Fujitsu ASU18RLF Service-Handbuch

AIR CONDITIONER

Wall Mounted type

INDOOR

OUTDOOR

ASU18RLF

ASU24RLF

AOU18RLXFW

AOU24RLXFW

DESIGN & TECHNICAL MANUAL

1. INDOOR UNIT

WALL MOUNTED TYPE :

ASU18RLF

ASU24RLF

DTR_AS051E_02

2011.01.28

WALL MOUNTED TYPE

ASU18-24RLF

WALL MOUNTED TYPE

ASU18-24RLF

CONTENTS

1. INDOOR UNIT

1. FEATURE.................................................................................................................. 01 - 01

2. WIRELESS REMOTE CONTROLLER............................................... 01 - 04

3. SPECIFICATIONS.............................................................................................. 01 - 06

4. DIMENSIONS ........................................................................................................ 01 - 07

5. WIRING DIAGRAMS........................................................................................ 01 - 09

6. CAPACITY TABLE ............................................................................................ 01 - 10

6-1. COOLING CAPACITY...................................................................................... 01 - 10

6-2. HEATING CAPACITY........................................................................................01 - 11

7. FAN PERFORMANCE.................................................................................... 01 - 12

7-1. AIR VELOCITY DISTRIBUTION..................................................................... 01 - 12

7-2. AIR FLOW.......................................................................................................... 01 - 14

8. OPERATION NOISE......................................................................................... 01 - 16

8-1. NOISE LEVEL CURVE .................................................................................... 01 - 16

8-2. SOUND LEVEL CHECK POINT..................................................................... 01 - 17

9. ELECTRIC CHARACTERISTICS........................................................... 01 - 18

10. SAFETY DEVICES ............................................................................................ 01 - 19

11. EXTERNAL INPUT & OUTPUT............................................................... 01 - 20

11-1. EXTERNAL INPUT ........................................................................................... 01 - 20

11-2. EXTERNAL OUTPUT....................................................................................... 01 - 22

12. FUNCTION SETTING...................................................................................... 01 - 23

12-1. INDOOR UNIT (Setting by remote controller)........................................... 01 - 23

13. OPTIONAL PARTS ........................................................................................... 01 - 27

- (01 - 01) -

WALL MOUNTED TYPE

ASU18-24RLF

WALL MOUNTED TYPE

ASU18-24RLF

FEATURE1.

MODEL



ASU18RLF

ASU24RLF

FEATURES



High energy performance

z

MODEL

ASU18RLF ASU24RLF

Seasonal Energy Efciency Ratio (SEER) 19.2 18.0

Heating Seasonal Performance Factor (HSPF) BTU/hW 10.0 10.0

Energy Efcient Ratio (EER) 13.3 12.5

MEASUREMENT CONDITIONS

ANSI/ASHRAE STANDARD 37-1988

ALL DC

z

Front view

Large air flow and quiet

operation by new air

flow path

High efficiency

layout

More compact compared with conventional model

DC twin rotary compressor

aDC fan motor

DC fan motor

Super quiet

z

Air ow mode can be set in 4 steps and more detailed air ow setting is possible.

Easy maintenance

z

Easy maintenance and always clean. Troublesome maintenance has been made easy.

Since the front panel is easy to remove, maintenance is also easy.

MIN. HEAT Operation

z

The room temperature can be set to go no lower than 50°F,

thus ensuring that the room does not get too cold when not occupied

Caution)

When the room temperature is higher than 50°F, “MIN. HEAT” operation does not start. Operation starts and maintains the room temperature



•

at 50°F when the temperature drops below 50°F.

50°F

70°F

“MIN. HEAT”

Button ON

Indoor unit

operation START

“MIN. HEAT”

Button ON

- (01 - 02) -

WALL MOUNTED TYPE

ASU18-24RLF

WALL MOUNTED TYPE

ASU18-24RLF

Power diffuser

z

Adoption of large power diffuser

Outside air conditions:35.6o

F 60%

( F)

Operation contents: Heating,

Set temperature (Max set temp) o

8492 90 88 86

86 oF , Air flow Hi,

Vertical flap : Downward

Horizontal flap : Center

10 20 30 40 (ft)

(ft)

Power diffuser

(full open)

46o

“Strong vertical air ow” provides

powerful oor level heating.

“Healthy horizontal air ow” does not blow

cool air directly at the occupants in the room.

Power diffuser

Outside air conditions: 95

F 40%

( F)

Operation contents: Cooling,

Set temperature (Min set temp)

65 o

F , Air flow Hi, 6559 61 63

10 20 30 40 (ft)

(ft)

Vertical flap : Upward

Horizontal flap : Center

Low ambient outdoor temperature design (24Model)

z

Low ambient outdoor temperature design

Cooling 0 to 115 °F

Heating 0 to 75 °F

Corresponds to maximum 164feet (50m) long piping

z

- (01 - 03) -

WALL MOUNTED TYPE

ASU18-24RLF

WALL MOUNTED TYPE

ASU18-24RLF

Air conditioner lter features

z

Organic coating fin used

heat exchanger

Pre Filter

Antibacterial deodorizing

pre-filter with special

ceramic powder

Ion Deodorization Filter Apple-catechin Filter

Apple-

catechin Filter

Long-life Ion

Deodorization Filter

Economy operation

z

Example : Cooling operation

Economy operation is energy saving, as ●

the set temperature of indoor unit is shifted

by 2°F and the maximum electric value of

the outdoor unit is suppressed.

