Fujitsu ASYG09KMCB Original operating manual

Split type room air conditioner
Wall-mounted type
Inverter
Indoor unit Outdoor unit
SERVICE
INSTRUCTION
ASYG09KMCB
ASYG12KMCB
ASYG14KMCB
AOYG09KMCBN
AOYG12KMCBN
AOYG14KMCBN

CONTENTS
1. DESCRIPTION OF EACH CONTROL OPERATION
1. COMPRESSOR CONTROL.............................................................
3. INDOOR FAN CONTROL.................................................................
2. AUTO CHANGEOVER OPERATION...............................................
5. LOUVER CONTROL.........................................................................
4. OUTDOOR FAN CONTROL.............................................................
6. TIMER OPERATION CONTROL......................................................
8. OFF DEFROST OPERATION CONTROL........................................
7. DEFROST OPERATION CONTROL................................................
10. VARIOUS PROTECTIONS.............................................................
9. VARIOUS CONTROL.......................................................................
01-01
01-05
01-06
01-10
01-12
01-14
01-16
01-18
01-23
01-19
2. TROUBLESHOOTING
1. ERROR DISPLAY.............................................................................
2. TROUBLESHOOTING WITH ERROR CODE..................................
3. TROUBLESHOOTING WITH NO ERROR CODE............................
02-01
02-03
02-23
4. PARTS INFORMATION....................................................................02-28

1 . DESCRIPTION OF EACH
CONTROL OPERATION
Wall-mounted type
INVERTER

1. COMPRESSOR CONTROL
01-01
1. COMPRESSOR FREQUENCY AT NORMAL START-UP
Compressor frequency soon after starting
is controlled as below.
Maximum
frequency
Compressor
SVB130FJDMC
Time
Forced 40 rps operation
for 60 seconds from start-up
60 sec 240 sec 280 sec 360 sec 400 sec
40 rps
90 rps
77 rps
56 rps
99 rps

Fig.1 Outdoor temperature zone
2. COOLING OPEARTION
A sensor (room temperature thermistor) built in the indoor unit body will usually perceive
difference or variation between set temperature and present room temperature, and
controls the operation frequency of the compressor.
Minimum
frequency
Maximum
frequency
AOYG09KMCBN
AOYG12KMCBN
AOYG14KMCBN
8 rps 46 rps
8 rps 68 rps
36°C
A zone
34°C
32°C
B zone
30°C
21°C
C zone
19°C
D zone
Indoor fan mode
Me Lo Quiet
A zone 46 rps
B zone 46 rps
C zone 46 rps
AOYG09KMCBN
D zone 36 rps
E zone 36 rps
F zone 36 rps
34 rps
34 rps
34 rps
32 rps
32 rps
32 rps
30 rps
30 rps
30 rps
28 rps
28 rps
28 rps
20 rps
20 rps
20 rps
20 rps
20 rps
20 rps
01-02
E zone
F zone
10°C
0°C
12°C
2°C
When the room temperature is between +2°C to -2.5°C of the set temperature,
the compressor frequency is controlled within the range shown in Table1.
However, the maximum frequency is limited in the range shown in Fig.1 based on the indoor
fan mode and the outdoor temperature.
If the room temperature is some degrees lower than set temperature,
the compressor will be stopped.
Outdoor
temperature drops
Outdoor
Table.1
temperature rises
Limit of maximum speed based on outdoor temperature
Outdoor
temp. zone Hi
Indoor fan mode
Me Lo Quiet
A zone 80 rps
B zone 80 rps
C zone 80 rps
AOYG14KMCBN
D zone 58 rps
E zone 58 rps
F zone 58 rps
50 rps
50 rps
50 rps
39 rps
39 rps
39 rps
42 rps
42 rps
42 rps
28 rps
28 rps
28 rps
26 rps
26 rps
26 rps
20 rps
20 rps
20 rps
Outdoor
temp. zone Hi
Indoor fan mode
Me Lo Quiet
A zone 68 rps
B zone 68 rps
C zone 68 rps
AOYG12KMCBN
D zone 46 rps
E zone 46 rps
F zone 46 rps
42 rps
42 rps
42 rps
34 rps
34 rps
34 rps
36 rps
36 rps
36 rps
28 rps
28 rps
28 rps
22 rps
22 rps
22 rps
20 rps
20 rps
20 rps
Outdoor
temp. zone Hi
If the room temperature is 2°C higher than set temperature, the compressor operation
frequency will attain to maximum performance.
8 rps 80 rps

