Fujitsu ARYG72LHTA Service manual

AIR CONDITIONER
Duct type
DESIGN & TECHNICAL MANUAL
INDOOR
ARYG72LHTA
ARYG90LHTA
OUTDOOR
AOYG72LRLA
AOYG90LRLA
DR_AR012EF_05
2018.07.13

Notices:
• Product specifications and design are subject to change without notice for future improvement.
• For further details, please check with our authorized dealer.
Copyright © 2017, 2018 Fujitsu General Limited. All rights reserved.

CONTENTS
Part 1. INDOOR UNIT...........................................................................1
1. Product features............................................................................................2
1-1. System outline .................................................................................................................2
2. Specifications................................................................................................3
3. Dimensions....................................................................................................4
3-1. Models: ARYG72LHTA and ARYG90LHTA.....................................................................4
3-2. Installation space requirement .........................................................................................5
3-3. Maintenance space requirement......................................................................................6
4. Wiring diagrams ............................................................................................7
4-1. Model: ARYG72LHTA......................................................................................................7
4-2. Model: ARYG90LHTA......................................................................................................8
5. Capacity table................................................................................................9
5-1. Cooling capacity...............................................................................................................9
5-2. Heating capacity ............................................................................................................10
6. Fan performance .........................................................................................11
6-1. Fan performance curve..................................................................................................11
6-2. Airflow ............................................................................................................................15
7. Operation noise (sound pressure).............................................................17
7-1. Noise level curve............................................................................................................17
7-2. Sound level check point .................................................................................................18
8. Electrical characteristics............................................................................19
9. Safety devices .............................................................................................20
10. External input and output...........................................................................21
10-1.External input................................................................................................................22
10-2.External output..............................................................................................................23
10-3.Combination of external input and output......................................................................24
10-4.Details of function .........................................................................................................26
11. Remote controller .......................................................................................32
11-1.Wired remote controller.................................................................................................32
12. Function settings ........................................................................................35
12-1.Function settings on indoor unit ....................................................................................35
12-2.Function settings by using remote controller.................................................................37
13. Accessories.................................................................................................48
14. Optional parts..............................................................................................49
14-1.Controllers ....................................................................................................................49
14-2.Others ...........................................................................................................................51

Part 2. OUTDOOR UNIT.....................................................................53
1. Specifications..............................................................................................54
2. Dimensions..................................................................................................55
2-1. Models: AOYG72LRLA and AOYG90LRLA...................................................................55
3. Installation space ........................................................................................56
3-1. Models: AOYG72LRLA and AOYG90LRLA...................................................................56
4. Refrigerant circuit .......................................................................................59
4-1. Models: AOYG72LRLA and AOYG90LRLA...................................................................59
5. Wiring diagrams ..........................................................................................60
5-1. Models: AOYG72LRLA and AOYG90LRLA...................................................................60
6. Capacity compensation rate for pipe length and height difference........61
6-1. Model: AOYG72LRLA....................................................................................................61
6-2. Model: AOYG90LRLA....................................................................................................62
7. Additional charge calculation ....................................................................63
7-1. Model: AOYG72LRLA....................................................................................................63
7-2. Model: AOYG90LRLA....................................................................................................63
8. Airflow..........................................................................................................64
8-1. Model: AOYG72LRLA....................................................................................................64
8-2. Model: AOYG90LRLA....................................................................................................64
9. Operation noise (sound pressure).............................................................65
9-1. Noise level curve............................................................................................................65
9-2. Sound level check point .................................................................................................66
10. Electrical characteristics............................................................................67
11. Safety devices .............................................................................................68
12. External input and output ..........................................................................69
12-1.External input................................................................................................................69
12-2.External output..............................................................................................................71
13. Function settings .......................................................................................73
13-1.Local setting switch buttons ..........................................................................................73
13-2.Local setting procedure.................................................................................................75
14. Check and test.............................................................................................77
14-1.Test run.........................................................................................................................77
14-2.Error code .....................................................................................................................79
14-3.Pump down...................................................................................................................80
15. Accessories.................................................................................................82
16. Optional parts..............................................................................................83
CONTENTS (continued)

