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Daikin 3MXS40K2V1B, Service Manual

The Daikin 3MXS40K2V1B boasts exceptional performance in heating and cooling. To ensure hassle-free operation and efficient maintenance, be sure to download the free Service Manual from manualshive.com. This comprehensive manual provides step-by-step instructions and is readily available for instant download.

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Wiring Diagrams

SiBE121135

442

Appendix

2.2

Indoor Unit

2.2.1 Wall Mounted Type

FTXG25/35/50JV1BW(A)

FTXS20/25K2V1B, CTXS15/35K2V1B

X1M

1

A1P

F1U

H1

S21

2

BLK

1

S25

3.15A

~

3

2

WHT

A3P

C102

V1

1

1

BLK

H2

OUTDOOR

RED

3

MR10

S36

HA

BLK

GRN

/

BLK

3

3

YLW

C101

H3

GRN

FIELD WIRING.

/YLW

FG

A2P

S51

S46

t˚

S200

BLK

1

1

7

1

S42

R1T

BLK

7

S41

S32

RED

S52

BLK

M

1

2

3

10

2

8

5

9

7

4

1

6

BLK

1

3

4

BLK

BLK

BLK

BLK

BLK

BLK

BLK

BLK

3

1

8

BLU

M1F

H1P

BLK

BRN

BLK

CAUTION

BLU

BLU

ORG

PNK

PNK

BLK

BLK

RED

RED

H2P

YL

W

YL

W

ORG

ORG

BLK

1

WHT

BLK

BLK

BLK

BLK

BLK

BLK

BLK

BLK

S1W

9

9

t˚

MSW

MSW

BZ

M

R2T

INDOOR

S1C

M1

WIRELESS 

REMOTE 

CONTROLLER

INTELLIGENT EYE 

SENSOR

SIGNAL 

RECEIVER

TRANSMISSION 

CIRCUIT

M1S 

(MAIN)

M2S 

(SUB)

FG
F1U
H1P, H2P
M1F
M1S, M2S
M1
A1P~A3P
R1T, R2T
S25~S200
S1W
S1C
X1M
BZ

: FRAME GROUND
: FUSE
: PILOT LAMP
: FAN MOTOR
: SWING MOTOR
: STEPPING MOTOR
: PRINTED CIRCUIT BOARD
: THERMISTOR
: CONNECTOR
: OPERATION SWITCH
: LIMIT SWITCH
: TERMINAL STRIP
: BUZZER
: PROTECTIVE EARTH

NOTE THAT OPERATION WILL 
RESTART AUTOMATICALLY IF 
THE MAIN POWER SUPPLY IS 
TURNED OFF AND THEN BACK 
ON AGAIN.

3D065507D

PCB 2

PCB 1

S26

S27

S27

S27

FIELD WIRING.

BLK

1

1

1

10

BLK

GRN/YLW

BLK

H1P

LED1

H1P

LED1

H1P

LED1

FG2

BLK

BLK

3

H2P

LED2

H2P

LED2

H2P

LED2

FG1

BLK

2

BLK

RECTIFIER

H3

BLK

H3P

LED3

H3P

LED3

H3P

LED3

+

3

3

OUTDOOR

–

BLK

1

MR10

V1

H2

1

BLK

10

10

10

2

2

H1

S1W

1

1

t

°

X1M

+

–

R1T

IPM200

1

1

1

1

3

2

5

10

S403

1

6

9

12

S25

S32

S200

S6

INDOOR

BLK

BLK

BLK

BLK

BLK

BLK

BLK

BLK

BLK

BLK

BLK

BLK

BLK

BLK

BLK

BLK

BLK

BLK

BLK

BLK

BLK

BLK

BLK

BLK

BLK

BLK

BLK

BLK

BLK

BLK

BLK

BLK

BLK

BLK

BLK

YLWYLW

BLK

BLK

BLK

BLK

BLK

BLK

BLK

BLK

BLK

BLK

BLK

WHTWHTWHT

BLU

RED

BLU

RED

BLKBLKBLK

ORGORG

S36

S36

S36

4

1

4

1

4

1

4

1

1

6

1

6

1

6

1

6

S601

S601

S601

S601

S602

S602

S602

S602

M

M

t

°

M1S

M1S

M1F

PCB 3 R2T

R2T

NOTE)

S21

S21

S21

S21

PCB 4

OPTION

OPTION

Z1C

N=3

GRN

GRN

RED

WHT

BLK

Z2C
N=2

: FRAME GROUND

: FUSE

: HARNESS

: PILOT LAMP

: FAN MOTOR

: SWING MOTOR

: PRINTED CIRCUIT BOARD

: THERMISTOR

: CONNECTOR

: OPERATION SWITCH

: FERRITE CORE

: TERMINAL STRIP

: PROTECTIVE EARTH

FG1, FG2

F1U

H1~H3

H1P~H3P

M1F

M1S

PCB1~PCB4

R1T, R2T

S6~S602

S1W

Z1C, Z2C

X1M

CAUTION

NOTE THAT OPERATION WILL 
RESTART AUTOMATICALLY IF 
THE MAIN POWER SUPPLY IS 
TURNED OFF AND THEN BACK 
ON AGAIN.

TRANSMISSION 

CIRCUIT

WIRELESS 

REMOTE 

CONTROLLER

F1U 

3.15A

INTELLIGENT EYE 

SENSOR

SIGNAL 

RECEIVER

1. PCB4 SHOWS THE CASE OF 

OPTIONAL CONNECTION.

3D073474C

Summary of Contents for 3MXS40K2V1B

Page 1: ...Service Manual SiBE121135 E F G K Series Applied Models O Inverter Multi Cooling Only O Inverter Multi Heat Pump ...

Page 2: ...40K2V1B 3MXS68G2V1B 4MXS80E2V3B 3MXS52E3V1B 4MXS68F2V1B 5MXS90E2V3B Indoor Unit FTXG25JV1BW FVXG25K2V1B FCQG35FVEB FTXG25JV1BA FVXG35K2V1B FCQG50FVEB FTXG35JV1BW FVXG50K2V1B FCQG60FVEB FTXG35JV1BA FVXS25FV1B FFQ25B9V1B FTXG50JV1BW FVXS35FV1B FFQ35B9V1B FTXG50JV1BA FVXS50FV1B FFQ50B9V1B CTXS15K2V1B FLXS25BAVMB FFQ60B9V1B FTXS20K2V1B FLXS35BAVMB FHQ35BWV1B FTXS25K2V1B FLXS50BAVMB FHQ50BWV1B CTXS35K2...

Page 3: ... 41 2 2 FTXS20 25K2V1B CTXS15 35K2V1B 44 2 3 FTXS25 35 42 50J2V1B 46 2 4 FTXS60 71GV1B 49 2 5 FVXG25 35 50K2V1B 52 2 6 FVXS25 35 50FV1B 55 2 7 FLXS25 35 50 60BAVMB 57 2 8 FDXS25 35E7VMB FDXS50 60C7VMB 59 2 9 FCQG35 50 60FVEB 61 2 10 FFQ25 35 50 60B9V1B 64 2 11 FHQ35 50 60BWV1B 66 2 12 FDBQ25B8V1 68 2 13 FBQ35 50 60C8VEB 70 3 Wired Remote Controller 73 3 1 BRC1D528 73 3 2 BRC1E52A7 BRC1E52B7 74 Par...

Page 4: ...emperature Control 112 4 5 Input Current Control 113 4 6 Freeze up Protection Control 113 4 7 Heating Peak cut Control 114 4 8 Outdoor Fan Control 115 4 9 Liquid Compression Protection Function 115 4 10 Defrost Control 116 4 11 Low Hz High Pressure Limit 117 4 12 Outdoor Electronic Expansion Valve Control 117 4 13 Malfunctions 122 Part 5 Operation Manual 124 1 System Configuration 125 2 RA Indoor ...

Page 5: ... 4 Swing Motor Lock FHQ Series Only 289 6 5 Drain System Abnormality 290 6 6 Thermistor or Related Abnormality SA Indoor Unit 291 6 7 Remote Controller Thermistor Abnormality 292 6 8 Signal Transmission Error between Indoor Unit and Remote Controller 293 6 9 Signal Transmission Error between MAIN Remote Controller and SUB Remote Controller 294 6 10 Field Setting Abnormality 295 7 Troubleshooting f...

Page 6: ...ctrical Box 341 1 3 Removal of PCBs 349 1 4 Removal of Outdoor Fan Fan Motor 354 1 5 Removal of Sound Blankets 356 1 6 Removal of Coils Thermistors 360 1 7 Removal of Distributor 363 1 8 Removal of Four Way Valve 364 1 9 Removal of Compressor 365 2 Outdoor Unit 80 90 Class 367 2 1 Removal of Outer Panels 367 2 2 Removal of Electrical Box 382 2 3 Removal of PCBs 388 2 4 Removal of Fan Motor 392 2 5...

Page 7: ...ts vi 6 Application of Silicon Grease to a Power Transistor and a Diode Bridge 423 Part 9 Appendix 424 1 Piping Diagrams 425 1 1 Outdoor Unit 425 1 2 Indoor Unit 430 2 Wiring Diagrams 437 2 1 Outdoor Unit 437 2 2 Indoor Unit 442 ...

Page 8: ...power cable plug from the plug socket before disassembling the equipment for repair Working on the equipment that is connected to the power supply may cause an electrical shock If it is necessary to supply power to the equipment to conduct the repair or inspecting the circuits do not touch any electrically charged sections of the equipment If the refrigerant gas is discharged during the repair wor...

Page 9: ...ectrical shock Do not clean the air conditioner by splashing water Washing the unit with water may cause an electrical shock Be sure to provide the grounding when repairing the equipment in a humid or wet place to avoid electrical shocks Be sure to turn off the power switch and unplug the power cable when cleaning the equipment The internal fan rotates at a high speed and may cause injury Be sure ...

Page 10: ...eat generation or fire When wiring between the indoor and outdoor units make sure that the terminal cover does not lift off or dismount because of the cable If the cover is not mounted properly the terminal connection section may cause an electrical shock excessive heat generation or fire Do not damage or modify the power cable Damaged or modified power cable may cause an electrical shock or fire ...

Page 11: ...ent children from swallowing it If a child swallows the coin battery see a doctor immediately Warning Caution Installation of a leakage breaker is necessary in some cases depending on the conditions of the installation site to prevent electrical shocks Do not install the equipment in a place where there is a possibility of combustible gas leaks If the combustible gas leaks and remains around the u...

Page 12: ...e to install the packing and seal on the installation frame properly If the packing and seal are not installed properly water may enter the room and wet the furniture and floor For unitary type only Caution Icon Type of Information Description Note Note A note provides information that is not indispensable but may nevertheless be valuable to the reader such as tips and tricks Caution Caution A cau...

Page 13: ...SiBE121135 List of Functions 1 Part 1 List of Functions 1 Cooling Only 2 1 1 Outdoor Unit 2 1 2 Indoor Unit 3 2 Heat Pump 6 2 1 Outdoor Unit 6 2 2 Indoor Unit 7 ...

Page 14: ...start after Power Failure 3 D Airflow Self Diagnosis Digital LED Display COMFORT AIRFLOW Operation Wiring Error Check Function Comfort Control Auto Fan Speed Anti Corrosion Treatment of Outdoor Heat Exchanger Indoor Unit Quiet Operation Flexibility Multi Split Split Type Compatible Indoor Unit NIGHT QUIET Mode Automatic H P C O Compatible Indoor Unit OUTDOOR UNIT QUIET Operation Manual Flexible Po...

Page 15: ...e 3 D Airflow Self Diagnosis Digital LED Display COMFORT AIRFLOW Operation Wiring Error Check Function Comfort Control Auto Fan Speed Anti Corrosion Treatment of Outdoor Heat Exchanger Indoor Unit Quiet Operation Flexibility Multi Split Split Type Compatible Indoor Unit NIGHT QUIET Mode Automatic H P C O Compatible Indoor Unit OUTDOOR UNIT QUIET Operation Manual Flexible Power Supply Correspondenc...

Page 16: ... after Power Failure Comfort Control Auto Fan Speed Self Diagnosis Digital LED Display Indoor Unit Quiet Operation Wiring Error Check Function NIGHT QUIET Mode Automatic Anti Corrosion Treatment of Outdoor Heat Exchanger OUTDOOR UNIT QUIET Operation Manual Flexibility Multi Split Split Type Compatible Indoor Unit 2 Area INTELLIGENT EYE Operation H P C O Compatible Indoor Unit INTELLIGENT EYE Opera...

Page 17: ...ty Durability Auto Restart after Power Failure Comfort Control Auto Fan Speed Self Diagnosis Digital LED Display Indoor Unit Quiet Operation Wiring Error Check Function NIGHT QUIET Mode Automatic Anti Corrosion Treatment of Outdoor Heat Exchanger OUTDOOR UNIT QUIET Operation Manual Flexibility Multi Split Split Type Compatible Indoor Unit 2 Area INTELLIGENT EYE Operation H P C O Compatible Indoor ...

Page 18: ...r Power Failure Horizontal Auto Swing Right and Left Self Diagnosis Digital LED Display 3 D Airflow Wiring Error Check Function COMFORT AIRFLOW Operation Anti Corrosion Treatment of Outdoor Heat Exchanger Comfort Control Auto Fan Speed Flexibility Multi Split Split Type Compatible Indoor Unit Indoor Unit Quiet Operation H P C O Compatible Indoor Unit NIGHT QUIET Mode Automatic Flexible Power Suppl...

Page 19: ...Airflow Wiring Error Check Function COMFORT AIRFLOW Operation Anti Corrosion Treatment of Outdoor Heat Exchanger Comfort Control Auto Fan Speed Indoor Unit Quiet Operation Flexibility Multi Split Split Type Compatible Indoor Unit NIGHT QUIET Mode Automatic OUTDOOR UNIT QUIET Operation Manual H P C O Compatible Indoor Unit INTELLIGENT EYE Operation Flexible Power Supply Correspondence 2 Area INTELL...

Page 20: ...D Airflow Wiring Error Check Function COMFORT AIRFLOW Operation Anti Corrosion Treatment of Outdoor Heat Exchanger Comfort Control Auto Fan Speed Indoor Unit Quiet Operation Flexibility Multi Split Split Type Compatible Indoor Unit NIGHT QUIET Mode Automatic OUTDOOR UNIT QUIET Operation Manual H P C O Compatible Indoor Unit INTELLIGENT EYE Operation Flexible Power Supply Correspondence 2 Area INTE...

Page 21: ...ay 3 D Airflow Wiring Error Check Function COMFORT AIRFLOW Operation Anti Corrosion Treatment of Outdoor Heat Exchanger Comfort Control Auto Fan Speed Flexibility Multi Split Split Type Compatible Indoor Unit Indoor Unit Quiet Operation H P C O Compatible Indoor Unit NIGHT QUIET Mode Automatic Flexible Power Supply Correspondence OUTDOOR UNIT QUIET Operation Manual High Ceiling Application 2 Area ...

Page 22: ...irflow Wiring Error Check Function COMFORT AIRFLOW Operation Anti Corrosion Treatment of Outdoor Heat Exchanger Comfort Control Auto Fan Speed Flexibility Multi Split Split Type Compatible Indoor Unit Indoor Unit Quiet Operation H P C O Compatible Indoor Unit NIGHT QUIET Mode Automatic Flexible Power Supply Correspondence OUTDOOR UNIT QUIET Operation Manual High Ceiling Application 2 Area INTELLIG...

Page 23: ...Digital LED Display 3 D Airflow Wiring Error Check Function COMFORT AIRFLOW Operation Anti Corrosion Treatment of Outdoor Heat Exchanger Comfort Control Auto Fan Speed Flexibility Multi Split Split Type Compatible Indoor Unit Indoor Unit Quiet Operation H P C O Compatible Indoor Unit NIGHT QUIET Mode Automatic Flexible Power Supply Correspondence OUTDOOR UNIT QUIET Operation Manual High Ceiling Ap...

Page 24: ...er Failure COMFORT AIRFLOW Operation Self Diagnosis Digital LED Display Comfort Control Auto Fan Speed Wiring Error Check Function Indoor Unit Quiet Operation Anti Corrosion Treatment of Outdoor Heat Exchanger NIGHT QUIET Mode Automatic Flexibility Multi Split Split Type Compatible Indoor Unit OUTDOOR UNIT QUIET Operation Manual H P C O Compatible Indoor Unit 2 Area INTELLIGENT EYE Operation Flexi...

Page 25: ...fter Power Failure COMFORT AIRFLOW Operation Self Diagnosis Digital LED Display Comfort Control Auto Fan Speed Wiring Error Check Function Indoor Unit Quiet Operation Anti Corrosion Treatment of Outdoor Heat Exchanger NIGHT QUIET Mode Automatic Flexibility Multi Split Split Type Compatible Indoor Unit OUTDOOR UNIT QUIET Operation Manual H P C O Compatible Indoor Unit 2 Area INTELLIGENT EYE Operati...

Page 26: ...SiBE121135 14 Specifications Part 2 Specifications 1 Cooling Only 15 1 1 Outdoor Unit 15 1 2 Indoor Unit 17 2 Heat Pump 22 2 1 Outdoor Unit 22 2 2 Indoor Unit 25 ...

Page 27: ...aged Dimensions H W D mm 797 992 390 797 992 390 Weight Mass kg 49 49 Gross Weight Gross Mass kg 56 56 Sound Pressure Level dB A 46 46 Sound Power Level dB 59 59 Piping Connection Liquid mm φ 6 4 3 φ 6 4 4 Gas mm φ 9 5 3 φ 9 5 2 φ 12 7 2 Drain mm φ 18 0 φ 18 0 Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes No of Wiring Connection 3 for Power Supply 4 for Interunit Wiring 3 for...

Page 28: ...7 992 390 900 925 390 Weight Mass kg 57 69 Gross Weight Gross Mass kg 61 78 Sound Pressure Level dB A 48 48 Sound Power Level dB 61 62 Piping Connection Liquid mm φ 6 4 4 φ 6 4 5 Gas mm φ 9 5 2 φ 12 7 1 φ 15 9 1 φ 9 5 2 φ 12 7 1 φ 15 9 2 Drain mm φ 18 0 φ 25 0 Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes No of Wiring Connection 3 for Power Supply 4 for Interunit Wiring 3 for...

Page 29: ...pes Piping Connection Liquid mm φ 6 4 φ 6 4 Gas mm φ 9 5 φ 9 5 Drain mm φ 18 0 φ 18 0 Drawing No 3D070570A 3D070571A Model FTXS42J2V1B FTXS50J2V1B Rated Capacity 4 2 kW Class 5 0 kW Class Front Panel Color White White Airflow Rate H m min cfm 11 3 399 11 6 410 M 9 0 318 9 2 325 L 6 8 240 7 0 247 SL 5 9 208 6 0 212 Fan Type Cross Flow Fan Cross Flow Fan Motor Output W 23 23 Speed Steps 5 Steps Quie...

Page 30: ...ble Mildew Proof Running Current Rated A 0 19 0 18 0 17 0 21 0 20 0 19 Power Consumption Rated W 40 40 40 45 45 45 Power Factor Rated 95 7 96 6 98 0 97 4 97 8 98 7 Temperature Control Microcomputer Control Microcomputer Control Dimensions H W D mm 290 1 050 250 290 1 050 250 Packaged Dimensions H W D mm 361 1 145 364 361 1 145 364 Weight Mass kg 12 12 Gross Weight Gross Mass kg 18 18 Sound Pressur...

Page 31: ...Liquid mm φ 6 4 φ 6 4 Gas mm φ 9 5 φ 9 5 Drain mm VP20 O D φ 26 I D φ 20 VP20 O D φ 26 I D φ 20 Drawing No 3D060406 3D060408 Model FFQ50B9V1B FFQ60B9V1B Rated Capacity 5 0 kW Class 6 0 kW Class Decoration Panel Model BYFQ60B8W1 BYFQ60B8W1 Color White White Dimensions H W D mm 55 700 700 55 700 700 Weight Mass kg 2 7 2 7 Airflow Rate H m min cfm 12 0 424 15 5 530 L 8 0 283 10 0 353 Fan Type Turbo F...

Page 32: ...38 33 Sound Power Level dB 53 54 Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes Piping Connection Liquid mm φ 6 4 φ 6 4 Gas mm φ 9 5 φ 12 7 Drain mm VP20 O D φ 26 I D φ 20 VP20 O D φ 26 I D φ 20 Drawing No 3D075708 3D075709 Model FHQ60BWV1B Rated Capacity 6 0 kW Class Panel Color White Airflow Rate H m min 17 0 600 L 13 0 459 Fan Type Sirocco Fan Motor Output W 62 Speed Steps ...

Page 33: ... φ 6 35 Flare Gas mm φ 9 52 φ 9 52 Flare Drain mm O D φ 27 2 VP25 O D φ 32 I D φ 25 Model FBQ50C8VEB FBQ60C8VEB Rated Capacity 5 0 kW Class 6 0 kW Class Decoration Panel Model BYBS45DJW1 BYBS71DJW1 Color White White Dimensions H W D 55 800 500 55 1 100 500 Weight Mass kg 3 5 4 5 Airflow Rate H m min 16 0 18 0 L 11 0 15 0 Fan Type Sirocco Fan Sirocco Fan Motor Output W 140 350 Speed Steps 2 Steps 2...

Page 34: ... H W D mm 797 992 390 797 992 390 Weight Mass kg 49 49 Gross Weight Gross Mass kg 56 56 Sound Pressure Level dB A 46 47 46 47 Sound Power Level dB 59 60 59 60 Piping Connection Liquid mm φ 6 4 3 φ 6 4 3 Gas mm φ 9 5 3 φ 9 5 2 φ 12 7 1 Drain mm φ 18 0 φ 18 0 Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes No of Wiring Connection 3 for Power Supply 4 for Interunit Wiring 3 for Po...

Page 35: ...rent A 6 2 6 2 Dimensions H W D mm 735 936 300 735 936 300 Packaged Dimensions H W D mm 797 992 390 797 992 390 Weight Mass kg 58 58 Gross Weight Gross Mass kg 63 63 Sound Pressure Level dB A 48 49 48 49 Sound Power Level dB 61 61 Piping Connection Liquid mm φ 6 4 3 φ 6 4 4 Gas mm φ 9 5 1 φ 12 7 2 φ 9 5 2 φ 12 7 2 Drain mm φ 18 0 φ 18 0 Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas...

Page 36: ...0 770 900 320 Packaged Dimensions H W D mm 900 925 390 900 925 390 Weight Mass kg 72 73 Gross Weight Gross Mass kg 80 80 Sound Pressure Level dB A 48 49 52 52 Sound Power Level dB 60 66 Piping Connection Liquid mm φ 6 4 4 φ 6 4 5 Gas mm φ 9 5 1 φ 12 7 1 φ 15 9 2 φ 9 5 2 φ 12 7 1 φ 15 9 2 Drain mm φ 25 0 φ 25 0 Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes No of Wiring Connect...

