Hitachi air Home RC-AGU1EA0S User manual

Instruction manual Page 1~26
To obtain the best performance, please read this instruction manual completely.
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REMOTE
CONTROLLER
MANUAL
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RC MANUAL AGU1EA0S COVER.indd 1RC MANUAL AGU1EA0S COVER.indd 1 2022-08-01 10:12 AM2022-08-01 10:12 AM

– 2 –
Names and Functions of Remote Controller
■This remote controller controls the operation and timer setting of the room air conditioner. The operating
range of the remote controller from the indoor unit is 7m. If indoor lighting is used, the range may be
shorter.
Precautions for Use
●Do not put the remote controller under direct sunlight and high temperature.
●Do not drop it on the floor, and protect it from water.
●If you press the FUNCTON button during operation, the air conditioner may stop for about 3 minutes
for protection before you can start it again.
Mode Selector Button
Use this button to select the
operation mode. Every time you
press this button, the mode will
change from (Cool) ➞
(Dry) ➞(Fan) ➞
(A.Cir) cyclically. ( Page 3 ~ 5)
GoodSleep Button
(Page 13)
Invalid Operation Sign
Shown at invalid setting or operation
Transmission Sign
The transmission sign blinks
when a signal has been sent.
On/Off Button
Press this button to start
operation.
Press it again to stop operation.
(Page 3)
TEMPERATURE Button
Room temperature setting.
Value will change quicker when
you keep pressing.
(Page 3)
FAN SPEED Button
Select the fan speed.
(Page 3)
UP/DOWN Button
Controls the angle of the
horizontal air deflector.
(Page 14)
Off Mode Sign
SILENT Button (Page 12)
RESET Button
(Page 17)
FrostWash Button
(Page 8)
Filter Sign Reset Button
(Page 17)
Power SAFE Button
(Page 11)
Refresh Button
(Page 10)
On Timer Button
Select the turn ON time.
(Page 6)
Off Timer Button
Select the turn OFF time.
(Page 6)
Signal Transmission
Left/Right Button
(Page 14)
Powerful Button
(Page 7)

– 3 –
VARIOUS FUNCTIONS
■Auto Restart Control
●If there is a power failure, operation will be automatically restarted when the power is resumed with
previous operation mode and airflow direction.
(As the operation is not stopped by remote controller.)
●If you intend not to continue the operation when the power is resumed, switch off the power supply.
When you switch on the circuit breaker, the operation will be automatically restarted with previous operation
mode and airflow direction.
Note: 1. If you do not require Auto Restart Control, please consult your sales agent.
2. Auto Restart Control is not available when Timer or GoodSleep Timer is set.
Cool Mode
Use the room air conditioner for cooling when the outdoor temperature is 21°to 46°C.
If indoor humidity is very high (80%), some dew may form on the air outlet grille of the indoor unit.
Press the Mode Selector button so that the display indicates
(COOL) .
■As the settings are stored in the memory of the remote controller, you only
have to press the (On/Off) button next time.
■During Auto fan, the fan speed automatically changes as below:
●When the difference between room temperature and setting temperature
is large, fan starts to run at Super High speed.
●The fan Speed changes to a lower speed when the room temperature
reaches the preset temperature.
This is to maintain optimum room temperature condition for cooling.
1
2
3
Set the desired Fan Speed with the (Fan Speed) button.
(the display indicates the setting).
(Auto) (Silent) (Low)
(Super High) (High) (Medium)
Set the desired room temperature with the Temperature buttons.
(the display indicates the setting).
The temperature setting and the actual room temperature may vary
depending on conditions.
Temperature range can be set between 16.0°C and 32°C.
Press the (On/Off) button. Cooling operation starts with a
beep. Press the button again to stop operation. The cooling function
does not start if the temperature setting is higher than the current
room temperature (even though the (Operation) lamp lights).
The cooling function will start as soon as you set the temperature
below the current room temperature.
START
STOP

