Fujitsu AB*30LBAG series, AB*36LBAG series, AO*45LJBYL series, AB*45LBAG series, AO*30LMBWL series Service Instruction
...
SPLIT TYPE
ROOM AIR CONDITIONER
Large Ceiling
type
Models Indoor unit Outdoor unit
AB*30LBAG
AB*36LBAG
AB*45LBAG
AO*30LMBWL
AO*36LMBWL
AO*45LJBYL
INVERTER
SERVICE
INSTRUCTION
R410A
CONTENTS
1. SPECIFICATIONS
SPECIFICATIONS.......................................................................................................... 01-01
2. DIMENSIONS
DIMENSIONS.................................................................................................................. 02-01
3. REFRIGERANT SYSTEM DIAGRAM
REFRIGERANT CIRCUIT............................................................................................... 03-01
4. CIRCUIT DIAGRAM
CIRCUIT DIAGRAM........................................................................................................ 04-01
5. DESCRIPTION OF EACH CONTROL OPERATION
5-1-1 COOLING CAPACITY CONTROL......................................................................
5-1 COOLING OPERATION............................................................................................
5-4 AUTO CHANGEOVER OPERATION........................................................................
5-5 INDOOR FAN CONTROL.........................................................................................
5-6 OUTDOOR FAN CONTROL......................................................................................
5-7 LOUVER CONTROL.................................................................................................
05-01
05-01
5-2-1 HEATING CAPACITY CONTROL......................................................................
5-2 HEATING OPERATION.............................................................................................
05-02
05-02
5-3-1 INDOOR UNIT CONTROL.................................................................................
5-3 DRY OPERATION......................................................................................................
05-03
05-03
05-04
05-05
05-07
05-08
5-8 COMPRESSOR CONTROL......................................................................................
05-10
5-9 TIMER OPERATION CONTROL...............................................................................
05-11
5-10 ELECTRONIC EXPANSION VALVE CONTROL....................................................
05-13
5-11 TEST OPERATION CONTROL...............................................................................
05-13
5-12 PREVENT TO START FOR 3 MINUTES (3 MINUTES ST)....................................
05-13
5-13 4-WAY VALVE EXTENSION SELECT....................................................................
05-13
5-14 AUTO RESTART.....................................................................................................
05-13
5-15 PUMP DOWN (Refrigerant collecting operation).................................................
05-14
5-16 COMPRESSOR PREHEATING...............................................................................
05-14
5-17 DEFROST OPERATION CONTROL.......................................................................
05-14
5-19 VARIOUS PROTECTIONS......................................................................................
05-16
5-18 MANUAL AUTO OPERATION................................................................................
05-16
6. REFRIGERANT CAUTION -R410A-
6-1 R410A TOOLS............................................................................................................ 06-01
6-2 PRECAUTION FOR INSTALLATION.........................................................................
06-02
6-3 PRECAUTION FOR SERVICING...............................................................................
06-04
6-4 NEW REFRIGERANT R410A.....................................................................................
06-05
6-5 DEFFERENCE FROM CONVENTIONAL MODEL (R22) AND PRECAUTIONS.......
06-08
8. APPENDING DATA
9. INSTALLATION MANUAL
8-1 CAPACITY TABLE..................................................................................................... 08-01
8-2 OPERATION RANGE.................................................................................................
08-02
8-3 ELECTRIC CHARACTERISTICS...............................................................................
08-03
8-4 SAFETY DEVICE........................................................................................................
08-04
8-5 FUNCTION SETTING.................................................................................................
08-05
7-1-2 OUTDOOR UNIT DISPLAY................................................................................
7-1-1 INDOOR UNIT DISPLAY....................................................................................
7-1 ERROR DISPLAY......................................................................................................
7. TROUBLE SHOOTING
7-2 TROUBLE SHOOTING WITH ERROR CODE..........................................................
7-3 TROUBLE SHOOTING WITH NO ERROR CODE....................................................
7-4 SERVICE PARTS INFORMATION............................................................................
07-01
07-01
8-5-1 INDOOR UNIT....................................................................................................
08-05
8-5-2 OUTDOOR UNIT (AO*30/ 36LMBWL)................................................................
08-07
8-5-3 OUTDOOR UNIT (AO*45LJBYL)........................................................................
08-09
07-02
07-21
07-03
07-26
1-1-1 PARTS LAYOUT DRAWING...............................................................................
1-1-2 WIRING................................................................................................................
1-1-3 DISASSEMBLY PROCESS.................................................................................