Page 37: ...iquid mm φ 6 4 φ 6 4 Gas mm φ 9 5 φ 9 5 Drain mm φ 16 0 or φ 18 0 φ 16 0 or φ 18 0 Drawing No 3D066165A 3D066436A Model FTXG35JV1BW FTXG35JV1BA Cooling Heating Cooling Heating Rated Capacity 3 5 kW Class 3 5 kW Class Front Panel Color White Silver Airflow Rate H m min cfm 10 1 357 10 8 381 10 1 357 10 8 381 M 7 3 258 8 6 304 7 3 258 8 6 304 L 4 6 162 6 4 226 4 6 162 6 4 226 SL 3 9 138 5 6 198 3 9 ...

Page 38: ...onnection Liquid mm φ 6 4 φ 6 4 Gas mm φ 12 7 φ 12 7 Drain mm φ 18 0 φ 18 0 Drawing No 3D071585 3D072083A Model CTXS15K2V1B FTXS20K2V1B Cooling Heating Cooling Heating Rated Capacity 1 5 kW Class 2 0 kW Class Front Panel Color White White Airflow Rate H m min cfm 7 9 279 9 0 318 8 8 311 9 5 335 M 6 3 222 7 5 265 6 7 237 7 8 275 L 4 7 166 6 0 212 4 7 166 6 0 212 SL 3 9 138 4 3 152 3 9 138 4 3 152 F...

Page 39: ...ion Liquid mm φ 6 4 φ 6 4 Gas mm φ 9 5 φ 9 5 Drain mm φ 18 0 φ 18 0 Drawing No 3D074534 3D074535 Model FTXS25J2V1B FTXS35J2V1B Cooling Heating Cooling Heating Rated Capacity 2 5 kW Class 3 5 kW Class Front Panel Color White White Airflow Rate H m min cfm 10 8 381 11 9 420 11 4 403 12 4 438 M 7 9 279 9 1 321 8 7 307 9 5 335 L 5 2 184 6 4 226 5 8 205 6 8 240 SL 3 7 131 5 9 208 4 4 155 6 0 212 Fan Ty...

Page 40: ... mm φ 6 4 φ 6 4 Gas mm φ 9 5 φ 12 7 Drain mm φ 18 0 φ 18 0 Drawing No 3D070567A 3D070568A Model FTXS60GV1B FTXS71GV1B Cooling Heating Cooling Heating Rated Capacity 6 0 kW Class 7 1 kW Class Front Panel Color White White Airflow Rate H m min cfm 16 0 565 17 2 607 17 2 607 19 5 689 M 13 5 477 14 9 526 14 5 512 16 7 590 L 11 3 399 12 6 445 11 5 406 14 2 501 SL 10 1 357 11 3 399 10 5 371 12 6 445 Fan...

Page 41: ...Gross Mass kg 28 28 Sound Pressure Level H M L SL dB A 38 32 26 23 39 32 26 22 39 33 27 24 40 33 27 23 Sound Power Level dB 54 55 55 56 Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes Piping Connection Liquid mm φ 6 4 φ 6 4 Gas mm φ 9 5 φ 9 5 Drain mm φ 18 0 φ 18 0 Drawing No 3D071592 3D071593 Model FVXG50K2V1B Cooling Heating Rated Capacity 5 0 kW Class Front Panel Color White...

Page 42: ...ss kg 18 18 Sound Pressure Level H M L SL dB A 38 32 26 23 38 32 26 23 39 33 27 24 39 33 27 24 Sound Power Level dB 54 54 55 55 Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes Piping Connection Liquid mm φ 6 4 φ 6 4 Gas mm φ 9 5 φ 9 5 Drain mm φ 20 0 φ 20 0 Drawing No 3D071661 3D071662 Model FVXS50FV1B Cooling Heating Rated Capacity 5 0 kW Class Front Panel Color White Airflow ...

Page 43: ...id and Gas Pipes Both Liquid and Gas Pipes Piping Connection Liquid mm φ 6 4 φ 6 4 Gas mm φ 9 5 φ 9 5 Drain mm φ 18 0 φ 18 0 Drawing No 3D059564 3D059567 Model FLXS50BAVMB FLXS60BAVMB Cooling Heating Cooling Heating Rated Capacity 5 0 kW Class 6 0 kW Class Front Panel Color Almond White Almond White Airflow Rate H m min cfm 11 4 403 12 1 427 12 0 424 12 8 452 M 10 0 353 9 8 346 10 7 378 10 6 374 L...

Page 44: ... φ 9 5 Drain mm VP20 O D φ 26 I D φ 20 VP20 O D φ 26 I D φ 20 Drawing No 3D060029 3D060030 Model FDXS50C7VMB FDXS60C7VMB Cooling Heating Cooling Heating Rated Capacity 5 0 kW Class 6 0 kW Class Airflow Rate H m min cfm 12 0 424 12 0 424 16 0 565 16 0 565 M 11 0 388 11 0 388 14 8 523 14 8 523 L 10 0 353 10 0 353 13 5 477 13 5 477 SL 8 4 297 8 4 297 11 2 395 11 2 395 Fan Type Sirocco Fan Sirocco Fan...

Page 45: ...und Power Level H dB 49 49 Heat Insulation Foamed polystyrene Foamed polyethylene Foamed polystyrene Foamed polyethylene Piping Connection Liquid mm φ 6 35 Flare φ 6 35 Flare Gas mm φ 9 52 Flare φ 12 7 Flare Drain mm VP25 O D φ 32 I D φ 25 VP25 O D φ 32 I D φ 25 Drawing No 3D076994 3D076994 Model FCQG60FVEB Cooling Heating Rated Capacity 6 0 kW Class Decoration Panel Model BYCQ140D7W1 BYCQ140D7W1W...

Page 46: ...4 Gas mm φ 9 5 φ 9 5 Drain mm VP20 O D φ 26 I D φ 20 VP20 O D φ 26 I D φ 20 Drawing No 3D060405 3D060407 Model FFQ50B9V1B FFQ60B9V1B Cooling Heating Cooling Heating Rated Capacity 5 0 kW Class 6 0 kW Class Decoration Panel Model BYFQ60B8W1 BYFQ60B8W1 Color White White Dimensions H W D mm 55 700 700 55 700 700 Weight Mass kg 2 7 2 7 Airflow Rate H m min cfm 12 0 424 12 0 424 15 0 530 15 0 530 L 8 0...

Page 47: ...H L dB A 37 32 38 33 Sound Power Level dB 53 54 Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes Piping Connection Liquid mm φ 6 4 φ 6 4 Gas mm φ 9 5 φ 12 7 Drain mm VP20 O D φ 26 I D φ 20 VP20 O D φ 26 I D φ 20 Drawing No 3D075705 3D075706 Model FHQ60BWV1B Cooling Heating Rated Capacity 6 0 kW Class Panel Color White Airflow Rate H m min 17 0 600 16 0 565 L 13 0 459 13 0 459 Fa...

Page 48: ...φ 6 35 φ 6 35 Flare Gas mm φ 9 52 φ 9 52 Flare Drain mm O D φ 27 2 VP25 O D φ 32 I D φ 25 Model FBQ50C8VEB FBQ60C8VEB Cooling Heating Cooling Heating Rated Capacity 5 0 kW Class 6 0 kW Class Decoration Panel Model BYBS45DJW1 BYBS71DJW1 Color White White Dimensions H W D 55 800 500 55 1 100 500 Weight Mass kg 3 5 4 5 Airflow Rate H m min 16 0 18 0 L 11 0 15 0 Fan Type Sirocco Fan Sirocco Fan Motor ...

Page 49: ...S20 25K2V1B CTXS15 35K2V1B 44 2 3 FTXS25 35 42 50J2V1B 46 2 4 FTXS60 71GV1B 49 2 5 FVXG25 35 50K2V1B 52 2 6 FVXS25 35 50FV1B 55 2 7 FLXS25 35 50 60BAVMB 57 2 8 FDXS25 35E7VMB FDXS50 60C7VMB 59 2 9 FCQG35 50 60FVEB 61 2 10 FFQ25 35 50 60B9V1B 64 2 11 FHQ35 50 60BWV1B 66 2 12 FDBQ25B8V1 68 2 13 FBQ35 50 60C8VEB 70 3 Wired Remote Controller 73 3 1 BRC1D528 73 3 2 BRC1E52A7 BRC1E52B7 74 ...

Page 50: ...1 S80 Connector for four way valve coil 12 S90 Connector for thermistors outdoor temperature outdoor heat exchanger discharge pipe temperature 13 S92 Connector for gas pipe thermistors 14 S93 Connector for liquid pipe thermistors 15 AC1 AC2 Connector for terminal board power supply 16 HR1 HR2 Connector for reactor 17 E1 E2 Connector for earth 18 U V W Connector for compressor 19 FU1 Fuse 30 A 250 ...

Page 51: ...2 58 class PCB 1 Main PCB 68 75 class V3 V11 AC1 FU2 HR1 HR2 FU3 2P165232 2 2P165232 4 S40 S20 S70 S90 S93 S92 S23 S21 S22 S51 S10 AC2 S15 S101 V5 S80 V6 V2 FU1 E1 E2 W V U V3 AC1 E1 E2 FU2 HR1 V100 HR2 FU3 3P194316 1 3P194316 2 S40 S90 S92 S20 S21 S22 S70 S23 S93 S51 W V U S15 AC2 S101 S10 V5 S80 V9 V2 FU1 ...

Page 52: ...oom model PCB 2 Service Monitor PCB for 5 room model V3 AC1 E1 E2 FU2 V100 FU3 S40 S20 S21 S22 S23 S70 S90 S92 S93 S51 W V U S15 AC2 S101 S10 V5 S80 V9 V2 S24 FU1 2P171491 1 2P171491 2 HR1 white HR2 blue SW2 LED4 LED3 LED1 LED2 LED A S52 S102 SW4 SW3 SW1 SW5 3P165332 1 SW2 LED4 LED3 LED5 LED1 LED2 LED A S52 S102 SW4 SW3 SW1 SW5 3P173588 1 ...

Page 53: ... limit switch 6 S46 Connector for signal receiver display PCB 7 S200 Connector for fan motor 8 H1 H2 H3 FG Connector for terminal board 9 JB Fan speed setting when compressor stops for thermostat OFF JC Power failure recovery function auto restart Refer to page 418 for detail 10 LED A LED for service monitor green 11 F1U Fuse 3 15 A 250 V 12 V1 Varistor 1 S51 Connector for control PCB 2 S52 Connec...

Page 54: ...Indoor Unit SiBE121135 42 Printed Circuit Board Connector Wiring Diagram PCB Detail A1P Control PCB S42 S41 S32 JB JC S200 H3 H2 FG S46 S21 S25 LED A V1 F1U H1 2P254830 1 ...

Page 55: ...SiBE121135 Indoor Unit Printed Circuit Board Connector Wiring Diagram 43 A3P INTELLIGENT EYE Sensor PCB A2P Signal Receiver Display PCB S52 S51 S1W JA H2P H1P 3P254832 1 S36 3P255914 1 ...

Page 56: ...G1 FG2 Connector for terminal board frame ground 8 H1 H2 H3 Connector for terminal board indoor outdoor transmission 9 V1 Varistor 10 JA Address setting jumper Refer to page 415 for detail 11 JB Fan speed setting when compressor stops for thermostat OFF JC Power failure recovery function auto restart Refer to page 418 for detail 12 LED A LED for service monitor green 13 FU1 F1U Fuse 3 15 A 250 V 1...

Page 57: ...onnector Wiring Diagram 45 PCB Detail PCB 1 Control PCB PCB 3 INTELLIGENT EYE Sensor PCB PCB 2 Display PCB FU1 FG1 FG2 LED A S200 2P297453 1 S32 S26 S6 JA JC JB S25 S403 H2 H3 H1 V1 S27 SW1 Solder side LED2 LED3 LED1 RTH1 3P185701 3 S36 3P296737 1 ...

Page 58: ...S47 Connector for signal receiver PCB 8 H1 H2 H3 FG Connector for terminal board 9 JA Address setting jumper Refer to page 415 for detail 10 JB Fan speed setting when compressor stops for thermostat OFF JC Power failure recovery function auto restart Refer to page 418 for detail 11 LED A LED for service monitor green 12 FU1 F1U Fuse 3 15 A 250 V 13 V1 Varistor 1 S48 Connector for control PCB 1 S49...

Page 59: ...SiBE121135 Indoor Unit Printed Circuit Board Connector Wiring Diagram 47 PCB Detail PCB 1 Control PCB V1 FU1 S1 S41 S21 S47 JB JA JC S46 S25 LED A S32 FG H1 H2 H3 2P206687 1 ...

Page 60: ...nit SiBE121135 48 Printed Circuit Board Connector Wiring Diagram PCB 2 Signal Receiver PCB PCB 3 Display PCB PCB 4 INTELLIGENT EYE Sensor PCB 3P210728 1 S48 3P210728 1 RTH1 SW1 LED3 LED2 LED1 S49 3EB86013 1 S26 ...

Page 61: ... 7 S47 Connector for signal receiver PCB 8 H1 H2 H3 FG Connector for terminal board 9 V1 Varistor 10 JA Address setting jumper Refer to page 415 for detail 11 JB Fan speed setting when compressor stops for thermostat OFF JC Power failure recovery function auto restart Refer to page 418 for detail 12 LED A LED for service monitor green 13 FU1 F1U Fuse 3 15 A 250 V 1 S48 Connector for control PCB 1 ...

Page 62: ...Indoor Unit SiBE121135 50 Printed Circuit Board Connector Wiring Diagram PCB Detail PCB 1 Control PCB 2P227881 2 V1 H1 H2 H3 LED A S32 S1 S41 S46 S25 S47 S21 JB JA JC FG FU1 3 15A ...

Page 63: ...35 Indoor Unit Printed Circuit Board Connector Wiring Diagram 51 PCB 2 Signal Receiver PCB PCB 3 Display PCB PCB 4 INTELLIGENT EYE Sensor PCB S48 3P247309 1 LED1 LED2 LED3 SW1 S49 RTH1 3P247309 1 S36 3P227885 1 ...

Page 64: ...hermistor 8 S33 Connector for room temperature thermistor 9 S34 Connector for radiant panel thermistors 10 S46 Connector for display PCB 11 FG Connector for earth 12 V1 Varistor 13 JB Fan speed setting when compressor stops for thermostat OFF JC Power failure recovery function Refer to page 418 for detail 14 F1U Fuse 3 15A 250V 15 LED A LED for service monitor green 1 S56 Connector for main PCB 2 ...

Page 65: ...SiBE121135 Indoor Unit Printed Circuit Board Connector Wiring Diagram 53 PCB Detail PCB 1 Main PCB S6 S30 S21 S32 S33 S34 S26 S46 FG LED A S1 V1 F1U S2 JB JC 2P273247 1 ...

Page 66: ...Indoor Unit SiBE121135 54 Printed Circuit Board Connector Wiring Diagram PCB 2 Display PCB PCB 3 Service PCB S56 S1W H3P H1P H2P 3P273252 1 S2W 1 S27 3P273254 1 ...

Page 67: ...or for sensor PCB 9 H1 H2 H3 Connector for terminal board 10 E1 Terminal for earth 11 V1 V2 Varistor 12 JA Address setting jumper Refer to page 415 for detail 13 JB Fan speed setting when compressor stops for thermostat OFF JC Power failure recovery function Refer to page 418 for detail 14 FU1 F1U Fuse 3 15A 250V 15 LED A LED for service monitor green 1 S27 Connector for control PCB 2 SW2 4 Switch...

Page 68: ... Diagram PCB Detail PCB 1 Sensor PCB PCB 2 Control PCB PCB 3 Service PCB PCB 4 Display PCB LED3 does not function S49 RTH2 3P191450 1 S1 LED A S21 S41 S42 S26 S46 S48 S32 JC JA JB V1 V2 H1 FU1 2P191446 1 H2 H3 E1 S27 SW4 SW2 4 3P191448 1 S47 SW1 LED2 LED1 3P191447 1 ...

Page 69: ...ess setting jumper Refer to page 415 for detail 9 JB Fan speed setting when compressor stops for thermostat OFF JC Power failure recovery function Refer to page 418 for detail 10 SW2 Select switch for installation ceiling or floor Refer to page 418 for detail 11 LED A LED for service monitor green 1 S36 Connector for control PCB 2 H1 H2 H3 Connector for terminal board 3 H4 H5 H6 Connector for AC f...

Page 70: ...Control PCB PCB 2 Power Supply PCB PCB 3 Display PCB PCB 4 Signal Receiver PCB SW2 S7 S6 S24 JC JB JA S37 S32 S26 S21 LED A 2P084352 3 S36 FU1 H2 H3 H4 H5 H6 H1 V1 2P084361 1 LED3 LED2 LED1 S25 2P084377 5 PHOTO 2P084377 SW1 S31 RTH PbF SW1 I RTH WLU 3 C1 C2 C3 EX511 REV 12 S27 S27 2P084377 5 ...

Page 71: ...Connector for terminal board 7 GND Connector for terminal board earth 8 JA Address setting jumper Refer to page 415 for detail 9 JB Fan speed setting when compressor stops for thermostat OFF JC Power failure recovery function auto restart Refer to page 418 for detail 10 LED A LED for service monitor green 11 FU1 F1U Fuse 3 15A 250V 12 V1 V1TR Varistor 1 S1 Connector for control PCB 2 SW1 S1W Force...

Page 72: ...t SiBE121135 60 Printed Circuit Board Connector Wiring Diagram PCB Detail PCB 1 Control PCB PCB 2 Display PCB S1 H2 S7 S26 S32 JC JB JA S21 2P131149 1 LED A FU1 H1 H3 V1 GND S1 LED3 LED2 LED1 SW1 2P084375 1 RTH1 ...

Page 73: ... for inter unit wiring 7 X30A Connector for terminal board for wired remote controller 8 X33A Connector for wiring adaptor PCB option 9 X35A Connector for group control adaptor option 10 X36A Connector for self cleaning decoration panel option 11 X65A X70A Connector for A2P 12 HAP LED for service monitor green 13 SS1 Selector switch for emergency 1 X1A X7A Connector for A1P 2 X2A Connector for sen...

Page 74: ...Indoor Unit SiBE121135 62 Printed Circuit Board Connector Wiring Diagram PCB Detail A1P X27A X65A X20A SS1 2P263068 4 X30A X70A X24A X15A X18A X16A X36A X17A HAP X33A X35A ...

Page 75: ...SiBE121135 Indoor Unit Printed Circuit Board Connector Wiring Diagram 63 A2P A3P Humidity Sensor PCB X9A X2A X4A X10A X8A X7A X1A HAP 2P263045 1 Humidity sensor CN1 4EB86011 3 ...

Page 76: ...r room temperature thermistor 6 X20A Connector for fan motor 7 X24A Connector for signal receiver PCB when the wireless remote controller is used 8 X25A Connector for drain pump motor 9 X27A Connector for terminal board for inter unit wiring 10 X33A Connector for wiring adaptor PCB option 11 X35A Connector for group control adaptor option 12 X36A Connector for swing motor 13 X40A Connector for ON ...

Page 77: ...SiBE121135 Indoor Unit Printed Circuit Board Connector Wiring Diagram 65 PCB Detail A1P Control PCB X27A X11A X33A X10A X19A X60A X61A X5A X35A X24A HAP X15A X17A SS1 X40A X36A X18A X25A X20A 2P197080 6 ...

Page 78: ...r 6 X19A Connector for room temperature thermistor 7 X20A X26A Connector for fan motor 8 X24A Connector for signal receiver PCB when the wireless remote controller is used 9 X25A Connector for drain pump motor option 10 X27A Connector for terminal board for inter unit wiring 11 X29A Connector for swing motor 12 X33A Connector for wring adaptor PCB option 13 X35A Connector for group control adaptor...

Page 79: ...21135 Indoor Unit Printed Circuit Board Connector Wiring Diagram 67 PCB Detail A1P Control PCB 2P197075 6 X19A X18A X40A X15A X14A X61A X33A X20A X11A X27A X17A X35A X60A X5A X10A HAP X24A X26A X25A X29A SS1 ...

Page 80: ...ger thermistor 4 X18A Connector for liquid pipe thermistor 5 X19A Connector for room temperature thermistor 6 X21A Connector for fan motor 7 X27A Connector for terminal board for inter unit wiring 8 X33A Connector for wiring adaptor PCB option 9 X35A Connector for group control adaptor option 10 X40A Connector for ON OFF input from outside option 11 X60A X61A Connector for interface adaptor option...

Page 81: ...SiBE121135 Indoor Unit Printed Circuit Board Connector Wiring Diagram 69 PCB Detail A1P Control PCB X27A X11A X33A X61A X18A X19A X17A X21A X40A X5A X10A X35A X60A SS1 HAP 2P095008 8 ...

Page 82: ...rminal board for wired remote controller 9 X33A Connector for wiring adaptor PCB option 10 X35A Connector for group control adaptor option 11 X70A Connector for fan PCB 12 X85A Connector for multi zoning option 13 HAP LED for service monitor green 14 SS1 Selector switch for emergency 1 X3A Connector for control PCB 2 X6A Connector for reactor 3 X8A Connector for fan motor 4 X10A Connector for term...

Page 83: ...SiBE121135 Indoor Unit Printed Circuit Board Connector Wiring Diagram 71 PCB Detail A1P Control PCB X17A X70A X85A SS1 X18A X15A X30A X16A HAP X33A X35A X27A X28A X25A 2P202878 7 ...

Page 84: ... Unit SiBE121135 72 Printed Circuit Board Connector Wiring Diagram A2P Fan PCB for FBQ35 50C8VEB A2P Fan PCB for FBQ60C8VEB F4U X10A X3A X8A F2U HAP X6A 2P207230 1 F3U X6A X10A X9A X1A X2A X3A HAP 2P210642 2 ...

Page 85: ...d Connector Wiring Diagram 73 3 Wired Remote Controller 3 1 BRC1D528 Connectors and Other Parts PCB Detail 1 P1 P2 Terminal for indoor unit 2 R1T Room temperature thermistor 3 SS1 MAIN SUB setting switch Refer to page 422 for detail R1T P2 P1 SS1 2P113638 2 ...

Page 86: ...r SiBE121135 74 Printed Circuit Board Connector Wiring Diagram 3 2 BRC1E52A7 BRC1E52B7 Connectors and Other Parts PCB Detail 1 P1 P2 Terminal for indoor unit 2 R1T Room temperature thermistor P2 P1 R1T 2P298037 1 2P298037 2 ...

