FUJITSU AOYA18LAT3 Inverter Multi Air Conditioner Owner’s Manual

: September 14, 2024
: FUJITSU

Table of Contents

FUJITSU AOYA18LAT3 Inverter Multi Air Conditioner
Product Usage Instructions
SPECIFICATIONS
DIMENSIONS
REFRIGERANT SYSTEM DIAGRAM
CIRCUIT DIAGRAM
INDOOR PCB CIRCUIT DIAGRAM
OUTDOOR PCB CIRCUIT DIAGRAM
ERROR CONTENTS
DISASSEMBLY ILLUSTRATION
PARTS LIST
STANDARD ACCESSORIES
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FUJITSU AOYA18LAT3 Inverter Multi Air Conditioner

Specifications

Indoor Unit

Type: ASYA14LACM, ASYA18LACM
Cooling Capacity: 4.2 kW, 5.0 kW
Heating Capacity: 4.8 kW, 6.0 kW
Moisture Removal: 2.1 L/hr, 2.8 L/hr
Air Circulation: 700 m3/hr
Fan Motor Power Source: 230 V
Fan Speed (Cool/Heat): High, Med, Low, Quiet
Dimensions (H x W x D): 275 x 790 x 215 mm
Weight: 12 kg (Gross), 9 kg (Net)
Noise Level: High – 45 dB, Quiet – 26 dB

Outdoor Unit

Type: AOYA18LAT3, AOYA24LAT3
Cooling Capacity: 5.4 kW, 6.8 kW
Heating Capacity: 6.8 kW, 8.0 kW
Power Supply: 220V-240V, Frequency: 50 Hz
Running Current: Cooling – 5.9 A, Heating – 7.1 A
Input EER: Cooling – 1.35 kW, Heating – 1.62 kW
Air Circulation: High – 3,050 m3/hr, 3,300 m3/hr
Compressor Type: Hermetic type, Inverter, Twin Rotary
Dimensions (H x W x D): 700 x 900 x 330 mm
Weight: 55 kg (Net), 63 kg (Gross)
Refrigerant Charge (R410A): Total Pipe Length – 30.0 m, Full Charge Amount – 40.0 m

Product Usage Instructions

Installation
Follow the installation instructions provided in the user manual carefully to ensure proper setup of both indoor and outdoor units.

Operation

Power on the air conditioner using the remote control.
Select the desired mode (cooling or heating) and set the temperature using the remote control.
Adjust fan speed and airflow direction as needed for comfort.

Frequently Asked Questions (FAQ)

Q: How often should I clean the filters?
A: It is recommended to clean the filters every two weeks to maintain efficient operation.
Q: What should I do if the unit displays an error code?
A: Refer to the user manual for a list of error codes and troubleshooting steps. If the issue persists, contact customer support.

INVERTER MULTI
AIR CONDITIONER
WALL MOUNTED type

Models
Indoor unit Outdoor unit
ASYA14LACM AOYA24LAT3
ASYA14LACM
ASYA18LACM
AOYA18LAT3

SPECIFICATIONS

TYPE	COOL & HEAT
INDOOR UNIT	ASYA14LACM

ELECTRICAL DATA

COOLING CAPACITY	4.2 kW	5.0 kW
HEATING CAPACITY	4.8 kW	6.0 kW
MOISTURE REMOVAL	2.1 L/hr	2.8 L/hr
AIR CIRCULATION HIGH	700 m3/hr	700 m3/hr

FAN MOTOR

POWER SOURCE	230 V

FAN SPEED

( cool / heat )

| Discrimination| MFD-34ROM
High| 1,480 / 1,480 r.p.m.| 1,480 / 1,480 r.p.m.
Med| 1,250 / 1,250 r.p.m.| 1,250 / 1,250 r.p.m.
Low| 1,050 / 1,100 r.p.m.| 1,100 / 1,100 r.p.m.
Quiet| 850 / 950 r.p.m.| 950 / 950 r.p.m.
DIMENSIONS| H x W x D| 275 x 790 x| 215| mm
---|---|---|---|---
WEIGHT| Gross / Net| 12 / 9| kg

NOISE LEVEL

| High| 45 dB| 45 dB
---|---|---|---
Quiet| 26 dB| 28 dB

OUTDOOR UNIT

TYPE	Colling & Heating
MODEL NAME	AOYA18LAT3
COOLING CAPACITY	5.4 kW
HEATING CAPACITY	6.8 kW

ELECTRICAL SPECIFICATIONS

POWER SUPPLY	(220V) – 230V – (240V)
FREQUENCY	50 Hz

RUNNING CURRENT

| Cooling| 5.9 A| 8.5 A
Heating| 7.1 A| 8.8 A

INPUT

| Cooling| 1.35 kW| 1.94 kW
Heating| 1.62 kW| 2.00 kW

EER

COMPRESSOR

TYPE	Hermetic type, Inverter, 4 poles, 3-phase, DC motor, Twin Rotary
DISCRIMINATION	DA150A1F-20NA
REFRIGERANT R410	2,200 g

