Fujitsu ASYA07LBCM User manual

SPLIT TYPE
ROOM AIR CONDITIONER
Models Indoor unit Outdoor unit
AOYA14LAC2
INVERTER MULTI
SERVICE
INSTRUCTION
R410A
Wall Mounted type
ASYA07LBCM
ASYA09LBCM
ASYA12LBCM

CONTENTS
1. DESCRIPTION OF EACH CONTROL OPERATION
1. CAPACITY CONTROL................................................................................................
3. INDOOR FAN CONTROL...........................................................................................
2. AUTO CHANGEOVER OPERATION..........................................................................
5. LOUVER CONTROL...................................................................................................
4. OUTDOOR FAN CONTROL.......................................................................................
7. TIMER OPERATION CONTROL................................................................................
6. COMPRESSOR CONTROL........................................................................................
9. TEST OPERATION CONTROL..................................................................................
8. ELECTRONIC EXPANSION VALVE CONTROL........................................................
11. 4-WAY VALVE EXTENSION SELECT.......................................................................
10. PREVENT TO RESTART FOR 3 MINUTES ( 3 MINUTES ST )................................
13. MANUAL AUTO OPERATION....................................................................................
12. AUTO RESTART........................................................................................................
15. DEFROST OPERATION CONTROL...........................................................................
14. COMPRESSOR PREHEATING..................................................................................
18. VARIOUS PROTECTIONS.........................................................................................
16. OFF DEFROST OPERATION CONTROL..................................................................
01-01
01-01
01-02
01-05
01-06
01-07
01-08
01-12
01-12
01-12
01-12
01-13
01-13
01-14
01-16
01-17
17. 10 C HEAT OPERATION........................................................................................... 01-16
01-13
2-1-2 WIRED REMOTE CONTROLLER DISPLAY......................................................
2-1-1 INDOOR UNIT DISPLAY....................................................................................
2-1 ERROR DISPLAY......................................................................................................
2. TROUBLE SHOOTING
2-2 TROUBLE SHOOTING WITH ERROR CODE..........................................................
2-3 TROUBLE SHOOTING WITH NO ERROR CODE....................................................
2-4 SERVICE PARTS INFORMATION............................................................................
02-01
02-01
02-02
02-29
02-04
02-34
3. REPLACEMENT PARTS

1 . DESCRIPTION OF EACH
CONTROL OPERATION
R410A
INVERTER (MULTI )
Wall Mounted type

2. AUTO CHANGEOVER OPERATION
01-01
1. CAPACITY CONTROL
1-1 COOLING, HEATING, DRY CAPACITY CONTROL
Compressor frequency decides by capacity of an indoor unit, operation number of an indoor unit,
set temperature, room temperature and outside temperature.
When the air conditioner is set to the AUTO mode by remote control, operation starts in the optimum
mode from among the HEATING, COOLING and MONITORING modes. During operation, the
optimum mode is automatically swiched in accordance with temperature changes. The temperature
can be set between 18°C and 30°C in 1 degC steps.
When operation starts, only the indoor fan is operated for 2 minute. (Air flow mode: Qu)
After 2 minute, depends on the room temperature and outdoor air temperature,
the operation mode is selected in accordance with the table below.
1
Ts : Setting temperature
Tb: Room temperature
When COOLING was selected at , the same operation as COOLING OPERATION is performed.
When HEATING was selected at , the same operation as HEATING OPERATION is performed.
When the compressor was stopped for 6 consecutive minutes by the temperature control function
after the COOLING or HEATING operation mode was selected at above, operation is switched
to MONITORING and the operation mode is selected again.
1
2
31
4
1
( Table 1 : Operation mode selection table )
Room temperature :Tb
Outdoor temperature :To
Tb > Ts +2 degC
Ts -2 degC > Tb
==
Ts +2 degC > Tb > Ts-2 degC
Cooling
(Automatic Dry)
Cooling
(Automatic Dry)
Monitoring
Monitoring Monitoring Monitoring
Monitoring
Heating Heating
A zone B zone C zone
A zone
B zone
C zone
32°C
10°C
( Fig.1 : Outdoor air temperature zone selection )

