Fujitsu AOHG18KLCA Service manual

AIR CONDITIONER
Wall mounted type
DESIGN & TECHNICAL MANUAL
INDOOR
ASHG18KLCA
ASHG24KLCA
OUTDOOR
AOHG18KLCA AOHG24KLCA
DR_AS128EG_01
2020.03.26

Notices:
• Product specifications and design are subject to change without notice for future improvement.
• For further details, please check with our authorized dealer.
Copyright © 2020 Fujitsu General Limited. All rights reserved.

CONTENTS
Part 1. INDOOR UNIT...........................................................................1
1. Specifications................................................................................................2
2. Dimensions....................................................................................................4
2-1. Models: ASHG18KLCA and ASHG24KLCA ....................................................................4
3. Wiring diagrams ............................................................................................6
3-1. Models: ASHG18KLCA and ASHG24KLCA ....................................................................6
4. Capacity table................................................................................................7
4-1. Cooling capacity...............................................................................................................7
4-2. Heating capacity ..............................................................................................................8
5. Fan performance ...........................................................................................9
5-1. Air velocity distributions....................................................................................................9
5-2. Airflow ............................................................................................................................11
6. Operation noise (sound pressure).............................................................13
6-1. Noise level curve............................................................................................................13
6-2. Sound level check point .................................................................................................14
7. Safety devices .............................................................................................15
8. Remote controller .......................................................................................16
8-1. Wireless remote controller .............................................................................................16
9. Function settings ........................................................................................18
9-1. Function settings by using remote controller..................................................................18
9-2. Custom code setting for wireless remote controller........................................................22
10. Accessories.................................................................................................23
10-1.Models: ASHG18KLCA and ASHG24KLCA .................................................................23

Part 2. OUTDOOR UNIT.....................................................................25
1. Specifications..............................................................................................26
2. Dimensions..................................................................................................27
2-1. Model: AOHG18KLCA ...................................................................................................27
2-2. Model: AOHG24KLCA ...................................................................................................28
3. Installation space ........................................................................................29
3-1. Models: AOHG18KLCA and AOHG24KLCA..................................................................29
4. Refrigerant circuit .......................................................................................32
4-1. Model: AOHG18KLCA ...................................................................................................32
4-2. Model: AOHG24KLCA ...................................................................................................33
5. Wiring diagrams ..........................................................................................34
5-1. Model: AOHG18KLCA ...................................................................................................34
5-2. Model: AOHG24KLCA ...................................................................................................34
6. Capacity compensation rate for pipe length and height difference........35
6-1. Model: AOHG18KLCA ...................................................................................................35
6-2. Model: AOHG24KLCA ...................................................................................................36
7. Additional charge calculation ....................................................................37
7-1. Model: AOHG18KLCA ...................................................................................................37
7-2. Model: AOHG24KLCA ...................................................................................................37
8. Airflow..........................................................................................................38
8-1. Model: AOHG18KLCA ...................................................................................................38
8-2. Model: AOHG24KLCA ...................................................................................................38
9. Operation noise (sound pressure).............................................................39
9-1. Noise level curve............................................................................................................39
9-2. Sound level check point .................................................................................................40
10. Electrical characteristics............................................................................41
11. Safety devices .............................................................................................42
12. Accessories.................................................................................................43
12-1.Models: AOHG18KLCA and AOHG24KLCA.................................................................43
CONTENTS (continued)

