General AUHA18LA, AUHA18LAL, AOHA18LACL, AUHA24LA, AUHA24LAL Technical Manual

R410A

INDOOR UNIT

1. CASSETTE

AU A18LAL
AU F18LAL
AU A24LAL
AU A24LBL

TYPE :

D2D_AU030E/04

2008.04.08

1. FEATURE

MODEL :

CASSETTE TYPE

AU A18-24L

INDOOR UNIT

OUTDOOR UNIT

AU A18LAL AO A18LACL AO B18LACL
AU F18LAL AO A18LALL AO B18LALL

AU A24LAL AO A24LACL AO B24LACL
AU A24LBL AO A24LALL AO B24LALL

FEATURES

ENERGY SAVING (AO A18LACL, AO A18LALL, AO A24LACL, AO A24LALL connection model)

• ALL DC DESIGN

• Heat exchange efficiency increased and larger air flow by adoption of new type turbo fan

ADVANCEMENT IN COMFORT

• Quiet operation was realized by adoption of new type turbo fan

• Improvement of air stream

IMPROVEMENT IN AIRFLOW RANGE (18 TYPE)

*Wind velocity at maximum point of airflow range is 0.5m/s

CASSETTE TYPE

AU A18-24L

Conventional type

New type

2.5 m

3.7 m

EXPANSION OF AIR OUTLET ADJUSTMENT RANGE (18 TYPE)

Auto airflow direction and auto swing
Expanded air outlet range provides more comfortable space

New type

IMPROVEMENT OF INSTALLATION & MAINTENANCE

• COMPACT DESIGN

Fits the European size ceiling.

New type

590

590

18 type

18 type

18kg

18kg

570

570

24 type

24 type

19kg

19kg

- (01 - 01) -

• EASY MAINTENANCE

CASSETTE TYPE

AU A18-24L

Maintenance of fan motor and fan

Maintenance of fan motor and fan can be done
easily after taking off the panel,
since bell-mouth can be removed easily
A : Fan motor
B : 2 stage turbo fan
C : Bell-mouth
D : Panel

Long life filter
: standard equipment

Adaptation of transparent drainage parts

Easy check of operation of drain-up kit
When you install

EASY INSTALLATION

New type

Easy setting by wireless or
wired remote controller

CASSETTE TYPE

AU A18-24L

A

B

C

D

Grille cover

FUNCTION SETTING

OTHER FUNCTIONS

• The number of air outlet can be selected.

4-way direction 3-way direction

• High ceiling mode

Air reaches sufficiently up to 3.5m height, even it is compact cassette type.

High ceiling

3.5m

• Setting the filter sign
The indoor unit has sign to inform the user that it is time to clean the filter

• Setting the cooler room temperature correction

• Setting the heater room temperature correction

• Auto restart

- (01 - 02) -

1 2

2. REMOTE CONTROLLER

WIRELESS REMOTE CONTROLLER

CASSETTE TYPE

AU A18-24L

FEATURES

Four kinds of timer setup (ON / OFF / PROGRAM / SLEEP) are possible.

Four kinds of timers. Easy operation.

Easy to change transmission code (4 patterns) by button operation.

Simple function setting

Setting of the air conditioner selection function is performed by remote controller.

Built-in timers

Select from four different timer programs (On/Off/Program/Sleep).

CASSETTE TYPE

AU A18-24L

Program timer

The program timer operates the ON and OFF timer once within a 24 hour period.

Sleep timer

The sleep timer function automatically corrects the temperature thermostat setting according to the
time setting to prevent excessive cooling and heating while sleeping.

Cooling operation/dry operation

When the sleep timer is set, the set temperature
automatically rises 1 °C every hour. The set
temperature can rise up to a maximum of 2 °C.

Timer setting

60min.

1 °C

2 °C

Heating operation

When the sleep timer is set, the set temperature
automatically drops 1 °C every 30 minutes. The
set temperature can drop to a maximum of 4 °C.

1 °C

2 °C

3 °C

4 °C

30min.

60min.

90min.

Timer setting

Simultaneously operation

After code change

Mixed-up

• Code selector switch eliminates unit
being wrongly switched.
(Up to 4 codes can be set.)

A B C D

A B

C

1. Press the MODE button for
more than five seconds
to start the code change.

D

•Wide and precise
transmitting range.

- (01 - 03) -

2. Press the or button to
select the desired code.

A B C D

3. Press the MODE button
again to end the code change.

CASSETTE TYPE

AU A18-24L

FUNCTIONS

1

3

2

4

5

11

13

16

10

14

12

15

CASSETTE TYPE

1

MODE button

Selects the operating mode (AUTO, HEAT, FAN, COOL, DRY).
/Start / end R.C. custom code change. (Max 4 types)

2

Economy button

3

Set temp. button ( / )

AU A18-24L

Set remote controller custom code buttons

Sets the indoor temp./ Sets R.C. custom code.

4

Filter reset button

5

Sleep button

Pressed to select sleep timer.

6

6

7

8

9

Fan button

Selects the fan speed (AUTO, QUIET, LOW, MED, HIGH).

7

START/STOP button

Pressed to start and stop operation.

8

Set button (Vertical)

Air flow direction vertical set button.

9

Set button (Horizontal)*

Air flow direction horizontal set button.

10

Swing button

Air flow direction swing button.

11

Timer mode button

Pressed to select the timer mode. (OFF TIMER, ON TIMER,
PROGRAM TIMER, TIMER RESET)

Display panel

17

18

19

20

21

22

23

24

25

12

Timer set ( / ) button

Sets the current time and on-off time.

13

Clock adjust button

Sets the current time.

14

Reset button

Used when replacing batteries.

15

Test run button

Used when testing the air conditioner after installation.

16

Signal transmitter

17

Temperature set display

18

Economy display

19

Operating mode display

20

Sleep display

21

Transmit indicator

22

Fan speed display

23

Swing display

24

Timer mode display

25

Clock display

* These functions are not available.

SPECIFICATION

SIZE (H x W x D mm) 170 x 56 x 19

WEIGHT ( g ) 85 (w/o batteries)

ACCESSORY Holder

- (01 - 04) -

3. SPECIFICATIONS

CASSETTE TYPE

AU A18-24L

Type

Model name

Power source

Available voltage range

European energy label

Cooling

Capacity

Heating

Input power

Current

EER 3.21 3.21

COP 3.61 3.61
Moisture removal

Fan

Sound pressure level

Heat exchanger type

Enclosure

Dimensions
( H×W×D)

Weight

Connection pipe

Operation range

Remote controller type

Drain pipe

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 mode : Standard

The maximum current and the maximum input value are the maximum value when operated within the operation range (temperature).

Cooling

Heating

Cooling

Heating

Airflow
rate

Type × Q'ty

Motor output W 54 54

Net

Gross

Net

Gross

Size mm

Method Flare Flare

Material
Size

Rated

Min.-Max.

Rated

Min.-Max.

Rated

*Max.

Rated

*Max.

Rated

*Max.

Rated

*Max.

Cooling

Heating

Cooling

Heating

Cooling

Heating

Dimensions (H × W × D)

Fin pitch 1.20 1.45

Rows x Stages 2 x 10 3 x 10

Pipe type

Fin type

Material

Colour

Unit

Panel

Unit

Panel

Unit 15 (33) 17 (37)

Panel

Unit 18 (40) 20 (44)

Panel

Liquid 6.35 ( 1/4 in.)

Gas 12.70( 1/2 in.) 15.88( 5/8 in.)

Cooling

Heating °C 30 or less 30 or less

Cooling A A

Heating A A

kW 5.20 7.10

BTU/h 17700 24200

kW 0.90 - 5.90 0.90 - 8.00

BTU/h 3100 - 20100 3100 - 27300

kW 6.00 8.00

BTU/h 20500 27300

kW 0.90 - 7.50 0.90 - 9.10

BTU/h 3100 - 25600 3100 - 31000

kW

A

kW/kW

l/h (pints/h) 2.2 ( 3.9 ) 2.7 ( 4.8 )

High 680 930

Med 580 830

Low 490 600

Quiet 410 450

High 800 930

Med 680 860

Low 580 700

Quiet 450 530

High 38 49
Med 34 44

Low 30 36

Quiet 26 30

High 43 49
Med 38 45

Low 34 40

Quiet 30 33

m3/h

dB(A)

mm

mm

kg(lb.)

