Fujitsu AG * V09LAC Series, AG * V12LAC Series, AG * V14LAC Series Service Instruction
SPLIT TYPE
ROOM AIR CONDITIONER
FLOOR
type
Models Indoor unit Outdoor unit
AG * V09LAC
AG * V12LAC
AG * V14LAC
AO * V09LAC
AO * V12LAC
AO * V14LAC
INVERTER
SERVICE
INSTRUCTION
R410A
CONTENTS
1. SPECIFICATION
AG*V09/ 12LAC, AO*V09/ 12LAC...................................................................................
2. DIMENSIONS
AG*V09/ 12/ 14LAC, AO*V09/ 12/ 14LAC.......................................................................
AG*V14LAC, AO*V14LAC...............................................................................................
3. REFRIGERANT SYSTEM DIAGRAM
AG*V09/ 12/ 14LAC, AO*V09/ 12/ 14LAC.......................................................................
4. CIRCUIT DIAGRAM
AG*V09/ 12LAC, AO*V09/ 12LAC...................................................................................
AG*V14LAC, AO*V14LAC...............................................................................................
5. DESCRIPTION OF EACH CONTROL OPERATION
1. COOLING OPERATION..............................................................................................
3. DRY OPERATION......................................................................................................
2. HEATING OPERATION..............................................................................................
5. INDOOR FAN CONTROL...........................................................................................
4. AUTO CHANGEOVER OPERATION.........................................................................
7. LOUVER CONTROL...................................................................................................
6. OUTDOOR FAN CONTROL.......................................................................................
9. TIMER OPERATION CONTROL................................................................................
8. COMPRESSOR CONTROL........................................................................................
11. TEST OPERATION CONTROL..................................................................................
10. ELECTRONIC EXPANSION VALVE CONTROL........................................................
13. FOUR-WAY VALVE EXTENSION SELECT...............................................................
12. PREVENT TO RESTART FOR 3 MINUTES ( 3 MINUTES ST )................................
15. MANUAL AUTO OPERATION ( Indoor unit body operation ).....................................
14. AUTO RESTART........................................................................................................
16. FORCED COOLING OPERATION............................................................................
18. COIL DRY OPEARTION CONTROL..........................................................................
17. COMPRESSOR PREHEATING..................................................................................
19. DEFROST OPERATION CONTROL..........................................................................
21. AIR OUTLET SELECTION (DAMPER CONTROL)....................................................
20. OFF DEFROST OPERATION CONTROL..................................................................
01-01
02-01
02-02
03-01
04-01
04-02
05-01
05-02
05-03
05-04
05-05
05-07
05-08
05-09
05-10
05-12
05-12
05-12
05-12
05-13
05-13
05-13
05-13
05-14
05-16
05-17
22. 10°C HEAT OPERATION........................................................................................... 05-18
23. VARIOUS PROTECTIONS......................................................................................... 05-19
05-12
6. REFRIGERANT CAUTION -R410A-
1. R410A TOOLS............................................................................................................
3. PRECAUTION FOR SERVICING...............................................................................
2. PRECAUTION FOR INSTALLATION.........................................................................
5. DEFFERENCE FROM CONVENTIONAL MODEL(R22) AND PRECAUTIONS........
4. NEW REFRIGERANT R410A.....................................................................................
7. TROUBLE SHOOTING
1. WHEN THE UNIT DOES NOT OPERATE AT ALL....................................................
2. SELF DIAGNOSIS FUNCTION..................................................................................
1. DISASSEMBLY ILLUSTRATION & PARTS LIST......................................................
2. DISASSEMBLY PROCESS ......................................................................................
8. APPENDING DATA
1. JUMPER SETTING OF INDOOR UNIT AND OUTDOOR UNIT................................
3. THERMISTOR RESISTANCE VALUES.....................................................................
2. OUTDOOR UNIT PRESSURE VALUE AND TOTAL ELECTRIC
CURRENT CURVE...................................................................................................
