Fujitsu Airstage J-II Service Manual

Small VRF system

for light commercial and home use

SERVICE MANUAL

CONTENTS

1. TEST RUN

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

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

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

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

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

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

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

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

1-2-7 Test run from the Remote controller .................................................................... 01-09

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

1-4 Field Setting And Monitor Mode List....................................................................... 01-11

2. OUTDOOR UNIT OPERATION CONTROL

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

01-07

01-10

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

02-01 02-02

02-02

02-02 02-03

02-05 02-05 02-06

02-07

02-08

02-09 02-09 02-10

02-10

02-11 02-11

3. INDOOR UNIT OPERATION

CONTENTS

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

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

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

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

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

3-2-2 Auto Changeover.................................................................................................

3-2-3 "COOL" Position..................................................................................................

3-2-4 "HEAT" Position..................................................................................................

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

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

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

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

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

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

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

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

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

03-01 03-01

03-01 03-02 03-02 03-04 03-05 03-05

03-06

03-09 03-09 03-10 03-10 03-10 03-10 03-11 03-11

3-7-2 Group Remote Controller..................................................................................... 03-13

3-7-3 Wired Remote Controller..................................................................................... 03-15

4. TROUBLE SHOOTING

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

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

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

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

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

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

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

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

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

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

4-2-7 Trouble Level of System.....................................................................................

4-2-8 Error History Mode..............................................................................................

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

04-01 04-01

04-02

04-03 04-03 04-04 04-05 04-06

04-07

04-08 04-10

04-11

4-3-1 Trouble Shooting With Error Code (INDOOR UNIT)...........................................

4-3-2 Trouble Shooting With Error Code (OUTDOOR UNIT).......................................

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

4-4 SERVICE PARTS INFORMATION............................................................................ 04-84

04-11 04-22 04-63

CONTENTS

5. APPENDING DATA

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

05-01

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

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

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

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

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

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

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

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

6. DISASSEMBLY PROCESS

05-02

05-18

05-19

05-20 05-21 05-22

1. TEST RUN

1-1 EXECUTION PROCEDURE AND EXECUTION PRECAUTIONS

Before execution

Location decision

Confirmation of Refrigerant used

Preparation of execution drawings

Confirmation of installation site

Preparation before execution

Execution 1/2

Sleeve and insert work

Indoor unit installation

Refrigerant piping work

Drain piping work

Duct work

Heat insulation work

Electrical work

Outdoor unit foundation work

Execution procedure and precautions Reason

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

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 4.20MPa >

Prepare the design for the system

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.

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 10mm. Excessive tilt will cause water leakage.

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

Use pipe that is not dirty inside. Confirm the design for the piping ( Diameter, Thickness )

2 3

When the pipe is left standing, protect it. Confirm the angle of separation tube and header correctry.

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 polyvinylchloride pipe as the drain pipe.

Support the drain pipe between 1.5 to 2.0m.

Use pipe of 1 rank up (VP30 or greater) as central piping.

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.

The performance may drop significantly due to the protection controlling

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

Secure the necessary pressure resistance.

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

Outdoor unit installation

Refrigerant piping connection work

Air tightness test

Vacuum drying

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 adaptor to a conventional vacuum pump and use. Pump down sufficiently.

Approximately 1 hour or longer after -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.

Vaccuming mode

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

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

Refrigerant leakage will cause low performance and abnormal stopping.

Mixing in of vacuum pump oil by reverse flow will cause equipment trouble. recommend the vacuuming mode

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.

01-01

Execution 2/2

Execution procedure and precautions Reason

Addition refrigerant charging

Gas leak test

Initial setting

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 opearing the cooling test run. Charge refrigerant bit by bit with cautious operation of valve for the liquid refrigerant back prevention.

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

Set the refrigerant circuit address.

ROTARY SW: REF ADX10, X1

Confirm the DIP SW setting SET 1: Factory setting, SET 2 : All OFF, SET 3 : All OFF, SET 4: Factory setting

Confirm the Terminal resister setting

SET 5-4 OFF: Disable, ON: Enable

[Note] Perform in the power OFF state.

