Fujitsu AUXK018GLAH, AUXK024GLAH, AUXK030GLAH, AUXK034GLAH, AUXK036GLAH Service Manual

...

SERVICE MANUAL

CONTENTS

1. TEST RUN

1-3 TEST RUN CONTROL................................................................................................

1-2-1 Check Items Before Power ON............................................................................

1-2-2 Check Items After Power ON...............................................................................

1-2 TEST RUN METHOD...............

...................................................................................

1-1 EXECUTION PROCEDURE AND EXECUTION PRECAUTIONS.............................

1-2-4 Automatic address setting procedure for indoor units..........................................

01-01 01-03 01-03 01-04

01-07

1-2-3 Automatic address setting procedure for Signal amplifiers.................................. 01-06

-15

1-4 FIELD SETTING AND MONITOR MODE LIST FOR OUTDOOR UNIT..................... 01-16

2-1 INPUT / OUTPUT LIST..............................................................................................

2. OUTDOOR UNIT OPERATION CONTROL

2-2 COMPRESSOR OPERATION....................................................................................

02-01 02-02

02-02 02-03

2-2-3 Speed Range of Start,Stop,and Operation..........................................................

2-2-2 Capacity Control.................................................................................................

02-02

2-2-1 Operation / Stop Condition.................................................................................

2-5 SPECIAL OPERATION..............................................................................................

02-08 02-08 02-09

2-5-2 Pre-Heat Operation............................................................................................

2-5-1 Oil Recovery Operation......................................................................................

2-6 PROTECTIVE FUNCTION........................................................................................

02-10 02-10

2-6-1 Protective Function List......................................................................................

2-5-3 Defrost Operation Control..................................................................................

02-09

2-3 FAN CONTROL..........................................................................................................

02-04

2-4 EXPANSION VALVE CONTROL...............................................................................

02-07

02-04

2-06

2-3-3 Low noise mode..................................................................................................

02-07

2-3-4 Other Control.......................................................................................................

2-3-1 Cooling Operation...............................................................................................

02-05

2-3-2 Heating Operation...............................................................................................

1-2-5 Indoor unit connection check procedure ............................................................. 01-08

1-2-6 Test run from the outdoor Main PCB ........ ........................................................... 01-09

1-2-7 Test run from the Remote controller ..............................................................

...... 01-10

1-5 FIELD SETTING / FUNCTION SETTING FOR INDOOR UNIT.................................. 01-19

1-6 FIELD SETTING / FUNCTION SETTING FOR OUTDOOR AIR UNIT....................... 01-21

CONTENTS

3-2 MASTER CONTROL..................................................................................................

3-1-2 "AUTO" Position...................................................................................................

3-1-1 Fan Speed Setting...............................................................................................

3-1 FAN CONTROL...............

...........................................................................................

3. INDOOR UNIT OPERATION

3-2-1,2 Operation Mode Control.....................................................................................

3-2-3,4 Auto Changeover ..............................................................................................

03-01 03-01

03-01 03-02 03-02 03-05

3-3 LOUVER CONTROL..................................................................................................

3-2-5,6,7,8 "COOL"/"HEAT”Position .............................................................................

03-08 0

3-10

3-5 DRAIN PUMP OPERATION.......................................................................................

3-4 ELECTRONIC EXPANSION VALVE CONTROL......................................................

3-6 FUNCTION..................................................................................................................

03-14 03-14 03-15

3-6-1 Auto Restart.........................................................................................................

03-15

3-6-2 Icing Protection Control.......................................................................................

03-15

3-6-3 Oil Recovery Operation.......................................................................................

03-15

03-16

3-7 TIMER CONTROL......................................................................................................

03-17

3-7-1 Wireless Remote Controller................................................................................

03-17

3-7-2 Group Remote Controller..................................................................................... 03-19

3-7-3 Wired Remote Controller..................................................................................... 03-21

3-8 DX-KIT .............................................................................................

03-25

3-8-1 System configuration .......................................................................................

03-25

3-8-2,3 Fundamental functions .................................................................................... 03-26

3-8-4 Electrical expansion valve control for DX-KIT....................................................... 03-28

3-8-5 Drain pump operation for DX-KIT .................................................................... 03-28

3-8-6 Function .................................................................................. 03-29

....

................................

3-6-4 Outdoor temperature protected operation for outdoor..........................................

CONTENTS

5-2-1 Indoor Unit............................................................................................................

5-2 WIRING DIAGRAM....................................................................................................

5-1 REFRIGERANT CIRCUIT..........................................................................................

5. APPENDING DATA

5-3-1 Pressure sensor..................................................................................................

05-01

05-03

5-2-2 Outdoor Unit.........................................................................................................

05-18

5-3 CHARACTERISTICS OF SENSORS........................................................................

05-22

5-3-2 Thermistor resistance..........................................................................................

05-23

5-3-3 Saturation temperature and saturation pressure tables (R410A)........................

05-24

5-3-4 Temperature and pressure of refrigerant (Graph)...............................................

05-25

6. DISASSEMBLY PROCESS

4-1-2 Outdoor Unit Display...........................................................................................

4-1-1 Indoor Unit Display..............................................................................................

4-1 NORMAL OPERATION..............................................................................................

4. TROUBLE SHOOTING

4-2 ABNORMAL OPERATION.........................................................................................

4-2-1 Indoor Unit Display..............................................................................................

04-01 04-01

04-02

04-03 04-03

4-2-4 Remote Controller Display...................................................................................

4-2-3 Error Code List for Outdoor Unit..........................................................................

4-2-2 Outdoor Unit Display...........................................................................................

4-3 TROUBLE SHOOTING..............................................................................................

04-04 04-05

4-2-5 Error Code List for Simple and Wired Remote Controller...................................

04-07

4-2-6 Error Code List for Group Remote Controller......................................................

04-07

4-2-7 Troubleshooting - No Error code -

rror Code List for External Switch Controller...

..................................................

04-08

4-2-8

Error Code List for Signal Amplifier....................

.................................................

04-08

4-2-9

Error Code List for Network Convertor

......

.........

.................................................

04-08

4-2-10 .................................................

04-08

04-06

04-09

4-3-1 Trouble Shooting With Error Code (Indoor unit) ..........................................

04-09

4-4 SERVICE PARTS INFORMATION............................................................................ 04-106

5-2-3 DX-KIT .........................................................................................................

05-20

........

E .

..................

. ..

4-3-2 Trouble Shooting With Error Code (Outdoor unit) ..........................................

04-39

. ...

4-3-3 Trouble Shooting With No Error Code ..........................................

04-76

. .....................

4-3-4 Trouble Shooting for Option Parts ..........................................

04-82

...........................

....

1. TEST RUN

Before execution

Execution 1/2

Location decision

Execution procedure and precautions Reason

1-1 EXECUTION PROCEDURE AND EXECUTION PRECAUTIONS

1. TEST RUN

Sleeve and insert work

Indoor unit installation

Refrigerant piping work

Drain piping work

Duct work

Heat insulation work

Electrical work

Outdoor unit foundation work

Outdoor unit installation

Refrigerant piping connection work

Air tightness test

Vacuum drying

Use new refrigerant piping of the thickness specified by the D&T manual.