9. REPLACEMENT PARTS
10. INSTALLATION MANUAL
3. SELF-DIAGNOSIS FUNCTION AND CHECKING POINTS.......................................
4. SERIAL SIGNAL DIAGNOSIS....................................................................................
5. IPM PROTECTION.....................................................................................................
6. TROUBLE SHOOTING OF REFRIGERANT CYCLE.................................................
06-01
06-02
06-04
06-05
06-08
07-01
07-02
07-03
07-08
07-09
08-01
08-02
08-06
09-01
09-13
07-10
1 . SPECIFICATIONS
R410A
FLOOR type
INVERTER
SPECIFICATIONS
INDOOR UNIT
H x W x D (mm)
H x W x D (mm)
600 x 740 x 200
OUTDOOR UNIT
540 x 790 x 290
578 x 790 x 300
DIMENSIONS
INDOOR UNIT
GROSS / NET(kg)
GROSS / NET(kg)
17 / 14
OUTDOOR UNIT
44 / 4040 / 36
WEIGHT
TYPE
COOL & HEAT INVERTER
INDOOR UNIT
OUTDOOR UNIT
AG*V09LAC
AO*V09LAC
AG*V12LAC
AO*V12LAC
AG*V14LAC
AO*V14LAC
COOLING CAPACITY
(kW) 3.5 (0.9~4.0)
HEATING CAPACITY
(kW)
4.5 (0.9~6.6)
4.2 (0.9~5.0)
5.2 (0.9~8.0)
POWER SOURCE (V) 230
FREQUENCY (Hz)
50
RUNNING CURRENT
COOLING 4.4
(A)
HEATING
5.5
INPUT WATTS
(kW)
COOLING 0.94 (0.25~1.40)
HEATING
1.19 (0.25~2.15)
E.E.R.
COOLING
3.72
COP HEATING
3.78
MOISTURE REMOVAL
1.8
AIR CIRCULATION-Hi (m /hr)
3
C:570 H:600
5.2
6.4
1.14(0.25~1.90)
1.44(0.25~2.95)
3.68
3.61
2.1
C:650 H:650C:570 H:600
C:760 H:680
2.6 (0.9~3.5)
3.5 (0.9~5.5)
2.6
3.8
0.53 (0.25~1.35)
0.79 (0.25~2.10)
4.91
4.43
1.3
FAN MOTOR
TYPE
Hermetic type, 4 pole, 3 phase, DC inverter motor, Rotary
DISCRIMINATION
REFRIGERANT R410A (g) 1,050 1,1501,050
POWER SOURCE (V) 230
HI-SPEED (UP/ LO)
(r.p.m.)
C:1,190/ 1,000
H:1,240/ 1,040
C:1,000/ 850
H:1,040/ 880
C: 820/ 690
H: 840/ 700
C: 660/ 560
H: 660/ 560
C:760 H:760
C:1,190/ 1,000
H:1,240/ 1,040
C:1,000/ 850
H:1,040/ 880
C: 820/ 690
H: 840/ 700
C: 660/ 560
H: 660/ 560
C:820 H:750
C:1,330/ 1,120
H:1,330/ 1,120
C:1,100/ 930
H:1,100/ 930
C: 890/ 750
H: 860/ 730
C: 660/ 560
H: 660/ 560
INDOOR
UNIT
MED-SPEED (UP/ LO)
LO-SPEED (UP/ LO)
QUIET (UP/ LO)
OUTDOOR UNIT
ELECTRICAL DATA
COMPRESSOR
( /hr)
(kW/kW)
(kW/kW)
01-01
(dB)
(dB)
HI-SPEED
MED-SPEED
INDOOR UNIT
LO-SPEED
QUIET
C:40 H:40
C:47 H:48
C:35 H:35
C:22 H:22
C:29 H:29
C:40 H:40
C:48 H:49
C:35 H:35
C:22 H:22
C:29 H:29
C:44 H:43
C:50 H:50
C:38 H:37
C:22 H:22
C:31 H:29
OUTDOOR UNIT
NOISE LEVEL
20 m
15m chargeless, 20g/m (>15m)
Note : Noise was measured in accordance with JIS standards, Japan.