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.

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

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

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

Piping length setting

Address setting for Signal Amp

- When using signal Amps -

Address setting for Indoor unit

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 01-16 Setting mode F2-00 > Set the pipe length to be the nearest indoor unit from the outdoor unit

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

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.

[Note] Perform 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 >

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

[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.

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>

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

[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.

Indoor unit connection check

Test run & adjustment

Turnover & explanation of operation

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 >

Normal operation will not be possible without performing the 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.

01-02

1-2 TEST RUN METHOD

1-2-1 Check Items Before Power ON

Power

source

Outdoor

unit

Check contentsProcedure

Circuit breaker capacity

Type of power source wiring

Supply power source

Wiring on terminal blocks

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

Judgement standard

Outdoor unit: 32A ( AJ*A36,45,54LALH )

Indoor unit: 20A

Leakage current: 30mA 0.1sec or less

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

with the related laws and regulations.

Outdoor unit: 6mm

Indoor unit: 2.5mm2 2 wires + Ground

Outdoor unit side: AC 230V (220-240V)

Indoor unit side: AC 230V (220-240V)

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

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

0.33mm2, 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.

DIP SW SET1, SET4 : Factory setting, SET2,SET3, SET5-1,2,3: ALL OFF Terminal resistor setting SET5 - 4 OFF: Disable, ON: Enable Check the resistance value for each network segment

Refer to the installation manual 7.7

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

2 wires + Ground 4mm

Check

Indoor

unit

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

Appearance

Serial No.

Drain cap installation

Power source wiring connection

Type of communication line

Communication line connection

Type of remote controller wiring

Remote controller wiring connection

Connection piping

Rotary SW setting

DIP-SW setting

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

0.33mm2, shielded wire used (22AWG)

Connection points check & loose terminal panel screws check

0.33mm

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 address (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)

01-03

1-2-2 Check Items After Power ON

[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.

Power ON

Outdoor unit Main

PCB push button SW setting/check

Address

setting/

check

Indoor unit

connection check

Cooling

test run

Check contentsProcedure

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.

Judgement standard

Check

[Note] Turn on all indoor units power in the same refrigerant circuit address. When the system operates with the indoor units remaining no power, it is cause of malfunction.

Function setting

Automatic address setting

Address read

Address record

Address hold check

Indoor unit connection check

Are the necessary functions set ? < For the setting, Refer to the page 01-15 18 >

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 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.

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 >

〜

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

Outdoor unit push button

SW operation

All the indoor units in the same refrigerant 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 >

circuit

shall enter the coolingtest run

All of the

indoor units

operation

(after 30 mins)

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

HPS: 2.7 MPa

LPS: 0.9 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 Main PCB 7-seg. display

Operation voltage

Abnormal sound/

abnormal vibration

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

Between L - N AC230V (220-240V)

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.

Outlet air temperature

Abnormal sound/abnormal vibration

Water leakage check

Remote controller operation

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)

01-04

Indoor unit

individual

operation

Check contentsProcedure

Judgement standard

Fan operation

Louver operation (except duct)

Outlet air temperature

Abnormal sound/abnormal vibration

Water leakage check

Remote controller 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)

Check

These are representative figures of AJYA54LALH 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

Trouble shooting on Test run operation

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>

01-05

1-2-3 Automatic address setting for signal amplifiers When using signal amplifiers

SWITCH POSITION

Outdoor unit printed circuit board

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 conÞ gure settings according to the procedures below.

