The control box is easily accessible for maintenance work
Wide opening for easy access.
CASSETTE TYPE
AU24
Detachable,washable filter and intake grille.
Wide opening and long-life filter.
Long-life filter
High efficiency, long-life filter extends the cleaning cycle.
CASSETTE TYPE
AU24
Slim intake grille
Slim type intake grille can fit the ceiling after installation.
20
(unit: mm)
Group controller
One remote controller can control up to 16 air conditioners.
All of the air conditioners will be operated with the same settings.
Long-life filter
Connectable quantity : Maximum 16 indoor units for 1 remote controller.
- (03 - 01) -
Duct connection hole opening
Fresh air can be introduced through this opening.
Distribution
duct
CASSETTE TYPE
AU24
Fresh air
CASSETTE TYPE
AU24
Distribution
duct
Conditioned air can be distributed by means of a distribution duct.
Two-way
One-way
- (03 - 02) -
3-2. REMOTE CONTROLLER
3-2-1. WIRED REMOTE CONTROLLER
FEATURES
Various timer setup (ON / OFF / WEEKLY) are possible.
SUMOTUWETH FR SA
7
3126 9
15 18 21
CASSETTE TYPE
AU24
High performance and compact size
Equipped with weekly timer as standard function.
(2 times Start / Stop per day for a week)
When setting up a timer, operation mode and a temperature
setup can be changed.
When a failure occurs,the error code is displayed. (Maximum of 16)
Error indication.(A maximum of 16 error histories are memorizable.)
Up to 16 indoor units can be simultaneously controlled.
Anti freeze and energy saving operation are possible.
Easy installation with a slim shape with no boldge in the back.
The room temperature can be controlled by being detected the temperature
accurately with built-in thermo sensor.
CASSETTE TYPE
AU24
Three functions are combined in
one unit.
Wired
remote
controller
Built-in timers
Possible to set ON/OFF time to operate twice each day
of the week.
SUMOTUWETH FR SA
7
3126 9
15 18 21
Setup screen example
(Set to Wednesday: 8:00 to 20:00.)
0 3 6 9 12 15 18 21 Time
At "Weekly timer" + "Set back timer" setup
Easy-to-understand time bar display
24°C
SUMOTUWETH FR SA
7
3126 9
15 18 21
Screen
after setup
24°C 28°C 24°C
Weekly
timer
Setback
timer
Setback timerWeekly timer
Possible to set temperature for two time spans and
for each day of the week.
SUMOTUWETH FR SA
3126 9
15 18 21
Setup screen example
(Set from Sunday to Saturday: 12:00 to 15:00, 28 °C.)
28°C
0 3 6 9 12 15 18 21 Time
24°C
0 3 6 9 12 15 18 21 Time
28°C
Easy-to-understand operationSimple installation
Components are compatible with standard
switch boxes. Flat back construction allows
equipment to be installed wherever it is
needed.
Timer
area
[
Variable timer control
]
The operation/display sections are zoned according to time and operation, enabling variable programming to match application.
Operation
area
European
switch box
- (03 - 03) -
JIS box
FUNCTIONS
1
START/STOP button
Pressed to start and stop operation.
2
Display
SUMOTUWETH FR
SA
369
12 15 18 21
2
7
8
9
10
11
CASSETTE TYPE
AU24
12
CLOCK ADJUST
SET BACK
DELETESET
DAY
DAY OFF
ENERGY
SAVE
THERMO
SENSOR
14
1
3
4
5
6
13
Display panel
15
16
1718 19
Set Temperature button
Selects the setting temperature.
3
Master control button
Selects the operating mode(AUTO, HEAT, FAN, COOL, DRY).
4
Fan control button
Selects the fan speed (AUTO, LOW, MED, HIGH).
5
Thermo sensor button
6
Energy save button
Turns the energy efficient mode on and off.
7
Timer mode (CLOCK ADJUST) button
Selects the timer mode (OFF TIMER, ON TIMER,
WEEKLY TIMER) Set the current time.
8
Day (DAY OFF) button
Temporarily cancels of one day timer.
9
Set back button
pressed select the set back timer.
