FUJITSU ARYG45LHTA Split Type Air Conditioner Duct Type Owner’s Manual

SPLIT TYPE
AIR CONDITIONER
DUCT TYPE (50Hz)
Service manual

ARYG45LHTA Split Type Air Conditioner Duct Type

SPECIFICATIONS

ELECTRICAL DATA

INPUT WATTS

| Cooling| 4.06 kW| 4.65 kW
Heating| 3.67 kW| 4.37 kW
E.E.R.                         Cooling| 3.08 kW/kW| 3.01 kW/kW
C.O.P.                        Heating| 3.81 kW/kW| 3.66 kW/kW
MOISTURE REMOVAL| 1.5 L/hr| 2.5 L/hr
AIRCIRCULATION INDOOR| 3,350 m3/h| 3,350 m3/h
AIRCIRCULATION OUTDOOR| Cooling| 6,750 m3/h| 6,900 m3/h
Heating| 6,200 m3/h| 6,900 m3/h
MAXIMUM CURRENT| 11.0 A| 12.0 A

FAN MOTOR

INDOOR UNIT

| High| 1,300 r.p.m.
Medium| 1,150 r.p.m.
Low| 1,000 r.p.m.
OUTDOOR UNIT, Discrimination| MFE-54VVT
OUTDOOR UNIT

Cooling

| Upper fan| 850 r.p.m.| 900 r.p.m.
Lower fan| 800 r.p.m.| 800 r.p.m.
OUTDOOR UNIT

Heating

| Upper fan| 780 r.p.m.| 870 r.p.m.
Lower fan| 750 r.p.m.| 840 r.p.m.

NOISE LEVEL

INDOOR UNIT

| High| 47 dB
---|---|---
Medium| 43 dB
Low| 40 dB

OUTDOOR UNIT

| Cooling| 54 dB| 55 dB
Heating| 54 dB| 56 dB

COMPRESSOR AND REFRIGERANT

DIMENSIONS

WEIGHT

DIMENSIONS

OUTDOOR UNIT
(unit : mm)

REFRIGERANT SYSTEM DIAGRAM

CIRCUIT DIAGRAM

OUTDOOR PCB CIRCUIT DIAGRAM

INVERTER ASSEMBLY
AOYG45LATT : EZ-0111WHUE
AOYG54LATT : EZ-0111YHUE

OUTDOOR UNIT

MAIN PCB
AOYG45LATT : K07AK-1101HUE-C1
AOYG54LATT : K07AK-1102HUE-C1 OUTDOOR UNIT
TRANSISTOR PCB
K11CA-1200HUE-TR1

OUTDOOR UNIT
ACTIVE FILTER PCB – 1
K-11BZ-1100HUE-AF0 OUTDOOR UNIT
ACTIVE FILTER PCB – 2
K11BZ-1100HUE-AF0 OUTDOOR UNIT
FILTER PCB
K07AQ-0700HUE-FL0

OUTDOOR UNIT
CAPACITOR PCB
K07AP-0700HUE-P0

ERROR DETECTION

WIRED REMOTE CONTROL
This is possible only on a wired remote control.
If an error occurs, the following display will be shown.
(“Er” will appear in the set room temperature display.)