Part 1. INDOOR UNIT
WALL MOUNTED TYPE:
ASHG18KLCA
ASHG24KLCA

1. Specifications
Type
Wall mounted
Inverter heat pump
Model name ASHG18KLCA ASHG24KLCA
Power supply 230 V ~ 50 Hz
Available voltage range 198—264 V
Capacity
Cooling
Rated kW 5.20 7.10
Btu/h 17,700 24,200
Min.—Max. kW 0.9—5.5 0.9—7.7
Btu/h 3,000—18,700 3,000—26,200
Heating
Rated kW 6.30 8.00
Btu/h 21,400 27,200
Min.—Max. kW 0.6—7.6 0.9—9.0
Btu/h 2,000—25,900 3,000—30,700
Input power
Cooling Rated
kW
1.685 2.42
Min.—Max. 0.14—2.09 0.18—2.74
Heating Rated 1.800 2.225
Min.—Max. 0.10—1.93 0.15—2.66
Fan
HIGH
W
32 57
MED 25 34
LOW 16 17
QUIET 10 10
Current Cooling Rated A 7.5 10.9
Heating 8.0 10.4
EER Cooling kW/kW 3.09 2.93
COP Heating 3.50 3.60
Sensible capacity Cooling kW 3.93 4.92
Power factor Cooling %98.0
Heating 98.0
Moisture removal L/h (pints/h) 1.9 (3.3) 3.1 (5.5)
Maximum operating current *1 Cooling A9.5 13.5
Heating 13.5 17.5
Fan
Airflow rate
Cooling
HIGH
m3/h
865 1,040
MED 780 880
LOW 665 685
QUIET 555 555
Heating
HIGH 995 1,040
MED 810
LOW 700 695
QUIET 590 585
Type × Q'ty Crossflow fan × 1
Motor output W 61
Sound pressure level *2
Cooling
HIGH
dB (A)
47 51
MED 44 45
LOW 40 38
QUIET 35 33
Heating
HIGH 50 52
MED 45 45
LOW 41 41
QUIET 37 37
Heat exchanger type
Dimensions (H × W × D) mm
Main: 384 × 630 × 20.0
Sub: 126 × 630 × 13.30
Main: 384 × 630 × 20.0
Sub1: 84 × 630 × 13.30
Sub2: 126 × 630 × 13.30
Fin pitch Man: 1.1, Sub: 1.4 Man: 1.1, Sub1: 1.4, Sub2: 1.4
Rows × Stages Main: 2 × 24, Sub: 1 × 6 Main: 2 × 24, Sub1: 1 × 4, Sub2: 1 × 6
Pipe type Copper tube
Fin type Aluminum
Enclosure
Material Polystyrene
Color White
Approximate color of Munsell N 9.25/
Dimensions
(H × W × D)
Net mm 293 × 790 × 249
Gross 320 × 840 × 375
Weight Net kg 9.5 10.0
Gross 12.0 12.5
Connection pipe Size Liquid mm (in) Ø 6.35 (Ø 1/4) Ø 6.35 (Ø 1/4)
Gas Ø 9.52 (Ø 3/8) Ø 12.70 (Ø 1/2)
Method Flare
Drain hose Material PP+HDPE
Tip diameter mm Ø 13.8 (I.D.), Ø 15.8 to Ø 16.7 (O.D.)
Operation range Cooling °C 18 to 32
%RH 80 or less
Heating °C 16 to 30
Remote controller type Wireless
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: 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 is maximum value when operated within the operation range.
• *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.
- 2 - 1. Specifications
WALL MOUNTED ASHG18, 24KLCA WALL MOUNTED ASHG18, 24KLCA

Specifications for ErP Lot10
Model name ASHG18KLCA ASHG24KLCA
Energy efficiency class Cooling A++
Heating (Average) A+
Pdesign Cooling kW 5.2 (35 °C) 7.1 (35 °C)
Heating (Average) 4.8 (-10 °C) 7.1 (-10 °C)
SEER Cooling kWh/kWh 7.20 7.10
SCOP Heating (Average) 4.30 4.00
Annual energy consumption QCE kWh/a 253 350
QHE (Average) 1,563 2,485
Sound power level Cooling HIGH dB (A) 60 64
Heating 65 65
- 3 - 1. Specifications
WALL MOUNTED ASHG18, 24KLCA WALL MOUNTED ASHG18, 24KLCA

2. Dimensions
2-1. Models: ASHG18KLCA and ASHG24KLCA
Unit: mm
790
736
249
2.0
293
2687 18
22847
363373
18
450 135
37
Outline of indoor unit
for pipe inlet Ø65
for pipe inlet Ø65
330327 70
63
- 4 -
2-1. Models: ASHG18KLCA and ASHG24KLCA 2. Dimensions
WALL MOUNTED ASHG18, 24KLCA WALL MOUNTED ASHG18, 24KLCA

¢Installation space requirement
Provide sufficient installation space for product safety.
Unit: mm
Wall hook bracket
Outline of the indoor unit
65 or more
83 or more
52 or more 48 or more
70 or more
1,500 or more
1,800 or more
85 or more
The flare connection
part should be installed
outdoors.
- 5 -
2-1. Models: ASHG18KLCA and ASHG24KLCA 2. Dimensions
WALL MOUNTED ASHG18, 24KLCA WALL MOUNTED ASHG18, 24KLCA

3. Wiring diagrams
3-1. Models: ASHG18KLCA and ASHG24KLCA
- 6 -
3-1. Models: ASHG18KLCA and ASHG24KLCA 3. Wiring diagrams
WALL MOUNTED ASHG18, 24KLCA WALL MOUNTED ASHG18, 24KLCA