CASSETTE TYPE
AU24
SUMOTUWETH FR
369
DIMENSION
120
SUMOTUWETH FR
CLOCK ADJUST
SET BACK
DELETESET
SA
369
12 15 18 21
DAY
DAY OFF
Front View
12 15 18 21
ENERGY
SAVE
SA
THERMO
SENSOR
202122
[ Unit : mm ]
120
10
Set time button
Pessed to select the set back timer.
11
Delete button
The schedule of a weekly timer is deleted.
12
Set button
Sets the date, hour, minute and on-off time.
13
Vertical air flow direction and swing button
Push for two seconds to change the swing mode
14
17
Operation lamp
Lights during operation and when the timer is on.
15
Timer and clock display
16
Operation mode display
17
Fan speed display
18
Central control display
19
Temperature display
20
Stand by display
Indicates during the oil recovery and defrosting operation.
21
Vertical swing display
22
Energy save display
SPECIFICATION
SIZE (H x W x D mm)120 x 120 x 17
WEIGHT( g )160
CABLE LENGTH( m )
POWER( V )
10
12
- (03 - 04) -
3-3. SPECIFICATIONS
Fin Pitch
Fin Pitch
INDOOR
FAN SPEED
COOL/HEAT
46/46
44/44
39/39
52/54
Turbo × 1
Propeller × 1
40
65
Aluminium
2 × 30
630 × 901 × 36.38
1300
Copper tube
Copper tube
AVAILABLE VOLTAGE RANGE
198-264V 50Hz
C
EUROPEAN ENERGY LABEL
743 × 984 × 413
355 × 1060 × 1025
Inverter
White (5Y9/0.5NN)
Beige(10YR7.5/1.0NN)
2 × 10
210 × 970 × 26.6
1.45
Aluminium
1.30
34/44(75/97)
54/58(119/128)
1800
15.88(5/8inc)
25(chargeless: 10)
FLARE
9.52(3/8inc)
10.5/13.0102.81
3.25
246 × 830 × 830
650 × 830 × 320
7.10/8.00
24200/27300
7.80/9.00
26600/30700
2.0(4.2)
2.53/2.98
2.40/2.98
11.1/13.0
REMOTE CONTROLLER
Wired
ABS
DRAIN PIPE
MATERIAL
SIZE
Outer diameter 37.0/Inner diameter 32.0
DIMENSIONS
H × W × D
mm
MAX LENGTH
SIZE
mm
kg(lbs)
WEIGHT
CONNECTION METHOD
NET
GROSS
POE
15
TYPE
R410A
TYPE
MAX HEIGHT
REFRIGERANT OIL
REFRIGERANT
PIPE
NET / GROSS
kW
INPUT POWER
COOLING
HEATING
CURRENT
dB(A)
STARTING CURRENT
MOISTURE REMOVAL
kW/kW
INVERTER HEAT PUMP TYPE
CASSETTE MODELS
TYPE
230V 50Hz
RATED / MAX
INDOOR
OUTDOOR
POWER SOURCE
MODEL NAME
CAPACITY
RATED / MAX
AU 24LUAR
AO 24LMAKL
A
NOISE LEVEL
(SOUND
PRESSURE)
COOL/HEAT
INDOOR
AIR
CIRCULATION
COOL/HEAT
m
3
/h
EER
COP
FAN MOTOR OUTPUT
W
INDOOR
1250/1250
1080/1080
920/920
3200/3200
Coil
OUTDOOR
r.p.m
400/400
-
540/490
480/430
390/340
OUTPUT
780/780
HEAT
EXCHANGER
TYPE
FAN TYPE x Q'ty
OUTDOOR
Coil
Fin
Fin
mm
COMPRESSOR
OUTDOOR
INDOOR
OUTDOOR
Hermetic type, 4 poles, DC motor, TWIN ROTARY
Rows x Stages
mm
Rows x Stages
TYPE
STARTING METHOD
INDOOR
CASING COLOR
COOLINGRATED / MAX
HEATINGRATED / MAX
COOLINGRATED / MAX
HEATINGRATED / MAX
COOLING
CASSETTE TYPE
AU24
OUTDOORHigh
HEATING
Quiet
INDOOR
OUTDOOR
INDOOR
OUTDOOR
High
Med
Low
High
Med
Low
High
Low
High
Med
Low
COOLING
kW
BTU/h
kW
BTU/h
A
l/h(pints/h)
CASSETTE TYPE
AU24
INDOOR
OUTDOOR
INDOOR
OUTDOOR
INDOOR
OUTDOOR
W
Coil Dimensions
Coil Dimensions
LIQUID
GAS
m
m
CHARGEg
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)
mm
- (03 - 05) -
3-4. DIMENSIONS
3-4-1. OUTDOOR UNIT
MODEL : AO 24L
(Unit : mm)
Top view
830
CASSETTE TYPE
AU24
650
12
Front view
Bottom
Air flow
350
320
Side view
CASSETTE TYPE
AU24
154
101
58
90
MOUNTING POSITION
When there are obstacles at the
back or front sides.