: 0.5s on / 0.5s off
: 0.1s on / 0.1s off
( ) : Number of flashing

Code

|

Description

---|---
| Serial communication error
| Wired remote control communication error
| Check run unfinished
| Unit number or Refrigerant circuit address setting error [Simultaneous Multi]
| Indoor unit capacity error
| Combination error
| • Connection unit number error (indoor slave unit) [Simultaneous Multi] • Connection unit number error (indoor unit or branch unit) [Flexible Multi]
| Master unit, slave unit set-up error [Simultaneous Multi]
| Power supply interruption error
| Indoor unit PCB model information error
| Manual auto switch error
| Room temp. sensor error
| Indoor unit Heat Ex. Middle temp. sensor error
| Indoor unit fan motor error
| Drain pump error
| Damper error
| Indoor unit error
| Outdoor unit main PCB model information error or communication error
| Inverter error
| Active filter error, PFC circuit error
| Trip terminal L error
| Display PCB microcomputers communication error
| Discharge temp. sensor error
---|---
| Compressor temp. sensor error
| Outdoor unit Heat Ex. liquid temp. sensor error
| Outdoor temp. sensor error
| Suction gas temp. sensor error
| • 2-way valve temp. sensor error
• 3-way valve temp. sensor error
| Heat sink temp. sensor error
| • Sub-cool Heat Ex. gas inlet temp. sensor error
• Sub-cool Heat Ex. gas outlet temp.sensor error
| Liquid pipe temp. sensor error
| Current sensor error
| • Discharge pressure sensor error
• Suction pressure sensor error
• High pressure switch error
| Trip detection
| Compressor rotor position detection error (permanent stop)
| Outdoor unit fan motor 1 error
| Outdoor unit fan motor 2 error
| 4-way valve error
| Coil (expansion valve) error
| Discharge temp. error
| Compressor temp. error
| High pressure error
| Low pressure error
| Branch boxes error [Flexible Multi]

OUTDOOR UNIT
TEST RUN
CAUTION
Always turn on the power 6 hours prior to the start of the operation in order to protect the compressor.

1. Check items before performing the test run Make sure to perform the test run.
Before performing the test run, be sure to check the following points.

1. Is gas leaking?
   Check connection of each pipe (flare connection part, brazing part).

2. Is a breaker installed to the power cable of the outdoor unit ?

3.  Has each cable been securely connected to the terminal according to the specifications ?

4.  Are the 3-way valves (gas pipes and liquid pipes) of the outdoor units open?

5. Has the power been supplied to the unit for at least 6 hours ?

6. Has the necessary local setting been done ?

7. Check insulation resistance of 1 M or more using a 500V mega tester.

If no problems are found with the above items, perform the test run according to “Test run method”.
If any problems are found, immediately resolve the problem and re-check the items.

2. Test run method
CAUTION
If the test run is performed for 1 outdoor unit in a group control system installation, the test run will also be performed for the other units. Therefore, make sure that all of the units have been installed before starting a test run.
(Group control system installation described in “SPECIAL INSTALLATION METHODS” in the installation manual of the indoor unit.)
Operate [ENTER] (TEST RUN) switch on the display board by the following procedure.

2.1. Operating procedures for the test run
(1) Check the 3-way valves (both at the liquid side and gas side) are opened.
(2) Set the operation mode to “COOL” or “HEAT”.

POWER| ERROR| TEST RUN
(L1)| PUMP DOWN
(L2)| LOW NOISE
(L3)    (L4)| PEAK CUT
(L5)     (L6)  (L7)
---|---|---|---|---|---
MODE
| | | | | | | |

In the first test run, be sure to set the operation mode to “COOL”.
The operation mode cannot be switched between “COOL” and “HEAT” during the test run. To switch the operation mode between “COOL” and “HEAT”, stop the test run, switch the operation mode, and then start the test run again.
(3) Press [ENTER] (TEST RUN) switch for more than 3 seconds.

POWER| ERROR| TEST RUN
(L1)| PUMP DOWN
(L2)| LOW NOISE
(L3)    (L4)| PEAK CUT
(L5)     (L6)  (L7)
---|---|---|---|---|---
MODE
| | | | | | | |

“TEST RUN” LED will light on.
If the compressor is operating at starting the test run, the compressor will stop and, after a while, the test run will start.
Either of the above “LOW NOISE” or “PEAK CUT” will light on during the test run if local setting function is selected.
(4) Confirm operating status.
(5) Press [ENTER] (TEST RUN) switch again.

POWER| ERROR| TEST RUN
(L1)| PUMP DOWN
(L2)| LOW NOISE
(L3)    (L4)| PEAK CUT
(L5)     (L6)  (L7)
---|---|---|---|---|---
MODE
| | | | | | | |

“TEST RUN” LED lights off, and TEST RUN stops.
Test run will finish after about 60 minutes automatically.
At the same time, “TEST RUN” LED will light off.
Test run may be stopped before operating for 60 minutes if an error occurs after a starting test run.