Part 1. INDOOR UNIT
DUCT TYPE:
ARYG72LHTA
ARYG90LHTA

1. Product features
1-1. System outline
3
4
1: Power supply [Outdoor Unit] ( )
2: Piping ( )
3: Transmission line [O.U. - I.U] ( )
4: Power supply [Indoor Unit] ( )
5: Remote controller line [I.U. - R.C.] ( )
1
Earth leakage
breaker
Power
supply
Circuit breaker
(over current)
5
Power
supply
Earth leakage
breaker
Circuit breaker
(over current)
Outdoor unit 2
Indoor unit
φ3 400V~50Hz
φ1230V~50Hz
- 2 -
1-1. System outline 1. Product features
DUCT TYPE ARYG72-90LHTA DUCT TYPE ARYG72-90LHTA

2. Specifications
Type
Duct
Inverter heat pump
Model name ARYG72LHTA ARYG90LHTA
Power supply 230 V ~ 50 Hz
Available voltage range 198—264 V
Capacity
Cooling
Rated kW 19.0 22.0
Btu/h 64,800 75,000
Min.—Max. kW 8.40 —20.90 10.30—24.20
Btu/h 28,600 —71,300 35,100 —82,500
Heating
Rated kW 22.4 27.0
Btu/h 76,400 92,100
Min.—Max. kW 7.20—24.60 8.50—29.70
Btu/h 24,500 —83,900 29,000—101,300
Input power
Cooling Rated kW 0.47 0.53
Heating 0.47 0.53
Fan
HIGH
W
580 640
MED 450 470
LOW 320 350
QUIET 210 250
Current Cooling Rated A 3.2 3.5
Heating 3.2 3.5
Power factor Cooling %63.9 65.8
Heating 63.9 65.8
EER Cooling kW/kW 2.94 2.83
COP Heating 3.40 3.30
Moisture removal L/h (pints/h) 4.5 (7.92) 6.0 (10.56)
Maximum operating current *1 Cooling A4.6 6.0
Heating 4.6 6.0
Fan
Airflow rate
Cooling
HIGH
m3/h
4,300 4,300
MED 3,900 3,900
LOW 3,450 3,450
QUIET 3,000 3,000
Heating
HIGH 4,300 4,300
MED 3,900 3,900
LOW 3,450 3,450
QUIET 3,000 3,000
Type × Q'ty Sirocco fan × 2
Motor output W 750 1,070
Static pressure range Pa 50 to 150 (Standard: 72) 50 to 200 (Standard: 72)
Sound pressure level *2
Cooling
HIGH
dB (A)
46 47
MED 43 44
LOW 41 42
QUIET 39 40
Heating
HIGH 46 47
MED 43 44
LOW 41 42
QUIET 39 40
Sound power level Cooling dB (A) 79 79
Heating 80 80
Heat exchanger type
Dimensions (H × W × D)
mm
546 × 1,158 × 39.9 Main: 546 × 1,158 × 39.9
Sub: (252 × 1,158 × 13.3) × 2
Fin pitch 1.3 Main: 1.3
Sub: 1.45
Rows × Stages 3 × 26 Main: 3 × 26
Sub: (1 × 12) × 2
Pipe type Copper
Fin type Aluminium
Enclosure Material Steel
Color ―
Dimensions
(H × W × D)
Net mm 360 × 1,400 × 850
Gross 460 × 1,640 × 1,030
Weight Net kg 69 80
Gross 80 91
Connection pipe Size Liquid mm (in) Ø 12.70 (Ø 1/2)
Gas Ø 25.40 (Ø 1)
Method Brazing
Drain hose Material PVC
Size mm Ø 24.4 (I.D.), Ø 32 (O.D.) (VP25)
Operation range Cooling °C 18 to 32
%RH 80 or less
Heating °C 16 to 30
Remote controller type Wired
NOTES:
• Specifications are based on the following conditions:
– Cooling: Indoor temperature of 27 °CDB/19 °CWB, and outdoor temperature of 35 °CDB/24 °CWB.
– Heating: Indoor temperature of 20 °CDB/15 °CWB, and outdoor temperature of 7 °CDB/6 °CWB.
– Pipe length: 7.5 m, Height difference: 0 m. (Between outdoor unit and indoor unit.).
• Protective function might work when using it outside the operation range.
• *1: Maximum current:
– The maximum value when operated within the operation range.
– The total current of indoor unit and outdoor unit.
• *2: Sound pressure level:
– Measured values in manufacturer’s anechoic chamber.
– Because of the surrounding sound environment, the sound levels measured in actual installation conditions might be higher than the specified values here.
- 3 - 2. Specifications
DUCT TYPE ARYG72-90LHTA DUCT TYPE ARYG72-90LHTA