°C 18 to 32 18 to 32

%RH 80 or less 80 or less

mm

AU A18LAL, AU F18LAL AU A24LAL, AU A24LBL

AO A18LACL, AO A18LALL

1.62 2.21

2.16 2.85

1.66 2.21

2.96 3.19

7.1 9.7

9.0 12.0

7.3 9.7

12.5 13.5

210 × 1310 × 13.3
210 × 1250 × 13.3

6.35 ( 1/4 in.)

Outer diameter : 25.4 / Inner diameter : 19.4

CASSETTE MODEL

INVERTER HEATPUMP

AO A24LACL, AO A24LALL

230V 50Hz

198-264V 50Hz

Turbo × 1

210 × 1375 × 13.3
210 × 1310 × 13.3
210 × 1250 × 13.3

Copper tube

Aluminium

PS

WHITE

245 × 570 × 570

49 x 700 x 700

265 x 730 x 625

120 x 765 x 755

2.6 (5.7)

4.5 (10.0)

WIRELESS

ABS

CASSETTE TYPE

AU A18-24L

- (01 - 05) -

CASSETTE TYPE

AU A18-24L

Type

Model name

Power source 230V 50Hz

Available voltage range 198-264V 50Hz

European energy label

Cooling

Capacity

Heating

Input power

Current

EER 3.06 3.06

COP 3.43 3.43
Moisture removal

Fan

Sound pressure level

Heat exchanger type

Enclosure

Dimensions
( H×W×D)

Weight

Connection pipe

Operation range

Remote controller type WIRELESS

Drain pipe

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 mode : Standard

The maximum current and the maximum input value are the maximum value when operated within the operation range (temperature).

Cooling

Heating

Cooling

Heating

Airflow
rate

Type × Q'ty

Motor output W 54 54

Net

Gross

Net

Gross

Size mm

Method Flare Flare

Material ABS
Size Outer diameter : 25.4 / Inner diameter : 19.4

Rated

Min.-Max.

Rated

Min.-Max.

Rated

*Max.

Rated

*Max.

Rated

*Max.

Rated

*Max.

Cooling

Heating

Cooling

Heating

Cooling

Heating

Dimensions (H × W × D)

Fin pitch 1.20 1.45

Rows x Stages 2X10 3X10

Pipe type

Fin type

Material

Colour

Unit

Panel

Unit

Panel

Unit 15 (33) 17 (37)

Panel

Unit 18 (40) 20 (44)

Panel

Liquid 6.35 ( 1/4 in.) 6.35 ( 1/4 in.)

Gas 12.70( 1/2 in.) 15.88( 5/8 in.)

Cooling

Heating °C 30 or less 30 or less

Cooling B B

Heating B B

kW 5.20 7.10

BTU/h 17700 24200

kW 0.90 - 5.70 0.90 - 7.80

BTU/h 3100 - 19500 3100 - 26600

kW 6.00 8.00

BTU/h 20500 27300

kW 0.90 - 7.20 0.90 - 8.80

BTU/h 3100 - 24600 3100 - 30000

kW

A

kW/kW

l/h (pints/h) 2.2 ( 3.9 ) 2.7 ( 4.8 )

High 680 930

Med 580 830

Low 490 600

Quiet 410 450

High 800 930

Med 680 860

Low 580 700

Quiet 450 530

High 38 49
Med 34 44
Low 30 36

Quiet 26 30

High 43 49
Med 38 45
Low 34 40

Quiet 30 33

m3/h

dB(A)

mm

mm

kg(lb.)

°C 18 to 32 18 to 32

%RH 80 or less 80 or less

mm

AU A18LAL, AU F18LAL AU A24LAL, AU A24LBL

AO B18LACL, AO B18LALL AO B24LACL, AO B24LALL

1.70 2.32

2.16 2.85

1.75 2.33

2.96 3.19

7.4 10.1

9.0 12.0

7.7 10.2

12.5 13.5

210 × 1310 × 13.3

210 × 1250 × 13.3

CASSETTE MODEL

INVERTER HEATPUMP

Turbo × 1

210 × 1375 × 13.3
210 × 1310 × 13.3
210 × 1250 × 13.3

Copper tube

Aluminium

PS

WHITE

245 x 570 x 570

49 x 700 x 700

265 x 730 x 625

120 x 765 x 755

2.6 (5.7)

4.5 (10.0)

CASSETTE TYPE

AU A18-24L

- (01 - 06) -

4. DIMENSIONS

MODEL : AU A18L, AU F18L, AU A24L

CASSETTE TYPE

AU A18-24L

Top view

•

Decoration panel mounting state

(Unit : mm)

CASSETTE TYPE

AU A18-24L

Side view

MODEL : UTG-UF A-W, UTG-UF B-W

Bottom view

Side view

- (01 - 07) -

Floor

CASSETTE TYPE

AU A18-24L

MOUNTING POSITION

Strong and durable ceiling

(Unit : mm)

CASSETTE TYPE

AU A18-24L

Ceiling mode “Standard” : 2,500 - 3,000
Ceiling mode “High” : 3,000 - 3,500

(4 directions) (3 directions)

Piping position

Obstruction

100 or more

1,200
or more

1,000
or more

- (01 - 08) -

5. WIRING DIAGRAMS

MODEL : AU A18L, AU F18L, AU A24L

CASSETTE TYPE

AU A18-24L

CASSETTE TYPE

AU A18-24L

- (01 - 09) -

6. CAPACITY TABLE

°CDB

°CWB

TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI

4.45 3.38 0.44 4.96 3.40 0.44 5.13 3.69 0.44 5.47 3.71 0.45 5.64 4.00 0.45 5.97 3.99 0.46 6.31 4.25 0.46

4.35 3.32 0.51 4.85 3.34 0.52 5.01 3.64 0.52 5.34 3.65 0.52 5.51 3.94 0.53 5.84 3.92 0.53 6.17 4.18 0.54

4.23 3.26 0.63 4.71 3.28 0.64 4.87 3.57 0.64 5.19 3.58 0.65 5.35 3.86 0.65 5.67 3.85 0.66 6.00 4.10 0.66

4.09 3.19 0.74 4.56 3.21 0.75 4.71 3.49 0.76 5.02 3.50 0.76 5.18 3.78 0.77 5.49 3.76 0.78 5.80 4.01 0.78

4.10 3.20 0.65 4.57 3.21 0.66 4.72 3.49 0.66 5.04 3.51 0.67 5.19 3.79 0.67 5.50 3.77 0.68 5.82 4.02 0.69

5.16 3.75 1.37 5.74 3.77 1.39 5.94 4.10 1.40 6.33 4.12 1.41 6.53 4.44 1.42 6.92 4.43 1.44 7.31 4.72 1.45

4.94 3.64 1.53 5.51 3.66 1.56 5.70 3.98 1.56 6.07 3.99 1.58 6.26 4.31 1.59 6.63 4.29 1.60 7.01 4.57 1.62

4.72 3.52 1.69 5.26 3.54 1.72 5.44 3.85 1.73 5.79 3.86 1.75 5.97 4.17 1.75 6.33 4.15 1.77 6.69 4.42 1.79

4.66 3.49 2.00 5.19 3.51 2.03 5.37 3.81 2.04 5.72 3.83 2.06 5.90 4.13 2.07 6.25 4.11 2.09 6.61 4.38 2.11

3.59 2.94 1.43 4.00 2.95 1.45 4.13 3.21 1.46 4.40 3.22 1.47 4.54 3.48 1.48 4.81 3.47 1.49 5.09 3.69 1.51

2.58 2.45 1.08 2.87 2.46 1.10 2.97 2.68 1.10 3.17 2.69 1.11 3.27 2.90 1.12 3.46 2.89 1.13 3.66 3.08 1.14

0

5

AFR

11.3

°CDB

-10

Outdoor temperature

40

46

35

Indoor temperature

18212325272932

21231215161819

10

30

25

20

15

°CDB

°CWB

TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI

4.45 3.38 0.44 4.96 3.40 0.44 5.13 3.69 0.44 5.47 3.71 0.45 5.64 4.00 0.45 5.97 3.99 0.46 6.31 4.25 0.46

4.35 3.32 0.51 4.85 3.34 0.52 5.01 3.64 0.52 5.34 3.65 0.52 5.51 3.94 0.53 5.84 3.92 0.53 6.17 4.18 0.54

4.23 3.26 0.63 4.71 3.28 0.64 4.87 3.57 0.64 5.19 3.58 0.65 5.35 3.86 0.65 5.67 3.85 0.66 6.00 4.10 0.66

4.09 3.19 0.74 4.56 3.21 0.75 4.71 3.49 0.76 5.02 3.50 0.76 5.18 3.78 0.77 5.49 3.76 0.78 5.80 4.01 0.78

