..............................................En-8
SLEEP TIMER OPERATION ..................................En-9
ADJUSTING THE DIRECTION OF
AIR CIRCULATION ............................................ En-10
SWING OPERATION .......................................... En-11
ECONOMY OPERATION ....................................En-11
MINIMUM HEAT OPERATION ...........................En-12
MANUAL AUTO OPERATION ............................En-12
CLEANING AND CARE .......................................En-13
TROUBLESHOOTING.........................................En-15
OPERATING TIPS ................................................ En-16
SAFETY PRECAUTIONS
Before using the appliance, read these “PRECAUTIONS” thoroughly and operate in the correct way.
●
The instructions in this section all relate to safety; be sure to maintain safe operating conditions.
●
“DANGER”, “WARNING” and “CAUTION” have the following meanings in these instructions:
●
DANGER!
WARNING!
CAUTION!
This mark indicates procedures which, if improperly performed, are most likely to
result in the death or serious injury to the user or service personnel.
This mark indicates procedures which, if improperly performed, might lead to the
death or serious injury of the user or service personnel.
This mark indicates procedures which, if improperly performed, might possibly result
in personal harm to the user, or damage to property.
DANGER!
CAUTION!
Do not attempt to install this air conditioner by yourself.
●
This air conditioner contains no user-serviceable parts. Always consult authorized
●
service personnel for repairs.
When moving, consult authorized service personnel for disconnection and installation
●
of the air conditioner.
Do not become excessively chilled by staying for many hours in the direct cooling airfl ow.
●
Do not insert fi ngers or objects into the outlet port or intake grille.
●
Do not start and stop air conditioner operation by disconnecting the power supply cord.
●
Take care not to damage the power supply cord.
●
If the power supply cord of this appliance is damaged, it should only be replaced by the
●
authorized service personal, since special purpose tools and specifi ed cord are required.
In the event of a malfunction (burning smell, etc.), immediately stop operation, turn
●
off the breaker, and consult authorized service personnel.
In the event of refrigerant leakage, be sure to keep away from fi re or any fl ammables.
●
(consult an authorized service personnel)
Provide occasional ventilation during use.
●
Do not direct airfl ow at fi replaces or heating apparatus.
●
Do not climb on, or place objects on, the air conditioner.
●
Do not hang objects from the indoor unit.
●
Do not set fl ower vases or water containers on top of air conditioners.
●
Do not expose the air conditioner directly to water.
●
Do not operate the air conditioner with wet hands.
●
Do not pull power supply cord.
●
Turn off power supply when not using the indoor unit for extended periods.
●
Check the condition of the installation stand for damage.
●
Do not place animals or plants in the direct path of the airfl ow.
●
Do not drink the water drained from the air conditioner.
●
Do not use in applications involving the storage of foods, plants or animals, precision
●
equipment, or art works.
Connection valves become hot during Heating; handle with care.
●
Do not apply any heavy pressure to radiator fi ns.
●
Operate only with air fi lters installed.
●
Do not block or cover the intake grille and outlet port.
●
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Ensure that any electronic equipment is at least 3.3ft (1m) away from either the in-
CAUTION!
●
door or outdoor units.
Avoid installing the air conditioner near a fi replace or other heating apparatus.
●
When installing the indoor and outdoor unit, take precautions to prevent access to infants.
●
Do not use infl ammable gases near the air conditioner.
●
This appliance is not intended for use by persons (including children) with reduced
●
physical, sensory or mental capabilities, or lack of experience and knowledge, unless
they have been given supervision or instruction concerning use of the appliance by a
person responsible for their safety. Children should be supervised to ensure that they
do not play with the appliance.
FEATURES AND FUNCTIONS
INVERTER
At the start of operation, large amount of power is used to
bring the room quickly to the desired temperature. Afterward, the air conditioner automatically switches to a low
power setting for economic and comfortable operation.
WIRELESS REMOTE CONTROLLER
The Wireless Remote Controller allows convenient control
of indoor unit operation.
ECONOMY OPERATION
When ECONOMY operation mode is operated, the room
temperature will be little higher than the set-temp under
cooling mode and lower than set-temp under heating
mode. Therefore, the ECONOMY mode is able to save
more energy than other normal mode.
AUTO CHANGEOVER
The operation mode (cooling, dry, heating) is switched automatically to maintain the set temperature, and the temperature is kept constant at all times.
MINIMUM HEAT OPERATION
The room temperature can be maintained at 50 °F so as to
prevent the room temperature from falling too far.
PROGRAM TIMER
The program timer allows you to integrate OFF timer and
ON timer operations in a single sequence. The sequence
can involve 1 transition from OFF timer to ON timer, or
from ON timer to OFF timer, within a 24 hour period.
MILDEW-RESISTANT FILTER
The AIR FILTER has been treated to resist mildew growth,
thus allowing cleaner use and easier care.
SUPER QUIET OPERATION
When the FAN button is used to select QUIET, the indoor
unit begins super-quiet operation; the indoor unit’s airfl ow
is reduced to produce quieter operation.
