Fujitsu AR-90T User manual

HIGH STATIC PRESSURE
DUCT TYPE AIR CONDITIONER
TECHNICAL MANUAL
AR90

– 1 –
CONTENTS
1. FEATURES........................................................................ 2
2. DIMENSIONS.................................................................... 4
3.WIRING DIAGRAM............................................................ 6
4. PERFORMANCE DATA..................................................... 9
5. OPERATION DETAILS .................................................... 11
6. INSTALLATION INSTRUCTIONS.................................... 12
7. SPECIFICATIONS........................................................... 13

– 2 –
1. FEATURES
●High static pressure
• Recommended external static pressure is 200Pa (Max. 300Pa).
●Functional LCD wired remote controller (See the next page for details.)
• Weekly timer
Air conditioner ON/OFF can be set for one whole week, including 2 times a day.
• Auto restart function in case of power failure
• Zone control
Only preset air conditioners can be stopped by pressing the ZONE CONTROL button.
●Energy saving operation
• ENERGY SAVE mode uses a computer program to economically control unit operation by
raising the set temperature slightly in the cooling mode and lowering the set temperature in the
heating mode.
●Pipe length up to 50m with height differential up to 30m
●Easy maintenance
• Fan motor maintenance
Fan motor maintenance can be performed from top, bottom, right side, or left side. (Fig. 1)
Fan motor hooks to the panel and is safe and easy to mount and dismount. (Fig. 2)
●Remote sensor unit (Option)
• Temperature sensor unit to be placed in the room
TOP ACCESS
BOTTOM ACCESS
SIDE ACCESS
(BOTH SIDES)
Fig. 1
PILOT PLATE MOTOR
Fig. 2

– 3 –
REMOTE CONTROLLER
WIRE REMOTE CONTROLLER WITH WEEKLY TIMER
Three kinds of timer setup (OFF/ON/WEEKLY) are possible.
Function of weekly timer
• Setting of different on-off time by day
• Setting of set on-off time twice a day
• Setting of time in 5 minute steps
• Timer operation of a reserved day can be temporarily cancelled by pushing the “DAY OFF” button.
• Time setting can be left until the next day.
FEATURES
Display panel
COOL
FAN
HEAT
TEMP.
C
DEFROST TEST
DAY
DAY OFF
CLOCK
OFF
ON
OFF
ON
NEXT DAY
TIMER
NON STOP
OFFON
WEEKLY
TIMER
12
LOW
MED
HIGH
AUTO
2019
18
17
1615
21
MASTER
CONTROL
FAN
CONTROL
TIMER
MODE
DAY CODE
REMOTE CONTROLLER WITH WEEKLY TIMER
1
MON 2 TUE 3 WED 4 THU 5 FRI 6 SAT
TEMP./DAY
ZONE
ENERGY SAVE
SET TIME
CLOCK ADJUST
START/STOP
SET DAY OFF
Display
12
11
9
10
8
7
13
14
1
2
3
4
5
6
MASTER
CONTROL
FAN
CONTROL
TIMER
MODE
DAY CODE
REMOTE CONTROLLER WITH WEEKLY TIMER
1
MON 2 TUE 3 WED 4 THU 5 FRI 6 SAT
TEMP./DAY
ZONE
ENERGY SAVE
SET TIME
CLOCK ADJUST
START/STOP
SET DAY OFF
1 START/STOP Button
Pressed to start and stop operation.
2 OPERATION Lamp
Lights during operation and when the timer is on.
3 DAY OFF Button
Temporary cancellation of one day timer
4 ENERGY SAVE Button
Turns energy save mode on and off.
5 ENERGY SAVE Button
Lights when the unit is in the energy save mode.
6 SET Button
Sets the date, hour, minute and on-off time.
7 ZONE Button
Use to turn zone control on and off.
8 ZONE Lamp
Lights when the unit is in the zone control mode.
9 CLOCK ADJUST Button
10 TIMER MODE Button
Changes the timer mode (NON STOP, OFF TIMER,
ON TIMER, WEEKLY TIMER).
11 SET TIME Button
Sets the current time and on-off time.
12 TEMP./DAY Button
Sets the indoor temperature / day.
13 FAN CONTROL Button
14 MASTER CONTROL Button
Selects the operating mode
(HEAT, FAN, COOL).
15 Clock Display
16 Set Temperature / Day Display (TEMP./DAY)
17 Operation Mode Display
18 Timer Mode Display
19 Fan Speed Display
20 DEFROST Display
21 TEST Display
#NOTE :
This model does not have a fan speed function.
#
#

