Samsung Ucc2400c User Manual

OWNER’S INSTRUCTIONS &  
INSTALLATION MANUAL  
MANUAL DE INSTRUCCIONES &  
MANUAL DE INSTALACIÓN  
MANUEL D’UTILISATION &  
MANUEL D’INSTALLATION  
Indoor Unit  
ACC2400C  
ACC2800C  
Outdoor Unit  
UCC2400C  
UCC2800C  
Cassette-type Air Conditioner (Cool)  
Aire acondicionador Tipo Casete (Refrigeración)  
Climatiseur de type Cassette (Refroidissement)  
E S F DB68-02173A(2)  
Contents  
N
PREPARING YOUR AIR CONDITIONER  
I
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I
I
I
I
I
Before Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2  
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2  
View of the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4  
Wired Remote Controller-Buttons and Display . . . . . . . . . . . . . .6  
Wireless Remote Controller-Buttons and Display . . . . . . . . . . . .7  
Centralized Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8  
The Indicators on the Unit (For Wireless Remote Controller Only) . . . . . .9  
Getting Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10  
Inserting the Wireless Remote Controller Batteries . . . . . . . . . .11  
USING WIRED REMOTE CONTROLLER  
OPERATING YOUR AIR CONDITIONER  
N
I
I
I
I
I
Selecting the Automatic Operating Mode . . . . . . . . . . . . . . . . .13  
Cooling Your Room . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14  
Removing Excess Humidity . . . . . . . . . . . . . . . . . . . . . . . . . . .15  
Airing Your Room . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16  
Adjusting the Air Flow Direction . . . . . . . . . . . . . . . . . . . . . . . .17  
N
PROGRAMMING YOUR AIR CONDITIONER  
I
Setting the On Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18  
Setting the Off Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19  
I
USING WIRELESS REMOTE CONTROLLER  
OPERATING YOUR AIR CONDITIONER  
N
I
I
I
I
I
Selecting the Automatic Operating Mode . . . . . . . . . . . . . . . . .21  
Cooling Your Room . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22  
Removing Excess Humidity . . . . . . . . . . . . . . . . . . . . . . . . . . .23  
Airing Your Room . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24  
Adjusting the Air Flow Direction . . . . . . . . . . . . . . . . . . . . . . . . .25  
N
PROGRAMMING YOUR AIR CONDITIONER  
I
Setting the On Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26  
Setting the Off Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27  
I
USING CENTRALIZED CONTROLLER  
I
Using the Centralized Controller . . . . . . . . . . . . . . . . . . . . . . . .28  
N
RECOMMENDATIONS FOR USE  
I
I
I
I
I
Operating Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . .29  
Temperature and Humidity Ranges . . . . . . . . . . . . . . . . . . . . . .29  
Cleaning Your Air Conditioner . . . . . . . . . . . . . . . . . . . . . . . . . .30  
Bio-Pure Filter Installation(Optional) . . . . . . . . . . . . . . . . . . . . .31  
Solving Common Problems . . . . . . . . . . . . . . . . . . . . . . . . . . .32  
N
N
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33  
INSTALLATION MANUAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34  
E-3  
View of the Unit  
The figures are shown in this instruction may differ from yours depending on the model.  
Indoor Unit  
Air flow blades(outlet)  
Refer to page 9  
Air inlet  
Air filter(under the grille)  
E-4  
Outdoor Unit  
Air inlet(Rear)  
Air outlet  
Connection valve  
E-5  
Wired Remote Controller-Buttons and Display  
The wired remote controller is an optional accessory.  
The wired remote controller is installed on the wall.  
Operating mode  
Centralized controller indicator  
(In case of installing the Centralized controller)  
Communication error indicator  
Temperature setting  
Fan speed  
On Timer setting  
Off Timer setting  
Air flow direction  
Test indicator  
Filter Sign indicator  
On/Off & Timer  
Set/Cancel button  
Temperature adjustment  
buttons  
On/Off indicator  
On Timer button  
Fan speed  
adjustment button  
Off Timer button  
Swing button  
Test button  
Filter Reset button  
Mode selection button  
Note  
- Test button is for your installation specialist. You must NOT press it.  
- After cleaning the air filter, press the filter reset button. Then the wired remote  
controller will display the FILTER SIGN indicator when the time to clean the air filter;  
refer to page 30.  
E-6  
Wireless Remote Controller-Buttons and Display  
The wireless remote controller is an optional accessory.  
Mode selection button  
Operating mode  
Temperature adjustment  
buttons  
Temperature setting  
Filter Reset button  
Fan speed  
Fan speed adjustment  
button  
Swing button  
Air flow direction  
On Timer setting  
On Timer button  
Off Timer setting  
Off Timer button  
Battery discharge indicator  
On/Off & Timer  
Set/Cancel button  
Note  
After cleaning the air filter, press the filter reset button.  
E-7  
Centralized Controller  
The centralized controller is an optional accessory.  
The centralized controller is installed on the wall.  
Operating lamp  
All On button  
All Off button  
On/Off indicators  
On/Off buttons  
Index  
Note  
Operating lamp comes on when at least one air conditioner connected to the  
centralized controller is operating.  
E-8  
(For Wireless Remote Controller Only)  
The Indicators on the Unit  
The receiver & display unit is an optional accessory for the wireless remote controller.  
Timer indicator  
On/Off button  
Remote control sensor  
Filter Sign indicator  
On/Off indicator  
E-9  
Getting Start  
You have just purchased a cassette type air conditioner and it has been  
installed by your installation specialist.  
Your Owner’s Instructions contain much valuable information on using your  
air conditioner. Please take the time to read them as they will help you take full  
advantage of the unit’s features.  
The booklet is organized as follows.  
N
The following figures are shown on pages from 4 to 9 :  
-
-
-
-
-
Indoor and outdoor units  
Wired remote controller (buttons and display)  
Wireless remote controller (buttons and display)  
Centralized controller  
The indicators on the unit (For wireless remote controller only)  
N
In the main part of the document, you will find a series of step-by-step  
procedures for each function available.  
The illustrations in the step-by-step procedures use three different symbols:  
PRESS  
PUSH  
HOLD DOWN  
E-10  
Inserting the Wireless Remote Controller Batteries  
You must insert or replace the remote controller batteries when :  
N You purchase the air conditioner  
N The remote controller does not work correctly  
Note  
N Use two AAA, LR03 1.5V batteries.  
N Do not use old batteries or different kinds of batteries together.  
N Batteries may be completely discharged after 12 months, even  
if they have not actually been used.  
1
2
Push the battery cover on the rear of the remote controller with your  
thumb in the direction of the arrow and remove it.  
Insert the two batteries, taking care to respect the polarities :  
N + on the battery with + on the remote controller.  
N - on the battery with - on the remote controller.  
3
Close the cover by sliding it back until it clicks into place.  
E-11  
Using Wired  
Remote  
Controller  
This chapter indicates how to operate and program  
your air conditioner with the wired remote controller.  
The wired remote controller is an optional accessory.  
E-12  
Selecting the Automatic Operating Mode  
In the Automatic mode, the room temperature and the fan speed are  
controlled automatically.  
If necessary, press  
(ON/OFF) button.  
1
Result: : N The On/Off indicator on the wired remote controller comes on.  
N The air conditioner runs in the mode selected when  
N the unit was last used.  
IMPORTANT  
The air conditioner is fitted with a protection mechanism to  
prevent the unit from being damaged when it is started  
immediately after being:  
N Plugged in  
N Stopped  
lt will start up normally after three minutes.  
To select the AUTO mode, press the Mode button until  
is displayed  
2
at the top of the wired remote controller.  
Result: : N The air conditioner runs in AUTO mode.  
Note  
You can change modes at any time.  
3
To adjust the temperature, press the Temperature buttons one or more times  
until the required temperature is displayed. Possible temperatures are between  
65OF and 86OF inclusive.  
Result: N Each time you press Temperature buttons:  
- The temperature is adjusted by 1OF.  
N The air conditioner starts cooling, provided that the room  
temperature is higher than the selected temperature:  
- The quantity of air is adjusted automatically.  
E-13  
Cooling Your Room  
You must select the COOL mode if you wish to adjust the :  
N Cooling temperature  
N Fan speed when cooling  
If necessary, press  
(ON/OFF) button.  
1
Result: N The On/Off indicator on the wired remote controller comes on.  
N The air conditioner runs in the mode selected when  
N the unit was last used.  
IMPORTANT  
The air conditioner is fitted with a protection mechanism to  
prevent the unit from being damaged when it is started  
immediately after being:  
N Plugged in  
N Stopped  
lt will start up normally after three minutes.  
2
To select the COOL mode, press the Mode button until  
the top of the wired remote controller.  
Result: N The air conditioner runs in COOL mode.  
You can change modes at any time.  
is displayed at  
Note  
3
To adjust the temperature, press the Temperature buttons one or more times  
until the required temperature is displayed. Possible temperatures are between  
65OF and 86OF inclusive.  
Result: N Each time you press Temperature buttons:  
- The temperature is adjusted by 1OF.  
N The air conditioner starts cooling, provided that the room  
N temperature is higher than the selected temperature ; the fan  
N will, however, operate.  
4
Select the fan speed by pressing the Fan button one or more times until  
the intended value is displayed :  
Automatic(rotated :  
)
Low  
Medium  
High  
5
To control the direction of the air flow, refer to page 17.  