3. Dimensions
3-1. Models: ARYG72LHTA and ARYG90LHTA
Unit: mm
Gas pipe
Drain port
Control box
Liquid pipe
Air
Side view (R)Top viewSide view (L)
Front view
Rear view
90
88
- 4 -
3-1. Models: ARYG72LHTA and ARYG90LHTA 3. Dimensions
DUCT TYPE ARYG72-90LHTA DUCT TYPE ARYG72-90LHTA

3-2. Installation space requirement
Provide sufficient installation space for product safety.
¢Models: ARYG72LHTA and ARYG90LHTA
•Installation by which service space is made on top of the unit (recommended):
Unit: mm
450 or more
500 or more
150 or
more
20 or more
2,500 or more
(When no ceiling)
•Installation by which service is carried out from the bottom of the unit:
Unit: mm
500 or more
150 or
more
20 or more
20 or more
2,500 or more
(When no ceiling)
- 5 -
3-2. Installation space requirement 3. Dimensions
DUCT TYPE ARYG72-90LHTA DUCT TYPE ARYG72-90LHTA

3-3. Maintenance space requirement
For future maintenance and service access, provide sufficient maintenance space.
NOTE: Do not place any wiring or illumination in the maintenance space, as they will impede ser-
vice.
¢Models: ARYG72LHTA and ARYG90LHTA
AIR
Service access
700 or more
700 or more
500 or more
Control box
Bottom view
Unit: mm
Bottom view
Service access
2,000 or more
100
500 or more
500 or more
AIR
Unit: mm
- 6 -
3-3. Maintenance space requirement 3. Dimensions
DUCT TYPE ARYG72-90LHTA DUCT TYPE ARYG72-90LHTA

4. Wiring diagrams
4-1. Model: ARYG72LHTA
I/O PCB, WLAN adapter, Converter etc.
- 7 -
4-1. Model: ARYG72LHTA 4. Wiring diagrams
DUCT TYPE ARYG72-90LHTA DUCT TYPE ARYG72-90LHTA

4-2. Model: ARYG90LHTA
I/O PCB, WLAN adapter, Converter etc.
- 8 -
4-2. Model: ARYG90LHTA 4. Wiring diagrams
DUCT TYPE ARYG72-90LHTA DUCT TYPE ARYG72-90LHTA