MAX PIPE LENGTH
ADDITIONAL REFRIGERANT
DA89X1C-20FZ DA130A1F-25F
2 . DIMENSIONS
R410A
FLOOR type
INVERTER
DIMENSIONS
Models : AG*V09LAC / AO*V09LAC
AG*V12LAC / AO*V12LAC
02-01
(unit : mm)
540
740 200
790
56
290
353
17
600
DIMENSIONS
Models : AG*V14LAC / AO*V14LAC
02-02
347
578
48
10
320
508
540
20
300
125
60
790
(unit : mm)
740 200
600
3 . REFRIGERANT SYSTEM DIAGRAM
R410A
FLOOR type
INVERTER
REFRIGERANT SYSTEM DIAGRAM
2-Way
valve
Strainer
Strainer
3-Way
valve
Muffler
Muffler
4-Way valve
Expansion valve
Heat exchanger
( INDOOR )
Heat exchanger
( OUTDOOR )
(4Pass)
Compressor
Cooling
Heating
AG*V12LAC / AO*V12LAC
AG*V14LAC / AO*V14LAC
Models : AG*V09LAC / AO*V09LAC
03-01
(2Pass)
4 . CIRCUIT DIAGRAM
R410A
FLOOR type
INVERTER
CIRCUIT DIAGRAM
Models : AG*V09LAC / AO*V09LAC
AG*V12LAC / AO*V12LAC
04-01
INDOOR UNIT
OUTDOOR UNIT
CIRCUIT DIAGRAM
Models : AG*V14LAC / AO*V14LAC
04-02
INDOOR UNIT
OUTDOOR UNIT
5 . DESCRIPTION OF EACH
CONTROL OPERATION
R410A
FLOOR type
INVERTER
( Fig. 1 : Limit of Maximum Frequency based on Outdoor Temperature )
1. COOLING OPERATION
1-1 COOLING CAPACITY CONTROL
A sensor (room temperature thermistor) built in the indoor unit body will usually perceive
difference or variation between a set temperature and present room temperature, and
controls the operation frequency of the compressor.
* If the room temperature is 2°C higher than a set temperature, the compressor operation
frequency will attain to maximum performance.
minimum
frequency
air flow
maximum
frequency
maximum
frequency
Outside air Outside air
temperature temperature
36°C
A zone
34°C
32°C
B zone
30°C
21°C
C zone
19°C
D zone
( Table 1 : Compressor Frequency Range )
When the compressor operates for 30 minutes continuously at over the maximum frequency ,
the maximum frequency is changed from Maximum Frequency to Maximum Frequency .
05-01
E zone
F zone
10°C
0°C
12°C
2°C
AG*V09LAC
18Hz
18Hz
18Hz
80Hz 96Hz
70Hz 90Hz
58Hz 90Hz
AG*V12LAC
AG*V14LAC
Hi Me Lo Quiet
A zone
96Hz 61Hz 51Hz 33Hz
96Hz 61Hz 51Hz 33Hz
51Hz 33Hz
B zone
C zone
96Hz 61Hz
Upper&
Lower
air flow
Upper
air flow
D zone
64Hz 42Hz 36Hz 27Hz
E zone
64Hz 42Hz
36Hz
27Hz
F zone
A zone
B zone
C zone
D zone
E zone
F zone 64Hz
42Hz
36Hz 27Hz
96Hz 61Hz 45Hz 33Hz
96Hz 61Hz 45Hz 33Hz
45Hz 33Hz
96Hz 61Hz
64Hz 36Hz 36Hz 27Hz
64Hz 36Hz
36Hz
27Hz
64Hz
36Hz
36Hz 27Hz
* When the room temperature is between +2°C to -2.5°C of the setting temperature,
the compressor frequency is controlled within the range shown in Table1.
However, the maximum frequency is limited in the range shown in Figure 1 based on the
fan speed mode and the outdoor temperature.
* If the room temperature is 2.5°C lower than a set temperature, the compressor will be
stopped.