FAN MOTOR

DISCRIMINATION	MFE-60PO
HIGH SPEED (COOL)	730 r.p.m.
HIGH SPEED (HEAT)	660 r.p.m.
DIMENSIONS H x W x D	700 x 900 x 330 mm
---	---
WEIGHT Net / Gross	55 kg / 63 kg

REFRIGERANT CHARGE (R410A)

Total Pipe Length

FULL CHARGE AMOUNT

| 30.0 m| 2,200 g
---|---|---
40.0 m| 2,400 g
50.0 m| 2,600 g
ADDITIONAL CHARGE| 20 g / m
CHARGELESS| 30 m
MAX PIPE LENGTH (each unit)| 25 m
MAX PIPE LENGTH (total)| 50 m
MAX ELEVATION (between indoor units)| 10 m
MAX ELEVATION (between indoor and outdoor)| 15 m
MIN. PIPE LENGTH (each unit)| 5 m

DIMENSIONS

INDOOR UNIT
(unit : mm)

OUTDOOR UNIT
(Unit : mm)

REFRIGERANT SYSTEM DIAGRAM

OUTDOOR UNIT

CIRCUIT DIAGRAM

INDOOR UNIT

OUTDOOR UNIT

INDOOR PCB CIRCUIT DIAGRAM

CONTROL UNIT
ASYA14LACM : EZ-006WHSE
ASYA18LACM : EZ-006YHSE

CONTROLLER PCB ASSEMBLY
ASYA14LATM : K06AT-0603HSE-C1
ASYA18LATM : K06AT-0604HSE-C1

INDOOR UNIT

INDICATOR PCB ASSY
K02CB-0300HSD-D0

OUTDOOR PCB CIRCUIT DIAGRAM

INVERTER ASSEMBLY
AOYA18LAT3 : EZ-006KHUE
AOYA24LAT3 : EZ-0068HUE

OUTDOOR UNIT
POWER SUPPLY PCB A
SSEMBLY K04BA-0505HUE-P0

ERROR CONTENTS

INDOOR UNIT

Error contents

| Error display Indoor unit LED
---|---
OPERATION

(Red)

| TIMER

(Green)

| AIR CLEAN or QUIET

(Green)

| COIL DRY

(Orange)

Communication error| Indoor unit – Outdoor unit| off| 2 – 5

flashes

| off| off

Indoor unit temperature error

Outdoor unit temperature error

Indoor unit control system error

Outdoor unit control system error

Indoor unit fan motor error

Refrigerant system error

flashes

OUTDOOR UNIT LEDS

| LED A| LED B| LED C
---|---|---|---
Communication error (indoor unit A to outdoor unit)| 1 time| |
Communication error (indoor unit B to outdoor unit)| | 1 time|
Communication error (indoor unit C to outdoor unit)| | | 1 time
Discharge pipe temperature sensor| 2 times| |
Outdoor heat exchanger temperature sensor| 3 times| |
Outdoor temperature sensor| 4 times| |
Outdoor 2way valve(A) temperature sensor| 5 times| |
Outdoor 2way valve(B) temperature sensor| | 5 times|
Outdoor 2way valve(C) temperature sensor| | | 5 times
Outdoor 3way valve(A) temperature sensor| 6 times| |
Outdoor 3way valve(B) temperature sensor| | 6 times|
Outdoor 3way valve(C) temperature sensor| | | 6 times
Compressor temperature sensor| 7 times| |
Heatsink temperature sensor| 8 times| |
Pressure switch A abnormal| 9 times| |
Pressure switch B abnormal| 10 times| |
Indoor unit connection capacity error| 11 times| |
IPM error| 12 times| |
Comoressor loter location error| 13 times| |
Compressor can not start to operate| 14 times| |
Outdoor fan (upper) motor error| 15 times| |
Outdoor fan (lower) motor error| 16 times| |
Microcomputer error| 17 times| |
4way valve (Solenoid) abnormal| 18 times| |

