Fujitsu ARXG12KHTAP Service manual

AIR CONDITIONER
Duct type
DESIGN & TECHNICAL MANUAL
INDOOR
ARXG12KHTAP
ARXG14KHTAP
ARXG18KHTAP
ARXG22KHTAP
OUTDOOR
AOYG12KBTB
AOYG14KBTB
AOYG18KBTB
AOYG22KBTB
DR_AR031EF_03
2019.07.11

Notices:
• Product specifications and design are subject to change without notice for future improvement.
• For further details, please check with our authorized dealer.
Trademarks
FGLair™ is trademark of Fujitsu General Limited in the United States, other countries or both.
Google Play™ is trademark of Google Inc.
App Store® is a service mark of Apple Inc., registered in the U.S. and other countries.
Copyright © 2019 Fujitsu General Limited. All rights reserved.

CONTENTS
Part 1. INDOOR UNIT...........................................................................1
1. Specifications................................................................................................2
2. Dimensions....................................................................................................4
2-1. Models: ARXG12KHTAP and ARXG14KHTAP ...............................................................4
2-2. Models: ARXG18KHTAP and ARXG22KHTAP ...............................................................5
2-3. Installation space requirement .........................................................................................6
2-4. Maintenance space requirement......................................................................................7
3. Wiring diagrams ............................................................................................8
3-1. Models: ARXG12KHTAP, ARXG14KHTAP, ARXG18KHTAP, and ARXG22KHTAP ......8
4. Capacity table................................................................................................9
4-1. Cooling capacity...............................................................................................................9
4-2. Heating capacity ............................................................................................................11
5. Fan performance .........................................................................................12
5-1. Fan performance curve..................................................................................................12
5-2. Airflow ............................................................................................................................18
6. Operation noise (sound pressure).............................................................21
6-1. Noise level curve............................................................................................................21
6-2. Sound level check point .................................................................................................23
7. Safety devices .............................................................................................24
8. External input and output...........................................................................25
8-1. External input.................................................................................................................25
8-2. External output...............................................................................................................27
8-3. Combination of external input and output.......................................................................28
8-4. Details of function ..........................................................................................................30
9. Function settings ........................................................................................36
9-1. Function settings on indoor unit .....................................................................................36
9-2. Function settings by using remote controller..................................................................38
10. Accessories.................................................................................................43
10-1.Models: ARXG12KHTAP, ARXG14KHTAP, ARXG18KHTAP, and ARXG22KHTAP ...43
11. Optional parts .............................................................................................44
11-1.Controllers ....................................................................................................................44
11-2.Others ...........................................................................................................................45

Part 2. OUTDOOR UNIT.....................................................................47
1. Specifications..............................................................................................48
2. Dimensions..................................................................................................49
2-1. Models: AOYG12KBTB and AOYG14KBTB ..................................................................49
2-2. Models: AOYG18KBTB and AOYG22KBTB ..................................................................50
3. Installation space ........................................................................................51
3-1. Models: AOYG12KBTB, AOYG14KBTB, AOYG18KBTB, and AOYG22KBTB..............51
4. Refrigerant circuit .......................................................................................54
4-1. Models: AOYG12KBTB and AOYG14KBTB ..................................................................54
4-2. Model: AOYG18KBTB ...................................................................................................55
4-3. Model: AOYG22KBTB ...................................................................................................56
5. Wiring diagrams ..........................................................................................57
5-1. Models: AOYG12KBTB, AOYG14KBTB, and AOYG18KBTB .......................................57
5-2. Model: AOYG22KBTB ...................................................................................................58
6. Capacity compensation rate for pipe length and height difference........59
6-1. Model: AOYG12KBTB ...................................................................................................59
6-2. Model: AOYG14KBTB ...................................................................................................60
6-3. Model: AOYG18KBTB ...................................................................................................61
6-4. Model: AOYG22KBTB ...................................................................................................62
7. Additional charge calculation ....................................................................63
7-1. Models: AOYG12KBTB and AOYG14KBTB ..................................................................63
7-2. Model: AOYG18KBTB ...................................................................................................63
7-3. Model: AOYG22KBTB ...................................................................................................63
8. Airflow..........................................................................................................64
8-1. Model: AOYG12KBTB ...................................................................................................64
8-2. Model: AOYG14KBTB ...................................................................................................64
8-3. Model: AOYG18KBTB ...................................................................................................64
8-4. Model: AOYG22KBTB ...................................................................................................65
9. Operation noise (sound pressure).............................................................66
9-1. Noise level curve............................................................................................................66
9-2. Sound level check point .................................................................................................68
10. Electrical characteristics............................................................................69
11. Safety devices .............................................................................................70
12. Accessories.................................................................................................71
12-1.Models: AOYG12KBTB, AOYG14KBTB, AOYG18KBTB, and AOYG22KBTB.............71
CONTENTS (continued)