Upper & Lower
Upper
Upper & Lower
Upper
AG*V09/ 12LAC
Hi Me Lo Quiet
A zone
90Hz 45Hz 42Hz 30Hz
90Hz 45Hz 42Hz 30Hz
42Hz 30Hz
B zone
C zone
90Hz 45Hz
Upper&
Lower
air flow
Upper
air flow
D zone
58Hz 38Hz 34Hz 24Hz
E zone
58Hz 38Hz
34Hz
24Hz
F zone
A zone
B zone
C zone
D zone
E zone
F zone 58Hz
38Hz
34Hz 24Hz
90Hz 45Hz 34Hz 24Hz
90Hz 45Hz 34Hz 21Hz
34Hz 21Hz
90Hz 45Hz
58Hz 34Hz 30Hz 21Hz
54Hz 34Hz
30Hz
21Hz
54Hz
34Hz
30Hz 21Hz
AG*V14LAC
2. HEATING OPERATION
2-1 HEATING CAPACITY CONTROL
A sensor (room temperature thermistor) built in the indoor unit body will usually perceive
difference or variation between a set temperature and present room temperature, and
controls the operation frequency of the compressor.
* If the room temperature is lower by 3°C than a set temperature, the compressor operation
frequency will attain to maximum performance.
* If the room temperature is higher 2.5°C than a set temperatire, the compressor will be
stopped.
Outside air
temperature
Outside air
temperature
19°C
C zone
17°C
14°C
B zone
12°C
A zone
AA zone
7°C
5°C
* When the room temperature is between +2°C to -3°C of the setting temperature,
the compressor frequency is controlled within the range shown in Table2.
However, the maximum frequency is limited in the range shown in Figure 2 based on the
fan speed mode and the outdoor temperature.
( Table 2 : Compressor Frequency Range )
( Fig.2 : Limit of Maximum Frequency based on Outdoor Temperature )
* The room temperature is controlled 2°C higher than the setting temperature for 60 minutes
after starting the operation.
After 60 minutes, it is controlled based on the normal setting temperature.
05-02
minimum
frequency
air flow
maximum
frequency
AG*V09LAC
18Hz
18Hz
130Hz
119Hz
AG*V12LAC
AG*V14LAC
Hi Me Lo Quiet
130Hz 96Hz 57Hz 45Hz
130Hz 96Hz 64Hz 51Hz
80Hz 68Hz
130Hz 96Hz
Upper&
Lower
air flow
Upper
air flow
130Hz 96Hz 80Hz 68Hz
130Hz 96Hz 48Hz 33Hz
130Hz 96Hz 64Hz 45Hz
80Hz 51Hz
130Hz 96Hz
130Hz 96Hz 80Hz 68Hz
AA zone
A zone
B zone
C zone
AA zone
A zone
B zone
C zone
Upper & Lower
Upper
Upper & Lower
Upper
AG*V09/ 12LAC
Hi Me Lo Quiet
119Hz 90Hz 54Hz 30Hz
119Hz 90Hz 70Hz 38Hz
70Hz 45Hz
119Hz 90Hz
Upper&
Lower
air flow
Upper
air flow
119Hz 90Hz 70Hz 54Hz
119Hz 90Hz 38Hz 30Hz
119Hz 90Hz 42Hz 38Hz
49Hz 38Hz
119Hz 90Hz
119Hz 90Hz 54Hz 45Hz
AA zone
A zone
B zone
C zone
AA zone
A zone
B zone
C zone
AG*V14LAC
3. DRY OPERATION
3-1 INDOOR UNIT CONTROL
The compressor rotation frequency shall change according to the temperature, set temperature,
and room temperature variation which the room temperature sensor of the indoor unit body has
detected as shown in the Fig 3. However, after the compressor is driven, the outdoor unit shall
run at INITIAL frequency as shown in the Table 3 for a minute.
room
temperature
room
temperature
Ts+1.5°C
Ts+0.5°C
Compressor
ON
OFF
Indoor fan
Dry air flow
S-Lo
OFF
Ts- 0.5°C
Ts- 1.5°C
( Table 3 : Compressor frequency )
( Fig.3 : Compressor Control based on Room Temperature )
( Fig.4 : Indoor Fan Control )
05-03
10 30 60 180 60 180 60 10 30
(SEC)
INITIAL
frequency
AG*V09LAC
56Hz
40Hz
AG*V12LAC
AG*V14LAC
AG*V09LAC
AG*V12LAC
AG*V14LAC
X zone
J zone
Y zone
X zone J zone Y zone
A,B,C
33Hz 25Hz 0Hz
25Hz 0Hz
D,E,F
A,B,C
D,E,F
27Hz
21Hz 18Hz 0Hz
air flow
Indoor zone
*Outdoor
zone
Upper
air flow
Upper
air flow
*Refer to Fig.1 for "outdoor zone".