4.10 3.20 0.65 4.57 3.21 0.66 4.72 3.49 0.66 5.04 3.51 0.67 5.19 3.79 0.67 5.50 3.77 0.68 5.82 4.02 0.69

5.16 3.75 1.37 5.74 3.77 1.39 5.94 4.10 1.40 6.33 4.12 1.41 6.53 4.44 1.42 6.92 4.43 1.44 7.31 4.72 1.45

4.94 3.64 1.53 5.51 3.66 1.56 5.70 3.98 1.56 6.07 3.99 1.58 6.26 4.31 1.59 6.63 4.29 1.60 7.01 4.57 1.62

4.72 3.52 1.69 5.26 3.54 1.72 5.44 3.85 1.73 5.79 3.86 1.75 5.97 4.17 1.75 6.33 4.15 1.77 6.69 4.42 1.79

4.50 3.32 2.00 5.02 3.34 2.03 5.19 3.63 2.04 5.53 3.64 2.06 5.70 3.93 2.07 6.04 3.91 2.09 6.38 4.17 2.11

3.47 2.81 1.43 3.86 2.82 1.45 3.99 3.07 1.46 4.26 3.08 1.47 4.39 3.33 1.48 4.65 3.31 1.49 4.91 3.53 1.51

2.49 2.36 1.08 2.78 2.37 1.10 2.87 2.58 1.10 3.06 2.59 1.11 3.16 2.79 1.12 3.34 2.78 1.13 3.53 2.96 1.14

46

25

30

35

40

10

15

AFR

11.3

Indoor temperature

18

21

Outdoor temperature

12

15

°CDB

-10

0

5

20

32

2319211618

272923

25

6-1. COOLING CAPACITY

CASSETTE TYPE

AU A18-24L

This table is created using the maximum capacity.

MODEL : AU A18L, AU F18L / AO A18L

MODEL : AU A18L, AU F18L / AO B18L

CASSETTE TYPE

AU A18-24L

AFR : Air Flow Rate (m3/min)
TC : Total Capacity (kW)
SHC : Sensible Heat Capacity (kW)
PI : Power Input (kW)

- (01 - 10) -

CASSETTE TYPE

°CDB

°CWB

TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI

5.62 4.52 0.60 6.26 4.54 0.60 6.47 4.94 0.61 6.90 4.95 0.61 7.11 5.35 0.62 7.54 5.33 0.62 7.96 5.68 0.63

5.52 4.47 0.64 6.15 4.49 0.65 6.36 4.89 0.66 6.78 4.90 0.66 6.99 5.29 0.67 7.41 5.27 0.67 7.83 5.62 0.68

5.33 4.37 0.78 5.94 4.40 0.79 6.14 4.78 0.80 6.55 4.80 0.80 6.75 5.18 0.81 7.15 5.16 0.82 7.56 5.50 0.82

5.12 4.26 0.91 5.71 4.29 0.92 5.90 4.66 0.93 6.29 4.68 0.94 6.49 5.05 0.94 6.87 5.03 0.95 7.26 5.36 0.96

5.25 4.33 0.76 5.85 4.35 0.77 6.05 4.73 0.78 6.45 4.75 0.79 6.65 5.13 0.79 7.05 5.11 0.80 7.44 5.44 0.81

6.75 5.11 1.65 7.52 5.15 1.67 7.77 5.59 1.68 8.29 5.61 1.70 8.54 6.06 1.71 9.05 6.04 1.73 9.57 6.43 1.74

6.41 4.93 1.78 7.14 4.96 1.81 7.38 5.39 1.82 7.87 5.41 1.84 8.11 5.84 1.85 8.60 5.82 1.86 9.08 6.20 1.88

6.07 4.75 1.98 6.76 4.78 2.01 6.99 5.20 2.02 7.46 5.22 2.04 7.69 5.63 2.05 8.15 5.61 2.07 8.61 5.98 2.09

6.32 4.88 2.52 7.04 4.91 2.56 7.28 5.34 2.57 7.76 5.36 2.60 8.00 5.79 2.61 8.48 5.76 2.64 8.96 6.14 2.66

5.22 4.31 2.10 5.81 4.34 2.14 6.01 4.72 2.15 6.41 4.73 2.17 6.61 5.11 2.18 7.00 5.09 2.20 7.40 5.42 2.22

3.74 3.58 1.59 4.17 3.60 1.61 4.31 3.91 1.62 4.60 3.92 1.64 4.74 4.24 1.65 5.02 4.22 1.66 5.31 4.50 1.68

30

35

40

Outdoor temperature

°CDB

-10

0

5

10

15

20

46

25

19212312151618

AFR

15.5

Indoor temperature

18212325272932

°CDB

°CWB

TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI

5.62 4.52 0.60 6.26 4.54 0.60 6.47 4.94 0.61 6.90 4.95 0.61 7.11 5.35 0.62 7.54 5.33 0.62 7.96 5.68 0.63

5.52 4.47 0.64 6.15 4.49 0.65 6.36 4.89 0.66 6.78 4.90 0.66 6.99 5.29 0.67 7.41 5.27 0.67 7.83 5.62 0.68

5.33 4.37 0.78 5.94 4.40 0.79 6.14 4.78 0.80 6.55 4.80 0.80 6.75 5.18 0.81 7.15 5.16 0.82 7.56 5.50 0.82

5.12 4.26 0.91 5.71 4.29 0.92 5.90 4.66 0.93 6.29 4.68 0.94 6.49 5.05 0.94 6.87 5.03 0.95 7.26 5.36 0.96

5.25 4.33 0.76 5.85 4.35 0.77 6.05 4.73 0.78 6.45 4.75 0.79 6.65 5.13 0.79 7.05 5.11 0.80 7.44 5.44 0.81

6.75 5.11 1.65 7.52 5.15 1.67 7.77 5.59 1.68 8.29 5.61 1.70 8.54 6.06 1.71 9.05 6.04 1.73 9.57 6.43 1.74

6.41 4.93 1.78 7.14 4.96 1.81 7.38 5.39 1.82 7.87 5.41 1.84 8.11 5.84 1.85 8.60 5.82 1.86 9.08 6.20 1.88

6.07 4.75 1.98 6.76 4.78 2.01 6.99 5.20 2.02 7.46 5.22 2.04 7.69 5.63 2.05 8.15 5.61 2.07 8.61 5.98 2.09

6.16 4.72 2.52 6.86 4.74 2.56 7.10 5.16 2.57 7.57 5.17 2.60 7.80 5.59 2.61 8.27 5.57 2.64 8.74 5.93 2.66

5.09 4.17 2.10 5.67 4.20 2.14 5.86 4.56 2.15 6.25 4.58 2.17 6.44 4.94 2.18 6.83 4.92 2.20 7.22 5.25 2.22

3.65 3.48 1.59 4.06 3.50 1.61 4.20 3.80 1.62 4.48 3.81 1.64 4.62 4.12 1.65 4.90 4.10 1.66 5.17 4.37 1.68

AFR

15.5

46

25

30

35

40

Indoor temperature

Outdoor temperature

12

18

21

5

20

10

15

15

°CDB

-10

0

16

18

2729232532

231921

AU A18-24L

MODEL : AU A24L / AO A24L

MODEL : AU A24L / AO B24L

CASSETTE TYPE

AU A18-24L

AFR : Air Flow Rate (m3/min)
TC : Total Capacity (kW)
SHC : Sensible Heat Capacity (kW)
PI : Power Input (kW)