5. Capacity table
Capacity tables show each of following values calculated based on the outdoor temperature and the
indoor temperature, under given Airflow Rate (AFR):
For cooling capacity: Total Capacity (TC), Sensible Heat Capacity (SHC), and Input Power (IP)
For heating capacity: Total Capacity (TC) and Input Power (IP)
5-1. Cooling capacity
¢Model: ARYG72LHTA
AFR m3/h 4,300
Indoor temperature
°CDB 18 21 23 25 27 29 32
°CWB 12 15 16 18 19 21 23
Outdoor temperature
°CDB TC SHC IP TC SHC IP TC SHC IP TC SHC IP TC SHC IP TC SHC IP TC SHC IP
kW kW kW kW kW kW kW
-15 17.44 14.30 2.86 19.42 14.39 2.91 20.08 15.64 2.93 21.40 15.70 2.96 22.07 16.94 2.97 23.39 16.88 3.01 24.72 17.99 3.03
-10 17.26 14.16 2.87 19.23 14.25 2.92 19.88 15.49 2.93 21.20 15.53 2.96 21.85 16.78 2.98 23.16 16.71 3.01 24.48 17.80 3.03
0 17.10 14.03 3.06 19.05 14.11 3.10 19.69 15.34 3.12 20.99 15.39 3.15 21.64 16.61 3.17 22.95 16.55 3.20 24.24 17.63 3.23
5 17.06 13.99 3.19 19.01 14.07 3.24 19.65 15.30 3.26 20.94 15.34 3.29 21.60 16.58 3.31 22.89 16.51 3.35 24.19 17.59 3.38
10 16.88 13.97 3.59 18.81 14.05 3.65 19.44 15.27 3.67 20.72 15.33 3.70 21.37 16.55 3.72 22.65 16.49 3.76 23.94 17.56 3.80
15 16.40 13.80 3.71 18.25 14.03 3.77 18.89 15.25 3.79 20.12 15.30 3.83 20.74 16.53 3.85 21.99 16.46 3.88 23.23 17.52 3.93
20 16.62 13.93 4.13 18.50 14.17 4.20 19.14 15.40 4.21 20.40 15.45 4.26 21.03 16.69 4.28 22.29 16.62 4.33 23.56 17.70 4.36
25 16.78 13.94 4.90 18.69 14.18 4.98 19.33 15.41 5.00 20.61 15.46 5.05 21.24 16.71 5.08 22.52 16.64 5.13 23.79 17.72 5.18
30 16.45 13.25 5.60 18.33 13.47 5.67 18.96 14.65 5.70 20.19 14.69 5.77 20.82 15.87 5.79 22.07 15.81 5.84 23.32 16.85 5.91
35 15.01 12.95 6.24 16.72 13.24 6.33 17.29 14.40 6.37 18.43 14.44 6.43 19.00 15.60 6.46 20.14 15.53 6.53 21.28 16.55 6.59
40 14.86 12.23 5.91 16.55 12.58 5.99 17.12 13.68 6.03 18.25 13.72 6.08 18.81 14.82 6.11 19.94 14.77 6.18 21.07 15.72 6.24
46 11.84 11.08 5.76 13.19 11.90 5.83 13.63 12.61 5.87 14.52 12.98 5.93 14.98 14.02 5.96 15.89 13.96 6.02 16.78 14.86 6.07
¢Model: ARYG90LHTA
AFR m3/h 4,300
Indoor temperature
°CDB 18 21 23 25 27 29 32
°CWB 12 15 16 18 19 21 23
Outdoor temperature
°CDB TC SHC IP TC SHC IP TC SHC IP TC SHC IP TC SHC IP TC SHC IP TC SHC IP
kW kW kW kW kW kW kW
-15 20.19 16.22 3.44 22.49 16.33 3.50 23.25 17.75 3.52 24.78 17.81 3.56 25.55 19.23 3.57 27.08 19.15 3.62 28.62 20.41 3.65
-10 19.98 16.06 3.46 22.27 16.16 3.51 23.02 17.58 3.52 24.55 17.63 3.56 25.30 19.04 3.58 26.82 18.96 3.62 28.34 20.20 3.65
0 19.80 15.91 3.68 22.05 16.01 3.73 22.80 17.40 3.76 24.30 17.46 3.79 25.05 18.85 3.82 26.57 18.77 3.85 28.07 20.00 3.89
5 19.75 15.88 3.84 22.01 15.96 3.90 22.75 17.36 3.93 24.25 17.41 3.96 25.01 18.81 3.99 26.51 18.73 4.02 28.01 19.95 4.06
10 19.55 15.85 4.32 21.78 15.94 4.38 22.51 17.33 4.41 24.00 17.39 4.45 24.74 18.77 4.48 26.23 18.71 4.52 27.71 19.92 4.57
15 18.99 15.66 4.47 21.14 15.92 4.53 21.87 17.31 4.56 23.30 17.35 4.60 24.02 18.75 4.63 25.47 18.68 4.67 26.90 19.88 4.72
20 19.24 15.81 4.97 21.42 16.08 5.05 22.17 17.48 5.07 23.62 17.53 5.12 24.35 18.94 5.15 25.81 18.86 5.20 27.28 20.09 5.25
25 19.42 15.82 5.90 21.64 16.08 5.99 22.39 17.49 6.02 23.86 17.54 6.08 24.60 18.96 6.11 26.07 18.88 6.17 27.55 20.11 6.23
30 19.05 15.03 6.73 21.22 15.29 6.82 21.95 16.62 6.86 23.38 16.67 6.93 24.11 18.01 6.97 25.55 17.94 7.03 27.00 19.12 7.11
35 17.38 14.69 7.50 19.35 15.02 7.61 20.02 16.34 7.66 21.35 16.39 7.74 22.00 17.70 7.77 23.32 17.63 7.85 24.65 18.78 7.93
40 17.21 13.87 7.10 19.17 14.27 7.20 19.82 15.52 7.26 21.13 15.57 7.31 21.78 16.82 7.35 23.09 16.76 7.43 24.39 17.84 7.51
46 13.70 12.57 6.92 15.27 13.50 7.01 15.78 14.31 7.06 16.81 14.73 7.13 17.35 15.91 7.17 18.39 15.84 7.24 19.42 16.86 7.31
- 9 -
5-1. Cooling capacity 5. Capacity table
DUCT TYPE ARYG72-90LHTA DUCT TYPE ARYG72-90LHTA