3. INDOOR FAN CONTROL
1. Fan speed
( Table 2 : Indoor Fan Speed )
01-02
Operation mode Air flow mode Speed (rpm)
Hi 1220
1100
920
680
Me
Lo
Dry
(Refer Fig 2)
Monitoring
Quiet
Hi
Me
Lo
Quiet
1160
1100
980
700
600
480
Cool air prevention
S- Lo
Cooling
Heating
ASYA07/09LBCM
Me+
1220
X zone : 680
J zone : 650
Y zone : 0 480
ASYA12LBCM
Operation mode Air flow mode Speed (rpm)
Hi 1440
1200
920
680
Me
Lo
Dry
(Refer Fig 2)
Monitoring
Quiet
Hi
Me
Lo
Quiet
1370
1200
980
700
600
480
Cool air prevention
S- Lo
Cooling
Heating
Me+
1440
X zone : 680
J zone : 650
Y zone : 0 480
2. FAN OPERATION
The airflow can be switched in 6 steps such as AUTO, QUIET, LOW, MED, MED+, HIGH,
while the indoor fan only runs.
3. COOLING OPERATION
(Fig.1)
airflow change - over ( Cooling: AUTO ) When the room
temperature rises
Lo mode
When the room
temperature lowers
Hi mode
Me mode
TR : Room temperature
Ts : Setting temperature
TR-Ts > 2 degC
=
1 degC > TR-Ts
2 degC > TR-Ts > 1 degC
=
TR-Ts > 2.5 degC
=
1.5 degC > TR-Ts
2.5 degC > TR-Ts > 1.5 degC
=
Switch the airflow [AUTO], and the indoor fan motor will run according to a room temperature,
as shown in Figure 1.
On the other hand, if switched in [HIGH] [QUIET], the indoor motor will run at a constant airflow of [COOL]
operation modes QUIET, LOW, MED, HIGH,as shown in Table 2.

01-03
4. HEATING OPERATION
Switch the airflow [AUTO], and the indoor fan motor will run according to a room temperature,
as shown in Figure 3.
On the other hand, if switched in [HIGH] [QUIET], the indoor motor will run at a constant airflow
of [HEAT] operation modes QUIET, LOW, MED, HIGH, as shown in Table 2.
( Fig.3 : Airflow change - over ( Heating : AUTO ) )
TR-Ts > - 1.5 degC
=
- 2.5 degC > TR-Ts
- 1.5 degC > TR-Ts > - 2.5 degC
=
TR-Ts > - 1 degC
=
- 2 degC > TR-Ts
- 1 degC > TR-Ts > - 2 degC
=
When the room
temperature rises When the room
temperature drops
TR : Room temperature
Ts : Setting temperature
Lo mode
Me mode
Me+ mode
5. COOL AIR PREVENTION CONTROL (Heating mode)
47°C
30°C
34°C
Indoor heat exchanger
temperature Indoor heat exchanger
temperature
When the compressor operates, the maximum value of the indoor fan speed is set as shown in Figure 7,
based on the detected temperature by the indoor heat exchanger sensor on heating mode.
When the compressor does not operate, the indoor fan motor operates [S-Lo] mode.
( Fig.7 : Cool Air Prevention Control )
< [Hi] setting >
Hi
Me
Lo
Cool air
prevention
40°C
37°C
40°C
32°C
28°C
40°C
32°C
Indoor heat exchanger
temperature Indoor heat exchanger
temperature
< The other of [Hi] setting >
S-Lo
Lo (Qu)
Cool air
prevention
37°C
30°C
34°C
28°C
Setting
FAN mode
S-Lo
[ ASYA7, 9, 12LBCM: Cool air prevention 600rpm, S-Lo 480rpm ]

01-04
6. DRY OPERATION
Ts+0.5°C
Ts -1.5°C
Ts -0.5°C
Ts+1.5°C
( Fig.3 : Compressor Control based on Room Temperature )
( Fig.4 : Indoor Fan Control )
Room Room
temperature temperature
X zone
J zone
Y zone
Compressor
ON
OFF
Indoor fan
Setting air flow
Indoor fan
(as shown in Table 4)
S-Lo
OFF
10 30 60 180 60 180 60 10 30
(SEC)
Refer to the Table 2.
During the dry mode operation, the fan speed setting can not be changed.