Page 87: ...ulti Colored Indicator Lamp TIMER Lamp 95 1 17 Other Functions 97 2 Indoor Unit Control SA Models 99 2 1 Drain Pump Control 99 2 2 Thermostat Sensor in Remote Controller 101 2 3 Freeze Prevention Control 103 2 4 Hot Start Control In Heating Operation Only 104 3 Function of Thermistor 105 4 Control Specification 107 4 1 Mode Hierarchy 107 4 2 Frequency Control 108 4 3 Controls at Mode Changing Star...

Page 88: ...he frequency of the compressor is controlled by the following 2 parameters The load condition of the operating indoor unit The difference between the room thermistor temperature and the target temperature Additional Control Parameters The target frequency is adapted by additional parameters in the following cases Frequency restrictions Initial settings Forced cooling operation Inverter Principle T...

Page 89: ...ng and cooling Once the set temperature is reached the energy saving operation enables to maintain the room temperature at low power Frequency Limits The following functions regulate the minimum and maximum frequency Forced Operation Refer to page 405 for detail Refrigerant circulation rate high high f low f freq variable Refrigerant circulation rate low high speed low speed R2812 Amount of heat e...

Page 90: ...e fan banned area Control Flow Timing Chart 1 Opening the front panel fully Start Running 2 Output of the D signal after the front panel starts moving 4 Making the fan rotate when the flap passes over the fan banned area 3 Opening the flap fully R14049 Fully close OFF Start ON Flap Under running control Under operation mode control Under operation mode control Fan D Fully open Fully open Fully clo...

Page 91: ...de Angle Louvers The louvers made of elastic synthetic resin provide a wide range of airflow that guarantees comfortable air distribution Auto Swing The following table explains the auto swing process for cooling dry heating and fan Wall Mounted Type Floor Standing Type FVXG Series The swinging range of the flap is the same in any operation mode Series Vertical Swing up and down Horizontal Swing r...

Page 92: ...w becomes 3 D airflow The horizontal and vertical swing motion is altered and the airflow direction changes in the order shown in the following diagram 1 The vertical blades louvers move from the right to the left 2 The horizontal blades flaps move downward 3 The vertical blades louvers move from the left to the right 4 The horizontal blades flaps move upward Vertical Swing up and down Cooling Dry...

Page 93: ...on and Control 81 COMFORT AIRFLOW Operation Wall Mounted Type The vertical swing flap is controlled not to blow the air directly at the people in the room Cooling Dry Heating R11665 R12181 A B FTXG 5 75 FTXS K CTXS K 0 50 FTXS J 8 80 FTXS G 5 55 A B ...

Page 94: ...d Type Floor Standing Type The upper limit is M tap in 30 minutes from the operation start Floor Ceiling Suspended Dual Type Duct Connected Type Heating In heating operation the fan speed is regulated according to the indoor heat exchanger temperature and the difference between the room thermistor temperature and the target temperature Note 1 During POWERFUL operation the fan rotates at H tap 40 9...

Page 95: ...l starts and adjusts the opening of the indoor electronic expansion valve to achieve the target panel temperature The panel temperature is categorized into stop dropping keep up and return zones The target panel temperature is 55 C at maximum but it may be lower depending on the condition Operation Stop Control In case operation stops during RADIANT operation including thermostat off In case any o...

Page 96: ...perature Set temperature Rotation speed of indoor unit fan Note The only difference between RADIANT 1 and RADIANT 2 is the movement of the indoor unit fan In RADIANT 1 the rotation speed of the indoor unit fan is controlled depending on the difference between the set temperature and the room temperature In RADIANT 2 the rotation speed of the indoor unit fan is constant R14637 Function RADIANT 1 RA...

Page 97: ...rmistor temperature at start up and the target temperature is divided into two zones Then the unit operates an appropriate capacity for each zone to maintain the temperature and humidity at a comfortable level Room thermistor temperature at start up Target temperature X Thermostat OFF point Y Thermostat ON point Z 24 C or more Room thermistor temperature at start up X 2 5 C X 0 5 C or Y 0 5 C zone...

Page 98: ...on mode switching point are as follows Tr means the room thermistor temperature 1 Heating Cooling switching point Tr Tt 3 0 C FTXG FTXS G FVXG series Tr Tt 2 5 C other models 2 Cooling Heating switching point Tr Tt 2 5 C 3 Thermostat ON OFF point is the same as the ON OFF point of cooling or heating operation 4 During initial operation Tr Ts Cooling operation Tr Ts Heating operation FTXG FTXS G FV...

Page 99: ...s from defrost control in any zones except A The operation turns on in any zones except A The monitoring time has passed while the temperature difference is in the zone B Cooling Dry 10 minutes Heating Radiant 10 seconds Cooling Dry Wall Mounted Type Floor Standing Type Floor Ceiling Suspended Dual Type Duct Connected Type B A OFF ON C Room thermistor temperature target temperature 1 5 C R12319 Co...

Page 100: ...ies Floor Standing Type FVXS series Floor Ceiling Suspended Dual Type Duct Connected Type Refer to Temperature Control on page 76 for detail OFF ON B A C 1 5 C 2 0 C 0 5 C Room thermistor temperature target temperature R11894 B A OFF ON C 1 5 C 1 0 C Room thermistor temperature target temperature 0 C R12320 B A OFF ON C 1 5 C 0 5 C 1 0 C Room thermistor temperature target temperature R12392 ...

Page 101: ... raises the target temperature slightly in the case of cooling or lowers it slightly in the case of heating This prevents excessive cooling in summer and excessive heating in winter to ensure comfortable sleeping conditions and also conserves electricity Cooling Ex Wall Mounted Type Floor Standing Type Heating Radiant R10870 TIMER operation NIGHT SET Circuit ON Target temperature 0 5 C temperature...

Page 102: ...ctivated from the wireless remote controller by pushing the ECONO button When this function is activated the maximum capacity also decreases ECONO operation can only be set when the unit is running Pressing the ON OFF button on the remote controller cancels the function ECONO operation is available when the unit is in AUTO COOL DRY or HEAT operation and not available in RADIANT or FAN operation EC...

Page 103: ...epresenting HOME LEAVE is indicated on the display of the remote controller The indoor unit is operated according to the set temperature and airflow rate for HOME LEAVE which were pre set in the memory of the remote controller The LED red of indoor unit representing HOME LEAVE lights up It goes out when the operation is stopped 3 End of Function The function ends when the HOME LEAVE button is pres...

Page 104: ...s the motion signal is ON 2 The motions for example in cooling When the microcomputer does not have a signal from the sensor in 20 minutes it judges that nobody is in the room and operates the unit at a temperature shifted from the target temperature Cooling Dry 1 2 C higher Heating 2 C lower Auto according to the operation mode at that time In FAN operation the fan speed is reduced by 60 rpm Othe...

Page 105: ...t The microcomputer in the indoor unit carries out a sampling every 20 msec and if it detects 10 cycles of the wave in one second in total corresponding to 20 msec 10 200 msec and when the ON signal continues 3 sec it judges human is in the room as the motion signal is ON 2 area INTELLIGENT EYE sensor is divided into 2 areas and detects humans in each area Image of 2 area INTELLIGENT EYE 1 sec sam...

Page 106: ...A and B Shift the airflow direction to area B left side 2 Detection signal ON in area A Shift the airflow direction to area B left side 3 Detection signal ON in area B Shift the airflow direction to area A right side 4 Detection signal OFF in both area A and B No change When the detection signal is OFF for 20 minutes in both area A and B the unit starts energy saving operation Others For dry opera...

Page 107: ...nted Type FTXG Series Current operation mode is displayed in color of the lamp of the indoor unit Operating status can be monitored even in automatic operation in accordance with the actual operation mode The lamp color changes according to the operation AUTO Red Blue DRY Green COOL Blue HEAT Red FAN White TIMER Orange Operation mode Fan speed Target temperature COOL H tap A rpm 18 C DRY Dry rotat...

Page 108: ... time 5C is displayed on the LCD 2 Select L light with the Temp or button 3 Press the Mode button to enter the brightness setting mode 4 Press the Temp or button to adjust the brightness of the multi colored indicator lamp 5 Press the Mode button for 5 seconds to exit from the brightness setting mode When the remote controller is left untouched for 60 seconds it returns to the normal mode also R11...

Page 109: ...tivate with the ON OFF button Ex Wall mounted type FTXS J series Note When the ON OFF button is pressed for 10 seconds or more the forced operation is stopped 1 17 4 Titanium Apatite Photocatalytic Air Purifying Filter This filter combines the Air Purifying Filter and Titanium Apatite Photocatalytic Deodorizing Filter as a single highly effective filter The filter traps microscopic particles decom...

Page 110: ...ated 1 17 8 WEEKLY TIMER Operation Up to 4 timer settings can be saved for each day of the week up to 28 settings in total Those 3 items of ON OFF temperature and time can be set Refer to WEEKLY TIMER Operation on page 167 208 for detail 1 17 9 Brightness Setting of the Indoor Unit Display Floor Standing Type FVXG Series Each time you press the Brightness button on the remote controller the bright...

Page 111: ...ing thermostat is ON 2 1 2 When the Float Switch is Tripped While the Cooling Thermostat is OFF 3 Malfunction residual The remote controller displays A3 and the air conditioner comes to an abnormal stop if the float switch is turned OFF and not turned ON again within 5 minutes while the cooling thermostat is OFF Float switch The remote controller displays A3 and the indoor unit stops 2 Malfunction...

Page 112: ...red AF is then displayed as operation continues 5 Malfunction residual The remote controller displays A3 and the air conditioner comes to an abnormal stop if the float switch is OFF for more than 5 minutes in the case of 4 The remote controller displays A3 and the indoor unit stops Reset Thermostat running Humidifier Float switch Drain pump ON ON ON ON OFF OFF OFF OFF R16094 5 min 5 min 5 sec The ...

Page 113: ...30 C A F This example also assumes there are several other air conditioners and the suction temperature changes even when the thermostat sensor is off Body thermostat sensor is used for temperatures from 18 C to 23 C A C Remote controller thermostat sensor is used for temperatures from 23 C to 27 C C E Body thermostat sensor is used for temperatures from 27 C to 30 C E F Assuming suction temperatu...

Page 114: ...s 24 C and the suction temperature has changed from 18 C to 28 C A D This example also assumes there are several other air conditioners and the suction temperature changes even when the thermostat sensor is off Body thermostat sensor is used for temperatures from 18 C to 25 C A C Remote controller thermostat sensor is used for temperatures from 25 C to 28 C C D Assuming suction temperature has cha...

Page 115: ...ce with the following conditions and is also set in accordance with the conditions given below Conditions for starting Temperature is 1 C or less for total of 40 min or temperature is 5 C or less for total of 10 min Conditions for cancelling Temperature is 7 C or more for 10 min continuously Ex Case where temperature is 5 C or less for total of 10 min Freeze prevention control Normal operation For...

Page 116: ...city Detail TH2 Temperature C detected with the gas thermistor TC High pressure equivalent saturated temperature Defrost ending or oil return ending or Thermostat ON The fan is not OFF before initiating the hot start LL The fan is OFF before initiating the hot start OFF Hot start control Hot start in progress Normal operation Normal operation H L remote controller setting LL OFF Remote controller ...

Page 117: ...ctronic expansion valve opening so that the target discharge pipe temperature can be obtained 2 In cooling operation the outdoor heat exchanger thermistor is used for detecting the disconnection of the discharge pipe thermistor When the discharge pipe temperature becomes lower than the outdoor heat exchanger temperature the discharge pipe thermistor is judged as disconnected 3 In cooling operation...

Page 118: ...ration halts 5 In heating operation the indoor heat exchanger thermistor is used for detecting the disconnection of the discharge pipe thermistor When the discharge pipe temperature becomes lower than the maximum indoor heat exchanger temperature the discharge pipe thermistor is judged as disconnected 6 When only one indoor unit is operating the indoor heat exchanger thermistor is used for subcool...

Page 119: ...t by each room in accordance with the procedure and determines the operation mode of the system The following procedure is taken when the modes conflict with each other 1 The system follows the mode which is set first First push first set 2 For the rooms where the different mode is set standby mode is activated The operation lamp blinks R14428 Air conditioner control mode Forced operation mode For...

Page 120: ...termine upper limit frequency The minimum value is set as the upper limit frequency among the frequency upper limits of the following functions Compressor protection input current discharge pipe temperature low Hz high pressure limit freeze up protection 3 Determine lower limit frequency The maximum value is set as lower limit frequency among the frequency lower limits of the following functions D...

Page 121: ...quency Indoor Frequency Command D signal The difference between a room thermistor temperature and the target temperature is taken as the D signal and is used for frequency command Values depend on the type of indoor unit Th OFF Thermostat OFF Indoor Unit Capacity S value The capacity of the indoor unit is a S value and is used for frequency command Frequency Initial Setting Outline When starting t...

Page 122: ...uency increasing range When the difference between input current and input current dropping value is less than 1 5 A the frequency increasing range must be limited 4 Frequency management when other controls are functioning When each frequency is dropping Frequency management is carried out only when the frequency drops For limiting lower limit Frequency management is carried out only when the freq...

Page 123: ... way valve is carried out Detail OFF delay switch of four way valve The four way valve coil is energized for 150 seconds after the operation is stopped 4 3 3 Four Way Valve Operation Compensation Outline At the beginning of the operation as the four way valve is switched the pressure difference to activate the four way valve is acquired by having output frequency which is more than a certain fixed...

Page 124: ... to keep the discharge pipe temperature from rising further Detail 40 50 52 58 class 68 75 80 90 class A Hz 55 55 B Hz 70 65 C Hz 85 80 D seconds 150 240 120 E seconds 180 200 F seconds 300 470 A D E F B C R13528 Hz Frequency sec Time Zone Control Stop zone When the temperature reaches the stop zone the compressor stops Dropping zone The upper limit of frequency decreases Keep zone The upper limit...

Page 125: ...t maximum frequency goes on Reset zone Limit of the frequency is canceled Limitation of current dropping and stop value according to the outdoor temperature The current drops when outdoor temperature becomes higher than a certain level depending on the model 4 6 Freeze up Protection Control Outline During cooling operation the signals sent from the indoor unit control the operating frequency limit...

Page 126: ... changed The maximum value of the indoor heat exchanger temperature controls the following excluding stopped rooms Zone Control Stop zone When the temperature reaches the stop zone the compressor stops Dropping zone The upper limit of frequency decreases Keep zone The upper limit of frequency is kept Up zone The upper limit of frequency increases Reset zone The upper limit of frequency is canceled...

Page 127: ...en the outdoor temperature is more than 10 C the fan is turned off for 30 seconds 6 Fan speed control during forced operation The outdoor fan is controlled as well as normal operation during the forced operation 7 Fan speed control during POWERFUL operation The rotation speed of the outdoor fan is increased during the POWERFUL operation 8 Fan speed control during indoor outdoor unit quiet operatio...

Page 128: ...re than 38 minutes of accumulated time pass after the start of the operation or ending the previous defrosting Conditions for Canceling Defrost The target heat exchanger temperature as the canceling condition is selected in the range of 4 12 C according to the outdoor temperature Frequency Compressor Four way valve Fan ON OFF ON OFF ON OFF 0 Hz A Hz 5 sec 400 pulse 350 pulse 450 pulse Initial open...

Page 129: ...l control 2 SC subcooling control 3 Liquid pipe temperature control with all ports connected and all rooms being air conditioned 4 Liquid pipe temperature control for stopped rooms 5 Dew prevention control for indoor rotor Open Control 1 Outdoor electronic expansion valve control when starting operation 2 Outdoor electronic expansion valve control when the frequency changes 3 Outdoor electronic ex...

Page 130: ... of target discharge pipe temperature Control when the operating room is changed Control of target discharge pipe temperature Defrost control Pressure equalizing control Open control when starting Continue Pressure equalizing control Operation pattern R16007 When power is turned on Cooling 1 room operation Cooling 2 rooms operation to Cooling 4 rooms operation Stop Heating 1 room operation Heating...

Page 131: ...door electronic expansion valve opening is controlled when the operation starts and prevents superheating or liquid compression 4 12 5 Control when the Frequency Changes When the target discharge pipe temperature control is active if the target frequency is changed to a specified value in a certain time period the target discharge pipe temperature control is canceled and the target opening of the ...

Page 132: ...thermistor is disconnected When the disconnection is ascertained the compressor continues operation for 9 minutes and then stops If the compressor stops repeatedly the system is shut down 4 12 9 Gas Pipe Isothermal Control During Cooling When the units are operating in multiple rooms the gas pipe temperature is detected and the outdoor electronic expansion valve opening is adjusted so that the tem...

Page 133: ...ipe temperature The outdoor electronic expansion valve opening and the target discharge pipe temperature are adjusted every 20 seconds The target discharge pipe temperature is controlled by indoor heat exchanger temperature and outdoor heat exchanger temperature The opening degree of the outdoor electronic expansion valve is controlled by the followings Target discharge pipe temperature Actual dis...

Page 134: ...own the compressor If the OL compressor head temperature exceeds 120 130 C the compressor stops 4 13 3 Refrigerant Shortage Control Outline I Detecting by power consumption If the power consumption is below the specified value and the frequency is higher than the specified frequency it is regarded as refrigerant shortage The power consumption is low comparing with that in the normal operation when...

Page 135: ...n the operation stopped room becomes below the specified temperature for the specified time the outdoor electronic expansion valve is opened in the operation stopped room as specified and the fully closed operation is carried out After this if freezing abnormality occurs more than specified time the system shuts down as the system abnormality ...

Page 136: ... Operation Manual 1 System Configuration 125 2 RA Indoor Unit 126 2 1 FTXG FTXS K CTXS FVXG Series ARC466A1 A2 A6 126 2 2 FTXS J FTXS G FVXS Series ARC452A1 A3 178 2 3 FLXS FDXS Series ARC433B67 B69 218 3 SA Indoor Unit 233 3 1 BRC1D528 233 ...

Page 137: ...ll and how to use it efficiently Providing instructions to the user can reduce requests for servicing by 80 However proficient the installation and operating functions of the air conditioning system are the customer may fault either the room air conditioner or its installation work when it is actually due to improper handling The installation work and the handing over of the unit can only be consi...

Page 138: ...Parts 127 131 135 Preparation before Operation 139 2 139 2 139 Operation AUTO DRY COOL HEAT FAN Operation 141 143 145 RADIANT Operation 146 Temperature Setting 147 Adjusting the Airflow Direction and Rate 148 150 152 COMFORT AIRFLOW Operation 154 1 154 INTELLIGENT EYE Operation 155 1 155 POWERFUL Operation 157 1 157 158 OUTDOOR UNIT QUIET Operation 159 2 159 2 159 ECONO Operation 160 2 160 2 160 O...

Page 139: ...l receiver Sound type beep beep beep long beep Indoor unit ON OFF switch Press this switch once to start operation Press once again to stop it The operation mode refer to the following table Temperature setting 25 C Airflow rate AUTO This switch is useful when the remote controller is missing Orange Orange Orange Orange Orange TIMER lamp colour TIMER lamp colour For COOL TIMER lamp When operation ...

Page 140: ...RA Indoor Unit SiBE121135 128 Operation Manual Open the front panel Panel support plate Air filter Titanium apatite photocatalytic air purifying filter ...

Page 141: ...t there are no obstacles within 50cm under the signal receiver Such obstacles if any may have an adverse influence on the reception performance of the receiver and the reception distance may be shortened It selects the airflow rate setting FAN setting button POWERFUL operation POWERFUL button Model ARC466A1 Open the front cover Front cover Press this button once to start operation Press once again...

Page 142: ...WEEKLY TIMER operation TIMER CANCEL button It changes the ON OFF TIMER and WEEKLY TIMER settings SELECT button CLOCK button ON TIMER button WEEKLY TIMER operation INTELLIGENT EYE operation INTELLIGENT EYE button Adjusting the airflow direction SWING button ECONO operation ECONO button It selects the operation mode AUTO DRY COOL HEAT FAN MODE selector button WEEKLY button PROGRAM button COPY button...

Page 143: ...s once again to stop it The operation mode refers to the following table OPERATION lamp green TIMER lamp yellow INTELLIGENT EYE lamp green This switch is useful when the remote controller is missing Room temperature sensor It detects the air temperature around the unit INTELLIGENT EYE sensor It detects the movements of people and automatically switches between normal operation and energy saving op...

Page 144: ...RA Indoor Unit SiBE121135 132 Operation Manual Open the front panel Air filter Titanium apatite photocatalytic air purifying filter ...

Page 145: ...s between the unit and the remote controller such as a curtain the unit will not operate Do not drop the remote controller Do not get it wet The maximum distance for communication is approx 7m It selects the airflow rate setting POWERFUL operation It displays the current settings In this illustration each section is shown with its displays on for the purpose of explanation It changes the temperatu...

Page 146: ...ER button CLOCK button OUTDOOR UNIT QUIET operation COMFORT AIRFLOW operation It cancels the timer setting It cannot be used for the WEEKLY TIMER operation It changes the ON OFF TIMER and WEEKLY TIMER settings It selects the operation mode AUTO DRY COOL HEAT FAN ECONO operation Adjusting the airflow direction INTELLIGENT EYE operation WEEKLY TIMER operation WEEKLY button PROGRAM button COPY button...

Page 147: ... receiver Sound type beep beep beep long beep Indoor unit ON OFF switch This switch is useful when the remote controller is missing Air inlet Mode AUTO Temperature setting 25 C Airflow rate AUTO Case Operation start Setting changed Operation stop Signal receiver and Indoor unit ON OFF switch It receives signals from the remote controller When the unit receives a signal you will hear a beep sound P...

Page 148: ...r It is inside of air filter lower The surface of the radiant panel becomes very hot during RADIANT operation Do not touch the panel of the main unit directly After the operation is complete do not remove or care and clean the panel until the surface temperature of the panel decreases Titanium apatite photocatalytic air purifying filter ...

Page 149: ...drop the remote controller Do not get it wet The maximum distance for communication is approximately 7m RADIANT switching button RADIANT operation FAN setting button It selects the airflow rate setting Front cover Open the front cover ON OFF button Press this button once to start operation Press once again to stop it TEMPERATURE adjustment buttons It changes the temperature setting Display LCD It ...

Page 150: ...QUIET button OUTDOOR UNIT QUIET operation POWERFUL button POWERFUL operation TIMER CANCEL button It cancels the timer setting It cannot be used for the WEEKLY TIMER operation SELECT button It changes the ON OFF TIMER and WEEKLY TIMER settings WEEKLY button PROGRAM button COPY button BACK button NEXT button Lamp brightness setting button SWING button Adjusting the airflow direction ECONO button ECO...

Page 151: ...e both old batteries together When the system is not used for a long time take the batteries out The batteries will last for approximately 1 year If the remote controller display begins to fade and the degradation of reception performance occurs within a year however replace both batteries with new size AAA LR03 alkaline The attached batteries are provided for the initial use of the system The usa...