5-2. Heating capacity
NOTE: Values mentioned in the table are calculated based on the maximum capacity.
¢Model: ARYG72LHTA
AFR m3/h 4,300
Indoor temperature
°CDB 16 18 20 22 24
Outdoor temperature
°CDB °CWB TC IP TC IP TC IP TC IP TC IP
kW kW kW kW kW
-20 -21 10.58 5.57 10.32 5.68 10.07 5.80 9.82 5.91 9.57 6.02
-15 -16 16.21 6.42 15.83 6.56 15.44 6.69 15.06 6.82 14.68 6.96
-10 -11 18.89 6.82 18.44 6.96 18.00 7.10 17.55 7.25 17.10 7.39
-5 -7 20.98 7.11 20.48 7.26 19.98 7.41 19.48 7.56 18.99 7.70
0 -2 22.62 7.19 22.08 7.34 21.54 7.49 21.00 7.63 20.47 7.78
5 3 25.56 7.20 24.95 7.35 24.35 7.50 23.73 7.64 23.13 7.79
7 6 25.83 7.21 25.22 7.36 24.60 7.51 23.99 7.66 23.37 7.81
10 8 27.04 7.16 26.39 7.30 25.74 7.46 25.09 7.60 24.46 7.76
15 10 28.06 7.16 27.39 7.30 26.72 7.45 26.05 7.61 25.38 7.71
20 15 25.25 6.25 24.64 6.37 24.04 6.50 23.44 6.64 22.83 6.72
24 18 25.81 6.21 25.19 6.33 24.58 6.47 23.96 6.61 23.35 6.69
¢Model: ARYG90LHTA
AFR m3/h 4,300
Indoor temperature
°CDB 16 18 20 22 24
Outdoor temperature
°CDB °CWB TC IP TC IP TC IP TC IP TC IP
kW kW kW kW kW
-20 -21 12.77 6.65 12.47 6.79 12.16 6.93 11.86 7.07 11.56 7.19
-15 -16 19.57 7.68 19.11 7.84 18.64 8.00 18.18 8.16 17.72 8.31
-10 -11 22.81 8.16 22.27 8.32 21.73 8.49 21.19 8.66 20.65 8.83
-5 -7 25.33 8.50 24.73 8.68 24.12 8.86 23.52 9.03 22.92 9.21
0 -2 27.31 8.59 26.66 8.77 26.00 8.95 25.35 9.13 24.71 9.29
5 3 30.86 8.61 30.12 8.79 29.39 8.97 28.65 9.13 27.92 9.27
7 6 31.19 8.62 30.44 8.80 29.70 8.98 28.96 9.16 28.22 9.28
10 8 32.64 8.56 31.86 8.73 31.08 8.92 30.29 9.09 29.53 9.28
15 10 33.88 8.56 33.07 8.72 32.26 8.91 31.45 9.10 30.65 9.22
20 15 30.48 7.47 29.75 7.61 29.02 7.77 28.30 7.94 27.57 8.04
24 18 31.16 7.43 30.42 7.57 29.67 7.73 28.93 7.90 28.20 8.00
- 10 -
5-2. Heating capacity 5. Capacity table
DUCT TYPE ARYG72-90LHTA DUCT TYPE ARYG72-90LHTA