4. OUTDOOR FAN CONTROL
Following table shows the fan speed of the outdoor unit.
01-05
1. Outdoor Fan Motor
*It runs at 500rpm for 20 seconds after starting up the outdoor fan.
( Table 3 : Fan speed of the outdoor unit )
820/ 700/ 410/ 320/ 250/ 200 rpm 900/ 820/ 700/ 410/ 320/ 250 /200 rpm
Cooling Heating
AOYA14LAC2

5. LOUVER CONTROL
01-06
1. VERTICAL LOUVER CONTROL
Each time the button is pressed, the air direction range will change as follow:
Cooling / Dry mode
Heating mode
Fan mode
Use the air direction adjustments within the ranges shown above.
The vertical airflow direction is set automatically as shown, in accordance with the type of operation
selected.
Cooling / Dry mode Horizontal flow
Heating mode Downward flow
When the temperature of the air being blown out is low at the start of heating operation or during
defrosting, the airflow direction temporarily becomes to prevent cold air being blown onto the body.
During use of the Cooling and Dry modes, do not set the Air Flow Direction Louver in the Heating
range ( ) for long period of time, since water vapor many condense near the outlet louvers and
drop of water may drip from the air conditioner. During the Cooling and Dry modes, if the Air Flow
Direction Louvers are left in the hating range for more than 30 minutes, they will automatically
return to position .
During Monitor operation in AUTO CHANGEOVER mode, the airflow direction automatically
becomes , and it cannot be adjusted.
Cooling mode / Dry mode / Fan mode ( )
Heating mode / Fan mode ( )
(Function Range)
(Air Direction Range)
(Operation Range)
2. SWING OPERATION
When the swing signal is received from the remote controller,
the vertical louver starts to swing.
(Swinging Range)
When the indoor fan is either at S-lo or Stop mode, the swinging operation is interrupted
and the louver stops at the memorized position.

6. COMPRESSOR CONTROL
1. OPERATION FREQUENCY RANGE
The operation frequency of the compressor is different based on the operation mode as
shown in the table 4.
Cooling Heating
Min Max Min Max
18Hz 80Hz 18Hz 110HzAOYA14LAC2
(Table 4 : Compressor Operation Frequency Range)
2. OPERATION FREQUENCY CONTROL AT START UP
01-07
The compressor frequency soon after the start-up is controlled as shown in Figure 10.
(Fig.10 : Compressor Control at Start-up)
40Hz
120sec
120sec
60- 720sec
180- 720sec 300- 720sec
56Hz
82Hz

7. TIMER OPERATION CONTROL
1. ON / OFF TIMER
OFF timer : When the clock reaches the set time, the air conditioner will be turned off.
Operation mode
Stop mode
Set time of timer
ON timer : When the clock reaches the set time, the air conditioner will be turned on.
Operation mode
Stop mode
Set time of timer
2. PROGRAM TIMER
01-08
ON / TIMER
OFF / TIMER
PROGRAM TIMER
SLEEP TIMER
The program timer allows the OFF timer and ON timer to be used in combination one time.
Operation mode
Operation will start from the timer setting (either OFF timer or ON timer)
whichever is closest to the clock's current timer setting.
The order of operations is indicated by the arrow in the remote control unit's display.
SLEEP timer operation cannot be combined with ON timer operation.
Stop mode Stop mode Stop mode
Operation mode Operation mode
Set time Set time Set time Set time
7-1 Wireless Remote Controller

01-09
3. SLEEP TIMER
If the sleep timer is set, the room temperature is monitored and the operation is stopped automatically.
If the operation mode or the set temperature is change after the sleep timer is set, the operation is
continued according to the changed setting of the sleep timer from that time ON.
Set temperature rises
( Ts : Set temperature )
Stop of operation
Set temperature lowers
( Ts : Set temperature )
Ts
Stop of operation
In the cooling operation mode
When the sleep timer is set, the setting temperature is increased 1 degC.
It increases the setting temperature another 1 degC after 1 hour.
After that, the setting temperature is not changed and the operation is stopped at the time
of timer setting.
Ts
+1degC
+2degC
-2degC
-1degC
-4degC
-3degC
Set 60min
In the heating operation mode
When the sleep timer is set, the setting temperature is decreased 1 degC.
It decreases the setting temperature another 1 degC every 30 minutes.
Upon lowering 4 degC, the setting temperature is not changed and the operation stops
at the time of timer setting.
Set 30min 30min 30min

1. ON / OFF TIMER
OFF timer : When the clock reaches the set time, the air conditioner will be turned off.
Operation mode
Stop mode
Set time of timer
ON timer : When the clock reaches the set time, the air conditioner will be turned on.
Operation mode
Stop mode
Set time of timer
The weekly timer allows up to two ON and OFF time to set up per day.
Use this timer function to set operating time for each day of the week.
Operation mode
The operating time can be set in 30 min increments only.
The OFF time can be carried over to next day.
The ON timer and the OFF timer functions cannot be set with using the weekly timer.
Both ON and OFF time must be set.
2. WEEKLY TIMER
2-1. WEEKLY TIMER
Stop mode Stop mode Stop mode
Operation mode Operation mode
Set time Set time Set time Set time
01-10
7-2 Wired Remote Controller (OPTION)
ON / TIMER
OFF / TIMER
WEEKLY TIMER
TEMPERATURE SET BACK TIMER

01-11
The DAY OFF setting is only available for days for which weekly settings already exist.
The SET BACK timer only changes the set temperature for 7 days, it cannot be used to start or stop
air conditioner operation.
The SET BACK timer can be set to operate up to two times per day but only one temperature setting
can be used.
During the COOL/DRY mode, the air conditioner will operate at a minimum of 18°C even if
the SET BACK temperature is set to 17°C or lower.
The DAY OFF setting can only be set one time. The DAY OFF setting is cancelled automatically
after the set day has passed.
Normal
Next day setting
If the operating time carries over to the next day (during a next day setting), the effective
DAY OFF range will be set as shown below.
2-2. DAY OFF setting
3. TEMPERATURE SET BACK TIMER
Stop mode Stop mode
Operation mode
Stop mode
Operation mode
Preceding day Next day
DAY OFF
Stop mode Stop mode
Operation mode
Stop mode
Operation mode
DAY OFF
Setting day
Preceding day Next daySetting day
Case of SET BACK timer on the Cooling operation.
( Setting temperature :22°C, SET BACK temperature :26°C)
SET BACK setting
Operation
temperature
Operation
temperature
26°C
22°C
26°C
22°C
24°C
*1
ON OFF OFFON
*1: During the SET BACK function,
the setting temperature is changed. Chenge the setting temperature:
22°C 24°C

8. ELECTRONIC EXPANSION VALVE CONTROL
9. TEST OPERATION CONTROL
The compressor won't enter operation status for 3 minutes after the compressor is stopped,
even if any operation is given.
10. PREVENT TO RESTART FOR 3 MINUTES ( 3 MINUTES ST )
11. 4-WAY VALVE EXTENSION SELECT
01-12
The most proper opening of the electronic expansion valve is calculated and controlled under the
present operating condition based on the following values.
The compressor frequency, the temperatures detected by the discharge temperature sensor
and the outdoor temperature sensor.
The pulse range of the electronic expansion valve control is between 30 to 480 pulses.
At the time of supplying the power to the outdoor unit, the initialization of the electronic
expansion valve is operated (528 pulses are input to the closing direction).
At the time when the air conditioner is switched from the cooling mode to heating mode,
the compressor is stopped, and the 4-way valve is switched in 3 minutes later
after the compressor stopped.
Under the condition where the air conditioner stops, press the MASTER CONTROL button and
the FAN CONTROL button simultaneously for 5 seconds or more, and the test operation control
mode will appear.
During test running, " " will display on the remote controller display.
Set the test operation mode, and the compressor will continue to run regardless of whatever
the room temperature sensor detects.
The test operation mode is released if 60 minutes have passed after setting up the test operation.
With Wired Remote Controller ( without TEST RUN button )
Under the condition where the air conditioner runs, press the TEST RUN button, and
the test operation control mode will appear.
During test running, the operation lamp and timer lamp of the air conditioner body twinkle simultaneously.
Set the test operation mode, and the compressor will continue to run regardless of whether the room
temperature sensor detects.
The test operation mode is released if 60 minutes have passed after setting up the test operation.
With Wireless Remote Controller ( with TEST RUN button )

13. MANUAL AUTO OPERATION (Indoor unit body operation)
If MANUAL AUTO Button is set, the operation is controlled as shown in Table 5.
If the remote control is lost or battery power dissipated, this function will work without the remote
control.
(Table 5 : Manual auto operation)
14. COMPRESSOR PREHEATING
01-13
When the outdoor heat exchanger temperature is lower than Operation temperature (Refer to Table 6)
and the heating operation has been stopped for 3 hours, power is applied to the compressor and
the compressor is heated.
(By heating the compressor, warm air is quickly discharged when operation is started.)
When operation was started, and when the outdoor temperature rises to Release temperature or greater,
preheating is over.
(Table 6 : Preheating Operation / Release Temperature)
Before 24 hour After 24 hour
Operation
temperature
Operation
temperature
Release
temperature
Release
temperature
3°C 7°C 0°C 4°C
OPERATION MODE Auto changeover
FAN CONT. MODE Auto
TIMER MODE Continuous (No timer setting available)
SETTING TEMP. 24°C
SETTING LOUVER Standard
SWING OFF
12. AUTO RESTART
When the power was interrupted by a power failure, etc. during operation, the operation contents
at that time are memorized and when power is recovered, operation is automatically resumed with
the memorized operation contents.
When the power is interrupted and recovered during timer operation, timer operation is canceled,
but only setting time is memorized.
[Operation contents memorized when the power is interrupted]
Operation mode
Set temperature
Set air flow
Timer mode and timer time
Air flow Direction
Swing
10°C HEAT

15. DEFROST OPERATION CONTROL
01-14
2. CONDITION OF THE DEFROST OPERATION COMPLETION
1. CONDITION OF STARTING THE DEFROST OPERATION
Defrost operation is released when the conditions become as shown in Table 8.
(Table 8 : Defrost Release Condition)
Release Condition
Outdoor heat exchanger temperature sensor value is higher than 10°C or
Compressor operation time has passed 15 minutes.
The defrost operation starts when the outdoor heat exchanger temperature sensor detects
the temperature lower than the values shown in Table 7.
(Table 7 : Condition of starting Defrost Operation)
Less than 6 min. *1
or 10min. *2
*3. Outdoor temp. > 3°C
*4. 3 > Outdoor temp. > -1°C
*5. -1 > Outdoor temp. > -5°C
*6. -5 > Outdoor temp. > -10°C
*7. Outdoor temp. < -10°C
*2. Compressor stop time:
Below 20min. Select 6min.
Above 20min. Select 10min.
After 6 min. *1
or 10min. *2
Compressor integrating
operation :Less than 45min.
Compressor integrating
operation :45min and over
-8°C *3
-12°C *4
-14°C *5
-16°C *6
-18°C *7
Does not operate
*1. It means contiguous operation time.
=
=
=
=

The defrosting shall proceed by the integrating operation time
and outdoor heat exchanger temperature as follows.
(Not defrosted for 6 or 10 minutes)
3 sec later Compressor OFF
3 sec later Outdoor fan motor OFF
28 sec later 4-way valve OFF
34 sec later compressor ON
(Frequency : 90 Hz)
Heating operation start : Compressor ON
Defrost Indicator:
[Operation lamp]
7 sec ON / 2 sec OFF
Outdoor heat exchanger temperature: Over 10°C
or
Compressor ON time: Over 15 minutes
Defrost end
01-15
Compressor integrating
operation:
45 minutes and over
Outdoor heat exchanger
temperarure:
Below -14°C
Outdoor heat exchanger
temperarure:
Below -12°C
3 > Outdoor temp. > -1°C
Outdoor heat exchanger
temperarure:
Below -8°C
Outdoor temp. > 3°C
Outdoor heat exchanger
temperarure:
Below -16°C
Outdoor heat exchanger
temperarure:
Below -18°C
-10°C > Outdoor temp.
Defrost start
3. Defrost Flow Chart
=-1 > Outdoor temp. > -5°C = = =
-5°C > Outdoor temp. > -10°C

16. OFF DEFROST OPEARTION CONTROL
1. OFF DEFROST OPERATION CONDITION
When operation stops in the [Heating operation] mode, if frost is adhered to the outdoor unit heat
exchanger, the defrost operation will proceed automatically. In this time, if indoor unit operation
lamp flashes slowly (7 sec ON / 2 sec OFF), the outdoor unit will allow the heat exchanger to defrost,
and then stop.
In heating operation, the outdoor heat exchanger temperature is less than -4°C, and
compressor operation integrating time lasts for more than 30 minutes.
OFF Defrost Flow Chart
Heating operation stop
Outdoor heat exchanger temperature:
Below -4°C
and
Compressor integrating operation:
Over 30 minutes
Defrost start
Defrost Indicater:
[Operation lamp]
7 sec ON / 2 sec OFF
Outdoor heat exchanger temperature:
Over 10°C or
Compressor ON time: Over 15 minutes
Defrost end
2. OFF DEFROST END CONDITION
Release Condition
Outdoor heat exchanger temperature sensor value is higher than 10°C or
Compressor operation time has passed 15 minutes.
01-16
17. 10°C HEAT OPERATION
The 10°C HEAT operation functions by pressing 10°C HEAT button on the remote controller.
The 10°C HEAT operation is almost the same operation as below settings.
mode HEAT
setting temperature 10°C
fan mode AUTO
( Table 16 )

18. VARIOUS PROTECTIONS
1. DISCHARGE GAS TEMPERATURE OVER RISE PREVENTION CONTROL
The discharge gas thermosensor (discharge thermistor : Outdoor side) will detect discharge gas
temperature.
When the discharge temperature becomes higher than 105°C ,the compressor frequency
is decreased 20 Hz, and it continues to decrease the frequency for 20 Hz every 120 seconds until
the temperature becomes lower than 105°C .
When the discharge temperature becomes lower than 95°C ,the control of the compressor
frequency is released.
When the discharge temperature becomes higher than 110°C ,the compressor stops.
When the discharge temperature becomes lower than 80°C ,the compressor operates.
2. CURRENT RELEASE CONTROL
01-17
The compressor frequency is controlled so that the outdoor unit input current does not exceeds
the current limit value that was set up with the outdoor temperature.
The compressor frequency returns to the designated frequency of the indoor unit at the time
when the frequency becomes lower than the release value.
3. ANTI-FREEZING CONTROL (Cooling mode)
The compressor frequency decreases on cooling mode when the indoor heat exchanger
temperature sensor detects the temperature lower than 3°C or 2-way valve temperature
sensor detects the temperature lower than 2°C.
(Fig 13 : Anti-freezing Protection Operation / Release Temperature)
Te : Indoor heat exchange temperature
Tv : 2-way valve temperature
Tout : Outdoor temperature
Te : 3°C or Tv : 2°C
Te : 6°C and Tv : 5°C (Tout > 12°C)
Te : 13°C and Tv : 12°C (Tout < 12°C)
The compressor frequency is
decreased 10Hz every 120 seconds.
Hold
Release of protection
=