100 mm
or more
600 mm
or more
Bottom view
100 mm
or more
343
603
When there are obstacles at the
back, side(s), and top.
600 mm or more
300 mm
25
(
S
0 mm o
er
v
i
c
r
more
e s
p
ac
e)
or more
When there are obstacles at the
back, side with the installation of
more than one unit.
Indoor unitOutdoor unitIndoor temperature Indoor humidity Outdoor temperature
Cooling
Dry
18 to 32°CAbout 80% or less0 to 43°C
Heating
16 to 30°C--10 to 24°C
Operation Range
Model
AO24L
AU24L
Mode
CASSETTE TYPE
AU24
CASSETTE TYPE
AU24
- (03 - 15) -
3-11. FAN PERFORMANCE AND AIR FLOW
3-11-1. AIR VELOCITY DISTRIBUTION
MODEL : AU 24L
4-WAY AIR OUTLET
(m)
3
2
1
0.5
1
2
0.25
UNIT : m/s
Note :
Condition
Fan speed : High
Operation mode :FAN
0
0.25
2110.50.50.25
2
1
CASSETTE TYPE
AU24
2
3
8765432
(m)
(m)
2
1
0
2
1
0
0.25
87
654321012345678
22
11
0.50.5
0.250.25
0.5
21012
2
1
UNIT : m/s
2
1
0.25
0.5
1012345678
UNIT : m/s
2
1
0.5
SIDE VIEW
HORIZONTAL LOUVER
: Downward
(m)
0.25
TOP VIEW
HORIZONTAL LOUVER
: Upward
(m)
SIDE VIEW
HORIZONTAL LOUVER
: Upward
(m)
CASSETTE TYPE
AU24
2-WAY AIR OUTLET
(m)
1
0
1
87654321012345678
(m)
2
1
0
0.25
87654321012345678
0.5
1
UNIT : m/s
210.50.25210.50.25
UNIT : m/s
2
2
- (03 - 16) -
1
0.5
0.25
TOP VIEW
HORIZONTAL LOUVER
: Upward
(m)
SIDE VIEW
HORIZONTAL LOUVER
: Upward
(m)
3-11-2. AIR FLOW
m3/h
1250
l/s347
CFM736
m3/h
1080
l/s300
CFM636
m3/h
920
l/s256
CFM541
m3/h
3200
540
480
390
780
Indoor unit
Outdoor unit
FAN SPEED
NUMBER OF
ROTATIONS
(r.p.m)
AIR FLOW
HIGH
MED
LOW
HIGH
MODELS : AU 24L / AO 24L
CASSETTE TYPE
AU24
l/s889
CASSETTE TYPE
AU24
CFM1883
- (03 - 17) -
3-11-3. DUCT CONNECTION
MODEL : AU 24L
OUTLET AIR
(Pa)
Duct
(Inside Dia. ø100mm)
DUCT
L
CASSETTE TYPE
AU24
STATIC
PRESSURE
98
L=5m
L=3m
L=1m
49
0
01234
(m
3
/min)
(mmAq)
10
8
6
4
2
0
5
CASSETTE TYPE
AU24
Duct
(Inside Dia. ø100mm)
L
FRESH AIR
Duct
(Inside Dia. ø70mm)
DUCT
STATIC
PRESSURE
(Pa)
(Pa)
58.8
98
L=5m
49
0
01234
(m
3
/min)
(mmAq)
7
6
5
(mmAq)
10
L=3m
8
L=1m
6
4
2
0
5
P
Static pressure required
to take in fresh air
Duct Fan
DUCT
STATIC
PRESSURE
39.2
19.6
4
3
2
1
0
0
0.10.20.30.40.50.6
- (03 - 18) -
(m
3
/min)
0
3-12. NOISE LEVEL CURVE
3-12-1. OUTDOOR UNIT
COOLING
MODEL : AO 24L
80
70
µbar)
60
50
CASSETTE TYPE
AU24
40
30
Octave-band sound-pressure level dB : (0dB=0.0002
20
10
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
HEATING
MODEL : AO 24L
80
70
µbar)
60
50
40
30
Octave-band sound-pressure level dB : (0dB=0.0002
20
10
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
CASSETTE TYPE
AU24
0
631252505001000200040008000
Octave-band limiting frequency, Hz
0
631252505001000200040008000
Octave-band limiting frequency, Hz
- (03 - 19) -
SOUND LEVEL CHECK POINT
CASSETTE TYPE
AU24
CASSETTE TYPE
AU24
- (03 - 20) -
3-12-2. INDOOR UNIT
HIGH
LOW
HIGH
LOW
COOLING
MODEL : AU 24L
80
70
µbar)
60
50
CASSETTE TYPE
AU24
40
30
Octave-band sound-pressure level dB : (0dB=0.0002
20
10
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
HEATING
MODEL : AU 24L
80
70
µbar)
60
50
40
30
Octave-band sound-pressure level dB : (0dB=0.0002
20
10
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
CASSETTE TYPE
AU24
0
631252505001000200040008000
Octave-band limiting frequency, Hz
0
631252505001000200040008000
Octave-band limiting frequency, Hz
- (03 - 21) -
SOUND LEVEL CHECK POINT
MIC
////
CENTER
CASSETTE TYPE
AU24
CASSETTE TYPE
AU24
1.5m
MIC
////
CENTER
- (03 - 22) -
3-13. ELECTRIC CHARACTERISTICS
Main Fuse (Circuit breaker)
Current
Model Name
AU24L
AO24L
Power Supply
230
50
Rated Value
Mode
*1) Wiring Spec
20
33104.0
Indoor Fan Motor
0.153
0.64
0.73
Outdoor Fan Motor
0.15
MODELS : AU 24L / AO 24L
Indoor unit
Outdoor unit
VoltageV
FrequencyHz
CurrentA11.110.5
InputkW2.532.40
Max Operating Current A12.512.5
CASSETTE TYPE
AU24
Starting CurrentA
CoolingHeating
CASSETTE TYPE
AU24
A
Power Cable
m
m
2
*2)Limited wiring lengthm
InputkW
Full Load Amp.A
InputkW
Full Load Amp.A
*1) Wiring Spec :Selected Sample
(Selected based on Japan Electrotechnical Standard and Codes Committee E0005)
*2) Limited Wiring length : This is the wiring length in case voltage descent is less than 2%.
When the wiring length becomes long, please select the wiring of a more larger
diameter.
- (03 - 23) -
3-14. SAFETY DEVICE
AO24L
FUSE
(SIDE OF POWER SUPPLY TERMINAL)
OFF 120±5°C
ON 85±7°C
FUSE ON MAIN PCB
COMPRESSOR PROTECTION
AU24L
OUTDOOR UNIT
FAN MOTOR PROTECTIONTHERMAL PROTECTOR150±5°C OFF
PROTECTION FORM
-25A 250V
-3.15A 250V
-5A 250V
PRESSURE SWITCH4.2MPa
CASSETTE TYPE
AU24
THERMAL SWITCH
CASSETTE TYPE
AU24
INDOOR UNIT
PROTECTION FORM
PCB FUSECURRENT FUSE3.15A 250V
FAN MOTOR PROTECTIONTHERMAL PROTECTOR150±5°C OFF
TERMINAL FUSETHERMAL FUSE102±2°C OFF
- (03 - 24) -
3-15. FUNCTION SETTING
Auto restart validity/invalidity
Room temperature correct coefficient
Room temperature correct coefficient
Forbidden
Indoor unit number setting
Forbidden
Forbidden
Forbidden
Ceiling height setting
INDOOR UNIT
DIP SW
3
1
JM3
Jumper Wire
2
3
JM1
JM2
Rotary SW
SW 2
SW 1
SW 4
1
2
3-15-1. INDOOR UNIT
CASSETTE TYPE
AU24
SWITCH POSITION
CASSETTE TYPE
AU24
Indoor unit control circuit board
- (03 - 25) -
3-15-2. SWITCH FUNCTION (INDOOR UNIT)
SW 1-1
SW state
OFF
Invalidity
ON
Validity
0 deg
0 deg
0 deg
cooling
-2 deg
SW 1-2
SW 1-3
0 deg
heating
dry
-2 deg
-2 degONONONOFF
OFF
+2 deg
-2 deg
OFF
SW state
-2 deg
OFF
ON
0 deg
+4 deg
SW 4-1
OFF
3
OFF
-
ON
Less than 2.5
Normal
High ceiling 1
High ceiling 2
Low ceiling
-ONON
3.0-3.5
More than 3.5
-
OFF-ON
OFF
2.5-3.0
OFF
Ceiling height(m)
DIP - SW4
1
2
DIP SWITCH SETTING
SW1-1. Auto restart setting
Auto restart function can be selected by turning this switch ON/OFF.
AUTO RESTART SETTING
(Factory setting)
CASSETTE TYPE
SW1-2, 1-3. Room temperature correct coefficient of heating.
AU24
CASSETTE TYPE
AU24
Decide the heating temperature correct coefficient vale of heating.
TEMPERATURE CORRECTION
(Factory setting)
SW4-1. Dip SW 4-1setting forbidden
(Factory setting)
SW4-2, 4-3. Ceiling height setting
(Factory setting)
If the setting for a low ceiling is selected, the capacity of the air
conditioner decreases slightly.
- (03 - 26) -
ROTARY SWITCH SETTING (SW2)
0
Single
1 - 15
Indoor unit address
SW 2
SW state
SW state
JM 1, 2, 3
Connect
Disconnect
Forbidden
This switch can be used when group control system.
Set the indoor unit address in the 0,1,-,15 order.
(Factory setting)
JUMPER WIRE SETTING
JM 1, 2, 3 setting forbidden
CASSETTE TYPE
AU24
(Factory setting)
CASSETTE TYPE
AU24
- (03 - 27) -
3-15-3. WIRED REMOTE CONTROLLER CIRCUIT BOARD
Wired remote controller
1
Dual remote controller setting
2
Group control setting
DIP SW
CASSETTE TYPE
AU24
SWITCH POSITION
Wired remote controller
Front case (back side)
3
4
Model setting
Auto changeover setting
5
6
Memory backup setting
CASSETTE TYPE
AU24
DIP Switch
OFF
ON
1
2
3
4
5
6
ON
- (03 - 28) -
3-15-4. WIRED REMOTE CONTROLLER
DIP SWITCH SETTING
1. SW setting
1-1 Dual remote controller setting
Set the remote controller DIP switch No.1 and 2 according to the following table.
(Factory setting)
Number of
remote
controller
1 (Normal)
2 (Dual)
CASSETTE TYPE
AU24
1-2 Group control setting
Number of indoor unit connection (One/Multiple)
This is switched according to the number of connected indoor units.
DIP-SW
No.3
OFF
Master unitSlave unit
DIP-SW
No.1
DIP-SW
No.2
ON
OFF
(Factory setting)
Number of indoor unit
One unit connection
OFF
OFF
DIP-SW
No.1
ONON
DIP-SW
No.2
CASSETTE TYPE
AU24
ONMultiple unit connection
1-3 Model setting
The system type of the outdoor unit can be selected by setting up DIP switch No.4 as follows.
(Factory setting)
DIP-SW
No.4
OFF
ONCooling only model
Heat Pump model
Model
1-4 Auto changeover setting
Selecting auto changeover validity / invalidity.
(Factory setting)
DIP-SW
No.5
OFF
ONValidity
Auto changeover
Invalidity
1-5 Memory backup setting
Set to ON to use batteries for the memory backup.if batteries are not used,
all of the settings stored in memory will be deleted if there is a power failure.
This function is wired remotecontroll only.
(Factory setting)
DIP-SW
No.6
OFF
ONValidity
Memory backup
Invalidity
- (03 - 29) -
3-16. OPTIONAL PARTS
ADDITIONAL GRILLE
UTG-AGEA-W
The additional grille hides the gap between the ceiling hole
and the outlet grille.
Additional grille (optional parts)
Additonal grille
CASSETTE TYPE
AU24
The ceiling hole
Indoor Unit(grille)
CASSETTE TYPE
AU24
- (03 - 30) -
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