1-1 For AO*30/ 36LMBWL.............................................................................................
1 REPLACEMENT PARTS ( For OUTDOOR UNIT ).......................................................
10. REPLACEMENT PARTS
10-01
10-01
10-01
10-04
10-03
2-1 PARTS LAYOUT DRAWING...................................................................................
2 REPLACEMENT PARTS ( For INDOOR UNIT )........................................................... 10-29
10-29
1-1-4 ASSEMBLY PROCESS of INVERTER UNIT.......................................................
10-09
1-2-1 PARTS LAYOUT DRAWING...............................................................................
1-2-2 WIRING................................................................................................................
1-2-3 DISASSEMBLY PROCESS.................................................................................
1-2-4 ASSEMBLY PROCESS of INVERTER UNIT......................................................
1-2 For AO*45LJBYL.....................................................................................................
10-14
10-14
10-18
10-16
10-24
1 . SPECIFICATIONS
R410A
INVERTER
Large Ceiling type
01-01
1. SPECIFICATIONS
AB 30LBAG AB 36LBAG
AO 30LMBW L AO 36LMBW L
EUROPEAN ENERGY LABEL COOLING C E
kW 8.50/10.00 10.0/11.20
BTU/h 29000/34100 34100/38200
kW 10.00/11.20 10.8/12.77
BTU/h 34100/38200 36900/43600
COOLING RATED/MAX 3.00/3.45 4.12/4.35
HEATING RATED/MAX 2.90/3.50 3.26/4.15
COOLING RATED/MAX 13.1/15.2 18.0/18.4
HEATING RATED/MAX 12.7/15.3 14.2/18.8
A 10 10
EER COOLING 2.83 2.43
COP HEATING 3.45 3.31
l/h (pints/h) 2.5 ( 5.3 ) 3.0 ( 6.3 )
High 1660 / 1660 1850 / 1850
Med 1500 / 1450 1660 / 1500
Low 1270 / 1150 1430 / 1270
Quiet
High
Low
High 1000 / 1000 1100 / 1100
Med 900 / 850 1000 / 900
Low 750 / 650 850 / 750
Quiet
High
Low
INDOOR
OUTDOOR
INDOOR
OUTDOOR
High 45.0 / 45.0 48.0 / 48.0
Med 42.0 / 42.0 45.0 / 45.0
Low 37.0 / 37.0 41.0 / 41.0
53.0 / 55.0 54.0 / 55.0
OUTPUT W
Rows × Stages
Fin Pitch
Coil Dimensions
Rows × Stages
Fin Pitch
Coil Dimensions
INDOOR
OUTDOOR
INDOOR
OUTDOOR
INDOOR
OUTDOOR
INDOOR
OUTDOOR
LIQUID
GAS
m
m
CHARGE g
COOLING
HEATING
mm
Note: Specifications are based on the following conditions.
Cooling: Indoor temperature of 27 °CDB / 19 °CWB,and outdoor temperature of 35 °CDB/24 °CWB.
Heating: Indoor temperature of 20 °CDB / 15 °CWB,and outdoor temperature of 7 °CDB/6 °CWB.
Pipe length : 7.5 m, Height difference : 0 m.(Outdoor unit - Indoor unit)
CEILING MODELS
INVERTER HEAT PUMP
230V 50Hz
STARTING METHOD
FAN TYPE x Q'ty
FAN MOTOR OUTPUT
W
COMPRESSOR
TYPE
FAN SPEED
COOL/HEAT
DRAIN PIPE
kg(lbs)
MATERIAL
SIZE
CONNECTION METHOD
SIZE
mm
WEIGHT
NET /
GROSS
MAX HEIGHT
HEAT
EXCHANGER
TYPE
INDOOR
Coil
OUTDOOR
Coil
Fin
mm
mm
PIPE
REFRIGERANT
REMOTE CONTROLLER TYPE
OPERATION(OUTDOOR)
°C
REFRIGERANT OIL
TYPE
TYPE
MAX LENGTH
CASING COLOR
DIMENSIONS
H × W × D
NET
dB(A)
OUTDOOR
mm
GROSS
NOISE LEVEL
(SOUND
PRESSURE)
COOL/HEAT
INDOOR
Fin
INDOOR
r.p.m
OUTDOOR
STARTING CURRENT
kW/kW
MOISTURE REMOVAL
AIR
CIRCULATION
COOL/HEAT
INDOOR
m3/h
OUTDOOR
INPUT POWER
kW
CURRENT
A
POWER SOURCE
AVAILABLE VOLTAGE RANGE
CAPACITY
COOLING
RATED/MAX
HEATING
RATED/MAX
TYPE
MODEL NAME
INDOOR
OUTDOOR
-
198-264V 50Hz
-
3600 / 3800
-
850 / 900
-
SIROCCO × 4
PROPELLER × 1
160
103
DC TWIN ROTARY (INVERTER)
1300
Inverter
Copper tube
Aluminium
3 × 12
1.45
252 × 1350 × 39.9
Copper tube
Aluminium
2 × 38
1.3
798 × 900 × 36.38
White (5Y9/0.5NN)
Beige (10YR7.5/1.0NN)
240 × 1660 × 700
830 × 900 × 330
318 × 1800 × 790
970 × 1050 × 445
48 / 61 ( 106 / 134 )
64 / 70 ( 141 / 154 )
FLARE
9.52 ( 3 / 8 inc.)