Since R410A dedicated tools are necessary, prepare them in advance.

Absolutely avoid use of existing piping. If use of existing piping is unavoidable, the piping must be cleaned.

Use pipe that is not dirty inside. Confirm the design for the piping ( Diameter, Thickness ) When the pipe is left standing, protect it. Confirm the angle of separation tube and header correctly. Finish flaring exactly. Confirm the width across flats dimension and shape of flare nuts. Always blow nitrogen while brazing. Perform flushing before connecting the equipment.

Always make the downward slope of the drain pipe 1/100 or greater and make the horizontal length within 20m.

Use hard polyvinyl chloride pipe as the drain pipe. Support the drain pipe between 1.5m to 2.0m. Use pipe of 1 rank up (VP30 or greater) as central piping.

Prevention of water leakage

Foreign matter, water, etc. in the piping will cause faulty cooling and compressor trouble.

Incorrect pipe diameter will cause faulty cooling

Incorrect angle of separation tube or header will be cause poor cooling or refrigerant noise problem

Refrigerant leakage will cause low performance and abnormal stopping

Prevention of water leakage

Refrigerant leakage will cause low performance and abnormal stopping.

Mixing in of vacuum pump oil by reverse flow will cause equipment trouble.

Always use a level and keep the indoor unit level. If the equipment is tilted toward the drain port, install it so that the tilt is within 13/32in.(10mm). Excessive tilt will cause water leakage.

Select the size of the heat insulating material according to the ambient temperature and relative humidity of the refrigerant. Use a heat insulating material having a heat conductivity of 0.043W/ (m.k) or less.

When making flare connections always use a torque wrench and tighten the flare nut positively to the specified torque.

Pressurize the product with nitrogen gas up to the design pressure and conduct a 24Hr air tightness test.

Install a vacuum pump with reverse flow check mechanism or a reverse flow check adapter to a conventional vacuum pump and use.

Pump down sufficiently. Approximately 1 hour or longer after -14.5psi (-0.10MPa) reached. Allow to stand for approximately 1 hour after stopping the vacuum pump and confirm that the needle does not return.

Air purging using refrigerant is strictly prohibited.

2 3 4 5 6

2 3 4

This function is used for vacuuming the indoor unit and the connection piping.

Note: For starting Vacuuming mode, the refrigerant address setting has to be finished.

When the [vacuuming mode] is set, <Push switch setting, F3:21> EEV of connected all indoor units opens. So, the vacuuming indoor unit and piping becomes easier.

When the vacuuming ends, please turn off the power supply for all of the indoor units and the outdoor unit, [vacuuming mode] is released.

Vaccuming mode

recommend the vacuuming mode

Do not install the units in the place not recommended in the installation manual.

The performance may drop significantly due to the protection controlling

Use of a refrigerant other than the specified refrigerant will invite equipment trouble

Confirmation of Refrigerant used

Preparation of execution drawings

Confirmation of installation site

Preparation before execution

Check the characteristics of the refrigerant used and grasp the special features of the refrigerant. If refrigerant must be charged, always charge the refrigerant specified for the product.

*Confirm the product design pressure. < R410A 4.2MPa >

Prepare the design for the system

Secure the necessary pressure resistance.

When performing piping work, observe the following items so that the inside of the piping is clean and air tight.

7 8

01-01

[Note] Perform in the power OFF state.

Execution 2/2

Set according to the length of the connection piping. Set to "Standard 40 to 65m" at the factory. Set using the push button SW on the outdoor unit main PCB. < Refer to the Page 01-17 Setting mode F2-00 > Set the pipe length to be the nearest indoor unit from the outdoor unit

Set the refrigerant circuit address and indoor unit address. Can be set by rotary SW on the indoor unit PCB ( Main PCB or Switch

PCB) or from a remote controller or from a push button SW on the outdoor unit Main PCB < Automatic address setting, Refer to the Page 01-07 Setting mode F3-11>

Initial setting

Gas leak test

Use an R410A dedicated leak tester to check for gas leaks.

Confirm the additional refrigerant amount with the installation manual, etc.

Always take the R410A refrigerant from the cylinder liquid phase and charge it using the gas phase. (Do not lay a cylinder with siphon pipe on its side.)

Use an R410A dedicated gauge manifold and charging hose. Charge refrigerant using the liquid pipe. When the defined amount of refrigerant cannot charge using the

liquid pipe, charge refrigerant using the gas pipe while opearting the cooling test run. Charge refrigerant bit by bit with cautious operation of valve for the liquid refrigerant back prevention.

If taken from the air phase, since the composition of the refrigerant which is charged will change, low performance and abnormal stop will occur easily.

Prevent erroneous sealing in of refrigerant.

A leak tester for other than R410A cannot detect leaks.

Set the refrigerant circuit address.

ROTARY SW: REF ADX10, X1

Turnover & explanation of operation

Address setting for Indoor unit

Test run & adjustment

Piping length setting

Addition refrigerant charging

Indoor unit connection check

[Note] Perform setting by push button SW on the outdoor unit Main PCB in the power ON state

after all indoor units have stopped operation.

When setting the address of Signal amplifier, please refer to the installation manual of the signal amplifier.

The address setting can be set by automatically from 1 outdoor unit on the network. < Refer to the Page 01-06 Setting mode F3-10 >

Address setting for Signal Amp

- When using signal Amps -

[Note] Manual setting: Set the rotary SW on the PCB in the power OFF state.

Automatic address setting: Perform setting by push button SW on the outdoor unit Main PCB in the

power ON state after all indoor units have stopped operation.

[Note] Perform in the power ON state after all indoor units have stopped operation

[Note] Manual setting: Set the rotary SW on the PCB in the power OFF state.

Automatic address setting: Perform setting by push button SW on the outdoor unit Main PCB in the

  power ON state after all indoor units have stopped operation.

Dual address setting No. is not allowed in one network.

When the setting is not same as the real piping length, the system may not work correctly.

Dual address setting No. is not allowed in one network.

Normal operation will not be possible without performing the indoor unit connection check.

Before starting the system, check on the number of indoor units and the total capacity. < Refer to the Page 01-08 Setting mode F3-12 >

Execution procedure and precautions Reason

Confirm the DIP SW setting SET 1: Factory setting, SET 2 : All OFF

If the DIP SW setting is wrong, the system may not work correctly

Confirm the Terminal resister setting SET 5-4 OFF: Disable, ON: Enable

If the Terminal resister setting is wrong, the system may detect transmission error

If the pipe length is set as the farthest indoor unit, the nearest operating indoor unit may be stopped the operation by the icing up protection as by over cooling.

01-02

Outdoor unit: AJ*072/090LELAH: 20A / AJ*108LELAH: 25A

Indoor unit:

20A

Leakage current: 100 mA 0.1sec or less

Install a breaker (Included with Earth Leakage Circuit Breaker) in accordance

with the related laws and regulations.