E-14  
Removing Excess Humidity  
If the atmosphere in your room is very humid or damp, you can  
remove excess humidity without lowering the room temperature  
too much.  
If necessary, press  
(ON/OFF) button.  
1
Result: N The On/Off indicator on the wired remote controller comes on.  
N The air conditioner runs in the mode selected when  
N the unit was last used.  
IMPORTANT  
The air conditioner is fitted with a protection mechanism to  
prevent the unit from being damaged when it is started  
immediately after being:  
N Plugged in  
N Stopped  
It will start up normally after three minutes.  
2
3
To select the DRY mode, press the Mode button until  
the top of the wired remote controller.  
Result: N The air conditioner runs in DRY mode.  
is displayed at  
You can change modes at any time.  
Note  
To adjust the temperature, press the Temperature buttons one or more times  
until the required temperature is displayed. Possible temperatures are between  
65OF and 86OF inclusive.  
Result: N Each time you press Temperature buttons:  
- The temperature is adjusted by 1OF.  
N The air conditioner starts removing the excess humidity.  
The quantity of air is adjusted automatically.  
Note  
In the dry mode, the fan speed is controlled automatically.  
4
To control the direction of the air flow, refer to page 17.  
E-15  
Airing Your Room  
If the atmosphere in your room is stale, you can air it using the  
FAN feature.  
If necessary, press  
(ON/OFF) button.  
1
Result: N The On/Off indicator on the wired remote controller comes on.  
N The air conditioner runs in the mode selected when the unit  
was last used.  
To select the FAN mode, press the Mode button until  
the top of the wired remote controller.  
is displayed at  
2
3
Result: N The air conditioner runs in FAN mode.  
Select the fan speed by pressing the Fan button one or more times until  
the intended value is displayed:  
Low  
Medium  
High  
To control the direction of the air flow, refer to page 17.  
4
E-16  
Adjusting the Air Flow Direction  
Depending on the position of the indoor unit, you can adjust the position of  
the air flow blades, thus increasing the efficiency of the air conditioner.  
Press the Swing button.  
1
Result: The blades are moving between up and down.  
IMPORTANT  
When the air conditioner is first turned on, the blades are  
moved.  
To stop the blades, press the Swing button again.  
2
To set to the required position, press the Swing button again.  
When the blades are in the required position.  
Note You can also adjust by the hands the blades which are not  
operated by the Swing button.  
E-17  
Setting the On Timer  
The On Timer enables you to switch on the air conditioner automatically  
after a given period of time. You can set the period of time from  
30 minutes to 24 hours.  
To set the operating time, press the On Timer button one or more times  
until the required time is displayed. Possible time is between 0.5 hour and  
24 hours inclusive.  
1
Result: N Each time you press On Timer button:  
- The time is adjusted by 0.5 hour to 5 hours, by 1 hour from  
6 hours to 24 hours.  
Press the  
(Set/Cancel) button to complete the setting.  
2
Result: N The remaining time is displayed.  
N Blinking of the timer indicator stops.  
N The selected mode and the temperature disappear on the  
display after 5 seconds.  
N The air conditioner will switch on automatically when the  
counter displayed on the remote controller reaches the  
setting time as disappearing the On timer setting.  
Note  
You can see or change the setting mode and/or the temperature  
by pressing the Mode button or the Temperature buttons after  
setting the On timer.  
To Cancel the On Timer  
To cancel the On Timer, press the On Timer button one or more times  
until the On timer setting disappears.  
1
Press the  
(Set/Cancel) button.  
2
Note  
If you want to turn on the air conditioner before the timer reaches  
the setting time, press the (ON/OFF) button.  
E-18  
Setting the Off Timer  
The Off Timer enables you to switch off the air conditioner automatically  
after a given period of time. You can set the period of time from 30  
minutes to 24 hours.  
To set the operating time, press the Off Timer button one or more times  
until the required time is displayed. Possible time is between 0.5 hour and  
24 hour inclusive.  
1
Result: N Each time you press Off Timer button:  
- The time is adjusted by 0.5 hour to 5 hours, by 1 hour from  
6 hours to 24 hours.  
Press the  
(Set/Cancel) button to complete the setting.  
2
Result: N The remaining time is displayed.  
N Blinking of the timer indicator stops.  
N The selected mode and the temperature disappear on the  
display after 5 seconds.  
N The air conditioner will switch off automatically when the  
counter displayed on the remote controller reaches the  
setting time as disappearing the Off timer setting.  
Example If you would like to turn the air conditioner on after 2 hours  
and to operate it for 2 hours:  
1. Press the On Timer button until ‘2.0 Hr’ is displayed.  
2. Press the  
3. Press the Off Timer button until ‘4.0 Hr’ is displayed.  
4. Press the (Set/Cancel) button.  
(Set/Cancel) button.  
Note  
You can see or change the setting mode and/or the temperature  
by pressing the Mode button or the Temperature buttons after  
setting the Off timer.  
To Cancel the Off Timer  
To cancel the Off Timer, press the Off Timer button one or more times  
until the timer setting disappears.  
1
Press the  
(Set/Cancel) button.  
2
Note  
If you want to turn off the air conditioner before the timer reaches  
the setting time, press the (ON/OFF) button.  
E-19  
Using  
Wireless  
Remote  
Controller  
This chapter indicates how to operate and program  
your air conditioner with the wireless remote controller.  
The wireless remote controller is an optional accessory.  
E-20  
Selecting the Automatic Operation Mode  
In the Automatic mode, the room temperature and the fan speed are  
controlled automatically.  
If necessary, press  
(ON/OFF) button.  
1
Result: : N The On/Off indicator on the unit comes on.  
N The air conditioner runs in the mode selected when  
the unit was last used.  
N The indoor unit beeps.  
IMPORTANT  
The air conditioner is fitted with a protection mechanism to  
prevent the unit from being damaged when it is started  
immediately after being:  
N Plugged in  
N Stopped  
lt will start up normally after three minutes.  
To select the AUTO mode, press the Mode button until  
is displayed  
2
at the top of the wireless remote controller.  
Result: : N The indoor unit beeps.  
N The air conditioner runs in AUTO mode.  
Note  
You can change modes at any time.  
3
To adjust the temperature, press the Temperature buttons one or more times  
until the required temperature is displayed. Possible temperatures are between  
65OF and 86OF inclusive.  
Result: N Each time you press Temperature buttons:  
- The temperature is adjusted by 1OF.  
N The air conditioner starts cooling, provided that the room  
temperature is higher than the selected temperature:  
The quantity of air is adjusted automatically.  
E-21  
Cooling Your Room  
You must select the COOL mode if you wish to adjust the :  
N Cooling temperature  
N Fan speed when cooling  
If necessary, press  
(ON/OFF) button.  
1
Result: N The On/Off indicator on the unit comes on.  
N The air conditioner runs in the mode selected when the  
unit was last used.  
N The indoor unit beeps.  
IMPORTANT  
The air conditioner is fitted with a protection mechanism to  
prevent the unit from being damaged when it is started  
immediately after being:  
N Plugged in  
N Stopped  
lt will start up normally after three minutes.  
2
3
To select the COOL mode, press the Mode button until  
at the top of the wireless remote controller.  
is displayed  
Result: N The indoor unit beeps.  
N The air conditioner runs in COOL mode.  
You can change modes at any time.  
Note  
To adjust the temperature, press the Temperature buttons one or more  
times until the required temperature is displayed. Possible temperatures  
are between 65OF and 86OF inclusive.  
Result: N Each time you press Temperature buttons:  
- The temperature is adjusted by 1OF.  
- The indoor unit beeps.  
N The air conditioner starts cooling, provided that the room  
N temperature is higher than the selected temperature ; the fan  
N will, however, operate.  
4
5
Select the fan speed by pressing the Fan button one or more times until  
the intended value is displayed :  
Automatic(rotated :  
)
Low  
Medium  
High  
To control the direction of the air flow, refer to page 25.  
E-22  
Removing Excess Humidity  
If the atmosphere in your room is very humid or damp, you can  
remove excess humidity without lowering the room temperature  
too much.  
If necessary, press  
(ON/OFF) button.  
1
Result: N The On/Off indicator on the unit comes on.  
N The air conditioner runs in the mode selected when  
N the unit was last used.  
N The indoor unit beeps.  
IMPORTANT  
The air conditioner is fitted with a protection mechanism to  
prevent the unit from being damaged when it is started  
immediately after being:  
N Plugged in  
N Stopped  
lt will start up normally after three minutes.  
2
3
To select the DRY mode, press the Mode button until  
at the top of the wireless remote controller.  
is displayed  
Result: N The indoor unit beeps.  
N The air conditioner runs in DRY mode.  
You can change modes at any time.  
Note  
To adjust the temperature, press the Temperature buttons one or more  
times until the required temperature is displayed. Possible temperatures  
are between 65OF and 86OF inclusive.  
Result: N Each time you press Temperature buttons:  
- The temperature is adjusted by 1OF.  
- The indoor unit beeps.  
N The air conditioner starts removing the excess humidity.  
The quantity of air is adjusted automatically.  
Note  
In the dry mode, the fan speed is controlled automatically.  
4
To control the direction of the air flow, refer to page 25.  
E-23  
Airing Your Room  
If the atmosphere in your room is stale, you can air it using the  
FAN feature.  
If necessary, press  
(ON/OFF) button.  
1
Result: N The On/Off indicator on the unit comes on.  
N The air conditioner runs in the mode selected when  
N the unit was last used.  