– 4 –
Dry Mode
Use the room air conditioner for dehumidifying when the room temperature is over 16°C.
When it is under 15°C, the dehumidifying function does not work.
Press the Mode Selector button so that the display indicates
(Dry).
The fan speed is set at Auto.
Press (Fan Speed) button to select Silent, Low or Auto
fan speed.
Set the desired room temperature with the Temperature buttons.
(the display indicates the setting).
The range 20.0°C to 26°C is recommended as
the room temperature for dehumidifying.
Temperature range can be set between 16.0°C
and 32.0°C.
Press the (On/Off) button. Dehumidifying operation starts
with a beep. Press the button again to stop operation.
●When the room temperature is higher than the set temperature, the device dehumidifies the room, reducing
the room temperature to the preset level.
When the room temperature is lower than the set temperature, dehumifying is performed at the temperature
setting slightly lower than the actual room temperature, regardless of the temperature setting.
●The preset room temperature may not be reached depending on the number of people present in the room
or other room conditions.
START
STOP
■As the settings are stored in the memory of the remote controller,
you only have to press the (On/Off) button next time.
■Dehumidifying Function
1
2

– 5 –
Press the (Fan Speed) button.
Fan Mode
Air Circulation Mode
User can use the device simply as an air circulator.
Press the Mode Selector button so that the display indicates
(Fan) .
Press the (Mode Selector) button so that the display indicates
(Air Circulation).
Press (Fan Speed) button and select the desired fan speed
(the display indicates your choice).
1
1
2
2
3
START
START
STOP
STOP
(Silent) (Low) (Medium)
(Super High) (High)
Press the (On/Off) button. Fan operation starts with a beep.
Press the button again to stop operation.
Press the temperature control button to set to the desired temperature.
The temperature can be set from 16°C ~ 32°C.
Press the (On/Off) button to stop operation.
■During circulation operation, compressor will not be running and there is
no cooling operation with only indoor fan running.
■When the setting temperature is higher than room temperature, indoor fan
will stop running.

– 6 –
Timer Reservation
■ON Timer and OFF Timer are available.
Off Timer setting
●Select the Off Timer by pressing the Button.
●Setting time will change according to the below sequence
when you press the button.
On Timer setting
●Select the On Timer by pressing the Button.
●Setting time will change according to the below sequence
when you press the button.
Timer Reservation
1
2
Set Temp. 0.5Hr 1.0Hr 2.0Hr 10.0Hr 11.0Hr 12.0Hr
Cancel OFF Timer
■Operation stops at set time
■Operation starts at set time and
temperature
NOTE
●During setting timer, if you do not press any button for 3 seconds then it will come out of setting timer
mode with preset time.
And On Timer icon “ ” or Off Timer icon “ ” will remain on LCD to indicate timer setting.
●During setting timer, if you press active button then it will come out immediately with timer setting.
●Timer On and Timer Off can be set simultaneously.
●When both timer set simultaneously then arrow “ ” mark will appear on LCD appear near “ ”
or ” ” which will execute first.
●On Timer or Off Timer can be canceled without long scrolling by pressing On Timer and Off Timer
button together for 3 seconds.
Set Temp. 0.5Hr 1.0Hr 2.0Hr 10.0Hr 11.0Hr 12.0Hr
Cancel ON Timer

– 7 –
Powerful Operation
●By pressing (Powerful) button during Cool, Dry, Fan or Air Circulation, the air conditioner performs at
maximum power.
●During Powerful operation, cooler air blows out from the indoor unit for COOLING operation.
Press the (Powerful) button during operation.
●“ ” is displayed on the LCD.
Powerful operation ends in 20 minutes. Then, the system
automatically operates with the previous settings used before
Powerful operation.
●During POWERFUL operation, cooler air blows out from the
indoor unit for COOLING operation.
●Press the (On/Off) button or
●Press the (Powerful) button again.
“ ” disappears from the LCD.
START
CANCEL
NOTE
●When Silent Mode or GoodSleep Timer is selected, Powerful Operation will be cancelled.
●During Powerful operation, capacity of the air conditioner will not increase
– if the air conditioner is already running at maximum capacity.
●After auto restart, POWERFUL operation is cancelled and unit will operate with previous operation.

– 8 –
FrostWash Operation
The process of FrostWash
FROST WASH ends
Operation is
stopped
Operation is started
120 min (max)
FROST WASH operation Unit remain in standby mode
●“ ” lamp on the indoor unit lights up during FrostWash operation.
●When pressing “On/Off” button during FrostWash operation, FrostWash will stop.
●In order to protect the product, FrostWash function cannot be carried out again for about 60 minutes after FrostWash
operation is completed.
is pressed
■FrostWash(Manual Mode)
■How to start and cancel FrostWash (Manual mode)
When the unit is off, press (FrostWash) button, manual FrostWash will start.
●Press the FrostWash button , FrostWash display on LCD
screen.
FrostWash operation start with beep sound and “ ” lamp light up on
the indoor unit.
●After one hour, “ ” disappears from the LCD. After about two hours,
the indoor unit will stop FrostWash operation.
●In order to protect the product, FrostWash function cannot be carried out
again for about 60 minutes after the FrostWash operation is completed.
●Press the (On/Off) button, the operation will stop.
“ ” lamp on the indoor unit turns off.
●Do not open windows or doors during FrostWash operation. Water will condense on the air deflector and drips down
occasionally. This will wet your furniture.
●Do not open or remove the front panel during FrostWash operation. It may cause injury or malfunction.
●FrostWash operation does not wash away all dust and dirt.
●Hissing, fizzy or squeaking noise may generate during FrostWash operation.
●If the air conditioner is continuously running, FrostWash function is not effective.
●During FrostWash operation, if power is turned off and then power is restored, FrostWash function will not restart.
●After turning on the power, please wait a moment if you want to start FrostWash.
●If On Timer or Off Timer is set, there is a need to cancel those timer before operating FrostWash.
1
2
Precautions for Use
●The dust and dirt adhere to indoor heat exchanger are some of the causes of the odor. They are washed away by
freezing and thawing of the heat exchanger.
●FrostWash operation can work when the outdoor temperature is 21° to 43°C.
●When FrostWash could not be executed and the LED is blinking for 10s (1s ON, 1s OFF), it maybe be due to the
outdoor temperature to be out of range.
Normal operation

– 9 –
Mold Guard Operation
●After the cooling operation is stopped, the fan of the indoor unit is dried by fan mode to suppress the generation of
mold inside the indoor unit.
– Mold Guard Operation period is about 1 hour.
– It can’t remove mold or sterilize.
●“ ” Lamp on the indoor unit lights up during Mold Guard operation.
●When the air conditioner operates in cooling or drying mode for more than 10 minutes and then put into off mode,
the mold guard operation will start.
●Room temperature or humidity may rise
Running Stop
Cooling or Dehumidify
operation Mold Guard
More than 10 min. About 60 min.
The Process of Mold Guard
For setting
●Press the button and (On Timer) button 3 seconds together
during air conditioner operation stop.
●“ ” is displayed on the LCD.
For cancelling
●Press the button and (On Timer) button 3 seconds together
during air conditioner operation stop.
●“ ” is disappear on the LCD.
●Once Mold Guard function set, Mold Guard icon will always display on the
LCD. And it stored in the memory of remote controller and remain set even
after reset or battery replacement case. It is one time setting procedure to
use this function.
●Press the (On/Off) button twice, the operation will stop.
●“ ” Lamp on the indoor unit turns off. But setting for Mold Guard
will not cancel, it will stop the current operation only.
■How to set and cancel Mold Guard
■How to stop at middle point of Mold Guard operation
1
3
2
NOTE
●If operation of Unit is stop by Off Timer or GoodSleep Timer, the Mold Guard will not operate.
●If On Timer is set and on time is within about 2 hours, the Mold Guard will not operate.
●Depending on situation, Mold Guard will operate with Fan Mode.
●Room temperature or humidity may rise.
●When there is window near the indoor unit, the water might condense on the window during Mold
Guard. If necessary, cancel Mold Guard.
The deflector remains open.

– 10 –
Refresh Mode Operation
(a) During COOLING operation, press the to allow unit to start
REFRESH Operation.
(b) REFRESH operation starts with a beep and icon is displayed on the
LCD.
(c) REFRESH operation will be in operation for 60 minutes. After 60 minutes,
the air blow temperature will return back gradually to previous condition.
(d) If the button is pressed again, REFRESH operation will be reset,
step (b) and step (c) will be repeated.
To slightly reduce air blow temperature of air conditioner and room humidity if unit has been operating for a long period of
time for the day.
1
CANCELLATION of REFRESH Operation
Cancel Condition Operation mode after cancel
Key press
Key press
Key press
Key press
Key press
Press or
Press or
Press or
Stop operation
POWERFUL operation
OFF Timer/ON Timer operation in COOLING
operation of previous setting
Selected mode operation
(COOLING) (Dry)
(Air Circulation) (Fan)
GOODSLEEP TIMER operation in COOLING
operation of previous setting
COOLING operation in previous setting
NOTE
The effectiveness of Refresh operation may not be significant in the following situation:
a) Cooling operation operates for a short time.
b) Unit is operated under high load condition such as to cool a big room, room which is directly expose to sunlight and high
outside temperature.
c) Temperature setting by the remote controller is lower than recommended temperature for cooling operation (refer page
3)

– 11 –
Power Safe (Max Current Switching)
This function limit the maximum current during the operation of air conditioner. It will help to avoid breaker
trips if maximum current reaches the breaker limits.
In summary, this function limit the electrical current during operation.
■To Start SAVE MODE operation
■To Cancel SAVE MODE operation
●Press before operation.
“ " is displayed on the LCD.
●Maximum current is limited to prevent tripping of the circuit
breaker during operation.
●Press again after operation.
SAVE mode operation is stop.
“ " disappears from the LCD."
1
Note:
– Save function will not be affective under certain operation condition.
– In case of power failure, save mode function will be cancelled. Please set by remote controller again.
– This function will limits the maximum current drawn by air conditioner by reducing the speed of the compressor.
You may feel less cooling performance compare to normal mode. If you feel so, please cancel Power Safe
mode and enter normal Cooling mode.
– When Power Safe is enable, the maximum capacity of Cooling operation will decrease.
– During Power Safe, it is recommended to use Auto Fan Speed.

– 12 –
Silent Operation
By pressing the (SILENT) button during Cool, Dry, Fan & Air Circulation operation, the fan speed
changes to the silent fan speed .
●When button is pressed,
●“ ” is displayed on the LCD.
●Fan speed changes to silent .
●Press the (On/Off) button, or
●Press the (Silent) button once again or
●Press the (Fan Speed) button.
Fan speed will return to the previous speed before SILENT
operation starts.
When SILENT operation stops, “ ” will disappear from
the LCD.
START
CANCEL
NOTE
●When Powerful operation is selected, Silent operation will be cancelled. Fan speed will return to the previous speed
before Silent operation.
●After unit auto restart, Silent operation is cancelled. Fan speed will return to the previous speed before Silent operation.
●During any operations with silent fan speed , if user presses the (Silent) button, the fan speed does not
change.
●By pressing Mode button, Silent operation is cancelled.

– 13 –
GoodSleep Timer Setting
Press the button, and the display changes as shown below.
Mode
GoodSleep Timer
Indication
GoodSleep Timer: The device will continue working for the
designated number of hours and then turn off.
Point the signal window of the remote controller toward the indoor
unit, and press the GoodSleep button.
The timer information will be displayed on the remote controller.
The TIMER lamp lights with a beep from the indoor unit.
Explanation of the GoodSleep Timer
The device will control the FAN SPEED and room temperature automatically so as to be quiet
and good for people’s health.
You can set the sleep timer to turn off after 0.5,1,2,3 --
➞ 11 or 12 hours. The FAN SPEED
and room temperature will be controlled as shown below.
Function Operation
The room temperature will
be controlled 2°C above the
setting temperature and the
FAN SPEED will be set to
LOWEST 1 hour after the
setting of the air sleep timer.
GoodSleep Timer
1 hour interval
Cooling
“”
Dry
“ ”
Fan
“”
and
Air-Circulation
“ ”
(Cancel GoodSleep Timer)