Outdoor unit:

2.5mm2 2 wires + Ground

Outdoor unit side: 400V 3 50Hz

Indoor unit side:

Use crimp-type terminals with insulating sleeves for stranded conductor cable

Power source

Shall be no scratches, deformation, etc. (Be careful of deformation of the front panel)

Shall be checked and entered in the check sheet.

Connection points check & loose terminal block screws check

0.33mm

, shielded wire used (22AWG)

Connection points check & loose terminal panel screws check

Check whether or not the heat insulation material is installed w

ithout a gap.

DIP SW : SET1 (1 ~4), Factory setting SET2, SET3,SET5-1,2,3: ALL OFF

T Refer to the Installation manual 7.2.2

erminal resistor setting SET5 - 4 OFF: Disable, ON: Enable

Refrigerant circuit address setting (SET : REF AD x10 and REF AD x1)

Comparison of calculated value and value written on electrics box. Entered in check sheet.

Refer to the installation manual 8.3.2

Gas pipe: fully open

Liquid pipe: fully open

There shall be no scratches, deformation, tilting, etc.

Shall be checked and entered in the check sheet.

Shall be installed positively.

Connection points check & loose terminal panel screws check

0.33mm

, shielded wire used (22AWG)

Connection points check & loose terminal panel screws check

Check whether or not the heat insulation material is installed without a gap.

Refrigerant circuit address (REF AD)

Indoor unit add

ress (IU AD)

At automatic address setting, IU AD/REF AD shall be [0].

Remote controller address (RC AD)

Function setting (Remote controller custom code/ external input switching/

auxiliary heater ON-OFF)

Indoor

unit

Outdoor

unit

Judgement standard

Check

Check contentsProcedure

1-2 TEST RUN METHOD

1-2-1 Check Items Before Power ON

01-03

[Note] If operated with the 3-way valve closed, the oil discharged from the compressor will not be returned and will lead to trouble.

Circuit breaker capacity

Type of power source wiring

Supply power source

Appearance

Serial No.

Drain cap installation

Power source wiring connection

Type of communication line

Communication line connection

Type of remote contr

oller wiring

Remote controller wiring connection

Connection piping

Rotary SW setting

DIP-SW setting

Appearance

Serial No.

Outside air temperature

Power source wiring connection

Type of communication line

Communication line connection

Connection piping

DIP-SW setting

Rotary SW setting

Additional refrigerant amount

3-way valve

Wiring on terminal blocks

Power cable: 6.0mm / Earth cable: 6.0mm Limited wiring length : 62 m

Indoor unit:

2 wire type : 16 to 22AWG (0.33 to 1.25mm ) 3 wire type : 22AWG (0.33mm )

2 2

230V 1 50Hz

Addresses shall be assigned to all indoor units / Signal amps. Check for unset or duplicated addresses. < For the setting, Refer to the page 01-06, 07 >

All the indoor units in the same refrigerant

circuit

shall enter the cooling test run

state.

The outdoor units corresponding to the operation capacity of the indoor

units shall operate. < Test operation procedure, Refer to the page 01-09,10 >

Cooling test run

All of the indoor units operation

(after 30 mins)

Automatic address setting

Address read

Outdoor unit circuit breaker ON

Indoor unit circuit breaker ON

Check lighting of Main PCB LED101 and 7-segment display.

Check whether or not indoor unit OPERATION and TIMER lamps flash alternately.

Address setting/ check

There shall be no Error information on the 7-segment display on the Main PCB.

3 Phase: 342 to 456V

These shall be no abnormal sound or abnormal vibration.

The outdoor fan shall not make a moaning sound. There shall be no discharge air leaking from the outdoor duct.

There shall be no pipe chattering sound or flute sound generated.

HPS: 2.7 ~ 3.0 MPa

LPS: 0.9 ~ 1.0 MPa

TH1: 81°C

TH4: 15°C

TH21: 27°C

TH22: 11°C

TH24: 13°C

Shall operate corresponding to the operation capacity of the indoor units.

Service tool used, output (CSV Excel)

Outdoor unit push button SW operation

High pressure

Low pressure

Discharge pipe temperature (outdoor unit)

Suction pipe temperature (outdoor unit)

Inlet air temperature (indoor unit)

Heat exchange inlet temperature (indoor unit)

Heat exchange outlet temperature (indoor unit)

Compressor operation

Data output

1-2-2 Check Items After Power ON

Function setting

Are the necessary functions set ? < For the setting, Refer to the page 01-16

〜19 >

Outdoor unit Main PCB push button SW setting/check

[Note]

Cooling test run for each refrigerant circuit. If multiple refrigerant circuits are test run at the same time, refrigerant circuit address setting errors cannot be detected.

Judgement standard

Check

Check contentsProcedure

Power ON

Inlet air temperature and outlet air temperature difference shall be 10°C or greater.

There shall be no abnormal sound or abnormal vibration.

There shall be no water leakage. There shall be no condensation on the drain, cabinet, piping, and discharge port.

Shall operate according to the settings. (ON-OFF, set temperature change)

Outlet air temperature

Abnormal sound/abnormal vibration

Water leakage check

Remote controller operation

Outdoor Main PCB 7-seg. display

Operation voltage

Abnormal sound/ abnormal vibration

[Note] Turn on all indoor units power in the same refrigerant circuit address.

Indoor unit connection check

Are the number of connecting indoor units correct ? Is the total capacity of indoor units correct ? < For the checking, Refer to the page 01-08 >

Indoor unit

connection check

Address record

Address hold check

All the indoor units and outdoor units of the same refrigerant circuit can be checked on the service tool.

Enter the set addresses in the check sheet.

Check whether or not the address setting is held by the service tool after indoor/outdoor circuit breakers were turned OFF to ON.

[Note] Before connecting service tool, the address setting has to be completed.

01-04

When the system operates with the indoor units remaining no power, it is cause of malfunction.

Fan operation

Louver operation (except duct)

Outlet air temperature

Abnormal sound/abnormal vibration

Water leakage check

Remote controller operation

Indoor unit individual operation

Shall be switched to all fan speeds in the cooling mode.

Louver shall be switched to all positions. Shall also swing.

Inlet air temperature and outlet air temperature difference shall be 10°C or greater.

There shall be no abnormal sound or abnormal vibration.

There shall be no water leakage. There shall be no condensation on the drain, cabinet, piping, and discharge port.

Shall operate according to the settings. (ON-OFF, set temperature change)

Judgement standard

Check

Check contentsProcedure

These are representative figures of AJ*108LELAH at the standard condition. ( Indoor : 27

°C,

Outdoor : 35°C ) If conditions are different from those above mentioned, the figures will be changed slightly. It depends on following conditions.

Outdoor unit capacity Indoor and outdoor temperature Indoor unit capacity Pipe length etc

1. Error occured

- Check on the Error code on the Remote controller or Indoor unit or Outdoor unit or Service tool and check the description of the Error code.