- (01 - 11) -

6-2. HEATING CAPACITY

TC PI TC PI TC PI TC PI TC PI

5.01 2.50 4.89 2.55 4.77 2.60 4.65 2.65 4.53 2.71

5.76 2.61 5.62 2.67 5.49 2.72 5.35 2.77 5.21 2.83

6.49 2.73 6.34 2.79 6.18 2.85 6.03 2.90 5.87 2.96

7.35 2.80 7.18 2.86 7.00 2.92 6.83 2.98 6.65 3.04

8.04 2.79 7.85 2.84 7.66 2.90 7.47 2.96 7.28 3.02

7.87 2.42 7.69 2.47 7.50 2.52 7.31 2.57 7.12 2.62

8.12 2.43 7.92 2.48 7.73 2.53 7.54 2.58 7.34 2.63

7.79 2.13 7.61 2.17 7.42 2.22 7.23 2.26 7.05 2.31

7.17 1.64 7.00 1.67 6.83 1.71 6.66 1.74 6.49 1.77

7.39 1.65 7.21 1.68 7.03 1.71 6.86 1.75 6.68 1.78

182022

24

AFR

13.3

°CDB

16

Outdoor temperature

°CDB

°CWB

-15

-16

-10

-11

-5

10

8

-7

0

-2

5

3

24

18

Indoor temperature

15

10

20

15

7

6

TC PI TC PI TC PI TC PI TC PI

5.01 2.50 4.89 2.55 4.77 2.60 4.65 2.65 4.53 2.71

5.76 2.61 5.62 2.67 5.49 2.72 5.35 2.77 5.21 2.83

6.49 2.73 6.34 2.79 6.18 2.85 6.03 2.90 5.87 2.96

7.06 2.80 6.89 2.86 6.72 2.92 6.55 2.98 6.38 3.04

7.72 2.79 7.54 2.84 7.35 2.90 7.17 2.96 6.99 3.02

7.56 2.42 7.38 2.47 7.20 2.52 7.02 2.57 6.84 2.62

7.79 2.43 7.61 2.48 7.42 2.53 7.23 2.58 7.05 2.63

7.48 2.13 7.30 2.17 7.12 2.22 6.94 2.26 6.77 2.31

6.89 1.64 6.72 1.67 6.56 1.71 6.39 1.74 6.23 1.77

7.09 1.65 6.92 1.68 6.75 1.71 6.58 1.75 6.42 1.78

182022

10

°CDB

°CWB

-15

24

-10

-5

16

AFR

°CDB

13.3

Outdoor temperature

0

-2

151820

7

24

-16

-11

-7

8

563

10

15

Indoor temperature

CASSETTE TYPE

AU A18-24L

This table is created using the maximum capacity.

MODEL : AU A18L, AU F18L / AO A18L

CASSETTE TYPE

AU A18-24L

MODEL : AU A18L, AU F18L / AO B18L

AFR: Air Flow Rate (m3/min)
TC : Total Capacity (kW)
PI : Power Input (kW)

- (01 - 12) -

CASSETTE TYPE

TC PI TC PI TC PI TC PI TC PI

6.15 2.84 6.01 2.90 5.86 2.96 5.72 3.01 5.57 3.07

6.92 3.03 6.75 3.09 6.59 3.15 6.42 3.22 6.26 3.28

7.64 3.02 7.45 3.08 7.27 3.14 7.09 3.20 6.91 3.27

8.59 3.00 8.38 3.06 8.18 3.12 7.97 3.18 7.77 3.25

9.54 3.02 9.31 3.08 9.09 3.14 8.86 3.20 8.63 3.27

9.55 2.69 9.33 2.74 9.10 2.80 8.87 2.86 8.64 2.91

9.87 2.69 9.63 2.75 9.40 2.80 9.16 2.86 8.93 2.92

8.97 2.07 8.76 2.12 8.54 2.16 8.33 2.20 8.11 2.25

8.23 1.63 8.03 1.66 7.84 1.69 7.64 1.73 7.45 1.76

8.52 1.62 8.32 1.66 8.12 1.69 7.92 1.73 7.71 1.76

AFR

15.5

°CDB

16

Outdoor temperature

°CDB

°CWB

3

7

6

10

182022

24

Indoor temperature

24

18

8

15

10

20

0

-2

15

-15

-5

-7

5

-16

-10

-11

TC PI TC PI TC PI TC PI TC PI

6.15 2.84 6.01 2.90 5.86 2.96 5.72 3.01 5.57 3.07

6.69 3.03 6.53 3.09 6.37 3.15 6.21 3.22 6.05 3.28

7.38 3.02 7.21 3.08 7.03 3.14 6.86 3.20 6.68 3.27

8.30 3.00 8.10 3.06 7.91 3.12 7.71 3.18 7.51 3.25

9.23 3.02 9.01 3.08 8.79 3.14 8.57 3.20 8.35 3.27

9.24 2.69 9.02 2.74 8.80 2.80 8.58 2.86 8.36 2.91

9.54 2.69 9.31 2.75 9.09 2.80 8.86 2.86 8.63 2.92

8.67 2.07 8.47 2.12 8.26 2.16 8.05 2.20 7.85 2.25

7.96 1.63 7.77 1.66 7.58 1.69 7.39 1.73 7.20 1.76

8.24 1.62 8.05 1.66 7.85 1.69 7.65 1.73 7.46 1.76

182022

10

°CDB

°CWB

-15

24

-10

-5

16

AFR

°CDB

15.5

Outdoor temperature

0

-2

151820

7

24

-16

-11

-7

8

563

10

15

Indoor temperature

AU A18-24L

MODEL : AU A24L / AO A24L

MODEL : AU A24L / AO B24L

CASSETTE TYPE

AU A18-24L

AFR: Air Flow Rate (m3/min)
TC : Total Capacity (kW)
PI : Power Input (kW)

- (01 - 13) -

7. FAN PERFORMANCE

7-1. AIR VELOCITY DISTRIBUTION

CASSETTE TYPE

AU A18-24L

MODEL : AU A18L, AU F18L

4-WAY AIR OUTLET

(m)

4

0.25

3

Unit : m/s

Note :

Condition

Fan speed : High
Operation mode : FAN
Ceiling mode : Standard

CASSETTE TYPE

AU A18-24L

2

1

0

1

0.25

0.5

1

2

0.5

1

2

1

2

1

0.5

2

2

0.5

0.25

3

0.25

4

4 3 2 1 0 1 2 3 4

(m)

3

Unit : m/s

TOP VIEW
HORIZONTAL LOUVER
: Upward

(m)

2

1

2

1

2

0.5

0.5

1

0.25

0

4 3 2 1 0 1 2 3 4

(m)

3

2

2

Unit : m/s

2

1

1

1

0.25

0.5

0.5

0.25

0

4 3 2 1 0 1 2 3 4

0.25

SIDE VIEW
HORIZONTAL LOUVER
: Upward

(m)

SIDE VIEW
HORIZONTAL LOUVER
: Downward

(m)

- (01 - 14) -

CASSETTE TYPE

AU A18-24L

3-WAY AIR OUTLET

(m)

4

3

0.25

0.5

Unit : m/s

Note :

Condition

Fan speed : High
Operation mode : FAN
Ceiling mode : Standard

CASSETTE TYPE

AU A18-24L

2

1

0.25

0

0.5

1 2

1

2

2

0.5

1

0.25

4 3 2 1 0 1 2 3 4

(m)

3

2

1

0.5

1

0.25

2 2

Unit : m/s

1

0.5

0.25

0

4 3 2 1 0 1 2 3 4

TOP VIEW
HORIZONTAL LOUVER
: Upward

(m)

SIDE VIEW
HORIZONTAL LOUVER
: Upward

(m)

(m)

3

2

2

Unit : m/s

2

1

1

0.25

0.5

1

0.5

0.25

0

4 3 2 1 0 1 2 3 4

SIDE VIEW
HORIZONTAL LOUVER
: Downward

(m)

- (01 - 15) -

CASSETTE TYPE

AU A18-24L

MODEL : AU A24L

4-WAY AIR OUTLET

(m)

4

3

0.25

0.5

Unit : m/s

Note :

Condition

Fan speed : High
Operation mode : FAN
Ceiling mode : Standard

CASSETTE TYPE

AU A18-24L

2

1

0

0.25

0.5

1

1

2

2

2

2

1

0.5

1

2

3

1

0.5

0.25

4

4 3 2 1 0 1 2 3 4

(m)

3

Unit : m/s

0.25

TOP VIEW
HORIZONTAL LOUVER
: Upward

(m)

2

2

0.5

1

2

1

0.5

1

0.25

0.25

0

4 3 2 1 0 1 2 3 4

(m)

3

2

2

Unit : m/s

2

1

1

1

0.25

0.5

0.5

0.25

0

4 3 2 1 0 1 2 3 4

SIDE VIEW
HORIZONTAL LOUVER
: Upward

(m)

SIDE VIEW
HORIZONTAL LOUVER
: Downward

(m)

- (01 - 16) -

CASSETTE TYPE

AU A18-24L

3-WAY AIR OUTLET

(m)

4

3

0.25

0.5

Unit : m/s

Note :

Condition

Fan speed : High
Operation mode : FAN
Ceiling mode : Standard

CASSETTE TYPE

AU A18-24L

2

1

1

0.25

0

0.5

1

2

2

2

0.5

1

0.25

4 3 2 1 0 1 2 3 4

(m)

3

2

2

1

2

1

0.5

0.25

Unit : m/s

1

0.5

0.25

0

4 3 2 1 0 1 2 3 4

TOP VIEW
HORIZONTAL LOUVER
: Upward

(m)