POLYPHENOL CATECHIN AIR CLEANING FILTER
The polyphenol catechin air cleaning filter uses static
electricity to clean fi ne particles and dust in the air such
as tobacco smoke and plant pollen that are too small to
see. The fi lter contains catechin, which is highly effective
against various bacteria by suppressing the growth of the
bacteria adsorbed to the fi lter.
Note that when the air cleaning filter is installed, the
amount of air produced decreases, causing a slight decrease in the indoor unit’s performance.
NEGATIVE AIR IONS DEODORIZING FILTER
It comprises pottery super micro particles which can produce negative air ions having the effect of deodorizing and
can absorb and remit the peculiar smell at home.
SLEEP TIMER
When the SLEEP button is pressed during Heating mode,
the indoor unit’s thermostat setting is gradually lowered
during the period of operation; during cooling mode, the
thermostat setting is gradually raised during the period of
operation. When the set time is reached, the indoor unit
automatically turns off.
SWING OPERATION
The Airflow Direction Louvers swings automatically up
and down so that the air speeds to every nook and corner
of your room.
REMOVABLE INTAKE GRILLE
The indoor unit’s Intake Grille can be removed for easy
cleaning and maintenance.
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NAME OF PARTS
Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
To facilitate explanation, the accompanying illustration has been drawn to show all possible indicators; in actual operation, however, the display will
only show those indicators appropriate to the current operation.
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Fig. 1 Indoor Unit
Operating Control Panel (Fig. 2)
1
MANUAL AUTO button
2
3
4
5
6
7
8
9
0
A
B
When the MANUAL AUTO button is
●
pressed in for more than 10 seconds,
the forced cooling operation will start.
The forced cooling operation is used at
●
the time of installation.
Only for authorized service personnel's
use.
When the forced cooling operation
●
starts by any chance, press the START/
STOP button to stop the operation.
Please press the button at
●
INDICATOR RESET
Indicator (Fig. 3)
Remote Control Signal Receiver
OPERATION Indicator Lamp (green)
TIMER Indicator Lamp (orange)
If the TIMER indicator lamp flashes
●
when the timer is operating, it indicates that a fault has occurred with the
timer setting (See Page 17 Auto Restart).
ECONOMY Indicator Lamp (green)
ECONOMY indicator lamp lights when
●
ECONOMY OPERATION and MINIMUM
HEAT OPERATION is operating.
Intake Grille (Fig. 4)
Front Panel
Air Filter
Airfl ow Direction Louver
Right-Left Louver
(behind Airfl ow Direction Louver)
Drain Hose
C
FILTER
Fig. 5 Remote Controller
Signal Transmitter
D
MODE button
E
MIN.HEAT button
F
ECONOMY button
G
SLEEP button
H
TIMER MODE button
I
FAN button
J
START/STOP button
K
SET button (Vertical)
L
SWING button
M
SET TEMP. button (
N
TIMER SET (
O
CLOCK ADJUST button
P
TEST RUN button
Q
This button is used when installing
●
the air conditioner, and should not be
used under normal conditions, as it
will cause the indoor unit’s thermostat
function to operate incorrectly.
If this button is pressed during normal
●
operation, the indoor unit will switch
to test operation mode, and the Indoor
Unit’s OPERATION Indicator Lamp and
TIMER Indicator Lamp will begin to
fl ash simultaneously.
To stop the test operation mode, press
●
the START/STOP button to stop the air
conditioner.
RESET button
R
Remote Controller Display(Fig.6)
S
Temperature SET Display
T
Operation Mode Display
U
SLEEP TIMER Display
V
Transmit Indicator
W
Fan Speed Display
X
SWING Display
Y
Timer Mode Display
Z
Clock Display
[
/ )
/ ) button
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PREPARATION
Turn on the Power
Turn on the circuit breaker
1
Load Batteries (AAA/R03/LR03 × 2)
Press and slide the battery compartment lid on the re-
1
verse side to open it.
Slide in the direction of the arrow while pressing the mark.
Insert batteries.
2
Be sure to align the battery polarities ( ) correctly.
Close the battery compartment lid.
3
Set the Current time
Press the CLOCK ADJUST button (Fig. 5 P).
1
Use the tip of a ball-point pen or other small object to press the button.
Use the TIMER SET ( / ) buttons (Fig. 5 O) to
2
adjust the clock to the current time.
button:
button:
Press to advance the time.
Press to reverse the time.
CAUTION!
Take care to prevent infants from acci-
●
dentally swallowing batteries.
When not using the Remote Control-
●
ler for an extended period, remove the
batteries to avoid possible leakage and
damage to the unit.
If leaking battery fl uid comes in contact
●
with your skin, eyes, or mouth, immediately wash with copious amounts of
water, and consult your physician.
Dead batteries should be removed imme-
●
diately and disposed of properly, either
in a battery collection receptacle or to the
appropriate authority.
Do not attem pt to recharge dry batteries.
●
Never mix new and used batteries, or
batteries of different types.
Batteries should last about 1 year under normal use. If the Remote Controller's operating range becomes appreciably reduced, replace the batteries and
press the RESET button with the tip of
a ballpoint pen or other small object.
(Each time the buttons are pressed, the time will be advanced/reversed
in 5 minute increments; hold the buttons depressed to change the time
quickly in ten-minute increments.)
Press the CLOCK ADJUST button (Fig. 5 P) again.
3
This completes the time setting and starts the clock.
To Use the Remote Controller
The Remote Controller must be pointed at signal receiver (Fig. 3 4) to operate
●
correctly.
Operating Range: About 23ft (7 m).
●
When a signal is properly received by the indoor unit, a beeping sound will be
●
heard.
If no beep is heard, press the Remote Controller button again.
●
Remote Controller Holder
Insert
Press in
Screws
Slide up
Pull out
1 Mount the Holder. 2 Set the Remote Controller.
3 To remove the Remote Con-
troller (when use at hand).
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OPERATION
To Select Mode Operation
Press the START/STOP button (Fig.5 K).
1
The indoor unit’s OPERATION Indicator Lamp (green) (Fig. 3 5) will
light.
The air conditioner will start operating.
Press the MODE button (Fig.5 E) to select the desired
2
mode.
Each time the button is pressed, the mode will change in the following
AUTO COOL DRY
HEAT FAN
order.
About 3 seconds later, the entire display will reappear.
To Set the Thermostat
Press the SET TEMP. button (Fig. 5 N).
button:
button:
Thermostat setting range:
●
AUTO ....................................64-88 °F
Cooling/Dry ..........................64-88 °F
Heating .................................60-88 °F
The thermostat cannot be used to set room temperature during the FAN mode (the
temperature will not appear on the Remote Controller's Display).
▲
Press to raise the thermostat setting.
Press to lower the thermostat setting.
▲
▼
▲
▼
Example:
When set to COOL.
About 3 seconds later, the entire display will reappear.
The thermostat setting should be considered a standard value, and may differ
somewhat from the actual room temperature.
To Set the Fan Speed
Press the FAN button (Fig. 5 J).
Each time the button is pressed, the fan speed changes in the following order:
AUTO HIGH MED LOW QUIET
About 3 seconds later, the entire display will reappear.
When set to AUTO:
Heating
However, the fan will operate at very low speed when the tempera-
Cooling
Fan :
The fan will operate at a very low setting during Monitor operation and at the
start of the Heating mode.
▲
:
Fan operates so as to optimally circulate warmed air.
ture of the air issued from the indoor unit is low.
:
As the room temperature approaches that of the thermostat setting,
the fan speed becomes slower.
The fan runs at the low fan speed.
▲
▲
▲
▲
SUPER QUIET Operation
SUPER QUIET operation begins. The indoor unit’s airfl ow will be reduced for quieter operation.
SUPER QUIET operation cannot be used during Dry mode. (The same is true
●
when dry mode is selected during AUTO mode operation.)
During Super Quiet operation, Heating and Cooling performance will be re-
●
duced somewhat. If the room does not warm up/ cool down when using SUPER QUIET Operation, please adjust the indoor unit’s Fan Speed.
Example:
Example:
When set to 80°F.
When set to AUTO.
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OPERATION
To Stop Operation
Press the START/STOP button (Fig. 5 K).
The OPERATION Indicator Lamp (green) (Fig. 3 5) will go out.
About AUTO CHANGEOVER Operation
AUTO:
● When AUTO CHANGEOVER operation fi rst selected, the fan will operate at very low speed for about a few minutes, during which time the
indoor unit detects the room conditions and selects the proper operation mode.
If the difference between thermostat setting and actual room tem-
If the difference between thermostat setting and actual room tem-
If the difference between thermostat setting and actual room tem-
●
perature is more than +4 °F → Cooling or dry operation
perature is within ±4 °F → Determined by outdoor temperature
perature is more than –4 °F → Heating operation
When the indoor unit has adjusted your room’s temperature to near
●
the thermostat setting, it will begin monitor operation. In the monitor
operation mode, the fan will operate at low speed. If the room temperature subsequently changes, the indoor unit will once again select
the appropriate operation (Heating, Cooling) to adjust the temperature to the value set in the thermostat.
If the mode automatically selected by the indoor unit is not what you
wish, select 1 of the mode operation (HEAT, COOL, DRY, FAN).
About Mode Operation
Heating:
Cooling:
Dry:
Fan:
● Use to warm your room.
When Heating mode is selected, the indoor unit will operate at very
●
low fan speed for about 3 to 5 minutes, after which it will switch to
the selected fan setting. This period of time is provided to allow the
indoor unit to warm up before begin full operation.
When the room temperature is very low, frost may form on the out-
●
door unit, and its performance may be reduced. In order to remove
such frost, the air conditioner will automatically enter the defrost
cycle from time to time. During Automatic Defrosting operation, the
OPERATION Indicator Lamp (Fig. 3 5) will fl ash, and the heat operation will be interrupted.
After the start of heating operation, it takes some time before the
●
room gets warmer.
● Use to cool your room.
Use for gently cooling while dehumidifying your room.
●
You cannot heat the room during Dry mode.
●
During Dry mode, the indoor unit will operate at low speed; in order
●
to adjust room humidity, the indoor unit’s fan may stop from time
to time. Also, the fan may operate at very low speed when adjusting
room humidity.
The fan speed cannot be changed manually when Dry mode has
●
been selected.
Use to circulate the air throughout your room.
●
During Heating mode:
Set the thermostat to a temperature setting that is higher than the present room
temperature. The Heating mode will not
operate if the thermostat is set lower
than the actual room temperature.
During Cooling/Dry mode:
Set the thermostat to a temperature
setting that is lower than the present
room temperature. The Cooling and Dry
modes will not operate if the thermostat
is set higher than the actual room temperature (in Cooling mode, the fan alone
will operate).
During Fan mode:
You can not use the indoor unit to heat
and cool your room.
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TIMER OPERATION
Before using the timer function, be sure that the Remote Controller is set to the correct current time (☞ P. 5).
To Use the ON timer or OFF timer
Press the START/STOP button (Fig. 5 K)
1
(if the indoor unit is already operating, proceed to step 2).
The indoor unit’s OPERATION Indicator Lamp (green) (Fig. 3 5) will light.
Press the TIMER MODE button (Fig. 5 I) to select the
2
OFF timer or ON timer operation.
Each time the button is pressed the timer function changes in the fol-
lowing order:
CANCEL OFF ON
PROGRAM(OFF
The indoor unit’s TIMER Indicator Lamp (orange) (Fig. 3 6) will light.
Use the TIMER SET buttons (Fig. 5 O) to set the de-
3
sired OFF time or ON time.
Set the time while the time display is fl ashing (the fl ashing will continue
for about fi ve seconds).
button:
button:
About fi ve seconds later, the entire display will reappear.
▲
Press to advance the time.
Press to reverse the time.
▲
ON, OFF ← ON)
→
▲
▼
To Use the Program timer
To Cancel the Timer
Use the TIMER button to select “CANCEL”.
The indoor unit will return to normal operation.
To Change the Timer Settings
Perform steps 2 and 3.
To Stop Air Conditioner Operation while
the Timer is Operating
Press the START/STOP button.
To Change Operating Conditions
If you wish to change operating conditions
(Mode, Fan Speed, Thermostat Setting, SUPER QUIET mode), after making the timer
setting and waiting until the entire display
reappears, then press the appropriate
buttons to change the operating condition
desired.
Press the START/STOP button (Fig. 5 K)
1
(if the indoor unit is already operating, proceed to step 2).
The indoor unit’s OPERATION Indicator Lamp (green) (Fig. 3 5) will light.
Set the desired times for OFF timer and ON timer.
2
See the section “To Use the ON timer or OFF timer” to set the desired
mode and times.
About 3 seconds later, the entire display will reappear.
The indoor unit’s TIMER Indicator Lamp (orange) (Fig. 3 6) will light.
Press the TIMER MODE button (Fig. 5 I) to select the
3
PROGRAM timer operation (OFF ON or OFF ON
will display).
The display will alternately show “OFF timer” and “ON timer”, then
change to show the time setting for the operation to occur fi rst.
●
The program timer will begin operation. (If the ON timer has been selected to operate fi rst, the indoor unit will stop operating at this point.)
About fi ve seconds later, the entire display will reappear.
About the Program timer
●
The program timer allows you to integrate OFF timer and ON timer operations
in a single sequence. The sequence can involve 1 transition from OFF timer to
ON timer, or from ON timer to OFF timer, within a 24 hour period.
●
The fi rst timer function to operate will be the 1 set nearest to the current time.
The order of operation is indicated by the arrow in the Remote Controller's Display (OFF → ON, or OFF ← ON).
●
1 example of Program timer use might be to have the air conditioner automati-
cally stop (OFF timer) the operation after you go to sleep, then start (ON timer)
the operation automatically in the morning before you arise.
To Cancel the Timer
Use the TIMER MODE button to select
“CANCEL”.
The air conditioner will return to normal
operation.
To Change the Timer Settings
1.
Follow the instructions given in the section “To Use the ON Timer or OFF Timer”
to select the timer setting you wish to
change.
2. Press the TIMER MODE button to select
either OFF ON or OFF ON.
To Stop Air Conditioner Operation while
the Timer is Operating
Press the START/STOP button.
To Change Operating Conditions
If you wish to change operating conditions
(Mode, Fan Speed, Thermostat Setting, SUPER QUIET mode), after making the timer
setting and waiting until the entire display
reappears, then press the appropriate
buttons to change the operating condition
desired.
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SLEEP TIMER OPERATION
Unlike other timer functions, the SLEEP timer is used to set the length of time until air conditioner operation is stopped.
To Use the SLEEP Timer
While the air conditioner is operating or stopped, press the
SLEEP button (Fig. 5 H).
The indoor unit’s OPERATION Indicator Lamp (green) (Fig. 3 5) lights and the
TIMER Indicator Lamp (orange) (Fig. 3 6) light.
To Change the Timer Settings
Press the SLEEP button (Fig. 5 H) once again and set the time
using the TIMER SET ( / ) buttons (Fig. 5 O).
Set the time while the Timer Mode Display is fl ashing (the fl ashing will continue
about 5 seconds).
To Cancel the Timer:
Use the TIMER MODE button to select
“CANCEL”.
The air conditioner will return to normal
operation.
To Stop the Air Conditioner During Timer
Operation:
Press the START/STOP button.
button:
button:
Press to advance the time.
Press to reverse the time.
About fi ve seconds later, the entire display will reappear.
About the SLEEP Timer
To prevent excessive warming or cooling during sleep, the SLEEP timer function automatically modifi es the thermostat setting in accordance with the set time setting. When the set time has elapsed, the air conditioner completely stops.
During Heating operation:
When the SLEEP timer is set, the thermostat setting is
automatically lowered 2 °F every 30 minutes. When the thermostat setting is lowered a total of 8 °F, the thermostat setting at that time is maintained until the set time elapses, at
which time the air conditioner automatically turns off.
SLEEP timer setting
30
minutes
1 hour
1 hour
30 minutes
2 °F
4 °F
Set time
6 °F
8 °F
During Cooling/Dry operation:
When the SLEEP timer is set, the thermostat setting is automatically raised 2 °F every 1 hour. When the thermostat
setting is raised a total of 4 °F, the thermostat setting at that
time is maintained until the set time elapses, at which time
the air conditioner automatically turns off.
SLEEP timer setting
Set time
1 hour
2 °F
4 °F
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ADJUSTING THE DIRECTION OF AIR CIRCULATION
Vertical (up-down) direction of airfl ow is adjusted by pressing the Remote Controller's SET button. Horizontal (right-left) airfl ow direction is adjusted manually, by moving the Airfl ow Direction Louvers.
Whenever making horizontal airfl ow adjustments, start air conditioner operation and be sure that the vertical air direction
louvers are stopped.
Vertical Air Direction Adjustment
Press the SET button (Fig. 5 L).
Each time the button is pressed, the air direction range will change as follows:
1
Types of Airfl ow Direction Setting:
1, 2, 3, 4, 5, 6 : During Heating/Cooling/Dry modes
The Remote Controller's display does
not change.
Use the air direction adjustments within the ranges shown above.
●
The vertical airfl ow direction is set automatically as shown, in accordance with
●
the type of operation selected.
During Cooling/Dry mode
During Heating mode : Downward fl ow 6
During AUTO mode operation, for the fi rst a few minutes after beginning op-
●
eration, airfl ow will be horizontal 1; the air direction cannot be adjusted during
this period.
The Airfl ow direction setting will temporarily become 1 when the temperature
of the Airfl ow is low at the start of the Heating mode.
2 3 4 5 6
: Horizontal fl ow 1
1
2
3
4
5
6
DANGER!
Never place fingers or foreign objects
●
inside the outlet ports, since the internal
fan operates at high speed, and personal
injury could be caused.
Always use the Remote Controller's
●
SET button to adjust the vertical airflow louvers. Attempting to move
them manually could result in improper operation; in this case, stop operation and restart. The louvers should
begin to operate properly again.
During use of the Cooling and Dry
●
modes, do not set the Airfl ow Direction Louvers in the Heating range
(4 - 6) for many hours, since water
vapor may condense near the outlet
louvers and drops of water may drip
from the indoor unit. During the Cooling and Dry modes, if the Airfl ow Direction Louvers are left in the heating
range for more than 30 minutes, they
will automatically return to position 3.
When used in a room with infants,
●
children, elderly or sick persons, the
airfl ow direction and room temperature should be considered carefully
when making settings.
Right-Left Adjustment
Adjust the Right-Left louvers.
Move the Right-Left louvers to adjust airfl ow in the direction you prefer.
●
Right-Left Louvers
knob (2 places)
knob
CAUTION!
When adjusting the Right-Left Louvers, it
●
is necessary to stop the Vertical (up-down)
louvers fi rst and make sure that it stops
completely before adjusting the direction.
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SWING OPERATION
Begin air conditioner operation before performing this procedure.
To select SWING Operation
Press the SWING button (Fig. 5 M).
The SWING Display (Fig. 6 Y) will light.
In this mode, the Airfl ow Direction Louvers will swing automatically to direct the
airfl ow both up and down.
To stop SWING Operation
Press the SWING button (Fig. 5 M) once again.
The SWING Display (Fig. 6 Y) will go out.
Airfl ow direction will return to the setting before swing was begun.
About Swing Operation
During cooling/Dry mode : Swings between 1 and 4.
During heating mode : Swings between 4 and 6.
The SWING operation may stop temporarily when the air conditioner’s fan is not
●
operating, or when operating at very low speeds.
ECONOMY OPERATION
Begin Air Conditioner operation before performing this procedure.
To Use the ECONOMY Operation
Press the ECONOMY button (Fig.5 G).
The ECONOMY indicator Lamp (green) will light.
ECONOMY operation begins.
To Stop the ECONOMY Operation
● Indicator Lamp
OPERATION
TIMER
ECONOMY
: Lighting : OFF
Press the ECONOMY button (Fig.5 G) again.
The ECONOMY Indicator Lamp (green) (Fig. 3 7) will go out.
Normal operation begins.
About ECONOMY Operation
At the maximum output, ECONOMY Operation is approximately 70% of normal air conditioner operation for cooling and
heating.
If the room is not cooled (or heated) well during ECONOMY operation, select normal operation.
●
During the monitor period in the AUTO mode, the air conditioner operation will not change to ECONOMY operation
●
even if ECONOMY operation is selected by pressing the ECONOMY operation button.
When ECONOMY operation mode is operated, the room temperature will be little higher than the set-temp under cool-
●
ing mode and lower than set-temp under heating mode. Therefore, the ECONOMY mode is able to save more energy
than other normal mode.
In case of multi-type air conditioner, the ECONOMY operation mode is only available for the set indoor unit.
●
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MINIMUM HEAT OPERATION
To use MINIMUM HEAT OPERATION
Press the MIN. HEAT button (Fig.5 F)
The OPERATION indicator lamp (green) (Fig. 3 5) will go out, and the ECONOMY
indicator lamp (green) (Fig. 3 7) will light.
To stop MINIMUM HEAT OPERATION
While MINIMUM HEAT OPERATION
is in progress, only the following
operation can be used.
• SWING
• SLEEP
Press the START/STOP button (Fig.5 K)
Then the operation stops.
About the MINIMUM HEAT Operation
•
The Heating mode will not operate if the room temperature is high enough.
•
The room temperature can be maintained at 50 °F by pressing the MIN. HEAT
button (Fig.5 F) so as to prevent the room temperature from falling too far.
● Indicator Lamp
OPERATION
ECONOMY
: Lighting : OFF
MANUAL AUTO OPERATION
Use the MANUAL AUTO operation in the event the Remote Controller is lost or otherwise unavailable.
How To Use the Main Unit Controls
Press the MANUAL AUTO button (Fig. 2 2) more than
3 seconds and less than 10 seconds on the main unit control
panel.
To stop operation, press the MANUAL AUTO button (Fig. 2 2) for 3 seconds.
When the air conditioner is oper-
●
ated by the controls on the MANUAL
AUTO button, it will operate under
the same mode as the AUTO mode
selected on the Remote Controller
(see page 7).
The fan speed selected will be
●
“AUTO” and the thermostat setting
will be standard (76
TIMER
°F
).
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CLEANING AND CARE
Before cleaning the indoor unit, be sure to turn it off and disconnect the Power Supply Cord.
CAUTION!
●
Be sure the Intake Grille (Fig. 1 8) is installed securely.
●
When removing or replacing the air fi lters, be sure not to touch the heat exchanger, as person-
●
al injury may result.
Cleaning the Intake Grille
1. Remove the Intake Grille.
1 Place your fingers at both lower ends of the grille
panel, and lift forward; if the grille seems to catch
partway through its movement, continue lifting upward to remove.
2 Pull past the intermediate catch and open the Intake
Grille wide so that it become horizontal.
Intake Grille
Mounting
shaft
Knob
2. Clean with water.
Remove dust with a vacuum cleaner; wipe the indoor
unit with warm water, then dry with a clean, soft cloth.
3. Replace the Intake Grille.
1 Pull the knobs all the way.
2 Hold the grille horizontal and set the left and right
mounting shafts into the bearings at the top of the
panel.
3 Press the place where the arrow on the diagram in-
dicates and close the Intake Grille.
2
Mounting
1
3
shaft
Bearing
2
1
3
Cleaning the Air Filter
1. Open the Intake Grille, and remove the air
fi lter.
Lift up the air filter’s handle, disconnect the 2 lower
tabs, and pull out.
Air fi lter handle
Air fi lter (Right & Left)
Hooks(2 places)
2. Remove dust with a vacuum cleaner or by
washing.
After washing, allow to dry thoroughly in a shaded
place.
3. Replace the Air Filter and close the Intake
Grille.
1 Align the sides of the air fi lter with the panel, and
push in fully, making sure the 2 lower tabs are returned properly to their holes in the panel.
2 Close the Intake Grille.
(For purposes of example, the illustration shows the indoor unit without Intake Grille installed.)
Dust can be cleaned from the air filter either with a
●
vacuum cleaner, or by washing the fi lter in a solution of
neutral detergent and warm water. If you wash the fi lter,
be sure to allow it to dry thoroughly in a shady place
before reinstalling.
If dust is allowed to accumulate on the air fi lter, airfl ow will be
●
reduced, lowering operating effi ciency and increasing noise.
During periods of normal use, the Air Filters should be
●
cleaned every 2 weeks.
Don't operate the air conditioner with being opened the
●
intake grille.
Hooks(2 places)
Knob
When used for extended periods, the indoor unit may accumulate dust inside, reducing its performance. We recom-
●
mend that the indoor unit be inspected regularly, in addition to your own cleaning and care. For more information,
consult authorized service personnel.
When cleaning the indoor unit’s body, do not use water hotter than 104 °F, harsh abrasive cleansers, or volatile agents
●
like benzene or thinner.
Do not expose the indoor unit’s body to liquid insecticides or hairsprays.
●
When shutting down the indoor unit for 1 month or more, fi rst allow the fan mode to operate continuously for half a
●
day to allow internal parts to dry thoroughly.
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CLEANING AND CARE
Air Cleaning Filter Installation
1. Open the Intake Grille and remove the Air
fi lters.
2. Attach the air cleaning fi lter to the frame
of the front panel.
Attach the fi lter on the inside of the tabs (6 places)
●
so as not to stick out.
Air cleaning fi lter frame
Tabs (6 places)
Air
(In the above fi gure, the intake grille is omitted for
the explanation)
Cleaning
Filter
Tabs
(6 places)
3. Install the 2 Air filters and close the
Intake Grille.
Don't operate the air conditioner with being opened
●
the intake grille.
When air cleaning filters are used, the effect will in-
●
creased by setting the fan speed to “High”.
Replacing dirty Air cleaning fi lters
Replace fi lters with the following components (purchased
separately).
POLYPHENOL CATECHIN AIR CLEANING FILTER
●
Negative air ions deodorizing fi lter: UTR-FA16-2
●
: UTR-FA16
1. Open the Intake Grille and remove the Air
fi lters.
2. Remove the air cleaning fi lters attached to
the frames of the front panel.
Air cleaning fi lter frame
Air Cleaning Filter
3. Replace them by 2 new Air cleaning
fi lters.
Remove the old air cleaning fi lters in reverse order
1
of their installation.
Install in the same way as for installation of the air
2
cleaning fi lter set.
4. Install the 2 Air filters and close the
Intake Grille.
Don't operate the air conditioner with being opened
●
the intake grille.
About the Air Cleaning Filters
POLYPHENOL CATECHIN AIR CLEANING FILTER
The Air Cleaning Filters are disposable fi lters. (They can
●
not be washed and reused.)
For storage of the Air Cleaning Filters, use the fi lters as
●
soon as possible after opening the package.
(The air cleaning effect decreases when the fi lters are
left in the opened package)
Generally, the fi lters should be exchanged about every
●
3 months.
Please buy designed air cleaning fi lters (UTR-FA16) (Sold
separately) to exchange the used dirty air cleaning fi lter.
[Negative air ions deodorizing fi lter (1 sheet) — light blue]
The fi lter should be exchanged about every 3 years so
●
as to maintain the deodorizing effect.
Filter frame is not a one-off product.
●
Please buy designed deodorizing filter (UTR-FA16-2)
(Sold separately) when exchanging the fi lter.
(1 sheet)
Maintenance of Deodorizing Filters
In order to maintain the deodorizing effect, please clean
the fi lter in the follow way once 3 months.
Remove the deodorizing fi lter.
1
Clean with water and dry in the air.
2
1) Flush the fi lter with high-pressure hot water until the surface of the fi lter is covered with water.
Please fl ush with diluent neutral detergent.
Never wash by reaming or rubbing, otherwise
it will damage the deodorizing effect.
2) Rinse with water fl ow.
3) Dry in shade.
Reinstall the deodorizing fi lter.
3
Filter Indicator Reset (A special setting)
Can be used if set correctly during installation.
Please consult authorized serviceman when using this function.
• It lights on when it is time to clean the air fi lters.
Clean the fi lter referring to “CLEANING AND CARE”.
After cleaning, press the MANUAL AUTO button(Fig.2
2 ) for 2 seconds or less on the indoor unit.
● Indicator Lamp
OPERATION
TIMER
ECONOMY
: Flashing : OFF
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TROUBLESHOOTING
WARNING!
Before requesting service, perform the following checks:
NORMAL
FUNCTION
Doesn’t operate immediately:
Noise is heard:
Smells:
Mist or steam is
emitted:
Airfl ow is weak or stops:
Water is produced from
the outdoor unit:
In the event of a malfunction (burning smell, etc.), immediately stop operation, turn off the
electrical breaker and consult authorized service personnel.
Merely turning off the unit’s power switch will not completely disconnect the unit from the power
source. Always be sure to turn off the electrical breaker to ensure that power is completely off.
Symptom Problem
If the indoor unit is stopped and then immediately started again,
●
the compressor will not operate for about 3 minutes, in order to
prevent fuse blowouts.
Whenever the electrical breaker is turned off then on again the
●
protection circuit will operate for about 3 minutes, preventing
unit operation during that period.
During operation or immediately after stopping the unit, the
●
sound of water flowing in the air conditioner’s piping may be
heard. Also, noise may be particularly noticeable for about 2 to 3
minutes after starting operation (sound of refrigerant fl owing).
During operation, a slight squeaking sound may be heard. This
●
is the result of minute expansion and contraction of the front
panel due to temperature changes.
During Heating operation, a sizzling sound may be heard occasion-
●
al. This sound is produced by the Automatic Defrosting operation.
Some smell may be emitted from the indoor unit. This smell is
●
the result of room smells (furniture, tobacco, etc.) which have
been taken into the indoor unit.
During Cooling or Dry operation, a thin mist may be seen emit-
●
ted from the indoor unit. This results from the sudden Cooling of
room air by the cool air emitted from the indoor unit, resulting
in condensation and misting.
During Heating operation, the outdoor unit’s fan may stop, and
●
steam may be seen rising from the unit. This is due to Automatic
Defrosting operation.
When Heating operation is started, fan speed is temporarily very
●
low, to allow internal parts to warm up.
During Heating operation, if the room temperature rises above
●
the thermostat setting, the outdoor unit will stop, and the indoor
unit will operate at very low fan speed. If you wish to warm the
room further, set the thermostat for a higher setting.
During Heating operation, the indoor unit will temporarily stop
●
operation (between 7 and 15 minutes) as the Automatic Defrosting mode operates. During Automatic Defrosting operation, the
OPERATION Indicator Lamp will fl ash.
During Dry mode, the indoor unit will operate at low speed; in
●
order to adjust room humidity, the indoor unit’s fan may stop
from time to time. Also, the fan may operate at very low speed
when adjusting room humidity.
During SUPER QUIET operation, the fan will operate at very low speed.
●
In the monitor of AUTO operation, the fan will operate at very
●
low speed.
In case of Multi-type unit, if multiple units are operated in different
●
operation modes as shown below, the units operated afterward
will stop and the OPERATION indicator lamp (green) will fl ash.
Heating mode and cooling mode (or dry mode)
Heating mode and fan mode
During Heating operation, water may be produced from the out-
●
door unit due to Automatic Defrosting operation.
See Page
—
—
16
—
—
16
—
16
7
6
7
17
16
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TROUBLESHOOTING
Symptom Items to check
CHECK ONCE
MORE
If the problem persists after performing these checks, or if you notice burning smells, or the OPERATION Indicator Lamp
(Fig. 3 5) and the TIMER Indicator Lamp (Fig. 3 6) fl ashes, and ECONOMY Indicator Lamp(Fig.3 7) fl ashes fast. immediately stop operation, turn off the electrical breaker and consult authorized service personnel.
Doesn’t operate at all:
Poor Cooling (or Heating)
performance:
The unit operates
differently from the Remote
Controller’s setting:
Has the circuit breaker been turn off?
●
Has there been a power failure?
●
Has a fuse blown out, or a circuit breaker been tripped?
●
Is the timer operating? 8 - 9
●
Is the Air Filter dirty?
●
Are the air conditioner’s intake grille or outlet port blocked?
●
Did you adjust the room temperature settings (thermostat) cor-
●
rectly?
Is there a window or door open?
●
In the case of Cooling operation, is a window allowing bright
●
sunlight to enter? (Close the curtains.)
In the case of Cooling operation, are there heating apparatus
●
and computers inside the room, or are there too many people in
the room?
Is the unit set for SUPER QUIET operation? 6
●
Are the Remote Controller’s batteries dead?
●
Are the Remote Controller’s batteries loaded properly?
●
See Page
—
—
5
OPERATING TIPS
Operation and Performance
Heating Performance
This air conditioner operates on the heat-pump princi-
●
ple, absorbing heat from outdoor air and transferring
that heat to indoor unit. As a result, the operating performance is reduced as outdoor air temperature drops.
If you feel that insuffi cient heating performance is being
produced, we recommend you use this air conditioner
in conjunction with another kind of heating appliance.
Heat-pump air conditioners heat your entire room by
●
recirculating air throughout the room, with the result
that some time may be required after fi rst starting the
air conditioner until the room is heated.
Microcomputer-controlled Automatic Defrosting
When using the Heating mode under conditions of low
●
outdoor temperature and high humidity, frost may form
on the outdoor unit, resulting in reduced operating performance.
In order to prevent this kind of reduced performance,
this air conditioner is equipped with a Microcomputercontrolled Automatic Defrosting function. If frost forms,
the air conditioner will temporarily stop, and the defrosting circuit will operate briefl y (for about 7-15 minutes).
During Automatic Defrosting operation, the OPERATION
Indicator Lamp (green) will fl ash.
After heating operation stops, if frost forms on the out-
●
door unit, the unit will start Automatic Defrosting operation. At this time, the outdoor unit will automatically
stop after operating for a few minutes.
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