1: FUNCTION Setting

First 2 digits Last 2 digits

(the display when the main power is turned on)

MODE/EXIT

POWER

ERROR

MODE

LED101

LED102

(GREEN)

(RED)

LED105 LED104

MODE

SELECT ENTER

/EXIT

SW107 SW108 SW109

7 Segment LED Lamp

Push button switch

SELECT

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

ENTER

Automatic address setting for

signal ampliÞ ers

SELECT

ENTER

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

Press the “ENTER” button for more than 3 seconds

End

ENTER

MODE/EXIT

* Setting is complete when the number of unit is displayed

01-06

1-2-4 Automatic address setting for Indoor units

SWITCH POSITION

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

1: FUNCTION Setting

First 2 digits Last 2 digits

(the display when the main power is turned on)

MODE/EXIT

POWER

ERROR

MODE

LED101

LED102

(GREEN)

(RED)

LED105 LED104

MODE

SELECT ENTER

/EXIT

SW107 SW108 SW109

7 Segment LED Lamp

Push button switch

to configure settings according to the procedures below .

First 2 digits

SELECT

ENTER

Last 2 digits

SELECT

ENTER

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

Automatic address setting for indoor units

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

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

It may take about 10 minutes for completing the processing.

Found

End

Error

ENTER

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.

01-07

1-2-5 Indoor unit connection check

SWITCH POSITION

Outdoor unit printed circuit board

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

Turn on the power • of indoor unit and outdoor unit.

LED105

LED104

MODE/EXIT

Set to Function mode [F3].

SELECT

POWER

ERROR

MODE

LED101

LED102

(GREEN)

(RED)

LED105 LED104

MODE

SELECT ENTER

/EXIT

SW107 SW108 SW109

7 Segment LED Lamp

Push button switch

SELECT

continue to press the “SELECT” button until [F3] is displayed.)

ENTER

(When [F4] to [F9] are displayed,

SELECT

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

ENTER

Press the •

“ENTER”

button for

more than 3 seconds.

When indoor unit connection check can not be performed

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

ENTER

(*1)

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

SELECT

ENTER

When error occurs

(*1) The number of connected

indoor units Ex.) When 8 units are connected

(*2)

(*2) Volume ratio of the indoor

units connection

Ex.) When the ratio is 120%

Exit indoor unit connection check • mode.

01-08

Please refer to the following “Error code” for details

ENTER

[ 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

MODE/EXIT

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

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.

SWITCH POSITION

POWER

MODE

ERROR

LED101

(GREEN)

LED102

(RED)

7 Segment LED Lamp

LED105 LED104

Outdoor unit printed circuit board

MODE

/EXIT

SW107 SW108 SW109

SELECT ENTER

Push button switch

TEST RUN SETTING

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

< Monitoring condition >

LED105 LED104

MODE / EXIT

Note

There are the following 2 methods of resetting test operation.

Automatic reset when 60 minutes has elapsed.(1)

Reset when operation stop was performed.(2)

< Mode select condition >

[ Monitoring mode ] [ Setting mode ]

SELECT

ENTER

LED105 LED104LED105 LED104 LED105 LED104LED105 LED104

< Fuction select condition >

[ Cooling test run ]

LED105 LED104

ENTER

SELECT

Press the ENTER button for at least 3 seconds.

[ Heating test run ]

< Pursuance completion >

LED105 LED104

SELECT

[ Function mode ]

SELECT

[ Error history mode ]

[ Central control setting

[ Test run stop ]

SELECT

LED105 LED104

SELECT

Forced reset ]

LED105 LED104

ENTER

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

< Return to mode select condition >

LED105 LED104

MODE / EXIT

< Return to monitoring condition >

LED105 LED104

01-09

example, Normal indicate : [ Cooling mode ]

1-2-7 Test Run From Remote Controller

1. Standard wired 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.

Perform the test operation for 60 minutes.

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.

UTY - RNK

SET TEMP.

TIMER MODE

CLOCK ADJUST

SET BACK

TIMER DELETE TIMER SET

DAY

DAY OFF

START / STOP

FAN MODE

2. Standard wireless 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.

3. Simple remote controller

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

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

button and

button

START / STOP button

TEST RUN button

UTY - LNH

START

STOP

ECONOMY

FILTER RESET

SET

TEMP.

