Fujitsu ARU9RLF Service manual

DESIGN & TECHNICAL MANUAL
INDOOR
OUTDOOR
AOU9RLFC
AOU12RLFC
AOU18RLFC
ARU9RLF
ARU12RLF
ARU18RLF
AIR CONDITIONER
Duct type

1. INDOOR UNIT
DUCT TYPE :
ARU9RLF
ARU12RLF
ARU18RLF
DTR_AR059E_01
2013.02.28

DUCT TYPE ARU9-18RLF DUCT TYPE ARU9-18RLF
CONTENTS
1. INDOOR UNIT
1. FEATURES.............................................................................................................. 01 - 01
3. SPECIFICATIONS.............................................................................................. 01 - 04
4. DIMENSIONS ........................................................................................................ 01 - 05
5. WIRING DIAGRAMS........................................................................................ 01 - 09
6. CAPACITY TABLE ............................................................................................ 01 - 10
6-1. COOLING CAPACITY ....................................................................................... 01 - 10
6-2. HEATING CAPACITY ........................................................................................ 01 - 12
7. FAN PERFORMANCE.................................................................................... 01 - 14
7-1. FAN PERFORMANCE CURVE........................................................................ 01 - 14
7-2. AIRFLOW ............................................................................................................ 01 - 20
8. OPERATION NOISE (SOUND PRESSURE)................................. 01 - 23
8-1. NOISE LEVEL CURVE...................................................................................... 01 - 23
8-2. SOUND LEVEL CHECK POINT ...................................................................... 01 - 25
9. ELECTRIC CHARACTERISTICS........................................................... 01 - 26
10. SAFETY DEVICES ............................................................................................ 01 - 27
11. EXTERNAL INPUT & OUTPUT............................................................... 01 - 28
11-1. EXTERNAL INPUT............................................................................................. 01 - 28
11-2. EXTERNAL OUTPUT ........................................................................................ 01 - 29
12. FUNCTION SETTINGS .................................................................................. 01 - 32
12-1. INDOOR UNIT..................................................................................................... 01 - 32
12-2. INDOOR UNIT (Setting by remote controller) ............................................ 01 - 34
12-3. WIRED REMOTE CONTROLLER ................................................................... 01 - 38
13. OPTIONAL PARTS ........................................................................................... 01 - 41
13-1. CONTROLLERS................................................................................................. 01 - 41
13-2. OTHERS .............................................................................................................. 01 - 41

- (01 - 01) -
DUCT TYPE ARU9-18RLF DUCT TYPE ARU9-18RLF
FEATURES1.
MODELS

ARU9RLF / AOU9RLFC
ARU12RLF / AOU12RLFC
ARU18RLF / AOU18RLFC
FEATURES

Energy saving
z
High energy saving was realized by converting indoor unit/outdoor unit fan motors and
compressor to all DC, and also by optimal design of the refrigerant cycle.
Slim design
z
The slim design allows installations where
ceilings are narrow.
Height
Drain pump built-in
7-25/32 in.
(198mm)
Drain port
Drain pump
Compact design
z
Condensate lift-up to 33-15/32 in. (850mm).
Max.
33-15/32 in.
(850mm)
Drain hose is standard accessory
Selectable with a wide range of
z
static pressure
By using DC fan motor, it is possible to
change the static pressure range from
0 to 0.36in. WG (0 to 90Pa).
The change of static pressure range is
possible by remote controller.
0
[in.WG (Pa)]
Airflow rate
Static pressure range
[CFM (m
3
/h)]
0.36(90)
Air - intake
z
Air intake direction can be selected to
match the installation site.
Bottom side Back side
Flexible installation
z
Ceiling concealed
Wall concealed
Filter (Accessory)
z
Filter : 2pcs.
ARU9RLF
ARU12RLF
ARU18RLF