Temp.

Economy operation

Shift

setting

temp

Control maxmum current

Nomal operation Time

Set temperature

Blue n heat exchanger

z

Corrosion-resistance of the heat exchanger even in coastal areas has been improved by blue n

treatment of the outdoor unit heat exchanger.

Blue ﬁn heat exchanger

Cobalt Blue protection

Standard chromate protection

Aluminium base material

Hydrophilic coating

- (01 - 04) -

WALL MOUNTED TYPE

ASU18-24RLF

WALL MOUNTED TYPE

ASU18-24RLF

WIRELESS REMOTE CONTROLLER2.

FEATURES



Built-in timers

z

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

Program timer

z

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

Sleep timer

z

The sleep timer function automatically corrects the temperature thermostat setting according to the

time setting to prevent excessive cooling and heating while sleeping.

60min.

2°F (1°C) 4°F (2°C)

Timer setting

2°F (1°C) 4°F (2°C) 6°F (3°C) 8°F (4°C)

30min.

60min.

90min.

Timer setting

Cooling operation / dry operation

When the sleep timer is set, the set temperature

automatically rises 2°F (1°C) every hour. The set

temperature can rise up to a maximum of 4°F (2°C).

Heating operation

When the sleep timer is set, the set temperature

automatically drops 2°F (1°C) every 30 minutes. The

set temperature can drop to a maximum of 8°F (4°C).

Switching remote controller signal code

z

A B C D

A B CD

Mixed-up

I.U. I.U. I.U. I.U. I.U. I.U. I.U. I.U.

After code change

Code selector switch eliminates unit



•

being wrongly switched.

(Up to 4 codes can be set.)

*I.U.=Indoor unit

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

possible.

Can be used jointly with wired remote controllers .●

Easy to change custom code (4 patterns).●

- (01 - 05) -

WALL MOUNTED TYPE

ASU18-24RLF

WALL MOUNTED TYPE

ASU18-24RLF

FUNCTIONS



Display panel

Note: Functions will be different due to type of indoor unit.

For details, please see operation manual.

510

1MODE button

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

/Start / end R.C. custom code change. (Max 4 types)

2MIN.HEAT button

3SET TEMP. button ( / )

Set remote controller custom code buttons

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

4ECONOMY button

5SLEEP button

Pressed to select sleep timer.

6FAN button

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

7START/STOP button

Pressed to start and stop operation.

8SET button (Vertical)

Air ow direction vertical set button.

9SET button (Horizontal)

Air ow direction horizontal set button.

10 SWING button

Air ow direction swing button.

11 TIMER MODE button

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

PROGRAM TIMER, TIMER RESET)

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 Operating mode display

19 Sleep display

20 Transmit indicator

21 Fan speed display

22 Swing display

23 Timer mode display

24 Clock display

- (01 - 06) -

WALL MOUNTED TYPE

ASU18-24RLF

WALL MOUNTED TYPE

ASU18-24RLF

SPECIFICATIONS3.

Type WALL MOUNTED

INVERTER HEAT PUMP

Model name ASU18RLF ASU24RLF

Power source 208/230V ~ 60Hz

Available voltage range 187-253V ~ 60Hz

Capacity

Cooling

Rated kW 5.28 6.44

BTU/h 18,000 22,000

Min-Max kW 2.05 - 6.74 2.90 - 8.00

BTU/h 7,000 - 23,000 9,900 - 27,300

Heating

Rated kW 6.30 8.10

BTU/h 21,600 2 7, 6 0 0

Min-Max kW 2.05 - 8.50 2.20 - 10.61

BTU/h 7,000 - 29,000 7,500 - 36,200

Input power

Cooling Rated

1.35 1.76

Max 3.01 3.42

Heating Rated 1.80 2.38

Max 3.23 3.53

Current

Cooling Rated

6.2 7. 9

Max 13.5 15.0

Heating Rated 8.0 10.5

Max 14.5 15.5

EER Cooling kW/kW 3.90 3.66

BTU/hW 13.3 12.5

COP Heating kW/kW 3.50 3.40

BTU/hW 12.0 11.6

SEER Cooling BTU/hW 19.2 18.0

HSPF Heating BTU/hW 10.0 10.0

POWER FACTOR Cooling %95 97

Heating 98 99

Moisture removal pints/h (l/h) 5.9 (2.8) 6.3 (3.0)

Fan

Airow

rate

Cooling

High

CFM

(m3/h)