SLEEP

TIMER

TIMER MODE

CLOCK

TEST

ADJUST

RUN

UTY - RSK

FANMODE

SET

SWING

RESET

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.

01-10

SET

UTY-DCG

Monitor - All

Coll

℃

25.0

Setup Menu

Central Controller Setting

05/31 03:59

Indoor unit Special setting

Select All

Off

Operation

Details

Monitor Group

Setup Menu

Help

Indoor unit Special Setting

Test Operation

Indoor Unit Set Temp. Range

Test Operation

RCG_05

05/31 03:59

Filter Sign

R.C. Prohibition

05/31 03:59

Group

Select All

Identify Unit

Clear Unit

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

5. Touch panel controller

Test run operating procedure

UTY - DTG

Monitor Mode

All

Lange Group

Office A

Cool

21.5 C

Room

101

Off

Meeting 1

Heat

21.5 C

Conference

Heat

21.5 C

Group Error

Schedule Filter Sign

Op.Controlled Op.Restricted

Monitor Mode

All

Lange Group

Name

Office A

Expand

Top Up

Office B

Heat

21.0

Restrant

Auto

24.0 C

Meeting

Off

Conference B

Auto

22.0

Mode Set Temp.

Top Up

Status Mode

Heat

10/11.2008.Mar. 02:20 PM

Down

PC Room

Entrance

Meeting

Parking lot

Off

10/11.2008.Mar. 02:20 PM

Down

Set Temp

21.5 C

Fan

High

R/C Prohibit

List

Cool

26.0 C

Auto

24.0

Heat

21.0

List

Status: On

Setting

Schedule

(1)

Select All

Clear All

Operation

(1)

(2)

Off

( * )

Status: On

Setting

Schedule

(1)

Office B

PC Room

Mixed

Mixed Mixed Mixed

Auto

24.0 C

Low

Mixed

Select All

Clear All

Room 101

Restrant

Entrance

Meeting 1

Group Error

Schedule Filter Sign Op. Controlled Op. Restricted

Off

RC Prohibition All On/Off On

Cool

Mode Temp. Timer

26.0 C

Filter

Auto

Operation

Off

(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".

01-12

(1)

(2)

( * )

Operation Setting

Control Unit :

operation

Off

Air Flow Direction Economy Anti Freeze Filter Sign Test Operation

Optional

Setting

Cancel

Meeting Room

Mode Set Temp. Fan

Auto

24.0 C

Cool

Dry

Fan

Heat

Operation Controlled

10/11.2008.Mar. 02:20 PM

R/C Prohibition

All

Auto

High

Med

Low

Quiet

On/Off

Mode

Temp.

Timer

Filter

Status: On

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

( * )

(3)

Operation Setting

10/11.2008.Mar. 02:20 PM

Status: On

SettingOptional

Air Flow Direction

Down

Swing

Left Right

Cancel

Economy

Off

Test

Special State

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

Anti Freeze

Operation

Off

Filter Sign

Reset

Start

(4)

(5)

(4) Send (start) test run by pressing "Start" and then pressing "OK" on the details setting screen. Test run continues for 60 minutes. 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

Transferring data. Please wait.

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.

01-13

1-3 TEST RUN CONTROL

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.

Operating Mode

Fan speed Hi Hi

Room Temperature Indication 18 30

Vertical Air Direction Panel

Swing

*EXAMPLE

EXCEPT FOR THE DUCT MODEL DUCT TYPE

Cooling Heating Cooling Heating

Hi Hi

18 30

Position

OFF OFF

Position

COMPACT CASSETTE TYPE

CEILING TYPE

COMPACT WALL MOUNTED TYPE

01-14

1-4 Field Setting And Monitor Mode List for Outdoor unit

Push switch onoutdoor unit PCB

Monitor mode

[ F1 ]

Classification

Device and system

Operation of each part

Time guard 20 Accumulated current time Accumulated current time is displayed

Refrigerant cycle data 1

Refrigerant cycle data 2

ITEM CODE No.