- (01 - 02) -
DUCT TYPE ARU9-18RLF DUCT TYPE ARU9-18RLF
WIRED REMOTE CONTROLLER2.
FEATURES

High performance and compact size
z
Thermo
sensor
Individual
control
Weekly
timer
Setback
timer
Wired
remote
controller
Sensor part
Thermo sensor
display
Control part for
changing the
thermo sensor
Accurate and comfortable
z
Indoor temperature can be detected accurately by the inclusion of a
thermo sensor in the body of the wired controller.
Our system can correspond to various scenes.
This wired remote controller and the optional remote sensor allows
exibility in sensor location, and suitable for all requirements.
Built-in timers
z
Weekly timer Setback timer
Possible to set ON/OFF time to operate twice each day of the
week.
Possible to set temperature for two time spans and for each
day of the week.
At "Weekly timer" + "Set back timer" setup
76°F (24°C)
0 3 6 9 12 15 18 21 O'clock
12 3 6 9 12 3 6 9
time
AM PM
Easy-to-understand time bar display
Example : setup screen
(Set to Wednesday: 8:00 to 20:00.)
Screen
after setup
84°F (28°C)
0 3 6 9 12 15 18 21 O'clock
12 3 6 9 12 3 6 9
time
AM PM
Example : setup screen
(Set from Sunday to Saturday: 12:00 to 15:00, 28 °C.)
76°F 84°F 76°F 0 3 6 9 12 15 18 21 O'clock
12 3 6 9 12 3 6 9
time
AM PM
76°F (24°C) 84°F (28°C)
24°C 28°C 24°C
Easy-to-understand operation
z
[Variable timer control]
The operation/display sections are zoned according
to time and operation, enabling variable programming
to match application.
Simple installation
z
Components are compatible with standard switch
boxes. Flat back surface allows equipment to be
installed wherever it is needed.
Timer
area
Operation
area
European
switch box
JIS box
Various timer setup available (ON/OFF/WEEKLY).●
Equipped with weekly timer as standard function. ●
(Start/Stop function is twice per day for a week)
When setting up the timer, start/stop and temperature setup can●
be changed.
When a failure occurs, the error code is displayed.●
Error history.(Last 16 error codes can be accessed.)●
The room temperature can be controlled by detecting the●
temperature accurately with Built-in thermo sensor.

- (01 - 03) -
DUCT TYPE ARU9-18RLF DUCT TYPE ARU9-18RLF
FUNCTIONS

Display panel
DIMENSION

SPECIFICATION

15
11
10
9
8
21
3
5
14
4
12
13
6
7
17
16 18
19 20
21
4-23/32 (120)
4-23/32 (120)
4-23/32 (120)
23/32 (18)
Side ViewFront View
SIZE [H x W x D]: in.(mm) 4-23/32 x 4-23/32 x 23/32
(120 x 120 x 18)
WEIGHT oz. (g) 5.6 (160)
CABLE LENGTH ft. (m) 33 (10)
POWER (V) 12
1START/STOP button
Pressed to start and stop operation.
2SET TEMP. button
Selects the setting temperature.
3MODE button
Selects the operating mode (AUTO, HEAT, FAN, COOL, DRY).
4FAN button
Selects the fan speed (AUTO, QUIET, LOW, MED, HIGH).
5ECONOMY (THERMO SENSOR) button
Turns the economy efcient mode on and off.
6TIMER MODE (CLOCK ADJUST) button
Selects the timer mode (OFF TIMER, ON TIMER, WEEKLY
TIMER). Sets the current time.
7DAY (DAY OFF) button
Temporarily cancels one day timer.
8SET BACK button
Pressed to select the set back timer.
9Set time button
Pressed to set time.
10 TIMER DELETE button
Deletes the weekly timer schedule.
11 TIMER SET button
Sets the date, hour, minute and on-off time.
12  Verticalairowdirectionandswingbutton
Push for two seconds to change the swing mode.
13  Horizontalairowdirectionandswingbutton
Push for two seconds to change the swing mode.
14 FILTER RESET button
15 Operation lamp
Lights during operation and when the timer is on.
16 Timer and clock display
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
Functions will be different due to type of indoor unit.
For details, please see operation manual.
WIRING SPECIFICATIONS

Use Cable size Wire type Remarks
Remote controller cable 22AWG
(0.33 mm2)Polar 3 core Use sheathed PVC cable
[Unit : in. (mm)]