< Refer to the Trouble shooting in the Service manual.> < Refer to the Execution of precautions 1-1 and Check item Before power ON 1-2-1>

2. No good performance without error code

- Check if the protection controlling is operating or not Evaporator Icing up protection, High discharge temperature protection,etc.

< Refer to the part of protection controlling in the Service manual >

- Check on the refrigerant circuit Refrigerant amount, Pipe blockage, Wrong position of separation pipes etc.

< Refer to the Execution of precautions 1-1 and Check item Before power ON 1-2-1> < Refer to the regulation of installation in the Installation manual>

Trouble shooting on Test run operation

01-05

1-2-3 Automatic address setting for signal amplifiers

When using signal amplifiers

When setting the address of the signal amplifier, please use the factory setting.

(See the installation manual of the signal amplifier)

When the system is normal, nothing will be displayed on the 7 segment display.

When ERROR is displayed, inspect the units.

Use the “MODE/EXIT”, “SELECT”, and “ENTER” buttons on the outdoor unit Main PCB to configure settings according to the procedures below.

1: FUNCTION Setting

First 2 digits Last 2 digits

(the display when the main power is turned on)

(When [F4] to [F9] are displayed, continue to press the "SELECT" button until [ F3 ] is displayed)

MODE/EXIT

SELECT

ENTER

SELECT

ENTER

Automatic address setting for signal amplifiers

Press the “SELECT” button until "10" is displayed

Press the “ENTER” button for more than 3 seconds

* Setting is complete when the number of unit is displayed

End

ENTER

MODE/EXIT

SWITCH POSITION

SW107 SW108 SW109

MODE

/EXIT

SELECT ENTER

LED101

(GREEN)

POWER

MODE

LED105 LED104

LED102

(RED)

ERROR

Push button switch

7 Segment LED Lamp

Outdoor unit printed circuit board

01-06

SWITCH POSITION

SW107 SW108 SW109

MODE

/EXIT

SELECT ENTER

LED101

(GREEN)

POWER

MODE

LED105 LED104

LED102

(RED)

ERROR

Push button switch

7 Segment LED Lamp

Outdoor unit printed circuit board

Check that the rotary switch IU AD on the indoor unit Main PCB is set to “00”. If it is not set to “00”, it means the address of that device is not set.

(Factory default is “00”).

Turn on the power of the indoor and outdoor units.

When the system is normal, nothing will be displayed on the 7 segment display.

When ERROR is displayed, inspect the units.

Use the “MODE/EXIT”, “SELECT”, and “ENTER” buttons on the outdoor unit Main PCB to configure settings according to the procedures below.

1: FUNCTION Setting

First 2 digits Last 2 digits

(the display when the main power is turned on)

(When [F4] to [F9] are displayed, continue to press the “SELECT” button until [F3] is displayed.)

SELECT

ENTER

1-2-4 Automatic address setting for Indoor units

It may take about 10 minutes for completing the processing.

End

First 2 digits Last 2 digits

Press the “SELECT” button until “11” is displayed.

Press the “ENTER” button for more than 3 seconds.

Automatic address setting for indoor units

The number of indoor units with normal settings will be displayed at the first 2 digits of the 7 segment display. The number of indoor units with error will be displayed at the last 2 digits.

NOTE) After the “ENTER” button is pressed, the end processing will occur for about 30 seconds.

During this period, the 7 segment will blink.

ENTER

SELECT

ENTER

Error

Found

01-07

SWITCH POSITION

SW107 SW108 SW109

MODE

/EXIT

SELECT ENTER

LED101

(GREEN)

POWER

MODE

LED105 LED104

LED102

(RED)

ERROR

Push button switch

7 Segment LED Lamp

Outdoor unit printed circuit board

1-2-5 Indoor unit connection check

Please perform the indoor unit connection check according to following procedures.

MODE/EXIT

SELECT

ENTER

LED105

LED104

ENTER

Set to Function mode [F3].

(When [F4] to [F9] are displayed, continue to press the “SELECT” button until [F3] is displayed.)

Press the “SELECT” button until “12” is displayed.

When indoor unit connection check can not be performed

Turn on the powerof indoor unit and outdoor unit.

•

Press the

“ENTER” button for

more than 3 seconds.

•

This will be displayed when the Indoor unit connection check starts.

•

MODE/EXIT

SELECT

ENTER

(*1)

(*2)

(*1) The number of connected indoor units

(*2) Volume ratio of the indoor units connection

Ex.) When 8 units are connected

Ex.) When the ratio is 120%

Please refer to the following “Error code” for details

[ Note ] Error code

22.1: Connecting Indoor units capacity error

24.2: Connecting number of indoor unit error

26.1: Dual address number is existing

Other Error code: Refer to the Trouble shooting

When it finishes normally, nothing will be displayed on 7 segment display.

When error occurs

Confirm the number of connected indoor units and the volume ratio of the indoor units connection.

•

Exit indoor unit connection check mode.

•

01-08

1-2-6 Test Run From Outdoor Main PCB

All the indoor units connected to the outdoor unit can be test-operated by push button setting.

LED105 LED104LED105 LED104 LED105 LED104LED105 LED104

LED105 LED104

[ Cooling test run ]

[ Heating test run ]

[ Test run stop ]

LED105 LED104

Press the ENTER button for at least 3 seconds.

Press the "ENTER" button or Time out ( 5 seconds)

TIXE / EDOM

< Pursuance completion >

< Monitoring condition >

< Mode select condition >

< Return to mode select condition >

< Function select condition >

[ Function mode ]

SWITCH POSITION

SW107 SW108 SW109

MODE

/EXIT

SELECT ENTER

LED101

(GREEN)

POWER

MODE

LED105 LED104

LED102

(RED)

ERROR

Push button switch

7 Segment LED Lamp

Outdoor unit printed circuit board

TEST RUN SETTING

[ Monitoring mode ] [ Setting mode ]

[ Error history mode ]

For a detailed description of push button operation, refer to the [D&T manual Chapter 6. SYSTEM DESIGN]

LED105 LED104

< Return to monitoring condition >

example, Normal indicate : [ Cooling mode ]

[ Central control setting

Forced reset ]

There are the following 2 methods of resetting test operation.

(1) Automatic reset when 60 minutes has elapsed.

(2) Reset when operation stop was performed.

Note

SELECT

ENTER

TIXE / EDOM

01-09

1-2-7 Test Run From Remote Controller

Press the TEST RUN button on the remote controller, while the air conditioner is running.

To end test run operation, press the remote controller START / STOP button.

When the air conditioner is being test run, the OPERATION and TIMER lamps of indoor unit flash slowly at the same time.

START / STOP button

TEST RUN button

2. Standard wireless remote controller

Stop the indoor unit. Push the button and button simultaneously for more than two seconds. The air conditioner will start to conduct a test run and " " will display on the remote controller display. However, the , setting button does not have function, but all other buttons, displays, and protection functions will operate.