– 4 –
■INDOOR UNIT
(Unit : mm)
2. DIMENSIONS
■OUTDOOR UNIT
1,550
1,410
660
700
600
450
650
1,300 650
1,380
●SAMPLE INSTALLATION

– 5 –
(Unit : mm)
HOOK METAL
CONTROL BOX
SAFETY DRAIN PORT
AIR FLOW OUTLET AIR FLOW INLET
COUPLING PIPE
MAIN DRAIN PORT
38.1 (DRAIN PIPE)
LIQUID : 12.7 FLARE
GAS : 28.58 FLANGE
1,550 (MAXIMUM)
1,450
713 (MAXIMUM)
600
450
25.4 (SAFETY DRAIN)

– 6 –
3.WIRING DIAGRAM
1 2 1 2
CN. 8
1 2
CN. 6
(DRAIN PUMP)
BLACK
BLACK
THERMISTOR
(ROOM TEMP.)
TO REMOTE
CONTROL UNIT
CONTROL
BOARD
FILTER
BOARD
FAN
MOTOR
MAGNETIC RELAY
CR COMPOSITE
TERMINAL
THERMISTOR
(PIPE TEMP.)
1 2 1 2
CN. 7
GRAY
GRAY
2 31
CN. 15
(FLOAT SWITCH)
3514 35
CN. 5
2 31 2 31
CN. 1
2 13 2 13
CN. 17
RED
WHITE
BLACK
WHITE
FUSE
T3.15A 250V
F101
BLACK
GREEN
WHITE
RED
BLACK
BLUE
WHITE
RED
BLACK
BLUE
BLUE
THERMAL
PROTECTOR
PURPLE
BLUE
123
N
L
TO OUTDOOR
UNIT
TERMINAL
RED
WHITE
BLACK
12
(N)
3
TO POWER
TERMINAL
BLACK
WHITE
RED
TSR
3 2 1 4 5 6 3 2 1 4 5 6
FM
Models : AR 90T
AR 90E
Note : Y : Europe version
T : Australia version

– 7 –
CN. 10
COMPRESSOR A
THERMISTOR
(DISCHARGE TEMP.)
THERMISTOR
(OUTDOOR TEMP.)
INTERNAL
OVERLOAD
PROTECTOR
T
1 T 3
T 2
A1
15
43
WVU32
A2TSR31
BLACK
WHITE BLACK
PURPLE PURPLE
BLUE BLUE
BLACK
RED
BLACK
RED
MAGNETIC RELAY A
CR COMPOSITE
WHITE BLACK PURPLE
COMPRESSOR B
POWER
RELAY B
PRINTED
CIRCUIT
BOARD
EXPANSION
VALVE COIL
INTERNAL
OVERLOAD
PROTECTOR
T
1 T 3
T 2
A2
15
43
WVU32
A1TSR31
BLACK
WHITE
WHITE
BLACK
BLACK
GREEN
GREEN
WHITE
RED
RED
BLACK
BLACK
RED
BELT HEATER B
BELT
HEATER A
MAGNETIC RELAY B
FAN MOTOR A
FAN
CAPACITOR
PRESSURE SWITCH
EARTH
CR COMPOSITE
1
POWER
RELAY A
WHITE
RED
BLACK
PURPLE
1
2
3
6
5
4
CN. 9
3
2
1
RED
BROWN
BLUE
ORANGE
YELLOW
WHITE
6
5
4
CN. 11
3
2
1
12
CN. 16
345
CN. 18
3
2
1
CN. 6
3
2
1
CN. 4
3
2
1
CN. 13
E
3
2
1
CN. 7
1
2
3
4
5
BLACK
23 RSTN
EV
FM
BLUE
RED
WHITE
BLACK
YELLOW
PINK
PINK
GREEN/YELLOW
FAN MOTOR B
FAN
CAPACITOR
12
CN. 3
345
FM
BLUE
RED
WHITE
BLACK
YELLOW
W1 RED
BLACK
PINK
RED
EARTH
POWERUNIT
TERMINAL
GREEN/YELLOW
GREEN/YELLOW
PINK
BLUE
Model : AO 90EP

