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.