00 Connected number of indoor unit The number of the communicating unit is displayed

Software version of outdoor unit

02 Software version of INV PCB

03 Software version of communication PCB

10 Rotational speed of outdoor unit fan motor The rotational speed of the outdoor unit fan motor is displayed

11 Rotational speed of INV compressor The rotational speed of the compressor is displayed

12 Current value of INV compressor Current value of INV compressor is displayed

14 Pulse of EEV1 Pulse of EEV1 is displayed

Pulse of EEV2 Pulse of EEV2 is displayed

21 INV compressor accumulated time

[ Cooling ]

22 INV compressor accumulated time

[ Heating ]

30 Information on Thermistor 1

( INV compressor discharge temperature )

Information on Thermistor 3

( Outdoor temperature )

33 Information on Thermistor 4

( Suction temperature )

Information on Thermistor 5

( Heat-exchanger temperature )

Information on Thermistor 7

( Liquid temperature 2 )

Information on Thermistor 8

( Sub-cool heat-exchanger inlet temperature )

38 Information on Thermistor 9

( Sub-cool heat-exchanger outlet temperature )

39 Information on Thermistor 10

( INV compressor temperature )

Information on pressure sensor 1

( High pressure sensor )

Information on pressure sensor 2

( Low pressure sensor )

Setting Mode

Information contents

Software version :

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

It skips when there is no suffix

[ rpm ]

[ rps ]

[ A ]

[ pls ]

[ 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 ]

The value of the Thermistor 1 is displayed

[°C ] or [°F ]

The value of the Thermistor 3 is displayed

[°C ] or [°F ]

The value of the Thermistor 4 is displayed

[°C ] or [°F ]

The value of the Thermistor 5 is displayed

[°C ] or [°F ]

The value of the Thermistor 7 is displayed

[°C ] or [°F ]

The value of the Thermistor 8 is displayed

[°C ] or [°F ]

The value of the Thermistor 9 is displayed

[°C ] or [°F ]

The value of the Thermistor 10 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 ]

01-15

Push switch on outdoor unit PCB

Setting mode

[ F2 ]

Classification

ITEM CODE No.

Setting Mode

ITEM CODE No.

Install 00 Pipe length setting 00 40-65m

01 0-40m 02 65-90m 03 90-120m

Correction 10

Sequential start shift

Setting is forbidden

04 00 01 02

Setting is forbidden

Standard

Cooling capacity shift 00 Normal mode

01 Save energy mode 1 (+2°C) 02 High power mode 1 (-2°C)

03 High power mode 2 (-4°C) 04 High power mode 3 (-5°C)

Heating capacity shift

00 Normal mode 01 Save energy mode (-2°C) 02 High power mode 1 (+2°C) 03 High power mode 2 (+4°C)

13 Defrost setting shift 00 End temperature:Normal

01 End temperature:Higher

Change of

function 1

14 Pressure equalization time shift

before defrosting start

20 Switching between forced stop or 00 Forced stop

emergency stop

00 No time shift

01 Shift 1 ( 30 sec.) 02 Shift 2 ( 60 sec.) 03

Shift 3 ( 90 sec.)

Shift 3 ( 120 sec.)

01 Emergency stop

21 Operation mode selecting method 00 Priority given to the first command

01 Priority given to the external input of outdoor unit 02 Priority given to the master indoor unit

Snow falling protection fan mode

Setting is forbidden

Interval setting for snow falling protection fan mode

Setting is forbidden

High static pressure mode

Setting is forbidden

Oil recovery

Setting is forbidden

00 Normal operation 01 00 Standard 01 02 03 00 Standard 01 02

Standard

00 01

02 03

Oil recovery Abnormal

low pressure protection control

Setting is forbidden

27 Error code Notification

00 01

Standard

Enable Disable

28 Change of unit (Temperature) 00 Celsius(°C)

01 Fahrenheit ( F)

29 Change of unit (Pressure) 00 MPa

01 psi Change of function 2

30 Energy saving level setting 00 Level 1 (stop)

01 Level 2 (operated at 40% capacity)

02 Level 3 (operated at 60% capacity)

03 Level 4 (operated at 80% capacity)

04 Level 5 (operated at 100% capacity)

Heating Starting prosess

Setting is forbidden

Low noise 40 Capacity priority setting 00 Off (quiet priority) setting 1

(in low noise mode)