4. AUTO CHANGEOVER OPERATION
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.
.When operation starts, only the indoor upper fan and outdoor fans are operated for 1 minute. After 1 minute,
the room temperature and outside air temperature are sensed and the operation mode is
selected in accordance with the table below.
C zone
32°C
B zone
-10°C
A zone
( Table.4 Operation mode selection table)
Outside air temperature (TO)
Room temperature (TB)
A zone B zone C zone
TB > TS+2°C
Monitoring
Cooling
(automatic dry)
Cooling
(automatic dry)
TS+2°C TB TS - 2°C
Monitoring Monitoring Monitoring
TB TS- 2°C Heating Heating Monitoring
.When COOING was selected at , the air conditioner operates as follow:
The same operation as COOLING OPERATION of item 1 above is performed.
When the room temperature has remained at (set temperature -1°C) for 8 minutes, operation is
automatically switched to DRY and the same operation as DRY OPERATION of item 3 above
is performed.
If the room temperature reaches (set temperature +2°C during DRY operation, operation returns to
COOLING operation.
.When HEATING was selected at , the same operation as HEATING OPERATION of item 2
above 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
<
1
2
3
1
4
1
( Fig.5 : Outside air temperature zone selection )
05-04
5. INDOOR FAN CONTROL
(1).Fan speed
( Table 5 : Indoor Fan Speed )
(2).FAN OPERATION
The airflow can be switched in 5 steps such as AUTO, QUIET, LOW, MED, HIGH, while the indoor
fan only runs.
When Fan mode is set at (Auto), it operates on (MED) Fan Speed.
05-05
AG*V09/ 12LAC
Operation mode
Air flow mode
Speed (rpm)
Hi 1240/ 1040 1280/ ---
1040/ 880 1080/ ---
660/ 560 680/ ---
840/ 700 870/ -- 660/ 560 680/ -- 660/ 560 680/ -- 660/ 560 680/ --1190/ 1000 1230/ --1000/ 850 1030/ -- 820/ 690 850/ ---
---- / ---- 680/ ---
Me
Lo
Heating
Quiet
Hi
Me
Lo
Quiet
Cool air prevention
S-Lo
Dry
Cooling
Fan
Upper& Lower
air flow mode
Upper
air flow mode
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
AG*V14LAC
Operation mode
Air flow mode
Speed (rpm)
Hi 1330/ 1120 1370/ ---
1100/ 930 1130/ ---
660/ 560 680/ ---
860/ 730 890/ -- 660/ 560 680/ -- 660/ 560 680/ -- 660/ 560 680/ --1330/ 1120 1370/ --1100/ 930 1130/ -- 890/ 750 890/ ---
---- / ----
680/ ---
Me
Lo
Heating
Quiet
Hi
Me
Lo
Quiet
Cool air prevention
S-Lo
Dry
Cooling
Fan
Upper& Lower
air flow mode
Upper
air flow mode
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(3).COOLING OPERATION
Switch the airflow [AUTO], and the (Fig.6)
indoor fan motor will run according airflow change - over ( Cooling:AUTO )
to a room temperature, as shown in When the room
Figure 6. temperature rises
On the other hand, if switched in
[HIGH] [QUIET], the indoor motor
+2.5°C
will run at a constant airflow of [COOL]
operation modes QUIET, LOW, MED,
HIGH, as shown in Table 5. +1.5°C
+1°C
LOW mode
When the room
temperature lowers
(Room temperature) D (Setting temperature)
(4).DRY OPERATION
(5).HEATING OPERATION
Switch the airflow [AUTO], and the (Fig.7)
indoor fan motor will run according airflow change - over ( Heating:AUTO)
to a room temperature, as shown in When the room
Figure 7. temperature rises
On the other hand, if switched
LOW mode
[HIGH] [QUIET], the indoor motor -1°C
will run at a constant airflow of [HEAT]
-1.5°C
operation modes QUIET, LOW, MED,
HIGH, as shown in Table 5. -2°C
-2.5°C
HIGH mode
When the room
temperature lowers
(Room temperature) D (Setting temperature)
(6).COOL AIR PREVENTION CONTROL (Heating mode)
Indoor heat exchanger Indoor heat exchanger
temperature temperature
42°C
Hi
39°C
Me
37°C
Lo
Cool air prevention
30°C
S-Lo
Refer to the table 4.