Page 152: ...s or decreases the time display 5 Press Point the remote controller at the indoor unit when pressing the buttons blinks NOTE Note on setting the clock If the indoor unit s internal clock is not set to the correct time the ON TIMER OFF TIMER and WEEKLY TIMER will not operate punctually After the power is turned on the flap of the indoor unit opens and closes once to set the reference position is di...

Page 153: ... be degraded if the outdoor temperature is high The computer chip works to rid the room of humidity while maintaining the temperature as much as possible It automatically controls temperature and airflow rate so manual adjustment of these functions is unavailable In AUTO operation the system selects an appropriate operation mode COOL or HEAT based on the room and outside temperatures and starts th...

Page 154: ...y work to stop the operation of the outdoor unit only Condensation may occur on the indoor unit and drip A safety device may work to stop the operation A safety device may work to stop the operation Condensation may occur on the indoor unit and drip Recommended temperature setting For cooling 26 28 C For heating 20 24 C Tips for saving energy Be careful not to cool heat the room too much Keeping t...

Page 155: ...heat pump system heats the room by circulating hot air around all parts of the room After the start of HEAT operation it takes some time before the room gets warmer In HEAT operation frost may occur on the outdoor unit and lower the heating capacity In that case the system switches into defrosting operation to take away the frost During defrosting operation hot air does not flow out of indoor unit...

Page 156: ... it is not operating Connecting outdoor unit RXS20 25 1 15W Other outdoor units 15 20W The outdoor unit consumes 40 to 55W of power at the time of compressor preheating If you are not going to use the air conditioner for a long period for example in spring or autumn turn the breaker off Use the air conditioner in the following conditions MODE COOL HEAT DRY Operating conditions If operation is cont...

Page 157: ...m After the start of HEAT operation it takes some time before the room gets warmer In HEAT operation frost may occur on the outdoor unit and lower the heating capacity In that case the system switches into defrosting operation to take away the frost During defrosting operation hot air does not flow out of indoor unit This air conditioner cools the room by releasing the heat in the room outside The...

Page 158: ... Use this operation to prioritize quiet and currentless heating operation or when the noise from RADIANT1 operation bothers you The gentle breeze operation starts from the beginning CAUTION During the RADIANT operation the surface temperature of the panel will be about 55 C at maximum Even after the RADIANT operation is finished the surface temperature of the panel of the air conditioner stays hot...

Page 159: ... to stop the operation of the outdoor unit only Condensation may occur on the indoor unit and drip A safety device may work to stop the operation Condensation may occur on the indoor unit and drip 2 3 4 5MXS 10 46 C RXG 10 46 C 2 3 4 5MXS 10 46 C RXG 10 46 C Recommended temperature setting For cooling 26 28 C For heating 20 24 C Tips for saving energy Be careful not to cool heat the room too much ...

Page 160: ...e while flaps are in auto swing mode Press when the flaps have reached the desired position disappears from the LCD To adjust the louvers at desired position Hold the knob and move the louvers You will find a knob on the left side and the right side blades When the unit is installed in the corner of a room the direction of the louvers vertical blades should be facing away from the wall If they fac...

Page 161: ...lways use a remote controller to adjust the angles of the flaps If you attempt to move it forcibly with hand when it is swinging the mechanism may be broken Be careful when adjusting the louvers Inside the air outlet a fan is rotating at a high speed CAUTION At smaller airflow rates the cooling heating effect is also smaller If the air conditioner is operated in COOL or DRY operation with the flap...

Page 162: ...effective while flap is in auto swing mode Hold the knob and move the louvers You will find a knob on the left side and the right side blades When the unit is installed in the corner of a room the direction of the louvers vertical blades should be facing away from the wall If they face the wall the wall will block off the wind causing the cooling or heating efficiency to drop If the flap is in the...

Page 163: ...mpt to move the flap and louvers forcibly with hand when they are swinging the mechanism may be broken Be careful when adjusting the louvers Inside the air outlet a fan is rotating at a high speed If the air conditioner is operated in COOL or DRY operation with the flap kept stopped in the downward direction the flap will automatically start operating in approximately an hour in order to prevent d...

Page 164: ...nd Rate is displayed on the LCD The flap horizontal blade will begin to swing Press when the flap has reached the desired position Hold the knob and move the louvers You will find a knob on the left side and the right side blades When the unit is installed in the corner of a room the direction of the louvers vertical blades should be facing away from the wall If they face the wall the wall will bl...

Page 165: ...djusting the Airflow Direction and Rate Each pressing of advances the airflow rate setting in sequence When the airflow is set to indoor unit quiet operation will start and the noise from the unit will become quieter In indoor unit quiet operation the airflow rate is set to a weak level In DRY or RADIANT operation the airflow rate setting is not variable Always use a remote controller to adjust th...

Page 166: ...uto COOL DRY The flap will go up HEAT The flap will go down The flaps will return to the memory position from before COMFORT AIRFLOW operation disappears from the LCD Press Press again COOL operation HEAT operation Notes on COMFORT AIRFLOW operation The flap position will change preventing air from blowing directly on the occupants of the room POWERFUL operation and COMFORT AIRFLOW operation canno...

Page 167: ...NTELLIGENT EYE operation Press Press again INTELLIGENT EYE is the infrared sensor which detects the human movement If nobody in the room for more than 20 minutes the operation automatically changes to energy saving operation is displayed on the LCD The INTELLIGENT EYE lamp lights green disappears from the LCD The INTELLIGENT EYE lamp goes off Display ...

Page 168: ...ges the temperature 1 C in COOL 1 C in DRY operation from set temperature This operation decreases the airflow rate slightly in FAN operation only NOTE Notes on INTELLIGENT EYE operation Energy saving operation Application range is as follows Vertical angle 90 Side view Horizontal angle 110 Top view Sensor may not detect moving objects further than 7m away Check the application range Sensor detect...

Page 169: ...ns which are not available POWERFUL operation cannot be used together with ECONO COMFORT AIRFLOW or OUTDOOR UNIT QUIET operation Priority is given to the function of whichever button is pressed last POWERFUL operation can only be set when the unit is running Pressing causes the settings to be canceled and the disappears from the LCD POWERFUL operation will not increase the capacity of the air cond...

Page 170: ...ERFUL operation cannot be used together with RADIANT2 ECONO or OUTDOOR UNIT QUIET operation Priority is given to the function of whichever button is pressed last POWERFUL operation can only be set when the unit is running Pressing causes the settings to be canceled and the disappears from the LCD POWERFUL operation will not increase the capacity of the air conditioner if the air conditioner is alr...

Page 171: ...onvenient during the night The noise level of the outdoor unit will be lower This is convenient when you need to consideration for your neighbourhood This function is available in COOL HEAT and AUTO operation This is not available in RADIANT FAN and DRY operation POWERFUL operation and OUTDOOR UNIT QUIET operation cannot be used at the same time Priority is given to the function of whichever butto...

Page 172: ...g ECONO operation The circuit breaker will hardly trip even if the air conditioner and other appliances are used at same time Running current and power consumption Maximum during normal operation Maximum during ECONO operation ECONO operation Normal operation This diagram is a representation for illustrative purposes only The maximum running current and power consumption of the air conditioner in ...

Page 173: ...es the time setting rapidly 3 Press again and setting time are displayed on the LCD The multi monitor lamp blinks twice The TIMER lamp periodically lights orange To cancel OFF TIMER operation and setting time disappear from the LCD and day of the week are displayed on the LCD Press Notes on TIMER operation When TIMER is set the present time is not displayed Once you set ON OFF TIMER the time setti...

Page 174: ...he TIMER lamp lights yellow and setting time disappear from the LCD and day of the week are displayed on the LCD The TIMER lamp goes off 1 Press 3 Press again Press 2 Press until the time setting reaches the point you like is displayed on the LCD blinks Display NOTE Notes on TIMER operation When TIMER is set the present time is not displayed Once you set ON OFF TIMER the time setting is kept in th...

Page 175: ...the time setting rapidly 3 Press again and setting time are displayed on the LCD The OPERATION lamp blinks and the TIMER lamp lights yellow To cancel OFF TIMER operation Press and setting time disappear from the LCD and day of the week are displayed on the LCD Notes on TIMER operation When TIMER is set the present time is not displayed Once you set ON OFF TIMER the time setting is kept in the memo...

Page 176: ...the point you like Each pressing of either button increases or decreases the time setting by 10 minutes Holding down either button changes the setting rapidly 3 Press again and setting time are displayed on the LCD The multi monitor lamp blinks twice The TIMER lamp periodically lights orange To cancel ON TIMER operation Press and setting time disappear from the LCD and day of the week are displaye...

Page 177: ...pear from the LCD and setting time are displayed on the LCD The TIMER lamp lights yellow 1 Press 3 Press again 2 Press until the time setting reaches the point you like is displayed on the LCD blinks and setting time disappear from the LCD and day of the week are displayed on the LCD The TIMER lamp goes off A sample setting for combining the 2 timers is shown below Press Display Example Present ti...

Page 178: ...increases or decreases the time setting by 10 minutes Holding down either button changes the time setting rapidly 3 Press again and setting time are displayed on the LCD The OPERATION lamp blinks and the TIMER lamp lights yellow To cancel ON TIMER operation Press and setting time disappear from the LCD and day of the week are displayed on the LCD To combine ON TIMER and OFF TIMER A sample setting ...

Page 179: ...nday through Friday while different timer settings are made for the weekend Tuesday to Friday Use the copy mode to make settings for Tuesday to Friday because these settings are the same as those for Monday Program 1 ON Program 3 ON Program 2 OFF Program 4 OFF Program 1 ON Program 3 ON Program 2 OFF Program 4 OFF ON ON OFF OFF 8 00 10 00 21 00 19 00 Up to 4 reservations per day and 28 reservations...

Page 180: ...o 4 settings can be made per day 2 Press to select the desired day of the week and reservation number Pressing changes the reservation number and the day of the week 3 Press The day of the week and reservation number will be set and blink 4 Press to select the desired mode Pressing changes or setting in sequence Pressing alternates the following items appearing on the LCD in rotational sequence In...

Page 181: ...The next reservation screen will appear To continue further settings repeat the procedure from step 4 The TIMER lamp lights yellow 10 Press to complete the setting is displayed on the LCD and WEEKLY TIMER operation is activated A reservation made once can be easily copied and the same settings used for another day of the week Refer to copy mode Notes on WEEKLY TIMER operation Do not forget to set ...

Page 182: ...ay of the week will be copied Tuesday to Friday 2 Press to confirm the day of the week to be copied 4 Press to select the destination day of the week Be sure to direct the remote controller toward the indoor unit and check for a receiving tone and flashing the OPERATION lamp The reservation will be copied to the selected day of the week The whole reservation of the selected day of the week will be...

Page 183: ...s Normal The reservation can be confirmed Confirming a reservation Confirmation The day of the week and the reservation number of the current day will be displayed 1 Press 2 Press to select the day of the week and the reservation number to be confirmed Pressing displays the reservation details To change the confirmed reserved settings select the reservation number and press The mode is switched to...

Page 184: ...ing with selecting blank This function can be used for deleting reservations for each day of the week It can be used while confirming or setting reservations 1 Press to select the day of the week to be deleted Be sure to direct the remote controller toward the indoor unit and check for a receiving tone This operation is not effective while WEEKLY TIMER is being set All reservations will be deleted...

Page 185: ...room after this will give priority to HEAT and RADIANT operation In this situation the air conditioner running in FAN operation will go on standby and the OPERATION lamp will flash When the RADIANT operation starts when the FAN operation is used in another room the FAN operation is switched to the HEAT operation With the priority room setting active With the priority room setting present but inact...

Page 186: ...hen POWERFUL operation is used Priority when using OUTDOOR UNIT QUIET operation Example Room A is the priority room in the examples When COOL operation is selected in room A while operating the following modes in room B C and D Example Room A is the priority room in the examples The indoor units in rooms A B C and D are all operating If the unit in room A enters POWERFUL operation operation capaci...

Page 187: ...SiBE121135 RA Indoor Unit Operation Manual 175 2 1 17 Quick Reference FTXG25 35 50JV1BW A Quick Reference ...

Page 188: ...RA Indoor Unit SiBE121135 176 Operation Manual FTXS20 25K2V1B CTXS15 35K2V1B Quick Reference ...

Page 189: ...SiBE121135 RA Indoor Unit Operation Manual 177 FVXG25 35 50K2V1B Quick Reference ...

Page 190: ...B Read Before Operation Names of Parts 179 182 185 Operation AUTO DRY COOL HEAT FAN Operation 188 188 188 Adjusting the Airflow Direction 190 192 194 COMFORT AIRFLOW and INTELLIGENT EYE Operation 196 200 POWERFUL Operation 203 203 203 OUTDOOR UNIT QUIET Operation 204 204 204 ECONO Operation 205 205 205 OFF TIMER Operation 206 206 206 ON TIMER Operation 207 207 207 WEEKLY TIMER Operation 208 208 20...

Page 191: ...SiBE121135 RA Indoor Unit Operation Manual 179 2 2 2 Names of Parts FTXS20 25 35 42 50J2V1B 17 15 14 16 13 1 3 4 5 7 9 11 10 8 12 6 2 Names of Parts Indoor Unit ...

Page 192: ...e louvers are inside of the air outlet 12 Model name plate 13 Indoor unit ON OFF switch Push this switch once to start operation Push once again to stop it The operation mode refers to the following table COOLING ONLY HEAT PUMP AUTO Temperature setting 22 C 25 C Airflow rate AUTO AUTO This switch is useful when the remote controller is missing 14 OPERATION lamp green 15 TIMER lamp yellow 16 INTELL...

Page 193: ... Press once again to stop it 6 TEMPERATURE adjustment buttons It changes the temperature setting 7 MODE selector button It selects the operation mode AUTO DRY COOL HEAT FAN 8 QUIET button OUTDOOR UNIT QUIET operation 9 ECONO button ECONO operation 10 SWING button Horizontal blades flaps 11 SWING button Vertical blades louvers 12 COMFORT SENSOR button COMFORT AIRFLOW and INTELLIGENT EYE operation 1...

Page 194: ...RA Indoor Unit SiBE121135 182 Operation Manual FTXS60 71GV1B Names of Parts Indoor Unit 17 16 13 15 14 1 3 4 5 9 11 10 8 2 6 12 7 ...

Page 195: ...r 8 Display 9 Air outlet 10 Flaps horizontal blades 11 Louvers vertical blades The louvers are inside of the air outlet 12 Model name plate 13 Indoor unit ON OFF switch Push this switch once to start operation Push once again to stop it The operation mode refers to the following table This switch is useful when the remote controller is missing 14 OPERATION lamp green 15 TIMER lamp yellow 16 INTELL...

Page 196: ...operation Press once again to stop it 6 TEMPERATURE adjustment buttons It changes the temperature setting 7 MODE selector button It selects the operation mode AUTO DRY COOL HEAT FAN 8 QUIET button OUTDOOR UNIT QUIET operation 9 ECONO button ECONO operation 10 SWING button Flaps horizontal blades 11 SWING button Louvers vertical blades 12 COMFORT SENSOR button COMFORT AIRFLOW and INTELLIGENT EYE op...

Page 197: ... This setting is recommended The unit is shipped from the factory with this setting This setting blows air from upper outlet only This setting automatically decides a blow pattern depending on mode and conditions Before opening the front panel be sure to stop the operation and turn the breaker OFF Do not touch the metal parts on the inside of the indoor unit as it may result in injury ...

Page 198: ... 7 Air filter 8 Horizontal blade flap 9 Operation lamp green 10 TIMER lamp yellow 11 Indoor Unit ON OFF switch Push this switch once to start operation Push once again to stop it The operation mode refers to the following table This switch is useful when the remote controller is missing 12 Signal receiver It receives signals from the remote controller When the unit receives a signal you will hear ...

Page 199: ...tton Press this button once to start operation Press once again to stop it 6 TEMPERATURE adjustment buttons It changes the temperature setting 7 MODE selector button It selects the operation mode AUTO DRY COOL HEAT FAN 8 QUIET button OUTDOOR UNIT QUIET operation 9 ECONO button ECONO operation 10 SWING button Adjusting the Airflow Direction 11 WEEKLY PROGRAM COPY BACK NEXT button WEEKLY TIMER opera...

Page 200: ...ature setting is not variable The air conditioner operates with the operation mode of your choice From the next time on the air conditioner will operate with the same operation mode Each pressing of the button advances the mode setting in sequence COOLING ONLY model HEAT PUMP model AUTO DRY COOL HEAT FAN Operation is displayed on the LCD The OPERATION lamp lights up disappears from the LCD Then OP...

Page 201: ...irculating hot air around all parts of the room After the start of heating operation it takes some time before the room gets warmer In heating operation frost may occur on the outdoor unit and lower the heating capacity In that case the system switches into defrosting operation to take away the frost During defrosting operation hot air does not flow out of indoor unit A pinging sound may be heard ...

Page 202: ... The 3 D airflow direction Upper Lower Right Left 3 D Right and left airflow direction To start auto swing is displayed on the LCD The louvers vertical blades will begin to swing The following illustrations show respective airflow directions and are displayed on the LCD The flaps and louvers move in turn To cancel 3 D airflow press either or again The flaps or louvers will stop moving is displayed...

Page 203: ...se a remote controller to adjust the angles of the flaps and louvers If you attempt to move the flaps and louvers forcibly with hand when they are swinging the mechanism may be broken Always use a remote controller to adjust the louvers angles In side the air outlet a fan is rotating at a high speed The flaps swinging range depends on the operation See the figure Using 3 D airflow circulates cold ...

Page 204: ...ective airflow directions Upper and lower airflow direction Right and left airflow direction The 3 D airflow direction Upper Lower Right Left 3 D is displayed on the LCD The flaps horizontal blades will begin to swing is displayed on the LCD The louvers vertical blades will begin to swing and are displayed on the LCD The flaps and louvers move in turn To cancel 3 D airflow press either or again Th...

Page 205: ...on In the 3 D airflow the flaps and louvers move in turn or disappears from the LCD Always use a remote controller to adjust the angles of the flaps and louvers If you attempt to move it forcibly with hand when it is swinging the mechanism may be broken Always use a remote controller to adjust the louvers angles In side the air outlet a fan is rotating at a high speed Note on the angles of the fla...

Page 206: ... SWING button once more The flap will stop moving disappears from the LCD To adjust the vertical blades louvers Hold the knob and move the louver You will find a knob on the left side and the right side blades Unless SWING is selected you should set the flap at a near horizontal angle in HEAT mode and at a upward position in COOL or DRY mode to obtain the best performance ATTENTION When adjusting ...

Page 207: ...ople air is blown upper air outlet room temperature is equalized Air is blown from the upper and lower air outlets for high speed cooling during COOL mode and for filling the room with warm air during HEAT mode So that air does not come into direct contact with people Air is blown upper air outlet At start or when air temperature is low During Dry mode so that cold air does not come into direct co...

Page 208: ...OOL operation and in the downward direction while in HEAT operation which will provide a comfortable wind that will not come in direct contact with people INTELLIGENT EYE is the infrared sensor which detects the human movement If no one is in the room for more than 20 minutes the operation automatically changes to energy saving operation The INTELLIGENT EYE sensor according to the following situat...

Page 209: ...g as above will stop movement of them The INTELLIGENT EYE lamp lights up The lamp will be lit while human movements are detected INTELLIGENT EYE COMFORT AIRFLOW Press and select blank on the LCD COMFORT AIRFLOW and INTELLIGENT EYE The flaps will adjust the airflow direction upward while cooling and adjust the airflow direction downward while heating The sensors will detect the movement of people i...

Page 210: ...eople in the areas This may occur depending on the clothes the people are wearing if there are no movements of the people in the areas The airflow direction from the louvers will be leftward if there are people in both areas 1 and 2 or if there is a person right in front of the sensors because the sensors on the both sides will detect the person Due to the position of the sensor people might be ex...

Page 211: ...ion during which the sensors of the INTELLIGENT EYE are working to detect the movement of people When the sensors detect people the louvers will direct the airflow in such way that it will not be blown directly on them If there are no people the air conditioner will go into energy saving operation after 20 minutes If no presence detected in the room for 20 minutes the energy saving operation will ...

Page 212: ... the human movement If nobody in the room for more than 20 minutes the operation automatically changes to energy saving operation Normal operation The air conditioner is in normal operation while the sensor is detecting the movement of people The INTELLIGENT EYE lamp lights up 20 minutes after start energy saving operation The set temperature is shifted in 2 C steps The INTELLIGENT EYE lamp is goe...

Page 213: ...cons the air conditioner will be in COMFORT AIRFLOW operation combined with INTELLIGENT EYE operation When the flaps horizontal blades are swinging the operating as above will stop movement of them The INTELLIGENT EYE lamp lights up The lamp will be lit while human movements are detected Energy saving operation If no presence detected in the room for 20 minutes the energy saving operation will sta...

Page 214: ...e application range Sensor detection sensitivity changes according to indoor unit location the speed of passersby temperature range etc The sensor also mistakenly detects pets sunlight fluttering curtains and light reflected off of mirrors as passersby INTELLIGENT EYE operation will not go on during POWERFUL operation NIGHT SET mode will not go on during use of INTELLIGENT EYE operation Note on co...

Page 215: ...not available POWERFUL operation cannot be used together with ECONO COMFORT AIRFLOW or OUTDOOR UNIT QUIET operation Priority is given to the function of whichever button is pressed last POWERFUL operation can only be set when the unit is running POWERFUL operation will not increase the capacity of the air conditioner if the air conditioner is already in operation with its maximum capacity demonstr...

Page 216: ...i system the OUTDOOR UNIT QUIET operation will work only when this function is set on all operated indoor units This function is available in COOL HEAT and AUTO operation This is not available in FAN and DRY operation POWERFUL operation and OUTDOOR UNIT QUIET operation cannot be used at the same time Priority is given to the function of whichever button is pressed last Even the operation is stoppe...

Page 217: ...rent and power consumption Normal operation Maximum during normal operation Maximum during ECONO operation ECONO operation From start up until set temperature is reached The maximum running current and power consumption of the air conditioner in ECONO operation vary with the connecting outdoor unit ECONO operation can only be set when the unit is running ECONO operation is a function which enables...

Page 218: ...orrect If not set the clock to the present time Press until the time setting reaches the point you like Each pressing of either button increases or decreases the time setting by 10 minutes Holding down either button changes the setting rapidly To cancel the OFF TIMER Operation When TIMER is set the present time is not displayed Once you set ON OFF TIMER the time setting is kept in the memory The m...

Page 219: ...N TIMER and OFF TIMER A sample setting for combining the 2 timers is shown below NOTE In the following cases set the timer again Example Present time 23 00 The unit operating OFF TIMER at 0 00 ON TIMER at 14 00 Combined Display Check that the clock is correct If not set the clock to the present time Press until the time setting reaches the point you like Each pressing of either button increases or...