3. HEATING OPERATION
01-03
F
Table 2
ig 2. Outdoor temperature zone
A zone
12°C
B zone
14°C
C zone
Indoor fan mode
Me Lo Quiet
87 rps 58 rps 46 rps 39 rps
58 rps 46 rps 32 rps
58 rps 46 rps 26 rps
AOYG09KMCBN
-10°C
-12°C
Outdoor
temperature rises Outdoor
temperature drops
Limit of maximum speed based on outdoor temperature
Outdoor
temp. zone H
87 rps
87 rps87 rps
87 rps87 rps
Auto i
A zone
B zone
C zone
Indoor fan mode
Me Lo Quiet
AOYG14KMCBN
Outdoor
temp. zone HAuto i
A zone
B zone
C zone
Indoor fan mode
Me Lo Quiet
AOYG12KMCBN
Outdoor
temp. zone HAuto i
A zone
B zone
C zone
102 rps 102 rps 63 rps 54 rps
102 rps 102 rps 63 rps 54 rps
102 rps 102 rps 63 rps 54 rps
68 rps 54 rps 46 rps
68 rps 54 rps 36 rps
58 rps 46 rps 32 rps
87 rps87 rps
87 rps87 rps
87 rps87 rps
102 rps
102 rps
102 rps
A sensor (room temperature thermistor) built in the indoor unit body will usually perceive
difference or variation between set temperature and present room temperature, and
controls the operation frequency of the compressor.
Minimum
frequency
Maximum
frequency
AOYG09KMCBN
AOYG12KMCBN
AOYG14KMCBN
10 rps 87 rps
10 rps 87 rps
When the room temperature is between +2.5°C to -3°C of the set temperature,
the compressor frequency is controlled within the range shown in Table 2.
However, the maximum frequency is limited in the range shown in Fig.2 based on
the indoor fan mode and the outdoor temperature.
If the room temperature is some degrees higher than set temperature,
the compressor will be stopped.
If the room temperature is 3°C lower than set temperature,
the compressor operation frequency will attain to maximum performance.
10 rps 102 rps

01-04
4. DRY OPERATION
In dry operation, maximum compressor frequency is defined
by set temperature, and room temperature as below.
Ts+0.5°C
Ts -1.5°C
Ts -0.5°C
Ts+1.5°C
Maximum compressor frequency is defined by zone.
Zone is defined by set temperature and room temperature.
20 rps
16 rps
0 rps
AOYG09KMCBN
X zone
J zone
Y zone
22 rps
18 rps
0 rps
AOYG12KMCBN
X zone
J zone
Y zone
Room temperature drops
Room temperature rises
Ts = Set temperature
26 rps
18 rps
0 rps
AOYG14KMCBN

2. AUTO CHANGEOVER OPERATION
01-05
START
TS: Setting temperature
Thermostat remains
in OFF state for 6 minutes or
longer?
System stops
or operation command other than
auto changeover operation?
NO
Thermostat remains
in OFF state for 6 minutes or
longer?
System stops
or operation command other than
auto changeover operation?
YES
YES
When the air conditioner is set to the AUTO mode by remote control, operation starts in the optimum
mode from among the Heating, Cooling, Dry and Monitoring modes.
During operation, the optimum mode is automatically switched in accordance with temperature changes.
The temperature can be set between 18°C and 30°C in 1°C steps.
NO
<Ts- 2°C ?
YES
YES
NO
NO
NO
NO
YES
YES
HEATING OPERATION COOLING OPERATION
>Ts+2°C ?
Room temp.
Room temp.
When air conditioner is set to AUTO mode by remote control,
operation starts in the optimum mode from among heating,
cooling, dry and monitoring modes.
During operation, the optimum mode is automatically switched
in accordance with temperature changes.
Temperature can be set between 18°C and 30°C in 1°C steps.

