Fujitsu ARTG30LHTA Original operating manual

SPLIT TYPE
ROOM AIR CONDITIONER
DUCT type
Models Indoor unit Outdoor unit
ARTG30LHTA
ARTG36LHTA
ARTG45LHTA
ARTG54LHTA
AOTG30LATL
AOTG36LATL
AOTG45LATL
AOTG54LATL
INVERTER
SERVICE
INSTRUCTION
R410A

CONTENTS
1. SPECIFICATIONS
1. DESCRIPTION OF EACH CONTROL OPERATION
1-1-1 COOLING CAPACITY CONTROL......................................................................
1-1 COOLING OPERATION............................................................................................
1-4 AUTO CHANGEOVER OPERATION........................................................................
1-5 INDOOR FAN CONTROL.........................................................................................
1-6 OUTDOOR FAN CONTROL......................................................................................
1-7 COMPRESSOR CONTROL......................................................................................
01-01
01-01
1-2-1 HEATING CAPACITY CONTROL......................................................................
1-2 HEATING OPERATION............................................................................................. 01-02
01-02
1-3-1 INDOOR UNIT CONTROL.................................................................................
1-3 DRY OPERATION...................................................................................................... 01-03
01-03
01-04
01-06
01-08
01-09
1-8 TIMER OPERATION CONTROL............................................................................... 01-10
1-9 ELECTRONIC EXPANSION VALVE CONTROL...................................................... 01-12
1-10 TEST OPERATION CONTROL............................................................................... 01-12
1-11 PREVENT TO START FOR 3 MINUTES (3 MINUTES ST).................................... 01-12
1-12 4-WAY VALVE EXTENSION SELECT.................................................................... 01-12
1-13
AUTO RESTART..................................................................................................... 01-14
1-14
PUMP DOWN.......................................................................................................... 01-13
1-15 COMPRESSOR PREHEATING............................................................................... 01-14
1-16 MINIMUM HEAT OPERATION................................................................................ 01-14
1-20 VARIOUS PROTECTIONS...................................................................................... 01-18
1-21 COMPRESSOR STOP CONTROL.......................................................................... 01-20
1-19 OFF DEFROST OPERATION CONTROL............................................................... 01-17
6. REFRIGERANT CAUTION -R410A-
3. DISASSEMBLY PROCESS
2-1-2 OUTDOOR UNIT DISPLAY................................................................................
2-1-1 WIRED REMOTE CONTROLLER DISPLAY......................................................
2-1 ERROR DISPLAY......................................................................................................
2. TROUBLE SHOOTING
2-2 TROUBLE SHOOTING WITH ERROR CODE..........................................................
2-3 TROUBLE SHOOTING WITH NO ERROR CODE....................................................
2-4 SERVICE PARTS INFORMATION............................................................................
02-01
02-01
02-03
02-30
02-04
02-35
DISASSEMBLY PROCESS( FOR ARTG45 / 54LHTA )............................................ 03-01
1-18 DEFROST OPERATION CONTROL....................................................................... 01-15
1-17 ECONOMY OPERATION........................................................................................ 01-14
1-22 DESCRIPTION OF DISPLAY UNIT......................................................................... 01-21

2 . TROUBLE SHOOTING
R410A
DUCT type
INVERTER

Indoor Room Thermistor Error
Wired Remote Controller
Communication Error
Error Contents Trouble
shooting
02-01
2 ERROR DISPLAY
2-1 INDOOR UNIT AND WIRED REMOTE CONTROLLER DISPLAY
Serial Communication Error
Indoor Unit Fan Motor1 Error
Indoor Heat Ex. Thermistor Error
Drainage Error
1,2
3
4
5
6
7
8
9
1- 9
10
11
12
13
IPM Error
Error
Code
11
12
39
41
42
51
53
59
5U
63
65
71
72
Fan Motor Driving Circuit Error
Indoor Unit Error
Inverter Error
Indoor Unit Fan Motor2 Error
Error Contents Trouble
shooting
17
18
19
20
21
22
23
24
25
26
Error
Code
84
86
94
95
97
98
99
A1
A3
A5
Over Current Error
Discharge Thermistor Error
Current sensor Error
Pressure sensor Error
Compressor Thermistor Error
W
AR-WAF1E
AR-WDD1E
hen "Er" in Temperature Display is displayed, inspection of the air conditioning system is necessary.
Please consult authoilzed service personnel.
1. SELF - DIAGNOSIS
SU
MO
TU
WE
TH FR
SA
Unit number (usually 0)
Error code
ex. Self-diagnosis check
Compressor Control Error
Outdoor Unit Fan Motor 1 Error
Outdoor Unit Fan Motor 2 Error
4-way Valve Error
Discharge Temp. Error
Compressor Temp. Error
Low Pressure Error
When there is an error on the indoor unit:
Code : Er 41.1
R.C. address : 00
Error
Mo
10:00
Monitor
Code : XXXXXX
R.C. address : 00
Error
Mo
10:00
Monitor
Error code*
Address number of the
relevant indoor unit
a 1 digit number.
Installation manual of the indoor unit.
14
15
16
73
74
77
Outdoor Thermistor Error
Heat Sink Thermistor Error
Heat Ex. Liquid Outlet
Thermistor Error