OUTDOOR UNIT ERROR CODE DISPLAY
Display when an error occurs

POWER| ERROR| TEST RUN
(L1)| PUMP DOWN
(L2)| LOW NOISE
(L3)      (L4)| PEAK CUT
(L5)     (L6)    (L7)
---|---|---|---|---|---
MODE
| Blinks (Hi-speed)| | | | | | |

Check that the ERROR LED blinks, and then short-press the [ENTER] switch once.
The number of blinks of the LED indicates the type of error.
Display mode
: ON
: OFF
: Blink (0.5s ON / 0.5s OFF)
( ) : Number of ßashing
Error code check table

POWER| ERROR| TEST RUN
(L1)| PUMP DOWN
(L2)| LOW NOISE
(L3)           (L4)| PEAK CUT
(L5)           (L6)           (L7)| Description
---|---|---|---|---|---|---
MODE
(2)| | (1)| (1)| | | | | | Serial forward transmission error immediately after operation
(2)| | (1)| (1)| | | | | | Serial forward transmission error during operation
(2)| | (2)| (2)| | | | | | Indoor unit capacity error
(2)| | (5)| (15)| | | | | | Indoor unit error
(2)| | (6)| (1)| | | | | | Over voltage
(2)| | (6)| (1)| | | | | | Power supply frequency error
(2)| | (6)| (2)| | | | | | Outdoor unit PCB model information error
(2)| | (6)| (2)| | | | |  | Inverter communication error
(2)| | (6)| (2)| | | | | | PFC communication error
(2)| | (6)| (3)| | | | | | Inverter error
(2)| | (6)| (4)| | | | | | PFC AD detection error
(2)| | (6)| (4)| | | | | | PFC hardware error
(2)| | (6)| (5)| | | | | | IPM error (Trip terminal L error)
(2)| | (6)| (8)| | | | | | Rush current limiting resister temp rise protection
(2)| | (7)| (1)| | | | | | Discharge temp. sensor error
(2)| | (7)| (2)| | | | | | Compressor temp. sensor error
(2)| | (7)| (3)| | | | | | Heat Ex. middle temp. sensor error
(2)| | (7)| (3)| | | | | | Outdoor unit Heat Ex. liquid temp. sensor error
(2)| | (7)| (4)| | | | | | Outdoor temp. sensor error
(2)| | (7)| (7)| | | | | | Heat sink temp. sensor error
(2)| | (7)| (7)| | | | | | PFC heat sink temp. sensor error
(2)| | (8)| (4)| | | | | | Current sensor 1 error (stoppage permanently)
(2)| | (8)| (6)| | | | | | High pressure switch 1 error
(2)| | (8)| (6)| | | | | | Pressure sensor error
(2)| | (9)| (4)| | | | | | Trip detection (stoppage permanently)
(2)| | (9)| (5)| | | | | | Compressor motor control error (stoppage permanently)
(2)| | (9)| (5)| | | | | | Compressor motor loss of synchronization (stoppage permanently)
(2)| | (9)| (7)| | | | | | Outdoor unit fan motor 1 error (Duty error)
(2)| | (9)| (8)| | | | | | Outdoor unit fan motor 2 error (Duty error)
(2)| | (9)| (9)| | | | | | 4-way valve error
(2)| | (10)| (1)| | | | | | Discharge temp. 1 error (stoppage permanently)
(2)| | (10)| (3)| | | | | | Compressor 1 temp. error (stoppage permanently)
(2)| | (10)| (5)| | | | | | Low pressure error

OUTDOOR UNIT
PUMP DOWN (Refrigerant collecting operation)
Perform the following procedures to collect the refrigerant when moving the indoor unit or outdoor unit
WARNING
Never touch electrical components such as the terminal blocks or reactor except the switch on the display board.
It may cause a serious accident such as electric shock.
CAUTION
Perform the pump down operation before disconnecting any refrigerant pipe or electric cable.
Collect refrigerant from the service port or the 3-way valve if pump down cannot be performed.
In case of a group control system installation, do not turn the power off pump down is completed in all outdoor units.
(Group control system installation described in “SPECIAL INSTALLATION METHODS” in the installation manual of the indoor unit.)
Operate [PUMP DOWN] switch on the display board in the manner described below.