SIDE VIEW
HORIZONTAL LOUVER
: Upward

(m)

(m)

3

2

1

0.25

0

0.5

2

1

2

1

0.5

Unit : m/s

0.25

4 3 2 1 0 1 2 3 4

SIDE VIEW
HORIZONTAL LOUVER
: Downward

(m)

- (01 - 17) -

7-2. AIR FLOW

HIGH

730

MED

FAN SPEED

NUMBER OF

ROTATIONS

(r.p.m)

AIR FLOW

LOW

QUIET

630

540

460

FAN SPEED

NUMBER OF

ROTATIONS

(r.p.m)

AIR FLOW

HIGH

MED

LOW

QUIET

830

730

630

500

7-2-1. STANDARD CEILING MODE

CASSETTE TYPE

AU A18-24L

MODEL : AU A18L, AU F18L

COOLING

CASSETTE TYPE

AU A18-24L

HEATING

m3/h

l/s 189

CFM 400

m3/h

l/s 161

CFM 341

m3/h

l/s 136

CFM 288

m3/h

l/s 114

CFM 241

680

580

490

410

m3/h

l/s 222

CFM 471

m3/h

l/s 189

CFM 400

m3/h

l/s 161

CFM 341

m3/h

l/s 125

CFM 265

800

680

580

450

- (01 - 18) -

CASSETTE TYPE

FAN SPEED

NUMBER OF

ROTATIONS

(r.p.m)

AIR FLOW

HIGH

MED

LOW

QUIET

960

850

650

500

FAN SPEED

NUMBER OF

ROTATIONS

(r.p.m)

AIR FLOW

HIGH

MED

LOW

QUIET

960

880

740

580

AU A18-24L

MODEL : AU A24L

COOLING

CASSETTE TYPE

AU A18-24L

HEATING

m3/h

930

l/s 258

CFM 547

m3/h

830

l/s 231

CFM 488

m3/h

600

l/s 167

CFM 353

m3/h

450

l/s 125

CFM 265

m3/h

930

l/s 258

CFM 547

m3/h

860

l/s 239

CFM 506

m3/h

700

l/s 194

CFM 412

m3/h

530

l/s 147

CFM 312

- (01 - 19) -

7-2-2. HIGH CEILING MODE

FAN SPEED

NUMBER OF

ROTATIONS

(r.p.m)

AIR FLOW

HIGH

MED

LOW

QUIET

830

730

640

460

FAN SPEED

NUMBER OF

ROTATIONS

(r.p.m)

AIR FLOW

HIGH

MED

LOW

QUIET

930

830

730

500

CASSETTE TYPE

AU A18-24L

MODEL : AU A18L, AU F18L

COOLING

CASSETTE TYPE

AU A18-24L

HEATING

m3/h

l/s 222

CFM 471

m3/h

l/s 189

CFM 400

m3/h

l/s 164

CFM 347

m3/h

l/s 114

CFM 241

800

680

590

410

m3/h

l/s 250

CFM 530

m3/h

l/s 222

CFM 471

m3/h

l/s 189

CFM 400

m3/h

l/s 125

CFM 265

900

800

680

450

- (01 - 20) -

CASSETTE TYPE

FAN SPEED

NUMBER OF

ROTATIONS

(r.p.m)

AIR FLOW

HIGH

1050

MED

950

LOW

QUIET

750

500

FAN SPEED

NUMBER OF

ROTATIONS

(r.p.m)

AIR FLOW

HIGH

1030

MED

LOW

QUIET

980

840

580

AU A18-24L

MODEL : AU A24L

COOLING

CASSETTE TYPE

AU A18-24L

HEATING

m3/h

1030

l/s 286

CFM 606

m3/h

930

l/s 258

CFM 547

m3/h

710

l/s 197

CFM 418

m3/h

450

l/s 125

CFM 265

m3/h

1000

l/s 278

CFM 589

m3/h

960

l/s 267

CFM 565

m3/h

820

l/s 228

CFM 483

m3/h

530

l/s 147

CFM 312

- (01 - 21) -

8. OPERATION NOISE

8-1. NOISE LEVEL CURVE

CASSETTE TYPE

AU A18-24L

MODEL : AU A18L, AU F18L

COOLING

80

70

60

50

40

30

QUIET

20

Octave band sound pressure level, dB:(0dB=0.0002µbar)

10

HIGH

NC-65

NC-60

NC-55

NC-50

NC-45

NC-40

NC-35

NC-30

NC-25

NC-20

NC-15

HEATING

80

70

60

50

40

30

QUIET

20

Octave band sound pressure level, dB:(0dB=0.0002µbar)

10

Condition

Ceiling mode : Standard
Air outlet : 4-way air outlet

HIGH

NC-65

NC-60

NC-55

NC-50

NC-45

NC-40

NC-35

NC-30

NC-25

NC-20

NC-15

CASSETTE TYPE

AU A18-24L

0

63 125 250 500 1,000 2,000 4,000 8,000

Octave band center frequency,Hz

MODEL : AU A24L

COOLING

80

70

60

50

HIGH

40

30

QUIET

20

Octave band sound pressure level, dB:(0dB=0.0002µbar)

10

NC-65

NC-60

NC-55

NC-50

NC-45

NC-40

NC-35

NC-30

NC-25

NC-20

NC-15

0

63 125 250 500 1,000 2,000 4,000 8,000

Octave band center frequency,Hz

HEATING

80

70

60

50

HIGH

40

30

20

Octave band sound pressure level, dB:(0dB=0.0002µbar)

10

QUIET

NC-65

NC-60

NC-55

NC-50

NC-45

NC-40

NC-35

NC-30

NC-25

NC-20

NC-15

0

63 125 250 500 1,000 2,000 4,000 8,000

Octave band center frequency,Hz

- (01 - 22) -

0

63 125 250 500 1,000 2,000 4,000 8,000

Octave band center frequency,Hz

8-2. SOUND LEVEL CHECK POINT

CASSETTE TYPE

AU A18-24L

Microphone

CASSETTE TYPE

AU A18-24L

Microphone

- (01 - 23) -

9. ELECTRIC CHARACTERISTICS

CASSETTE TYPE

AU A18-24L

Model Name

Voltage V

Power Supply

Frequency Hz

Max Operating Current A 0.2 0.3

Circuit breaker A 0.3 0.4

*1)Wiring Spec.

Connection Cable

mm

Limited wiring length m 26 31

*1) Wiring Spec.
Selected Sample
(Selected based on Japan Electrotechnical Standard and Codes Committee E0005)

2

AU A18L
AU F18L

AU A24L

230

50

1.5-2.5 1.5-2.5

CASSETTE TYPE

AU A18-24L

- (01 - 24) -

10. SAFETY DEVICE

CASSETTE TYPE

AU A18-24L

Circuit protection Current fuse (PCB)

Protection form

AU A18L
AU F18L

Model

3.15A 250V

AU A24L

CASSETTE TYPE

AU A18-24L

Fan motor protection Thermal protection program

140±20°C OFF

110±20°C ON

- (01 - 25) -

11. OPTIONAL PARTS

CASSETTE TYPE

AU A18-24L

Exterior Summary

Parts name

Model No.

CASSETTE TYPE

AU A18-24L

Wired remote

controller

Decoration

panel

Air outlet

shutter plate

UTB- UD

UTG-UF A-F

UTR-YDZA

Unit control is performed by

wired remote controller

For AU A18L, AU A24LA

Ceiling dirt by discharged wind
was made difficult to cling by
reviewing the shape of the

LOUVER.

For AU A18L, AU A24LA

Air outlet shutter plate is installed
at the air outlet when 3-way
direction is performed.

For AU F18L, AU A24LB

Decoration

panel

Air outlet

shutter plate

UTG-UF B-F

UTR-YDZB

Ceiling dirt by discharged wind
was made difficult to cling by
reviewing the shape of the

LOUVER.

For AU F18L, AU A24LB

Air outlet shutter plate is installed
at the air outlet when 3-way
direction is performed.

- (01 - 26) -

R410A

OUTDOOR UNIT

2.

SINGLE TYPE :

AO A18LACL

AO A18LALL

AO A24LACL

AO A24LALL

D2D_AO004E/04

2008.04.08

1. SPECIFICATIONS

OUTDOOR UNIT

AO A18-24L

Type

Model name

Power source

Available voltage range

Starting current

Airflow

Fan

Sound pressure level

Heat exchanger type

Compressor

Refrigerant

Refrigerant oil

Enclosure

Dimensions
( H × W × D)

Weight kg(lb.)