15.88 ( 5 / 8 inc.)
50 (chargeless:15)
30
R410A
2200
ABS
Outer diameter 25.6 / Inner diameter 22.0
POE
-10 to 43
-10 to 24
WIRELESS
01-02
CEILING MODELS
INVERTER HEAT PUMP TYPE
AB 45LBAG
AO 45LJBYL
230V 50Hz
198-264V 50Hz
kW 12.5/14.0
BTU/h 42700/47800
kW 14.0/16.0
BTU/h 47800/54600
COOLING RATED/MAX 4.45/5.15
HEATING RATED/MAX 4.25/4.60
COOLING RATED/MAX 19.5/22.6
HEATING RATED/MAX 18.5/20.0
A 15
COOLING 2.81
HEATING 3.29
l/h (pints/h) 4.0(8.5)
High 2000/2000
Med 1850/1850
Low 1590/1590
Quiet -
High 6600/6600
Low -
High 1200/1200
Med 1100/1100
Low 950/950
Quiet -
High Upper fan : 850 , Lower fan : 750
Low -
INDOOR Sirocco × 4
OUTDOOR Propeller × 2
INDOOR 160
OUTDOOR 103 × 2
High 50/50
Med 47/47
Low 43/43
52/53
DC SCROLL(INVERTER)
OUTPUT W 2500
Inverter
Copper tube
Aluminium
3 × 12
Fin Pitch
1.45
Coil Dimensions
252 × 1350 × 39.9
Copper tube
Aluminium
2 × 60
Fin Pitch
1.3
Coil Dimensions
1260 × 900 × 36.38
INDOOR White(5Y9/0.5NN)
OUTDOOR Beige(10YR7.5/1.0NN)
INDOOR 240 × 1660 × 700
OUTDOOR 1290 × 900 × 330
INDOOR 318 × 1800 × 790
OUTDOOR 1430 × 1050 × 445
INDOOR 48/61 (106/134)
OUTDOOR 105/112 (231/247)
FLARE
LIQUID
9.52(3/8 inc.)
GAS
15.88(5/8 inc.)
m 70 (chargeless:20)
m 30
R410A
CHARGE g 3400
POE
COOLING
-15 to 43
HEATING
-15 to 24
WIRELESS
ABS
mm
Outer diameter 25.6 / Inner diameter 22.0
Note:
Specifications are based on the following conditions.
Cooling: Indoor temperature of 27 °CDB / 19 °CWB,and outdoor temperature of 35 °CDB/24 °CWB.
Heating: Indoor temperature of 20 °CDB / 15 °CWB,and outdoor temperature of 7 °CDB/6 °CW B.