- (01 - 04) -
DUCT TYPE ARU9-18RLF DUCT TYPE ARU9-18RLF
SPECIFICATIONS3.
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.
Standard static pressure : 0.10in.WG (25Pa)
Pipe length : 24ft.7in (7.5m), Height difference:0 m. (Outdoor unit-Indoor unit)
The protective function may work when using it outside the operation range.
*: The maximum current is the maximum value when operated within the operation range.
Type DUCTED MODEL
INVERTER HEAT PUMP
Model name ARU9RLF ARU12RLF ARU18RLF
Power source 208 / 230V ~ 60Hz
Available boltage range 187 - 253V ~ 60Hz
Capacity
Cooling
Rated kW 2.64 3.52 5.28
Btu/h 9,000 12,000 18,000
Min - Max kW 0.90 - 3.60 0.90 - 4.00 0.90 - 5.90
Btu/h 3,100 - 12,000 3,100 - 13,600 3,100 - 20,100
Heating
Rated kW 3.52 4.69 6.33
Btu/h 12,000 16,000 21,600
Min - Max kW 0.90 - 5.28 0.90 - 5.70 0.90 - 7.50
Btu/h 3,100 - 18,000 3,100 - 19,400 3,100 - 25,600
Input power
Cooling Rated
kW
0.62 0.94 1.50
Max 1.40 1.45 2.15
Heating Rated 0.85 1.30 1.67
Max 1.80 2.00 2.60
Current Cooling Rated A3.0 4.4 6.6
Heating 3.9 6.0 7.3
EER Cooling kW/kW 4.25 3.74 3.52
Btu/hW 14.5 12.8 12.0
COP Heating kW/kW 4.14 3.60 3.79
Btu/hW 14.1 12.3 12.9
SEER Cooling Btu/hW 21.5 20.0 19.7
HSPF Heating Btu/hW 12.2 11.5 11. 3
Power factor Cooling %90 94 98
Heating 94 94 99
Moisture removal pints/h (l/h) 1.5 (0.7) 2.7 (1.3) 4.2 (2.0)
Maximum operating current * Cooling A9.3 9.4 10.0
Heating 10.8 10.9 14.0
Fan
Airow rate
Cooling
High
CFM
(m3/h)
353 (600) 383 (650) 554 (940)
Med 324 (550) 353 (600) 518 (880)
Low 294 (500) 324 (550) 483 (820)
Quiet 265 (450) 283 (480) 442 (750)
Heating
High 353 (600) 383 (650) 554 (940)
Med 324 (550) 353 (600) 518 (880)
Low 294 (500) 324 (550) 483 (820)
Quiet 265 (450) 283 (480) 442 (750)
Type × Q'ty Sirocco fan × 2 Sirocco fan × 3
Motor Output W 81 96
Recommended static pressure in. WG (Pa) 0 to 0.36 (0 to 90)
Sound pressure level
Cooling
High
dB (A)
28 29 32
Med 27 28 30
Low 26 27 29
Quiet 25 26 27
Heating
High 28 29 32
Med 26 28 30
Low 25 27 29
Quiet 24 24 27
Heat exchanger
Dimension
(H × W × D) in. (mm) 11-9/16 × 19-11/16 × 1-9/16
(294×500×39.9)
11-9/16 × 27-9/16 × 1-9/16
(294×700×39.9)
Fin pitch FPI 20
Rows × Stages 3 × 14
Pipe type Copper tube
Fin type Aluminum
Enclosure Material GALVANIZED STEEL SHEET
Color -
Dimensions
(H × W × D)
Net
in. (mm)
7-25/32 × 27-9/16 × 24-13/32
(198 × 700 × 620)
7-25/32 × 35-7/16 × 24-13/32
(198 × 900 × 620)
Gross 10-7/8 × 38-1/8 × 30-13/32
(276 × 968 × 772)
10-7/8 × 46 × 30-13/32
(276 × 1168 × 772)
Weight Net lb. (kg) 41 (19) 50 (23)
Gross 58 (26) 59 (27)
Connection pipe Size Liquid in. (mm) Ø1/4 (Ø6.35)
Gas Ø3/8 (Ø9.52) Ø1/2 (Ø12.7)
Method Flare
Operation range Cooling °F (°C) 64 to 90 (18 to 32)
%RH 80 or less
Heating °F (°C) 60 to 88 (16 to 30)
Remote controller type Wired [Wireless (option)]
Drain hose
Material HARD PVC
Size in. (mm) Ø3/4 (Ø20.7) (I.D.)
Ø1-1/16 (Ø26.6) (O.D.)

- (01 - 05) -
DUCT TYPE ARU9-18RLF DUCT TYPE ARU9-18RLF
DIMENSIONS4.
MODELS: ARU9RLF, ARU12RLF

Unit : in. (mm)
Rear view
View A
Top view Side view
Front view
Bottom view
(Drain hose)
Drain port
2 (51)
22-19/32 (574)
6-27/32 (174)
2-25/32 (71)
6 (152)
3-15/16 (100) x 6 = 23-5/8 (600)
3-7/32 (82)
1-7/8 (48)
25-19/32 (650)
28-29/32 (734)
1-3/16 (30)
14-27/32 (377)
6-9/16 (167)
4-11/16 (119)
3-1/2 (89)
3-1/16 (78)
2-5/32 (55)
1-27/32 (47)
13/32 (10)
24-13/32 (620)
14-19/32 (371)
10-13/32 (264)
5-21/32 (144)
2-23/32 (69)
25-19/32 (650)
26-5/32 (664)
27-9/16 (700)
1-11/16 (43)
25/32 (20)
7-25/32 (198)
6-5/8 (168)
5-15/16 (151)
3-1/16 (78) 2-5/32 (55)
ARU9, ARU12
Refrigerant pipe are
connection
Liquid Ø1/4 in. (Ø6.35 mm)
Gas Ø3/8 in. (Ø9.52 mm)
Drain hose connection Drain hose I.D. Ø3/4 in. , O.D. Ø1-1/16 in.

- (01 - 06) -
DUCT TYPE ARU9-18RLF DUCT TYPE ARU9-18RLF
MODEL : ARU18RLF

Rear view
View A
Top view
Side view
Front view
Bottom view
(Drain hose)
Drain port
2 (51)
30-15/32 (774)
6-27/32 (174)
2-25/32 (71)
6 (152)
3-7/16 (87)
2-7/32 (56)
33-15/32 (850)
36-25/32 (934)
3-15/16 (100) x 8 = 31-1/2 (800)
1-3/16 (30)
14-27/32 (377)
6-9/16 (167)
4-11/16 (119)
3-1/2 (89)
3-1/16 (78)
2-5/32 (55)
1-27/32 (47)
13/32 (10)
24-13/32 (620)
14-19/32 (371)
10-13/32 (264)
5-21/32 (144)
2-23/32 (69)
33-15/32 (850)
34-1/32 (864)
35-7/16 (900)
1-11/16 (43)
25/32
(20)
7-25/32 (198)
6-5/8 (168)
5-15/16 (151)
3-1/16 (78) 2-5/32 (55)
Unit : in. (mm)
ARU18
Refrigerant pipe are
connection
Liquid Ø1/4 in. (Ø6.35 mm)
Gas Ø1/2 in. (Ø12.70 mm)
Drain hose connection Drain hose I.D. Ø3/4 in. , O.D. Ø1-1/16 in.

- (01 - 07) -
DUCT TYPE ARU9-18RLF DUCT TYPE ARU9-18RLF
INSTALLATION PLACE

Left
side
Strong and durable ceiling
Indoor unit
Right
side
3-15/16 (100)
or more
11-13/16 (300)
or more Service access Ceiling
98-7/16 (2500) or more
(When no ceiling)
Floor
9-7/16 (240) or more
25/32 (20) or more
25/32 (20) or more
11-13/16 (300) or more
13/32 (10)
or less
13/32 (10)
or less
Left side
Strong and
durable floor
Right side
(PIPE side)
5-29/32
(150)
or more
3-15/16 (100)
or more
11-13/16 (300)
or more
Grille
Inlet air
Strong and
durable floor
25/32 (20)
or more
25/32 (20)
or more
5-29/32 (150)
or more
Left side
Strong and
durable floor
Right side
(PIPE side)
Duct
Grille
Inlet air
Strong and
durable floor
5-29/32
(150)
or more
3-15/16 (100)
or more
11-13/16 (300)
or more
25/32 (20)
or more
25/32 (20)
or more
5-29/32 (150)
or more
Unit : in. (mm)