Durring the dry mode operation, the fan speed
setting can not be changed.
The maximum value of the indoor fan speed is set as shown in Figure 8, based on the detected
temperature by the indoor heat exchanger sensor on heating mode.
(Fig.8 : Cool Air Prevention Control)
05-06
34°C
24°C
29°C
31°C
HIGH mode
MED mode
+2°C
MED mode
6. OUTDOOR FAN CONTROL
Cooling Dry Heating
AG*V09LAC
AG*V12LAC
800/ 760/ 470
860/ 820/ 670/ 500
470/ 250
500/ 280
500 150 (by 1rpm or more)
AG*V14LAC
( Table 6 : Outdoor fan speed )
*
The outdoor fan speed mentioned avobe depends on the compressor frequency.
(When the compressor frequency increases, the outdoor fan speed also changes to the higher
speed. When the compressor frequescy decreases, the outdoor fan speed also changes to the
lower speed.)
*
It runs at 500(A-D ZONE)/200(E,F ZONE) rpm for 20 seconds after starting up the outdoor fan.
*
After the defrost control is operated on the heating mode, the fan speed keeps at the higher speed
as table 7 without relating to the compressor frequency.
05-07
A - C
D
E
F
A - C
D
E
F
ZONE
760/ 470
760/ 470
500
500
760/ 680/ 470
820/ 750/ 670/ 550/ 450
Refer to Fig1.
(rpm)
*
Outdoor temperature falls, and if it becomes E and F zone(Refer to Fig1), rotations of fan speed
will fall.
( Table 7 : Outdoor fan speed after the defrost )
AG*V09/ 12LAC
AG*V14LAC
Min
900rpm
950rpm
(1). Fan Speed
470 150 (by 1rpm or more)
300 150 (by 1rpm or more)
300 150 (by 1rpm or more)
7. LOUVER CONTROL
(1). VERTICAL LOUVER CONTROL
Each time the button is pressed,
the air direction range will change as follows:
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 Monitor operation in AUTO CHANGEOVER mode, the airflow direction automatically
becomes , and it cannot be adjusted.
(Function and Operation Range)
(Fig 9: Air Direction 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 interrrupted
and the louver stops at the memorized position.
05-08
8. COMPRESSOR CONTROL
(1). OPEARTION FREQUENCY RANGE
The operation frequency of the compressor is different based on the operation mode as
shown in the table 8.
Cooling Heating
Min Max Min Max
Dry
AG*V09/ 12LAC 18Hz 96Hz 18Hz 130Hz 33Hz
AG*V14LAC 18Hz 90Hz 18Hz 119Hz 24Hz
AG*V09/ 12LAC 56Hz 74Hz 87Hz 97Hz 108Hz 119Hz
80sec 60sec 60sec 180sec 60sec 60sec
(Table 8 : Compressor Operation Frequency Range)
(2). OPEARTION FREQUENCY CONTROL AT START UP
The compressor frequency soon after the start-up is controlled as shown in the figure 10.
(Fig.10 : Compressor Control at Start-up)
Time
Time Time Time
Time
Time
(Frequency)
(Time)
Frequency
Frequency
Frequency Frequency
Frequency
Frequency
Time Time
Time Time Time Time
Frequency
Frequency
Frequency
Frequency
Frequency
Frequency
05-09
AG*V14LAC 40Hz 59Hz 72Hz 80Hz 101Hz 110Hz
60sec 40sec 40sec 60sec 150sec 60sec
AG*V09/ 12LAC
AG*V14LAC
9. TIMER OPEARTION CONTROL
(1). OPEARTION FREQUENCY RANGE
The table 9 shows the available timer setting based on the product model.
ON TIMER / OFF TIMER PROGRAM TIMER SLEEP TIMER
AG*V09/ 12/ 14LAC
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 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.