To stop test run, push the START / STOP button of the standard wired remote controller. For the operation method, refer to the operating manual and perform operation check. Check that there are no abnormal sounds or vibration sounds during test run operation.

Perform the test operation for 60 minutes.

1. Standard wired remote controller

UTY - LNH

UTY - RNK

Stop the indoor and outdoor units. Push the remote controller button and button simultaneously for more than three seconds. The air conditioner will start to conduct a test run and " " will display on the temperature display.

SET

However the setting button does not have function but all other buttons, displays and protection functions will operate.

To stop test running press the button of the simple remote controller. For the operation method refer to the operating manual and perform operation check. Check that there are no abnormal sounds or vibration sounds during test run operation.

3. Simple remote controller

UTY - RSK

TIMER MODE

CLOCK ADJUST

TEST RUN

RESET

TIMER

SLEEP

FILTER RESET

SWING

SET

ECONOMY

FANMODE

START

STOP

SET

TEMP.

TIMER MODE DAY

SET BACK

CLOCK ADJUST

DAY OFF

TIMER DELETE TIMER SET

FAN MODE

SET TEMP.

START / STOP

01-10

[ Select All (F2) ]: All of R.C.Group (Indoor units) [ Identify Unit (F3) ] : Specific R.C.Group (Indoor unit)

Setup Menu

Indoor unit Special Setting

Test Operation

Central Controller Setting

Indoor unit Special setting

Indoor Unit Set Temp. Range

Filter Sign

R.C. Prohibition

Group

Select All

Identify Unit

Clear Unit

Select All

Details

Off

Operation

Help

Setup Menu

Monitor Group

Monitor - All

UTY-DCG

Coll

25.0

℃

05/31 03:59

Test Operation

05/31 03:59

RCG_05

Test run operating procedure

4. Central remote controller

LED lamp

[ Arrow ] [ MENU ]

[ OK ]

[ CANCEL ]

Function buttons( F1-5 )

< Monitor screen : 9 units display >

< Password verification >

1) Press Button

2) Press the [ Setup Menu (F2) ] button

5) Press the [ Select All (F2) ] button or [ Identify Unit (F3) ] button

6) Press the [ Start (F5) ] button

3) Shift Indoor unit special setting by pressing the [ ] button and [ ] button

4) Shift the Test Operation by pressing the [ ] button and [ ] button

01-11

Test run operating procedure

(1)

(2)

( * )

(1)

(2)

( * )

5. Touch panel controller

UTY - DTG

(1) Select the objective you want to test run. Select the objective icon or list at the monitor screen. (Multiple selections is possible) Select all the devices registered as objectives by pressing "Select All" on the monitor screen.

(2) After objective selection at (1), switch to the <Setting screen> by pressing "Operation".

Office B

Conference

Conference B

Meeting 1

Meeting

Parking lot

Meeting

EntranceRestrantRoom

101

Office A

PC Room

Top Up

Down

List

Heat

Auto

Cool

26.0 C

24.0

Auto

22.0

Auto

24.0 C

21.5 C

Heat

21.5 C

Cool

Off

All

21.0

Heat

All

Lange Group

Top Up

Down

List

Office A

PC Room

Room 101

Restrant

Entrance

Meeting 1

Off

Mixed

Heat

Auto

Cool

24.0 C

26.0 C

Low

Auto

21.5 C

High

Office B

Mixed Mixed Mixed

Mixed

Name

Expand

Status Mode

Set Temp

Fan

R/C Prohibit

Status: On

10/11.2008.Mar. 02:20 PM

Monitor Mode

Heat

21.0

Off

Operation

Clear All

Select All

Schedule

Setting

Off

Operation

Clear All

Select All

Setting

Schedule

Group Error

Schedule Filter Sign Op. Controlled Op. Restricted

RC Prohibition All On/Off On

Mode Temp. Timer

Filter

Mode Set Temp.

Group Error

Schedule Filter Sign

Op.Controlled Op.Restricted

01-12

(3) Switch to the <Details setting screen> by pressing "Optional Setting" on the setting screen.

(4) Send (start) test run by pressing "Start" and then pressing "OK" on the details setting screen.

During sending, the slave screen shown below is displayed. When sending is completed, the sending slave screen and details settingscreen are closed.

To interrupt test run, select the device being test run and execute an operation stop command.

(*) At the monitor screen, test run is reset by stopping operation of the objective devices by pressing "OFF".

(*) Or test operation is reset by stopping operation of the objective

devices by pressing "Off" of Operation and then pressing "OK" on the setting screen.

(3)

(4)

(5)

( * )

Cancel

Off

Transferring data. Please wait.

Reset

Cancel

Stand by (Defrost) Stand by (Oil Recovery) Test Operation

Start

Air Flow Direction

Economy

Anti Freeze

Filter Sign

Operation

Test

Down

Swing

Left Right

Off

Special State

Status: On

SettingOptional

Cancel

Off

Auto

Cool

Dry

Fan

Heat

Operation Controlled

High

Med

Low

Quiet

Meeting Room

24.0 C

operation

R/C Prohibition

Mode Set Temp. Fan

Optional

Setting

All

On/Off

Filter

Timer

Temp.

Mode

10/11.2008.Mar. 02:20 PM

Air Flow Direction Economy Anti Freeze Filter Sign Test Operation

Control Unit :

Operation Setting

Status: On

01-13

Test run continues for 60 minutes.

(1) Press "Menu" on the monitor screen. the < Main Menu screen > is displayed. (2) Press "Next Page" and press "Maintenance" (3) Press "Next Page" and press "Test Run". the <Test run screen > is displayed. (4) Press "OK"

The test run continues for 60 minutes.

To interrupt test run before it is complet, return to the "Monitor Mode Screen",

and press ON/ OFF.

< Monitor Mode Screen >

< Main Menu Screen >

< Maintenance Screen >

UTY - RNR

< Test Run Screen >

01-14

6. 2-Wire type wired remote controller

1-3 TEST RUN CONTROL

01-15

1. When the test run signal is transmitted from standard wired, wireless remote controller, simple remote controller, transmitted network, and outdoor unit.

(1) The test run operation starts and the electric expansion valve is controlled to a maximum flow, regardless of the temperature condition. (2) Frost prevention operation has priority over item(1). (3) Whether state of the indoor unit operates or stops, All units in the same refrigerant circuit will start to conduct a test run in accordance with the operation mode set by push switch of outdoor unit ( see 1 - 2 - 3 ). (4) After 60 minutes passes, the test run stops. (5) Test running initialization is shown below.

Fan speed Hi Hi

Room Temperature Indication 18 30

Hi Hi

18 30

Vertical Air Direction Panel

Swing

Operating Mode

Cooling Heating Cooling Heating

OFF OFF

Position

EXCEPT FOR THE DUCT MODEL DUCT TYPE

CEILING TYPE

COMPACT FLOOR

COMPACT CASSETTE TYPE

COMPACT WALL MOUNTED TYPE

*Example

Set the air outlet selection switch to

1-4 FIELD SETTING AND MONITOR MODE LIST FOR OUTDOOR UNIT

Push switch on outdoor unit PCB

[ F1 ]

Monitor mode

Setting Mode

ITEM CODE No.