6. Fan performance
6-1. Fan performance curve
¢Model: ARYG72LHTA
Airflow
0
280
300
260
240
220
200
180
160
140
120
100
80
60
40
20
External Static Pressure [Pa]
Fan performance curve_1
Hi (SP mode15)
SP mode15
upper limit
Qu (SP mode15)
SP mode15
lower limit
Normal SP
upper limit
Normal SP
lower limit
Hi (Normal SP)
Qu (Normal SP)
[l/s]
[m3/h]
1,389556 695 833 972 1,111 1,250
2,000 2,500 3,000 3,500 4,000 4,500 5,000
[l/s]
[m3/h]
Airflow
0
280
300
260
240
220
200
180
160
140
120
100
80
60
40
20
External Static Pressure [Pa]
1,389556 695 833 972 1,111 1,250
2,000 2,500 3,000 3,500 4,000 4,500 5,000
Fan performance curve_2
(For function setting by remote controller)
Hi (SP mode13,14,15)
Hi (SP mode11)
Hi (SP mode09)
Hi (Normal SP)
Hi (SP mode07)
Hi (SP mode05)
Hi (SP mode12)
Hi (SP mode10)
Hi (SP mode08)
Hi (SP mode06)
NOTES:
• Setting of the external static pressure is switchable into modes by using the remote controller.
• According to the resistance of the connecting duct, perform the setting of the external static
pressure with referring “Fan performance curve_2” above.
• The default setting is set at "Normal SP".
- 11 -
6-1. Fan performance curve 6. Fan performance
DUCT TYPE ARYG72-90LHTA DUCT TYPE ARYG72-90LHTA

Characteristics of air volume and capacity
• Cooling
[l/s]
[m3/h]
Airflow
1,389556 695 833 972 1,111 1,250
2,000 2,500 3,000 3,500 4,000 4,500 5,000
100
105
95
Capacity [%]
• Heating
[l/s]
[m3/h]
Airflow
1,389556 695 833 972 1,111 1,250
2,000 2,500 3,000 3,500 4,000 4,500 5,000
100
105
95
Capacity [%]
- 12 -
6-1. Fan performance curve 6. Fan performance
DUCT TYPE ARYG72-90LHTA DUCT TYPE ARYG72-90LHTA

¢Model: ARYG90LHTA
[l/s]
[m3/h]
Airflow
0
280
300
260
240
220
200
180
160
140
120
100
80
60
40
20
External Static Pressure [Pa]
Fan performance curve_1
1,389556 695 833 972 1,111 1,250
2,000 2,500 3,000 3,500 4,000 4,500 5,000
Hi (SP mode20)
Normal SP
lower limit
Hi (Normal SP)
Qu (Normal SP)
Qu (SP mode20)
Normal SP
upper limit
SP mode20
lower limit
SP mode20
upper limit
[l/s]
[m3/h]
Airflow
0
280
300
260
240
220
200
180
160
140
120
100
80
60
40
20
External Static Pressure [Pa]
1,389556 695 833 972 1,111 1,250
2,000 2,500 3,000 3,500 4,000 4,500 5,000
Fan performance curve_2
(For function setting by remote controller)
Hi (SP mode11)
Hi (SP mode09)
Hi (Normal SP)
Hi (SP mode07)
Hi (SP mode05)
Hi (SP mode12)
Hi (SP mode10)
Hi (SP mode08)
Hi (SP mode06)
Hi (SP mode20)
Hi (SP mode18)
Hi (SP mode16)
Hi (SP mode14)
Hi (SP mode19)
Hi (SP mode17)
Hi (SP mode15)
Hi (SP mode13)
NOTES:
• Setting of the external static pressure is switchable into modes by using the remote controller.
• According to the resistance of the connecting duct, perform the setting of the external static
pressure with referring “Fan performance curve_2” above.
• The default setting is set at "Normal SP".
- 13 -
6-1. Fan performance curve 6. Fan performance
DUCT TYPE ARYG72-90LHTA DUCT TYPE ARYG72-90LHTA