– 8 –
CN. 10
COMPRESSOR A
THERMISTOR
(DISCHARGE TEMP.)
THERMISTOR
(OUTDOOR TEMP.)
INTERNAL
OVERLOAD
PROTECTOR
T
1 T 3
T 2
A1
15
43
WVU32
A2TSR31
BLACK
WHITE BLACK
PURPLE PURPLE
BLUE BLUE
BLACK
RED
BLACK
RED
MAGNETIC RELAY A
CR COMPOSITE
WHITE BLACK PURPLE
COMPRESSOR B
POWER
RELAY B
PRINTED
CIRCUIT
BOARD
EXPANSION
VALVE COIL
INTERNAL
OVERLOAD
PROTECTOR
T
1 T 3
T 2
A2
15
43
WVU32
A1TSR31
BLACK
WHITE
WHITE
BLACK
BLACK
THERMISTOR
(PIPE TEMP.)
BROWN
BROWN
GREEN
GREEN
WHITE
RED
RED
BLACK
BLACK
RED
BELT HEATER B
BELT
HEATER A
MAGNETIC RELAY B
FAN MOTOR A
FAN
CAPACITOR
PRESSURE SWITCH
SOLENOID COIL
EARTH
CR COMPOSITE
1
POWER
RELAY A
WHITE
RED
BLACK
PURPLE
1
2
3
6
5
4
CN. 9
3
2
1
RED
BROWN
BLUE
ORANGE
YELLOW
WHITE
6
5
4
CN. 11
3
2
1
12
CN. 16
345
CN. 18
3
2
1
CN. 6
3
2
1
CN. 4
3
2
1
CN. 13
E
3
2
1
CN. 7
1
2
3
4
5
BLACK
23 RSTN
EV
4WV
FM
BLUE
RED
WHITE
BLACK
YELLOW
PINK
PINK
BLACK
BLACK
GREEN/YELLOW
FAN MOTOR B
FAN
CAPACITOR
12
CN. 3
345
FM
BLUE
RED
WHITE
BLACK
YELLOW
W1 RED
BLACK
PINK
RED
EARTH
POWERUNIT
TERMINAL
GREEN/YELLOW
GREEN/YELLOW
PINK
BLUE
Model : AO 90TP

– 9 –
4. PERFORMANCE DATA
120 COOLING
110
100
90
90
80
80 19/13
23/16.5
27/19
19/13
31/22.5
23/16.5
27/19
31/22.5
Indoor
DB/WB (°C)
0 5 10 15 20 25 30 35 40 45 50
70
100
110
Total input (%)
Outdoor DB (°C)
Capacity (%)
120 COOLING
110
100
90
90
80
80 19/13
23/16.5
27/19
19/13
31/22.5
23/16.5
27/19
31/22.5
Indoor
DB/WB (°C)
0 5 10 15 20 25 30 35 40 45 50
70
100
110
Total input (%)
Outdoor DB (°C)
Capacity (%)
120 HEATING
110
100
90
90
80
80
15
27
20
27
20
15
Indoor
DB (°C)
-5 0 5 10 15 20
//////
-6 -2 3 7.5 12 17.5
70
100
110
Total input (%)
Outdoor DB (°C)
Capacity (%)
■COOLING MODEL
■REVERSE MODEL