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

– 10 –
3000
30.0
25.0
20.0
4000 5000 6000
900 1000 1100 1200 1300 1400 1500 1600
(m
3
/h)
/Sec)(
Air Flow
COOLING
Capacity (kW)
3000
35.0
30.0
25.0
4000 5000 6000
900 1000 1100 1200 1300 1400 1500 1600
(m
3
/h)
/Sec)(
Air Flow
HEATING
Capacity (kW)
900
3000
30
25
20
15
10
100
150
200
250
1000 1100 1200 1300
3500 4000 4500 5000 (m3/h)
(Pa) (mmAq)
/Sec)(
Air Flow
External static pressure
Standard
415V
380V
3000
20.0
15.0
10.0
5.0 4000 5000 6000
900 1000 1100 1200 1300 1400 1500 1600
(m
3
/h)
/Sec)(
Air Flow
COOLING
Temp (°C)
3000
50.0
45.0
40.0
35.0
4000 5000 6000
900 1000 1100 1200 1300 1400 1500 1600
(m
3
/h)
/Sec)(
Air Flow
HEATING
Temp (°C)
■FAN CURVE
■OUTLET AIR TEMPERATURE
■CAPACITY BY AIR FLOW
■COOLING SENSIBLE CAPACITY
INDOOR TEMP. OUTDOOR TEMP. (°C)
(°C) 25 30 35 40 45
DB WB Total Sens. Total Sens. Total Sens. Total Sens. Total Sens.
19 13 22.9 17.3 21.8 16.9 20.9 16.4 19.9 15.8 18.5 14.9
23 16.5 24.7 17.9 23.6 17.5 22.9 17.0 21.7 16.4 20.3 15.7
27 19 27.0 21.4 26.1 21.1 25.4 20.9 24.2 20.2 22.7 19.4
31 22.5 29.3 24.8 28.7 24.7 27.9 24.5 26.7 24.1 25.4 23.3
(Unit : kW)

– 11 –
Actual pipe length 30m 40m 50m Additional
(99ft) (132ft) (164ft) refrigerant (R407C)
Full charge amount 7,000g 8,000g 9,000g 100g/m
HEAT & COOL MODEL (247 oz) (282 oz) (317 oz) (3.5 oz / 3.3 ft)
Full charge amount 6 ,000g 6,500g 7,000g 50g/m
COOLING MODEL (212 oz) (229 oz) (247 oz) (1.8 oz / 3.3 ft)
Cooling Mode *Heating Mode
COOLING MODEL Approx. 00 to 52°C –––––
HEAT & COOL MODEL Approx. 00 to 46°C Approx. -10 to 21°C
(Reverse Cycle)
INDOOR TEMPERATURE Approx. 18 to 30°C Approx. below 30°C
INDOOR HUMIDITY Approx. 80% or less –––––
■REFRIGERANT CHARGE
■TEMPERATURE AND HUMIDITY RANGE
OUTDOOR
TEMPERATURE
• Do not use this unit for any purpose other than the cooling, (*) heating,
dehumidifying and circulating air of rooms in ordinary dwellings.
5. OPERATION DETAILS
Do not purge the air with refrigerants but use a vacuum
pump to vacuum the installation! There is no extra re-
frigerant in the outdoor unit for air purging!
Use a vacuum pump for R407C exclusively.Using the
same vacuum pump for different refrigerant may dam-
age the vacuum pump or the unit.
When moving and installing the air conditioner, do not
mix gas other than the specified refrigerant R407C
inside the refrigerant circuit.
When charging the refrigerant R407C, always use an
electronic balance for refrigerant charging (to measure
the refrigerant by weight).
When charging the refrigerant,
take into account the slight change
in the composition of the gas and
liquid phases, and always charge
from the liquid phase side whose
composition is stable.
Add refrigerant from the charging valve after the
completion of the work.
Use a brand-new refrigerant piping when replacing the
air conditioner using the refrigerant except R407C and
R410A.
Gas
Liquid
LO HI
Gauge manifold
Service hose
Vacuum pump
Use a clean gauge mani-
fold and charging hose
for R407C exclusively.

– 12 –
6. INSTALLATION INSTRUCTIONS
■INDOOR UNIT
• SERVICE SPACE
Leave the space reguired to service the air conditioner. (Fig.1)
(1) If a service hole is provided at the bottom of the product.
(2) If the service hole referenced in (1) is not provided.
• INSTALLING DRAIN PIPE
Position of drain piping and refrigerant piping.
The installed drain pipe should have a downward gradient of 1/50
to 1/100. Make sure that the drain pipe is installed without rises.
Use general hard polyvinylchloride pipe (VP25) and connect
it with adhesive (polyvinylchloride) so that there is no leak-
age. Do not perform air bleeding.
Main drain
On the main drain, provide one trap near the indoor unit.
Safety drain
There is no need to provide a trap for the safety drain. If the
safety drain is connected to the main drain, make the con-
nection below the main trap.
Once installation is complete, check the flow of drain water.
• INSTALLING THE DUCT
Follow the procedure in the following figure to install the duct.
Flange positions for connecting the duct.
Unit : mm
1,250
Inlet port flange
*20 370 14
*25 15
35
350 2 x 160 pitch = 320
75 Outlet port flange
7 x 150 pitch = 1,050
*Spacing between flange and drain pan
Install the air inlet grille for air circulation.
The correct temperature cannot be detected.
Unit
Air Outlet Grille
(Room)
■OUTDOOR UNIT
Provide the space shown in Fig.2 so that the air flow is not
blocked.
• Installing the unit individually
L1 L2
Top blower
outlet
Front air
intake Rear air
intake
H (1,200 mm or less) h
H (1,200 mm or less) h
• There is no limit to the height of the side wall.
• The height of the wall (H) at the front and rear should be
1,200mm or less.
• If the wall height exceeds 1,200mm, add dimension (h) to
the respective service space dimensions L1 and L2.
Fig. 2 10mm or more
200mm
or more
500mm
or more
10mm or more
Front
Air Inlet Grille
200
890
40030 1,920 Unit : mm
Service hole
Fig.1
900 900
Unit H1=100 mm (Approx.)
H2=50 to 100 mm
Drain pipe
Trap
H1H2
Unit
Main
Safety Drain Pipe
95
40
60
50
50
200
427 404
318
235
Safety drain pipe
ø25.4mm (O.D.) Main drain pipe ø38.1mm (O.D.)
Unit : mm

– 13 –
TYPE DUCT TYPE AIR CONDITIONER
COOLING ONLY TYPE COOLING & HEATING TYPE
Model Indoor Unit AR 90E AR 90T
Outdoor Unit AO 90EP AO 90TP
Input Power V/ /Hz 380 - 415 / 3 / 50 380 - 415 / 3 / 50
Cooling kW 24.8 - 25.4 24.8 - 25.4
Capacity BTU/h 84,500 - 86,500 84,500 - 86,500
Heating kW ––– 28.9 - 29.5
BTU/h ––– 98,500 - 100,500
Ampacity Cooling A18.3 - 17.6 19.5 - 19.5
Heating ––– 19.5 - 19.5
Input Watts Cooling kW 11.0 - 11.0 12.2 - 12.5
Heating ––– 12.2 - 12.5
Starting Current A 63 63
Moisture Removal /h 7.5 7.5
E.E.R. Cooling kW/kW 2.25 - 2.31 2.03 - 2.03
Heating ––– 2.36 - 2.36
Fan Speed Indoor r.p.m. 1,140 When static pressure is 200Pa
Outdoor 730
Air Flow Indoor m3/h 4,300 (1,194) When static pressure is 200Pa
Outdoor (/s) 5,800 (1,611)
Standard Static Pressure Pa 200
Net Indoor 450 x 1,550 x 700
Dimensions Outdoor mm 1,380 x 1.300 x 650
H x W x D
Gross Indoor 550 x 1,750 x 825
Outdoor 1,535 x 1,400 x 700
Weights Net / Gross Indoor kg 85 / 100
Outdoor 243 / 280 245 / 282
Refrigerant Type –– R407C
Connection Method / Pipe Size –– Flange / 28.58 (Large) Flare / 12.70 (Small)
Max. Pipe Length / Height m 50 / 30
Operation Range Cooling °C 0 to 52 0 to 46
Heating –– -10 to 21
7. SPECIFICATIONS
Note : Y : Europe version
T : Australia version

0009J-903-1749 September 2000 Printed in Japan
ACN 001 229 554
FUJITSU GENERAL (Euro) GmbH
A SUBSIDIARY OF FUJITSU GENERAL LIMITED
Werftstraße 20, D-40549 Düsseldorf, F.R. Germany TEL : [phone]
FUJITSU GENERAL (U.K.) CO. LIMITED
A SUBSIDIARY OF FUJITSU GENERAL LIMITED
Ground Floor, Elstree House, Elstree Way, Borehamwood, Herts WD6 1LS United Kingdom
TEL : [phone]
FUJITSU GENERAL(AUST.) PTY LIMITED
A SUBSIDIARY OF FUJITSU GENERAL LIMITED
HEAD OFFICE
SYDNEY : 100 Holbeche Road, Arndell Park, N.S.W. 2148 TEL: [phone]
MELBOURNE : Unit 7, 14 Lionel Road, Mount Waverley, VIC. 3149 TEL: [phone]
(also all Tasmanian enquiries)
BRISBANE : Suite 1, Level 5, 301 Coronation Drive, Milton, QLD. 4064 TEL: [phone]
ADELAIDE : 146 Fullarton Road, Rose Park, S.A. 5067 TEL: [phone]
PERTH : Suite 3, 5 Mumford Place, Balcatta W.A. 6021 TEL: [phone]
FUJITSU GENERAL NEW ZEALAND LIMITED
A SUBSIDIARY OF FUJITSU GENERAL LIMITED
HEAD OFFICE
WELLINGTON : Level 1, 8-10 Fitzherbert Street, Petone, New Zealand TEL: [phone]