1. Preparation for pump down
Confirm that the power is off, and then open the service panel.
2. Pump down procedure
(1) Check the 3-way valves (both at the liquid side and gas side) are opened.
(2) Turn the power on.

POWER| ERROR| TEST RUN
(L1)| PUMP DOWN
(L2)| LOW NOISE
(L3) (L4)| PEAK CUT
(L5)  (L6)   (L7)
---|---|---|---|---|---
MODE
| | | | | | | |

(3) Press [PUMP DOWN] switch for 3 seconds or more after 3 minutes after power on.

POWER|

ERROR

| TEST RUN (L1)| PUMP DOWN (L2)| LOW NOISE (L3) (L4)| PEAK CUT

(L5)  (L6)   (L7)

---|---|---|---|---|---
MODE
| | | | | | | |

LED display lights on as shown in the above figure, and the fans and the compressor start operating.
If the [PUMP DOWN] switch is pressed while the compressor is operating, the compressor will stop, then start again in about 3 minutes.
(4) LED display will change as shown below about 3 minutes after the compressor starts. Fully close the 3-way valve on the liquid pipe side at this stage.

POWER| ERROR| TEST RUN
(L1)| PUMP DOWN
(L2)| LOW NOISE
(L3) (L4)| PEAK CUT
(L5)  (L6)   (L7)
---|---|---|---|---|---
MODE
| | | | | | | |

If the valve on the liquid pipe side is not closed, the pump down cannot be performed.
(5) When LED display changes as shown in the below figure, close the 3-way valve on the gas pipe side tightly.

POWER| ERROR| TEST RUN
(L1)| PUMP DOWN
(L2)| LOW NOISE
(L3) (L4)| PEAK CUT
(L5)  (L6)   (L7)
---|---|---|---|---|---
MODE
| | | | | | | |

If the valve on the gas pipe side is not closed, refrigerant may flow into the piping after the compressor stops
(6) LED display changes after 1 minute as shown in the figure below

POWER| ERROR| TEST RUN
(L1)| PUMP DOWN
(L2)| LOW NOISE
(L3) (L4)| PEAK CUT
(L5)  (L6)   (L7)
---|---|---|---|---|---
MODE
| | | | | | | |

Fans and compressor stop automatically.
If the pump down is successfully completed (the above LED display is shown), the outdoor unit remains stopped  until the power is turned off.
(7) Turn the power off.

POWER| ERROR| TEST RUN
(L1)| PUMP DOWN
(L2)| LOW NOISE
(L3) (L4)| PEAK CUT
(L5)  (L6)   (L7)
---|---|---|---|---|---
MODE
| | | | | | | |

PUMP DOWN is completed.
(Note)
To stop pump down, press the [PUMP DOWN] switch again.
To start the pump down again after the compressor is automatically stopped due to an error, turn the power off and open the 3-way valves. Wait 3 minutes, turn the power on and start the pump down again.
When starting the operation after completion of the pump down, turn the power off, and then open the 3-way valves. Wait 3 minutes, turn the power on and perform a test run in the “COOL” operation mode.

PARTS

INDOOR UNIT

Ref.

| Description|

Parts number

---|---|---
1| Plate Top Sub Assy| 9372576014
2| Kit (Panel Front Sub Assy)| 9372637029
3| Panel Fan Assy| 9372035009
5| Motor, Induct| 9602802012
6| Casing A| 9372057018
7| Casing B| 9372058015
8| Sirocco Fan| 9372059029
9| Kit (Panel Rear Sub Assy)| 9372636022
10| Room Thermistor| 9703299216
11| Evaporator Sub Assy| 9372584057
12| Pipe Thermistor| 9703297113
13| Drain Pan Assy| 9372579015
14| Kit (Panel Right Sub Assy)| 9372916025
15| Kit (Panel Left Sub Assy)| 9372581018
16| Drain Pan S Sub Assy| 9372582015

INDOOR UNIT

Ref.

| Description|

Parts number

---|---|---
22| Power Supply PCB| 9705668119
23| Main PCB (45)| 9705246287
23| Main PCB (54)| 9705246294
24| Transformer (Power)| 9704129017
25| Terminal 3P| 9703345012
26| Terminal 3P| 9306489045
27| Relay| 9900294014
30| Capacitor, Plastic| 9900269111
?| Remote Control| 9318593013

PARTS
OUTDOOR UNIT

Ref.| Description|

Parts number

---|---|---
1| Top Panel Sub Assy| 9374417032
2| Front Panel Sub Assy| 9374414130
3| Sevice Panel Sub Assy| 9374415076
4| Emblem Rear| 9351355005
5| Pipe Cover Front| 9378861015
6| Right Panel| 9378863019
7| Pipe Cover Rear| 9378862012
8| Base Assy| 9374166220
9| Reactor Assy| 9900641016
---|---|---
10| Motor, DC Brushless| 9602843046
11| Propeller Fan Assy| 9366378020
12| Condenser A Sub Assy| 9374420261
13| Condenser B Sub Assy| 9374422081
14| Thermo Holder| 9375211011
15| Protective Net| 9375381042
16| Motor Bracket Sub Assy| 9374418145

OUTDOOR UNIT

Ref.

| Description|

Parts number

---|---|---
21| Expansion Valve Coil| 9900190057
22| Expansion Valve Assy| 9370947182
23| Strainer Assy| 9372524039
24| Solenoid| 9970113024
25| 4-way Valve Assy| 9374425273
26| 3-way Valve Assy| 9379079006
27| 3-way Valve Assy| 9379077002
28| Sensor| 9900505011
29| Accumulator Assy| 9375250096
30| Compressor Assy| 9383162008

OUTDOOR UNIT

Ref.

| Description|

Parts number

---|---|---
31| Main PCB (45)| 9707627077
31| Main PCB (54)| 9707627084
32| Filter PCB| 9707609011
33| Active Filter PCB with grease| 9709680438
34| Capacitor PCB| 9707608014
35| Transistor PCB with grease| 9709680445
36| Reactor Assy| 9900481018
37| Terminal| 9900428082
38| Compressor Thermistor| 9900516000
39| Discharge Thermistor| 9900515003
40| Thermistor (Heat Exchanger Mid)| 9900513009
41| Thermistor (Heat Exchanger Out)| 9900514006
42| Outdoor Thermistor| 9900517007
43| Heatsink Thermistor (Inverter)| 9900518011
44| Heatsink Thermistor (PFC)| 9900518028

ACCESSORIES

INDOOR UNIT

313005446653
Special nut B (small flange)| 4| 313005446759
Coupler heat insulation (large)| 1| For indoor side pipe joint (large pipe)| 9378173569
Coupler heat insulation (small)| 1| For indoor side pipe joint (small pipe)| 9378173521
Cable tie| 1| Fixing the remote cord| 313361275805
Remote control| 1| For air conditioner operation| 9318593013
Remote control cord| 1| For connecting the remote control| 9372714010
Tapping screw (ø4 × 16)| 2| For installing the remote control| 0700181108

OUTDOOR UNIT

Name and Shape

| Q’ty| Application|

Part number

---|---|---|---
Drain pipe| 1| For drain piping work| 9303029015
Drain cap| 2| 313166024302
One-touch bush| 2| For power supply cable and connection cable installation| 9378779013

OPTIONAL PARTS

Parts name

| Model No.|

Application

---|---|---
Simple remote control| UTY-RSNYM| For air conditioner operation
Wired remote control| UTY-RNNYM| For air conditioner operation
Remote sensor unit| UTY-XSZX| Room temperature sensor
External connect kit| UTD-ECS5A| For control input/output port
Long life filter| UTD-LF60KA|

1204G4043

Documents / Resources

| FUJITSU ARYG45LHTA Split Type Air Conditioner Duct Type [pdf] Owner's Manual
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---|---

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