Part 1. INDOOR UNIT
DUCT TYPE:
ARXG12KHTAP
ARXG14KHTAP
ARXG18KHTAP
ARXG22KHTAP

1. Specifications
Type
Duct
Inverter heat pump
Model name ARXG12KHTAP ARXG14KHTAP ARXG18KHTAP ARXG22KHTAP
Power supply 230 V ~ 50 Hz
Power supply intake Outdoor unit
Available voltage range 198—264 V
Capacity
Cooling
Rated kW 3.5 4.3 5.2 6.0
Btu/h 11,950 14,650 17,700 20,500
Min.—Max. kW 0.9 — 4.4 0.9 — 5.4 0.9 — 5.9 0.9 — 6.7
Btu/h 3,100 — 15,000 3,100 — 18,400 3,100 — 20,100 3,100 — 22,900
Heating
Rated kW 4.1 5.0 6.0 7.0
Btu/h 14,000 17,050 20,500 23,900
Min.—Max. kW 0.9 — 5.7 0.9 — 6.5 0.9 — 7.5 0.9 — 8.0
Btu/h 3,100 — 19,400 3,100 - 22,100 3,100 — 25,600 3,100 — 27,300
Input power
Cooling Rated
kW
0.87 1.17 1.36 1.71
Max. 2.24 2.35 2.79 2.80
Heating Rated 1.00 1.25 1.56 1.81
Max. 2.24 2.35 2.79 2.80
Current Cooling Rated A 3.9 5.1 6.0 7.5
Heating 4.4 5.5 6.8 7.9
Power factor Cooling %97.0 99.7 98.6 99.1
Heating 98.8 98.8 99.7 99.6
EER Cooling kW/kW 4.02 3.68 3.82 3.51
COP Heating 4.10 4.00 3.85 3.87
Moisture removal L/h (pints/h) 0.7 (1.2) 0.9 (1.6) 1.2 (2.1) 1.5 (2.6)
Maximum operating current *1 Cooling A9.7 10.2 12.1 12.6
Heating 9.7 10.2 12.1 12.6
Fan
Airflow rate
Cooling
HIGH
m3/h
850 950 1,050 1,050
MED 680 760 840 840
LOW 590 670 740 740
QUIET 510 570 630 630
Heating
HIGH 850 950 1,050 1,050
MED 680 760 840 840
LOW 590 670 740 740
QUIET 510 570 630 630
Type × Q'ty Sirocco fan × 1 Sirocco fan × 2
Motor output W 154 197
Recommended static pressure range Pa 30 to 200
Sound pressure level *2
Cooling
HIGH
dB (A)
32 33 28 28
MED 27 28 25 25
LOW 26 27 22 22
QUIET 24 25 20 20
Heating
HIGH 32 33 28 28
MED 27 28 25 25
LOW 26 27 22 22
QUIET 24 25 20 20
Heat exchanger type
Dimensions (H × W × D) mm 420 × 458 × 39.9 420 × 758 × 39.9
Fin pitch 1.4
Rows × Stages 3 × 20
Pipe type Copper tube
Fin type Aluminum
Enclosure Material Steel sheet
Color ―
Dimensions
(H × W × D)
Net mm 300 × 700 × 700 300 × 1,000 × 700
Gross 400 × 938 × 875 400 × 1,238 × 875
Weight Net kg 27 35
Gross 34 44
Connection pipe Size Liquid mm (in) Ø 6.35 (Ø 1/4) Gas Ø 9.52 (Ø 3/8) Ø 12.7 (Ø 1/2)
Method Flare
Drain port Material PVC
Size mm Ø 26 (I.D.), Ø 32 (O.D.)
Drain hose Material PVC
Size mm Ø 25 (I.D.), Ø 32 (O.D.)
Operation range Cooling °C 18 to 32 %RH 80 or less
Heating °C 16 to 30
Remote control (Option) Wired remote controller, Wireless remote controller, Mobile app*3 (FGLair™)
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.
– Standard static pressure; 35 Pa
– Pipe length: 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 operating current is the total current of the indoor unit and the 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: Available on Google Play™ store or on App Store®. Optional WLAN adapter is also required. For details, refer to the setting manual.
- 2 - 1. Specifications
DUCT TYPE ARXG12-22KHTAP DUCT TYPE ARXG12-22KHTAP

Specifications for ErP Lot10
Model name ARXG12KHTAP ARXG14KHTAP ARXG18KHTAP ARXG22KHTAP
Energy efficiency class Cooling A++ A++ A++ A++
Heating (Average) A+A+A+A+
Pdesign Cooling kW 3.5 (35°C) 4.3 (35°C) 5.2 (35°C) 6.0 (35°C)
Heating (Average) 3.4 (-10°C) 3.8 (-10°C) 4.4 (-10°C) 4.8 (-10°C)
SEER Cooling kWh/kWh 6.30 6.20 6.50 6.50
SCOP Heating (Average) 4.10 4.00 4.10 4.20
Annual energy consumption QCE kWh/a 194 243 280 323
QHE (Average) 1,159 1,328 1,501 1,597
Sound power level Cooling HIGH dB (A) 57 59 54 57
Heating 58 60 54 57
- 3 - 1. Specifications
DUCT TYPE ARXG12-22KHTAP DUCT TYPE ARXG12-22KHTAP

2. Dimensions
2-1. Models: ARXG12KHTAP and ARXG14KHTAP
Unit: mm
Air
Gas pipe
Drain port
Control box
Liquid pipe
Side view (L) Side view (R)
Top view
Front view
Rear view
- 4 -
2-1. Models: ARXG12KHTAP and ARXG14KHTAP 2. Dimensions
DUCT TYPE ARXG12-22KHTAP DUCT TYPE ARXG12-22KHTAP

2-2. Models: ARXG18KHTAP and ARXG22KHTAP
Unit: mm
Air
Side view (L) Top view
Front view
Rear view
Φ4.5
190
59
100 Φ4
Φ125
140
80
160
139
1,040
895
P100 ×8 = 800
53
47
25
25 700
49
1,000
49
762
P100 ×7 = 700 31
184
60 631
Gas pipe
Drain port
Control box
Liquid pipe
300
210
145
29
150
75
300
280
320
41
66
98
Φ4.5
21757
22
255
220
Side view (R)
- 5 -
2-2. Models: ARXG18KHTAP and ARXG22KHTAP 2. Dimensions
DUCT TYPE ARXG12-22KHTAP DUCT TYPE ARXG12-22KHTAP

2-3. Installation space requirement
Provide sufficient installation space for product safety.
¢Models: ARXG12KHTAP, ARXG14KHTAP, ARXG18KHTAP, and
ARXG22KHTAP
Floor
300 or more
150 or
more
20 or more
2,500 or more
(When no ceiling)
20 or more
Unit: mm
- 6 -
2-3. Installation space requirement 2. Dimensions
DUCT TYPE ARXG12-22KHTAP DUCT TYPE ARXG12-22KHTAP