Page 220: ...each day of the week It is convenient if the WEEKLY TIMER is set according to the family s life style Tuesday to Friday Use the copy mode to make settings for Tuesday to Friday because these settings are the same as those for Monday Up to 4 reservations per day and 28 reservations per week can be set in the WEEKLY TIMER The effective use of the copy mode ensures ease of making reservations The use...

Page 221: ...0 25 C 27 C Program 1 Program 2 Program 3 Program 4 ON OFF ON OFF Monday blank ON TIMER OFF TIMER Make sure the day of the week and time are set If not set the day of the week and time The day of the week and the reservation number of the current day will be displayed 1 to 4 settings can be made per day Press to select the desired day of the week and reservation number Pressing the changes the res...

Page 222: ... Cooling The unit operates at 18 C even if it is set at 10 to 17 C Heating The unit operates at 30 C even if it is set at 31 to 32 C The set temperature is only displayed when the mode setting is on The temperature will be set and go to the next reservation setting To continue further settings repeat the procedure from step 4 Be sure to direct the remote controller toward the indoor unit and check...

Page 223: ...time The ON OFF TIMER operation has priority if it is set while WEEKLY TIMER is still active The WEEKLY TIMER will go into standby state and will disappear from the LCD When ON OFF TIMER is up the WEEKLY TIMER will automatically become active Only the time and set temperature with the weekly timer are sent with the Set the weekly timer only after setting the operation mode the fan strength and the...

Page 224: ...am 4 ON OFF ON OFF Monday Program 1 Program 2 Program 3 Program 4 ON OFF ON OFF COPY A reservation made once can be copied another day of the week The whole reservation of the selected day of the week will be copied Tuesday to Friday Press to confirm the day of the week to be copied The whole reservation of the selected day of the week will be copied Press to select the destination day of the week...

Page 225: ...on of the selected day of the week will be copied To continue copying the settings to other days of the week repeat step 4 and step 5 is displayed on the LCD and WEEKLY TIMER operation is activated The entire reservation of the source day of the week is copied in the copy mode In the case of making a reservation change for any day of the week individually after copying the content of weekly reserv...

Page 226: ...eration press the again Setting Displays Normal Confirmation The day of the week and the reservation number of current day will be displayed Press to select the day of the week and the reservation number to be confirmed To change the confirmed reserved settings select the reservation number and press The mode is switched to setting mode Go to setting mode step 4 is displayed on the LCD and WEEKLY ...

Page 227: ... reservation will be deleted This function can be used for deleting reservations for each day of the week It can be used while confirming or setting reservations Select the day of the week to be canceled with The reservation of the selected day of the week will be deleted Hold for 5 seconds while normal display Be sure to direct the remote control toward the main unit and check for a receiving ton...

Page 228: ... time hours to prevent annoyance to neighbors The NIGHT QUIET mode is activated when the temperature drops 5 C or more below the highest temperature recorded that day Therefore when the temperature difference is less than 5 C this function will not be activated NIGHT QUIET mode reduces slightly the cooling efficiency of the unit See Priority room setting on the next page COOL DRY and FAN operation...

Page 229: ...on is used 3 Priority when using OUTDOOR UNIT QUIET operation COOL HEAT mode lock Available only for heat pump models The COOL HEAT mode lock requires initial programming during installation Please consult your authorized dealer for assistance The COOL HEAT mode lock sets the unit forcibly to either COOL or HEAT operation This function is convenient when you wish to set all indoor units connected ...

Page 230: ...spended Dual Type Duct Connected Type FLXS25 60BAVMB FDXS25 35E7VMB FDXS50 60C7VMB Read Before Operation Remote Controller 219 220 Operation AUTO DRY COOL HEAT FAN Operation 221 221 Adjusting the Airflow Direction 223 POWERFUL Operation 225 225 OUTDOOR UNIT QUIET Operation 226 226 HOME LEAVE Operation 227 227 TIMER Operation 229 229 Note for Multi System 231 231 Drawing No 3P194444 5C 3P196326 9C ...

Page 231: ...ges the temperature setting 6 ON OFF button Press this button once to start operation Press once again to stop it 7 MODE selector button It selects the operation mode AUTO DRY COOL HEAT FAN 8 QUIET button OUTDOOR UNIT QUIET operation 9 FAN setting button It selects the air flow rate setting 10 SWING button 11 ON TIMER button 12 OFF TIMER button 13 TIMER Setting button It changes the time setting 1...

Page 232: ...anges the temperature setting 6 ON OFF button Press this button once to start operation Press once again to stop it 7 MODE selector button It selects the operation mode AUTO DRY COOL HEAT FAN 8 QUIET button OUTDOOR UNIT QUIET operation 9 FAN setting button It selects the air flow rate setting 10 ON TIMER button 11 OFF TIMER button 12 TIMER Setting button It changes the time setting 13 TIMER CANCEL...

Page 233: ... operation mode of your choice From the next time on the air conditioner will operate with the same operation mode Press to raise the temperature and press to lower the temperature To start operation To stop operation To change the temperature setting 1 Press MODE selector button and select a operation mode Each pressing of the button advances the mode setting in sequence 2 Press ON OFF button The...

Page 234: ...gets warmer In heating operation frost may occur on the outdoor unit and lower the heating capacity In that case the system switches into defrosting operation to take away the frost During defrosting operation hot air does not flow out of indoor unit Note on COOL operation This air conditioner cools the room by blowing the hot air in the room outside so if the outside temperature is high performan...

Page 235: ...low Direction You can adjust the air flow direction to increase your comfort To adjust the horizontal blade flap 1 Press SWING button is displayed on the LCD and the flaps will begin to swing 2 When the flaps have reached the desired position press SWING button once more The flap will stop moving disappears from the LCD 1 2 ...

Page 236: ...elected you should set the flap at a near horizontal angle in COOL or DRY mode to obtain the best performance In COOL or DRY mode if the flap is fixed at a downward position the flap automatically moves in about 60 minutes to prevent condensation on it ATTENTION Always use a remote controller to adjust the flap angle If you attempt to move it forcibly with hand when it is swinging the mechanism ma...

Page 237: ...hich were used before POWERFUL operation When using POWERFUL operation there are some functions which are not available is displayed on the LCD 2 Press POWERFUL button again disappears from the LCD Notes on POWERFUL operation In COOL and HEAT mode To maximize the cooling heating effect the capacity of outdoor unit must be increased and the air flow rate be fixed to the maximum setting The temperat...

Page 238: ... operation 1 Press QUIET button is displayed on the LCD 2 Press QUIET button again disappears from the LCD Note on OUTDOOR UNIT QUIET operation This function is available in COOL HEAT and AUTO modes This is not available in FAN and DRY mode POWERFUL operation and OUTDOOR UNIT QUIET operation cannot be used at the same time Priority is given to the function of whichever button is pressed last If op...

Page 239: ... the unit To change the recorded information repeat steps 1 3 To start HOME LEAVE operation To cancel HOME LEAVE operation 2 Press HOME LEAVE button again The HOME LEAVE lamp goes off 1 Press HOME LEAVE button The HOME LEAVE lamp lights up To set the temperature and air flow rate for HOME LEAVE operation When using HOME LEAVE operation for the first time please set the temperature and air flow rat...

Page 240: ...oom when going to bed The unit will maintain the temperature in the room at a comfortable level while you sleep When you enter the living room in the morning the temperature will be just right Disengaging HOME LEAVE Operation will return the temperature to that set for normal operation Even the coldest winters will pose no problem Once you record the temperature and air flow rate settings you most...

Page 241: ...ches the point you like Every pressing of either button increases or decreases the time setting by 10 minutes Holding down either button changes the setting rapidly 3 Press OFF TIMER button again The TIMER lamp lights up When TIMER is set the present time is not displayed Once you set ON OFF TIMER the time setting is kept in the memory The memory is canceled when remote controller batteries are re...

Page 242: ...ks 2 Press TIMER Setting button until the time setting reaches the point you like Every pressing of either button increases or decreases the time setting by 10 minutes Holding down either button changes the setting rapidly 3 Press ON TIMER button again The TIMER lamp lights up 4 Press CANCEL button The TIMER lamp goes off Present time 11 00 p m The unit operating OFF TIMER at 0 00 a m ON TIMER at ...

Page 243: ...g situations are exceptions so please keep this in mind If the operation mode of the first room is FAN Mode then using Heating Mode in any room after this will give priority to heating In this situation the air conditioner running in FAN Mode will go on standby and the operation lamp will flash NIGHT QUIET Mode requires initial programming during installation Please consult your retailer or dealer...

Page 244: ...her rooms Room A is the Priority Room in the examples When COOL mode is selected in Room A while operating the following modes in Room B C and D The unit enters Standby Mode Operation resumes when the Room A unit stops operating If the unit is set to COOL mode operation continues If set to HEAT mode it enters Standby Mode Operation resumes when the Room A unit stops operating Room A is the Priorit...

Page 245: ...SiBE121135 SA Indoor Unit Operation Manual 233 3 SA Indoor Unit 3 1 BRC1D528 1 1 2 9 3 25 22 11 10 37 35 27 26 12 14 17 34 24 5 20 21 18 16 13 15 19 32 31 30 29 28 4 36 33 8 23 7 6 ...

Page 246: ...SA Indoor Unit SiBE121135 234 Operation Manual 2 Start 5s 5s 5s 5s 5s End ...

Page 247: ...vice person to do this 1 Features and functions 1 2 Name and function of switches and icons 2 3 Setting up the controller 4 4 Description of the operation modes 5 5 Operation 5 6 Programming the schedule timer 10 1 BASIC REMOTE CONTROLLER The basic remote controller functions are ON OFF operation mode change over temperature adjustment air volume adjustment air flow direction adjustment 2 CLOCK FU...

Page 248: ...AVE HOME 6 BUTTON PERMISSION LEVEL 2 Name and function of switches and icons Refer to figure 1 1 ON OFF BUTTON Press the ON OFF button to start or stop the system 2 OPERATION LAMP The operation lamp lights up during operation or blinks if a malfunction occurs 3 OPERATION MODE ICON These icons indicate the current operation mode FAN DRY AUTOMATIC COOLING HEATING 4 VENTILATION MODE ICON 5 VENTILATIO...

Page 249: ...ure of the installation not shown in LIMIT operation or in FAN or DRY mode 19 SETTING Not used for service purposes only 20 AIR FLOW DIRECTION ICON This icon indicates the air flow direction only for installations with motorised air flow ßaps 21 NOT AVAILABLE 22 FAN SPEED ICON This icon indicates the set fan speed 23 DEFROST HOTSTART MODE ICON This icon indicates that the defrost hotstart mode is ...

Page 250: ... active 30 SCHEDULE TIMER BUTTON This button enables or disables the schedule timer 31 TIME ADJUST BUTTON These buttons are used to adjust the clock or when in programming mode to adjust the programmed action time Both buttons have an auto repeat function 32 TEMPERATURE ADJUST BUTTONS 33 OPERATION CHANGE MIN MIX BUTTON 1 select the operation mode of the installation FAN DRY AUTOMATIC COOLING HEATI...

Page 251: ...ontroller can be implemented for a wide variety of installations and features it might occur that you select a function that is not available on your installation if this is the case the message will appear 4 Description of the operation modes 1 FAN ONLY OPERATION In this mode air only circulates without heating or cooling 2 DRY OPERATION In this mode the air humidity will be lowered with a minima...

Page 252: ...ION User adjustable parameters Setpoint temperature use the buttons Fan speed use the button Air flow direction adjust use the button Ventilation mode use the button Ventilation amount use the button 5 HEATING OPERATION User adjustable parameters Setpoint temperature use the buttons Fan speed use the button Air flow direction adjust use the button Ventilation mode use the button Ventilation amount...

Page 253: ...d programmed action Refer to Manual operation on page 5 The next programmed action in the schedule timer will return control to the schedule timer Use the button to enable or disable the schedule timer The schedule timer overrules the button only use the button to enable or disable the schedule timer The schedule timer is enabled when the icon is visible The button only overrules the schedule time...

Page 254: ...he room temperature within a specified range limit operation and are displayed The schedule timer will change the operation mode in LIMIT operation only To be able to verify the programmed actions you can browse the programmed actions see below Browsing the programmed actions in the schedule timer read out only Browsing the programmed actions of the schedule timer is a sequential process Only 2 bu...

Page 255: ...ssuming that 5 actions were programmed for Tuesday a total of 5 presses will be required to display all programmed actions Continue pressing the button until the day of the week indicator displays the current day not blinking you have now quit browsing The number of times that the button will have to be pressed to quit browsing depends on the number of programmed actions in the schedule timer How ...

Page 256: ...ration Finally you must enter the time of the day when the action must be enabled If you program 2 or more actions on the same day and at the same time of the day only the action with the highest action number 2 5 will be executed Programming the schedule timer is flexible you can add remove or alter programmed actions whenever required and straightforward programming steps are limited to a minimu...

Page 257: ...all schedule timer actions are idle Browse to Monday by pressing the button The icon appears will blink and one of the icons might be displayed but all other fields remain blank indicating that no actions are programmed for Monday Enter the program mode by holding down the button for 5 seconds the icon will now blink too Press the button to activate the first programmed action A blinking is displa...

Page 258: ... schedule timer action programmed for the current day are only valid for the selected day use the confirm last action and go to next day function by pressing the button for 5 seconds Program mode is quit and depending on the choice made the programmed actions are saved for Monday and possibly Tuesday PROGRAMMING THE OTHER DAYS OF THE WEEK Programming the other days of the week is identical to prog...

Page 259: ...uidelines below might help to solve your problem If you cannot remedy the problem consult your installer No readings on the remote controller display blank Check if the mains power is still applied to your installation Only is displayed This indicates that the installation has just been powered please wait until disappears The schedule timer does work but the programmed actions are executed at the...

Page 260: ...lity Freeze up Protection Control FVXG Series Only 278 5 5 Thermistor or Related Abnormality RA Indoor Unit 280 5 6 Front Panel Open Close Fault FTXG Series Only 281 5 7 Signal Transmission Error between Indoor Unit and Outdoor Unit 282 5 8 Unspecified Voltage between Indoor Unit and Outdoor Unit 283 6 Troubleshooting for SA Indoor Unit FCQG FFQ FHQ FDBQ FBQ Series 284 6 1 Indoor Unit PCB Abnormal...

Page 261: ... or Related Abnormality Outdoor Unit 317 7 17 Electrical Box Temperature Rise 319 7 18 Radiation Fin Temperature Rise 321 7 19 Output Overcurrent Detection 323 8 Check 325 8 1 Thermistor Resistance Check 325 8 2 Fan Motor Connector Check 326 8 3 Hall IC Check 327 8 4 Indoor Electronic Expansion Valve Coil Check 327 8 5 Power Supply Waveform Check 328 8 6 Outdoor Electronic Expansion Valve Check 32...

Page 262: ...lfunctions 2 When a signal transmission error occurs between the indoor and outdoor units In either case conduct the diagnostic procedure described in the following pages Wall Mounted Type FTXG Series Wall Mounted Type FTXS K CTXS K Series Wall Mounted Type FTXS J Series Wall Mounted Type FTXS G Series Floor Standing Type FVXG Series Operation lamp multi colored R12750 Operation lamp green R17161 ...

Page 263: ...k again if the operation lamp is normal If the lamp stops blinking after the above steps there is no malfunction Operation stops and operation lamp blinks only for indoor unit which different operation mode is set later The first set operation mode has priority Service Monitor The indoor unit has one green LED LED A on the control PCB When the microcomputer works in order the LED A blinks Floor St...

Page 264: ...en LED LED A and red LEDs on the outdoor unit PCB The LED A indicates microcomputer operation condition In normal condition the LED A is blinking and the other LEDs are OFF Even after the error is canceled and the unit operates in normal condition the LED indication remains Service monitor PCB 3 or 4 room model 5 room model LED A LED 1 LED 2 LED 3 LED 4 LED 1 LED 2 LED 3 LED 4 LED 5 R17270 LED A ...

Page 265: ...annot be used when the outdoor temperature is below 10 10 C depending on the model Diagnose with remote controller indication 267 Some indoor units do not operate Check the type of the indoor units Check if the indoor unit type is compatible with the outdoor unit Diagnose with remote controller indication 267 Units operate but do not cool or do not heat Check for wiring and piping errors in the co...

Page 266: ...e timer cancel button down for 5 seconds When the remote controller is left untouched for 60 seconds it also returns to the normal mode 3 Not all the error codes are displayed When you cannot find the error code try the check method 2 Refer to page 255 No Code No Code No Code 1 00 13 C7 25 UA 2 U4 14 A3 26 UH 3 L5 15 H8 27 P4 4 E6 16 H9 28 L3 5 H6 17 C9 29 L4 6 H0 18 C4 30 H7 7 A6 19 C5 31 U2 8 E7...

Page 267: ...utton at the same time 5C is displayed on the LCD 2 Select 5C service check with the Temp or button 3 Press the Mode button to enter the service check mode The left side number blinks 4 Press the Temp or button and change the number until you hear the two consecutive beeps or the long beep R11669 R11821 R11672 R11670 R11671 ...

Page 268: ...nks 7 Press the Temp or button and change the number until you hear the long beep 8 Diagnose by the sound beep The left side number does not correspond with the error code two consecutive beeps The left side number corresponds with the error code but the right side number does not long beep Both the left side and right side numbers correspond with the error code 9 Determine the error code The numb...

Page 269: ... beeps indicate non corresponding codes 2 To return to the normal mode hold the timer cancel button down for 5 seconds When the remote controller is left untouched for 60 seconds it also returns to the normal mode 3 Not all the error codes are displayed When you cannot find the error code try the check method 2 Refer to page 258 No Code No Code No Code 1 00 13 C7 25 UA 2 U4 14 A3 26 UH 3 L5 15 H8 ...

Page 270: ...beep 3 Diagnose by the sound beep The left side number does not correspond with the error code two consecutive beeps The left side number corresponds with the error code but the right side number does not long beep Both the left side and right side numbers correspond with the error code The numbers indicated when you hear the long beep are the error code Error codes and description Refer to page 2...

Page 271: ...g beep Both the left side and right side numbers correspond with the error code 7 Determine the error code The numbers indicated when you hear the long beep are the error code Error codes and description Refer to page 267 8 Press the MODE button to exit from the diagnosis mode The display means the trial operation mode Refer to page 408 for trial operation 9 Press the ON OFF button twice to return...

Page 272: ...utive beeps indicate non corresponding codes 2 To return to the normal mode hold the timer cancel button down for 5 seconds When the remote controller is left untouched for 60 seconds it also returns to the normal mode 3 Not all the error codes are displayed When you cannot find the error code try the check method 2 Refer to page 261 Timer cancel button R14555 ARC433 Series No Code No Code No Code...

Page 273: ...the long beep 3 Diagnose by the sound beep The left side number does not correspond with the error code two consecutive beeps The left side number corresponds with the error code but the right side number does not long beep Both the left side and right side numbers correspond with the error code The numbers indicated when you hear the long beep are the error code Error codes and description Refer ...

Page 274: ...g beep Both the left side and right side numbers correspond with the error code 7 Determine the error code The numbers indicated when you hear the long beep are the error code Error codes and description Refer to page 267 8 Press the MODE button to exit from the diagnosis mode The display means the trial operation mode Refer to page 408 for trial operation 9 Press the ON OFF button twice to return...

Page 275: ...TION button for more than 4 seconds Field setting mode Service mode Normal mode Test operation mode Inspection mode Press the INSPECTION TEST OPERATION button once Press the INSPECTION TEST OPERATION button for more than 4 seconds Press the INSPECTION TEST OPERATION button once or leave the remote controller untouched for 30 minutes Indoor unit settings can be made z Filter cleaning sign time z Ot...

Page 276: ...Setting status list Clock setting Language changeover Basic Screen Operation mode changeover Fan speed control Menu display Confirmation of each setting On Off Cancel Operation lamp Field Setting Menu Test operation ON OFF Register Service Contract Field setting list Group No setting Indoor unit AIRNET No set Outdoor unit AIRNET No set Error record Indoor status display Outdoor status display Fan ...

Page 277: ... and malfunction contents Note 1 When you press the INSPECTION TEST OPERATION button the inspection display blinks 2 While in the inspection mode press the ON OFF button for 5 seconds or more to clear the failure history indication In this case the error code blinks twice and then changes to 00 Normal the UNIT No changes to 0 and the operation mode automatically switches from the inspection mode t...

Page 278: ...isplay Abnormal shutdown The system stops operating The operation lamp green starts to blink The message Error Press Menu Button appears and blinks at the bottom of the screen Warning The system continues its operation The operation lamp green remains on The message Warning Press Menu Button appears and blinks at the bottom of the screen Press the Menu Enter button to check the error code Take the...

Page 279: ...FVXG series only 278 C4 Indoor heat exchanger thermistor or related abnormality 280 C7 Front panel open close fault FTXG series only 281 C9 Room temperature thermistor or related abnormality 280 CE Radiant panel thermistor or related abnormality FVXG series only 280 U4 Signal transmission error between indoor unit and outdoor unit 282 UA Unspecified voltage between indoor unit and outdoor unit 283...

Page 280: ...ck for the connections of the connector X12A on the panel PCB and the connectors X18A and X19A on the sensor PCBs AH 05 Dust collection sign error when the self cleaning decoration panel is mounted Check for clogging with dust at the dust collection port as well as in the brush unit S shaped pipe and dust box Furthermore check for any stains of the light receiving and emitting parts of the infrare...

Page 281: ...nit 301 UH Anti icing function in other rooms 301 j h h i i h U0 Refrigerant shortage 296 j i h h i h U2 Low voltage detection or over voltage detection 298 j h i i i h U7 Signal transmission error on outdoor unit PCB 300 j i h i i h A5 Anti icing function 302 j i i i h h E1 Outdoor unit PCB abnormality 304 j i h i h h E5 OL activation compressor overload 305 j h i i h h E6 Compressor lock 306 j i...

Page 282: ...5 1 Indoor Unit PCB Abnormality Remote Controller Display A1 Method of Malfunction Detection The system checks if the circuit works properly within the microcomputer of the indoor unit Malfunction Decision Conditions The system cannot set the internal settings Supposed Causes Wrong models interconnected Defective indoor unit PCB Disconnection of connector Reduction of power supply voltage ...

Page 283: ... repeats Error repeats YES NO NO YES NO NO YES R15310 Caution To secure the connection once disconnect the connector and then reconnect it YES NO YES NO YES NO YES Match the compatible models Correct the power supply Replace the indoor unit PCB Completed Completed Correct the power supply Replace the indoor unit PCB Completed Be sure to turn off the power switch before connecting or disconnecting ...

Page 284: ...or Heating peak cut control During heating operation the temperature detected by the indoor heat exchanger thermistor is used for the heating peak cut control operation halt outdoor fan stop etc Malfunction Decision Conditions Freeze up protection control During cooling operation the indoor heat exchanger temperature is below 0 C Heating peak cut control During heating operation the indoor heat ex...

Page 285: ...Is there any short circuit Is it very dirty Is it very dirty Check the air passage Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged NO NO NO Check No 01 Check the indoor heat exchanger thermistor YES YES R15715 YES YES NO Caution Provide sufficient air passage Clean the air filter Clean the indoor heat exchanger Replace the indoor unit PCB ...

Page 286: ...ing fan motor operation is used to determine abnormal fan motor operation Malfunction Decision Conditions The detected rotation speed does not reach the demanded rotation speed of the target tap and is less than 50 of the maximum fan motor rotation speed Supposed Causes Disconnection of connector Foreign matters stuck in the fan Layer short inside the fan motor winding Breaking of wire inside the ...

Page 287: ...ors or parts may be damaged Check No 02 Check the output of the fan motor connector R14970 NO YES YES NO YES NO Replace the indoor fan motor Replace the indoor unit PCB Replace the indoor unit PCB Replace the indoor fan motor Replace the indoor fan motor and the indoor unit PCB Turn off the power supply and rotate the fan by hand Does the fan rotate smoothly Turn the power on and start operation D...

Page 288: ... Resistance OK Turn the power on again Check No 03 Check the motor control voltage Is the motor control voltage 15 VDC generated Check No 03 Check the indoor unit PCB for rotation pulse Is the rotation pulse generated NO YES YES YES NO NO To secure the connection once disconnect the connector and then reconnect it Correct the connection Remove the foreign matters Replace the indoor fan motor Repla...

Page 289: ...door unit PCB Troubleshooting Check No 04 Refer to P 327 NO NO NO NO NO NO YES YES YES YES YES YES R16009 Caution Replace the fan motor or the indoor unit PCB Replace the fan motor Replace the indoor unit PCB Replace the capacitor Replace the indoor unit PCB Replace the fan motor Replace the fan motor Replace the indoor unit PCB Be sure to turn off the power switch before connecting or disconnecti...

Page 290: ...nsion valve is open due to malfunction and heating or RADIANT operation is conducted in the other room s the refrigerant flows into the radiant panel and the radiant panel temperature rises Freeze up protection control The temperature detected by the radiant panel thermistors is used to prevent the indoor unit from freezing during cooling operation Malfunction Decision Conditions Radiant panel tem...

Page 291: ...to the thermistor characteristic chart Is there any short circuit YES Clean the indoor heat exchanger Is it very dirty YES Clean the air filter Is it very dirty NO Completed Error repeats Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged Check No 06 Check the indoor electronic expansion valve coil YES NO Start operation within the specified ...

Page 292: ...during compressor operation Supposed Causes Disconnection of connector Defective thermistor Defective indoor unit PCB Troubleshooting Check No 01 Refer to P 325 C4 Indoor heat exchanger thermistor C9 Room temperature thermistor CE Radiant panel thermistor FVXG series only YES R15717 NO YES NO Caution Correct the connection Replace the thermistor Replace the indoor unit PCB Replace the indoor unit ...

Page 293: ...2 Remove the front panel 3 Turn on the power Wait until the initialization finishes 4 Operate the unit by the indoor unit ON OFF button YES YES YES YES NO NO NO NO Replace the harness and reduction motor Replace the assembly of the front panel mechanism Check the movement of the right and left separately by hand Replace the assembly of the front panel mechanism It is supposed such as deformation o...

Page 294: ...door unit PCB Disturbed power supply waveform Troubleshooting Check No 11 Refer to P 328 Check the voltage of the indoor unit outdoor unit connection wires between No 1 and No 3 and between No 2 and No 3 Check No 11 Check the power supply waveform YES YES Replace the indoor unit PCB Locate the cause of the disturbance of the power supply waveform and correct it NO R15782 NO YES YES NO NO Caution C...

Page 295: ...g models interconnected Wrong wiring of connecting wires Wrong indoor unit PCB or outdoor unit PCB mounted Defective indoor unit PCB Defective outdoor unit PCB Troubleshooting R11707 Caution NO YES YES YES NO NO Check the code numbers 2P01234 for example of the indoor and outdoor unit PCB with the Parts List Match the compatible models Change for the correct PCB Replace the indoor unit PCB or the ...

Page 296: ...d Only Memory A memory chip that holds its content without power It can be erased either within the computer or externally and usually requires more voltage for erasure than the common 5 volts used in logic circuits It functions like non volatile RAM but writing to EEPROM is slower than writing to RAM Supposed Causes Defective indoor unit PCB Troubleshooting Caution Be sure to turn off the power s...

Page 297: ... Method of Malfunction Detection The float switch detects error Malfunction Decision Conditions When the water level reaches its upper limit and when the float switch turns OFF Supposed Causes Defective drain pump Improper drain piping work Clogged drain piping Defective float switch Defective indoor unit PCB Defective short circuit connector X15A on indoor unit PCB ...

Page 298: ...short circuit connector NO Connect the short circuit connector NO YES YES Replace the indoor unit PCB YES NO YES Is the drain pump connected to the indoor unit PCB Is the unit a ceiling suspended type NO YES NO Is the drain water level abnormally high YES YES Is the float switch connected to X15A NO Does the drain pump work after restarting operation Set to emergency and check the voltage of the c...

Page 299: ... output voltage to the fan is at its maximum Supposed Causes Defective indoor fan motor Broken or disconnected wire Defective contact Defective indoor unit PCB Troubleshooting FCQC FFQ FDBQ FBQ Series Caution Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged Connect the wiring and turn on again YES YES NO NO Replace the indoor unit PCB Repla...

Page 300: ...n Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged Replace the indoor unit PCB NO R12862 About 12 VDC YES Connect them correctly YES NO Check the connections of X20A and X26A Disconnect X26A and turn the power on Check the voltage between the pins 1 and 3 of X26A Check the indoor unit fan motor and motor wiring Are X20A or X26A or both prop...

Page 301: ...cting or disconnecting connectors or parts may be damaged Connect the connectors correctly Replace the indoor unit PCB Replace the swing motor R17251 NO Replace the indoor unit PCB YES YES NO Connect the connector correctly NO YES Does the swing motor swing Are the connectors correctly connected to X29A and X14A on the PCB Is the relay connector of the limit switch correctly connected YES YES Turn...

Page 302: ...ain up height and the horizontal pipe length exceed the specifications Clogged water drain system clogged drain pump or faulty float switch Replace the indoor unit PCB Check if the drain up height and the horizontal pipe length exceed the specifications R16022 Are the float switch and the drain pipe normal Is the water drain system normal NO YES YES NO NO NO YES YES Check the water drain system Ch...

Page 303: ...ermistors should be checked prior to changing the indoor unit PCB To check the thermistors proceed as follows C4 Indoor heat exchanger thermistor R2T R3T C9 Room temperature thermistor R1T Check No 01 Refer to P 325 Step Action 1 Disconnect the thermistor from the indoor unit PCB 2 Read the temperature and the resistance value 3 Check if the measured values correspond with the values in the table ...

Page 304: ...ons When the remote controller thermistor becomes disconnected or shorted while the unit is running Supposed Causes Defective thermistor Broken wire Troubleshooting Note To delete the record of error codes press the ON OFF button for 4 seconds or more while the error code is displayed in the inspection mode Replace the remote controller External factor other than equipment malfunction for example ...

Page 305: ... noise Troubleshooting Normal Normal There is possibility of malfunction caused by noise Check the surrounding area and turn on again Set one remote controller to SUB turn the power supply off once and then back on Replace the indoor unit PCB There is possibility of malfunction caused by noise Check the surrounding area and turn on again NO YES YES Return to normal Return to normal NO YES YES YES ...

Page 306: ...d period Supposed Causes Remote controller is set to SUB when using 1 remote controller Connection of 2 sub remote controllers when using 2 remote controllers Defective remote controller PCB Troubleshooting Is SS1 of remote controller PCB set to SUB Turn the power off and then back on If a malfunction occurs replace the remote controller PCB Set one remote controller to MAIN turn the power supply ...

Page 307: ...g Check again YES YES NO NO Connect the remote controller correctly YES NO NO YES Remove the jumper NO YES Set the field setting correctly YES NO NO NO YES YES R17253 Is the remote controller connected to one or more indoor units Is the remote controller wiring jumped between indoor units Is the field setting correct Do the service monitor LED HAP on all indoor unit PCB blink Are the wirings betwe...

Page 308: ...sion Conditions Refrigerant shortage detection I The following conditions continue for 7 minutes DC current A Compressor output frequency B Output frequency C Refrigerant shortage detection II The following conditions continue for 80 seconds Opening of the outdoor electronic expansion valve D Discharge pipe temperature E target discharge pipe temperature F If the error repeats the system is shut d...

Page 309: ... Check No 12 Outdoor electronic expansion valve functioning Replace the thermistor s in position Open the stop valve Repair the pipe flare or replace the union Check the harness for loosening Correct it as required Also replace the cracked pipe Check the pipes for improper contact Correct them as required Also replace the cracked pipe Replace the outdoor electronic expansion valve Replace the defe...

Page 310: ...is no zero cross detection in approximately 10 seconds Outdoor Unit Low voltage detection The voltage detected by the DC voltage detection circuit is below 150 V for 0 1 second If the error repeats the system is shut down Reset condition Continuous run for about 60 minutes without any other error Over voltage detection An over voltage signal is fed from the over voltage detection circuit to the mi...

Page 311: ...nectors or parts may be damaged NO NO YES NO YES YES Reconnect the harness Check the power supply voltage Check the connection of the compressor harness Disturbance factors Noise Power supply distortion Repeat a few times Precaution before turning on the power again Make sure the power has been off for at least 30 seconds Replace the indoor unit PCB Turn on the power again System restarted Error a...

Page 312: ...ality is determined when the data sent from the PM1 can not be received for 9 seconds The error counter is reset when the data from the PM1 can be successfully received Supposed Causes Defective outdoor unit PCB Troubleshooting R7185 Caution NO YES Turn off the power and turn it on again Replace the outdoor unit PCB The cause can be an external factor other than the malfunction Observe the operati...

Page 313: ...ternal voltages Mismatching of indoor and outdoor units Supposed Causes Anti icing function in other rooms Wrong models interconnected Wrong indoor unit PCB or outdoor unit PCB mounted Troubleshooting Note Refer to Anti icing function on page 302 for detail R16018 Caution NO YES NO YES NO YES Check the model combination Check the combination of all the models being connected The anti icing functio...

Page 314: ...thermistor that are located in a shut down room Malfunction Decision Conditions In cooling operation the both conditions A and B are met for 5 minutes A Room temperature Indoor heat exchanger temperature 10 C B Indoor heat exchanger temperature 1 C If the error repeats the system is shut down Reset condition Continuous run for about 60 minutes without any other error Supposed Causes Wrong wiring o...

Page 315: ...ve or coil Replace the outdoor heat exchanger thermistor Replace the room temperature thermistor Replace the room temperature thermistor or indoor heat exchanger thermistor Do the vacuum drying Replace the indoor unit PCB and then start the wiring error check function Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged Check the wiring and pip...

Page 316: ...microcomputer is in abnormal running order Supposed Causes Defective outdoor unit PCB Noise Momentary fall of voltage Momentary power failure Troubleshooting R7183 Caution Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged YES NO NO YES Replace the outdoor unit PCB Carry out grounding work The cause can be external factors other than malfunct...

Page 317: ...xed in refrigerant Defective stop valve Troubleshooting Check No 01 Refer to P 325 Check No 12 Refer to P 329 Check No 13 Refer to P 330 Check No 14 Refer to P 330 R14438 Caution YES NG Discharge pipe thermistor NO OK OK NG NG OK NG OK Refrigerant shortage Water mixed Stop valve Insert the thermistor in position Replace the discharge pipe thermistor Replace the outdoor electronic expansion valve o...

Page 318: ...arness disconnected Troubleshooting Check No 15 Refer to P 331 Turn off the power Disconnect the harnesses U V and W R14439 Caution NO YES YES NO NO YES Check No 15 Check with the inverter checker Turn off the power and reconnect the harnesses Turn on the power again and restart the system Precaution before turning on the power again Make sure the power has been off for at least 30 seconds Correct...

Page 319: ...er error Supposed Causes Disconnection of the fan motor Foreign matter stuck in the fan Defective fan motor Defective outdoor unit PCB Troubleshooting Check No 16 Refer to P 332 R15890 Caution YES YES NO YES NO NO YES NO Turn on the power Rotate the fan Check No 16 Check the rotation pulse input on the outdoor unit PCB Turn off the power and reconnect the connector Remove the foreign matter Replac...

Page 320: ...33 Check No 18 Refer to P 333 Caution Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged R15325 NO YES YES NO Check No 17 Check the installation condition Start operation and measure the input current Turn off the power and disconnect the harnesses U V and W Check No 15 Check with the inverter checker Turn off the power and reconnect the harn...

Page 321: ... Defective outdoor electronic expansion valve or coil Refrigerant shortage Defective four way valve Water mixed in refrigerant Defective stop valve Defective outdoor unit PCB Troubleshooting Check No 01 Refer to P 325 Check No 12 Refer to P 329 Check No 14 Refer to P 330 A C B C 40 50 52 58 class 110 95 68 75 80 90 class 120 107 R15286 Caution NG OK OK OK NG NG Discharge pipe thermistor Outdoor he...

Page 322: ...e outdoor heat exchanger thermistor Defective outdoor unit PCB Troubleshooting Check No 01 Refer to P 325 Check No 12 Refer to P 329 Check No 17 Refer to P 333 Check No 18 Refer to P 333 Check No 19 Refer to P 334 R14413 Caution Replace the fan motor Reconnect the connector or fan motor lead wires Replace the stop valve Replace the outdoor heat exchanger thermistor Replace the outdoor unit PCB Rep...

Page 323: ... Fault condition is identified by the compressor current which is detected right after the compressor startup If the error repeats the system is shut down Reset condition Continuous run for about 5 minutes without any other error Malfunction Decision Conditions The detected value of the supply voltage and the DC voltage is obviously low or high The compressor current does not run when the compress...

Page 324: ...onnect the reactor from the outdoor unit PCB and measure the resistance value between reactor terminals with tester Disconnect the compressor relay harness from the outdoor unit PCB and measure the resistance value between each terminal with a tester Caution Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged Turn off the power Reactor connect...

Page 325: ...tected by checking the compressor running condition through the position detection circuit Malfunction Decision Conditions If the error repeats the system is shut down Reset condition Continuous run for about 5 minutes without any other error Supposed Causes Disconnection of the compressor relay cable Defective compressor Defective outdoor unit PCB Start up failure caused by the closed stop valve ...

Page 326: ...ted R15892 NO NO YES NO YES YES Check No 15 Check with the inverter checker Turn off the power Disconnect the harnesses U V and W Turn on the power Check the electrolytic capacitor voltage Electrical components or compressor harnesses connected as specified Replace the outdoor unit PCB Replace the compressor Correct the power supply or replace the outdoor unit PCB Reconnect the electrical componen...

Page 327: ...ssor running frequency and CT detected input current Malfunction Decision Conditions The compressor running frequency is more than A Hz and input current is less than B A If the error repeats the system is shut down Reset condition Continuous run for about 60 minutes without any other error Supposed Causes Defective power module Broken or disconnected wiring Defective reactor Defective outdoor uni...

Page 328: ... reconnect the harnesses Then turn on the power again and restart operation Replace the outdoor unit PCB Replace the outdoor unit PCB Replace the outdoor unit PCB Check the supply voltage Replace the compressor Capacitor charged when the indoor unit or outdoor unit main relay turns on Rising with increasing frequency Correct the power supply or replace the outdoor unit PCB Inverter checker Part No...

Page 329: ...V with the power on J3 error is judged if the discharge pipe temperature is lower than the heat exchanger temperature The system is shut down if all the units are judged as the J8 error Supposed Causes Disconnection of the connector for the thermistor Defective thermistor corresponding to the error code Defective heat exchanger thermistor in the case of J3 error outdoor heat exchanger thermistor i...

Page 330: ...ce the defective thermistor s Outdoor temperature thermistor Discharge pipe thermistor Outdoor heat exchanger thermistor Liquid pipe thermistor Gas pipe thermistor Indoor heat exchanger thermistor Cooling Outdoor heat exchanger thermistor Heating Indoor heat exchanger thermistor Replace the following thermistor Replace the outdoor unit PCB Error displayed again on remote controller Indoor heat exc...

Page 331: ...istor with the compressor off Malfunction Decision Conditions With the compressor off the radiation fin temperature is above A C The error is cleared when the temperature drops below B C To cool the electrical components the outdoor fan starts when the radiation fin temperature rises above C C and stops when it drops below B C Supposed Causes Defective outdoor fan motor Short circuit Defective rad...

Page 332: ...dirty OK NO YES Turn off the power and turn it on again Check No 17 Check the installation condition Check the radiation fin temperature Replace the outdoor unit PCB Replace the fan motor Correct the connectors and fan motor lead wire Replace the outdoor unit PCB Clean up the radiation fin Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged Er...

Page 333: ...ions The radiation fin temperature with the compressor on is above A C The error is cleared when the temperature drops below B C If the error repeats the system is shut down Reset condition Continuous run for about 60 minutes without any other error Supposed Causes Defective outdoor fan motor Short circuit Defective radiation fin thermistor Disconnection of connector Defective outdoor unit PCB Sil...

Page 334: ...No 17 Check the installation condition NO YES YES Above A C Radiation fin dirty Check No 19 Check the outdoor fan or related Error displayed again Has the PCB been replaced Check if applied properly on the radiation fin If not apply the silicon grease See Note Silicon grease Part No 1172698 Replace the outdoor unit PCB Clean up the radiation fin Be sure to turn off the power switch before connecti...

Page 335: ...ditions A position signal error occurs while the compressor is running A speed error occurs while the compressor is running An output overcurrent signal is fed from the output overcurrent detection circuit to the microcomputer If the error repeats the system is shut down Reset condition Continuous run for about 5 minutes without any other error Supposed Causes Poor installation condition Closed st...

Page 336: ...ut overcurrent may result from wrong internal wiring If the system is interrupted by an output overcurrent after the wires have been disconnected and reconnected for part replacement check the wiring again Keep on using Check the connectors and other components Monitor the power supply voltage discharge and suction pressures and other factors for a long term Possible causes Momentary fall of power...

Page 337: ... indoor heat exchanger thermistor is soldered on the PCB remove the thermistor and measure the resistance The data is for reference purpose only Thermistor temperature C Resistance kΩ Room temperature thermistor for FTXS K and CTXS K series Other thermistors 20 70 3 197 8 15 56 1 148 2 10 44 1 112 1 5 34 9 85 60 0 28 2 65 93 5 22 3 51 14 10 18 1 39 99 15 14 8 31 52 20 12 2 25 02 25 10 0 20 00 30 8...

Page 338: ...tween the pins 12 9 and between 9 6 Motor control voltage check 1 Check the connector for connection 2 Check the motor control voltage is generated between the pins 2 3 Rotation pulse check 1 Check the connector for connection 2 Turn the power on and stop the operation 3 Check if the Hall IC generates the rotation pulse 4 times when the fan motor is manually rotated once between the pins 1 3 7 6 5...

Page 339: ... check the indoor electronic expansion valve coil EV 1 Check to see if the EV connector is correctly connected to the PCB 2 Turn the power off and on again and check to see if the EV generate latching sound 3 If the EV does not generate latching sound in the above step 2 disconnect the connector and check the continuity using a tester 4 Check the continuity between the pins 1 6 2 6 3 6 and 4 6 If ...

Page 340: ...sure the power supply waveform between No 1 and No 2 on the terminal board and check the waveform disturbance Check to see if the power supply waveform is a sine wave Fig 1 Check to see if there is waveform disturbance near the zero cross sections circled in Fig 2 Fig 1 Fig 2 R1736 R1444 ...

Page 341: ...note that the latching sound varies depending on the valve type If the system keeps operating with a defective outdoor electronic expansion valve the following problem may occur Valveopening position Possible problem Check method Open Cooling Flowing noise of refrigerant in the unit which is not in operation Water leakage at the unit which is not in operation Operation half due to anti icing funct...

Page 342: ...Replace the four way valve coil Replace the four way valve Disconnect the four way valve coil from the connector and check the continuity S80 voltage at 220 240 VAC with compressor on Fig 1 Four way valve coil resistance at 1000 2000 Ω R11904 Fig 1 Voltage at S80 220 240 VAC Time Compressor ON Refrigerant system check Is the discharge pipe thermistor disconnected from the holder Check for refriger...

Page 343: ...oltage of the built in smoothing electrolytic capacitor drops to 10 VDC or below before carrying out the service work Reference If the terminals of the compressor are not FASTON terminals difficult to remove the wire on the terminals it is possible to connect wires available on site to the outdoor unit from output side of PCB Do not connect them to the compressor at the same time otherwise it may ...

Page 344: ...herwise the terminals may be burned due to loosening 8 10 Rotation Pulse Check on the Outdoor Unit PCB Check No 16 Outdoor fan motor Make sure that the voltage of 320 30 V is applied 1 Set operation off and power off Disconnect the connector S70 2 Check that the voltage between the pins 4 7 is 320 VDC 3 Check that the control voltage between the pins 3 4 is 15 VDC 4 Check that the rotation command...

Page 345: ...irty Change the installation location or direction Change the installation location or direction Clean the outdoor heat exchanger Change the installation location or direction Check the outdoor temperature The outdoor temperature should be within operation range R15738 Not dirty YES YES Dirty NO NO NO YES Is the air filter or indoor outdoor heat exchanger dirty Replace the compressor Open the stop...

Page 346: ...ircuit With the circuit breaker still on measure the voltage according to the drawing of the model in question Be careful never to touch any live parts R15128 YES YES NO NO Check the outdoor unit fan system Outdoor unit fan running Outdoor unit fan system functioning Go to Check No 16 Reconnect the connector Fan motor lead wire connector disconnected R12869 Multimeter DC voltage range ...

Page 347: ...e below to measure resistance between the terminals of the power module and the terminals of the compressor with a multi tester Evaluate the measurement results referring to the following table The illustration is for 40 50 52 58 class as representative Negative terminal of tester positive terminal for digital tester Power module UVW Power module UVW Positive terminal of tester negative terminal f...

Page 348: ...54 1 5 Removal of Sound Blankets 356 1 6 Removal of Coils Thermistors 360 1 7 Removal of Distributor 363 1 8 Removal of Four Way Valve 364 1 9 Removal of Compressor 365 2 Outdoor Unit 80 90 Class 367 2 1 Removal of Outer Panels 367 2 2 Removal of Electrical Box 382 2 3 Removal of PCBs 388 2 4 Removal of Fan Motor 392 2 5 Removal of Coils Thermistors 393 2 6 Removal of Sound Blankets 399 2 7 Remova...

Page 349: ...tive 1 1 Removal of Outer Panels Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Appearance features Take care not to cut your finger by the fins of the heat exchanger 2 Remove the 4 screws 2 on both sides of the top panel R5494 R12898 Top panel R12899 ...

Page 350: ...4 Remove the screw of the shield plate 5 Slide the shield plate to the left to unfasten the hooks and remove the shield plate 6 Unfasten the upper 2 hooks Align the position of hole of the upper hook to pull the front panel out Step Procedure Points Front panel R17165 Shield plate R11204 R5499 R5500 ...

Page 351: ...lass Removal Procedure 339 7 Lift the front panel up to unfasten the left side hooks The front panel has 3 hooks on the left 8 Unfasten the right side hook and remove the front panel Step Procedure Points R5501 Hook R12901 R5503 Hook ...

Page 352: ...e the 4 screws of the discharge grille 10 11 Remove the 2 screws of the stop valve cover Slide the stop valve cover downward and remove it When reassembling make sure to fit the 5 hooks Step Procedure Points Discharge grille R12902 R11206 Stop valve cover R5506 R5508 ...

Page 353: ...sconnect the harnesses The illustrations are for 3 room models as representative 4 room models also have D port 1 Layout of the connecting wires The wires are fixed to the terminal board with screws Electrical box Electronic expansion valve coil Service port A port B port C port R11175 Liquid pipe Liquid stop valve Gas stop valve Gas pipe R11176 R17256 Wiring fixture C port A port B port Service m...

Page 354: ...at the mark of the electrical box cover 4 Lift the electrical box cover up and remove it 5 Detach the clamp and disconnect the connector for the fan motor S70 When reassembling insert the clamp into the either hole as below Step Procedure Points R5512 Fixing tape R5513 R5514 R17166 S70 For the ferrite core of fan motor harness R17167 ...

Page 355: ...pansion valve coils S20 white room A S21 red room B S22 blue room C 4 room models also have S23 yellow for room D 8 Pull out the clamp When reassembling insert the clamp of the electronic expansion valve coil ASSY into either hole as below Step Procedure Points Fan motor lead wire R17168 R5518 R5519 S20 S21 S22 R5520 Electronic expansion valve coil R17170 ...

Page 356: ...r for the overload protector S40 10 The wire harness for the compressor is attached to the partition plate by the clamp 11 Pull out the clamp with pliers 12 Disconnect the relay connector of the compressor Step Procedure Points R5521 S40 Clamp R12904 Partition plate Clamp R6423 R5522 ...

Page 357: ...pe thermistors S93 Liquid pipe thermistors When reassembling insert each clamp of the thermistor harnesses into the holes as below 14 Disconnect the connector for the four way valve coil S80 The cooling only models have no harness for S80 Step Procedure Points R5523 S90 S92 S93 R5524 R17169 S90 S92 S93 R5525 R5526 S80 ...

Page 358: ... the thermistor lead wire 2 Remove the electrical box 1 Remove the 2 screws of the earth wires 2 Remove the screws on the terminal board and disconnect all the connecting wires and power supply wire Step Procedure Points R5527 Thermistor lead wire R17257 Fixing position for the thermistor harness When reassembling insert the clamp into the small hole R11178 R11179 ...

Page 359: ...emoval Procedure 347 3 Remove the 2 screws and remove the wiring fixture 4 Detach the outdoor temperature thermistor 5 Remove the screw on the right side of the electrical box Step Procedure Points R11180 R11181 Wiring fixture R5533 R17258 ...

Page 360: ...Outdoor Unit 40 75 Class SiBE121135 348 Removal Procedure 6 Remove the screw of the electrical box 7 Lift up and remove the electrical box Step Procedure Points R17259 R5536 ...

Page 361: ... turning off all power supplies before disassembling work Step Procedure Points 1 Remove the service monitor PCB 1 External appearance 2 Remove the screw of the terminal board and open it 3 Disconnect the connectors S52 S102 from the service monitor PCB Service monitor PCB Terminal board R5537 R5538 R5539 R5540 Service monitor PCB S102 S52 ...

Page 362: ...0 for detail 2 Remove the main PCB AC1 AC2 for power supply S10 for transmission 1 Disconnect the connectors for the terminal board on the right side 2 Disconnect the 2 connectors for the reactor on the left side 3 Remove the 3 screws of the main PCB Step Procedure Points R5541 R5542 AC1 brown AC2 blue S10 R5543 R5544 HR2 HR1 Reactor Main PCB R5545 ...

Page 363: ... left 5 Release the relay harness for the compressor from the hook 6 Lift up the main PCB and remove it In working be careful not to break the main PCB with the excessive force because the main PCB and the radiation fin are adhered to one another Step Procedure Points R5547 R5548 R5549 R5550 Relay harness for compressor Earth wire ...

Page 364: ...ove the 2 screws of the radiation fin When reassembling make sure to use the silicon grease Silicon grease Part No 1172698 8 Remove the 3 screws of the reactor Step Procedure Points S70 S40 S20 S21 S22 S80 S90 S92 S93 R17260 Clamp for reactor harness R11207 R5553 Radiation fin Reactor R11208 ...

Page 365: ...cedure 353 3 Remove the terminal board 1 Disconnect all the wire harnesses from the back of the terminal board 2 Unfasten the hook of the electrical box and remove the terminal board Step Procedure Points R12907 Terminal board back R5556 R5557 R5558 ...

Page 366: ...emove the 2 screws of the fan motor fixing plate Preparation Remove the outer panels and plates Remove the electrical box 2 Remove the fan motor fixing plate When reassembling fit the lower hooks Nut size M6 When reassembling align the mark of the outdoor fan with the D cut section of the motor shaft 3 Remove the nut and remove the outdoor fan Fan motor fixing plate R12908 R5561 R5564 10 mm R12236...

Page 367: ...se the fan motor lead wire When reassembling put the fan motor lead wire through the back of the fan motor so as not to be entangled with the outdoor fan 5 Remove the 4 screws and remove the fan motor Step Procedure Points Hook R17261 R17262 Lead wire Outdoor fan R12215 R12913 Fan motor ...

Page 368: ... all power supplies before disassembling work Step Procedure Points 1 Remove the right side panel Preparation Remove the outer panels and plates Remove the electrical box 1 Remove the 3 screws of the right side panel 2 Remove the 2 screws on the back 3 Remove the protection rubber There is a hook on the back R12915 Right side panel R5571 Protection rubber R5572 ...

Page 369: ... Procedure 357 4 Lift up and remove the right side panel 2 Remove the partition plate 1 Remove the 2 screws of the partition plate 2 Detach the clamp of the relay harness for the compressor Step Procedure Points R5573 R5575 Partition plate R5576 ...

Page 370: ...tition plate 3 Remove the sound blankets Since the piping ports on the sound blanket are torn easily remove the blanket carefully The shape of the sound blankets differs depending on the model 1 Remove the sound blanket top upper 2 Remove the sound blanket top inner Step Procedure Points R5577 R5580 Sound blanket top upper R5579 R5582 Sound blanket top inner ...

Page 371: ...utdoor Unit 40 75 Class Removal Procedure 359 3 Open the sound blanket outer and pull it out 4 Open the sound blanket inner and pull it out Step Procedure Points Sound blanket outer R5583 R5584 Sound blanket inner ...

Page 372: ... off all power supplies before disassembling work Step Procedure Points 1 Remove the electronic expansion valve coils 1 Pull out the electronic expansion valve coils 2 Remove the four way valve coil Cooling only models have no four way valve coil 1 Remove the screw to remove the four way valve coil Electronic expansion valve coil R5588 R5589 Four way valve coil ...

Page 373: ...iquid pipe thermistors 2 Pull out the gas pipe thermistors 3 Cut the clamp Pull out the outdoor heat exchanger thermistor Be careful not to lose the clip The positions of the clamp and outdoor heat exchanger thermistor differ depending on the model Step Procedure Points Liquid pipe thermistor R11184 Gas pipe thermistor R5591 Outdoor heat exchanger thermistor R17171 Clamp Clip R5619 ...

Page 374: ...ipe thermistor When reassembling meet the edge of the thermistor and the fixture 5 Remove the assembly of thermistors Step Procedure Points R11185 Discharge pipe thermistor Clip Discharge pipe thermistor Outdoor heat exchanger thermistor Outdoor temperature thermistor Connector R5594 ...

Page 375: ...n of the oil inside the four way valve and the deterioration of the gaskets affected by heat Keep below 120 C For the sake of this wrap the four way valve with wet cloth and provide water so that the cloth does not dry In case of difficulty with gas brazing machine 1 Disconnect the brazed part where is easy to disconnect and restore 2 Cut pipes on the main unit with a tube cutter in order to make ...

Page 376: ... the piping by non oxidation brazing 2 It is required to prevent the carbonization of the oil inside the four way valve and the deterioration of the gaskets affected by heat Keep below 120 C For the sake of this wrap the four way valve with wet cloth and provide water so that the cloth does not dry In case of difficulty with gas brazing machine 1 Disconnect the brazed part where is easy to disconn...

Page 377: ...Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the terminal cover 2 Disconnect the compressor lead wires 3 Detach the overload protector R12914 Terminal cover V yellow U red W blue R5602 R12916 Overload protector R5604 ...

Page 378: ...ith wet cloth and provide water so that the cloth does not dry In case of difficulty with gas brazing machine 1 Disconnect the brazed part where is easy to disconnect and restore 2 Cut pipes on the main unit with a tube cutter in order to make it easy to disconnect 4 Remove the putty 5 Remove the 2 nuts Before working make sure that the refrigerant gas is empty in the circuit Be sure to apply nitr...

Page 379: ...uter Panels Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points Appearance features 1 Remove the suction grille The hooks are secured in the clearances of the outdoor heat exchanger fins 1 Unfasten the 2 hooks at the bottom first R6368 Hook Rear side R14612 Suction grille R6370 ...

Page 380: ... 2 Slide the suction grille downward to unfasten the 3 top hooks 3 Remove the suction grille 2 Remove the top panel 1 Remove the 4 screws on the back and the screw on the left side panel Step Procedure Points Hook R14613 R6372 Top panel Left side panel R6373 ...

Page 381: ...rocedure 369 2 Remove the 2 screws on the front and the screw on the right side panel 3 Lift the top panel and remove it 3 Remove the right side panel 1 Remove the 5 screws Step Procedure Points R6374 Right side panel R6375 R6376 Right side panel ...

Page 382: ...Outdoor Unit 80 90 Class SiBE121135 370 Removal Procedure 2 Slide the right side panel downward to unfasten the 2 hooks on the back side Step Procedure Points R6377 Hook R14614 Hook R14615 ...

Page 383: ...5 Outdoor Unit 80 90 Class Removal Procedure 371 3 Remove the right side panel 4 Remove the front panel 2 This screw is M5 16 1 Remove the 2 screws Step Procedure Points R10441 R10629 Front Panel 2 Front Panel 1 ...

Page 384: ...Outdoor Unit 80 90 Class SiBE121135 372 Removal Procedure 2 Slide the front panel 2 downward to unfasten the hook 3 Remove the front panel 2 Step Procedure Points R10374 R6383 R10375 ...

Page 385: ...5 Remove the front panel 1 Remove the discharge grille and outdoor fan first to remove the front panel 1 1 Remove the 4 screws on the discharge grille 2 Pull the bottom of the discharge grille Step Procedure Points R10376 Front Panel 1 Discharge grille R10377 ...

Page 386: ...downward to unfasten the 2 hooks at the top 4 Remove the discharge grille 5 Remove the nut and remove the outdoor fan Nut size M8 When reassembling align mark of the outdoor fan with D cut section of the motor shaft Step Procedure Points R17173 Hook R10380 R10381 Outdoor fan 13 mm R12301 ...

Page 387: ...Removal Procedure 375 6 Remove the 2 screws on the partition plate 1 7 Remove the screw at the bottom left of the front panel 1 8 Remove the screw at the bottom of the left side Step Procedure Points R10382 Partition plate 1 R10383 R6393 ...

Page 388: ...re 9 Remove the screw at the bottom of the back side 10 The front panel 1 has a hook Lift the front panel 1 11 Remove the front panel 1 Be sure to detach the front panel 1 carefully so as not to deform it Step Procedure Points R6394 R17174 Hook R10385 R6396 ...

Page 389: ...t 80 90 Class Removal Procedure 377 6 Remove the rear panel 1 Remove the screw on the partition plate 2 2 Slide the partition plate 2 to the left and remove it Step Procedure Points R11209 Rear panel Partition plate 2 R11211 ...

Page 390: ...al Procedure 3 Remove the 5 screws on the wire fixing plate upper 4 Remove the wire fixing plate upper 5 Remove the 3 screws on the wire fixing plate lower Step Procedure Points R11210 Wire fixing plate upper R11213 R11214 Wire fixing plate lower ...

Page 391: ...ixing plate lower 7 Pull out the holder of the outdoor temperature thermistor The holder is secured in the clearances of the outdoor heat exchanger fins 8 Release the thermistor wire from the groove Step Procedure Points R11215 R10388 Outdoor temperature thermistor Groove R10389 ...

Page 392: ...121135 380 Removal Procedure 9 Remove the 3 screws on the rear panel 10 Remove the screw on the bottom frame 11 Remove the screw on the stop valve mounting plate Step Procedure Points R10390 R10391 R10392 Stop valve mounting plate ...

Page 393: ...SiBE121135 Outdoor Unit 80 90 Class Removal Procedure 381 12 Lift the rear panel upward to unfasten the 2 hooks 13 Remove the rear panel Step Procedure Points Hook Hook R12918 R10394 ...

Page 394: ...or 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the 2 screws to detach the earth wires 2 Disconnect the connector for the fan motor S70 3 Release the fan motor lead wire When reassembling do not use these 2 hooks R10396 S70 R10397 R17268 Fan motor lead wire ...

Page 395: ...ctronic expansion valve coil S20 white room A S21 red room B S22 blue room C S23 yellow room D Pull out the clamp 5 room models also has S24 green for room E When reassembling insert each clamp into the small hole 6 Disconnect the connector for the liquid pipe thermistor S93 Pull out the clamp Step Procedure Points S80 Clamp R11187 A B C D Clamp R11188 For the electronic expansion valve coil S93 R...

Page 396: ... thermistors S90 Pull out the clamp When reassembling insert the clamp of the thermistor ASSY into the hole as below 9 The wire harness of the thermistor is hooked under the electrical box Unhook it and pull out the clamp Step Procedure Points S92 R10537 Clamp S92 R17267 S90 Clamp R10538 Thermistor ASSY R17142 Clamp Hook R6420 Fixing position for the thermistor harness When reassembling insert the...

Page 397: ...5 10 Disconnect the connector for the overload protector S40 11 The wire harness for the compressor is attached to the partition plate 1 by the clamp 12 Pull out the clamp with pliers Step Procedure Points S40 R10539 Clamp R12904 Partition plate Clamp R6423 ...

Page 398: ...dure 13 Disconnect the relay connector of the compressor 14 Remove the screw on the stop valve mounting plate 15 Remove the screw on the partition plate 1 Step Procedure Points R6469 R10395 Electrical box Stop valve mounting plate R6411 Partition plate 1 ...

Page 399: ...Unit 80 90 Class Removal Procedure 387 16 Slide the electrical box leftward to unfasten the hook on the right side of the electrical box 17 Lift up the electrical box and remove it Step Procedure Points R10401 Hook R10402 ...

Page 400: ...es or more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the main PCB 1 Remove the cover of the electrical box Release the 4 hooks The hooks are marked with 2 Remove the 3 screws 3 Unfasten the 4 hooks 4 Lift up the main PCB Hook Hook R14617 R6427 R10404 Main PCB R10405 R10406 ...

Page 401: ...R1 HR2 reactor AC1 AC2 terminal board power supply U V W compressor Refer to page 40 for detail 6 Remove the main PCB 2 Remove the reactor 1 Remove the screw 2 Remove the 3 screws and lift the reactor upward to remove it Step Procedure Points R10407 S10 S101 S51 W blue V yellow U red HR2 blue HR1 white AC2 blue AC1 brown R10408 R10409 Reactor R6434 ...

Page 402: ...e monitor PCB 1 Disconnect the connectors S52 S102 from the service monitor PCB 2 Slightly lift the top hook to detach 3 Unfasten the bottom hook and remove the service monitor PCB Refer to page 40 for detail Step Procedure Points R10410 S102 S52 Service monitor PCB R6436 R6437 ...

Page 403: ...121135 Outdoor Unit 80 90 Class Removal Procedure 391 4 Remove the terminal board 1 Remove the screw 2 Unfasten the hook 3 Remove the terminal board Step Procedure Points R10411 Terminal board R10412 R10413 ...

Page 404: ...ep Procedure Points 1 2 Remove the 2 lower screws of the fan motor Remove the 2 upper screws Be sure to remove the lower screws first If the upper screws are removed first the fan motor may tilt or fall because the center of its gravity is toward the front It may cause injuries 3 Remove the fan motor When reassembling be sure to place the wire harness lower R10414 R6442 2 1 R10542 Fan motor R6444 ...

Page 405: ...stors Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the electronic expansion valve coils 1 Pull out the electronic expansion valve coils Electronic expansion valve coil R10415 R6446 ...

Page 406: ...Outdoor Unit 80 90 Class SiBE121135 394 Removal Procedure 2 Remove the thermistors 1 Pull out the gas pipe thermistors Step Procedure Points Gas pipe thermistors R10416 R6448 Gas pipe thermistor ...

Page 407: ...rocedure 395 2 Peel off the putty and pull out the liquid pipe thermistors 3 Pull out the outdoor heat exchanger thermistor Step Procedure Points Liquid pipe thermistors R10417 R6450 Liquid pipe thermistor R10541 Outdoor heat exchanger thermistor ...

Page 408: ...4 Remove the clip from the outdoor heat exchanger thermistor Be careful not to lose the clip 5 Slightly open the sound blanket outer 6 Remove the sound blanket top upper Step Procedure Points R6452 Clip R10418 Sound blanket outer R10419 Sound blanket top upper ...

Page 409: ...t 80 90 Class Removal Procedure 397 7 Remove the discharge pipe thermistor 8 Remove the fixture 3 Remove the four way valve coil 1 Remove the screw Step Procedure Points R10420 Discharge pipe thermistor R10430 Fixture R10431 ...

Page 410: ...Outdoor Unit 80 90 Class SiBE121135 398 Removal Procedure 2 Remove the four way valve coil Step Procedure Points R10432 Four way valve coil ...

Page 411: ...es before disassembling work Step Procedure Points 1 Open the sound blanket outer 2 Remove the sound blanket top upper The sound blanket is fragile Carefully pass the blanket through the discharge pipe 3 Remove the screw from the partition plate and push the plate to the left slightly for easy work R10433 Sound blanket outer R10434 Sound blanket top upper R10435 Partition plate ...

Page 412: ... sound blanket is fragile Carefully pass the blanket through the discharge pipe 6 Open the sound blanket inner and pass it through the part of the mufflers The sound blanket is fragile Be careful of the notches of the compressor mount 3 locations Step Procedure Points R10436 Sound blanket outer R10437 Sound blanket top inner R10438 Mufflers Sound blanket inner ...

Page 413: ...SiBE121135 Outdoor Unit 80 90 Class Removal Procedure 401 7 Remove the sound blanket inner Step Procedure Points R10439 ...

Page 414: ...fter turning off all power supplies before disassembling work Step Procedure Points 1 Remove the terminal cover 2 Disconnect the compressor lead wires U red V yellow W blue 3 Remove the overload protector 4 Remove the 3 nuts Disconnect the pipings referring to page 366 R6466 Terminal cover R9471 W blue U red Overload protector V yellow R10440 ...

Page 415: ... 4 Trial Operation 408 4 1 RA Indoor Unit FTXG FTXS CTXS FVXG FVXS FLXS FDXS Series 408 4 2 SA Indoor Unit FCQG FFQ FHQ FDBQ FBQ Series 410 5 Field Settings 412 5 1 Outdoor Unit 412 5 2 RA Indoor Unit FTXG FTXS CTXS FVXG FVXS FLXS FDXS Series 415 5 3 SA Indoor Unit FCQG FFQ FHQ FDBQ FBQ Series 419 6 Application of Silicon Grease to a Power Transistor and a Diode Bridge 423 ...

Page 416: ...g the unit Detail 1 Remove the valve caps from the liquid stop valve and the gas stop valve 2 Carry out forced cooling operation 3 After 5 to 10 minutes close the liquid stop valve with a hexagonal wrench 4 After 2 to 3 minutes close the gas stop valve and stop the forced cooling operation Refer to page 405 for forced operation Gas stop valve Close Liquid stop valve Valve caps Hexagonal wrench R14...

Page 417: ...operation mode switch SW2 on the outdoor unit is set to the cooling mode 4 The operation mode switch SW2 on the outdoor unit is set to the heating mode Start Press the forced operation ON OFF switch SW1 on the outdoor unit Operating room All rooms The command is sent to all the rooms where the transmission is normal Only 1 room The command is sent to one of the rooms which can be operate and the o...

Page 418: ...monitor LED indicators start blinking Self correction complete The LED indicators 1 3 3 room model 1 4 4 room model or 1 5 5 room model blink one after another Self correction impossible The LED indicators blink all at the same time Transmission failure occurs at any of the indoor units The indoor unit heat exchanger thermistor is disconnected An indoor unit is in trouble if a trouble occurs durin...

Page 419: ...data on the microcomputer memory Those data can be checked by looking at the service monitor LED indicators when the wiring error checking is over during forced operation at the stop of the system The LED indicators stop blinking when the forced operation is over LED1 Room A wiring LED2 Room B wiring 1st blinking LED Port A piping 2nd blinking LED Port B piping The 1st blinking LED means the room ...

Page 420: ...operation mode The system then restarts operation with the previous operation mode when the circuit breaker is restored In cooling operation select the lowest programmable temperature in heating operation select the highest programmable temperature Trial operation may be disabled in either operation mode depending on the room temperature After trial operation is complete set the temperature to a n...

Page 421: ...rminates in approx 30 minutes and switches into normal mode To quit a trial operation press the ON OFF button ARC433 Series 1 Press the ON OFF button to turn on the system 2 Press the center of the TEMP button and the MODE button at the same time 3 Press the MODE button twice T appears on the display to indicate that trial operation is selected 4 Press the MODE button and select the operation mode...

Page 422: ...onnections been checked for refrigerant leakage Poor cooling Poor heating Stop Is the supply voltage conform to the specifications on the name plate Incorrect operation Are the cable sizes as specified and according to local regulations Damage of cables Are the remote controller signals received by the unit No operation Step Action 1 Turn on the power supply more than 6 hours before test operation...

Page 423: ... 6 Test operation is displayed on the bottom of the basic screen 7 Push the ON OFF button within 10 seconds to start the test operation How to check airflow direction 8 Push the Menu Enter button to enter the Main Menu 9 Use the buttons to select Airflow direction and push the Menu Enter button 10 Check that the airflow direction is actuated according to the setting and push the Menu Enter button ...

Page 424: ...et Priority room setting is made POWERFUL signal from the priority room unit is received Note The operation mode of the priority room unit has precedence Cancellation of control The control function is canceled when the POWERFUL operation mode is switched off or 20 minutes elapse after POWERFUL Operation started R1396 Living room Living room A room A room B room B room C room C room Normal operati...

Page 425: ... cooling only C Short circuit pins 3 and 5 of the connector S15 The following specifications apply to the connector housing and pins JST products Housing VHR 5N Pin SVH 21T 1 1 Note that forced operation is also possible in cooling heating mode COOL mode C HEAT mode H 1 3 5 Arrow view A Main PCB R14567 A A The illustration is for 68 75 80 90 models as representative On 40 50 52 58 models the locat...

Page 426: ...tings are complete reset the power 2 Install the removed jumper switch as described below This jumper switch is needed later to disable this setting 5 1 4 ECONO mode proof Setting Outline When installing in hotels you can make ECONO mode ineffective on the outdoor unit Operation The ECONO mode can be switched over between effective and ineffective by pressing the forced operation ON OFF switch SW1...

Page 427: ... indoor units are installed in 1 room 1 of the 2 indoor units and the corresponding wireless remote controller can be set for different address Both the indoor unit PCB and the wireless remote controller need alteration The method of address setting varies depending on the type of indoor unit and the series of wired remote controller Refer to the following pages for the appropriate indoor unit and...

Page 428: ...and front grille 2 Remove the screw and remove the service cover 3 Turn on the DIP switch S2W 1 on the service PCB Keep the other switches as factory setting OFF FTXS J Series FTXS G Series ADDRESS JA R12216 JA EXIST CUT ADDRESS 1 2 ADDRESS ADDRESS JA R11735 JB JA JC 1 2 EXIST CUT Service cover R14629 1 2 3 4 OFF ON Service PCB R14630 ...

Page 429: ...mistor 6 Remove the shield plate 8 tabs 7 Cut the address setting jumper JA on the indoor unit PCB Floor Ceiling Suspended Dual Type Cut the jumper JA on PCB Duct Connected Type Cut the jumper JA on PCB Connector S42 Connector S41 Connector S1 4 Remove the screw 5 Indoor heat exchanger thermistor 3 6 Shield plate R17290 Sensor PCB fixing plate JC JA JB JA EXIST CUT Address 1 2 2 Front shield plate...

Page 430: ...T 1 2 Jumper on indoor unit PCB Function When connected factory set When cut JB Fan speed setting when compressor stops for thermostat OFF effective only at cooling operation Fan speed setting Remote controller setting Fan speed setting 0 The fan stops JC Power failure recovery function Auto restart The unit does not resume operation after recovering from a power failure Timer settings are cleared...

Page 431: ... 3 If the indoor unit is under group control all settings for all the indoor units are set at the same time Use the codes 10 to 15 to apply this group control and proceed to the next step If you want to set the indoor units of one group individually or if you want to read out the last settings use the codes 20 to 25 which are displayed in brackets Press the PROGRAMMING button to select the indoor ...

Page 432: ... 21 22 and 23 have been selected push the button to highlight and buttons to select the INDOOR UNIT NO to be set This operation is unnecessary when setting by group 5 Highlight the second code No to be changed using the buttons and use the buttons to select the desired second code No When setting by group all of the second code No that may be set are displayed as 6 Push the Menu Enter button to di...

Page 433: ...ocity for high ceiling applications 2 7 m 2 7 3 0 m 3 0 3 5 m 1 Selection of airflow direction setting for when a blocking pad kit has been installed 4 way flow 3 way flow 2 way flow 3 Selection of airflow function setting for when using a decoration panel for outlet Equipped Not equipped 4 Airflow direction range setting Upper Normal Lower 6 External static pressure Refer to Note 2 14 24 2 Dust c...

Page 434: ...ration below Gently pry off the upper part of the controller working from the two possible positions 2 Set the MAIN SUB changeover switch on the PCB to S Step Action Remote controller 1 Put on the power for both remote controllers 2 Determine which one is the sub main remote controller 3 When Error code U5 Connection under check Please wait for a moment is displayed on both remote controllers push...

Page 435: ...n of the power transistor and the diode bridge Applying the paste should be implemented in accordance with the following instruction Note There is the possibility of failure with smoke in case of bad heat radiation Wipe off the old silicon grease completely on a radiation fin Apply the silicon grease evenly to the whole Do not leave any foreign object such as solder or paper waste between the powe...

Page 436: ...SiBE121135 424 Appendix Part 9 Appendix 1 Piping Diagrams 425 1 1 Outdoor Unit 425 1 2 Indoor Unit 430 2 Wiring Diagrams 437 2 1 Outdoor Unit 437 2 2 Indoor Unit 442 ...

Page 437: ...FFLER MUFFLER ACCUMULATOR MUFFLER REFRIGERANT FLOW COOLING COMPRESSOR EVB EVC 3D052056C EVA 12 7CuT 7 9CuT 12 7CuT 9 5CuT 6 4CuT 6 4CuT 6 4CuT 6 4CuT 12 7CuT 12 7CuT 12 7CuT 12 7CuT ELECTRONIC EXPANSION VALVE ELECTRONIC EXPANSION VALVE ELECTRONIC EXPANSION VALVE ELECTRONIC EXPANSION VALVE LIQUID PIPE THERMISTOR DLA LIQUID PIPE THERMISTOR DLB LIQUID PIPE THERMISTOR DLC LIQUID PIPE THERMISTOR DLD FI...

Page 438: ... 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 15 9CuT 9 5CuT 9 5CuT 15 9CuT 15 9CuT 9 5CuT 15 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 12 7CuT 12 7CuT 12 7CuT 12 7CuT 12 7CuT OUTDOOR TEMPERATURE THERMISTOR DISCHARGE PIPE THERMISTOR GAS LINE STOP VALVE LIQUID LINE STOP VALVE LIQUID PIPE THERMISTOR ROOM A LIQUID PIPE THERMISTOR ROOM B LIQUID PIPE THERMISTOR ROOM C LIQUID...

Page 439: ... 6 4 CuT ROOM B 6 4 CuT ROOM C 6 4 CuT ROOM A 9 5 CuT ROOM B 9 5 CuT ROOM C 9 5 CuT FIELD PIPING FIELD PIPING LIQUID SIDE GAS SIDE 3D073394 REFRIGERANT FLOW HEADER OUTDOOR UNIT COOLING HEATING 12 7CuT PROPELLER FAN DC FAN MOTOR HEAT EXCHANGER COMPRESSOR M MUFFLER 7 9CuT CAPILLARY TUBE ACCUMULATOR 12 7CuT DISTRIBUTOR 12 7CuT 9 5CuT MUFFLER MUFFLER FILTER HEADER HEADER 6 4CuT 6 4CuT 6 4CuT 12 7CuT 1...

Page 440: ...R OPERATEDVALVE MOTOR OPERATEDVALVE EVC EVB EVA 3D058888 OUTDOOR UNIT 12 7CuT 9 5CuT 12 7CuT 6 4CuT 12 7CuT 12 7CuT 12 7CuT 12 7CuT 12 7CuT 12 7CuT 6 4CuT 12 7CuT 6 4CuT 6 4CuT 7 9CuT OUTDOOR TEMPERATURE THERMISTOR DOA HEAT EXCHANGER THERMISTOR DE REVERSING SOLENOID VALVE DISCHARGE PIPE THERMISTOR DO GAS LINE STOP VALVE LIQUID LINE STOP VALVE LIQUID PIPE THERMISTOR DLA LIQUID PIPE THERMISTOR DLB L...

Page 441: ...STOR ROOM D 4 WAY VALVE LIQUID LINE STOP VALVE 3D051937E 12 7CuT HEATING 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 15 9CuT MUFFLER 7 9CuT 7 9CuT 7 9CuT 7 9CuT 15 9CuT 15 9CuT 9 5CuT 15 9CuT 9 5CuT 15 9CuT 9 5CuT 9 5CuT FILTER 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 12 7CuT 12 7CuT 12 7CuT 12 7CuT 12 7CuT 15 9CuT 12 7CuT 15 9CuT OUTDOOR TEMPERATURE THERMISTOR DISCHARGE PIPE THERMISTOR GAS ...

Page 442: ...IT 6 4CuT HEAT EXCHANGER CROSS FLOW FAN FIELD PIPING 6 4CuT M FAN MOTOR FIELD PIPING 12 7CuT 9 5CuT REFRIGERANT FLOW COOLING HEATING THERMISTOR ON HEAT EXCH 4D065856C INDOOR UNIT HEAT EXCHANGER 7 0CuT 4 8CuT 7 0CuT 7 0CuT 7 0CuT CROSS FLOW FAN M 9 5CuT REFRIGERANT FLOW COOLING HEATING FIELD PIPING 6 4CuT FIELD PIPING 9 5CuT FAN MOTOR THERMISTOR ON HEAT EXCH 4D058926N CROSS FLOW FAN 9 5CuT REFRIGER...

Page 443: ...PIPING 12 7CuT THERMISTOR ON HEAT EXCH 4D058898F FIELD PIPING FIELD PIPING 12 7CuT 6 4CuT CROSS FLOW FAN FAN MOTOR 7 9CuT INDOOR UNIT 12 7CuT M HEAT EXCHANGER REFRIGERANT FLOW COOLING HEATING THERMISTOR ON HEAT EXCH 4D040081Y 15 9CuT FIELD PIPING FIELD PIPING 6 4CuT CROSS FLOW FAN FAN MOTOR 7 9CuT INDOOR UNIT 12 7CuT M HEAT EXCHANGER REFRIGERANT FLOW COOLING HEATING THERMISTOR ON HEAT EXCH 4D04008...

Page 444: ...XCHANGER 6 4CuT 6 4CuT CROSS FLOW FAN FIELD PIPING M 6 4CuT FAN MOTOR FIELD PIPING 9 5CuT 12 7CuT REFRIGERANT FLOW COOLING HEATING THERMISTOR ON HEAT EXCH 4D071598 THERMISTOR ONHEATEXCH INDOOR UNIT MUFFLER ASSY 7 0CuT 6 4CuT 6 4CuT 6 4CuT 6 4CuT 6 4CuT 9 5CuT FIELD PIPING FIELD PIPING TURBO FAN FAN MOTOR 9 5CuT M HEAT EXCHANGER 6 4CuT REFRIGERANT FLOW COOLING HEATING 4D056137B FAN MOTOR 7 0CuT TUR...

Page 445: ...M FAN MOTOR REFRIGERANT FLOW COOLING HEATING 4D048722B INDOOR UNIT 9 5CuT 12 7CuT THERMISTOR ON HEAT EXCH FIELD PIPING 6 4CuT FIELD PIPING 12 7CuT INDOOR UNIT HEAT EXCHANGER SIROCCO FAN FAN MOTOR REFRIGERANT FLOW COOLING HEATING M 4D048724B INDOOR UNIT 6 4CuT HEAT EXCHANGER FIELD PIPING 6 4CuT SIROCCO FAN M FAN MOTOR FIELD PIPING A CuT REFRIGERANT FLOW COOLING HEATING 9 5 C 4D045449Q THERMISTOR ON...

Page 446: ...NT FLOW COOLING HEATING FCQG35FVEB FCQG50FVEB FCQG60FVEB 6 35 9 52 12 7 M FAN LIQUID PIPE CONNECTION PORT φ A GAS PIPE CONNECTION PORT φ B HEAT EXCHANGER C 4D076993 Indoor heat exchanger Field piping φ C1220T O Field piping φ C1220T O Indoor unit MODEL 6 4 6 4 9 5 12 7 FFQ25 35B9V1B FFQ50 60B9V1B To Outdoor unit A A B B C 4D039335B ...

Page 447: ...s Appendix 435 1 2 6 Ceiling Suspended Type FHQ35 50 60BWV1B Field piping φ C1220T O Indoor heat exchanger Field piping φ C1220T O Indoor unit MODEL 6 4 9 5 6 4 12 7 FHQ35BWV1B FHQ50 60BWV1B To Outdoor unit A A B B C 4D037995L ...

Page 448: ...gerant pipe connection port diameters Refrigerant flow Cooling Heating Heat exchanger Liquid pipe connection port Gas pipe connection port C 3TW31275 1 FBQ35C FBQ50C FBQ60C 9 52 12 70 12 70 6 35 6 35 6 35 Refrigerant pipe connection port diameters Model Gas Liquid Liquid pipe connection port Gas pipe connection port Heat exchanger Refrigerant flow Cooling Heating ...

Page 449: ...FAN MOTOR REACTOR OVERLOAD PROTECTOR POWER MODULE PRINTED CIRCUIT BOARD TERMINAL STRIP FIXED PLATE 3D057135 N L POWER SUPPLY ROOM D ROOM C ROOM A 3 3 3 3 2 2 2 2 1 1 1 1 FIELD WIRING indoor GRN SHEET METAL YLW X5M X4M X3M X2M X1M L 3 3 3 3 2 2 2 2 N 1 1 1 1 Z3C BLK BLK BLK BLK WHT WHT WHT WHT Z2C YLW RED ORG BLU BRN BLU A B C D AC2 AC1 1 4 1 SW2 GRN BLU BLU 7 1 5 3 1 3 BLU S10 S15 BLU SW5 LED FU1 ...

Page 450: ...E CONNECTOR MRM10 MRM20 MRC W R1T R11T S2 S102 LED1 LED4 LEDA MAGNETIC RELAY THERMISTOR CONNECTOR PILOT LAMP L N SW1 SW2 SW3 SW4 SW5 LIVE NEUTRAL FORCED OPERATION ON OFF SW SW1 SELECT SW SW2 WIRING ERROR CHECK SW SW3 PRIORITY ROOM SETTING SW SW4 NIGHT QUIET MODE SETTING SW SW5 M1C M1F L1R Q1L PM1 PCB1 2 SHEET METAL COMPRESSOR MOTOR FAN MOTOR REACTOR OVERLOAD PROTECTOR POWER MODULE PRINTED CIRCUIT ...

Page 451: ...R MOTOR FAN MOTOR REACTOR OVERLOAD PROTECTOR POWER MODULE PRINTED CIRCUIT BOARD REVERSING SOLENOID VALVE COIL TERMINAL STRIP FIXED PLATE 3D057134A indoor outdoor FIELD WIRING Y3E M V RED X4M RED WHT 1 WHT V3 SA2 S102 WHT 2 M 12 V9 GRY R6T BLK E2 GRN SW2 ROOM C BLU 1 7 N 2 BRN Z6C R1T X2M S2 BLK 2 BLU 7 Y1R 9 YLW POWER SUPPLY BRN SW1 S92 BLU ORG S93 1 WHT WHT S10 BLK FU1 YLW GRY 5 3 15A BLU BLU R4T...

Page 452: ...MRM10 MRM20 MRC W R1T R11T S2 S102 LED1 LED4 LEDA MAGNETIC RELAY THERMISTOR CONNECTOR PILOT LAMP L N SW1 SW2 SW3 SW4 SW5 LIVE NEUTRAL FORCED OPERATION ON OFF SW SW1 SELECT SW SW2 WIRING ERROR CHECK SW SW3 PRIORITY ROOM SETTING SW SW4 NIGHT QUIET MODE SETTING SW SW5 M1C M1F L1R Q1L PM1 PCB1 2 Y1R SHEET METAL COMPRESSOR MOTOR FAN MOTOR REACTOR OVERLOAD PROTECTOR POWER MODULE PRINTED CIRCUIT BOARD RE...

Page 453: ...RANGE RED RED GRN GREEN BLU BLUE BRN BROWN BLK BLACK GRY GREY FIELD WIRING PROTECTIVE EARTH SCREW TERMINAL STRIP TERMINAL RELAY CONNECTOR CONNECTOR CONNECTION L LIVE N NEUTRAL Z1C Z6C X1M X6M Y1E Y5E V2 V3 V5 V9 V100 SA2 FU1 FU2 FU3 AC1 AC2 U V W X11A E1 E2 HR1 HR2 MRM10 MRM20 MRC W FERRITE CORE TERMINAL STRIP ELECTRONIC EXPANSION VALVE COIL VARISTOR SURGE ARRESTER FUSE CONNECTOR MAGNETIC RELAY R1...

Page 454: ... 2 PCB 1 S26 S27 S27 S27 FIELD WIRING BLK 1 1 1 10 BLK GRN YLW BLK H1P LED1 H1P LED1 H1P LED1 FG2 BLK BLK 3 H2P LED2 H2P LED2 H2P LED2 FG1 BLK 2 BLK RECTIFIER H3 BLK H3P LED3 H3P LED3 H3P LED3 3 3 OUTDOOR BLK 1 MR10 V1 H2 1 BLK 10 10 10 2 2 H1 S1W 1 1 t X1M R1T IPM200 1 1 1 1 3 2 5 10 S403 1 6 9 12 S25 S32 S200 S6 INDOOR BLK BLK BLK BLK BLK BLK BLK BLK BLK BLK BLK BLK BLK BLK BLK BLK BLK BLK BLK B...

Page 455: ...E PILOT LAMP MAGNETIC RELAY FAN MOTOR SWING MOTOR PRINTED CIRCUIT BOARD THERMISTOR CONNECTOR OPERATION SWITCH VARISTOR TERMINAL STRIP PROTECTIVE EARTH 3D058246F GRN YLW 1 FU1 F1U X1M PCB1 PCB3 S46 S49 2 H1 BLK 1 1 BLK 1 LED1 H1P 3 BLK 3 15A WHT OUTDOOR 2 BLK C102 V1 BLK LED2 H2P RED 3 H2 MR10 BLK GRN BLK FIELD WIRING BLK LED3 H3P C101 BLK H3 9 9 BLK CAUTION FG SW1 S21 t S1 HA 7 RED RTH1 R1T BZ 4 B...

Page 456: ...RMISTOR S1 S57 S1W S2W 4 X1M E3 Y1E Z1C CONNECTOR OPERATION SWITCH UPWARD AIR FLOW LIMIT SWITCH TERMINAL STRIP EARTH TERMINAL HEAT EX ELECTRONIC EXPANSION VALVE COIL FERRITE CORE 3D069838A M S1W M M S2W 4 3 2 1 3 X1M 2 1 E3 S26 BLU S42 PCB4 S48 S41 M1S 3 15A BRN RED 1 RECTIFIER RED LED2 WHT V2 5 H2 GRN S4W ORG 6 M2S PNK PCB3 V1 4 YLW LED1 H3 S21 S1 BLU SA1 S32 H1 S46 HA S27 M1F RED PCB1 1 F1U E4 E...

Page 457: ...S6 S37 X11A X21A S1W X1M PRINTED CIRCUIT BOARD THERMISTOR CONNECTOR OPERATION SWITCH SW7 TERMINAL STRIP 3D033909F PCB2 LED H1P LED H2P S1W LED H3P 2RTH1 R1T t 10 1 S1 1 BRN S26 2 PCB1 S32 R2T t 1 10 BRN S21 1 indoor 3 1 S7 BLU GRY PPL S1 RED 6 V1TR 1 M1F M 3 BLK 1 WHT YLW C1 3 15A F1U GND H2 H3 H1 Z1C N 2 GRN GRN WHT BLK RED YLW YLW X1M 2 3 1 CAUTION FIELD WIRING 2 3 1 outdoor WIRELESS REMOTE CONT...

Page 458: ...ONTROLLER SENSOR KIT OPTIONAL ACCESSORY 1 1 2 2 3 3 t t NOTE 3 NOTE 3 NOTE 3 t X2A NOTE 3 NOTE 3 WIRED REMOTE CONTROLLER OPTIONAL ACCESSORY NOTE 5 INPUT FROM OUTSIDE NOTE 9 CENTRAL REMOTE CONTROLLER NOTE 2 NORM EMG INDOOR UNIT 35 60 CLASS TO OUTDOOR UNIT NOTE 8 H05VV U4G2 5 NOTE 7 FAN OPERATION COMPRESSOR OPERATION TERMINAL FOR OPERATION DISPLAY ADAPTOR FOR WIRING OPTIONAL ACCESSORY NOTE 4 A4P A5P...

Page 459: ...1P M1S Q1M R1T R2T R3T S1L T1R V1TR X1M X2M RC TC PRINTED CIRCUIT BOARD CAPACITOR M1F FUSE F5A 250V LIGHT EMITTING DIODE SERVICE MONITOR GREEN MAGNETIC RELAY M1P MOTOR INDOOR FAN MOTOR DRAIN PUMP MOTOR SWING FLAP THERMO SWITCH M1F EMBEDDED THERMISTOR AIR THERMISTOR COIL 1 THERMISTOR COIL 2 FLOAT SWITCH TRANSFORMER 220 240V 22V PHASE CONTROL CIRCUIT TERMINAL STRIP TERMINAL STRIP SIGNAL RECEIVER CIR...

Page 460: ... DRAIN PUMP 9 SYMBOLS SHOW AS FOLLOWS BLK BLACK RED RED BLU BLUEWHT WHITE PNK PINKYLW YELLOW GRY GRAY PRP PURPLE 10 SHOWS ONLY IN CASE OF PROTECTED PIPES USE H07RN F IN CASE OF NO PROTECTION 1 TERMINAL BLOCK CONNECTOR SHORT CIRCUIT CONNECTOR CONNECTOR 2 FIELD WIRING 3 IN CASE OF SIMULTANEOUS OPERATION INDOOR UNIT SYSTEM SEETHE INDOOR UNITWIRING ONLY 4 FORTHE DETAIL SEEWIRING DIAGRAM ATTACHEDTO OUT...

Page 461: ...OR UNIT R1T SS1 WIRED REMOTE CONTROLLER THERMISTOR AIR SELECTOR SWITCH MAIN SUB SWITCH BOX INDOOR INDOOR UNIT A1P A2P A3P C1 C2 C3 F1U F3U HAP KPR K1R L1R M1F M1P PS Q1DI R2 R3 R4 R1T R2T R3T R5T SS1 S1L V1R V2R X1M X2M Z1C Z2C Z1F RC TC CONNECTOR OPTIONAL ACCESSORY X28A X33A X35A X85A CONNECTOR POWER SUPPLY FOR WIRING CONNECTOR FOR WIRING CONNECTOR ADAPTER CONNECTOR FOR MULTI ZONING WIRED REMOTE ...

Page 462: ...nstaller or contractor to install those parts and accessories Use of unauthorised parts and accessories or improper installation of parts and accessories can result in water or refrigerant leakage electrical shock fire or explosion z Read the User s Manual carefully before using this product The User s Manual provides important safety instructions and warnings Be sure to follow these instructions ...

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