3. INDOOR FAN CONTROL
01-06
1. FAN SPEED
Indoor fan speed is defined as below.
Fan motor
MFD-12CYBL
Operation mode Air flow mode ASYG09/12KMCB ASYG14KMCB
Speed
Cooling/ Fan
Hi
Powerful
Powerful
Hi
Me+
Me
Me
Heating
Lo
Lo
Quiet
Quiet
Dry
S-Lo
Cool air prevention
1,380 rpm
600 rpm
680 rpm
930 rpm
1,160 rpm
1,320 rpm
1,380 rpm
480 rpm
600 rpm
710 rpm
980 rpm
1,160 rpm
1,280 rpm
1,320 rpm
X zone: 680 rpm
J zone: 660 rpm
1,420 rpm
670 rpm
750 rpm
990 rpm
1,220 rpm
1,360 rpm
1,420 rpm
480 rpm
600 rpm
770 rpm
1,040 rpm
1,220 rpm
1,330 rpm
1,360 rpm
X zone: 750 rpm
J zone: 730 rpm
* Soft Quiet
*Note
During Economy operation and operation mode is Fan,
air flow is 1 step downs.
(Hi > Me, Me > Lo, Lo > Quiet, Quiet > Soft Quiet)

01-07
Airflow can be switched in 5 steps such as Auto, Quiet, Lo, Me, Hi,
while indoor unit fan only runs.
When fan mode is set at (Auto), it operates on (Me) fan speed.
2. FAN OPERATION
3. COOLING OPERATION
Switch the airflow [Auto], and indoor fan motor will run
according to room temperature, as below.
On the other hand, if switched in [Hi] ~ [Quiet],
indoor motor will run at a constant airflow of [Cool]
operation modes Quiet, Lo, Me, Hi, as the previous page.
Fig : Airflow changeover (Cooling : Auto)
When room
temperature rises
When room
temperature drops TR : Room temperature
Ts : Setting temperature
TR-Ts ≥2°C
1°C > TR-Ts
2°C > TR-Ts ≥1°C
TR-Ts ≥2.5°C
1.5°C > TR-Ts
2.5°C > TR-Ts ≥1.5°C
Hi mode
Me mode
Lo mode
4. DRY OPERATION
As the table in the previous page,
during dry operation, fan speed setting can not be changed.

The maximum value of the indoor fan speed is set as shown in Fig. based on the detected
temperature by the indoor heat-exchanger sensor on heating mode.
Fig : Cool air prevension control
01-08
6. COOL AIR PREVENTION CONTROL (HEATING MODE)
42°C
30°C
34°C
Indoor heat exchanger
temperature rises Indoor heat exchanger
temperature drops
Hi
Me+
Lo
Cool air
prevention
39°C
37°C
37°C
32°C
28°C
S-Lo
42°C
30°C
34°C
Indoor heat exchanger
temperature rises Indoor heat exchanger
temperature drops
Powerful
Hi
Lo
Cool air
prevention
39°C
37°C
37°C
32°C
28°C
S-Lo
<Normal operation> <Powerful operation>
5. HEATING OPERATION
Switch the airflow [AUTO], and the indoor fan motor will run according to a room temperature,
as below.
On the other hand, if switched in [Hi] ~ [Quiet], the indoor motor will run at a constant airflow
of [Heat] operation modes Quiet, Lo, Me, Hi, as the previous page.
Fig : Airflow changeover (Heating : Auto)
TR-Ts ≥-1.5°C
-2.5°C > TR-Ts
-1.5°C > TR-Ts ≥-2.5°C
TR-Ts ≥-1°C
-2°C > TR-Ts
-1°C > TR-Ts ≥-2°C
When the room
temperature rises
When the room
temperature drops
TR : Room temperature
Ts : Setting temperature
Lo mode
Me mode
Me+ mode

01-09
Switch the airflow [Auto] at cooling mode, and the indoor fan motor will run as shown in Fig.
When the defrost operation starts, the indoor fan runs according to cool air preventtion control for 20 seconds.
And the fan is stopped if 20 seconds have passed.
When 60 seconds have passed after defrost operation is released,
the fan runs according to cool air preventtion control
7. MOISTURE RETURN PREVENTION CONTROL (COOLING AND DRY MODE)
9. DEFROST OPERATION
Switch the airflow at cooling mode, and the indoor fan motor will run as shown in the above Fig.
It depends on the Function setting "Indoor unit fan control for energy saving".
8. CONTROL FOR ENERGY SAVING (COOLING MODE)
Fig. : Indoor fan control
Compressor
ON
OFF
Indoor fan
Setting air flow
Indoor fan
(as shown in the table)
S-Lo
OFF
10 30 60 180 60 180 60 10 30
(sec)
Table : Indoor fan speed
X zone J zone
ASYG09/12KMCB 680rpm 660rpm 680rpm
ASYG14KMCB 750rpm 730rpm 750rpm
Dry Cooling