N The indoor unit beeps.  
2
To select the FAN mode, press the Mode button until  
the top of the wireless remote controller.  
is displayed at  
Result: N The indoor unit beeps.  
Result: N The air conditioner runs in FAN mode.  
You can change modes at any time.  
Note  
Select the fan speed by pressing the Fan button one or more times until  
the intended value is displayed:  
3
4
Low  
Medium  
High  
To control the direction of the air flow, refer to page 25.  
E-24  
Adjusting the Air Flow Direction  
Depending on the position of the indoor unit, you can adjust the position of  
the air flow blades, thus increasing the efficiency of the air conditioner.  
Press the Swing button.  
1
Result: N The blades are moving between up and down.  
Result: N The indoor unit beeps.  
IMPORTANT  
When the air conditioner is first turned on, the blades are moved.  
To stop the blades, press the Swing button again.  
2
To set to the required position, press the Swing button again.  
When the blades are in the required position.  
Note You can also adjust by the hands the blades which are not  
operated by the swing button.  
E-25  
Setting the On Timer  
The On Timer enables you to switch on the air conditioner automatically  
after a given period of time. You can set the period of time from 30  
minutes to 24 hours.  
To set the operating time, press the On Timer button one or more times  
until the required time is displayed. Possible time is between 0.5 hour and  
24 hour inclusive.  
1
Result: N Each time you press On Timer button:  
- The time is adjusted by 0.5 hour to 5 hours, by 1 hour from  
6 hours to 24 hours.  
Press the  
(Set/Cancel) button to complete the setting.  
2
Result: N The remaining time is displayed.  
N Blinking of the timer indicator stops.  
N The selected mode and the temperature disappear on the  
display after 5 seconds.  
N The air conditioner will switch on automatically when the  
counter displayed on the remote controller reaches the  
setting time as disappearing the On timer setting.  
Note  
You can see or change the setting mode and/or the temperature  
by pressing the Mode button or the Temperature buttons after  
setting the On timer.  
To Cancel the On Timer  
To cancel the On Timer, press the On Timer button one or more times  
until the timer setting disappears.  
1
Press the  
(Set/Cancel) button.  
2
Note  
If you want to turn on the air conditioner before the timer reaches  
the setting time, press the  
(ON/OFF) button.  
E-26  
Setting the Off Timer  
The Off Timer enables you to switch off the air conditioner automatically  
after a given period of time. You can set the period of time from 30  
minutes to 24 hours.  
To set the operating time, press the Off Timer button one or more times  
until the required time is displayed. Possible time is between 0.5 hour and  
24 hour inclusive.  
1
Result: N Each time you press Off Timer button:  
- The time is adjusted by 0.5 hour to 5 hours, by 1 hour from  
6 hours to 24 hours.  
Press the  
(Set/Cancel) button to complete the setting.  
2
Result: N The remaining time is displayed.  
N Blinking of the timer indicator stops.  
N The selected mode and the temperature disappear on the  
display after 5 seconds.  
N The air conditioner will switch off automatically when the  
counter displayed on the remote controller reaches the  
setting time as disappearing the Off timer setting.  
Example If you would like to turn the air conditioner on after 2 hours  
and to operate it for 2 hours:  
1. Press the On Timer button until ‘2.0 Hr’ is displayed.  
2. Press the  
3. Press the Off Timer button until ‘4.0 Hr’ is displayed.  
4. Press the (Set/Cancel) button.  
(Set/Cancel) button.  
Note  
You can see or change the setting mode and/or the temperature  
by pressing the Mode button or the Temperature buttons after  
setting the Off timer.  
To Cancel the Off Timer  
To cancel the Off Timer, press the Off Timer button one or more times  
until the timer setting disappears.  
1
Press the  
(Set/Cancel) button.  
2
Note  
If you want to turn off the air conditioner before the timer reaches  
the setting time, press the  
(ON/OFF) button.  
E-27  
Using the Centralized Controller  
The centralized controller is an optional accessory.  
Up to sixteen air conditioners can be turned on or off by connecting to the  
centralized controller. However, you cannot adjust the cooling temperature  
or set the timer with it. If you also have the wired remote controller,  
CENTRALIZED CONTROL is displayed at the top of the remote controller.  
To turn on the all of air conditioners connected to the centralized controller,  
press the (All ON) button.  
1
2
3
To turn on/off a specific air conditioner, press the  
(ON/OFF) button.  
Result: N The On/Off indicator comes on when the air conditioner is  
operating.  
To turn off the all of air conditioners connected to the centralized controller,  
press the  
(All OFF) button.  
E-28  
Operating Recommendations  
Here are a few recommendations that you should follow when operating  
your air conditioner.  
Topic  
Recommendation  
Power failure  
If a power failure occurs while the air conditioner is operating,  
the unit will be switched off. When the power returns, the air  
conditioner restarts in the previous operation mode.  
Temperature and Humidity Ranges  
The following table indicates the temperature and humidity ranges,  
within which the air conditioner can be used.  
If the air conditioner is used at...  
Then...  
High temperature  
The automatic protection feature may be  
triggered and the air conditioner stopped.  
Low temperature  
Awater leakage or some other  
malfunction may happen if the heat  
exchanger freezes.  
High humidity levels  
Water may condense on and drip from  
the surface of the indoor unit if it is used  
for a long periods.  
Mode  
Cooling  
Drying  
Outdoor Temperature  
23°F to 109°F approx.  
70°F to 109°F approx.  
Indoor Temperature  
70°F to 90°F approx.  
70°F to 90°F approx.  
Indoor Humidity  
80% or less  
-
If the cooling operation is used at over 91°F(indoor temperature)  
then, does not a full capacity.  
E-29  
Cleaning Your Air Conditioner  
To get the best possible use out of your air conditioner, you must clean  
it regularly to remove the dust that accumulates on the air filter.  
Before cleaning your air conditioner, ensure that you have  
switched off the electric circuit breaker used for the unit.  
IMPORTANT  
Open the front grille by pushing the tabs on the grille.  
1
You must give attention when disassembling the front  
grille and must check the safety clips have been  
installed. If you do not check them, the front grille will  
drop suddenly and you will be hurt.  
IMPORTANT  
Remove the front grille.  
2
2-1 Remove the safety clips.  
2-2 Open the front grille about 45° and pull it forward.  
Pull out the air filter.  
3
4
Remove all dust on air filter with a vacuum cleaner or a brush. In case of  
serious dust accumulation, put the air filter in warm detergent water and  
shake it vertically.  
Safety Clip  
Note  
When you have installed the Bio-Pure filter, do not allow  
any liquids to contact the filter. It may lose its properties.  
Dry the air filter.  
5
6
7
8
When you have finished, insert the filter into the front grille.  
Clean the unit with a vacuum cleaner or a brush once a month.  
Reinstall the front grille and the safety clips.  
Note  
You can use all 4 points of the indoor unit for installing the front  
grille and the safety clips depending on your requirement.  
Note  
After cleaning the air conditioner, press the Filter Reset button.  
Wired Remote Controller  
Wireless Remote Controller  
E-30  
Bio-Pure Filter Installation (Optional)  
The air conditioner can be fitted with a Bio-Pure filter to remove minute dust  
particles. The service life of the filter is approximately three months  
depending on the time during which the air conditioner is used.  
Remove the vinyl packing from the filter.  
1
Note  
Do not remove the packing from a bio-pure filter until you wish  
to use the filter, as it will lose its properties.  
Open the front grille by pulling the tabs on the grille.  
2
3
Remove the front grille.  
3-1 Remove the safety clips.  
3-2 Open the front grille about 45° and pull it forward.  
Pull out the air filter.  
4
5
Locate the bio-pure filter on the center of air filter.  
Secure the bio-pure filter with four screws.  
6
7
Reinstall the air filter, the front grille and the safety clips.  
E-31  
Solving Common Problems  
Before contacting the after-sales service, perform the following simple  
checks. They may save your time and expense of an unnecessary call.  
Problem  
Explanation/Solution  
The air conditioner does not N Check that the breaker used for the air conditioner is switched on.  
operate at all  
Wired Remote Controller  
The air conditioner does not  
operate with the remote  
controller  
N
is displayed on the wired remote controller. In this case,  
turn the air conditioner off and contact your dealer.  
Wired Remote Controller  
When turning on/off the  
air conditioner, it is not  
N In case of using the wired remote controller for a group, the air  
conditioners connected to the remote controller are turned on/off in  
order. Thus, it takes some time(up to 32 seconds).  
turned on/off immediately.  
Wireless Remote Controller  
The air conditioner does not N Check that there are no obstacles between you and the remote  
operate with the remote  
controller  
control sensor.  
N Check the wireless remote controller batteries (Refer to page 11).  
N Check that you are close enough to the remote control sensor.  
(seven metres/yards/23ft or less).  
Wireless Remote Controller  
No beep is heard when you N Check that you are pointing the remote controller at the remote  
press  
(ON/OFF) on the  
control sensor of the receiver & display unit.  
remote controller  
N Replace the remote controller batteries if necessary.  
N If there is a strong light around the air conditioner, a  
three-wavelength light, a neon sign, etc., for example, the air  
conditioner may not be operated with a remote controller. If this  
happens, use the remote controller close by the remote control  
sensor.  
The air conditioner does  
not cool  
N Check that the correct operating mode has been selected.  
N The room temperature may be too low or too high.  
N Dust may be blocking the air filter guard; refer to page 30  
for cleaning instructions.  
N Check that there is no obstacle in front of the outdoor unit.  
E-32  
Specifications  
MODEL  
ACC2400C  
ACC2800C  
Capacity Cooling  
SEER  
Btu/h  
Pts/h  
23000  
28000  
Performance  
Ratings  
10.0  
10.0  
Moisture Removal  
5
6
Air FLOW(Cooling, HIGH) CFM  
565  
600  
46/58  
49/61  
Sound Rating-(In/Out)  
Power source  
dB  
Electrical  
Data  
,V, Hz  
1∅, 208-230V~, 60Hz  
1∅, 208-230V~, 60Hz  
A
Min.Ampacity  
12.0  
2400  
Flare  
1/4  
13.0  
2800  
Flare  
1/4  
W
Cooling Watts  
Connections  
Refrigeration  
Lines  
Liquid Line O. D.  
Suction Line O.D.  
Factory Pre-charge  
Max. Line length  
Max. Height Difference  
in  
in  
ft  
5/8  
5/8  
16  
16  
ft  
100  
100  
50  
50  
ft  
ACC2400C  
ACC2800C  
Dimensions  
& Weight  
INDOOR UNIT  
W X H X D  
33116  
916 3316  
33116  
916 3316  
1
1
1
1
in  
x
x
x
x
Ibs  
Net Weight  
64  
68  
OUTDOOR UNIT  
W X H X D  
UCC2400C  
UCC2800C  
34 85  
25 18 1216  
34 85  
31 18 1216  
3
3
in  
x
x
x
x
Ibs  
Net Weight  
145  
168  
Standard rating conditions Cooling  
Indoor  
Outdoor  
DB  
80  
WB  
67  
DB  
95  
WB  
75  
°F  
°C  
26.7  
19.4  
35.0  
23.9  
E-33  
INSTALLATION  
MANUAL  
Indoor Unit Dimensions  
Unit : mm(inch)  
Liquid refrigerant port  
Water Supply Intake  
Gas refrigerant port  
Fixing bracket  
Drain tube outlet  
(37 3  
8
)
(Dimensions of Front Panel)  
950  
(911  
16  
)
(34 5  
)
246  
(Cutting Dimensions of Ceiling)  
880  
766  
8
(30 3  
16  
)
(Space of Suspension Bolts)  
(3 9  
)
90  
16  
(4 5  
)
110  
16  
(33 1  
)
(9 1  
230  
16  
)
(Outer Dimensions)  
840  
16  
E-34  
Contents  
N
N
PREPARING THE INSTALLATION  
I
Deciding on Where to Install the Air Conditioner . . . . . . . . . . . .36  
Air Conditioner and Accessories . . . . . . . . . . . . . . . . . . . . . . . .38  
I
INSTALLING THE INDOOR UNIT  
I
I
I
I
I
I
Indoor Unit Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39  
Purging the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40  
Connecting the Connection Cord . . . . . . . . . . . . . . . . . . . . . . .40  
Drain Hose Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42  
Connecting the Indoor Unit Assembly Piping . . . . . . . . . . . . . .44  
Cutting/Flaring the Pipes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45  
N
N
INSTALLING THE OUTDOOR UNIT  
I
I
I
Connecting the Cables to the Outdoor Unit . . . . . . . . . . . . . . .46  
Checking Correct Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . .47  
Fixing the Unit in Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48  
COMPLETING THE INSTALLATION  
I
I
I
I
Connecting Up and Removing Air in the Circuit . . . . . . . . . . . .49  
Performing Leak Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50  
Insulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51  
Installing the Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52  
N
INSTALLING THE OPTIONAL ACCESSORIES  
I
I
I
I
I
Setting up Option Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . .53  
Wired remote controller Installation (Optional) . . . . . . . . . . . . .57  
Centralized controller Installation (Optional) . . . . . . . . . . . . . . .58  
Receiver & display unit Installation (Optional) . . . . . . . . . . . . . .60  
Bio-Pure Filter Installation (Optional) . . . . . . . . . . . . . . . . . . . . .61  
N
OTHERS  
I
I
I
I
Controlling a Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62  
Checking and Testing Operations . . . . . . . . . . . . . . . . . . . . . . .64  
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66  
Explaining Operations to the Owner . . . . . . . . . . . . . . . . . . . . .68  
E-35  
Deciding on Where to Install the Air Conditioner  
When deciding on the location of the air conditioner with the owner, the following restrictions  
must be taken into account.  
General  
Do NOT install the air conditioner in a location where it will come into contact with the following elements:  
N
N
N
N
N
Combustible gases  
Saline air  
Machine oil  
Sulphide gas  
Special environmental conditions  
If you must install the unit in such conditions, first consult your dealer.  
Indoor Unit  
N
N
There must be no obstacles near the air inlet and outlet.  
Choose a space of ceiling that enables the pipes and cables to be easily connected to the outdoor unit and  
the recommended length of 5m/16ft 5in to be respected (“L” m/ft maximum-“L”:indicated in the diagram on the  
page opposite). Proper drain hose passage should also be considered.  
N
N
N
Install the indoor unit on a ceiling that can support its weight.  
Maintain sufficient clearance around the indoor unit, as indicated in the diagram on the page opposite.  
Make sure that the water dripping from the drain hose runs away correctly and safely.  
Outdoor Unit  
N
The outdoor unit must NEVER be placed on its side or upside down, as the compressor lubrication oil will run  
into the cooling circuit and seriously damage the unit.  
N
N
N
Choose a location that is dry and sunny, but not exposed to direct sunlight or strong winds.  
Do not block any passageways or thoroughfares.  
Choose a location where the noise of the air conditioner when running and the discharged air do not disturb  
any neighbours.  
N
N
Choose a position that enables the pipes and cables to be easily connected to the indoor unit. Recommended  
length between indoor and outdoor unit is 5m/16ft 5in (“L” m/ft maximum).  
Install the outdoor unit on a flat, stable surface that can support its weight and does not generate any  
unnecessary noise and vibration.  
N
N
N
Position the outdoor unit so that the air flow is directed towards the open area.  
Maintain sufficient clearance around the outdoor unit, as indicated in the diagram on the page opposite.  
If the outdoor unit is installed at a height, ensure that its base is firmly fixed in position; the maximum height  
difference between indoor and outdoor unit is “H” m/ft (“H” indicated in the diagram on the page opposite.).  
N
Make sure that the water dripping from the drain hose runs away correctly and safely.  
CAUTION  
N You have just purchased a cassette-type air conditioner and it has to be  
installed by your installation specialist.  
N This device must be installed according to the national electrical rules.  
E-36  
Respect the clearances and maximum lengths indicated in the diagram below when installing the unit.  
Liquid Refrigerant tube  
Gas Refrigerant tube  
“H” m/ft maximum  
Model  
L
H
✴✴24✴✴ 30m/ 15m/  
Drain hose  
✴✴28✴✴  
100ft 50ft  
350mm  
(14inch)  
minimum  
The appearance of the outdoor unit  
may be different from the diagram  
depending on the model.  
Unit : mm(inch)  
Space requirement when installing the indoor unit  
1500mm(5ft)  
minimum  
11  
16  
(
)
17  
13  
16  
(
)
20  
1000mm(3ft) minimum  
E-37  
Air Conditioner and Accessories  
The following accessories are supplied with the air conditioner. The quantities are indicated in parentheses.  
Basic Accessories  
Owner’s Instructions &  
Installation Manual (1)  
Pattern Sheet(1)  
Insulation  
Cover Drain(1)  
Insulation  
Cover Pipe(2)  
Insulation  
Cover Band(1)  
Insulation Pipe 5/8"(1)  
S
TION  
RUC  
INST  
ER'S  
OWN  
ES  
CION  
RUC  
INST  
DE  
UAL  
MAN  
O
L
'US  
NI  
P
ER  
UZIO  
S
ISTR  
RU  
ÇÕE  
I
NST  
DE  
UAL  
MAN  
TIO  
N
ILISA  
D'UT  
UEL  
MAN  
EI  
SUNG  
ANW  
CHS  
RAU  
GEB  
ditioner  
Air Con  
pe Room  
ado dom  
p
ma Split  
co siste  
Splut-ty  
ndicion  
onatore  
o
ésti  
ad unità  
mbienti  
e
Separat  
Split  
nado tip  
condicio  
Aire aco  
Condizi  
er  
a
d'aria  
o
de ar  
eur de  
maanl  
Aparelh  
Climatis  
raumkli  
ré  
pe sépa  
ty  
age  
Geteilte  
Insulation Drain  
Pipe(1)  
Cable-Tie(5)  
Flexible Hose(1)  
TH M4 X 12 Tapped  
Screw(4)  
Pad Stopper(1)  
Insulation Drain Sub (1)  
Bolt(4)  
<Front Panel>  
Flare Nuts 5/8 (1)  
Rubber Leg (4)  
Flare Nuts 1/4 (1)  
Optional Accessories  
Wired Remote  
Controller(1)  
Cable-Tie(2)  
Cable Clamp(5)  
TH M4 X 16 Tapped  
Screw(7)  
Wireless Remote  
Controller(1)  
Battery(2)  
FH M4 X 16 Tapped  
Screw(2)  
Remote Controller  
Holder(1)  
Receiver & Display  
Unit(1)  
Centralized Controller(1)  
Transmitter(1)  
Cable-Tie(2)  
Cable Clamp(5)  
Cable-Tie(2)  
TH M4 X 16 Tapped  
Screw(7)  
Spacer Support(4)  
Bio-Pure Filter(1)  
TH M4 X 10 Tapped  
Screw(4)  
Air blocking Kit(1)  
Note  
N
Refrigeration pipes and their insulating materials, power cables are not supplied.  
E-38  
Indoor Unit Installation  
Place the pattern sheet on the ceiling at the spot where you want to  
install the indoor unit.  
1
Note  
N
Since the diagram is made of paper, it may shrink or stretch  
slightly due to temperature or humidity. For this reason,  
before drilling the holes maintain the correct dimensions  
between the markings; refer to page 34.  
Concrete  
Insert bolt anchors, use existing ceiling supports or construct a suitable  
support as shown in figure.  
2
3
Insert  
Hole in anchor  
Hole in plug  
Install the suspension bolts depending on the ceiling type.  
Suspension bolt(M8)-field supply  
IMPORTANT Ensure that the ceiling is strong enough to support  
the weight of the indoor unit.  
Before hanging the unit, test the strength of each  
attached suspension bolt.  
Ceiling support  
Screw eight nuts to the suspension bolts making space for hanging  
the indoor unit.  
4
5
IMPORTANT You must install the suspension bolts more than four  
when installing the indoor unit.  
Hang the indoor unit to the suspension bolts between two nuts.  
Note  
N
Tubing must be laid and connected inside the ceiling when  
suspending the unit. If the ceiling is already constructed, lay  
the tubing into position for connection to the unit before  
placing the unit inside the ceiling.  
Pad stopper  
Bracket  
Screw the nuts to suspend the unit. Cut a pad stopper and place it on the  
bracket at this time.  
6
7
Adjust the unit to the appropriate position considering the installation area for the front  
panel.  
Unit:mm(inch)  
13  
16  
(
)
20  
Indoor Unit  
7-1 Place the pattern sheet on the indoor unit.  
7-2 Adjust a space between the ceiling and the indoor unit by using the gauge  
of dimensions.  
Ceiling  
11  
16  
(
)
17  
7-3 Fix the indoor unit securely after adjusting level of the unit by using a leveler.  
7-4 Remove the pattern sheet, connect the other cables and install the front panel.  
Gauge of  
Dimensions  
E-39  
Purging the Unit  
On delivery, the indoor unit is loaded with an inert nitrogen gas.  
All this gas must therefore be purged before connecting the assembly  
piping. To purge the inert gas, proceed as follows.  
Unscrew the caps at the end of each pipe.  
Result: All inert gas escapes from the indoor unit.  
Note  
N To prevent dirt or foreign objects from getting into the pipes  
during installation, do NOT remove the caps completely until  
you are ready to connect the piping.  
Connecting the Connection Cord  
The indoor unit is powered from the outdoor unit via the connection cord.  
Remove the screws on the electrical component box and remove the  
cover plates.  
1
Route the connection cord through the conduit hole of side of the indoor  
unit and connect the cable to terminals as shown in page 41.  
2
Cable Clamp  
Route the other end of the cable to the outdoor unit through the ceiling &  
the hole on the wall.  
3
Reassemble the electrical component box cover, carefully tightening the  
screws.  
4
5
For further details on how to plug the other end of the connection cord  
into the outdoor unit, refer to page 46.  
E-40  
Main PCB  
Sub PCB  
Wiring Diagram  
Terminal block  
Receiver & Display Unit  
(Optional)  
SUB PCB  
MAIN PCB  
CN9  
CN7  
SW1  
SW2  
Rotary  
Digital  
Switch  
CN20 Connector  
DIP Switch  
Indoor Unit  
Transmitter  
(Optional)  
Ventilator  
Motor  
Float  
Switch  
Wired  
Centralized  
Controller  
(Optional)  
Communication  
Remote  
Controller  
(Optional)  
Power  
EARTH  
MAIN POWER  
208-230V~, 60Hz  
Outdoor Unit  
MAIN POWER  
208-230V~, 60Hz  
Cable Specifications  
The following electrical characteristics must be respected.  
ACC2400C  
ACC2800C  
MODEL  
Note  
1Ø - 208-230V~, 60Hz  
Power  
Sub switch  
Fuse  
Min. size of electric Wires  
from/to the indoor/outdoor unit  
The power cables are not  
supplied with the air conditioner.  
The user should purchase them  
separately.  
25A  
25A  
30A  
30A  
H07RN-F, 4G, 1.0mm2  
9
H07RN-F, 3G, 2.5mm2  
H07RN-F, 3G, 4.0mm2  
20m(6 16 ft) or less  
Size of electric input wires  
50m(16 38 ft) or less  
E-41  
Drain Hose Installation  
Care must be taken when installing the drain hose for the indoor unit  
to ensure that any condensate water is correctly drained outside.  
Drain tube  
outlet  
Insert the flexible hose to the drain tube outlet, if necessary.  
1
Note  
N Attach the drain hose to the drain tube outlet with the adhesives  
to prevent water leaks, then secure the hose with a band  
etc..(The band is not supplied with the air conditioner.)  
Insulation drain sub  
Install the drain hose so that its length can be as short as possible.  
Internal diameter of the drain hose should be the same or slightly bigger  
than the external diameter.  
2
Indoor  
Unit  
Band(Not supplied)  
N
Inner diameter of the drain hose  
Flexible hose is connected  
Flexible hose is not connected  
Adhesives  
1
4
32mm/1 inch(Outer diameter)  
27mm/1inch(Outer diameter)  
Insulation drain pipe  
Insulation cover drain  
Note  
N Give a slightly slant to the drain hose for proper drainage of  
condensate.  
N Secure the drain hose with the band joint and the cable-tie  
CAUTION  
Must fit tightly against  
body without any gap.  
not to be separated from the unit.  
Wrap the drain hose with the insulation drain as shown in figure and secure it.  
3
No gap  
Note  
N When connecting the drain hose without the flexible hose,  
you should attach it to the drain tube outlet with adhesives  
and tapes to prevent water leaks.  
CAUTION  
Check that the indoor unit is level with the ceiling by using the leveler.  
Do not install air bleeding tubes, as this may  
cause water to spray from the drain tube outlet.  
If it is necessary to increase the height of the drain hose  
somewhat, the portion directly after 30cm/1ft. If it is raised  
higher than 50cm/1 58 ft , there can be water leaks.  
(12")or less  
(3~5ft)  
1~1.5m  
300mm  
Air bleeder  
Band joint  
Flexible hose  
Ceiling  
Ceiling  
Do not give the hose and upward gradient  
after the connection port.  
This will cause water to flow backwards when  
the unit is stopped, resulting in water leaks.  
Do not apply force to the piping on the unit side when  
connecting the drain hose. The hose should not be  
allowed to hang loose from its connection to the unit.  
Fasten the hose to a wall, frame or other support as  
close to the unit as possible.  
Support pieces  
Upward gradient  
1~1.5m(3~5ft)  
1/100 or more  
Ceiling  
Ceiling  
E-42  
Testing the drainage  
You should test the drainage after completing the installation.  
Prepare a little water about 2.0 liter.  
Remove two screws on the cover drain pump and pull out the cover.  
1
Cover drain pump  
Pour water into the indoor unit as shown in figure.  
2
3
Note  
N If you do not pour water inside the water supply intake,  
water may spill from the indoor unit.  
Confirm that the water flows out through the drain hose.  
Note  
N You can check the drainage only when the air conditioner is  
turned on.  
Reassemble the cover drain pump and the screws.  
4
E-43  
Connecting the Indoor Unit Assembly Piping  
There are two refrigerant pipes of differing diameters:  
N
N
N
N
A smaller one(6.35mm, 1/4  
"
) for the liquid refrigerant  
Liquid refrigerant port  
A
A larger one(15.88mm, 5/8  
"
) for the gas refrigerant  
The thickness of tube should not less than 1.0mm(1/16")  
.
Gas refrig-  
erant port  
The inside of copper tube must be clean & has no dust.  
The connection procedure for the refrigerant pipes varies according to the exit  
position of the pipes from the indoor unit, as seen when facing the indoor in  
the “A” side.  
N
N
Liquid refrigerant port  
Gas refrigerant port  
Remove the protection caps on the pipes and connect the assembly  
pipes to each pipe, tightening the nuts, first manually and then with a  
wrench, a spanner applying the following torque.  
1
Outer Diameter  
6.35 mm (1/4")  
15.88 mm (5/8")  
Torque (kgf•cm)  
160(11 35 ft•lb)  
400(29 ft•lb)  
Note  
N If the pipes must be shortened refer to page 45.  
a. When the indoor unit is above the outdoor  
unit  
Must use insulator which is thick enough to cover the refrigerant tube to  
protect the condensate water on the outside of pipe falling onto the floor  
and the efficiency of the unit will be better.  
2
Indoor unit  
Cut off any excess foam insulation.  
3
4
5
Outdoor unit  
Be sure that there must be no crack or wave on the bended area.  
Oil trap(Must be installed  
every 6m/20ft)  
It would be necessary to double the insulation thickness(10mm/ 38 " or  
more) to prevent condensation even on the insulator when if the installed  
area is warm and humid.  
Shape an oil trap as shown in figure. The oil trap must be formed every  
level difference of 6m(20ft).  
b. When the outdoor unit is above the indoor  
unit  
6
7
Outdoor unit  
For further details on connecting up to the outdoor unit and purging the  
refrigerant circuit, refer to page 49.  