– 14 –
Adjusting the Airflow Direction
1
2Adjust the airflow to left and right
If the button is pressed once, the deflectors will start to
swing from right to left.
If the button is pressed again, the deflectors will stop in the current
position.
Several seconds (about 6 seconds) may be required before the
deflectors start to move.
●If the “ (Up/Down)” button is pressed once, the
horizontal air deflector swings up and down. If the button
is pressed again, the deflector stops in its current position.
Several seconds (about 6 seconds) may be required before
the deflector starts to move.
●When the operation is stopped, the horizontal air deflector
moves and stops at the position where the air outlet closes.
!CAUTION
●In “Cooling” operation, do not keep the horizontal air deflector
swinging for a long time. Some dew may form on the horizontal
air deflector and some dew may drop from it.
Adjust the airflow upward and downward.
According to operation, the horizontal air deflector is automatically
set to the proper angle suitable for each operation. The deflector
can be swings up and down and also set to the desired angle
using the “ (Up/Down)” button.
Press the “ (Up/Down)” button. The deflector will start to
swing up and down.
“” is display on LCD screen.
Press the “ (Up/Down)” button again. The deflector(s) will
stop in the current position.
“” is disappear on LCD screen.

– 15 –
Initialization of the Built-in airCloud Home Module
You can reset the internal settings (restore the factory settings) by remote controller.
This operation is valid only for indoor unit with Built-in airCloud Home module.
It is invalid when in use with Adapter WiFi module.
Please make this setting with the remote control in off mode.
“Wi-Fi” is a trademark or registered trademark of the “Wi-Fi” Alliance”.
■How to restore factory setting
●Press (Mode) button and (On Timer) button 3
seconds together.
●LCD will display “ ” on Temperature segment for 3 seconds
then it will display normal screen.
●Make sure “ ” Lamp on the indoor unit flash 4 times repeatedly
for about 20 seconds.
●Restart the unit & check “ ” Lamp blinks 3 times. This ensures
that unit enters into pairing mode & restoring factory setting is
succeeded.
NOTE
●Please note that the configuration will be cleared and pairing
procedure will be required to do again to use the built-in airCloud
Home module.
●Please refer separate operation manual available for more
information related Built-in airCloud Home Module.

– 16 –
Remove the cover as shown in the figure and take out the old
batteries. Push and pull to the
direction of arrow
Batteries
Cover
Install the new batteries.
The direction of the batteries should match the marks in the case.
1. Do not use new and old batteries, or different kinds of batteries
together.
2. Take out the batteries when you do not use the remote controller
for 2 or 3 months.
CAUTION
!
How to Exchange the Batteries in the Remote Controller
1
=
2
NOTE
●Change the batteries when remote controller LCD display restarts on
pressing of any key and there is no response from air conditioner.

– 17 –
How to Reset Filter Sign on the indoor unit
Reset Function (For Hardware Reset)
Filter sign on the indoor unit will blink with 1s On and 4s OFF. Because
cleaning of Air filter has not been done for a long time. Clean the Air filter.
Press Filter button at Off Mode pointing the remote controller towards the indoor
unit to reset Filter Sign.
“” symbol will be visible on LCD screen for about 3 seconds and Filter Sign
on the indoor unit will turn off.
During batteries replacement or any unlikely event, if the display does not change
during any button press, or there is display issue, press Reset button to reset your
remote controller hardware.
In order to reset remote controller hardware, press and release Reset button, the
display will be as shown for 2 seconds then it will change to default mode screen.
NOTE
●Filter button is active in OFF mode only.
NOTE
●Use some pointed item like pen to press the reset key.
●Once the remote controller is reset, all setting will reset except some special
function activated by user.