Information contents

Classification

Connected number of indoor unit

The number of the communicating unit is displayed

Device and system

Software version :

Software version of outdoor unit

[ ] [ ] [ ] [ ] [ ] displays by five items

02 Software version of INV PCB

It skips when there is no suffix

Software version of communication PCB

Operation of each part

10 Rotational speed of outdoor unit fan motor

11 Rotational speed of INV compressor

12 Current value of INV compressor

The rotational speed of the outdoor unit fan motor is displayed

[ rpm ]

The rotational speed of the compressor is displayed [ rps ]

Current value of INV compressor is displayed [ A ]

14 Pulse of EEV1

Pulse of EEV1 is displayed [ pls ]

15 Pulse of EEV2

Pulse of EEV2 is displayed [ pls ]

Time guard 20 Accumulated current time

21 INV compressor accumulated time

[ Cooling ]

22 INV compressor accumulated time

[ Heating ]

Accumulated current time is displayed

[ 10 hour ]

Accumulated time is displayed in the cooling operation of the

INV compressor

[ 10 hour ]

Accumulated time is displayed in the heating operation of the

INV compressor

[ 10 hour ]

Refrigerant cycle data 1

Refrigerant cycle data 2

Information on Thermistor 1

(

INV compressor discharge temperature sensor

)

The value of the Thermistor 1 is displayed

The value of the Thermistor 3 is displayed

The value of the Thermistor 4 is displayed

[°C ] or [°F ]

The value of the Thermistor 7 is displayed

The value of the Thermistor 9 is displayed

[°C ] or [°F ]

The value of the pressure sensor 1 is displayed [ MPa ] or [ psi ]

The value of the pressure sensor 2 is displayed [ MPa ] or [ psi ]

Forbidden

50 Information on pressure sensor 1

( High pressure sensor )

51 Information on pressure sensor 2

( Low pressure sensor )

Refrigerant

cycle data 4

Refrigerant cycle data 3

01-16

Information on Thermistor 5

(

Heat-exchanger (outlet) temperature sensor )

Information on Thermistor 7

(

Liquid temperature sensor 2 )

Forbidden

Information on Thermistor 9

( Sub-cool heat-exchanger (outlet) temperature sensor )

Information on Thermistor 10

( INV compressor temperature sensor )

Information on Thermistor 4

( Outdoor temperature sensor )

( Suction temperature sensor )

Information on Thermistor 3

Forbidden

The value of the Thermistor 10 is displayed

[°C ] or [°F ]

The value of the Thermistor 5 is displayed

[°C ] or [°F ]

Push switch on outdoor unit PCB

[ F2 ]

Monitor mode

Setting Mode

ITEM CODE No.

Information contents DefaultClassification

10 11

13,14

25,26,27

35,36,37 38,39

00 01 02

00 01

04 00 01 02 03

1010

00 00

02 03

Pipe length setting

Cooling capacity shift

Heating capacity shift

16,17

Forbidden Switching between forced stop or

Operation mode selecting method

22,23,24 Forbidden

Change of unit (Temperature)

Change of unit (Pressure)

Energy saving level setting

40-65m 0-40m 65-90m 90-120m

10 Forbidden

Forbidden Factory default

Factory default

Factory default Factory defaultForbidden

Normal mode

Factory defalt

Save energy mode +2

°C

High power mode 1 -2 °C High power mode 2 -4

°C

Normal mode Save energy mode -2

°C

High power mode 1 +2°C High power mode 2 +4°C

Forced stop

Factory default

Celsius (

°C)

Disable (°F) MPa

psi Level 1 (stop) Level 2 (operated at 40% capacity) Level 3 (operated at 60% capacity) Level 4 (operated at 80% capacity) Level 5 (operated at 100% capacity)

Emergency stop Priority given to the first command Priority given to the external input of outdoor unit Priority given to the master indoor unit

Forbidden

Install

Correction

Change of

emergency stop

00 01 00 01 00

31,34,35

Forbidden

01 02 03 04

function 1

Change of

function 2

01-17

50,51,60, 61,64

Capacity priority setting

Low noise mode setting

Low noise level setting

Forbidden

Factory defalut

Level 1

Off (quiet priority) On (capacity priority) Off (Normal) On (Low noise mode operation is always done)

00 01 00

Low noise

setting 1

3737

Electricity meter No. setting 1

( Set the ones digit and tens digit of the No. of the electricity meter connected to CN135 )*1

Electricity meter No. setting 2

( Set the ones digit and tens digit of the No. of the electricity meter connected to CN135 )*1

Electricity meter pulse setting 1

( Set the ones digit and tens digit of the No. of

Electricity meter pulse setting 2

Setting number x00~x99 ( Refer to Design & Technical Manual for details.)

Setting number 0xx~2xx ( Refer to Design & Technical Manual for details.)

Setting number xx00~xx99 ( Refer to Design & Technical Manual for details.)

Setting number 00xx~99xx ( Refer to Design & Technical Manual for details.)

00~99

00~02

00~99

the electricity meter pulse setting connected

to CN135 )*2

( Set the ones digit and tens digit of the No. of

the electricity meter pulse setting connected

to CN135 )*2

Change of

function 4

Change of

function 3

*1 : When electricity meter No. is set to "000" and "201 to 299", the pulses input to CN135 become ineffective.

Available setting number is "001" to "200"

*2 : When the electricity meter pulse setting is set to "0000", the pulses input to CN135 become ineffective.

Available setting number is "0001" to "9999"

Level 2

Push switch on outdoor unit PCB

[ F3 ]

Monitor mode

Setting Mode

ITEM CODE No.

Setting Function

Classification

Meaning of Error History Number

ITEM CODE No.

Information contents

Classification

Cooling test run

Forced thermostat-ON in Cooling.

Heating test run

Forced thermostat-ON in Heating.

03,04

Test run stop

Forbidden

Test run is stopped.

Signal amplifier automatic address

Indoor unit automatic address

Indoor unit connection check

Automatic address setting operates for indoor unit of same

The number of indoor units and the total capacity of indoor units

Automatic address setting operates for signal amplifier.

refrigerant circuit.

of same refrigerant circuit.

Vacuuming mode

Vacuuming mode operates Refer to page 01-01 for the function.

Error history clear

Forbidden

All the abnormal code histories are cleared.

Current time clear

Accumulated current time becomes [ 0 ]

INV compressor accumulated time clear

Accumulated time of the INV compressor becomes [ 0 ]

Field setting all clear

Return to default the all set items.

Clear memorized information of “F3 - 12” ( Indoor unit connection check )

The information of the number of indoor units and the total

Abnormal reset

It was displayed when abnormality occurs, and the total

Maximum memorized indoor unit number reset

Maximum memorized indoor unit number is reset

Forced Central control function release

When the centralized control device failure, and the centralized control setting cannot be released, this function is used.

