ARC445 Series
7. ARC445 Series
ARC445A1, A3
Si10-416A
176 Remote Controllers
Si10-416A ARC445 Series
1. Signal transmitter
It sends signals to the indoor unit.
2. Display
It displays the current settings.
(In this illustration, each section is shown with all its displays ON for the purpose of explanation.)
3. POWERFUL button
for POWERFUL operation
4. ON/OFF button
Press this button once to start operation.
Press once again to stop it.
The button glows even in dark rooms.
5. TEMPERATURE adjustment buttons
It changes the temperature setting.
6. MODE selector button
It selects the operation mode.
(AUTO/DRY/COOL/HEAT/FAN)
7. FAN setting button
It selects the air flow rate setting.
8. SWING button
9. ON TIMER button
10. OFF TIMER button
11. TIMER CANCEL button
It cancels the timer setting.
Unit operation panel and display panel
ON/OFF switch TIMER Lamp(yellow)
ON
OFF
Operation lamp(green) Signal receiver
Remote Controllers 177
Si10-416A ARC445 Series
6. ARC445 Series
6.1 Preparation Before Operation
Q To set the batteries
1. Pull the tabs on top down and open the lid.
2. Set two dry batteries (AAA).
3. Insert the two tabs in the bottom of the lid and close the lid as it was before.
1
Top tab
Lower tabs
(2 places)
3
2
Operation 297
ARC445 Series Si10-416A
ATTENTION
Q About batteries
• When replacing the batteries, use batteries of the same type, and replace the two old batteries together.
• When the system is not used for a long time, take the batteries out.
• We recommend replacing once a year, although if the remote controller display begins to fade or if reception deteriorates, please replace with new alkali batteries. Do not use manganese batteries.
• The attached batteries are provided for the initial use of the system.
The usable period of the batteries may be short depending on the manufactured date of the air conditioner.
298 Operation
Si10-416A ARC445 Series
Q To operate the remote controller
• To use the remote controller, aim the transmitter at the indoor unit. If there is anything to block signals between the unit and the remote controller, such as a curtain, the unit will not operate.
• Do not drop the remote controller. Do not get it wet.
• The maximum distance for communication is about 7m.
Receiver
Operation 299
ARC445 Series
Q To fix the remote controller
holder on the wall
1. Choose a place from where the signals reach the unit.
2. Fix the holder to a wall, a pillar, or similar location with the screws procured locally.
3. Place the remote controller on the bottom tabs of the remote controller holder and push.
2 Push
• To remove,
Pull it upwards.
1 Set
Si10-416A
ATTENTION
Q About remote controller
• Never expose the remote controller to direct sunlight.
• Dust on the signal transmitter or receiver will reduce the sensitivity. Wipe off dust with soft cloth.
• Signal communication may be disabled if an electronic-startertype fluorescent lamp (such as inverter-type lamps) is in the room. Consult the shop if that is the case.
• If the remote controller signals happen to operate another appliance, move that appliance to somewhere else, or consult the shop.
300 Operation
Si10-416A ARC445 Series
Q Turn the breaker ON
• Turning ON the breaker opens the flap, then closes it again.
(This is a normal procedure.)
NOTE
Q Tips for saving energy
• Be careful not to cool (heat) the room too much.
Keeping the temperature setting at a moderate level helps save energy.
• Cover windows with a blind or a curtain.
Blocking sunlight and air from outdoors increases the cooling
(heating) effect.
• Clogged air filters cause inefficient operation and waste energy. Clean them once in about every two weeks.
Recommended temperature setting
For cooling: 26˚C – 28˚C
For heating: 20˚C – 24˚C
Q Please note
• The air conditioner always consumes 15-35 watts of electricity even while it is not operating.
• If you are not going to use the air conditioner for a long period, for example in spring or autumn, turn the breaker OFF.
• If the flap opens, turn on the breaker to close it.
• Use the air conditioner in the following conditions.