Connection pipe

rate

Type × Q'ty

Motor output

Type × Q'ty

Motor output

Net

Gross

Net

Gross

Size mm

Method

Max. length

Max. height difference

Cooling

Heating

Cooling

Heating

Dimensions (H × W × D)

Fin pitch

Rows x Stages

Pipe type

Fin type

Type

Charge

Type

Material

Colour

Liquid

Gas

Cooling

Heating

A 7.7 10.0

m3/h

W 54 65

dB(A)

mm

W

g 1250 1700

mm

m

°COperation range

INVERTER HEATPUMP

AO A18LACL AO A24LACL
AO A18LALL AO A24LALL

230V 50Hz

198-264V 50Hz

2000 2470

1910 2470

Propeller × 1

50 52

50 53

546 × 876 × 18.2
546 × 842 × 18.2

1.30 1.40

2 × 26

Copper

Aluminium

Twin Rotary × 1

1100

R410A

POE

Steel sheet

Beige (10YR7.5/1.0NN)

578 × 790 × 300 578 × 790 × 315

648 × 910 × 380

40 (88) 44 (97)

44 (97) 48 (106)

Φ

6.35 (Φ 1/4 in.)

Φ

12.70 (Φ 1/2 in.)

Flare

25(chargeless : 15) 30(chargeless : 15)

15 20

-10 to 46

-15 to 24

546 × 866 × 18.2
546 × 832 × 18.2
504 × 589 × 18.2

2 × 26
1 × 24

Φ

15.88(Φ 5/8 in.)

OUTDOOR UNIT

AO A18-24L

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)

- (02 - 01) -

2. DIMENSIONS

MODELS : AO A18L, AO A24L

OUTDOOR UNIT

AO A18-24L

Top view

(Unit : mm)

OUTDOOR UNIT

AO A18-24L

Front view

Bottom view

MOUNTING POSITION

When there are obstacles at the
back or front sides.

Air flow

When there are obstacles at the
back, side(s), and top.

AO A18L AO A24L

Side view

When there are obstacles at the
back, side with the installation of
more than one unit.

600 - 1000

100 or more

600 or more

100 - 300

250 or more

(Service space)

300 or more

250 or more

250 or more

If the space is larger that is stated, the condition will be the same as that are no obstacles.

- (02 - 02) -

300 or more

3. REFRIGERANT CIRCUIT

OUTDOOR UNIT

AO A18-24L

OUTDOOR UNIT

AO A18-24L

- (02 - 03) -

4. WIRING DIAGRAMS

MODELS : AO A18L, AO A24L

OUTDOOR UNIT

AO A18-24L

OUTDOOR UNIT

AO A18-24L

- (02 - 04) -

5. CAPACITY COMPENSATION RATE FOR PIPE LENGTH
AND HEIGHT DIFFERENCE

MODEL : AO A18L

OUTDOOR UNIT

AO A18-24L

Height

difference H

(m)

Height

difference H

(m)

COOLING

1

Indoor unit is upper

than outdoor unit.

2

Indoor unit is under

than outdoor unit

HEATING

1

Indoor unit is upper

than outdoor unit.

2

Indoor unit is under

than outdoor unit

Pipe length (m)

5 7.5 10 15 20 25

15 - - -

10 - -

7.5 -

5

0 1.000 1.000 0.999 0.984 0.982 0.978

-5

-7.5 -

-10 - -

-15 - - -

15 - - -

10 - -

7.5 -

5

0 0.993 1.000 0.982 0.920 0.894 0.867

-5

-7.5 -

-10 - -

-15 - - -

0.992 0.992 0.991 0.976 0.974 0.970

1.000 1.000 0.999 0.984 0.982 0.978

5 7.5 10 15 20 25

0.993 1.000 0.982 0.920 0.894 0.867

0.988 0.995 0.977 0.916 0.889 0.862

0.988 0.987 0.972 0.970 0.966

1.000 0.999 0.984 0.982 0.978

1.000 0.982 0.920 0.894 0.867

0.993 0.975 0.913 0.887 0.860

0.983 0.968 0.966 0.962

0.999 0.984 0.982 0.978

Pipe length (m)

0.982 0.920 0.894 0.867

0.972 0.911 0.885 0.858

0.953 0.950 0.947

0.984 0.982 0.978

0.920 0.894 0.867

0.902 0.876 0.849

OUTDOOR UNIT

AO A18-24L

Indoor unit

H

Outdoor unit

Connection pipe

1

Indoor unit is upper than outdoor unit.

Height difference H

Outdoor unit

Connection pipe

2

Indoor unit is under than outdoor unit.

- (02 - 05) -

H

Indoor unit

MODEL : AO A24L

OUTDOOR UNIT

AO A18-24L

Height

difference H

(m)

Height

difference H

(m)

COOLING

1

Indoor unit is upper

than outdoor unit.

2

Indoor unit is under

than outdoor unit

HEATING

1

Indoor unit is upper

than outdoor unit.

2

Indoor unit is under

than outdoor unit

Pipe length (m)

5 7.5 10 15 20 25 30

20

10

7.5

5

0

-5

-7.5

-10

-20

- - - - 0.963 0.961 0.959

- - 0.984 0.981 0.979 0.977 0.975

- 0.988 0.988 0.985 0.983 0.981 0.979

0.992 0.992 0.992 0.989 0.987 0.985 0.983

1.000 1.000 1.000 0.997 0.995 0.993 0.991

1.000 1.000 1.000 0.997 0.995 0.993 0.991

- 1.000 1.000 0.997 0.995 0.993 0.991

- - 1.000 0.997 0.995 0.993 0.991

- - - - 0.995 0.993 0.991

Pipe length (m)

5 7.5 10 15 20 25 30

20 - - - -

10 - -

7.5 -

5

1.001 1.000 0.992 0.952 0.927 0.893 0.863

1.000 0.992 0.952 0.927 0.893 0.863

0.992 0.952 0.927 0.893 0.863

0.927 0.893 0.863

0 1.001 1.000 0.992 0.952 0.927 0.893 0.863

-5

-7.5 -

-10 - -

-20 - - - -

0.996 0.995 0.987 0.947 0.922 0.888 0.859

0.993 0.984 0.945 0.920 0.886 0.857

0.982 0.943 0.917 0.884 0.855

0.908 0.875 0.846

OUTDOOR UNIT

AO A18-24L

Indoor unit

H

Outdoor unit

Connection pipe

1

Indoor unit is upper than outdoor unit.

Height difference H

Outdoor unit

Connection pipe

2

Indoor unit is under than outdoor unit.

- (02 - 06) -

H

Indoor unit

6. ADDITIONAL CHARGE CALCULATION

20g/m

1700

R410A

1250

20g/m

R410A

MODEL : AO A18L

Refrigerant type

Refrigerant amount g

OUTDOOR UNIT

AO A18-24L

REFRIGERANT CHARGE

Pipe length m 15 20 25

Additional charge g 0 (Chargeless) +100 +200

MODEL : AO A24L

Refrigerant type

Refrigerant amount g

REFRIGERANT CHARGE

Pipe length m 15 20 25 30

Additional charge g 0 (Chargeless) +100 +200 +300

OUTDOOR UNIT

AO A18-24L

- (02 - 07) -

7. AIR FLOW

m3/h

2000

m3/h

1910

m3/h

2470

m3/h

2470

1050

NUMBER OF

ROTATIONS

(r.p.m)

NUMBER OF

ROTATIONS

(r.p.m)

NUMBER OF

ROTATIONS

(r.p.m)

NUMBER OF

ROTATIONS

(r.p.m)

860

820

1050

Airflow

Airflow

Airflow

Airflow

MODEL : AO A18L

COOLING

OUTDOOR UNIT

AO A18-24L

HEATING

l/s 556

CFM 1177

OUTDOOR UNIT

AO A18-24L

l/s 531

CFM 1124

MODEL : AO A24L

COOLING

l/s 686

CFM 1454

HEATING

l/s 686

CFM 1454

- (02 - 08) -

8. OPERATION NOISE

8-1. NOISE LEVEL CURVE

COOLING

OUTDOOR UNIT

AO A18-24L

MODEL : AO A18L

80

70

60

50

40

30

20

Octave band sound pressure level, dB:(0dB=0.0002µbar)

10

0

63 125 250 500 1,000 2,000 4,000 8,000

Octave band center frequency,Hz

NC-65

NC-60

NC-55

NC-50

NC-45

NC-40

NC-35

NC-30

NC-25

NC-20

NC-15

MODEL : AO A24L

80

70

60

50

40

30

20

Octave band sound pressure level, dB:(0dB=0.0002µbar)