Pipe length : 7.5 m, Height difference : 0 m.(Outdoor unit - Indoor unit)
DRAIN PIPE
MATERIAL
SIZE
WEIGHT
AIR
CIRCULATION
COOL/HEAT
m3/h
dB(A)
INDOOR
OUTDOOR
r.p.m
COMPRESSOR
FAN TYPE x Q'ty
Rows x Stages
PIPE
SIZE
mm
CONNECTION METHOD
MAX HEIGHT
MAX LENGTH
OUTDOOR
FAN MOTOR OUTPUT
W
STARTING METHOD
FAN SPEED
COOL/HEAT
NOISE LEVEL
(SOUND
PRESSURE)
COOL/HEAT
OUTDOOR
INDOOR
Coil
CURRENT
MOISTURE REMOVAL
INDOOR
TYPE
INDOOR
kW/kW
A
EER
COP
STARTING CURRENT
INDOOR
OUTDOOR
HEATING
kW
INPUT POWER
TYPE
MODEL NAME
POWER SOURCE
COOLING
RATED/MAX
AVAILABLE VOLTAGE RANGE
CAPACITY
RATED/MAX
DIMENSIONS
H × W × D
OUTDOOR
Coil
Fin
HEAT
EXCHANGER
TYPE
Fin
mm
Rows x Stages
mm
CASING COLOR
NET
GROSS
mm
kg(lbs)
NET /
GROSS
REMOTE CONTROLLER TYPE
TYPE
REFRIGERANT OIL
REFRIGERANT
TYPE
OPERATION(OUTDOOR)
°C
2 . DIMENSIONS
R410A
INVERTER
Large Ceiling type
02-01
MODEL : AB*30/ 36LBAG
MODEL : AO*30/ 36LMBWL
(Unit : mm)
900
830
99
196
21
9
77
31 330
400
170
147
12
Top view
Front view
Side view
2. DIMENSIONS
Rear view
Side view
Bottom view
(Unit : mm)
30 30
Suspension bolt pitch
1,600
INDOOR UNIT (TOP VIEW)
10
155
300
INDOOR UNIT
Suspension bolt
should extend
outward 30 to 75.
Refrigerant piping
flare connection (Gas)
Refrigerant piping
flare connection (Liquid)
Drain piping connection
(Drain pipe : I.D. 22 O.D. 25.6)
Knock out hole for fresh air
Knock out hole for refrigerant piping
Hole for lifting bolt
(Use M10 screw bolt)
02-02
MODEL : AB*45LBAG
MODEL : AO*45LJBYL
(Unit : mm)
900
1290
77 31
21
9
400
151
99
196
170
12
330
Top view
Side view
Front view
Rear view
Side view
Bottom view
(Unit : mm)
30 30
Suspension bolt pitch
1,600
INDOOR UNIT (TOP VIEW)
10
155
300
INDOOR UNIT
Suspension bolt
should extend
outward 30 to 75.
Refrigerant piping
flare connection (Gas)
Refrigerant piping
flare connection (Liquid)
Drain piping connection
(Drain pipe : I.D. 22 O.D. 25.6)
Knock out hole for fresh air
Knock out hole for refrigerant piping
Hole for lifting bolt
(Use M10 screw bolt)
3 . REFRIGERANT SYSTEM DIAGRAM
R410A
INVERTER
Large Ceiling type
03-01
Ø15.88mm(5/8")
Ø9.52mm(3/8")
MODEL : AB*30/ 36LBAG / AO*30/ 36LMBWL
Outdoor Unit Indoor Unit
CONDENSER
HIGH PRESSURE
SWITCH
PRESSURE
CHECK VALVE
THO
THO
THC
THPO
THD
THR
THR
THPI
THPI
THD
THC
THPO
COMPRESSOR
ACCUMULATOR
EXPANSION
VALVE
STRAINERSTRAINER
4-Way
valve
THERMISTOR(DISCHARGE TEMP.)
THERMISTOR(ROOM TEMP.)
THERMISTOR(PIPE TEMP.)
THERMISTOR(OUTDOOR TEMP.)
THERMISTOR(PIPE TEMP.)
THERMISTOR(COMP TOP TEMP.)
Refrigerant Pipe
Refrigerant Pipe
COOL
HEAT
EVAPOLATOR
Charging Valve
Charging Valve
3. REFRIGERANT CIRCUIT
03-02
Ø15.88mm(5/8")
Ø9.52mm(3/8")
MODEL : AB*45LBAG / AO*45LJBYL
Outdoor Unit Indoor Unit
CONDENSER
HIGH PRESSURE
SWITCH
PRESSURE
CHECK VALVE
THO
THO
THC
THPO
THD
THR
THPI
THR
THPI
THD
THC
THPO
COMPRESSOR
ACCUMULATOR
EXPANSION
VALVE
STRAINER
STRAINER STRAINER
4-Way
valve
THERMISTOR(DISCHARGE TEMP.)
THERMISTOR(ROOM TEMP.)
THERMISTOR(PIPE TEMP.)
THERMISTOR(OUTDOOR TEMP.)
THERMISTOR(PIPE TEMP.)
THERMISTOR(COMP TOP TEMP.)