Mode Operating conditions
COOL Outdoor temperature: 15 to 46˚C
Indoor temperature: 18 to 32˚C
Indoor humidity: 80% max.
HEAT Outdoor temperature: –10 to 20˚C
Indoor temperature: 14 to 28˚C
DRY Outdoor temperature: 15 to 46˚C
Indoor temperature: 18 to 32˚C
Indoor humidity: 80% max.
If operation is continued out of this range
• A safety device may work to stop the operation.
• Condensation may occur on the indoor unit and drip.
• A safety device may work to stop the operation.
• A safety device may work to stop the operation.
• Condensation may occur on the indoor unit and drip.
• Operation outside this humidity or temperature range may cause a safety device to disable the system.
Operation 301
ARC445 Series Si10-416A
6.2 AUTO • DRY • COOL • HEAT • FAN
Operation
The air conditioner operates with the operation mode of your choice.
From the next time on, the air conditioner will operate with the same operation mode.
2, 3
1
4
5
302 Operation
Si10-416A ARC445 Series
Q
To start operation
1. Press “MODE selector button” and select a operation mode.
• Each pressing of the button advances the mode setting in sequence.
: AUTO
: DRY
: COOL
: HEAT
: FAN
<FTN>
<FTYN>
2. Press “ON/OFF button” .
• The OPERATION lamp lights up.
Q
To stop operation
3. Press “ON/OFF button” again.
• Then OPERATION lamp goes off.
Operation 303
ARC445 Series Si10-416A
Q To change the temperature setting
4. Press “TEMPERATURE adjustment button”.
DRY or FAN mode
The temperature setting is not variable.
AUTO or COOL or HEAT mode
Press “ ” to raise the temperature and press “ ” to lower the temperature.
Set to the temperature you like.
Q To change the air flow rate setting
5. Press “FAN setting button”.
DRY mode
The air flow rate setting is not variable.
AUTO or COOL or HEAT or FAN mode
Three levels of air flow rate setting from “ ” to “ ” plus “ ” are available.
304 Operation
Si10-416A ARC445 Series
Q Settings using the indoor unit
operation switches
The main body operation switch should only be used in emergencies when the remote control is lost or broken, its battery has run out, or it is otherwise unusable.
Operation mode
• Pressing the main body operation switch cycles through the following operation modes.
Heat pump : cooling → off → heating → off → cooling
Cooling : cooling → off → cooling
Since the operation mode is not displayed, you have to judge what mode the unit is in by feeling whether the air coming out of the vent is cold or hot.
Swing Setting
• The unit will operate with the previous setting.
NOTE
• If the settings were made with the operation switch, the
ON/OFF TIMER operation and NIGHT SET MODE are cleared.
Operation 305
ARC445 Series Si10-416A
NOTE
Q Note on HEAT operation
• Since this air conditioner heats the room by taking heat from outdoor air to indoors, the heating capacity becomes smaller in lower outdoor temperatures. If the heating effect is insufficient, it is recommended to use another heating appliance in combination with the air conditioner.
• The heat pump system heats the room by circulating hot air around all parts of the room. After the start of heating operation, it takes some time before the room gets warmer.
• In heating operation, frost may occur on the outdoor unit and lower the heating capacity. In that case, the system switches into defrosting operation to take away the frost.
• During defrosting operation, hot air does not flow out of indoor unit.
Q Note on COOL operation
• This air conditioner cools the room by blowing the hot air in the room outside, so if the outside temperature is high, performance drops.
Q Note on DRY operation
• The computer chip works to rid the room of humidity while maintaining the temperature as much as possible. It automatically controls temperature and fan strength, so manual adjustment of these functions is unavailable.
Q Note on AUTO operation
• In AUTO operation, the system selects an appropriate operation mode (COOL or HEAT) based on the room temperature at the start of the operation.
• The system automatically reselects setting at a regular interval to bring the room temperature to user-setting level.
• If you do not like AUTO operation, you can manually select the operation mode and setting you like.
Q Note on air flow rate setting
• At smaller air flow rates, the cooling (heating) effect is also smaller.
306 Operation
Si10-416A ARC445 Series
6.3 Adjusting the Air Flow Direction
You can adjust the air flow direction to increase your comfort.
1, 2
Operation 307
ARC445 Series Si10-416A
Q To adjust the horizontal
blades (flaps)
1. Press “SWING button”.
The display will light up and the flaps will begin to swing.
2. When the flaps have reached the desired position, press “SWING button” once more.
The display will go blank.
The flaps will stop moving.
Q To adjust the vertical
blades (louvers)
Hold the knob and move the louvers.
(You will find a knob on the left-side and the right-side blades.)
308 Operation
Si10-416A ARC445 Series
Notes on flaps and louvers angles
• When “SWING button” is selected, the flaps swinging range depends on the operation mode. (See the figure.)
Q ATTENTION
• Always use a remote controller to adjust the flaps angle. If you attempt to move it forcibly with hand when it is swinging, the mechanism may be broken.
• Be careful when adjusting the louvers. Inside the air outlet, a fan is rotating at a high speed.
• When changing the operation mode in automatic operation, the swings may move in order to correct the angle.
In DRY mode or COOL mode
When stop operation
Upper limit in cooling
Lower limit cooling
0˚
25˚
In HEAT or FAN mode
When stop operation
5˚
Upper limit in heating
Lower limit heating
30˚
Operation 309
ARC445 Series Si10-416A
6.4 POWERFUL Operation
POWERFUL operation quickly maximizes the cooling (heating) effect. You can get the maximum capacity.
1, 2
310 Operation
Si10-416A ARC445 Series
Q To start POWERFUL operation
1. Press “POWERFUL button”.
• POWERFUL operation ends in 20 minutes.
Then the system automatically operates again with the settings which were used before POWERFUL operation.
• When using POWERFUL operation, there are some functions which are not available.
• “ ” is displayed on the LCD.
Q To cancel POWERFUL operation
2. Press “POWERFUL button” again.
• “ ” disappears from the LCD.
NOTE
Q Notes on POWERFUL operation
• POWERFUL operation is not available in modes other than cooling or heating.
• In COOL and HEAT mode
To maximize the cooling (heating) effect, the air flow rate be fixed to the maximum setting.
The temperature and air flow settings are not variable.
Operation 311
ARC445 Series Si10-416A
6.5 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.
312 Operation
Si10-416A ARC445 Series
Q To use OFF TIMER operation
1. Press “OFF TIMER button”.
The TIMER lamp lights up.
• The time changes in 1 hour increments every time the button is pushed, with a maximum of 9 hours.
Q To cancel the OFF TIMER
operation
2. Press “CANCEL button”.
• The TIMER lamp goes off.
NOTE
Q NIGHT SET MODE
When the OFF TIMER is set, the air conditioner automatically adjusts the temperature setting (1.0˚C up in COOL, 1.0˚C down in HEAT) to prevent excessive cooling (heating) for your pleasant sleep.
Operation 313
ARC445 Series
Q To use ON TIMER operation
1. Press “ON TIMER button”.
The TIMER lamp lights up.
• The time changes in 1 hour increments every time the button is pushed, with a maximum of 12 hours.
Si10-416A
314 Operation
Si10-416A ARC445 Series
Q To cancel ON TIMER operation
2. Press “CANCEL button”.
• The TIMER lamp goes off.
Q To combine ON TIMER and
OFF TIMER
• A sample setting for combining the two timers is shown below.
⟨ Example⟩
The air conditioner is currently operating. You want to have it run for another hour, then stop for 7 hours, then start up again.
ATTENTION
Q In the following cases, set the timer again.
• After a breaker has turned OFF.
• After a power failure.
• After replacing batteries in the remote controller.
Operation 315