10

0

63 125 250 500 1,000 2,000 4,000 8,000

Octave band center frequency,Hz

NC-65

NC-60

NC-55

NC-50

NC-45

NC-40

NC-35

NC-30

NC-25

NC-20

NC-15

OUTDOOR UNIT

AO A18-24L

HEATING

MODEL : AO A18L

80

70

60

50

40

30

20

Octave band sound pressure level, dB:(0dB=0.0002µbar)

10

NC-65

NC-60

NC-55

NC-50

NC-45

NC-40

NC-35

NC-30

NC-25

NC-20

NC-15

MODEL : AO A24L

80

70

60

50

40

30

20

Octave band sound pressure level, dB:(0dB=0.0002µbar)

10

NC-65

NC-60

NC-55

NC-50

NC-45

NC-40

NC-35

NC-30

NC-25

NC-20

NC-15

0

63 125 250 500 1,000 2,000 4,000 8,000

Octave band center frequency,Hz

- (02 - 09) -

0

63 125 250 500 1,000 2,000 4,000 8,000

Octave band center frequency,Hz

8-2. SOUND LEVEL CHECK POINT

OUTDOOR UNIT

AO A18-24L

OUTDOOR UNIT

AO A18-24L

- (02 - 10) -

9. ELECTRIC CHARACTERISTICS

Model Name AO A18L AO A24L

OUTDOOR UNIT

AO A18-24L

Voltage V

230

Power Supply

Frequency Hz

50

Max Operating Current A 15.0 16.2

Starting Current A 7.7 10.0

*1) Wiring Spec.

Main Fuse (Circuit breaker)
Current

Power Cable

A 20 20

mm

2

3.5 - 4.5

*2)Limited wiring length m 24 22

*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.

OUTDOOR UNIT

AO A18-24L

- (02 - 11) -

10. SAFETY DEVICES

AO A18L AO A24L

OFF:100

+15

-10

°C

ON:95

+15

-10

°C

OFF:110

+15

-10

°C

ON:105

+15

-10

°C

15A 250V

3.15A 250V

Compressor protection

Circuit protection

OFF:110°C

ON: After 40 minutes

OFF:110°C

ON: After 7 minutes

Current fuse (NEAR THE TERMINAL)

Current fuse

(MAIN PRINTED CIRCUIT BOARD)

Protection form

20A 250V

5A 250V

Model

OUTDOOR UNIT

AO A18-24L

Fan motor protection Thermal protection program

Thermal protection program
(COMPRESSOR TEMP.)

Thermal protection program
(DISCHARGE TEMP.)

OUTDOOR UNIT

AO A18-24L

- (02 - 12) -

R410A

D2D_AO021E/02

2008.04.08

2.

SINGLE TYPE :

AO B18LACL

AO B18LALL

OUTDOOR UNIT

AO B24LACL

AO B24LALL

- (02 - 01) -

OUTDOOR UNIT

AOB18-24L

OUTDOOR UNIT

AOB18-24L

1. SPECIFICATIONS

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)

Power source

Available voltage range

A 7.7 10.0

Cooling 2000 2470

Heating 1910 2470

Type × Q'ty

Motor output W 54 65

Cooling 50 52

Heating 50 53

Dimensions (H × W × D)

546 × 876 × 18.2
546 × 842 × 18.2

546 × 866 × 18.2
546 × 832 × 18.2
504 × 589 × 18.2

Fin pitch 1.30 1.40

Rows x Stages 2 × 26

2 × 26
1 × 24

Pipe type

Fin type

Motor output W

Charge g 1250 1700

Material

Colour

Net 578 × 790 × 300 578 × 790 × 315

Gross

Net 40 ( 88 ) 44 ( 97 )

Gross 44 ( 97 ) 48 ( 106 )

Liquid

Gas

Φ 12.70 (Φ 1/2 in.) Φ 15.88 (Φ 5/8 in.)

Method

Max. length 25(chargeless:15) 30(chargeless:15)

Max. height difference 15 20

Cooling

Heating

Flare

-10 to 46

-15 to 24

648 × 910 × 380

Φ 6.35 (Φ 1/4 in.)

Copper

Aluminium

Steel sheet

Beige (10YR7.5/1.0NN)

Twin Rotary × 1

1100

R410A

POE

INVERTER HEATPUMP

230V ~50Hz

198-264V ~50Hz

Propeller × 1

m

Connection pipe

Size mm

Starting current

Compressor

Type × Q'ty

Refrigerant

Type

Sound pressure level

Refrigerant oil Type

Enclosure

Heat exchanger type

mm

Weight kg(lb.)

Dimensions
( H×W×D)

°COperation range

Type

Model name

Fan

Airflow
rate

m3/h

dB(A)

mm

AO B18LACL AO B24LACL

AO B18LALL AO B24LALL

- (02 - 02) -

OUTDOOR UNIT

AOB18-24L

OUTDOOR UNIT

AOB18-24L

2. DIMENSIONS

MODEL : AO B18L, AO B24L

(Unit : mm)

(Unit : mm)

Air flow

Top view

When there are obstacles at the
back or front sides.

When there are obstacles at the
back, side(s), and top.

When there are obstacles at the
back, side with the installation of
more than one unit.

600 or more

250 or more

250 or more

300 or more

600 - 1000

100 or more

300 or more

100 - 300

250 or more

(Service space)

MOUNTING POSITION

Front view

AO B18L AO B24L

Side view

Bottom view

If the space is larger that is stated, the condition will be the same as that are no obstacles.

- (02 - 03) -

OUTDOOR UNIT

AOB18-24L

OUTDOOR UNIT

AOB18-24L

3. REFRIGERANT CIRCUIT

- (02 - 04) -

OUTDOOR UNIT

AOB18-24L

OUTDOOR UNIT

AOB18-24L

MODEL : AO B18L, AO B24L

4. WIRING DIAGRAMS

- (02 - 05) -

OUTDOOR UNIT

AOB18-24L

OUTDOOR UNIT

AOB18-24L

5. CAPACITY COMPENSATION RATE FOR PIPE LENGTH
AND HEIGHT DIFFERENCE

MODEL : AO B18L

Indoor unit

Height difference H

Connection pipe

H

Outdoor unit

Indoor unit

Connection pipe

H

Outdoor unit

Indoor unit is upper than outdoor unit.

1

Indoor unit is under than outdoor unit.

2

5 7.5 10 15 20 25

15 - - -

0.984 0.982 0.978

10 - -

0.999 0.984 0.982 0.978

7.5 -

1.000 0.999 0.984 0.982 0.978

5

1.000 1.000 0.999 0.984 0.982 0.978

0 1.000 1.000 0.999 0.984 0.982 0.978

-5

0.992 0.992 0.991 0.976 0.974 0.970

-7.5 -

0.988 0.987 0.972 0.970 0.966

-10 - -

0.983 0.968 0.966 0.962

-15 - - -

0.953 0.950 0.947

5 7.5 10 15 20 25

15 - - -

0.902 0.876 0.849

10 - -

0.972 0.911 0.885 0.858

7.5 -

0.993 0.975 0.913 0.887 0.860

5

0.988 0.995 0.977 0.916 0.889 0.862

0 0.993 1.000 0.982 0.920 0.894 0.867

-5

0.993 1.000 0.982 0.920 0.894 0.867

-7.5 -

1.000 0.982 0.920 0.894 0.867

-10 - -

0.982 0.920 0.894 0.867

-15 - - -

0.920 0.894 0.867

Height

difference H

(m)

1

Indoor unit is upper

than outdoor unit.

2

Indoor unit is under

than outdoor unit

Pipe length (m)

Pipe length (m)

HEATING

COOLING

1

Indoor unit is upper

than outdoor unit.

2

Indoor unit is under

than outdoor unit

Height

difference H

(m)

- (02 - 06) -

OUTDOOR UNIT

AOB18-24L

OUTDOOR UNIT

AOB18-24L

MODEL : AO B24L

Indoor unit

Height difference H

Connection pipe

H

Outdoor unit

Indoor unit

Connection pipe

H

Outdoor unit

Indoor unit is upper than outdoor unit.

1

Indoor unit is under than outdoor unit.

2

5 7.5 10 15 20 25 30

20

10

7.5

5

0

-5

-7.5

-10

-20

5 7.5 10 15 20 25 30

20 - - - -

0.908 0.875 0.846

10 - -

0.982 0.943 0.917 0.884 0.855

7.5 -

0.993 0.984 0.945 0.920 0.886 0.857

5

0.996 0.995 0.987 0.947 0.922 0.888 0.859

0 1.001 1.000 0.992 0.952 0.927 0.893 0.863

-5

1.001 1.000 0.992 0.952 0.927 0.893 0.863

-7.5 -

1.000 0.992 0.952 0.927 0.893 0.863

-10 - -

0.992 0.952 0.927 0.893 0.863

-20 - - - -

0.927 0.893 0.863

HEATING

COOLING

1

Indoor unit is upper

than outdoor unit.

2

Indoor unit is under

than outdoor unit

Height

difference H

(m)

Pipe length (m)

Pipe length (m)

Height

difference H

(m)

1

Indoor unit is upper

than outdoor unit.

2

Indoor unit is under

than outdoor unit

- - - - 0.963 0.961 0.959

- - 0.984 0.981 0.979 0.977 0.975

- 0.988 0.988 0.985 0.983 0.981 0.979

0.992 0.992 0.992 0.989 0.987 0.985 0.983

1.000 1.000 1.000 0.997 0.995 0.993 0.991

1.000 1.000 1.000 0.997 0.995 0.993 0.991

- 1.000 1.000 0.997 0.995 0.993 0.991

- - 1.000 0.997 0.995 0.993 0.991

- - - - 0.995 0.993 0.991

- (02 - 07) -

OUTDOOR UNIT

AOB18-24L

OUTDOOR UNIT

AOB18-24L

6. ADDITIONAL CHARGE CALCULATION

MODEL : AO B18L

REFRIGERANT CHARGE

MODEL : AO B24L

REFRIGERANT CHARGE

Refrigerant type

Refrigerant amount g

Pipe length m 15 20 25

Additional charge g 0 (Chargeless) +100 +200

Refrigerant type

Refrigerant amount g

Pipe length m 15 20 25 30

Additional charge g 0 (Chargeless) +100 +200 +300

20g/m

1700

R410A

1250

20g/m

R410A

- (02 - 08) -

OUTDOOR UNIT

AOB18-24L

OUTDOOR UNIT

AOB18-24L

MODEL : AO B18L

7. AIR FLOW

COOLING

HEATING

MODEL : AO B24L

COOLING

HEATING

m3/h

2000

l/s 556

CFM 1177

m3/h

1910

l/s 531

CFM 1124

m3/h

2470

l/s 686

CFM 1454

m3/h

2470

l/s 686

CFM 1454

1050

NUMBER OF

ROTATIONS

(r.p.m)

NUMBER OF

ROTATIONS

(r.p.m)

NUMBER OF

ROTATIONS

(r.p.m)

NUMBER OF

ROTATIONS

(r.p.m)

860

820

1050

Airflow

Airflow

Airflow

Airflow

- (02 - 09) -

OUTDOOR UNIT

AOB18-24L

OUTDOOR UNIT

AOB18-24L

8-1. NOISE LEVEL CURVE

COOLING

HEATING

8. OPERATION NOISE

MODEL : AO B18L

COOLING HEATING

MODEL : AO B24L

Octave band sound pressure level, dB:(0dB=0.0002µbar)

Octave band center frequency,Hz

0

10

20

30

40

50

60

70

80

63 125 250 500 1,000 2,000 4,000 8,000

NC-20

NC-40

NC-50

NC-60

NC-30

NC-15

NC-25

NC-35

NC-45

NC-55

NC-65

Octave band sound pressure level, dB:(0dB=0.0002µbar)

Octave band center frequency,Hz

0

10

20

30

40

50

60

70

80

63 125 250 500 1,000 2,000 4,000 8,000

NC-20

NC-40

NC-50

NC-60

NC-30

NC-15

NC-25

NC-35

NC-45

NC-55

NC-65

Octave band sound pressure level, dB:(0dB=0.0002µbar)

Octave band center frequency,Hz

0

10

20

30

40

50

60

70

80

63 125 250 500 1,000 2,000 4,000 8,000

NC-20

NC-40

NC-50

NC-60

NC-30

NC-15

NC-25

NC-35

NC-45

NC-55

NC-65

Octave band sound pressure level, dB:(0dB=0.0002µbar)

Octave band center frequency,Hz

0

10

20

30

40

50

60

70

80

63 125 250 500 1,000 2,000 4,000 8,000

NC-20

NC-40

NC-50

NC-60

NC-30

NC-15

NC-25

NC-35

NC-45

NC-55

NC-65

- (02 - 10) -

OUTDOOR UNIT

AOB18-24L

OUTDOOR UNIT

AOB18-24L

8-2. SOUND LEVEL CHECK POINT

- (02 - 11) -

OUTDOOR UNIT

AOB18-24L

OUTDOOR UNIT

AOB18-24L

9. ELECTRIC CHARACTERISTICS

*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.

Model name AO B18L AO B24L

Voltage V

Frequency Hz
Max. operating current A 15.0 16.2
Starting current A 7.7 10.0

Main fuse (Circuit breaker)

current

A 20 20

Power cable

mm

2

*2)Limited wiring length m 24 22

Power supply

*1) Wiring spec.

230

~

50

4.0

- (02 - 12) -

OUTDOOR UNIT

AOB18-24L

OUTDOOR UNIT

AOB18-24L

10. SAFETY DEVICES

AO B18L AO B24L

Fan motor protection Thermal protection program

OFF:100

+15

-10

°C

ON:95

+15

-10

°C

OFF:110

+15

-10

°C

ON:105

+15

-10

°C

Thermal protection program
(COMPRESSOR TEMP.)

Thermal protection program
(DISCHARGE TEMP.)

15A 250V

3.15A 250V

Compressor protection

Circuit protection

OFF:110°C

ON: After 40 minutes

OFF:110°C

ON: After 7 minutes

Current fuse (NEAR THE TERMINAL)

Current fuse

(MAIN PRINTED CIRCUIT BOARD)

Protection form

20A 250V

5A 250V

Model

REMOTE CONTROLLER

3. WIRED REMOTE CONTROLLER

UTB - UD

:

D2D_RC001E/02

2007.09.03

REMOTE CONTROLLER UTB- UD

FEATURES

Various timer setup (ON / OFF / WEEKLY) are possible.

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.

Economy operation are possible.

Easy installation with a slim shape with no bulge in the back.

The room temperature can be controlled by being detected the temperature
accurately with built-in thermo sensor.

Simple function setting

Setting of the air conditioner selection function is performed by remote controller.

High performance and compact size

REMOTE CONTROLLER UTB- UD

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

SUMOTUWETH FR SA

7

3126 9

15 18 21

24°C

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

Screen
after setup

Setup screen example
(Set from Sunday to Saturday: 12:00 to 15:00, 28 °C.)

0 3 6 9 12 15 18 21 Time

24°C

0 3 6 9 12 15 18 21 Time

28°C

3126 9

15 18 21

28°C

Easy-to-understand operation Simple 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 - 01) -

JIS box

REMOTE CONTROLLER UTB- UD

FUNCTIONS

2
6

7
8
9

10

11

Display panel

16

19

20

18

17

15

13

12

14

1

START/STOP button

Pressed to start and stop operation.

2

Set temperature button

Selects the setting temperature.

3

Master control button

Selects the operating mode(AUTO, HEAT, FAN, COOL, DRY).

4

1
3

4

5

Fan control button

Selects the fan speed (AUTO, QUIET, LOW, MED, HIGH).

5

Economy button

Turns the economy efficient mode on and off.

6

Timer mode (CLOCK ADJUST) button

Selects the timer mode (OFF TIMER, ON TIMER, WEEKLY TIMER)
Set the current time.

7

Day (DAY OFF) button

Temporarily cancels of one day timer.

8

Set back button

Pressed to select the set back timer.

9

Set time button

Pressed to set time.

10

Delete button

The schedule of a weekly timer is deleted.

11

Set button

Sets the date, hour, minute and on-off time.

12

Vertical airflow direction and swing button

Push for two seconds to change the swing mode.

13

Horizontal airflow direction and swing button

Push for two seconds to change the swing mode.

REMOTE CONTROLLER UTB- UD

DIMENSION

120

Front View

SPECIFICATION

21

[ Unit : mm ]

120

14

Filter button

15

Operation lamp

Lights during operation and when the timer is on.

16

Timer and clock display

17

17

Operation mode display

18

Fan speed display

19

Operation lock display

20

Temperature display

21

Function display

Defrost display

Thermo sensor display

Economy display

Vertical swing display

Horizontal swing display

Filter display

SIZE (H x W x D mm) 120 x 120 x 17

WEIGHT ( g ) 160

CABLE LENGTH ( m )

POWER ( V )

10

12

- (03 - 02) -