Refrigerant Pipe
Refrigerant Pipe
COOL
HEAT
EVAPOLATOR
Charging Valve
Charging Valve
MUFFLER
4 . CIRCUIT DIAGRAM
R410A
INVERTER
Large Ceiling type
04-01
MODEL : AB*30/ 36/ 45LBAG
THERMISTOR(PIPE TEMP.)
THERMISTOR(ROOM TEMP.)
FAN MOTOR
CAPACITOR
FAN MOTOR
STEP MOTOR
(UP / DOWN)
STEP MOTOR
(LEFT / RIGHT)
BROWN
RED
GRAY
GRAY
BLACK
WHITE
WHITE
RED
BLACKBLACK
BLACK
ORANGE
YELLOW
WHITE
BROWN
RED
RED
ORANGE
YELLOW
WHITE
WHITE
BLACK
BLUE
BLUE
PURPLE
PURPLE
GRAY
GRAY
BROWN
RED
ORANGE
YELLOW
WHITE
GREEN
WHITE
WHITE
1
2
3
4
5
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
1
2
1
2
3
4
5
1
2
3
1
2
3
1
2
3
2
1
3
1
2
3
4
5
1
2
3
4
5
1 2
1 2 1 2
3 2 1
1 2
CN4
CN10
CN15CN13CN16CN5
CN11
CN7CN6
CN1
CN201
CN8
CONTROL BOARD
DISPLAY BOARD
N
L
FILTER
BOARD
Use T 3.15A 250V
Fuse on F101
4. CIRCUIT DIAGRAM
TO OUTDOOR UNIT
TERMINAL
3 2 1
04-02
MODEL : AO*30/ 36LMBWL
CN21
U
W305
V
W304
W
W303
CN22 CN23 CN26 CN25
CN37
CN30
CN800
CN27
CN1
CN1
TM102
TM101
CN34
W9
W6W3 W7 W4 W5
W8
CN407
W12
W13
W21
W22
W200
W16
W17
W10
W11
1 2
1 2 3 4 1 2 3
1 2 3
1 2 1 2 1 2 1 2
BLACK
BLACK
WHITE
WHITE
GREEN
1 2(N) 3 L N
TO INDOOR UNIT
TO POWER SUPPLY
1
2
1
2
3
1
2
3
4
5
6
7
1
2
3
4
5
6
1
2
3
4
5
1
2
3
4
5
6
FUSE
F4 T 5A 250V
FUSE
F2 T 3.15A 250V
PRINTED
CIRCUIT
BOARD
(MAIN)
RED
BLACK
BLACK
BROWN
BLUE
BLACK
BROWN
BLACK
BLACK
WHITE
WHITE
YELLOW
YELLOW
BROWN
BROWN
BLUE
ORANGE
RED
RED
RED
RED
BLACK
WHITE
WHITE
BLACK
BLACK
ORANGE
BROWN
RED
REDRED
WHITEWHITE
BLACKBLACK
ORANGE
YELLOW
YELLOW
BLUE
WHITE
BROWN
ORANGE
RED
BLACK
BROWN
RED
4WV
FM
EV
HIGH PRESSURE SW
SOLENOID
COIL
EXPANSION
VALVE COIL
FAN MOTOR
THERMISTOR
(HEAT SINK)
THERMISTOR
(DISCHARGE)
THERMISTOR
(PIPE)
THERMISTOR
(OUTDOOR)
THERMISTOR
(COMPRESSOR)
PRINTED CIRCUIT
BOARD (FILTER)
EARTH
FUSE
10A
FUSE
25A
POSISTOR
TERMINAL
CHOKE
COIL
ACTIVE
FILTER
MODULE
L1
L2
P
N
EMI FILTER
2T
EMI FILTER
1T
CONNECTOR
COMPRESSOR
U
W
V
04-03
MODEL : AO*45LJBYL
CN21
U
W305
V
W304
W
W303
CN22 CN23 CN26 CN25
CN37
CN30
CN800
CN801
CN27
CN1
CN1
TM102
TM101
CN34
W9
W6W3 W7 W1 W2
W8
CN407
W14
W15
W107
W108
W200
1 2
1 2 3 4 1 2 3
1 2 3
1 2 1 2 1 2 1 2
BLACK
BLACK
GRAY
RED
BLACK
GRAY
BLACK
WHITE
WHITE
GREEN
1 2(N) 3 L N
1
2
1
2
3
1
2
3
4
5
6
7
1
2
3
4
5
6
7
1
2
3
4
5
6
1
2
3
4
5
1
2
3
4
5
6
F4 T 5A 250V
F2 T 3.15A 250V
PRINTED
CIRCUIT
BOARD
(MAIN)
RED
BLACK
BLACK
BROWN
BLUE
BLACK
BROWN
BLACK
BLACK
WHITE
WHITE
YELLOW
YELLOW
BROWN
BROWN
BLUE
ORANGE
RED
RED
BLACK
WHITE
YELLOW
BROWN
RED
RED
RED
BLACK
WHITE
WHITE
WHITE
WHITE
BROWN
YELLOW
BLUE
VIOLET
BLACK
ORANGE
BROWN
RED
REDRED
WHITEWHITE
BLACKBLACK
ORANGE
YELLOW
ORANGE
BLACK
BROWN
RED
4WV
FM
FM
EV
HIGH PRESSURE SW
SOLENOID
COIL
EXPANSION
VALVE COIL
FAN MOTOR 1
FAN MOTOR 2
THERMISTOR
(HEAT SINK)
THERMISTOR
(DISCHARGE)
THERMISTOR
(PIPE)
THERMISTOR
(OUTDOOR)
THERMISTOR
(COMPRESSOR)
PRINTED CIRCUIT
BOARD (FILTER)
EARTH
FUSE
10A
POSISTOR
CHOKE
COIL
ACTIVE
FILTER
MODULE
L1
L2
P
N
EMI FILTER
1T
EMI FILTER
2T
EMI FILTER
2T
EMI FILTER
2T
EMI FILTER
3T
EMI FILTER
1T
CONNECTOR
COMPRESSOR
U
W
V
TERMINAL
TERMINAL
DIODE BRIDGE
RELAY
FUSE
TO INDOOR UNIT
TO POWER SUPPLY
5 . DESCRIPTION OF EACH
CONTROL OPERATION
R410A
Large Ceiling type
INVERTER
5-1. COOLING OPERATION
5-1-1 COOLING CAPACITY CONTROL
A sensor (room temperature thermistor) built in the indoor unit 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 degC higher than a set temperature,
the compressor operation frequency will attain to maximum performance.
* If the room temperature is 2 degC lower than a set temperature, the compressor
will be stopped.
* When the room temperature is between +2 degC to -2 degC 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.
minimum
frequency
maximum
frequency
20Hz
20Hz
20Hz
90Hz
90Hz
92Hz
AB*30LBAG
AB*36LBAG
AB*45LBAG
Outdoor air
temperature
A zone
31°C
B zone
C zone
D zone
Hi Me Lo
A zone
90Hz
70Hz
65Hz
55Hz
90Hz
92Hz
72Hz
60Hz
60Hz
75Hz
70Hz
65Hz
45Hz
75Hz
70Hz
65Hz
55Hz
72Hz
60Hz
45Hz
75Hz
70Hz
60Hz
60Hz
53Hz
53Hz
65Hz
70Hz
65Hz
70Hz
55Hz
72Hz
60Hz
65Hz
55Hz
55Hz
B zone
C zone
D zone
A zone
B zone
C zone
AB*30LBAG
D zone
A zone
B zone
C zone
AB*36LBAG
D zone
AB*45LBAG
19°C
11°C
( Table 1 : Compressor Frequency Range )
( Fig. 1 : Limit of Maximum Frequency based on Outdoor Temperature )
05-01
Fan speed mode
5-2. HEATING OPERATION
5-2-1 HEATING CAPACITY CONTROL
A sensor (room temperature thermistor) built in the indoor unit 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 3 degC than a set temperature,
the compressor operation frequency will attain to maximum performance.
* If the room temperature is higher 2 degC than a set temperature, the compressor
will be stopped.
* When the room temperature is between +2 degC to -3 degC 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 outdoor temperature.
( Table 2 : Compressor Frequency Range )
( Fig.2 : Limit of Maximum Frequency based on Outdoor Temperature )
05-02
Outdoor air
temperature
C zone
B zone
A zone
A zone
95Hz
90Hz
80Hz
95Hz
90Hz
80Hz
92Hz
90Hz
80Hz
B zone
C zone
A zone
B zone
C zone
A zone
B zone
C zone
AB*30LBAG
AB*36LBAG
AB*45LBAG
16°C
12°C
Limit of Maximum
Frequency
minimum
frequency
maximum
frequency
20Hz
20Hz
20Hz
95Hz
95Hz
92Hz
AB*30LBAG
AB*36LBAG
AB*45LBAG
5-3. DRY OPERATION
5-3-1 INDOOR UNIT CONTROL
The compressor rotation frequency shall change according to set temperature and room
temperature variation which the room temperature sensor of the indoor unit has detected
as shown in the Table 3.
Room
temperature
Room
temperature
Compressor ON
Ts+1.5 degC
Ts+1 degC
Compressor OFF
Compressor
ON
ON
OFF
Indoor fan
air flow mode
Air flow mode : Lo
OFF
30 5 30 120 5 (sec)
180 180
( Table 3 : Compressor frequency )
( Fig.3 : Compressor Control based on Room Temperature )
( Fig.4 : Indoor Fan Control )
05-03
Operating frequency
45Hz
45Hz
30Hz
AB*30LBAG
AB*36LBAG
AB*45LBAG
Ts : Setting temperature
5-4. 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 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 1 minute. (Air flow mode: S- Lo)
After 1 minute, depends on the room temperature and outdoor unit's operarion mode,
the operation mode is selected in accordance with the table below.
( Table 4 : Operation mode selection table )
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
1
2
3
1
4
1
05-04
Room temperature :TR
Operation mode
TR > Ts +2 degC
Ts +2 degC > TR
=
=
Ts +2 degC > TR > Ts -2 degC
Cooling
Monitoring
Heating
Ts : Setting temperature
5-5. INDOOR FAN CONTROL
1. Fan speed
( Table 5 : Indoor Fan Speed )
Operation mode Air flow mode Speed (rpm)
Hi 1000
850
650
200
Me
Lo
Heating
S-Lo
2. FAN OPERATION
The airflow can be switched in 4 steps such as AUTO, LOW, MED, HIGH, while the indoor
fan only runs.
05-05
Hi 1000
850
650
200
Me
Lo
Cooling
S-Lo
Operation mode Air flow mode Speed (rpm)
Hi 1100
750
900
900
200
Me
Lo
Heating
S-Lo
Hi 1100
750
200
Me
Lo
Cooling
S-Lo
Operation mode Air flow mode Speed (rpm)
Hi 1200
1100
950
200
Me
Lo
Heating
S-Lo
Hi 1200
1100
950
200
Me
Lo
Cooling
S-Lo
3. COOLING OPERATION
Switch the airflow [AUTO], and the indoor fan motor will run according to a room temperature,
as shown in Figure 5.
On the other hand, if switched in [HIGH] [LOW], the indoor motor will run at a constant airflow of [COOL]
operation modes LOW, MED, HIGH,as shown in Table 5.
( Fig.5 : Airflow change - over ( Cooling : AUTO ) )
When the room
temperature rises
When the room
temperature drops
TR : Room temperature
Ts : Setting temperature
TR-Ts > 2 degC
=
1 degC > TR-Ts
2 degC > TR-Ts > 1 degC
=
TR-Ts > 3 degC
=
2 degC > TR-Ts
3 degC > TR-Ts > 2 degC
=
HIGH mode
MED mode
LOW mode
*1
*1 : Contains a condition to the following
When the operation mode is set to AUTO mode
at the start of operation.
When the setting temperature was changed.
When the operation mode was changed to COOLING mode.
When the airflow mode was changed to AUTO mode.
When [AUTO] is selected, the indoor fan motor runs LO and OFF at 1 minute intervals.
AB*30LBAG
AB*36LBAG
AB*45LBAG
05-06
4. HEATING OPERATION
When the airflow is set to [AUTO], the indoor fan
motor operates [MED] mode.
Then the indoor fan motor will run according
to a room temperature, as shown in Figure 6.
On the other hand, if switched in [HIGH] [LOW],
the indoor motor will run at a constant airflow
of [COOL] operation modes LOW, MED, HIGH,
as shown in Table 5.
5. COOL AIR PREVENTION CONTROL (Heating mode)
6. DRY OPERATION
Refer to the Figure 4.
During the dry mode operation, the fan speed setting can not be changed.
47°C
41°C
SETTING
FAN MODE
LO mode
S-LOW mode
33°C
30°C
30°C
Indoor heat exchanger
temperature
Indoor heat exchanger
temperature
Indoor heat exchanger
temperature
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.
( Fig.6 : Airflow change - over ( Heating : AUTO ) )
( Fig.7 : Cool Air Prevention Control )
Hold
Go down one-step
Go up one-step
5-6. OUTDOOR FAN CONTROL
1. Outdoor Fan Motor
Following table shows the fan speed of the outdoor unit.
*
The outdoor fan speed changs in the range mentioned avobe depending on the compressor
frequency and outdoor temperature.
(When the compressor frequency and outdoor temperature increase, the outdoor fan speed
also changes to the higher speed.
When the compressor frequency and outdoor temperature decrease, the outdoor fan
speed also changes to the lower speed.)
*
AB*45LBAG has two fan motors.
*
For AB*30/ 36LBAG
It runs at 500rpm for 20 seconds after starting up the outdoor fan.
When the outdoor heat exchanger tenperature is lower than 2°C,
the fan speed switches to 900rpm on heating mode.
For AB*45LBAG
It runs at 500rpm for 20 seconds after starting up the outdoor fan.
When the outdoor heat exchanger tenperature is lower than 2°C,
the fan speed switches to 850rpm(Upper fan) and 750rpm(Lower fan) on heating mode.
*
05-07
( Table 6 : Fan speed of the outdoor unit )
850/ 780/ 400/ 250/ 170 rpm
850/ 780/ 400/ 350/ 300 rpm
780/ 750/ 350/ 0 rpm
900/ 780/ 400/ 250/ 170 rpm
850/ 780/ 350/ 200/ 150 rpm
780/ 750/ 350/ 200/ 150 rpm
Cooling
Heating
AB*36LBAG
AB*30LBAG
AB*45LBAG
Upper fan
Lower fan
5-7. 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 / Fan mode Horizontal flow
Heating mode Downward flow
(Function Range)
(Fig.8 : Air Direction Range)
(Operation Range)
1-2. SWING OPERATION
When the swing signal is received from the remote controller, the vertical louver starts to swing.
The range of swing depends on the set airflow direction.
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.
05-08
The indoor fan motor starts after the louver reaches to the setting position.
At the start of operation if the setting louver position is or ,the setting position is set to or
after the louver moves from totally-enclosed position to . (Positioning Control)
( Stop mode means Operation stop.)
1
2
3
4
1 2 3 4
1
2
3
4
1
4
Cooling / Dry mode
Heating mode
Fan mode
1 2 3
1
1
2
2
3
4
(Swinging Range)
Airflow direction set
Range of swing
1
1
2
2
3
4
4
4
to
to
to
to
2. HORIZONTAL LOUVER CONTROL
Each time the button is pressed, the air direction range will
change as follows:
Cooling / Dry mode
Heating mode
Fan mode
Use the air direction adjustments within the ranges shown above.
The horizontal airflow direction is set automatically on after initialization.
(Function Range)
(Fig.9 : Air Direction Range)
(Operation Range)
2-1. SWING OPERATION
When the swing signal is received from the remote controller, the horizontal louver starts to swing.
The range of swing depends on the set airflow direction.
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.
05-09
( Stop mode means Operation stop.)
1 2 3 4 5
1 2 334 5
1
3
4
5
2
1
2
1
3
1
2
5
5
3
4
3
4
5
(Swinging Range)
Airflow direction set
Range of swing
to
to
to
to
1 5
to
5-8. COMPRESSOR CONTROL
1. OPERATION FREQUENCY RANGE
The operation frequency of the compressor is different based on the operation mode as
shown in Table 7.
Cooling Heating
Min Max Min Max
Dry
(Table 7 : Compressor Operation Frequency Range)
2. OPERATION FREQUENCY CONTROL AT START UP
The compressor frequency soon after the start-up is controlled as shown in Figure 10.
(Fig.10 : Compressor Control at Start-up)
Frequency
Frequency
05-10
AB*30LBAG
20Hz
20Hz
20Hz
90Hz
90Hz
92Hz
AB*36LBAG
AB*45LBAG
20Hz
20Hz
20Hz
95Hz
95Hz
92Hz
45Hz
45Hz
30Hz
Time A Time B Time C
Time E
Time D
Hold
1
2
(Frequency)
(Time)
Frequency
Frequency
AB*30LBAG
AB*36LBAG
AB*45LBAG
180sec
60sec
120sec
120sec
720sec
180sec
80sec
180sec
180sec
720sec
40Hz
56Hz
56Hz
70Hz
AB*30LBAG
AB*36LBAG
AB*45LBAG
Time A Time B Time C Time D Time E
1 Discharge pipe temp. > 30°C
2 Discharge pipe temp. < 30°C
1 Discharge pipe temp. > 35°C
2 Discharge pipe temp. < 35°C
=
=
For AB*30/ 36LBAG
For AB*45LBAG
5-9. 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
05-11
AR- JW1
5-9-1 Wireless Remote Controller
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
05-12
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
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