Fujitsu AR-90T, AR-90E, AO-90EP, AO-90TP Technical 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 perfor med 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
1
2
LOW
MED
HIGH
AUTO
2019
18
17
1615
21
MASTER
CONTROL
FAN
CONTROL
TIMER
MODE
DAY CODE
REMOTE CONTROLLER WITH WEEKLY TIMER
1
MON2TUE3WED4THU5FRI6SAT
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
MON2TUE3WED4THU5FRI6SAT
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, WEEKL Y 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
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