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
I
I
I
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
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Separat
Split
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Condizi
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Climatis
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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 183kgf•cm(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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