All the limitations set with the centralized control device are released.

“E14.5 : Indoor unit number shortage ” error is cleared.

code is reset.

This is a function that uses to clear abnormal display after the repair is completed.

Please operate the switch after power off or power on the outdoor unit.

capacity of indoor units are cleared.

Forced

Push switch on outdoor unit PCB

[ F9 ]

Monitor mode

1 time ago (Newest)

2 time ago

3 time ago

4 time ago

5 time ago

6 time ago

7 time ago

8 time ago

9 time ago

10 time ago

When the error occurred, the error code is memorized up to 10 on Main PCB.

If the memorized error code becomes over 10, the oldest one will be erased.

Error history

operation

Install and maintenance 1

Install and maintenance 2

Refer to Chapter 4.TROUBLE SHOOTING

4-3-2 Error Code List for Outdoor unit

Compressor Motor Loss of Synchronization Compressor 1 Temperature Abnormal Inverter Compressor Start Up Error Discharge Temperature 1 Abnormal Low Pressure Abnormal Current Sensor 1 Error Trip Detection Rush Current Limiting Resistor Temp Rise Protection Outdoor Unit FAN motor 1 Lock Error Outdoor Unit FAN motor 2 Lock Error

< Reset Error Item List By Abnormal Reset Setting >

Reset

Specialty function

Clear

01-18

Forbidden

Function

number

Setting number Default Details

Filter

indicator

interval

00 Standard

Adjust the ﬁlter cleaning interval notiﬁcation. If the notiﬁcation is too early, change to setting 01. If the notiﬁcation is too late, change to setting 02.

01 Longer 02 Shorter

Filter

indicator

action

00 Enable

Enable or disable the ﬁlter indicator. Setting 02 is for use with a central remote control.

01 Disable

Display only on

central remote

control

Ceiling

airﬂ ow

00 Standard

Regulate the airﬂ ow according to the needs of the installation location. When set to 01, the air ﬂow will be stronger. (Cassette type only)

01 High Ceiling

Vertical

airﬂ ow

direction

00 Standard

Adjust the ver tical air ﬂow direction. All air ﬂow direction louvers are adjusted together.

(Cassette type only)

01 Raise

Horizontal

swing

airﬂ ow

direction

00 Standard

Adjust the horizontal swing airﬂow direction.

(For horizontal swing equipped models)

01 Left half

02 Right half

Static pressure 26

00 SP mode 00

Indoor unit address 00

Ref. circuit address 00

00~63

00~99

Model name

Range of static

pressure

Normal static

pressure

ARXK07GCLH

SP mode 00 to 03 10 PaARXK09GCLH ARXK12GCLH ARXK14GCLH

SP mode 00 to 05 15 PaARXK18GCLH ARXK24GCLH ARXD04GALH

SP mode 00 to 09

(0 to 90 Pa)

25Pa

ARXD07GALH ARXD09GALH ARXD12GALH ARXD14GALH ARXD18GALH

ARXD24GALH

SP mode 00 to 05

(0 to 50 Pa)

ARX A24GBLH

SP mode 00 to 14

40Pa

ARX A30GBLH

50Pa

ARX A36GBLH SP mode 00 to 12 ARX A45GBLH SP mode 00 to 11 60Pa ARXC36GBTH SP mode 02 to 16 100Pa ARXC72GBTH SP mode 04 to 27

150PaARXC90GBTH SP mode 05 to 24 ARXC96GATH SP mode 05 to 29 ARXN18GATH SP mode 05 to 10

50Pa

ARXN24GATH SP mode 05 to 15 ARXN30GATH

SP mode 05 to 25

ARXN34GATH ARXN36GATH

60Pa

ARXN45GATH

Please refer to "Chapter04 7.FAN PERFORMANCE CURVE" for the characteristics of each indoor unit.

01 SP mode 01

02 SP mode 02

03 SP mode 03

04 SP mode 04

05 SP mode 05

06 SP mode 06

07 SP mode 07

08 SP mode 08

09 SP mode 09

10 SP mode 10

11 SP mode 11

12 SP mode 12

13 SP mode 13

14 SP mode 14

15 SP mode 15

16 SP mode 16

17 SP mode 17

18 SP mode 18

19 S

P mode 19

20 SP mode 20

21 SP mode 21

22 SP mode 22

23 SP mode 23

24 SP mode 24

25 SP mode 25

26 SP mode 26

27 SP mode 27

28 SP mode 28

29 SP mode 29

31 Normal SP

Cool air tem-

perature trigger

00 Standard

Adjust the cool air trigger temperature. To lower the trigger

temperature, use setting 01. To raise the trigger temperature,

use setting 02.

01 Adjust (1)

02 Adjust (2)

Heat air tem-

perature trigger

00 Standard

Adjust the heat air trigger temperature. To lower the trigger

temperature by 6 degrees C, use setting 01. To lower the trigger temperature by 4 degrees C, use setting 02. To raise the trigger temperature, use setting 03.

01 Adjust (1) 02 Adjust (2) 03 Adjust (3)

FUNCTION

SETTING

1-5 FIELD SETTING / FUNCTION SETTING FOR INDOOR UNIT

Address

01-19

Function

number

Setting number Default Details

*1 Auto

restart

00 Enable

Enable or disable automatic system restart after a power outage.

01 Disable

Cool Air

Prevention

00 Super low

Restrain the cold airﬂow with making the airﬂ ow lower when star ting heating operation. To correspond to the ventilation, set to 01.

Follow the setting

on the remote

controller

External

control

00 Start /Stop

Allow an external controller to start or stop the system, or to perform an emergency stop, or to perform a forced stop.

* If an emergency stop is performed from an external controller, same

refrigerant system will be disabled.

* If forced stop is set,indoor unit stops by the input to the external input

terminals,and Start /Stop by a remote controller is restricted.

01 Emergency stop

02 Forced stop

Error report target

00 All

Change the target for reporting errors. Errors can either be reported in all locations, or only on the wired remote.

Display only on

central remote

control

Fan setting

when cooling

thermostat OFF

Follow the setting

on the remote

controller

When set 00, Indoor unit is continued operation based upon Central remote controller or individual controller set. Once indoor unit received signal from External controller, Indoor unit changed Fan mode forcibly.

When set 01, Indoor unit is continued operation based upon Central remote controller or individual controller set. Once indoor unit received signal from External controller, Indoor unit stop forcibly.

Connection of the wired remote controller (2-wire type or 3-wire type) and switching its

thermistor are necessary.

01 Stop

*1 : Auto restart is an emergency function such as for power failure etc.

Do not start and stop the indoor unit by this function in normal operation. Be sure to operate by the control unit, converter or external input device.

FUNCTION

SETTING

FUNCTION

SETTING

01-20

Function

number

Setting number Default Details

Filter

indicator

interval

00 Standard

Adjust the ﬁlter cleaning interval notiﬁ cation. If the notiﬁcation is too early, change to setting 01. If the notiﬁcation is too late, change to setting 02.

01 Longer 02 Shorter

Filter

indicator

action

00 Enable

Enable or disable the ﬁlter indicator. Setting 02 is for use with a central remote control.

01 Disable

Display only on

central remote

control

Static pressure 26

05 SP mode 05

Model name

Range of static

pressure

Normal static

pressure

ARXH054GTAH

SP mode 05 to 19

(50 to 185 Pa)

185Pa

ARXH072GTAH

SP mode 05 to 20

(50 to 200 Pa)

200Pa

ARXH096GTAH

SP mode 05 to 22

(50 to 220 Pa)

200Pa

06 SP mode 06

07 SP mode 07

08 SP mode 08

09 SP mode 09

10 SP mode 10

11 SP mode 11

12 SP mode 12

13 SP mode 13

14 SP mode 14

15 SP mode 15

16 SP mode 16

17 SP mode 17

18 SP mode 18

19 SP mode 19

20 SP mode 20

21 SP mode 21

22 SP mode 22

31 Normal SP

*1 Auto

restart

00 Enable

Enable or disable automatic system restart after a power outage.

01 Disable

Cool Air

Prevention

00 Prohibited

Setting change prohibited.

Follow the setting

on the remote

controller

External

control

00 Start /Stop

Allow an external controller to start or stop the system, or to perform an emergency stop, or to perform a forced stop.

* If an emergency stop is performed from an external controller, same

refrigerant system will be disabled.

* If forced stop is set,indoor unit stops by the input to the external input

terminals,and Start/Stop by a remote controller is restricted.

01 Emergency stop

02 Forced stop

Error report target

00 All

Change the target for reporting errors. Errors can either be reported in all locations, or only on the wired remote.

Display only on

central remote

control

Humidiﬁer

contro

00 mode 00

Select control conditions of external output. "Mode 0 0" is output when heating thermostat is ON, "Mode 01" is output in heating operation, "Mode 02" is output in heating operation and in fan operation.

01 mode 01

02 mode 02

1-6 FIELD SETTING / FUNCTION SETTING FOR OUTDOOR AIR UNIT

01-21

2. OUTDOOR UNIT OPERATION CONTROL

2-1 INPUT / OUTPUT LIST

2. OUTDOOR UNIT

02-01

Input / output or kind of detail Control range

Discharge pressure sensor <HIGH> Pressure sensor Measure range 0.0 to 5.0MPa Suction pressure sensor <LOW> Pressure sensor Measure range 0.0 to 1.7MPa Discharge temperature sensor <TH1> Themistor <Blue>

Measure range 10 to 130

Heat exchanger temperature sensor <TH5> Themistor < >

Measure range -35 to 70

Sub-cool heat exchanger (outlet) sensor<TH9> Themistor < White>

Measure range -35 to 70

Liquid temperature sensor <TH7> Themistor <Green>

Measure range -35 to 70

Suction temperature sensor <TH4> Themistor <Red>

Measure range -35 to 70

Outdoor temperature sensor <TH3> Themistor < - >

Measure range -25 to 58

Operation current sensor Current sensor

Rotary SW & DIP-SW & Push SW

Electronic expansion valve 1 (Main) EEV coil Operating voltage DC12V Electronic expansion valve 2 (SC-Hex) EEV coil Operating voltage DC12V

4-way valve 4-way valve coil AC220-240V, 50/60Hz 6/5 W Crank case heater

For Inverter Compressor AC240V, 35W

Base heater Field supply

AC220-240V, 35W

LON WORKS Inverter communication

External input 1 (CN131) (

Low noise mode operation) External input 2 (CN132) (Cooling / Heating priority) External input 3 (CN133) (Outdoor unit operation peak control) External input 4 (CN134) (Emergency stop operation)

Dry contact input

Single LED 101 Single LED 102

LED display

Address and function setting

Display the information on operation,

error and

setting with single LED and

7 segment LED.

Control output: DC 0/12-24V, Max.30mA Control output: DC 0/12-24V, Max.

External output 1 (CN136) (Error display) External output 2 (CN137) (Operation display)

ON (Error) / OFF (Normal) ON (Operation) / OFF (Stop)

Communication Input / Output

External Input / Output

I N P U T

U T P U T

Compressor temperature sensor <TH10> Themistor < - > Measure range 10 to 130

Pressure switch

Open 4.2MPa Short 3.2MPa

Fan motor 1 (Upper) DC Brushless motor

7 Segment LED

Compressor

Indoor unit Outdoor unit

Fan motor 2 (Lower) DC Brushless motor

DC Inverter compressor

Brown

2-2-1 Operation / Stop Condition

When cooling requirement capacity or heating requirement capacity from either of the indoor units in the same refrigerant circuit is input, the compressor operates. When all the indoor units in no "cooling requirement capacity" or "heating requirement capacity",

the compressor is stopped. But in the following case, the compressor operates in accordance with operation of each mode.

During 3 minute restart prevention operation Icing protection Failure (Refer to chapter 4, TROUBLE SHOOTING ) Under expansion valve initialization At protective operation

Emergency stop Defrost operation

02-02

2-2 COMPRESSOR OPERATION

2-2-2 Capacity Control

(1) Capacity of compressor operation

By the operation of DC inverter rotary compressor, the amount of required refrigerant circulation acceding to cooling and heating load can be supplied from compressor efficiently.

DC inverter rotary compressor is able to control the amount of required refrigerant circulation in details.

Cooling/Heating load

Capacity of

compressor operation

Total capacity

Peak cut stop operation

Inverter Compressor

(2) Target low-pressure and high-pressure control

In order to make the evaporation pressure of the indoor unit at the proper pressure on a variety of operations, capacity of the compressor will be controlled by low-pressure sensor of the outdoor unit.

In order to make the condensation pressure of the indoor unit at the proper pressure on a variety of operations, capacity of the compressor will be co

ntrolled by high-pressure sensor of the outdoor unit.

Target low-pressure and high pressure temperature depends on system capacity, capacity of compressor operation, pipe length, and capacity shift switch settings.

02-03

2-2-3 Speed Range of Start, Stop, And Operation

On stop mode : 0 rps

On operating mode : 15 - 120 rps

(1) Heating starting process

*The compressr starting process in cool mode does not have the limitated hold controlling.

For Heating operation only, the upper limit speed at starting is made 40rps and is raised in +10rps increments every 60 seconds.

Speed

Time

40rps

60sec

Target speed

180

sec

60sec

50rps

60rps

70rps

60sec

240

sec

300

sec

360

sec

80rps

10rps

The compressor operates at the upper limit speed if the target speed is higher than the upper limit speed.

The compressor operates at the target speed if the target speed is lower than the upper limit speed.

60sec

10rps

+ 225 hidden pages

Fujitsu AUXK018GLAH, AUXK024GLAH, AUXK030GLAH, AUXK034GLAH, AUXK036GLAH Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual