Daikin FTXS09DVJU, FTXS12DVJU, FTXS24DVJU, RX09FVJU, RX12FVJU Service Manual

...

SiUS04 - 702

Inverter Pair

Wall Mounted Type D-Series

[Applied Models] z Inverter Pair : Heat Pump

SiUS04-702

Heat Pump Indoor Unit FTXS09DVJU

FTXS12DVJU FTXS15DVJU FTXS18DVJU FTXS24DVJU

Outdoor Unit

Inverter Pair

D-Series

RX09FVJU RX12FVJU RX15FVJU RX18FVJU RX24FVJU

Table of Contents i

SiUS04-702

1. Introduction ............................................................................................... vi

1.1 Safety Cautions...........................................................................................vi

1.2 Used Icons ...................................................................................................x

Part 1 List of Functions ...................................................................1

1. List of Functions.........................................................................................2

Part 2 Specifications .......................................................................3

1. Specifications.............................................................................................4

Part 3 Printed Circuit Board Connector Wiring Diagram ................7

1. Printed Circuit Board Connector Wiring Diagram.......................................8

1.1 FTXS09/12DVJU......................................................................................... 8

1.2 FTXS15/18/24DVJU.................................................................................. 10

1.3 RX09/12FVJU ........................................................................................... 12

1.4 RX15/18/24FVJU ...................................................................................... 14

Part 4 Function and Control...........................................................17

1. Main Functions.........................................................................................19

1.1 Frequency Principle................................................................................... 19

1.2 Power-Airflow Dual Flaps, Wide-Angle Louvres and Auto-Swing ............. 21

1.3 Fan Speed Control for Indoor Units........................................................... 22

1.4 Programme Dry Function ............................... ............... ................ ............ 23

1.5 Automatic Operation.............................. ............... ................ ............... ...... 24

1.6 Thermostat Control.................................................................................... 25

1.7 NIGHT SET Mode ..................................................................................... 26

1.8 INTELLIGENT EYE............... .................................................................... 27

1.9 HOME LEAVE Operation .......................................................................... 29

1.10 Inverter POWERFUL Operation...................................... ................ .......... 30

1.11 Other Functions................... ................ ............... ................ ............... ........ 31

2. Function of Thermistor.............................................................................33

2.1 Heat Pump Model..... ................ ............... ................ ............... ............... .... 3 3

3. Control Specification (09/12 Class)..........................................................34

3.1 Mode Hierarchy............... .......................................................................... 34

3.2 Frequency Control..................................................................................... 35

3.3 Controls at Mode Changing / Start-up....................................................... 37

3.4 Discharge Pipe Temperature Control................................... ............... ...... 38

3.5 Input Current Control................................................................................. 39

3.6 Freeze-up Protection Control .............. ............... ................ ............... ........ 39

3.7 Heating Peak-cut Control .......................................................................... 40

3.8 Fan Control................................................................................................ 40

3.9 Liquid Compression Protection Function 2 ................ ............................... . 40

3.10 Defrost Control ............................... ................ ............... ................ ............ 41

3.11 Electronic Expansion Valve Control .......................................................... 42

3.12 Malfunctions .............................................................................................. 45

3.13 Forced Operation Mode ............................................................................ 46

ii Table of Contents

SiUS04-702

3.14 Additional Function... ................ ............... ................ ............... ................... 46

4. Control Specification (15/18/24 Class).....................................................47

4.1 Mode Hierarchy............... .......................................................................... 47

4.2 Frequency Control..................................................................................... 48

4.3 Controls at Mode Changing / Start-up....................................................... 50

4.4 Discharge Pipe Temperature Control................................... ............... ...... 51

4.5 Input Current Control................................................................................. 52

4.6 Freeze-up Protection Control .............. ............... ................ ............... ........ 53

4.7 Heating Peak-cut Control .......................................................................... 53

4.8 Fan Control................................................................................................ 54

4.9 Liquid Compression Protection Function 2 ................ ............................... . 54

4.10 Low Hz High Pressure Limit................ ............... ................ ............... ........ 55

4.11 Defrost Control ............................... ................ ............... ................ ............ 55

4.12 Electronic Expansion Valve Control .......................................................... 56

4.13 Malfunctions .............................................................................................. 59

4.14 Forced Operation Mode ............................................................................ 60

4.15 Additional Function... ................ ............... ................ ............... ................... 60

Part 5 Operation Manual ................................................................61

1. System Configuration...............................................................................62

2. Instruction.................................................................................................63

2.1 Safety Precautions .................................................................................... 63

2.2 FTXS09/12DVJU....................................................................................... 65

2.3 FTXS15/18/24DVJU.................................................................................. 90

Part 6 Service Diagnosis..............................................................115

1. Caution for Diagnosis.............................................................................116

2. Problem Symptoms and Measures........................................................118

3. Service Check Function.........................................................................119

4. Troubleshooting .....................................................................................122

4.1 Error Codes and Description................................................................... 122

4.2 Indoor Unit PCB Abnormality .................................................................. 123

4.3 Freeze-up Protection Control or High Pressure Control............. ............. 124

4.4 Fan Motor or Related Abnormality ...... ............... ................ ............... ...... 126

4.5 Thermistor or Related Abnormality (Indoor Unit)..................................... 129

4.6 Signal Transmission Error (between Indoor and Outdoor Unit) .............. 130

4.7 OL Activation (Compressor Overload) ............................ .................. ...... 132

4.8 Compressor Lock .................................................................................... 133

4.9 DC Fan Lock ............ ................ ............... ................ ............... ............... .. 135

4.10 Input Over Current Detection .................................................................. 136

4.11 Four Way Valve Abnormality................... ................................................ 139

4.12 Discharge Pipe Temperature Control.... ............................... ............... .... 143

4.13 High Pressure Control in Cooling............................................................ 145

4.14 Position Sensor Abnormality ................................................................... 149

4.15 DC Voltage / Current Sensor Abnormality ............... ............... ................. 151

4.16 CT or Related Abnormality...................................................................... 152

4.17 Thermistor or Related Abnormality (Outdoor Unit).. .. .............................. 154

Table of Contents iii

SiUS04-702

4.18 Electrical Box Temperature Rise............................... ............... ............... 156

4.19 Radiation Fin Temperature Rise ............................................................. 158

4.20 Output Over Current Detection................................................................ 160

4.21 Insufficient Gas........................................................................................ 164

4.22 Over-voltage Detection............................ ................ .............................. .. 168

4.23 Low-voltage Detection............................................................................. 169

5. Check.....................................................................................................170

5.1 How to Check.......................................................................................... 170

Part 7 Removal Procedure ...........................................................181

1. FTXS09/12DVJU....................................................................................182

1.1 Removal of Air Filter.................................. ................ ............... ............... 182

1.2 Removal of Front Grille .................................. ............... .......................... 185

1.3 Removal of Horizontal Blade and Vertical Blade................................... .. 188

1.4 Removal of Electrical Box, PCB and Swing Motor.................................. 190

1.5 Removal of Heat Exchanger ............... ............... ............................... ...... 196

1.6 Install of Drain Plug .. ................ ............................... ............... ............... .. 199

1.7 Removal of Fan Rotor and Fan Motor......................... ............... ............. 201

2. FTXS15/18/24DVJU...............................................................................205

2.1 Removal of the Air Filter / Front Panel .... ............................... ............... .. 205

2.2 Removal of the Front Grille ....................... ................ ............... ............... 209

2.3 Removal of the Horizontal Blades / Vertical Blades................... ............. 212

2.4 Removal of the Electrical Box / PCB / Swing Motor................................ 215

2.5 Removal of the Heat Exchanger .......................... ................ ............... .... 223

2.6 Removal of the Fan Rotor / Fan Motor........ ................ ............... ............. 226

3. RX09/12FVJU........................................................................................229

3.1 Removal of Panels and Fan Motor.......................... ............... ............... .. 229

3.2 Removal of Electrical Box ................... ............... ............................... ...... 237

3.3 Removal of Reactor and Partition Plate ............................... ............... .... 239

3.4 Removal of Sound Blanket...................................... ............... ............... .. 241

3.5 Removal of Four Way Valve.. ................ ............................... ............... .... 244

3.6 Removal of Compressor.. ............................... ............... ................ .......... 246

3.7 Removal of PCB.................... ................ ............... ................ ............... .... 249

4. RX15/18/24FVJU...................................................................................252

4.1 Removal of the Panels and Plates............................................. ............. 252

4.2 Removal of the Fan Motor / Propeller Fan........................... ................. .. 257

4.3 Removal of the PCB / Electrical Box............................... ................ ........ 261

4.4 Removal of the Reactor... ............... ............................... ................ .......... 270

4.5 Removal of the Sound Blanket........................................ ................ ........ 272

4.6 Removal of the Four Way Valve.................. ................ ............... ............. 275

4.7 Removal of the Electronic Expansion Valve.................. .................. ........ 276

4.8 Removal of the Compressor.. ................ ............................... ............... .... 277

Part 8 Others ................................................................................279

1. Others ....................................................................................................280

1.1 Test Run from the Remote Controller ..................................................... 280

1.2 Jumper Settings ....... ................ ............................... ............... ............... .. 281

iv Table of Contents

SiUS04-702

Part 9 Appendix............................................................................283

1. Piping Diagrams................................. ..... .... .......................................... .284

1.1 Indoor Units............................................................................................. 284

1.2 Outdoor Units .......................................................................................... 285

2. Wiring Diagrams.....................................................................................287

2.1 Indoor Units............................................................................................. 287

2.2 Outdoor Units .......................................................................................... 288

Index ................................................................................................i

Drawings & Flow Charts .................................................................vii

Table of Contents v

Introduction SiUS04-702

1. Introduction

1.1 Safety Cautions



Cautions and Warnings

Be sure to read the following safety cautions before conducting repair work.



The caution items are classified into “ Warning” and “ Caution”. The “ Warning” items are especially important since they can lead to death or serious injury if they are not followed closely. The “ Caution” items can also lead to serious accidents under some conditions if they are not followed. Therefore, be sure to observe all the safety caution items described below.



About the pictograms

This symbol indicates the item for which caution must be exercised.

The pictogram shows the item to which attention must be paid.

This symbol indicates the prohibited action.

The prohibited item or action is shown in the illustration or near the symbol.

This symbol indicates the action that must be taken, or the instruction.

The instruction is shown in the illustration or near the symbol.



After the repair work is complete, be sure to conduct a test operation to ensure that the equipment operates normally, and explain the cautions for operating the product to the customer.

1.1.1 Cautions Regarding Safety of Workers

Be sure to disconnect the power cable plug from the plug socket before disassembling the equipment for repair. Working on the equipm ent that is conn ected to the powe r supply may ca use an electrical shook. 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 work, do not touch the discharged refrigerant gas. The refrigerant gas may cause frostbite.

When disconnecting the suction or discharge pipe of the compressor at the welded section, evacuate the refrigerant gas completely at a well-ventilated place first. If there is a gas remaining inside the compressor, the refrigerant gas or refrigerating machine oil discharge s when the pipe is di sconnected, and it may cause injury.

If the refrigerant gas leaks during the repair work, ventilate the area. The refrigerant gas may generate toxic gases when it contacts flames.

Warning

The step-up capacitor supplies high-voltage electricity to the electrical components of the outdoor unit. Be sure to discharge the capacitor completely before conducting repair work. A charged capacitor may cause an electrical shock.

Do not start or stop the air c onditione r operation b y pluggin g or unplugg ing the power cable plug. Plugging or unplugging the power cable plug to operate the equipment may cause an electrical shock or fire.

SiUS04-702 Introduction

Warning

Be sure to wear a safety helmet, gloves, and a safety belt when working at a high place (more than 2m). Insufficient safety measures may cause a fall accident.

In case of R410A refrigerant mode ls, be sure to u se pipes, fl are nuts and to ols for the exclusive use of the R410A refrigerant. The use of material s for R22 refrigera nt mod els m ay ca use a seriou s accid ent such as a damage of refrigerant cycle as well as an equipment failure.

Caution

Do not repair the electrical components with wet hands. Working on the equipment with wet hands may cause an electrical 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 pow er cable when cleaning the equipment. The internal fan rotates at a high speed, and cause injury.

Be sure to conduct repair work with appropriate tools. The use of inappropriate tools may cause injury.

Be sure to check that the refrigerating cycle section has cooled down enough before conducting repair work. Working on the unit when the refrigerating cycle section is hot may cause burns.

Use the welder in a well-ventilated place. Using the welder in an enclosed room may cause oxygen deficiency.

vii

Introduction SiUS04-702

1.1.2 Cautions Regarding Safety of Users

Warning

Be sure to use parts liste d in the serv ic e p arts li st o f the app li cab le m od el and appropriate tools to conduct repair work. Never attempt to modify the equipment. The use of inappropriate parts or tools may cause an electrical shock, excessive heat generation or fire.

If the power cable and lead wires have scratches or deteriorated, be sure to replace them. Damaged cable and wires may cause an electrical shock, excessive heat generation or fire.

Do not use a joined power cable or extension cable, or share the same power outlet with other electrical appliances, since it may cause an electrical shock, excessive heat generation or fire.

Be sure to use an exclusiv e power circuit for the equi pment, and follow the local technical standards related to the electrical equipment, the internal wiring regulations, and the instruction manual for installation when conducting electrical work. Insufficient power circuit capacity and improper electrical work may cause an electrical shock or fire.

Be sure to use the specified cable for wiring between the indoor and outdoor units. Make the con nections securel y and route the c able properly s o that there is no force pulling the cable at the connection terminals. Improper connections may cause excessive heat generation or fire.

When wiring between t he indoor and o utdoor units, mak e sure that the term inal cover does not lift off or dismount because of the cable. If the cover is no t mounted properly, th e terminal connec tion section may c ause 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. Placing heavy items on the po wer cable, and heating or pu lling the power cable may damage the cable.

Do not mix air or gas other than the specifie d refri gera nt (R 410 A / R22) in the refrigerant system. If air enters the refrigerating system, an excessively high pressure results, causing equipment damage and injury.

If the refrigerant gas leaks, be sure to locate the leaking point and repair it before charging the refrigerant. After chargi ng refrigerant, make s ure that there is no refrigerant leak. If the leaking point c annot b e loc ated an d the re pair work mus t be st opped, be sure to perform pump-down and close the service valve, to prevent the refrigerant gas from leaking into the room. The refrigerant gas itself is harmless, but it ma y generate toxic gase s when it conta cts flames, such as fan and other heaters, stoves and ranges.

When relocating the equipment, make sure that the new installation site has sufficient strength to withstand the weight of the equipment. If the installation site does not have sufficient strength and if the installation work is not conducted securely, the equipment may fall and cause injury.

viii

SiUS04-702 Introduction

Warning

Check to make sure that the power cable plug is not dirty or l oose, then insert the plug into a power outlet securely. If the plug has d ust or loose connectio n, it may cau se an elec trical shoc k or fire.

Be sure to install the product correctly by using the provided standard installation frame. Incorrect use of the installation frame and improper installation may cause the equipment to fall, resulting in injury.

Be sure to install the pro duct sec urely in th e inst allati on fram e mou nted o n the window frame. If the unit is not securely mounted, it may fall and cause injury.

When replacing the coin battery in the remote controller, be sure to disposed of the old battery to prevent children from swallowing it. If a child swallows the coin battery, see a doctor immediately.

Caution

Installation of a leak age breaker is ne cessary in some cases depend ing on the conditions of the installation site, to prevent electrical shocks.

For unitary type only

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 unit, it may cause a fire.

Check to see if the parts a nd w ire s ar e mo unted and connected properly, and if the connections at the soldered or crimped terminals are secure. Improper installation and connections may cause excessive heat generation, fire or an electrical shock.

If the installation platform or frame has corroded, replace it. Corroded installation platform or frame may cause the unit to fall, resulting in injury.

Check the grounding, and repair it if the equipment is not properly grounded. Improper grounding may cause an electrical shock.

Introduction SiUS04-702

Caution

Be sure to measure the insulation resistance after the repair, and make sure that the resistance is 1 MΩ or higher. Faulty insulation may cause an el ectrical shock.

Be sure to check the drainage of the indoor unit after the repair. Faulty drainage may cause the water to enter the room and wet the furniture and floor.

Do not tilt the unit when removing it. The water inside the unit may spill and wet the furniture and floor.

Be sure to install the packing and seal on the installation frame properly. If the packing and seal are not insta lled properly, water may en ter the room and wet the furniture and floor.

1.2 Used Icons

Icons are used to attract the attention of the reader to specific information. The meaning of each icon is described in the table below:

Icon Type of

Note:

Caution

Warning

For unitary type only

Description

Information Note A “note” provides information that is not indisp ensab le, but ma y

nevertheless be valuable to the reader, such as tips and tricks.

Caution A “caution” is used when there is danger tha t the reader, th rough

incorrect manipula tion, may dama ge equipmen t, loose data , get an unexpected result or has to restart (part of) a procedure.

Warning A “warning” is used when there is danger of personal injury.

Reference A “reference” guides the reader to o ther p lac es in this b ind er or

in this manual, where he/ she will find additional in formation on a specific topic.

SiUS04-702

Part 1

List of Functions

1. List of Functions.........................................................................................2

List of Functions 1

List of Functions SiUS04-702

1. List of Functions

Category Functions

FTXS09·12DVJU

RX09·12FVJU

Basic Function

Compressor Oval Scroll Compressor — —

Comfortable Airflow

Comfort Control

Operation Automatic Operation

Lifestyle Convenience

Inverter (with Inverter Power Control) Operation Limit for Cooling (°FDB)

Operation Limit for Heating (°FWB) PAM Control

Swing Compressor Rotary Compressor — — Wipe-clean Flat Panel Reluctance DC Motor Power-Airflow Flap — — Filter Cleaning Indicator — — Power-Airflow Dual Flaps Power-Airflow Diffuser — — Timer 24-Hour On/Off Timer Wide-Angle Louvers Vertical Auto-Swing (Up and Down) Horizontal Auto-Swing (Right and Left) — 3-D Airflow — Comfort Airflow Mode — — 3-Step Airflow (H/P Only) — — Auto Fan Speed Indoor Unit Quiet Operation Night Quiet Mode (Automatic) — — Flexible Voltage Correspondence — — Outdoor Unit Quiet Operation (Manual) Intelligent Eye Quick Warming Function Hot-Start Function

Automatic Defrosting

Program Dry Function Fan Only New Powerful Operation (Non-Inverter) — — Inverter Powerful Operation Priority-Room Setting — — Remote Cooling / Heating Mode Lock — — Wired — — Home Leave Operation Indoor Unit On/Off Switch Signal Reception Indicator Temperature Display — — Another Room Operation — —

Note:

: Holding Functions

{

{{

14~

115

5~645~

{{

— : No Func tions

Category Functions

FTXS15·18·24DVJU

RX15·18·24FVJU

{

Health & Clean

Worry Free “Reliability & Durability”

Flexibility

Remote Control

Controller

Air Purifying Filter — — Photocatalytic Deodorizing Filter — — Air Purifying Filter with Photocatalytic

Deodorizing Function Titanium Apatite Photocatalytic

Air-Purifying Filter Mold Proof Air Filter

Washable Grille — —

Good-Sleep Cooling Operation — —

Night Set Mode Auto-Restart (after Power Failure) Self-Diagnosis (Digital, LED) Display Wiring Error Check — —

Anticorrosion Treatment of Outdoor Heat Exchanger

Multi-Split / Split Type Compatible Indoor Unit

High Ceiling Application — — Chargeless Either Side Drain (Right or Left) Power Selection — — 5-Rooms Centralized Controller

(Option) Remote Control Adapter

(Normal Open-Pulse Contact) (Option) Remote Control Adapter

(Normal Open Contact) (Option) DIII-NET Compatible (Adapter) (Op tion )

Wireless

FTXS09·12DVJU

RX09·12FVJU

FTXS15·18·24DVJU

RX15·18·24FVJU

{{

——

{{

——

33ft 33ft

{{

2 List of Functions

SiUS04-702

Part 2

Specifications

1. Specifications.............................................................................................4

Specifications 3

Specifications SiUS04-702

1. Specifications

230V

Models

Capacity Rated (M in .~Max.)