02-02
2. ERROR CODE HISTORY DISPLAY
Up to 16 memorized error codes may be displayed for the indoor unit connected to the remote controller.
1. Stop the air conditioner operation.
2. Press the SET TEMPERATURE buttons , simultaneously for 3 seconds
or more to start the self-diagnosis.
4. Press the SET TEMPERATURE buttons , simultaneously for 3 seconds or more
or there is no key input for 60 seconds to stop the display.
3. Press the SET TEMPERATURE button to select the error history number.
SU MO TU WE TH FR SA
Error code
Error history number
0 1 2 3 4 5 6 7
F E d c b A 9 8


Lower Raise

2. ERROR DETECTION
1. OUTDOOR UNIT Indicator PCB
Display when an error occurs.
POWER ERROR
PUMP
DOWN
LOW
NOISE
PEAK
CUT
MODE (L1) (L2) (L3) (L4) (L5) (L6)
Blink
(Hi speed)
Check that the “ERROR” LED blinks, then press the [Enter] button once.
For details, refer to the following table.
02-03
LEDs
Buttons
2-1-2 OUTDOOR UNIT DISPLAY
Error Contents POWER
MODE ERROR
Serial forward transfer error(after operation)
2
2
2
2
2
2
2
2
2
2
21
(L1) (L2) (L6)(L5)(L4)(L3)
IPM Error
Indoor Unit Error
Inverter Error
Over Current Error
Discharge Thermistor Error
Outdoor Thermistor Error
Heat Sink Thermistor Error
Current sensor Error
Pressure sensor Error
Heat Ex. Liquid Middle
Thermistor Error
Compressor Thermistor Error
Compressor Control Error
Outdoor Unit Fan Motor 1 Error
Outdoor Unit Fan Motor 2 Error
4-way Valve Error
Discharge Temp. Error
Compressor Temp. Error
Low Pressure Error
2
2
2
2
2
2
2
2
2
2
2
1
1 1
5
6 3
6 5
7 1
7 2
7 3
7 3
7 4
7 7
8 4
8 6
8 6
9 4
9 5
9 7
9 8
9 9
10 1
10 3
10 5
15
Serial forward transfer error(during operation)
Heat Ex. Liquid Outlet
Thermistor Error
High Pressure Switch Error
LED DISPLAY
PUMP
DOWN
LOW
NOISE
PEAK
CUT
Trouble
shooting
2
1 - 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
1 ~ : 1~ 15 Times Blinking15
: Light ON: Light OFF 2 : 2 Times Blinking

Trouble shooting 1
OUTDOOR UNIT Error Method:
Detective Actuators: Detective details:
Forecast of Cause:
OK
Indicate or Display:
Refer to error code table.
YESYES
NO
Serial Communication Error
(Serial Reverse Transfer Error)
Outdoor unit Main PCB
Outdoor unit Fan motor
1. Connection failure 2. External cause 3. Main PCB failure 4. Active filter module failure
5. Transistor PCB (IPM) failure 6. Filter PCB failure 7. Outdoor unit Fan motor failure
Check Point 1-1 : Reset the power and operate
Does error indication reappear?
Check Point 1-2 : Check external cause such as noise
Check if the ground connection is proper.
Check if there is any equipment that causes harmonic wave
near the power cable (Neon light bulb or any electronic
equipment which causes harmonic wave).
Check Point 2 : Check connection
Check any loose or removed connection line of
between indoor unit and outdoor unit.
>> If there is an abnormal condition, correct it by
referring to Installation Manual or Data &
Technical Manual.
Check connection condition in control unit.
(If there is loose connector, open cable or mis-wiring)
Check Point 3 : Check the voltage of power supply
Check the voltage of power supply
>> Check if AC198V(AC220V-10%) - 264V(AC240V+10%) appears
at outdoor unit terminal L - N.
When the indoor unit cannot receive the serial signal from Outdoor unit
more than 2minutes after power ON, or the indoor unit cannot receive
the serial signal more than 15seconds during normal operation.
02-04
2-2 TROUBLE SHOOTING WITH ERROR CODE
OK
Check Point 4 : Check serial signal (Reverse transfer signal)
Check serial signal (Reverse transfer signal)
>> Check if indicated value swings between AC70V and AC130V at outdoor unit terminal 1 - 3.
>> If it is abnormal, Check the parts as follows.
- Outdoor unit fan motor (PARTS INFORMATION 5)
- Active filter module (PARTS INFORMATION 4)
- Transistor PCB (IPM) (PARTS INFORMATION 7)
- Filter PCB (Check the wire of CN110)
>> If Outdoor fan motor is abnormal, replace Outdoor unit fan motor and Main PCB.
>> If Active filter module or IPM is abnormal, replace it.
>> If the parts are normal, replace Main PCB.
1
2
3
L
N
RED
WHITE
BLACK
BLACK
WHITE
+
-

Trouble shooting 2
INDOOR UNIT Error Method:
Detective Actuators: Detective details:
Forecast of Cause:
OK
Indicate or Display:
Refer to error code table.
YESYES
NO
OK
Serial Communication Error
(Serial Forward Transfer Error)
Indoor unit Controller PCB
1. Connection failure 2. External cause 3. Controller PCB failure
Check Point 1-1 : Reset the power and operate
Does error indication reappear?
Check Point 1-2 : Check external cause such as noise
Check if the ground connection is proper.
Check if there is any equipment that causes harmonic wave
near the power cable (Neon light bulb or any electronic
equipment which causes harmonic wave).
Check Point 2 : Check connection
Check any loose or removed connection line of
between indoor unit and outdoor unit.
>> If there is an abnormal condition, correct it by
referring to Installation Manual or Data &
Technical Manual.
Check connection condition in control unit.
(If there is loose connector, open cable or mis-wiring)
Check Point 3 : Check the voltage of power supply
Check the voltage of power supply
>> Check if AC198V(AC220V-10%) - 268V(AC240V+10%) appears
at outdoor unit terminal L - N.
Check Point 4 : Check serial signal (Forward transfer signal)
Check serial signal (Forward transfer signal)
>> Check if indicated value swings between AC70V and AC130V at outdoor unit terminal 2 - 3.
>> If it is abnormal, replace Controller PCB.
When the outdoor unit cannot properly receive the serial signal from
indoor unit for 10 seconds or more.
02-05
1
2
3
L
N
RED
WHITE
BLACK
BLACK
WHITE
+
-

Trouble shooting 3
INDOOR UNIT Error Method:
Detective Actuators: Detective details:
Forecast of Cause:
Check Point 2 : Check Wired Remote Controller and Controller PCB
Check Point 1 : Check the connection of terminal
OKOK
Indicate or Display:
Wired Remote Controller
Communication Error
Indoor unit Controller PCB
Wired Remote Controller (Option)
1. Connection failure 2. Wired Remote Controller failure 3. Controller PCB failure
Check & correct the followings.
Check the connection of terminal between Wired Remote Controller and indoor unit,
and check if there is a disconnection of the cable.
When the indoor unit cannot properly receive the signal from
Wired Remote Controller for 1 minute or more.
02-06
Refer to error code table.
>> If it is DC13V, Remote Control is failure. (Controller PCB is normal) >> Replace Remote Control
>> If it is DC 0V, Controller PCB is failure. (Check Remote Control once again) >> Replace Controller PCB
Check Voltage at CN14(ARTG30/36LHTA),CN140(ARTG45/54LHTA) of Controller PCB. (terminal 1-3)
(Power supply to Remote Control)

Trouble shooting 4
INDOOR UNIT Error Method:
Indicate or Display:
Detective Actuators: Detective details:
Forecast of Cause :
Fan Motor Drive Circuit Error
Indoor Unit Power Supply PCB When a momentary power cut off.
When do not start fan motor.
1. External cause 2. Conenection of connector failure 3. Power Supply PCB failure
Check Point 3 : Replace Power supply PCB
If Check Point 1, 2 do not improve the symptom, replace Power supply PCB.
02-07
Refer to error code table.
OKOK
Check Point 2 : Check connection of Connector
Check if connector is removed.
Check erroneous connection.
Check if cable is open.
>>Upon correcting the removed connector or mis-wiring, reset the power.
Check Point 1 : Check external cause at Indoor and Outdoor (Voltage drop or Noise)
Instant drop : Check if there is a large load electric apparatus in the same circuit.
Momentary power failure : Check if there is a defective contact or leak current
in the power supply circuit.
Noise : Check if there is any equipment causing harmonic wave near electric line.
(Neon bulb or electric equipment that may cause harmonic wave)
Check the complete insulation of grounding.
OKOK