541 (920) 659 (1,120)

Med 435 (740) 530 (900)

Low 365 (620) 435 (740)

Quiet 306 (520) 365 (620)

Heating

High 541 (920) 677 (1,150)

Med 435 (740) 530 (900)

Low 365 (620) 435 (740)

Quiet 318 (540) 365 (620)

Type × Q'ty Cross ow fan × 1

Motor output W 64 64

Sound pressure level

Cooling

High

dB(A)

43 49

Med 37 42

Low 33 37

Quiet 28 33

Heating

High 44 49

Med 37 42

Low 33 37

Quiet 28 33

Heat exchanger type

Dimensions

(H × W × D) in. (mm) Main:15-7/8 x 33-3/4 x 1-1/16 (378×832×26.6)

Sub: 3-5/16 x 33-3/4 x 17/32 (84×832×13.3)

Fin pitch FPI Main:21, Sub:18

Rows x Stages Main:2×18, Sub:1×4

Pipe type Copper

Fin type Aluminium

Enclosure

Material Polystyrene

Color WHITE

Approximate color of MUNSELL N9.25/

Dimensions

( H×W×D )

Net mm 320×998×228

inch 12-5/8×39-1/4×9

Gross mm 319×1090×429

inch 12-3/5×42-15/16×16-7/8

Weight Net lbs. (kg) 31 (14)

Gross 40 (18)

Connection pipe Size Liquid in. (mm) Ø 3/8 (Ø 9.52)

Gas Ø 5 /8 (Ø 15.88)

Method Flare

Operation range Cooling °F (°C) 64 to 90 (18 to 32)

%RH 80 or less

Heating °F (°C) 88 (30) or less

Remote controller type Wireless

Drain pipe

Material PVC

Size mm

(Reference in.)

Outer diameter: 28 (1-3/32)

Inner diameter: 16 (5/8) .

Note :

Specications are based on the following conditions.

Cooling : Indoor temperature of 80°F (26.67°C)DB / 67°F (19.44°C)WB, and outdoor temperature of 95°F (35°C)DB / 75°F (23.9°C)WB.

Heating : Indoor temperature of 70°F (21.11°C)DB / 59°F (15°C)WB, and outdoor temperature of 47°F (8.33°C)DB / 43°F (6.11°C)WB.

Pipe length : 24.6ft(7.5m) [Outdoor unit - Indoor unit], Height difference : 0ft. (0m) [Outdoor unit - Indoor unit]

- (01 - 07) -

WALL MOUNTED TYPE

ASU18-24RLF

WALL MOUNTED TYPE

ASU18-24RLF

DIMENSIONS4.

MODEL

 : ASU18RLF, ASU24RLF

Unit : in (mm)

ASU18RLF ASU24RLF

Refrigerant pipe are

connection

Liquid *ø 1/4 in. (6.35 mm) *ø 1/4 in. (6.35 mm)

Gas *ø 1/2 in. (12.70 mm) ø 5/8 in. (15.88 mm)

Drain hose connection Drain hose I.D. 15/32 in. (12 mm) , O.D. 5/8 in. (16 mm)

Drain hose : L=26-3/8 in. (670mm)

* When connecting to a connection pipe, an adapter provided as accessory along with the outdoor unit is required.

ASU18RLF ASU24RLF

Connection pipe Liquid ø 3/8 in. (ø 9.52 mm)

Gas ø 5/8 in. (ø 15.88 mm)

39-9/32 (998)

17-9/32 (439)

17-1/4 (438) 15-5/8 (397)

12-19/32 (320): Unit size

10-19/32 (269)

25/32 (20)

1-15/32 (37)

1-1/32 x 7/16 (26 x 11) hole

6/32 x 23/32 (5 x 18): 14holes

13/16 x 6/32 (21 x 5): 14holes

6/32 x 1-31/32 (5 x 50): 3holes

1/2 x 6/32 (13 x 5): 4holes

ø3-5/32 (80) hole

ø6/32 (5): 65holes

39-3/8 (1000): Unit size

Piping inlet

for tapping screw

23/32 x 7/16 (18 x 11) hole

4-13/16 (122) 6-25/32 (172)

2-15/16 (75)

15-1/4 (387)

6-11/16 (170)

5/8 (16)

15-3/4 (400)

Unit center

4-31/32 (126)

5-1/4 (133)

5-1/8 (130)

4-7/16 (113)

2-15/16 (75)

9-9/16 (243)

8-31/32

(228)

12-19/32 (320)

20-15/32 (520)

23-7/32 (590)

28-3/8 (721)

ø3-5/32 (80) hole

Piping inlet

1-6/32 (30)

5-7/8 (149)

7-3/4 (197)

10-23/32 (272)

1-23/32 (44)

15/32

(12)

1/2 (13)

1-1/32 x 7/16 (26 x 11) hole

1 (25)

ø1-1/4 (32)

ø5/8 (16)

ø15/32 (12)

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