Characteristics of air volume and capacity
• Cooling
[l/s]
[m3/h]
Airflow
1,389556 695 833 972 1,111 1,250
2,000 2,500 3,000 3,500 4,000 4,500 5,000
100
105
95
Capacity [%]
• Heating
[l/s]
[m3/h]
Airflow
1,389556 695 833 972 1,111 1,250
2,000 2,500 3,000 3,500 4,000 4,500 5,000
100
105
95
Capacity [%]
¢Automatic airflow adjustment procedures
1. To start the auto setting, use No.32 of setting value in Function Number 26.
2. Run the air conditioner on fan mode (High).
* For instructions on how to operate the air conditioner, refer to the operation manual of the
remote controller.
During automatic airflow adjustment, the mode will be fixed at fan (High).
When this function is active, do not operate the outdoor unit.
3. The air conditioner will run for about 1 to 8 min then stop automatically.
* Do not change the throttles of the inlet and outlet ports during operation.
When used in a group control system, the setting will take about 10 min.
4. Turn the air conditioner off and on again.
5. Check the setting value of Function 26.
* If the setting value has not changed, repeat the procedure from step 2.
CAUTION
When the duct or outlet installations are changed after the Automatic airflow adjustment is complet-
ed, repeat the procedure from step 1.
- 14 -
6-1. Fan performance curve 6. Fan performance
DUCT TYPE ARYG72-90LHTA
DUCT TYPE ARYG72-90LHTA

6-2. Airflow
¢Model: ARYG72LHTA
Cooling
Fan speed Airflow
HIGH
m3/h 4,300
l/s 1.195
CFM 2,531
MED
m3/h 3,900
l/s 1,083
CFM 2,296
LOW
m3/h 3,450
l/s 958
CFM 2,031
QUIET
m3/h 3,000
l/s 833
CFM 1,766
Heating
Fan speed Airflow
HIGH
m3/h 4,300
l/s 1.195
CFM 2,531
MED
m3/h 3,900
l/s 1,083
CFM 2,296
LOW
m3/h 3,450
l/s 958
CFM 2,031
QUIET
m3/h 3,000
l/s 833
CFM 1,766
- 15 -
6-2. Airflow 6. Fan performance
DUCT TYPE ARYG72-90LHTA DUCT TYPE ARYG72-90LHTA

¢Model: ARYG90LHTA
Cooling
Fan speed Airflow
HIGH
m3/h 4,300
l/s 1.195
CFM 2,531
MED
m3/h 3,900
l/s 1,083
CFM 2,296
LOW
m3/h 3,450
l/s 958
CFM 2,031
QUIET
m3/h 3,000
l/s 833
CFM 1,766
Heating
Fan speed Airflow
HIGH
m3/h 4,300
l/s 1.195
CFM 2,531
MED
m3/h 3,900
l/s 1,083
CFM 2,296
LOW
m3/h 3,450
l/s 958
CFM 2,031
QUIET
m3/h 3,000
l/s 833
CFM 1,766
- 16 -
6-2. Airflow 6. Fan performance
DUCT TYPE ARYG72-90LHTA DUCT TYPE ARYG72-90LHTA