General ARHA24LU, ARHA24LATU, AOHA24LACL, ARHF24LC, ARHF24LATU Technical Manual

R410A

INDOOR UNIT

1. DUCT

AR A24LATU

TYPE :

D2D_AR030E/04

2008.04.14

1. FEATURE

MODEL :

DUCT TYPE

AR A24L

INDOOR UNIT

OUTDOOR UNIT

AO A24LACL AO B24LACL

AR A24LATU

AO A24LALL AO B24LALL

FEATURES

Energy saving (AO A24LACL, AO A24LALL connection model)

High energy saving was realized by making the indoor unit and outdoor
unit fan motor and compressor all DC and optimal design of the refriger­ant cycle. Rank A was achieved in European energy rank.

Installation styles

Embedded in Ceiling

Hanging from Ceiling

DUCT TYPE

AR A24L

Slim & compact design

In the case of bottom suction type, as seen from lower rear part.

Control Box united with main unit

One-touch operating and easy-to-install
long-life filter (optional)

In addition to the slim height of 270 mm which is our sales point, further
com-pactification is attained by reducing 65 mm from the width with the
flanking control box embedded inside the chassis.

- (01 - 01) -

EASY MAINTENANCE

DUCT TYPE

AR A24L

In the case of rear suction type, as seen from lower rear part.

1

1. Control box

4

2. Fan casing

3. Fan

4. Motor

2

3

Bottom panel: 2 units

The motor and fan maintenance and dismounting can be made easily by removing
the rear panel and lower part of the casing with the main chassis installed.

Quiet mode

Operation at *25dB(A) possible by Quiet Mode.

* See our measurement conditions page (01-14).

DUCT TYPE

AR A24L

FUNCTION SETTING

Static pressure mode setting

Air flow, noise, etc. can be used under the optimum conditions by selecting
the static pressure mode matched to the installation conditions.

Room temperature adjustment correction

Suitable room temperature control is performed by changing the room tem­perature correction value by simple remote control operation to match the
conditions under which the air conditioner is installed.

Auto restart

The units restart automatically when the current was returned even when
there was a power interruption during operation.

- (01 - 02) -

2. REMOTE CONTROLLER

WIRED REMOTE CONTROLLER

DUCT TYPE

AR A24L

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.

DUCT TYPE

AR A24L

High performance and compact size

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

Screen
after setup

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.)

0 3 6 9 12 15 18 21 Time

24°C

0 3 6 9 12 15 18 21 Time

28°C

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

Timer
area

[

Variable timer control

]

Operation
area

The operation/display sections are zoned accord­ing to time and operation, enabling variable pro­gramming to match application.

- (01 - 03) -

needed.

European
switch box

JIS box

DUCT TYPE

AR A24L

FUNCTIONS

2
6
7
8
9

10

11

Display panel

16

19

20

18

17

15

13

12

14

DUCT TYPE

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.

AR A24L

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

*These functions are not available.

- (01 - 04) -

3. SPECIFICATIONS

DUCT TYPE

AR A24L

Type

Model name

Power source

Available voltage range

European energy label

Cooling

Capacity

Heating

Input power

Current

EER 3.21

COP 3.61
Moisture removal

Fan

Recommended static pressure Pa 30 to 150

Sound pressure level

Heat exchanger type

Enclosure

Dimensions
( H×W ×D )

Weight

Connection pipe

Operation range

Remote controller type

Drain pipe

Cooling

Heating

Cooling

Heating

Airflow
rate

Type × Q'ty Sirocco × 2

Motor output W 115

Net 270 × 1135 × 700

Gross 300 × 1300 × 790

Net 38 ( 84 )

Gross 45 ( 99 )

Size mm

Method 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) 294 × 1000 × 39.9

Fin pitch 1.40

Rows x Stages 3 × 14

Pipe type Copper

Fin type Aluminium

Material Steel

Colour

Liquid 6.35 ( 1 / 4 in.)

Gas 15.88 ( 5 / 8 in.)

Cooling

Heating °C 30 or less

Cooling A

Heating A

kW 7.10

BTU/h 24200

kW 0.90 - 8.00

BTU/h 3100 - 27300

kW 8.00

BTU/h 27300

kW 0.90 - 9.10

BTU/h 3100 - 31000

kW

A

kW/kW

l/h (pints/h) 2.5 (4.4)

High 1100

Med 950

Low 800

Quiet 600

Quiet 600

Quiet 25

Quiet 25

m3/h

High 1100

Med 950

Low 800

High 31

Med 29

Low 27

dB(A)

High 31

Med 29

Low 27

mm

mm

kg(lb.)

°C 18 to 32

%RH 80 or less

mm Outer diameter : 38.0 / Inner diameter : 36.0

DUCTED MODEL

INVERTER HEATPUMP

AR A24LATU

AO A24LACL, AO A24LALL

230V 50Hz

198-264V 50Hz

2.21

2.85

2.21

3.19

9.7

12.0

9.7

13.5

Wired

Steel

DUCT TYPE

AR A24L

Note :
Specifications are ased 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.
Standard static pressure :　30　Pa
Pipe length : 7.5 m, Height difference : 0 m.(Outdoor unit - Indoor unit)
Sound pressure level : Install a 2m duct to the outlet port and a 1m duct to the suction poit and measure.

＊　

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

- (01 - 05) -

DUCTED MODEL

INVERTER HEATPUMP

AR A24LATU

AO B24LACL, AO B24LALL

230V 50Hz

198-264V 50Hz

Cooling B

Heating B

kW 7.10

BTU/h 24200

kW 0.90 - 7.80

BTU/h 3100 - 26600

kW 8.00

BTU/h 27300

kW 0.90 - 8.80

BTU/h 3100 - 30000

2.32

2.85

2.33

3.19

10.1

12.0

10.2

13.5

EER 3.06

COP 3.43

l/h (pints/h) 2.5 (4.4)

High 1100

Med 950

Low 800

Quiet 600

High 1100

Med 950

Low 800

Quiet 600

Type × Q'ty Sirocco × 2

Motor output W 115

Recommended static pressure Pa 30 to 150

High 31

Med 29

Low 27

Quiet 25

High 31

Med 29

Low 27

Quiet 25

Dimensions (H × W × D) 294 × 1000 × 39.9

Fin ptich 1.40

Rows x Stages 3 × 14

Pipe type Copper

Fin type Aluminium

Material Steel

Colour

Net 270 × 1135 × 700

Gross 300 × 1300 × 790

Net 38 ( 84 )

Gross 45 ( 99 )

Liquid φ 6.35 (φ 1 / 4 in.)

Gas φ15.88 (φ 5 / 8 in.)

Method Flare

°C 18 to 32

%RH 80 or less

Heating °C 30 or less

Wired

Steel

mm Outer diameter 38.0 / Inner diameter 36.0

Operation range

Cooling

Remote controller type

Drain pipe

Material

Size

Weight kg(lb.)

Connection pipe

Size mm

Heat exchanger type

mm

Enclosure

Dimensions
( H×W ×D )

mm

Sound pressure level

Cooling

dB(A)

Heating

Fan

Airflow
rate

Cooling

m3/h

Heating

Cooling

kW/kW

Heating

Moisture removal

Current

Cooling

Rated

A

*Max.

Heating

Rated

*Max.

Input power

Cooling

Rated

kW

*Max.

Heating

Rated

*Max.

Capacity

Cooling

Rated

Min.-Max.

Heating

Rated

Min.-Max.

Type

Power source

Available voltage range

European energy label

Model name

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.
Standard static pressure :　30　Pa
Pipe length : 7.5 m, Height difference : 0 m.(Outdoor unit - Indoor unit)
Sound pressure level : Install a 2m duct to the outlet port and a 1m duct to the suction poit and measure.

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

- (01 - 06) -

DUCT TYPE

AR A24L

DUCT TYPE

AR A24L

4. DIMENSIONS

MODEL : AR A24L

DUCT TYPE

AR A24L

Front view

(Unit : mm)

DUCT TYPE

AR A24L

Side view (L)

Top view

Rear view

Side view (R)

Refrigerant piping flare connection (Gas)
Refrigerant piping flare connection (Liquid)
Drain piping connection
Drain piping connection with cap.
Knock out hole for fresh air.

- (01 - 07) -

DUCT TYPE

AR A24L

MOUNTING POSITION

MAINTENANCE HOLE

(Unit : mm)

DUCT TYPE

AR A24L

It shall be possible to install and remove
the control box.

WHEN USING A SQUARE DUCT

It shall be possible to install and remove
the control box, fan units and filter.

- (01 - 08) -

5. WIRING DIAGRAMS

MODEL : AR A24L

DUCT TYPE

AR A24L

DUCT TYPE

AR A24L

COIL

- (01 - 09) -

6. CAPACITY TABLE

-10

0

5

10

15

20

46

25

30

Outdoor temperature

°CDB

35

40

192123

AFR

18.3

Indoor temperature

18212325272932

121516

18

252032

2319211618

272923

°CDB

-10

0

5

10

15

AFR

18.3

Indoor temperature

18

21

Outdoor temperature

12

15

46

25

30

35

40

6-1. COOLING CAPACITY

DUCT TYPE

AR A24L

This table is created using the maximum capacity.

MODEL : AR A24L / AO A24L

°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 4.62 0.60 6.26 4.65 0.61 6.47 5.05 0.62 6.90 5.07 0.62 7.11 5.48 0.62 7.54 5.45 0.63 7.97 5.81 0.64

5.53 4.58 0.65 6.16 4.60 0.66 6.37 5.00 0.66 6.79 5.02 0.67 7.00 5.42 0.67 7.42 5.40 0.68 7.83 5.75 0.68

5.34 4.49 0.79 5.94 4.51 0.80 6.15 4.91 0.80 6.55 4.92 0.81 6.75 5.32 0.82 7.16 5.29 0.82 7.57 5.64 0.83

5.13 4.38 0.92 5.71 4.40 0.93 5.90 4.79 0.94 6.29 4.80 0.95 6.49 5.19 0.95 6.88 5.17 0.96 7.27 5.50 0.97

5.25 4.44 0.76 5.85 4.47 0.78 6.05 4.86 0.78 6.45 4.87 0.79 6.65 5.26 0.79 7.05 5.24 0.80 7.45 5.58 0.81

6.78 5.21 1.61 7.55 5.24 1.64 7.81 5.70 1.65 8.32 5.72 1.66 8.58 6.18 1.67 9.09 6.15 1.69 9.61 6.55 1.70

6.45 5.04 1.81 7.18 5.07 1.84 7.43 5.51 1.85 7.92 5.53 1.87 8.16 5.97 1.88 8.65 5.95 1.90 9.14 6.34 1.91

6.10 4.87 2.01 6.80 4.90 2.04 7.03 5.32 2.05 7.50 5.34 2.07 7.73 5.77 2.08 8.19 5.74 2.10 8.65 6.12 2.12

6.32 4.98 2.53 7.04 5.01 2.57 7.28 5.45 2.58 7.76 5.46 2.61 8.00 5.90 2.62 8.48 5.88 2.65 8.96 6.26 2.67

5.13 4.38 2.05 5.71 4.41 2.08 5.91 4.79 2.09 6.30 4.80 2.11 6.49 5.19 2.12 6.88 5.17 2.14 7.27 5.51 2.16

3.66 3.68 1.56 4.08 3.70 1.58 4.22 4.02 1.59 4.50 4.03 1.60 4.64 4.36 1.61 4.91 4.34 1.63 5.19 4.62 1.64

DUCT TYPE

AR A24L

MODEL : AR A24L / AO B24L

°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 4.62 0.60 6.26 4.65 0.61 6.47 5.05 0.62 6.90 5.07 0.62 7.11 5.48 0.62 7.54 5.45 0.63 7.97 5.81 0.64

5.53 4.58 0.65 6.16 4.60 0.66 6.37 5.00 0.66 6.79 5.02 0.67 7.00 5.42 0.67 7.42 5.40 0.68 7.83 5.75 0.68

5.34 4.49 0.79 5.94 4.51 0.80 6.15 4.91 0.80 6.55 4.92 0.81 6.75 5.32 0.82 7.16 5.29 0.82 7.57 5.64 0.83

5.13 4.38 0.92 5.71 4.40 0.93 5.90 4.79 0.94 6.29 4.80 0.95 6.49 5.19 0.95 6.88 5.17 0.96 7.27 5.50 0.97

5.25 4.44 0.76 5.85 4.47 0.78 6.05 4.86 0.78 6.45 4.87 0.79 6.65 5.26 0.79 7.05 5.24 0.80 7.45 5.58 0.81

6.78 5.21 1.61 7.55 5.24 1.64 7.81 5.70 1.65 8.32 5.72 1.66 8.58 6.18 1.67 9.09 6.15 1.69 9.61 6.55 1.70

6.45 5.04 1.81 7.18 5.07 1.84 7.43 5.51 1.85 7.92 5.53 1.87 8.16 5.97 1.88 8.65 5.95 1.90 9.14 6.34 1.91

6.10 4.87 2.01 6.80 4.90 2.04 7.03 5.32 2.05 7.50 5.34 2.07 7.73 5.77 2.08 8.19 5.74 2.10 8.65 6.12 2.12

6.16 4.81 2.53 6.86 4.84 2.57 7.10 5.26 2.58 7.57 5.28 2.61 7.80 5.70 2.62 8.27 5.68 2.65 8.74 6.05 2.67

5.00 4.24 2.05 5.57 4.27 2.08 5.76 4.64 2.09 6.14 4.65 2.11 6.33 5.03 2.12 6.71 5.01 2.14 7.09 5.33 2.16

3.57 3.58 1.56 3.98 3.60 1.58 4.11 3.91 1.59 4.38 3.93 1.60 4.52 4.24 1.61 4.79 4.22 1.63 5.06 4.50 1.64

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

- (01 - 10) -

6-2. HEATING CAPACITY

20

15

24

18

10

8

15

10

5

3

7

6

-5

-7

0

-2

Outdoor temperature

°CDB

°CWB

-15

-16

-10

-11

AFR

18.3

Indoor temperature

°CDB16182022

24

-10

Indoor temperature

-5

161820

22

°CDB

°CWB

-15

24

0

-2

151820

7

3

10

15

10

6

AFR

°CDB

18.3

24

-16

-11

-7

Outdoor temperature

8

5

DUCT TYPE

AR A24L

This table is created using the maximum capacity.

MODEL : AR A24L / AO A24L

TC PI TC PI TC PI TC PI TC PI

6.27 2.75 6.12 2.81 5.97 2.87 5.82 2.93 5.67 2.98

7.10 2.97 6.93 3.04 6.76 3.10 6.60 3.16 6.43 3.22

7.94 3.12 7.75 3.18 7.56 3.25 7.37 3.31 7.18 3.38

8.80 3.05 8.59 3.12 8.38 3.18 8.17 3.25 7.96 3.31

9.72 3.08 9.49 3.14 9.26 3.21 9.03 3.27 8.80 3.34

9.56 2.66 9.33 2.71 9.10 2.77 8.87 2.83 8.65 2.88

9.85 2.66 9.62 2.72 9.38 2.78 9.15 2.83 8.91 2.89

9.03 2.13 8.82 2.17 8.60 2.22 8.39 2.26 8.17 2.31

8.29 1.65 8.09 1.69 7.90 1.72 7.70 1.76 7.50 1.79

8.58 1.65 8.38 1.68 8.17 1.72 7.97 1.75 7.77 1.79

DUCT TYPE

AR A24L

MODEL : AR A24L / AO B24L

TC PI TC PI TC PI TC PI TC PI

6.27 2.75 6.12 2.81 5.97 2.87 5.82 2.93 5.67 2.98

7.10 2.97 6.93 3.04 6.76 3.10 6.60 3.16 6.43 3.22

7.94 3.12 7.75 3.18 7.56 3.25 7.37 3.31 7.18 3.38

8.51 3.05 8.31 3.12 8.10 3.18 7.90 3.25 7.70 3.31

9.40 3.08 9.18 3.14 8.95 3.21 8.73 3.27 8.51 3.34

9.24 2.66 9.02 2.71 8.80 2.77 8.58 2.83 8.36 2.88

9.53 2.66 9.30 2.72 9.07 2.78 8.85 2.83 8.62 2.89

8.73 2.13 8.53 2.17 8.32 2.22 8.11 2.26 7.90 2.31

8.02 1.65 7.83 1.69 7.64 1.72 7.44 1.76 7.25 1.79

8.30 1.65 8.10 1.68 7.90 1.72 7.71 1.75 7.51 1.79

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

- (01 - 11) -

7. FAN PERFORMANCE AND CAPACITY

Hi

Med

Low

Quiet

m3/h

- - - - - 1200 1100 1000

m3/h

- - - 980 915 830 - -

m3/h

- - 825 690 - - - -

m3/h

630 525 - - - - - -

Static pressure (Pa)

FAN SPEED

Hi

Med

Quiet

Low

7-1. NORMAL MODE

DUCT TYPE

AR A24L

MODEL : AR A24L

6 11 14 21 25 30 35 40

l/s - - - - - 333 306 278

CFM - - - - - 706 647 589

l/s - - - 272 254 231 - -

CFM - - - 577 539 489 - -

l/s - - 229 192 - - - -

CFM - - 486 406 - - - -

l/s 175 146 - - - - - -

CFM 371 309 - - - - - -

Q-h Characteristic curve

50

40

DUCT TYPE

AR A24L

30

20

10

0

500 600 700 800 900 1,000 1,100 1,200 1,300

AIR FLOW (m3/h)

102.0 15.0

100.0

98.0

96.0

94.0

Cooling capacity(%) STATIC PRESSURE(Pa)Heating capacity(%)

92.0
500 600 700 800 900 1,000 1,100 1,200 1,300

Air temp

Capacity

COOLING

AIR FLOW (m3/h)

HEATING

102.0 50.0

100.0

98.0

96.0

94.0

92.0
500 600 700 800 900 1,000 1,100 1,200 1,300

Air temp

Capacity

AIR FLOW (m3/h)

- (01 - 12) -

14.5

14.0

13.5

13.0

12.5

12.0

11.5

11.0

10.5

10.0

49.0

48.0

47.0

46.0

45.0

44.0

43.0

42.0

41.0

40.0

Air temperature(°C)Air temperature(°C)

7-2. HIGH STATIC MODE

Hi

Med

Low

Quiet

m3/h

- - - - - - 1200 1000

m3/h

- - - - 1000 815 - -

m3/h

- - 830 680 - - - -

m3/h

650 540 - - - - - -

Static pressure (Pa)

Quiet

Med

Hi

FAN SPEED

Low

7-2-1. MODE 1

DUCT TYPE

AR A24L

MODEL : AR A24L

20 23 30 35 40 47 55 65

l/s - - - - - - 333 278

CFM - - - - - - 706 589

l/s - - - - 278 226 - -

CFM - - - - 589 480 - -

l/s - - 231 189 - - - -

CFM - - 489 400 - - - -

l/s 181 150 - - - - - -

CFM 383 318 - - - - - -

70

60

Q-h Characteristic curve

DUCT TYPE

AR A24L

50

40

30

20

10

500 600 700 800 900 1,000 1,100 1,200 1,300

AIR FLOW (m3/h)

102.0 15.0

100.0

98.0

96.0

94.0

Cooling capacity(%) STATIC PRESSURE(Pa)Heating capacity(%)

92.0
500 600 700 800 900 1,000 1,100 1,200 1,300

Air temp

Capacity

COOLING

AIR FLOW (m3/h)

HEATING

102.0 50.0

100.0

98.0

96.0

94.0

92.0
500 600 700 800 900 1,000 1,100 1,200 1,300

Air temp

Capacity

AIR FLOW (m3/h)

- (01 - 13) -

14.5

14.0

13.5

13.0

12.5

12.0

11.5

11.0

10.5

10.0

49.0

48.0

47.0

46.0

45.0

44.0

43.0

42.0

41.0

40.0

Air temperature(°C)Air temperature(°C)

7-2-2. MODE 2

Hi

Med

Low

Quiet

m3/h

- - - - - - 1160 930

m3/h

- - - - 1020 800 - -

m3/h

- - 835 670 - - - -

m3/h

660 530 - - - - - -

Low

Static pressure (Pa)

FAN SPEED

Hi

Med

Quiet

DUCT TYPE

AR A24L

MODEL : AR A24L

110

100

90

80

70

35 37 50 55 68 75 93 100

l/s - - - - - - 322 258

CFM - - - - - - 683 547

l/s - - - - 283 222 - -

CFM - - - - 600 471 - -

l/s - - 232 186 - - - -

CFM - - 491 394 - - - -

l/s 183 147 - - - - - -

CFM 388 312 - - - - - -

Q-h Characteristic curve

DUCT TYPE

AR A24L

60

50

40

30

500 600 700 800 900 1,000 1,100 1,200 1,300

AIR FLOW (m3/h)

102.0 15.0

100.0

98.0

96.0

94.0

Cooling capacity(%) STATIC PRESSURE(Pa)Heating capacity(%)

92.0
500 600 700 800 900 1,000 1,100 1,200 1,300

Air temp

Capacity

COOLING

AIR FLOW (m3/h)

HEATING

102.0 50.0

100.0

98.0

96.0

94.0

92.0
500 600 700 800 900 1,000 1,100 1,200 1,300

Air temp

Capacity

AIR FLOW (m3/h)

- (01 - 14) -

14.5

14.0

13.5

13.0

12.5

12.0

11.5

11.0

10.5

10.0

49.0

48.0

47.0

46.0

45.0

44.0

43.0

42.0

41.0

40.0

Air temperature(°C)Air temperature(°C)

7-2-3. MODE 3

Hi

Med

Low

Quiet

m3/h

- - - - - - 1100 880

m3/h

- - - - 1000 810 - -

m3/h

- - 840 680 - - - -

m3/h

660 525 - - - - - -

Med

Hi

FAN SPEED

Low

Static pressure (Pa)

Quiet

DUCT TYPE

AR A24L

MODEL : AR A24L

150

140

130

120

110

100

90

80

70

60

50

500 600 700 800 900 1,000 1,100 1,200 1,300

102.0 15.0

100.0

98.0

96.0

94.0

Cooling capacity(%) STATIC PRESSURE(Pa)Heating capacity(%)

92.0
500 600 700 800 900 1,000 1,100 1,200 1,300

102.0 50.0

100.0

98.0

96.0

94.0

92.0
500 600 700 800 900 1,000 1,100 1,200 1,300

55 58 85 90 115 122 142 150

l/s - - - - - - 306 244

CFM - - - - - - 647 518

l/s - - - - 278 225 - -

CFM - - - - 589 477 - -

l/s - - 233 189 - - - -

CFM - - 494 400 - - - -

l/s 183 146 - - - - - -

CFM 388 309 - - - - - -

Q-h Characteristic curve

AIR FLOW (m3/h)

Air temp

Capacity

AIR FLOW (m3/h)

Air temp

Capacity

AIR FLOW (m3/h)

- (01 - 15) -

COOLING

HEATING

14.5

14.0

13.5

13.0

12.5

12.0

11.5

11.0

10.5

10.0

49.0

48.0

47.0

46.0

45.0

44.0

43.0

42.0

41.0

40.0

Air temperature(°C)Air temperature(°C)

DUCT TYPE

AR A24L

8. OPERATION NOISE

8-1. NOISE LEVEL CURVE

DUCT TYPE

AR A24L

MODEL : AR A24L

COOLING HEATING

80

Condition

Static pressure : 30Pa
Static mode : Normal

DUCT TYPE

AR 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

QUIET

Octave band center frequency,Hz

HIGH

NC-65

NC-60

NC-55

NC-50

NC-45

NC-40

NC-35

NC-30

NC-25

NC-20

NC-15

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

QUIET

Octave band center frequency,Hz

HIGH

NC-65

NC-60

NC-55

NC-50

NC-45

NC-40

NC-35

NC-30

NC-25

NC-20

NC-15

- (01 - 16) -

8-2. SOUND LEVEL CHECK POINT

DUCT TYPE

AR A24L

Microphone Microphone

DUCT TYPE

AR A24L

- (01 - 17) -

9. ELECTRIC CHARACTERISTICS

DUCT TYPE

AR A24L

Model Name AR A24L

DUCT TYPE

AR A24L

Power Supply

Voltage V 230

Frequency Hz 50

Max Operating Current A 0.7

*1)Wiring Spec.

Connection Cable

mm

2

1.5 - 2.5

Limited wiring length m 31

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

- (01 - 18) -

10. SAFETY DEVICES

140±20°C OFF

110±20°C ON

Protection form

DUCT TYPE

AR A24L

Circuit protection Current fuse (PCB) 3.15A 250V

Fan motor protection Thermal protection program

Model

AR A24L

DUCT TYPE

AR A24L

- (01 - 19) -

11. OPTIONAL PARTS

DUCT TYPE

AR A24L

Exterior Summary

Parts name

Square flange

Round flange

Long-life filter

507mm

Model No.

UTD-SF045T

UTD-RF204

UTD-LF25NA

Both the Square flange and
the Round flange can be
selected.

Round flange is also used
when the fresh air duct is
installed.

Long-life filter can be
mounted to the indoor unit.

DUCT TYPE

AR A24L

200mm

2000mm

Flexible duct

Remote sensor

External

control set

IR Receiver Unit

UTD-RD202

UTD-RS100

UTD-ECS5A

UTY - LRH 1

Connect to Round flange and
used at fan and fresh air ducts.

New amenity space can be
offered by installing the
Remote sensor in the remote
controller.

Use to connect with various
peripheral devices and air
conditioner PC board.

Unit control is performed by
wireless remote controller.

Drain Pump Unit

- (01 - 20) -

UTZ - PX1NBA

Optional drain lift up
mechanism allows more
flexible installation.

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