41 Low noise mode setting

Standard

01 On (capacity priority)

00 Off (Normal)

01 On (Low noise mode operation is always done)

Change of function 3

Change of function 4

Low noise mode operation level

Setting is forbidden

Back up operation

Setting is forbidden

Electricity meter No. setting 1

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

Electricity meter No. setting 2

(Set the hundreds digit of the No. of the electricity meter connected to CN135.)

Electricity meter pulse setting 1

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

Electricity meter pulse setting 2

(Set the hundreds digit and thousands digit of the electricity meter pulse setting connected to CN135.)

*3 : 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" *4 : When the electricity meter pulse setting is set to "0000", the pulses input to CN135 become ineffective. Available setting number is "0001" to "9999"

Setting is forbidden: Any of problems caused by changing these setting is not covered by the warranty.

Only for solution :

Only when the refrigerant noise during Defrosting was pointed out. It is the case that the

00 Standard (47dB)

00 Standard

00~99 Setting number x00~x99

( Refer to Design & Technical Manual for details.)

00~02 Setting number 0xx~2xx 00

( Refer to Design & Technical Manual for details.)

00~99 Setting number xx00~xx99 00

( Refer to Design & Technical Manual for details.)

00~99 Setting number 00xx~99xx 00

( Refer to Design & Technical Manual for details.)

compressor operating time in heating will be shorter.

01-16

Setting Function

Only for solution

Default

Push switch on outdoor unit PCB

Function mode

[ F3 ]

ITEM CODE No.

Forced operation 00 Cooling test run

01 Heating test run Forced thermostat-ON in Heating.

Install and maintenance 1

02 Test run stop Test run is stopped.

10 Signal amplifier automatic address Automatic address setting operates for signal amplifier.

11 Indoor unit automatic address

Setting Mode

Setting Function

Forced thermostat-ON in Cooling.

Automatic address setting operates for indoor unit of same refrigerant circuit.

Indoor unit connection check

Install and maintenance 2

Clear 30 Error history clear All the abnormal code histories are cleared.

Reset 40 Abnormal reset It was displayed when abnormality occurs, and abnormal

Specialtyfunction 91 Foreced Central control function release

21 Vacuuming mode Vacuuming mode operatesRefer to page 01-01 for the function.

32 Current time clear Accumulated current time becomes [ 0 ]

33 INV compressor accumulated time clear Accumulated time of the INV compressor becomes [ 0 ]

34 Constant Speed compressor accumulated

time clear

35 Field setting all clear Return to default the all set items.

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

*

Maximum memorized indoor unit number reset

Foreced Normal operation release Normal operation foreced release

The number of indoor units and the total capacity of indoor units of same refrigerant circuit.

Not in Use on J-Series

The information of the number of indoor units and the total capacity of indoor units are 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. Maximum memorized indoor unit number is reset.

"E14.5:Indoor unit number shortage" error is cleared.

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.

Push switch on outdoor unit PCB

Error History Mode

[ F9 ]

Error history

ITEM CODE No.

Meaning of Error History Number

1 time ago (Newest)

2 times ago

3 times ago

4 times ago

5 times ago

6 times ago

7 times ago

8 times ago

9 times ago

10 times ago (Oldest)

Information contents

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.

Refer to Chapter 4.TROUBLE SHOOTING

4-2-3 Error Code List of Outdoor unit

< Reset Error Item List By Abnormal Reset Setting >

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

01-17

1-5 Field Setting / Function Setting for Indoor unit

23 Vertical airflow direction 00 Default

02 Right half

Correction

Cool air temperature trigger

00 Default (0°C)

Indoor unit field setting

setting by remote controller

Classification

Address

Filter 11 Filter indicator Interval 00 Default

Airflow 20 Ceiling airflow 00 Default

ITEM CODE No.