Moistur e R e moval Pt/h 2.3 — 3.2 — Running Current (Rated) A 4.56 5.21 6.00 5.20 Power Consumption Rated Power Factor % 81.1 93.4 97.1 92.0 EER (Rated) COP (Rated) W/W — 2.62 — 3.06

Energy Efficiency

Piping Connections

Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes Max. Interunit Piping Length feet 65 65 Max. Interunit Height Difference feet 49 49 Chargeless feet 33 33 Amount of Additional Charge of

Refrigerant

Indoor Units FTXS09DVJU FTXS12DVJU

Front Panel Color White White

Air Flow Ra te cfm (m³/min)

Fan

Air Direction C o n tro l Right, Left, Horizontal and Downward Right, Left, Horizonta l and Dow nward Air Filter Removable / Washable / Mildew Proof Removable / Washable / Mildew Proof Running Current (Rated) A 0.18 0.18 Power Consumption (Rated) W 40 40 Power Factor % 96.6 96.6 Temperature Control Microcomputer Control Microcomputer Control Dimensions (H×W×D) inch 10-3/4×30-7/8×7-11/16 10-3/4×30-7/8×7-11/16 Packaged Dimensions (H×W×D) inch 10-3/16×32-13/16×12-13/16 10-3/16×32-13/16×12-13/16 Weight Lbs 16.6 16.6 Gross Weight Lbs 25.0 25.0 Operation Sound H/M/L dBA 38 / 32 / 25 38 / 33 / 28 40 / 33 / 26 39 / 34 / 29

Outdoor Units RX09FVJU RX12FVJU

Casing Color Ivory White Ivory White

Compressor

Refrigerant Oil

Refrigerant

Air Flow Ra te cfm (m³/min)

Fan Running Current (Rated) A 4.38 5.03 5.87 5.02

Power Consumption (Rated) W 810 1,080 1,310 1,060 Power Factor % 80.4 93.3 97.1 91.8 Dimensions (H×W×D) inch 21-5/8×30-1/8×11-1/4 21-5/8×30-1/8×11-1/4 Packaged Dimensions (H×W×D) inch 25×34-5/8×14-3/16 25×34-5/8×14-3/16 Weight Lbs 74.0 79.0 Gross Weight Lbs 84.0 91.0 Operation Sound H / L dBA 48 / — 49 / — 49 / — 51 / — Drawing No. 3D056379 3D056380

Indoor Units FTXS09DVJU FTXS12DVJU Outdoor Units

Btu/h 8,500 (5,100~8,500) 10,000 (5,100~10,000) 11,500 (5,500~11,500) 11,500 (5,500~11,500)

(Min.~Max.)

SEER 13.0 — 13.0 — HSPF —7.7—7.7 Liquid inch Gas inch Drain inch

Type Cross Flow Fan Cross Flow Fan Motor Ou tp u t W 18 18 Speed Steps 5 Steps, Quiet and Auto 5 Steps, Quiet and Auto

Type Hermetically Sealed Swing Type Hermetically Sealed Swing Type Model 1YC23NXD 1YC23NXD Motor Output W 600 600 Type FVC50K FVC50K Charge oz 12.6 12.6 Type R-410A R-410A Charge Lbs 1.76 2.20

Type Propeller Propeller Motor Ou tp u t W 31 31

W 850(300~850) 1,120(290~1,220) 1,350(300~1,350) 1,100(310~1,190)

Btu/h·W

oz/ft 0.22 0.22

H 246(7.0) 253(7.2) 242(6.8) 286(8.1)

M 197(5.6) 220(6.2) 195(5.5) 237(6.7)

L 148(4.2) 187(5.3) 148(4.2) 187(5.3)

H 1,120(31.7) 1,008(28.5) 1,031(29.2) 927(26.3) L 816(23.1) 813(23.0) 737(20.9) 737(20.9)

Coolin g Heating Cooling Heating

10.0 — 8.5 —

RX09FVJU RX12FVJU

1/4

3/8

11/16

1/4

3/8

11/16

Note:

The data are based on the conditions shown in the table below.



Cooling Heating Piping Length

Indoor ; 80°FDB/67°FWB

Outdoor ; 95°FDB/75°FWB

Indoor ; 70°FDB/60°FWB

Outdoor ; 47°FDB/43°FWB

25ft

Conversion Formulae

kcal/h=kW×860

Btu/h=kW×3414

cfm=m³/min×35.3

4 Specifications

SiUS04-702 Specifications

60Hz 230V

Model

Capacity Rated (M in .~Max.)

Moistur e R e moval Pt/h 3.4 — 4.3 — Running Current (Rated) A 6.01 7.58 7.67 9.58 Power Consumption Rated Power Factor % 98.4 99.2 99.2 99.8 EER (Rated) COP (Rated) W/W — 3.05 — 2.88

Energy Efficiency

Piping Connections

Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes Max. Interunit Piping Length feet 98.4 98.4 Max. Interunit Height Difference feet 65.6 65.6 Chargeless feet 33 33 Amount of Additional Charge of

Refrigerant

Indoor Unit FTXS15DVJU FTXS18DVJU

Front Panel Color White White

Air Flow Ra te cfm (m³/min)

Fan

Air Direction C o n tro l Rig h t, Le ft, Horizontal, Do w n ward Right, Left, H o riz o n ta l, D o wnward Air Filter Removable / Washable / Mildew Proof Removable / Washable / Mildew Proof Running Current (Rated) A 0.18 0.18 Power Consumption (Rated) W 40 40 Power Factor % 96.6 96.6 Temperature Control Microcomputer Control Microcomputer Control Dimensions (H×W×D) inch 11-7/16×41-5/16×9-3/8 11-7/16×41-5/16×9-3/8 Packaged Dimensions (H×W×D) inch 13-1/4×45-3/16×14-7/16 13-1/4×45-3/16×14-7/16 Weight Lbs 26.5 26.5 Gross Weight Lbs 38.0 38.0 Operation

Sound

Outdoor Unit RX15FVJU RX18FVJU

Casing Color Ivory White Ivory White

Compressor

Refrigerant Oil

Refrigerant

Air Flow Ra te cfm (m³/min)

Fan Running Current (Rated) A 5.83 7.4 7.49 9.40

Power Consumption (Rated) W 1,320 1,690 1,710 2,160 Power Factor % 98.4 99.3 99.3 99.9 Dimensions (H×W×D) inch 28-15/16×32-1/2×11-13/16 28-15/16×32-1/2×11-13/16 Packaged Dimensions (H×W×D) inch 31-7/16×37-15/16×15-3/8 31-7/16×37-15/16×15-3/8 Weight Lbs 117.0 117.0 Gross Weight Lbs 133.0 133.0 Operation

Sound Drawing No. 3D056381 3D056382

Indoor Units FTXS15DVJU FTXS18DVJU Outdoor Units

Btu/h 15,000 (6,800~15,000) 18,000 (6,800~21,200) 18,000 (6,800~18,000) 21,600 (6,800~24,000)

(Min.~Max.)

SEER 13.0 — 13.0 — HSPF —7.7—7.7 Liquid inch Gas inch Drain inch

Type Cross Flow Fan Cross Flow Fan Motor Ou tp u t W 43 43 Speed Steps 5 Steps, Quiet, Auto 5 Steps, Quiet, Auto

H/M/L dBA 45 / 41 / 36 44 / 40 / 35 45 / 41 / 36 44 / 40 / 35

Type Hermetically Sealed Swing Type Hermetically Sealed Swing Type Model 2YC32JXD 2YC32JXD Motor Output W 1,500 1,500 Model FVC50K FVC50K Charge oz 21.8 21.8 Model R-410A R-410A Charge Lbs 3.75 3.75

Type Propeller Propeller Motor Ou tp u t W 53 53

H / L dBA 51 / — 51 / — 51 / — 51 / —

W 1,360(450~1,360) 1,730(450~2,540) 1,750(450~1,750) 2,200(450~2,620)

Btu/h·W

oz/ft 0.22 0.22

H 519(14.7) 515(14.6) 549(15.5) 609(17.2)

M 436(12.3) 459(13.0) 476(13.5) 529(15.0)

L 353(10.0) 402(11.4) 402(11.4) 448(12.7)

H 1,603(45.4) 1,367(38.7) 1,603(45.4) 1,367(38.7) L 1,451(41.1) 1,367(38.7) 1,451(41.1) 1,367(38.7)

Coolin g Heating Cooling Heating

11.0 — 10.3 —

RX15FVJU RX18FVJU

1/4

1/2

11/16

1/4

1/2

11/16

Note:

The data are based on the conditions shown in the table below.



Cooling Heating Piping Length

Indoor ; 80°FDB/67°FWB

Outdoor ; 95°FDB/75°FWB

Indoor ; 70°FDB/60°FWB

Outdoor ; 47°FDB/43°FWB

25ft

Conversion Formulae

kcal/h=kW×860

Btu/h=kW×3414

cfm=m³/min×35.3

Specifications 5

Specifications SiUS04-702

60Hz 230V

Model

Capacity Rated (M in .~Max.)

Moistur e R e moval Pt/h 6.3 — Running Current (Rated) A 11.35 12.43 Power Consumption Rated Power Factor % 99.6 99.7 EER (Rated) COP (Rated) W/W — 2.47

Energy Efficiency

Piping Connections

Heat Insulation Both Liquid and Gas Pipes Max. Interunit Piping Length feet 98.4 Max. Interunit Height Difference feet 65.6 Chargeless feet 33 Amount of Additional Charge of

Refrigerant

Indoor Unit FTXS24DVJU

Front Panel Color White

Air Flow Rate cfm (m³/min)

Fan

Air Direction C o n tro l Right, Left, Horizontal, Downward Air Filter Removable / Washable / Mildew Proof Running Current (Rated) A 0.20 Power Consumption (Rated) W 45 Power Factor % 97.8 Temperature Control Microcomputer Control Dimensions (H×W×D) inch 11-7/16×41-5/16×9-3/8 Packaged Dimensions (H×W×D) inch 13-1/4×45-3/16×14-7/16 Weight Lbs 26.5 Gross Weight Lbs 38.0 Operation

Sound

Outdoor Unit RX24FVJU

Casing Color Ivory W h ite

Compressor

Refrigerant Oil

Refrigerant

Air Flow Ra te cfm (m³/min)

Fan Running Current (Rated) A 11.15 12.23

Power Consumption (Rated) W 2,555 2,805 Power Factor % 99.7 99.7 Dimensions (H×W×D) inch 28-15/16×32-1/2×11-13/16 Packaged Dimensions (H×W×D) inch 31-7/16×37-15/16×15-3/8 Weight Lbs 121.0 Gross Weight Lbs 137.0 Operation

Sound Drawing No. 3D056383

Indoor Units FTXS24DVJU Outdoor Units

Btu/h 22,000 (7,500~22,000) 24,000 (7,500~25,400)

(Min.~Max.)

SEER 13.0 — HSPF — 7.7 Liquid inch Gas inch Drain inch

Type Cross Flow Fan Motor Ou tp u t W 43 Speed Steps 5 Steps, Quiet, Auto

H/M/L dBA 46 / 42 / 37 46 / 42 / 37

Type Hermetically Sealed Swing Type Model 2YC45EXD Motor Output W 1,900 Model FVC50K Charge oz 25.2 Model R-410A Charge Lbs 3.75

Type Propeller Motor Ou tp u t W 53

H / L dBA 54 / — 54 / —

W 2,600(450~2,600) 2,850(450~3,320)

Btu/h·W

oz/ft 0.22

H 536(15.2) 586(16.6)

M 473(13.4) 532(15.1)

L 409(11.6) 477(13.5)

H 1,752(49.6) 1,465(41.5) L 1,529(43.3) 1,398(39.6)

Coolin g Heating

8.5 —

RX24FVJU

1/4

φ 5

11/16

Note:

The data are based on the conditions shown in the table below.



Cooling Heating Piping Length

Indoor ; 80°FDB/67°FWB

Outdoor ; 95°FDB/75°FWB

Indoor ; 70°FDB/60°FWB

Outdoor ; 47°FDB/43°FWB

25ft

Conversion Formulae

kcal/h=kW×860

Btu/h=kW×3414

cfm=m³/min×35.3

6 Specifications

SiUS04-702

Part 3

Printed Circuit Board

Connector Wiring Diagram

1. Printed Circuit Board Connector Wiring Diagram.......................................8

1.1 FTXS09/12DVJU......................................................................................... 8

1.2 FTXS15/18/24DVJU.................................................................................. 10

1.3 RX09/12FVJU ........................................................................................... 12

1.4 RX15/18/24FVJU ...................................................................................... 14

Printed Circuit Board Connector Wiring Diag ram 7

Printed Circuit Board Connector Wiring Diagram SiUS04-702

1. Printed Circuit Board Connector Wiring Diagram

1.1 FTXS09/12DVJU

Connectors PCB(1) (Cont r ol PC B) (indoo r unit)

PCB(2) (Signal Receiver PCB)

1) S1 Connector for fan motor

2) S6 Connector for swing motor (horizontal blades)

3) S7 Connector for fan motor (Hall IC)

4) S21 Connector for centralized control (HA)

5) S26 Connector for signal receiver PCB

6) S27 Connector for control PCB

7) S32 Connector for heat exchanger thermistor

8) S35 Connector for INTELLIGENT EYE sensor PCB

PCB(3) (INTELLIGENT EYE sensor PCB)

1) S36 Connector for control PCB

Note: Other designations

PCB(1) (Control PCB) (indoor unit) PCB(2) (Signal Receiver PCB)

1) V1 Varistor

2) JA Address setting jumper JB Fan speed setting when compressor is OFF on thermostat JC Power failure recovery function (auto-restart)

Refer to page 281 for detail.

3) SW7 Forced operation ON / OFF switch

4) LED1 LED for operation (green)

5) LED2 LED for tim e r (ye l low)

6) LED3 LED for HOME LEAVE operation (red)

7) FU1 Fuse (3.15A)

8) RTH1 Room temperature thermistor

9) LED A LED for service monitor (green)

∗

8 Printed Circuit Board Connector Wiring Diagram

SiUS04-702 Printed Circuit Board Connector Wiring Diagram

PCB Detail PCB(1): Control PCB (indoor unit)

PCB(2): Signal Receiver PCB

Control PCB

S21

V1 Fu1 S1

Signal Receiver PCB

SW7

LED1

LED2

LED3

RTH1 S27

S35

PCB(3): INTELLIGENT EYE sensor PCB

S36

S32JCJBJALED A

S26

(R4011)

(R3321)

Printed Circuit Board Connector Wiring Diag ram 9

Printed Circuit Board Connector Wiring Diagram SiUS04-702

1.2 FTXS15/18/24DVJU

Connectors PCB(1) (Cont r ol PC B) (indoo r unit)

1) S1 Connector for fan motor

2) S6 Connector for swing motor (horizontal blades)

3) S8 Connector for swing motor (vertical blades)

4) S21 Connector for centralized control (HA)

5) S26 Connector for buzzer PCB

6) S28 Connector for signal receiver PCB

7) S32 Connector for heat exchanger thermistor

8) S35 Connector for Intelligent Eye sensor PCB

PCB(2) (Signal Receiver PCB)

1) S29 Connector for control PCB

PCB(3) (Buzzer PCB)

1) S27 Connector for control PCB

2) S38 Connector for display PCB

PCB(4) (Display PCB)

1) S37 Connector for buzzer PCB

PCB(5) (INTELLIGENT EYE sensor PCB)

1) S36 Connector for control PCB

Note: Other designations

PCB(1) (Control PCB) (indoor unit)

1) V1 Varistor

2) JA Address setting jumper JB Fan speed setting when compressor is OFF on thermostat JC Power failur e recovery functio n

3) FU1 Fuse (3.15A)

4) LED A LED for service monitor (green)

PCB(2) (Signal Receiver PCB)

1) SW1 Forced operation ON/OFF switch

PCB(3) (Buzzer PCB)

1) RTH1 Room temperature thermistor

Refer to page 281 for detail.

∗

PCB(4) (Display PCB)

1) LED1 LED for operation (green)

2) LED2 LED for timer (yellow)

3) LED3 LED for Home Leave operation (red)

10 Printed Circuit Board Connector Wiring Diagram

SiUS04-702 Printed Circuit Board Connector Wiring Diagram

PCB Detail PCB(1): Control PCB (indoor unit)

FU1

S21

S35

S28S32JCJBJALED A

S26

(R2860)

PCB(2): Signal Receiver PCB PCB(3): Buzzer PCB

S27

SW1

S38

S29

(R2861)

RTH1

(R2862)

PCB(4): Display PCB PCB(5): INTELLIGENT EYE sensor PCB

LED1 LED2 LED3 S37

(R2863)

S36

(R2864)

Printed Circuit Board Connector Wiring Diag ram 11

Printed Circuit Board Connector Wiring Diagram SiUS04-702

1.3 RX09/12FVJU

Connectors PCB(1)(Filter PCB)

1) S11 Connector for control PCB

PCB(2)(Control PCB) (outdoor unit)

1) S10 Connector for filter PCB

2) S20 Connector for electronic expansion valve coil

3) S30 Connector for compressor motor

4) S40 Connector for overload protector

5) S70 Connector for fan motor

6) S80 Connector for four way valve coil

7) S90 Connector for thermistors (outdoor air, heat exchanger, discharge pipe)

8) HC3, HC4, HL3, HN3 Connector for filter PCB

Note: Other designations

PCB(1)(Filter PCB)

1) FU3 Fuse (20A)

2) V2, V3 Varistor

PCB(2)(Control PCB) (outdoor unit)

1) FU1, FU2 Fuse (3.15A)

2) LED A Service monitor LED

3) V1 Varistor

12 Printed Circuit Board Connector Wiring Diagram

SiUS04-702 Printed Circuit Board Connector Wiring Diagram

PCB Detail PCB(1): Filter PCB

V3 V2

FU3(20A)

S11

(R6969)

PCB(2): Control PCB (outdoor unit)

S30

HC3

HN3

S10

S40 LED A S90

S70

FU2(3.15A)

HC4

HL3FU1(3.15A)V1S80S20

(R6970)

Printed Circuit Board Connector Wiring Diag ram 13

Printed Circuit Board Connector Wiring Diagram SiUS04-702

1.4 RX15/18/24FVJU

Connectors PCB(1)(Control PCB) (outdoor unit)

1) S10, AC2 Connector for terminal strip

2) S20 Connector for electronic expansion valve coil

3) S31, S32 Connector for SPM

4) S33, S71 Connector for MID

5) S40 Connector for overload protector

6) S51, S101 Connector for service monitor PCB

7) S80 Connector for four way valve coil

8) S90 Connector for thermistors (outdoor air, heat exchanger, and discharge pipe)

9) S91 Connector for fin thermistor

10)AC1, E Connector for power supply PCB

11)H1, H2 Connector for diode bridge

PCB(2)(Power Supply PCB)

1) HL Connector for terminal strip

2) HAC1, HE1 Connector for control PCB

3) HE2 Connector for earth

PCB(3)(Service Monitor PCB)

1) S52, S102 Connector for control PCB

MID

1) S34, S72 Connector for control PCB

2) S70 Connector for fan motor

SPM

1) CN11, CN14 Connector for control PCB

2) L1, L2 Connector for reactor

Note: Other Designations

PCB(1)(Control PCB) (outdoor unit)

1) FU2 Fuse (3.15A)

PCB(2)(Power Supply PCB)

1) FU1 Fuse (30A)

2) V3 Varistor

PCB(3)(Service Monitor PCB)

1) LED A Service monitor LED

2) SW1 Forced operation ON/OFF switch

3) SW4 Local setting switch

MID

1) FU201 Fuse (3.15A)

14 Printed Circuit Board Connector Wiring Diagram

SiUS04-702 Printed Circuit Board Connector Wiring Diagram

PCB Detail PCB(1): Control PCB (outdoor unit)

E AC1 FU2(3.15A)

AC2

S32

S10

S33

S71

S80

S40S20S90S101S51

PCB(2): Power Supply PCB Servic e M onitor PCB

FU1(30A)

HAC1

HE1

HE2

(R2866)

S91

S52

SW1

S102 SW4

S31

(R6971)

LED A

(R5140)

Printed Circuit Board Connector Wiring Diag ram 15

Printed Circuit Board Connector Wiring Diagram SiUS04-702

MID

S34

S72

SPM

CN14

S70FU201 (3.15A)

(R2868)

CN11

L1 L2

(R2869)

16 Printed Circuit Board Connector Wiring Diagram

SiUS04-702

Part 4

Function and Control