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12. Operation Manual
Safety Precautions
n Read the following warnings and cautions carefully n n
before operating the system and use it correctly. This manual classifies the precautions to the user into the following two categories. After reading this manual, keep it in a place easily accessible to the user for future reference.
WARNING CAUTION
Failure to follow a warning is very likely to result in such grave consequences as death or serious injury. [. . . ] Moreover, for precedence-room settings, please consult the service shop where you bought the unit. Precedence-room setting is applied to only 4MX80, 4MK90.
Display
l Pressing the (POWERFUL) button during operation starts
POWERFUL operation.
l POWERFUL operation ends in 20 minutes.
before POWERFUL operation.
Then the system
automatically operates again with the settings which were used
1
Press
.
l COOL/HEAT mode
This mode is used to set the unit to only cool or heat. For information on using this mode, consult the service shop where you bought the unit. COOL/HEAT mode is applied to only 4MX80, 4MK90.
n To cancel
Press
POWERFUL operation:
.
Notes on POWERFUL operation
NOTE
<Note for heat pump multi system>
When two or more indoor units have no precedence-room settings and are set to modes that differ from each other, the indoor unit which is operated first activates, while the other indoor unit does not activate and the OPERATION lamp blinks. (This is not a malfunction. ) An indoor unit that is not in operation will automatically start and operate in the mode in which a previously operated indoor unit was stopped. However, if the unit in operation provides only COOL and DRY modes, simultaneous operation is possible.
l In COOL and HEAT mode
To maximize the cooling and heating effect, the capacity of outdoor unit must be increased and the air flow rate be fixed to the maximum setting. The temperature and air flow settings are not variable.
l In DRY mode
The temperature setting is lowered by 3°C and the air flow rate is slightly increased.
l In FAN mode
The air flow rate is fixed to the maximum setting.
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Adjusting the Air Flow Direction
You can adjust the air flow direction to increase your comfort.
Adjusting the louvre
Adjusting the horizontal blade (flap)
Press
SWING .
" appears or disappears.
l Every time the button is pressed, "
. . . . . . .
The flap automatically swings up and down.
ON
Hold the knob and move the louvre. (You will find a knob on the left-side and the right-side blades. )
. . . . . . .
To stop the flap at an angle you like, press
SWING
.
ATTENTION
l Be careful when adjusting the louvre.
Inside the air outlet, a fan is rotating at a high speed.
ON
Notes on flap angles
l When
SWING
is selected, the flap swinging range depends
l The real flap angles are differ from the display of remote
controller.
on the operation mode. (See the figure. )
In DRY mode or COOL mode
When stop operation Upper limit in cooling Lower limit in cooling
0° 25°
In HEAT or FAN mode
When stop operation
20° Upper limit in heating 45° Lower limit in heating
ATTENTION
l Always use a remote controller to adjust the flap angle. If
you attempt to move it forcibly with hand when it is swinging, the mechanism may be broken.
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Timer Operation
Timer functions are useful for automatically switching the air conditioner on or off at night or in the morning. You can also use OFF TIMER and ON TIMER in combination.
l Check that the clock is correct. If not, set the clock to the present
time (See page 7).
ON TIMER operation
OFF TIMER operation
l Chec k that the clock is correct.
If not, set the clock to the present time. (See page 7. )
1
AM
Press ON while the air conditioner is not operating.
Display
1
AM
AM
is displayed. blinks.
Press OFF while the air conditioner is operating.
Display
AM
is displayed. blinks.
2 3
AM
* Previous time setting appears on display.
Press
TIMER
until the time setting
* Previous time setting appears on display.
2
l Every pressing of either button increases or decreases
the time setting by 10 minutes. Holding down either button changes the setting rapidly.
reaches the point you like.
Press
TIMER
until the time setting
Press
ON
Display
once again.
ON OFF
Then the TIMER lamp lights up.
l Every pressing of either button increases or decreases
the time setting by 10 minutes. Holding down either button changes the setting rapidly.
reaches the point you like.
3
AM
Press OFF once again.
ON OFF
Then the TIMER lamp lights up.
Display
n To cancel the timer:
Press CANCEL .
Then the TIMER lamp goes off.
l A sample setting for combining the two timers is shown below.
(Example)
Present time: 11:00 PM (The unit operating)
Combining ON TIMER and OFF TIMER
n To cancel the timer:
Press CANCEL .
Then the TIMER lamp goes off.
OFF TIMER at 0:00 a. m.
Notes on OFF TIMER
When the OFF TIMER is set, the air conditioner automatically adjusts the temperature setting (0. 5ºC up in COOL, 2. 0°C down in HEAT) to prevent excessive cooling (heating) for your pleasant sleep.
AM
AM
Notes on ON, OFF TIMER
l When TIMER is set, the present time is not displayed. (The memory is canceled when remote controller batteries are replaced. )
n In the following cases, set the timer again. l After replacing batteries in the remote controller.
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ATTENTION
Display
l NIGHT SET MODE
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Good Sleep Cooling Operation (G-SLEEP)
·The "Good Sleep Cooling Operation" makes the 1/f Fluctuating Temperature. It brings you comfortable sleep as it prevents from getting chilied.
1
Press
-SLEEP
in cooling operation.
n To change the temperature setting. (See page 10. ) n To cancel the "Good Sleep Cooling Operation ", press
Back to the normal cooling opration.
-SLEEP
.
Notes on "Good sleep cooling operation " l We adopt the 1/f fluctuation rhythm in temperature control.
A 1/f fluctuation rhythm is used in temperature control. [. . . ] (OPERATION lamp is on)
n For system protection, the air conditioner may stop
operating on a sudden large voltage fluctuation. It automatically resumes operation in about 3 minutes.
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Trouble Shooting
l Check again
Please check again before calling a repair person.
Case
The air conditioner does not operate . (OPERATION lamp is off)
Check
l Hasn't a breaker turned OFF or a fuse blown?(See page 6 "Preparation Before Operation". ) l Is the timer setting correct? [. . . ]