DISASSEMBLY ILLUSTRATION

INDOOR UNIT

OUTDOOR UNIT

OUTDOOR UNIT
INVERTER ASSY

PARTS LIST

INDOOR UNIT

Ref. No.|

Description

| Part No.| Ord. Q’ty
---|---|---|---
ASYA14LACM| ASYA18LACM
1| Air Filter| 9309997011| 9309997011|
4| Electric Filter Holder| 9306602017| 9306602017
5| Clamper (Grille)| 9306755010| 9306755010
6| Front Panel| 9309999053| 9309999053
7| Intake Grille Assy| 9313131128| 9313131128
9| Air Clean Filter Assy| 9312152018| 9312152018
20| Gear-A| 9309994003| 9309994003
21| Casing Assy| 9311354116| 9311354116
24| Crossflow Fan Assy| 9307836015| 9307836015
26| Clamp (Motor)| 9310102008| 9310102008
27| Shaft Holder-C Assy| 9306628017| 9306628017
28| Drain Hose Assy| 9314147012| 9314147012
29| Drain Cap Assy| 9314493010| 9314493010
30| Wire Clamper| 9313944018| 9313944018
31| Holder (Room Thermistor)| 9311948018| 9311948018
32| Cover (Switch)| 9313943011| 9313943011
33| Evaporator Total Assy| 9313099015| 9313099015
36| Joint Pipe Assy| 9313104030| 9313792015
37| Insulation (Pipe)-E| 9304607007| 9304607007
38| Holder (Evaporator)-L| 9309982017| 9309982017
39| Holder (Evaporator)-R| 9309983014| 9309983014
40| Water Seal| 9312912018| 9312912018
43| Terminal| 9701955114| 9701955114
46| Step Motor| 9900139025| 9900139025
48| Fan Motor Assy| 9602109012| 9602109012
50| Remote Control Holder| 9305642045| 9305642045
51| Remote Control Unit| 9315027030| 9315027030
61| Louver U Assy| 9312368020| 9312368020
62| Louver Z Assy| 9312369027| 9312369027
70| Controller PCB Assy| 9707404043| 9707404050
—| Pipe Temperature Thermistor| 9702039042| 9702039042
—| Room Temperature Thermistor| 9700801108| 9700801108
—| Indicator PCB Assy| 9705039032| 9705039032
—| Evaporator B Assy| ——| 9311275022

OUTDOOR UNIT

Ref. No.	Description	Part No.	Ord. Q’ty

AOYA18LAT3 AOYA24LAT3
1| Top Panel Sub Assy| 9374417049|
2| Front Panel Sub Assy| 9374414048
5| Service Panel Sub Assy| 9374415045
6| Right Panel Sub Assy| 9374416103
7| Valve Cover Sub Assy| 9374827015
10| Motor Bracket Sub Assy| 9374418060
11| Propeller Fan Assy| 9366378020
12| Motor. DC Brushless| 9601882015
13| Condenser A Assy| 9374433179
14| Separate Wall Assy SS| 9375226022
15| Base Assy| 9374166121
17| Coil. Choke| 9900366018
18| Cap Foot| 9374345014
19| Compressor Assy| 9315297037
20| 4-Way Valve Assy| 9374425136
21| Inlet Pipe (Cond) A Assy| 9373461104
22| Outlet Pipe (Cond) A Assy| 9374266111
23| Pressure Switch A| 9900186012
24| Pressure Switch B| 9900341015
25| Accumulator Assy| 9375250027
26| Receiver Tank Assy| 9374575039
27| Valve Plate A Assy| 9374628148
28| Pulse Motor Valve| 9900056025
30| 3-Way Valve Assy (1/2″)| 9375104016
31| 3-Way Valve Assy (3/8″)| 9375103019
32| 2-Way Valve Assy| 9375102012
33| Coil (Expansion Valve) (A=Red)| 9900057084
34| Coil (Expansion Valve) (B=White)| 9900057053
35| Coil (Expansion Valve) (C=Green)| 9900057060
37| Rubber Cushion (For Comp)| 9312680016
38| Net S Protective| 9375381028
39| Thermistor Holder| 9377911018
43| Inverter Box A| 9374603015
44| Inverter Box B Assy| 9374625024
Ref. No.|

Description

| Part No.| Ord. Q’ty
---|---|---|---
AOYA18LAT3 AOYA24LAT3
45| Inverter Box C| 9375140014|
46| Inverter Box Duct| 9374609017
47| Inverter Box Cover| 9375139018
48| Heat Sink A| 9375138011
49| Inverter Box D| 9374606023
52| Terminal (3P)| 9900203016
53| Terminal (6P)| 9900016036
53-1| Terminal (3P)| 9306489045
54| Fuse Holder (Big)| 0501454012
55| Fuse Holder (Small)| 0501456016
56| Fuse (Big)| 0600086039
57| Fuse (Small)| 0600376116
58| Terminal (2P)| 9701971015
59| ACTPM| 9703457012
60| Power Supply PCB Assy| 9705647091
61| Controller PCB Assy (AOYA18L)| 9705642225
61| Controller PCB Assy (AOYA24L)| 9705642195
62| Holder (Thermo)| 9372797013
63| Heat Sink Thermistor| 9900311018
64| Compressor Temp Thermistor| 9900156053
65| Thermistor (Outdoor Temp)| 9900378028
66| Heat Exchanger Thermistor| 9900374020
67| Discharge Temp Thermistor| 9704219039
68| Wire (Pressure Sw) (Red)| 9377823014
69| Wire (Pressure Sw) (White)| 9377823021
70| Solenoid| 9900165079
71| Thermistor (Pipe)(White)| 9900373030
72| Thermistor (Pipe)(Red)| 9900372019
73| Compressor Plate Assy| 9375221058
74| Water Seal Plate| 9375222017
75| Thermo Holder| 9375211011
76| Compressor Cover A| 9374430093
77| Compressor Cover B| 9374431090
78| Compressor Cover C| 9372067079
—| Emblem Rear| 9351355005