(Table 9 : Timer Setting)
(2). PROGRAM TIMER
Stop mode
Stop mode
Stop mode
Operation mode
Operation mode
Set time
Set time Set time Set time
05-10
(3). SLEEP TIMER
If the sleep 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°C.
It increases the setting temperature another 1°C after 1 hour.
After that, the setting temperature is not changed and the operation is stopped at the time
of timer setting.
Ts
+1°C
+2°C
Set
60min
In the heating operation mode
When the sleep timer is set, the setting temperature is decreased 1°C.
It decreases the setting temperature another 1°C every 30 minutes.
Upon lowering 4°C, the setting 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
05-11
10. ELECTRONIC EXPANSION VALVE CONTROL
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, the
indoor heat exchanger sensor, the outdoor heat exchanger sensor, and the outdoor temperature
sensor.
The pulse range of the electronic expansion valve control is between 60 to 480 pulses.
The expansion valve is set at 480 pulses after 110 seconds of stopping compressor.
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).
11. TEST OPERATION CONTROL
Under the condition where the air conditioner runs, press the test operation button of the remote
control, 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 compressor won't enter operation status for 2 minutes and 20 seconds after the compressor is
stopped, even if any operation is given.
At the time when the air conditioner is switched from the cooling mode to heating mode, the
compressor is stopped, and the four-way valve is switched in 2 minutes and 20 seconds later after
the compressor stopped.
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 started with
the memorized operation contents.
When the power is interrupted and recovered during timer operation, since the timer operation time
is shifted by the time the power was interrupted, an alarm is given by blinking (7 sec ON/2 sec OFF)
the indoor unit body timer lamp.
[Operation contents memorized when the power is interrupted]
Operation mode
Set temperature
Set air flow
Timer mode and timer time
Set air flow Direction
Swing
The test operation mode is released if 60 minutes have passed after setting up the test operation.
12. PREVENT TO RESTART FOR 3 MINUTES ( 3 MINUTES ST )
13. FOUR-WAY VALVE EXTENSION SELECT
14. AUTO RESTART
05-12
10°C HEAT
15. MANUAL AUTO OPERATION (Indoor unit body operation)
If MANUAL AUTO Button is set, the operation is controlled as shown in Table 10.
If the remote control is lost or battery power dissipated, this function will work without the remote
control.
OPERATION MODE Auto changeover
FAN CONT. MODE Auto
TIMER MODE Continuous
SETTING TEMP. 24°C
SETTING LOUVER Standard
SWING OFF
When the outdoor heat exchanger temperature is lower than temperature and the heating operation has
been stopped for 30 minutes, 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 temperature or greater, preheating
is ended.
AG*V09/ 12/ 14LAC
AG*V09/ 12LAC
870 rpm
36Hz
(Table 10)
(No timer setting available)
17. COMPRESSOR PREHEATING
(Table 11 : Preheating Operation / Release Temperature)
Temperature
Temperature
5°C
7°C
18. COIL DRY OPERATION CONTROL
The coil-dry operation functions by pressing COIL DRY button on the remote controller.
The coil-dry operation is consisted of 3 cycles of [Fan operation 3 minutes / Heating operation
2 minutes], and Fan operates for 33 minutes at last before ending the air conditioner operation.
(It takes 48 minutes to complete the coil-dry operation.)
(Table 12 : COIL-DRY Operating Functions)
Indoor Fan Speed
(Upper air flow only)
Compressor
Frequency
Louver
Position
Main Unit
Indication
OPERATION : ON
Other indication : OFF
05-13
Forced cooling operation
Cooling
16. FORCED COOLING OPERATION
Forced cooling operation is started when pressing MANUAL AUTO button for 10 seconds or more.
During the forced cooling operation, it operates regardless of room temperature sensor.
Operation LED and timer LED blink during the forced cooling operation. They blink for 1 second ON
and 1 second OFF on both operation LED and timer LED (same as test operation).
Forced cooling operation is released after 60 minutes of starting operation.
The FORCED COOLING OPERATION will start as shown in Table11.
AG*V14LAC
890 rpm
24Hz
Hi
Horizontal
OFF
Room Temp is not controlled
Manual auto operation
-
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