Oil trap(Must be installed  
every 6m/20ft)  
Note  
N The pipes will be insulated and fixed permanently into position  
once the whole installation has been tested for gas leaks;  
refer to page 53 for further details.  
Indoor unit  
Radius  
(2")  
5cm  
Oil trap  
(suction tube)  
E-44  
Cutting/Flaring the Pipes  
Connect the pipe within 30m(100ft) and cutting pieces will not be gone  
into the pipe as being clean to pipe section.  
Make sure that you have the required tools available (pipe cutter, reamer,  
flaring tool and pipe holder).  
1
If you wish to shorten the pipes, cut it with a pipe cutter, taking care to  
ensure that the cut edge remains at a 90° angle with the side of the pipe.  
Refer to the illustrations below for examples of edges cut correctly and  
incorrectly.  
2
O
90  
Oblique  
Rough  
Burr  
To prevent any gas from leaking out, remove all burrs at the cut edge of the  
pipe, using a reamer.  
3
4
Slide a flare nut on to the pipe and modify the flare.  
Outer Diameter(D)  
6.35 mm (1/4")  
15.88 mm (5/8")  
Depth (A)  
1.3 mm(5/100")  
2.2 mm(9/100")  
Check that the flaring is correct, referring to the illustrations below for  
examples of incorrect flaring.  
5
Inclined  
Damaged Surface  
Cracked  
Uneven Thickness  
Align the pipes and tighten the flare nuts first manually and then with  
a wrench, applying the following torque.  
6
7
Outer Diameter  
6.35 mm (1/4")  
15.88 mm (5/8")  
Torque(kgf•cm)  
160(1135 ft•lb)  
400(29 ft•lb)  
For further details on how to connect up to the outdoor unit and purge  
the circuit, refer to page 49.  
CAUTION  
N
In case of welding the pipe, you must weld with nitrogen  
gas blowing.  
E-45  
Connecting the Cables to the Outdoor Unit  
Two electric cables must be connected to the outdoor unit.  
NThe connection cord connecting the indoor unit to the outdoor unit  
NThe power cable connecting the auxiliary circuit breaker to the  
outdoor unit  
Remove the terminal board cover on the side of the outdoor unit.  
1
Connect the connection cord(1, 2, 3, ) and power cable(L1, L2) to  
terminals through the conduit hole as shown in the diagram.  
2
Connect the power cable to the auxiliary circuit breaker.  
An all pole disconnection from the power supply must be incorporated in the  
fixed wiring(≥3mm/ 18 ").  
3
4
Replace the terminal board cover, carefully tightening the screw.  
Indoor Unit  
Conduit hole  
EARTH  
Communication  
Power  
Outdoor Unit  
Power Cable  
Auxiliary circuit  
breaker  
Wiring Diagram  
CAUTION  
N
Keep the power cable and the connection cord in a steel  
pipe to protect them against liquids, outside impacts  
and so on.  
E-46  
Checking Correct Grounding  
If the power distribution circuit does not have an earth or the ground does  
not comply with specifications, an grounding electrode must be installed.  
The corresponding accessories are NOT supplied with the air conditioner.  
Select an grounding electrode that complies with the specifications given  
in the illustration.  
1
2
Determine a suitable location for the grounding electrode:  
N In damp hard soil rather than loose sandy or gravel soil that has a  
higher grounding resistance  
(
)
50cm 2ft  
N Away from underground structures or facilities, such as gas pipes,  
water pipes, telephone lines and underground cables  
N At least two metres away from a lightening conductor grounding  
electrode and its cable  
Note  
N
The grounding wire for the telephone line cannot be used  
to ground the air conditioner.  
Finish wrapping insulating tape around the rest of the pipes leading to the  
outdoor unit.  
3
4
Install a green/yellow coloured grounding wire (Ø1.6 mm/  
16  
1 ", section  
3
2 mm2/1000 in2 or greater):  
N If the grounding wire is too short, connect an extension lead, in a  
mechanical way and wrapping it with insulating tape (do not bury the  
connection)  
N Secure the grounding wire in position with staples  
Note  
N
If the grounding electrode is installed in an area of heavy  
traffic, its wire must be connected securely.  
Carefully check the installation, by measuring the grounding resistance  
with an ground resistance tester. If the resistance is above required level,  
drive the electrode deeper into the ground or increase the number of  
grounding electrodes.  
5
6
Connect the grounding wire to the electrical component box inside of the  
outdoor unit.  
E-47  
Fixing the Unit in Position  
The outdoor unit must be installed on a rigid and stable base to avoid any  
increase in the noise level and vibration, particularly if the outdoor unit is to  
be installed close to a neighbour. If it is to be installed in a location exposed to  
strong winds or at a height, the unit must be fixed to an appropriate support  
(wall or ground).  
Position the outdoor unit so that the air flow is directed towards the  
outside.  
1
2
3
Attach the outdoor unit to the appropriate support using anchor bolts.  
(26")  
660mm  
If the outdoor unit is exposed to strong winds, install shield plates around  
the outdoor unit, so that the fan can operate correctly.  
E-48  
Connecting Up and Removing Air In the Circuit  
2
The outdoor units is loaded with sufficient R-22 refrigerant for 5 m(16 ft) of  
5
piping. The air in the indoor unit and in the pipe must be purged. If air  
remains in the refrigeration pipes, it will affect the compressor, reduce to  
cooling capacity and could lead to a malfunction. Refrigerant for air purging  
is not charged in the outdoor unit. Use Vacuum Pump as shown at the figure.  
Adding Refrigerant  
2
5
Refrigerant must be added if the piping measures more than 5 m(16 ft) in  
length (maximum of “A” m/ft). The quantity of additional refrigerant is  
variable according to the installation situation. Thus, make sure the outdoor  
unit situation before adding refrigerant. This operation can only be performed  
by a qualified refrigeration specialist.  
B
If you have used...  
Then...  
Model  
A
a
b
More than 5 m(16 25 ft)  
of the pipes  
“B” of refrigerant (R-22) must be  
added for each extra metre.  
40g  
50g  
ACC2400C  
ACC2800C  
30m  
(0.43oz) (0.54oz)  
(100ft)  
Less than 5 m(16 25 ft)  
of piping  
The purge time is normal  
For details about the installation  
situation(a or b), refer to page 44.  
Outdoor unit  
Indoor unit  
Connect each assembly pipe to the appropriate valve on the outdoor unit  
and tighten the flare nut.  
1
2
A
C
Gas pipe side  
Referring to the illustration opposite, tighten the flare nut on section B first  
manually and then with a wrench, applying the following torque.  
Liquid pipe side  
B
D
Outer Diameter  
6.35 mm (1/4")  
15.88 mm (5/8")  
Torque (kgf•cm)  
160(1135 ft•lb)  
400(29 ft•lb)  
Connect the charging hose of low pressure side of manifold gauge to the  
packed valve having a service port as shown at the figure.  
3
Open the valve of the low pressure side of manifold gauge counter  
clockwise.  
4
5
Purge the air from the system using vacuum pump for about 10 minutes.  
N Close the valve of the low pressure side of manifold gauge clockwise.  
N Make sure that pressure gauge show -0.1MPa(-76cmHg) after about  
10 minutes. This procedure is very important in order to avoid gas leak.  
N Turn off the vacuum pump.  
Vacuum  
pump  
N Remove the hose of the low pressure side of manifold gauge  
maintaining a vacuum.  
A(gas)  
Set valve cork of both liquid side and gas side of packed valve to the  
open position.  
6
7
8
B(liquid)  
Mount the valve stem nuts and the service port cap to the valve, and  
tighten them at the torque of 183kgfcm(13ft•lb) with a torque wrench.  
Check for gas leakage.  
N At this time, especially check for gas leakage from the 3-way valve’s  
stem nuts(A port), and from the service port cap.  
3-way valve  
E-49  
Performing Leak Tests  
Before completing the installation (insulation of the hose and piping),  
you must check that there are no gas leaks.  
A
To check for gas leaks on the...  
Then, using a leak detector,  
check the...  
B
Indoor unit  
Flare nuts at the end of sections  
A and B.  
Outdoor unit  
Valves on sections C and D.  
D
C
E-50  
Insulation  
Once you have checked that there are no leaks in the system,  
you can insulate the piping and hose.  
To avoid condensation problems, place heat-resistant polyethylene foam  
1
No gap  
separately around each refrigerant pipe.  
Note  
N Always make the seam of pipes face upwards.  
heat-resistant  
polyethylene foam  
Wind insulating tape around the pipes and drain hose.  
2
3
Insulation  
cover pipe  
Insulation Pipe  
5/8"  
Body  
Finish wrapping insulating tape around the rest of the pipes leading to the  
outdoor unit.  
Be sure to overlap  
the insulation  
CAUTION  
Must fit tightly against  
body without any gap.  
E-51  
Installing the Front Panel  
Open the electrical component box cover removing the screws.  
1
2
Connect the cables of the front panel to the PCB as shown in figure.  
Front Panel  
Front panel fixing holes  
Close the electrical component box cover and secure the screws.  
3
Eye  
Install the front panel using two hooks on the both sides of the indoor  
unit.  
4
5
Secure the front panel to the indoor unit using the bolts(4EA).  
Hook and Eye  
Note  
N When user’s optional accessory is a wireless remote controller, you  
have to install the receiver & display unit; refer to page 60.  