01 Indoor unit address 00~63 00~63 00 02 Refrigerant circuit address 00~99 00~99 00

13 Filter sign display 00 Enable

(Cassette type only) 01 High ceiling

24 Horizontal swing airflow direction 00 Default

Static Pressure setting

Setting Mode

- Slim Duct Only -

The Range of static pressure is different from one model to other.

31 Heat air temperature trigger 00 Default (0°C)

Temperature correction in Auto

Change of 40 Auto restart 00 Enable Function 1

43 Cool air prevention 00 Enable

46 External control 00 Start / Stop

47 Error report target 00 All

ITEM CODE No.

Longer

01 02 Shorter

01 Disable 02 Display only on central remote control

01 Raise

01 Left half

0 Pa

10 Pa

20 Pa

30 Pa

40 Pa

50 Pa

60 Pa

70 Pa

80 Pa

90 Pa

25 Pa

01 Temperature overshoot setting (+2 02 Temperature undershoot setting (-2

01 Temperature undershoot setting (-6 02 Temperature slightly undershoot setting (-4 03 Temperature overshoot setting (+4

Disable

Enable (Nonfunctional on J2 Series)

01 Disable

01 Disable (Ventilation mode)

01 Emergency stop

01 Display only for central remote control

Setting Function

Model name Range of static pressure AR XD 07L ATH AR XD 09 LATH AR XD12L ATH AR XD14L ATH AR XD18LAT H AR XD 24L ATH 0 to 50 Pa

0 to 90 Pa

°C)

Default

01-18

2. OUTDOOR UNIT OPERATION CONTROL

2. OUTDOOR UNIT

2-1 INPUT / OUTPUT LIST

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> Outdoor temperature sensor <TH3> Themistor < - > Suction temperature sensor <TH4> Themistor <Red>

Heat exchanger temperature sensor <TH5> Themistor <Pink> Liquid temperature sensor <TH7> Themistor <Green>

Sub-cool heat exchanger (inlet) sensor <TH8> Themistor <White> Sub-cool heat exchanger (outlet) sensor<TH9> Themistor <Brown>

Compressor temperature sensor <TH10> Themistor < - > Measure range 10 to 130 Operation current sensor Pressure switch

Rotary SW & DIP-SW & Push SW

Input / output or kind of detail Control range

Measure range 10 to 130 Measure range -25 to 58 Measure range -35 to 70 Measure range -35 to 70 Measure range -35 to 70 Measure range -35 to 70 Measure range -35 to 70

Current transformer Pressure switch

Address and function setting

Open 4.2MPa Short 3.2MPa

O U T P U T

Communication Input / Output

External Input / Output

LED display

Compressor Electronic expansion valve 1 (Main) EEV coil Operating voltage DC12V

Electronic expansion valve 2 (SC-Hex) EEV coil Operating voltage DC12V Fan motor 1 (Upper) DC Brushless motor Fan motor 2 (Lower) DC Brushless motor 4-way valve 4-way valve coil AC220-240V, 50/60Hz 6/5 W Solenoid valve Comp pressure equalizing valve AC220-240V, 50Hz, 6W Crank case heater For Inverter Compressor AC240V, 25W

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)

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

Single LED 101 Single LED 102 7 Segment LED

Magnetic relay

Indoor unit Outdoor unit

Dry contact input

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

Display the information on operation, error and setting with single LED and 7 segment LED.

Operation coil AC220-240V, 50Hz

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

02-01

2-2 COMPRESSOR OPERATION

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", 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 ) Oil recovery Under expansion valve initialization At protective operation

Emergency stop Defrost operation

Peak cut stop operation

the compressor

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.

Total capacity

Capacity of

compressor operation

Inverter Compressor

02-02

Cooling/Heating load

+ 179 hidden pages

Fujitsu Airstage J-II Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual