Fujitsu AUU18RCLX, AUU24RCLX Service manual
R410A
2 . CASSETTE TYPE :
AUU18RCLX
AUU24RCLX
D2D_AU019E/03
2007.06.11
2-1. FEATURE
MODELS :
AUU18RCLX / AOU18RLX
AUU24RCLX / AOU24RLX
CASSETTE TYPE
AUU18-24R
FEATURES
Easy maintenance
The control box is easily accessible for maintenance work
Wide opening for easy access.
Detachable,washable filter and intake grille.
Wide opening and long-life filter.
Long-life filter
High efficiency, long-life filter extends the cleaning cycle.
CASSETTE TYPE
AUU18-24R
Slim intake grille
Slim type intake grille can fit the ceiling after installation.
25/32
(20)
unit: in.(mm)
Group controller
One remote controller can control up to 16 air conditioners.
All of the air conditioners will be operated with the same settings.
Long-life filter
Connectable quantity : Maximum 16 indoor units for 1 remote controller.
- (02 - 01) -
Duct connection hole opening
Fresh air can be introduced through this opening.
Distribution
duct
CASSETTE TYPE
AUU18-24R
Fresh air
CASSETTE TYPE
AUU18-24R
Distribution
duct
Conditioned air can be distributed by means of a distribution duct.
Two-way
One-way
- (02 - 02) -
2-2. REMOTE CONTROLLER
2-2-1. WIRED REMOTE CONTROLLER
FEATURES
Various timer setup (ON / OFF / WEEKLY) are possible.
SUMOTUWETH FR SA
AM
7
3126 9
F
15 18 21
Equipped with weekly timer as standard function.
(2 times Start / Stop per day for a week)
CASSETTE TYPE
AUU18-24R
When setting up a timer, operation mode and a temperature
CASSETTE TYPE
AUU18-24R
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.)
Easy installation with a slim shape with no boldge in the back.
Built in room temperature sensor.
High performance and compact size
Three functions are combined in
one unit.
Wired
remote
controller
Weekly
timer
Setback
timer
Built-in timers
Setback timerWeekly timer
Possible to set ON/OFF time to operate twice each day
of the week.
SUMOTUWETH FR SA
7
PM
3126 9
15 18 21
Setup screen example
[Set to Wednesday: AM8:00 to PM8:00,75 °F(24 °C)]
Easy-to-understand time bar display
SUMOTUWETH FR SA
AM
7
3126 9
15 18 21
F
Screen
after setup
75°F (24°C)
Possible to set temperature for two time spans and
for each day of the week.
SUMOTUWETH FR SA
PM
3126 9
15 18 21
Setup screen example
[Set from Sunday to Saturday: PM12:00 to PM3:00, 82°F(28 °C)]
82°F (28°C)
F
0 3 6 9 12 15 18 21
time O'clock time O'clock
12 3 6 9 12 3 6 9
AM PM
At "Weekly timer" + "Set back timer" setup
75°F 82°F 75°F
(24°C 28°C 24°C)
0 3 6 9 12 15 18 21
time O'clock
12 3 6 9 12 3 6 9
0 3 6 9 12 15 18 21
12 3 6 9 12 3 6 9
AM PM
75°F (24°C)
82°F (28°C)
AM PM
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
JIS box
- (02 - 03) -
FUNCTIONS
1
START/STOP button
Pressed to start and stop operation.
2
Display
SUMOTUWETH FR
SA
AM
PM
369
12 15 18 21
CASSETTE TYPE
AUU18-24R
10
11
12
2
7
8
9
CLOCK ADJUST
SET BACK
DELETE SET
DAY OFF
F
14
DAY
ENERGY
THERMO
SAVE
SENSOR
1
3
4
6
5
13
Display panel
15
SUMOTUWETH FR
AM
PM
369
12 15 18 21
SA
F
16
1718 19
202122 23
Set Temperature button
Selects the setting temperature.
3
Master control button
Selects the operating mode(AUTO, HEAT, FAN, COOL, DRY).
4
Fan control button
Selects the fan speed (AUTO, LOW, MED, HIGH).
5
Energy save button
Turns the energy efficient mode on and off.
6
Thermo sensor button
Selects whether the room temperature is detected at the
indoor unit (remote sensor) or the remote controller.
7
Timer mode (CLOCK ADJUST) button
Selects the timer mode (OFF TIMER, ON TIMER, WEEKLY TIMER)
Set the current time.
8
Day (DAY OFF) button
Temporarily cancels of one day timer.
9
Set back button
pressed select the set back timer.
10
Set time button
Pessed to select the set back timer.
Delete button
11
The schedule of a weekly timer is deleted.
CASSETTE TYPE
AUU18-24R
SPECIFICATION
12
Set button
Sets the date, hour, minute and on-off time.
13
Vertical air flow direction and swing button
Push for two seconds to change the swing mode
14
Operation lamp
Lights during operation and when the timer is on.
15
Timer and clock display
16
Operation mode display
17
Fan speed display
Central control display
18
19
Temperature display
20
Stand by display
Indicates during defrosting operation.
21
Vertical swing display
22
Energy save display
23
Thermo sensor display
SIZE [H x W x D in. (mm)] 4-23/32 x 4-23/32 x 43/64 (120 x 120 x 17)
WEIGHT oz. (g) 5-21/35 (160)
CABLE LENGTH ft.( m )
POWER ( V )
33 (10)
12
- (02 - 04) -
2-3. SPECIFICATIONS
AUU24RCLX
AOU24RLX
Rows x Stages
Fin Pitch
FPI
Rows x Stages
Fin Pitch
FPI
1/4 (6.35) 3/8 (9.52)
1/2 (12.70) 5/8 (15.88)
lb. (Kg)
GROSS
154 (70)
DRAIN PIPE
SIZE
Inner diameter 32.0 (1 - 1/4)
REFRIGERANT
TYPE
REFRIGERANT OIL
TYPE
POWER SOURCE
AVAILABLE VOLTAGE RANGE
CAPACITY
COOLING
RATED/MAX
HEATING
RATED/MAX
TYPE
MODEL NAME
INDOOR
OUTDOOR
INPUT POWER
kW
CURRENT
A
STARTING CURRENT
MOISTURE REMOVAL
AIR
CIRCULATION
COOL/HEAT
INDOOR
CFM(m3/h)
OUTDOOR
FAN SPEED
COOL/HEAT
INDOOR
r.p.m
OUTDOOR
FAN TYPE x Q'ty
FAN MOTOR OUTPUT
W
NOISE LEVEL
(SOUND
PRESSURE)
COOL/HEAT
INDOOR
dB(A)
OUTDOOR
COMPRESSOR
TYPE
STARTING METHOD
HEAT
EXCHANGER
TYPE
INDOOR
Coil
Fin
OUTDOOR
Coil
Fin
CASING COLOR
DIMENSIONS
H × W × D
in. (mm)
PIPE
CONNECTION METHOD
SIZE
in. (mm)
MAX LENGTH
MAX HEIGHT
NET
OPERATION(OUTDOOR)
°F (°C)
REMOTE CONTROLLER TYPE
MATERIAL
GROSS
WEIGHT
NET
CASSETTE MODELS
INVERTER HEAT PUMP
208/230V 60Hz
187-253V 60Hz
TURBO × 1
PROPELLER × 1
42
100
DC TWIN ROTARY (INVERTER)
1300
Inverter
Copper tube
Aluminium
2 × 10
20
8 - 9/32 × 38 - 3/16 × 1-1/16 (210 × 970 × 26.6) [× 2 pieces]
Copper tube
Aluminium
2 × 38
20
31 - 13/32 × 35 - 7/16 × 1 - 7/16 (798 × 900 × 36.38)
White (5Y9/0.5NN)
Beige (10YR7.5/1.0NN)
9 - 11/16 × 32 - 11/16 × 32 - 11/16 (246 × 830 × 830)
32 - 11/16 × 35 - 7/16 × 13 (830 × 900 × 330)
13 - 31/32 × 41 - 23/32 × 40 - 11/32 (355 × 1060 × 1025)
38 - 3/16 × 41 - 11/32 × 17 - 17/32 (970 × 1050 × 445)
75 (34)
141 (64)
97 (44)
FLARE
164 (50) [chargeless:49 (15)]
66 (20)
R410A
WIRED
ABS
Outer diameter 37.0 (1 - 15/32)
4lb. 3oz. (1900)
POE
0 to 115 (-18 to 46)
14 to 75 (-10 to 24)
CASSETTE TYPE
AUU18-24R
SEER COOLING 16.0 15.0
HSPF HEATING 8.5 8.5
COOLING RATED/MAX 1.61 / 2.88 2.10 / 2.88
HEATING RATED/MAX 2.05 / 2.88 2.37 / 2.88
COOLING RATED/MAX 7.0 / 12.5 9.2 / 12.5
HEATING RATED/MAX 8.9 / 12.5 10.4 / 12.5
High 559 / 495 (950 / 840) 618 / 548 (1050 / 930)
Med 477 / 424 (810 / 720) 536 / 465 (910 / 790)
Low 394 / 365 (670 / 620) 435 / 395 (740 / 670)
Quiet - -
High 1942 / 1942 (3300 / 3300) 2119 / 2237 (3600 / 3800)
Low - -
High 450 / 400 490 / 440
Med 390 / 350 430 / 380
Low 330 / 310 360 / 330
Quiet - -
High 780 / 780 850 / 900
Low - -
INDOOR
OUTDOOR
INDOOR
OUTDOOR
High 42.0 / 40.0 45.0 / 43.0
Med 39.0 / 38.0 43.0 / 39.0
Low 36.0 / 36.0 38.0 / 35.0
AUU18RCLX
AOU18RLX
kW 5.20 / 6.30 6.50 / 8.00
BTU/h 17,800 / 21,500 22,200 / 27,300
kW 6.15 / 7.50 7.10 / 8.50
BTU/h 21,000 / 25,600 24,200 / 29,000
A 8.4 9.5
pints/h( l/h ) 5.3 (2.5) 6.4 (3.0)
51.0 / 53.0 53.0 / 55.0
CASSETTE TYPE
AUU18-24R
OUTPUT W
Coil Dimensions
Coil Dimensions
INDOOR
OUTDOOR
INDOOR
OUTDOOR
INDOOR
OUTDOOR
INDOOR
OUTDOOR
INDOOR
OUTDOOR
LIQUID
GAS
CHARGE lb. oz. (g)
COOLING
HEATING
in. (mm)
in. (mm)
ft. (m)
ft. (m)
Note:
Specifications are based on the following conditions.
Power source of specifications : 230V
Cooling:Indoor temperature of 80.6 °
Heating:Indoor temperature of 68.0 °F(20°C)DB / 59.0 °F(15°C)WB,and outdoor temperature of 44.6 °F(7°C)DB/42.8 °F(6°C)WB.
Pipe length : 24ft. 7in.(7.5m),Height difference : 0 ft.(0m) [Outdoor unit - Indoor unit]
mm
(Reference in.)
F
(27°C)DB / 66.2 °F(19°C)WB,and outdoor temperature of 95.0 °F(35°C)DB/75.2 °F(24°C)WB.
- (02 - 05) -
2-4. DIMENSIONS
2-4-1. OUTDOOR UNIT
MODELS : AOU18R, AOU24R
CASSETTE TYPE
AUU18-24R
Unit : in.(mm)
CASSETTE TYPE
AUU18-24R
Top view
35-7/16 (900)
32-11/16 (830)
13/16 (21)
(9)
11/32
Front view
3-1/32 (77)
1-7/32
(31)
13 (330)
15-3/4 (400)
15/32
(12)
Side view
25-19/32 (650)
Air flow
14-7/8 (370)
MOUNTING POSITION
When there are obstacles at the
back or front sides.
3-15/16 (100)
or more
23-5/8 (600)
or more
Bottom view
When there are obstacles at the
back, side(s), and top.
3-15/16 (100)
or more
(
9-27/
Ser
32 (
v
i
250)
c
e
s
pac
or
e)
mor
e
11-13/16 (300)
or more
3-29/32 (99)
(196)
7-23/32
5-25/32 (147)
6-11/16
(170)
When there are obstacles at the
back, side with the installation of
more than one unit.
23-5/8 (600)
or more
9-27/32 (250)
or more
11-13/16 (300)
9-27/32 (250)
or more
or more
- (02 - 06) -
2-4-2. INDOOR UNIT
MODELS : AUU18R, AUU24R
1-3/16
(30)
CASSETTE TYPE
AUU18-24R
Side view
Unit : in.(mm)
9-11/16
(246)
CASSETTE TYPE
AUU18-24R
37 (940)
29-17/32 (750)
32-11/16 (830)
37 (940)
Bottom view (Panel)
29-17/32 (750)
32-11/16 (830)
Bottom view
Drain inside Dia. 32mm
outside Dia. 37mm
11-3/4
(298.5)
(Drain pipe)
12 (305.5)
2-3/8 (60)
7-7/8
9-1/4
(235)
(200)
9-25/32
(248.5)
Side view (Standard setting) Side view (Slender setting)
3-15/16 (100)
2-3/4 (70)
(Small pipe)
(Large pipe)
- (02 - 07) -
MOUNTING POSITION
Floor
Unit : in.(mm)
Strong and durable ceiling
CASSETTE TYPE
AUU18-24R
39-3/8
96 (2,400)
or more
47-1/4 (1,200)
or more
(1,000)
or more
Obstruction
CASSETTE TYPE
AUU18-24R
You can select 2-way setting
(A) Standard setting (B) Slender setting
or more
9-27/32 (250)
3-15/16 (100)
or more
(4 directions) (3 directions)
Piping position
8-15/32 (215)
3-15/16 (100)
or more
(2 directions) (2 directions)
3-15/16 (100)
or more
3-15/16 (100) or more
or more
- (02 - 08) -
2-5. REFRIGERANT CIRCUIT
MODELS : AUU18R / AOU18R
OUTDOOR UNIT
Pressure
Check Valve
High Pressure
Strainer
Switch
Muffler
4-way
Valve
Compressor
Expansion
Valve
Accumulator
c
Strainer
CASSETTE TYPE
AUU18-24R
Condenser
Refrigerant Pipe
1/2 (12.70mm )
Charging
Valve
Refrigerant Pipe
1/4 (6.35mm )
Charging Valve
INDOOR UNIT
Evaporator
CASSETTE TYPE
AUU18-24R
: COOL
: HEAT
MODELS : AUU24R / AOU24R
OUTDOOR UNIT
Pressure
Check Valve
High Pressure
Switch
4-way
Muffler
Valve
Condenser
c
Compressor
Expansion
Valve
Strainer
Strainer
INDOOR UNIT
Refrigerant Pipe
5/8 (15.88mm )
Charging
Valve
Evaporator
Accumulator
Refrigerant Pipe
3/8 (9.52mm )
Charging Valve
: COOL
: HEAT
c
(COMPRESSOR TEMP.)
- (02 - 09) -
2-6. WIRING DIAGRAMS
2-6-1. OUTDOOR UNIT
MODELS : AOU18R, AOU24R
TEMP.
TEMP.
CASSETTE TYPE
AUU18-24R
TEMP.
TEMP.
TEMP.
CASSETTE TYPE
AUU18-24R
- (02 - 10) -
G
TO INDOOR UNIT
G
TO POWER SUPPLY
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