N There are four kinds of air blocking kits. Fill up the air outlet(s) with  
one or more kits depending on the situation, then install the  
insulation to block air completely.  
Air blocking  
kit  
E-52  
Setting Up Option Switches  
IMPORTANT : Before setting up the option switches, always make sure  
that you have turned off the main power.  
Main PCB in the Indoor Unit  
Rotary Digital Switch(SW1)  
A user can operate up to sixteen air conditioners by using the wired  
remote controller. Before controlling more than one air conditioner,  
you should connect the air conditioner each other. And you must assign  
addresses to the air conditioners. For further details on connecting air  
conditioners, refer to page 62. If the user would like to control only  
one air conditioner, make sure that the arrow is at “0” position.  
Turn the arrow to the desired position referring to the table below.  
Number of  
indoor unit(s)  
Number of  
indoor unit(s)  
Switch No.  
Switch No.  
0
1
2
3
4
5
6
7
One  
Two  
8
9
Nine  
Ten  
Three  
Four  
Five  
A
B
C
D
E
F
Eleven  
Twelve  
Thirteen  
Fourteen  
Fifteen  
Sixteen  
Six  
Seven  
Eight  
DIP Switch(SW2)  
Adjust the switch to the desired position referring to the table below.  
Switch Position  
ON OFF  
Switch  
No.  
Option Item  
Note  
Not supplied  
Ventilator Fan  
Not installed  
Installed  
Installed  
1
2
3
4
5
Drain Pump  
Not installed  
Not installed  
2,000 hours  
High speed  
Float Switch  
Installed  
Filter Cleaning Cycle  
1,000 hours  
Indoor Fan Motor Speed Normal  
Note  
N Make sure that the No.2 and No.3 switches are at “ON” position.  
E-53  
Setting Up Option Switches (Cont.)  
Sub PCB in the Indoor Unit  
CN20 Connector  
Unit A  
(Address 0)  
Remove the CN20 connector in the sub PCB, if necessary, referring to the  
table below. (This procedure is needed only when the user would like to  
control a group by using the wired remote controller.)  
CN20 Connector  
Unit B  
(Address 1)  
Address  
0
Situation of the CN20 Connector  
Connected  
1 - F  
Removed  
Unit C  
(Address 2)  
No t e  
N Up to 16 air conditioners can be controlled with one wired  
remote controller.  
N If the user does not want to control a group, do not remove the  
CN20 Connector.  
PCB in the Wired Remote Controller  
Dip Switch(DS01)  
Adjust the DIP switch No.2 and/or No.4 to the desired position referring to  
the table below.  
Switch Position  
Switch  
No.  
Option Item  
ON  
OFF  
Type of unit  
Cooling only  
Heat pump  
1
Number of air conditioner(s) controlled  
by the wired remote controller  
Group  
controlling  
One indoor unit  
controlling  
2
Unit of temperature  
3
4
OF  
OC  
Using wireless remote controller  
Can be used  
Cannot be used  
E-54  
Centralized Controller  
DIP Switch(DS01)  
Adjust the DIP switch to the desired position referring to the table below.  
Switch  
No.  
1
2
3
4
Meaning  
The air conditioner is operated by the controller  
adjusted last among the wired remote controller,  
wireless remote controller and centralized controller.  
OFF OFF OFF OFF  
OFF OFF OFF ON  
OFF OFF ON OFF  
A user can use wired/wireless remote controller when  
the centralized controller is switched on.  
And he/she cannot use the remote controller(s) when  
the centralized controller is switched off.  
Switch  
Position  
The air conditioner(s) can be controlled by only the  
centralized controller. The user cannot use the  
wired/wireless remote controller in this case.  
Note  
N You cannot install the centralized controller when the wired  
remote controller for a group has already been installed.  
Transmitter  
Rotary Digital Switch(DS01)  
A user can turn on/off up to sixteen air conditioners by using the centralized  
controller. To use the controller, you must assign addresses to the air conditioners.  
For further details on connecting air conditioners, refer to page 63.  
If the user would like to control only one air conditioner, make sure that  
the arrow is at “0” position.  
Turn the arrow to the desired position referring to the table below.  
Number of  
indoor unit(s)  
Number of  
indoor unit(s)  
Switch No.  
Switch No.  
0
1
2
3
4
5
6
7
One  
Two  
8
9
Nine  
Ten  
Three  
Four  
Five  
A
B
C
D
E
F
Eleven  
Twelve  
Thirteen  
Fourteen  
Fifteen  
Sixteen  
Six  
Seven  
Eight  
E-55  
Setting Up Option Switches (Cont.)  
Original Position of Option Switches  
The option switches are preset by the manufacturer. Refer to the table  
below, if necessary.  
Component No.  
State  
Option Place  
Rotary Digital Switch(SW1)  
DIP Switch(SW2)  
0
ON  
Main PCB in the  
indoor unit  
Jumper Wire(SW05)  
CN20 Connector  
SHORT  
Connected  
OFF  
Sub PCB in the indoor unit  
Wired Remote Controller  
Centralized Controller  
Transmitter  
DIP Switch(DS01)  
DIP Switch(DS01)  
OFF  
Rotary Digital Switch(DS01)  
0
Note  
N Before setting up the options, always make sure  
that you have switched off the main power.  
N After adjusting the options, you should supply the  
power. Otherwise, the options will not be applied.  
E-56  
Wired Remote Controller Installation (Optional)  
Accessories  
Wired Remote  
Controller(1)  
Cable-Tie(2)  
Cable Clamp(5)  
TH M4 X 16 Tapped  
Screw(7)  
Disassemble the wired remote controller by using two grooves  
on the top of it.  
1
Secure the rear cover of the wired remote controller on the wall with two  
screws.  
2
3
Connect the R1, R2 and R3 terminals in the wired remote controller to  
each R1, R2 and R3 terminals on the electrical component box.  
Indoor Unit  
CAUTION  
N
Do NOT keep the wired remote controller cables with a 220V  
cable because the remote controller cables have low voltage.  
Do NOT input 220V power to the R1, R2 and R3 in the wired  
remote controller.  
N
Note  
Cable Specifications  
Cable type  
Double-insulation, 3G  
0.3mm2~0.75mm2  
Wired  
Remote  
Controller  
Size of cables  
Max. length of electric wires from the  
indoor unit to the wired remote controller  
100m(109 yd)  
Reassemble the wired remote controller.  
4
CAUTION  
N The optional kits must be installed by an installation specialist.  
N Before installing the optional kits, ensure that you have turned  
off the main power.  
N All optional kits cables should be installed according to the  
national wiring rules and you must install them in the wall not  
to be touched by users.  
E-57  
Centralized Controller Installation (Optional)  
Accessories  
Centralized Controller(1)  
Cable-Tie(2)  
Cable Clamp(5)  
Cable-Tie(2)  
TH M4 X 16 Tapped  
Screw(7)  
Transmitter(1)  
Spacer Support(4)  
Open the centralized controller cover by using two grooves on the top of it.  
1
2
Secure the rear cover of the centralized controller on the wall with two  
screws.  
Secure the transmitter with four spacer supports into the electrical  
component box.  
3
Electrical component box  
Transmitter  
Main PCB  
Sub PCB  
Connect the cable from the PCB to the transmitter.  
And connect another cable from the O1, O2 terminals to the transmitter as  
shown in figure.  
4
E-58  
Connect the O1 and O2 terminals of the centralized controller to the O1 and  
O2 terminals on the electrical component box as shown in figure.  
5
CAUTION  
N
Do NOT keep the centralized controller cables with a 220V cable  
because the centralized controller cables have low voltage.  
Note  
Cable Specifications  
Cable type  
Double-insulation,  
2G(Shield Cable)  
Centralized  
Controller  
Size of cables  
0.75mm2~1.25mm2  
208-230V~, 60Hz  
Max. length of electric wires from the  
indoor unit to the centralized controller  
1000m(1094 yd)  
Connect the power cables.  
6
Note  
Cable Specifications  
Cable type  
Double-insulation,  
2G  
Power Supply  
Size of cables  
0.75mm2~1.25mm2 208-230V~, 60Hz  
Reassemble the centralized controller.  
7
CAUTION  
N The optional kits must be installed by an installation specialist.  
N Before installing the optional kits, ensure that you have turned  
off the main power.  
N All optional kits cables should be installed according to the  
national wiring rules and you must install them in the wall not  
to be touched by users.  
E-59  
Receiver & Display Unit Installation (Optional)  
Accessories  
Wireless Remote  
Controller(1)  
Battery(2)  
FH M4 X 16 Tapped  
Screw(2)  
Remote Controller  
Holder(1)  
Receiver & Display  
Unit(1)  
In case of using the wireless remote controller, you must install the  
receiver & display unit to the front panel before fixing the panel.  
Disassemble four screws on the place where you would like to install the  
receiver & display unit, inside the front panel.  
1
Remove the part of the front panel.  
2
Secure the receiver & display unit with the screws,  
then install the insulation.  
3
Connect the end of the connector wire to the receiver & display unit and  
connect the other end of the wire to the electrical component box as  
shown in figure.  
4
Receiver  
& Display  
Unit  
CAUTION  
N
Optional kits must be installed by an air conditioner  
specialist.  
Before installing the optional kits, ensure that you have  
turned off the main power.  
N
E-60  
Bio-Pure Filter Installation (Optional)  
The air conditioner can be fitted with a Bio-Pure filter to remove minute dust  
particles. The service life of the filter is approximately three months  
depending on the time during which the air conditioner is used.  