4. OUTDOOR FAN CONTROL
01-10
1. OUTDOOR FAN MOTOR
2. FAN SPEED IN COOLING AND DRY OPERATION
In cooling and dry operation, fan speed is defined
by outdoor temperature and compressor frequency.
This outdoor unit has a DC fan motor.
(Control method is different between AC and DC motors.)
When fan motor starts to run,
it keeps 500 rpm for 20 seconds.
Fan motor
MFE-S60VB2F
Cooling
Z zone
Cool, Dry
F zone
Cool, Dry
G zone
Cool, Dry
Y zone
Fan
step
9
8
7
6
5
Dry
Outside air temperature zone selection
21°C
10°C
Outside air
temperature rises Outside air
temperature drops
Z zone
Y zone
F zone
G zone
12°C
2°C
19°C
0°C
4
3
2
1
630 rpm630 rpm
510 rpm510 rpm
400 rpm400 rpm
400 rpm400 rpm
870 rpm870 rpm
770 rpm770 rpm
1,050 rpm1,050 rpm
1,050 rpm1,050 rpm
1,030 rpm
630 rpm
510 rpm
400 rpm
400 rpm
870 rpm
770 rpm
1,050 rpm
1,050 rpm
1,030 rpm
630 rpm
510 rpm
400 rpm
400 rpm
870 rpm
770 rpm
1,050 rpm
1,050 rpm
1,030 rpm
630 rpm
510 rpm
400 rpm
400 rpm
870 rpm
770 rpm
1,050 rpm
1,050 rpm
S-Hi1
Hi -1,050 rpm
-1,050 rpm
-
-
-
-
-
-
1,030 rpm1,030 rpm

01-11
3. FAN SPEED IN HEATING OPERATION
In heating operation, fan speed is
defined by compressor frequency.
S-Hi1
Hi
Fan step
S-Hi2
10
9
8
7
6
5510 rpm
1,100 rpm
670 rpm
1,100 rpm
Fan speed
1,100 rpm
850 rpm
760 rpm
1,100 rpm
1,100 rpm
4
3
2
1420 rpm
420 rpm
470 rpm
420 rpm

5. LOUVER CONTROL
1. VERTICAL LOUVER CONTROL
Whenever button is pressed, air direction will change as below.
01-12
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
Fig. : Air direction range
Remote control display is not changed.
Use the air direction adjustments within the ranges shown above.
When you set the angle to position 4.7 for more than 30 minutes in cooling or dry operation,
they automaticaly returnto position 3.
In cooling or dry operation, when the angle is set to position 4.7 for many hours,
condensation may be formed, and the drips may wet your property.
During AUTO or Heating mode operation, for the first a few minutes after beginning operation,
air-flow will be horizontal 1; the air direction cannot be adjusted during this period.
The air flow direction setting will temporarily become 1 when the temperature of the air -flow is
low at the start of the Heating mode.
1
2
3
4567

2. SWING OPERATION
01-13
When swing signal is received from remote control,
vertical louver starts to swing.
Table : Swinging range
Cooling / Dry mode
Fan mode ( )
Range
Heating mode
Fan mode ( )
The SWING operation may stop temporarily when the air conditioner’s fan is not operating,
or when operating at very low speeds.
3. ADJUST RIGHT-LEFT LOUVERS
You can move right-left louvers
manually to adjust air flow direction.
Right-left louvers
Knob

6. TIMER OPERATION CONTROL
1. OPERATION FREQUENCY RANGE
OFF timer :
When clock reaches set time,
air conditioner will be turned off.
Operation mode
Wireless remote control
Stop mode
Set time of timer
ON timer :
When clock reaches set time,
air conditioner will be turned on.
Operation mode
Stop mode
Set time of timer
Program timer allows 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.
2. PROGRAM TIMER
Stop mode Stop mode Stop mode
Operation mode Operation mode
Set time Set time Set time Set time
01-14
6-1 WIRELESS REMOTE CONTROL

3. SLEEP TIMER
When sleep is set, room temperature is monitored and operation is stopped automatically.
When operation mode or set temperature is changed after the sleep timer is set,
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 cooling operation
When sleep timer is set, the set temperature is increased 1°C.
It increases the setting temperature another 1°C after 1 hour.
After that, the set temperature is not changed and the operation
is stopped at the time of timer setting.
Ts
+1°C
+2°C
Set 60min
In heating operation
When the sleep timer is set, the set temperature is decreased 1°C.
It decreases the set temperature another 1°C every 30 minutes.
Upon lowering 4°C, the set temperature is not changed and the operation
stops at the time of timer setting.
-4°C
-3°C
-2°C
-1°C
Set 30min 30min 30min
01-15

7. DEFROST OPERATION CONTROL
01-16
1. CONDITION OF STARTING DEFROST OPERATION
Defrost operation starts when outdoor heat-exchanger temperature sensor (Tn) detects
the temperature lower than the values shown below.
2. CONDITION OF DEFROST OPERATION COMPLETION
Defrost operation is released when outdoor
heat-exchanger temperature sensor value is higher than 16°C
or compressor operation time has passed 15 minutes.
1st time defrosting after starting operation
2nd time and after
Compressor
integrating
operation time
Compressor
integrating
operation time
Less than 22 min. 22 to 62 min.
Ta : Outdoor temperature
More than 62 min.
(Does not operate)Condition
Condition
Compressor
integrating
operation time
Condition
Tn ≤-9°C
and Tn - Ta ≥5deg Tn ≤ -5°C
Less than 40 min. More than 40min.
Integrating defrost (Constant monitoring)
More than 240 min.
(For long continuous
operation)
Less than 10min.*1
(For intermittent operation)
- 3°C
More than 213 min.
(For long continuous
operation)
- 5°C OFF count of the compressor
40 times.
*1 : If the compressor continuous operation time is less than 10 minutes,
the OFF number of the compressor is counted.
If any defrost operated, the compressor OFF count is cleared.
Tn10 : Temperature of continuous operation at 10minutes.
Tnb : Back 5minutes temperature
(Does not operate) Tn ≤-17°C
When Ta ≥-10°C
When Ta < -10°C
1 Tn ≤-20°C
2 Tn ≤Ta - 7°C
3 Tn-Tn10< -5°C (and Tn ≤-6°C)
4 Tn-Tnb< -2°C (and Tn ≤-6°C)

01-17
3. DEFROST FLOWCHART
1 Outdoor fan : OFF
2 Compressor speed : 0 rps
3 EEV : 480pulse
4 4-way valve : OFF
5 Compressor speed : 90rps
The defrosting shall proceed by the integrating operation time, outdoor temperature
and outdoor heat exchanger temperature as follows.
(Not defrosted for 10 minutes)
Heating operation start : Compressor ON
Outdoor heat exchanger temperature:
Over +16°C
or
Compressor ON time: Maximum 15 minutes
Defrost end
Compressor
integrating
operation:
Over 22 min.
Outdoor
heat exchanger
temperature:
Below - 9°C
and Tn-Ta≥5°C
Outdoor
heat exchanger
temperature:
Below - 5°C
Compressor
integrating
operation:
Over 40 min.
2nd and later defrost Integrating defrost
(Constant monitoring)
Defrost Indicator:
[Operation lamp]
7 sec ON / 2 sec OFF
Defrost start
Compressor
OFF count :
40 times
(Less than 10min.)
1st defrost
Compressor
integrating
operation:
Over 62 min.
Compressor
integrating
operation:
Over 240 min.
Outdoor
heat exchanger
temperature:
Below - 3°C
Compressor
integrating
operation:
Over 213 min.
Outdoor
heat exchanger
temperature:
Below - 5°C
Outdoor heat exchanger temp.
≤-17°C
.outside temp. > -10°C
.outside temp. < -10°C
1 Outdoor heat exchanger temp.
≤-20°C
2 Outdoor heat exchanger temp.
≤Outside air temp -7°C.
3 Tn-Tn10< -5°C (and Tn≤-6°C)
4 Tn-Tnb< -2°C (and Tn ≤-6°C)
=