Remove the vinyl packing from the filter.  
1
Note  
Do not remove the packing from a bio-pure filter until you wish  
to use the filter, as it will lose its properties.  
Open the front grille by pulling the tabs on the grille.  
Remove the safety clips to open the grille completely.  
2
3
Pull out the air filter.  
4
5
Locate the bio-pure filter on the center of the air filter.  
Secure the bio-pure filter with four screws.  
Reinstall the filter and the front grille.  
6
7
E-61  
Controlling a Group  
You should adjust the option switches in the electrical component box or on the PCB of the wired remote  
controller.  
Before setting up the option switches, always make sure that you have turned off the main power.  
After adjusting the options, you should supply the power. Otherwise, the options will not be applied.  
With Wired Remote Controller  
A user can operate up to sixteen air conditioners by using the wired remote controller.  
In this case, the air conditioner can be controlled by only one wired remote controller  
connected to the indoor unit and cannot be controlled by the others.  
Unit A  
Connect the R1, R2 and R3 terminals in the wired remote controller to  
each R1, R2 and R3 terminals in any indoor unit “A”.  
1
2
Unit B  
Unit C  
Connect the R1 and R3 terminals in the indoor unit “A” to the R1 and R3  
terminals in another indoor unit “B”.  
CAUTION  
When connecting the cables, you must keep these :  
N
N
N
The R1 terminals must be connected to the R1s.  
The R3 terminals must be connected to the R3s.  
Do not connect the R2 terminals to anywhere.  
If you connect R2 terminals, the PCB will be damaged.  
CN20 Connector  
Connect the R1 and R3 terminals of “B” to any indoor unit “C” and connect  
the others as the same way.  
3
4
Adjust the rotary digital switch in the main PCB to the desired position  
referring to the table below.  
Number of  
indoor unit(s)  
Number of  
indoor unit(s)  
Switch No.  
Switch No.  
0
1
2
3
4
5
6
7
One  
Two  
8
9
Nine  
Ten  
Three  
Four  
Five  
A
B
C
D
E
F
Eleven  
Twelve  
Thirteen  
Fourteen  
Fifteen  
Sixteen  
Six  
Seven  
Eight  
Remove the CN20 connectors on the sub PCBs except the unit connected  
with remote controller(Address 0).  
5
6
Adjust the DIP switch No. 2 in the wired remote controller to “ON” position.  
Note  
You cannot install the centralized controller when the wired  
remote controller for a group has already been installed.  
E-62  
With Centralized Controller  
A user can turn on/off up to sixteen air conditioners by using the centralized controller.  
In this case, the user can turn on/off all air conditioners or a specific air conditioner  
connected with the centralized controller. And each air conditioner can be controlled  
by its own remote controller(s) depending on the setting.  
Connect the O1 and O2 terminals in the centralized controller to the O1  
and O2 terminals in the indoor unit “A”.  
1
Connect the O1 and O2 terminals in the indoor unit “A” to the O1 and O2  
terminals in another indoor unit “B”.  
2
Connect the O1 and O2 terminals of “B” to any indoor unit “C” and  
connect the others as the same way.  
3
4
Adjust the DIP switch(DS01) in the centralized controller to the desired  
position referring to the table below.  
Switch  
No.  
Centralized  
Controller  
1
2
3
4
Meaning  
The air conditioner is operated by the controller  
adjusted last among the wired remote controller,  
wireless remote controller and centralized controller.  
OFF OFF OFF OFF  
OFF OFF OFF ON  
OFF OFF ON OFF  
A user can use wired/wireless remote controller when  
the centralized controller is switched on.  
And he/she cannot use the remote controller(s) when  
the centralized controller is switched off.  
Unit A  
Unit B  
Unit C  
Switch  
Position  
The air conditioner(s) can be controlled by only the  
centralized controller. The user cannot use the  
wired/wireless remote controller in this case.  
Adjust the rotary digital switch on the transmitter to the desired position  
referring to the table on page 55.  
5
Centralized  
controller  
Note  
You cannot install the centralized controller when the wired  
remote controller for a group has already been installed.  
E-63  
Checking and Testing Operations  
To complete the installation, perform the following checks and tests to  
ensure that the air conditioner is operating correctly.  
Review all the following elements in the installation:  
N Piping connection tightness to detect any gas leakages  
N Connecting wiring  
N Heat-resistant insulation of the piping  
N Drainage  
N Earthing wire connection  
N Correct operations(follow the steps below)  
Wired Remote Controller  
Supply the power and switch on the air conditioner.  
1
2
Press Test button more than 3 seconds without selecting any mode.  
Result: The air conditioner runs in COOL mode for 3 minutes.  
Note  
If the error code is displayed, fix the error referring to page 66.  
And supply the power, restart testing.  
Check that user's option(s) and the outdoor unit operate properly.  
3
Note  
Do not attempt to select the operating mode or to adjust the  
temperature. It may switch the outdoor unit off.  
Press the Swing(  
properly.  
) button and check that the air flow blades work  
4
5
The air conditioner will switch it off automatically after 3 minutes.  
Note  
If the air conditioner does not work because of switching off the  
thermistor sensor caused by the room temperature,  
you can operate the air conditioner by using Test button.  
E-64  
Wireless Remote Controller  
Supply the power and switch on the air conditioner.  
1
2
3
Remove the remote controller batteries.  
Insert the batteries pressing the On Timer and Off Timer buttons at the  
same time.  
Stop pressing the buttons after inserting the batteries.  
4
5
Press the  
(ON/OFF) button.  
Result: The air conditioner runs in COOL mode for 3 minutes.  
Note  
If the error code is displayed, fix the error referring to page 67.  
And supply the power, restart testing.  
Check that user’s option(s) and the outdoor unit operate properly.  
6
Note  
Do not attempt to select the operating mode or to adjust the  
temperature. It may switch the outdoor unit off.  
Press the Swing(  
properly.  
) button and check that the air flow blades work  
7
8
The air conditioner will switch it off automatically after 3 minutes.  
E-65  
Troubleshooting  
Wired Remote Controller  
If the error occurs,  
and the error code are displayed on the wired remote controller.  
The error code blinks for 5 seconds and it disappears. If you would like to see the error  
code after disappearing it, press the Test button.  
Meaning of Error Code  
The error code is composed of two-digit figures or letters. The first means an indoor unit  
address and the second means an error code.  
Error Code  
Meaning  
Checking area  
1
5
6
Indoor unit thermistor  
sensor error  
N Indoor unit thermistor sensor  
N PCB of the indoor unit  
Indoor unit pipe thermistor  
sensor error  
N Indoor unit pipe thermistor sensor  
N PCB of the indoor unit  
Outdoor unit thermistor  
sensor error  
N Outdoor unit thermistor sensor  
N PCB of the outdoor unit  
9
Float switch error  
N Drain pump, Float switch  
N Drain system  
N DIP switch(SW2) of the indoor unit  
(The No.2 and No.4 switches must be  
at “ON” position.)  
A
C
A Indoor and Outdoor  
communication error  
N Communication cables of indoor and  
outdoor units  
N PCB of indoor and outdoor units  
Wired remote controller  
communication error  
N Wired remote controller cables,  
Wired remote controller  
N Main/Sub PCB of the indoor unit  
D
Outdoor pipe thermistor  
sensor error  
N Outdoor pipe thermistor sensor  
N PCB of the outdoor unit  
Example “39” means the address “3” indoor unit has a trouble with a float switch.  
E-66  
Receiver & Display Unit  
If the error occurs, the indicators on the receiver & display unit displays the error.  
Meaning of Error Code  
Indicators  
Meaning  
Checking area  
Timer Operating Filter  
Indoor unit thermistor  
sensor error  
N Indoor unit thermistor sensor  
N PCB of the indoor unit  
Indoor unit pipe thermistor  
sensor error  
N Indoor unit pipe thermistor sensor  
N PCB of the indoor unit  
L
L
L
Outdoor unit thermistor  
sensor error  
N Outdoor unit thermistor sensor  
N PCB of the outdoor unit  
L
L
Float switch error  
N Drain pump, Float switch  
N Drain system  
Indoor and Outdoor  
communication error  
N Communication cables of indoor and  
outdoor units  
L
N PCB of indoor and outdoor units  
Wired remote controller  
communication error  
N Wired remote controller cables,  
Wired remote controller  
N Main/Sub PCB of the indoor unit  
Outdoor pipe thermistor  
sensor error  
N Outdoor thermistor pipe sensor  
N PCB of the outdoor unit  
: OFF  
: Blinking L L : Blinking at once  
: Blinking alternately  
E-67  
Explaining Operations to the Owner  
Before leaving the premises on which you have installed the air conditioner,  
you should explain the following operations to the owner, making reference  
to the appropriate pages in the owner’s instruction booklet.  
How to start and stop the air conditioner.  
1
How to select the operating mode and adjust the temperature and fan  
settings.  
2
How to set the timers.  
3
4
How to remove and clean the air filter.  
Once the owner is happy with the basic operations, hand over the owner’s instruction  
booklet and this installation manual for storage in a handy and safe place.  
E-68  
Memo  
E-69  
THIS AIR CONDITIONER IS MANUFACTURED BY:  
ESTE AIRE ACONDICIONADO HA SIDO FABRICADO POR:  
CE CLIMATISEUR EST FABRIQUE PAR:  
ELECTRONICS  
Printed in Korea  

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