Daikin Quaternity ftxg09hvju User manual

1645 Wallace Drive, Suite 110

Carrollton, TX75006

www.daikinac.com

AMERICAS

Specifications, designs and other content appearing in this brochure are current as of May 2009 but subject to change without notice.

SiUS04-921

Printed in U.S.A. 05/2009 B AK

SiUS04-921

Service Manual / Inverter Pair Wall Mounted Type H-Series

[Applied Models]

Inverter Pair : Heat Pump

Inverter Pair

Wall Mounted Type H-Series

SiUS04-921

Table of Contents i

Inverter Pair

Wall Mounted Type

H-Series

Heat Pump

Indoor Units

FTXG09HVJU

FTXG12HVJU

FTXG15HVJU

Outdoor Units

RXG09HVJU

RXG12HVJU

RXG15HVJU

1. SAFETY CONSIDERATIONS............................................................... vi

Part 1

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

1. 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 Indoor Unit................................................................................................8

1.2 Outdoor Unit ...........................................................................................10

SiUS04-921

ii Table of Contents

Part 4

Function and Control........................................................ 11

1. Description of Operation .......................................................................12

1.1 Indoor Unit..............................................................................................12

1.2 Outdoor Unit ...........................................................................................13

2. Main Functions......................................................................................14

2.1 QUATERNITY Drying Operation............................................................14

2.2 Comfort Sleep Operation........................................................................16

2.3 Automatic Operation...............................................................................18

2.4 Comfort Airflow Mode.............................................................................19

2.5 Cooling Breeze Operation ......................................................................20

2.6 Power-airflow Dual FlapsFins.................................................................21

2.7 Wide-angle LouversFins.........................................................................21

2.8 3-D Airflow..............................................................................................22

2.9 POWERFUL Operation ..........................................................................23

2.10 Indoor Unit Quiet Operation ...................................................................23

2.11 Multi-colored Indicator Lamp ..................................................................24

2.12 Monitor Brightness Setting .....................................................................24

2.13 Information Display.................................................................................25

2.14 Mold-Proof Stick .....................................................................................26

2.15 FLASH STREAMER AIR PURIFYING Operation ..................................27

2.16 Wipe-clean Flat Panel ............................................................................29

2.17 Filter Cleaning Indicator (Remote Controller).........................................30

2.18 TIMER Operation ...................................................................................30

2.19 Night Set Mode.......................................................................................31

2.20 Table for Special Modes.........................................................................32

2.21 Thermostat Control.................................................................................33

2.22 Fan Speed Control for Indoor Units........................................................34

2.23 Draft Prevention (Hot-Start)....................................................................36

3. Control Specification .............................................................................37

3.1 Frequency Control..................................................................................37

3.2 Preheating Operation (Quick Warming Function) ..................................38

3.3 Four Way Valve Operation .....................................................................38

3.4 Compressor Start-up Protection.............................................................39

3.5 Fan Speed Control for Outdoor Unit.......................................................40

3.6 Fin Thermistor Control............................................................................41

3.7 Input Current Control..............................................................................41

3.8 Peak-cut Control.....................................................................................42

3.9 Indoor Heat Exchanger Freeze-up Protection........................................43

3.10 Dew Prevention ......................................................................................44

3.11 Liquid Compression Protection 2 ...........................................................45

3.12 Discharge Pipe Temperature Control.....................................................45

3.13 Automatic Defrosting ..............................................................................46

3.14 Electronic Expansion Valve Control .......................................................47

SiUS04-921

Table of Contents iii

Part 5

System Configuration....................................................... 53

1. Installation Manual ................................................................................54

1.1 Indoor Units ............................................................................................54

1.2 Outdoor Units .........................................................................................64

2. System Configuration............................................................................70

3. Instruction..............................................................................................71

3.1 Remote Controller ..................................................................................71

3.2 Cooling · QUATERNITY DRYING Operation ........................................73

3.3 Heating Operation ..................................................................................74

3.4 AUTO Operation.....................................................................................75

3.5 FLASH STREAMER AIR PURIFYING · POWERFUL Operation ...........76

3.6 Adjusting Airflow Direction · Airflow Rate ...............................................77

3.7 COMFORT AIRFLOW · COOLING BREEZE Operation ........................78

3.8 TIMER Operation ...................................................................................79

3.9 COMFORT SLEEP Operation................................................................80

3.10 SET UP · CHILD PROOF LOCK ............................................................81

3.11 INFORMATION DISPLAY ......................................................................82

Part 6

Service Diagnosis............................................................ 83

1. Convenient Service Check Function .....................................................85

2. Troubleshooting ....................................................................................87

2.1 Error Code Indication by Remote Controller ..........................................87

2.2 Air conditioner does not run. ..................................................................88

2.3 Air conditioner runs but does not cool or heat .......................................91

2.4 When operation starts, safety breaker trips............................................93

2.5 Air conditioner makes a loud sound and vibrates...................................95

2.6 Indoor Unit PCB Abnormality .................................................................96

2.7 Peak-cut Control or Freeze-up Protection..............................................97

2.8 Fan Motor System (DC Motor) Abnormality ...........................................99

2.9 Streamer Unit Abnormality ...................................................................101

2.10 Thermistor System Abnormality ...........................................................103

2.11 Front Panel Open / Close Abnormality.................................................104

2.12 Humidity Sensor Abnormality ...............................................................105

2.13 Signal Transmission Error (Indoor Unit - Outdoor Unit) .......................106

2.14 Incompatible Power Supply between Indoor Unit and Outdoor Unit ....108

2.15 Outdoor Unit PCB Abnormality.............................................................109

2.16 OL Activation (Compressor Overload) .................................................110

2.17 Compressor Lock .................................................................................111

2.18 DC Fan Lock ........................................................................................112

2.19 Input Overcurrent Detection .................................................................113

2.20 Four-Way Valve Abnormality................................................................115

2.21 Discharge Pipe Temperature Control...................................................117

2.22 High Pressure Control in Cooling .........................................................118

SiUS04-921

iv Table of Contents

2.23 Compressor Sensor System Abnormality ............................................120

2.24 Position Sensor Abnormality ................................................................121

2.25 DC Voltage / DC Current Sensor Abnormality .....................................123

2.26 Thermistor System Abnormality ...........................................................124

2.27 Abnormal Temperature in Electrical Box..............................................126

2.28 Temperature Rise in Radiation Fin.......................................................128

2.29 Output Overcurrent...............................................................................130

2.30 Insufficient Gas.....................................................................................132

2.31 Over Voltage Protection / Low Voltage Protection ...............................134

2.32 Outdoor Unit PCB Abnormality or Communication Circuit Abnormality135

2.33 Signal Transmission Error on Outdoor Unit PCB .................................138

2.34 Lights-out of Microcomputer Status Lamp............................................140

3. Check ..................................................................................................141

3.1 Thermistor Resistance Check ..............................................................141

3.2 Installation Condition Check.................................................................142

3.3 Outdoor Fan System Check (DC Motor) ..............................................142

3.4 Power Supply Waveform Check...........................................................143

3.5 Main Circuit Electrolytic Capacitor Check ............................................143

3.6 Refrigerant System Check ...................................................................144

3.7 “Inverter Checker” Check .....................................................................145

3.8 Power Transistor Check .......................................................................146

3.9 Discharge Pressure Check...................................................................147

3.10 Electronic Expansion Valve Check.......................................................148

3.11 Indoor Unit PCB Output Check ............................................................149

3.12 Rotating Pulse Input on Outdoor Unit PCB Check ...............................150

3.13 Humidity Sensor Check........................................................................151

3.14 Main Circuit Short Check......................................................................151

3.15 Four-Way Valve Performance Check...................................................152

3.16 Solenoid Valve for Dehumidification Check .........................................153

Part 7

Removal Procedure ........................................................ 155

1. Indoor Unit...........................................................................................156

1.1 Removal of Air Filters / Front panel......................................................156

1.2 Removal of Upper Panel ......................................................................163

1.3 Removal of Front Grille ........................................................................166

1.4 Removal of Assembly of Open/Close Mechanism ...............................169

1.5 Removal of Assembly of Reduction Motor ...........................................171

1.6 Removal of Electrical Box ....................................................................174

1.7 Removal of PCB...................................................................................179

1.8 Removal of Dehumidifying Solenoid Valve Coil ...................................185

1.9 Removal of Drain Hose ........................................................................186

1.10 Removal of Swing Motor ......................................................................188

1.11 Removal of Heat Exchanger ................................................................190

1.12 Removal of Propeller Fan / Fan Motor .................................................193

1.13 Removal of Horizontal Blades / Vertical Blades ...................................196

1.14 Removal of Streamer Unit ....................................................................199

SiUS04-921

Table of Contents v

2. Outdoor Unit........................................................................................203

2.1 How to Check the Service Monitor (LED A) .........................................203

2.2 Removal of Propeller Fan / Fan Motor .................................................205

2.3 Removal of Electrical Box ....................................................................210

2.4 Removal of PCB...................................................................................214

2.5 Removal of Sound Blanket...................................................................218

2.6 Removal of Thermistor Assembly ........................................................220

2.7 Removal of Reactor / Partition Plate ....................................................222

2.8 Removal of Four Way Valve.................................................................224

2.9 Removal of the Expansion Valve .........................................................226

2.10 Removal of Compressor.......................................................................228

Part 8

Others Additional Information ....................................... 231

1. Additional Information .........................................................................232

1.1 Trial Operation......................................................................................232

1.2 Field Setting .........................................................................................233

1.3 Application of Silicon Grease to a Power Transistor and a Diode Bridge234

Part 9

Appendix......................................................................... 235

1. Piping Diagrams..................................................................................236

1.1 Indoor Units ..........................................................................................236

1.2 Outdoor Units .......................................................................................236

2. Wiring Diagrams..................................................................................237

2.1 Indoor Units ..........................................................................................237

2.2 Outdoor Units .......................................................................................237

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

SiUS04-921 Safety Considerations

vi Safety

1. SAFETY CONSIDERATIONS

Read these SAFETY CONSIDERATIONS carefully before

performing any repair work. Comply with these safety

symbols without fail.

Meanings of DANGER, WARNING, CAUTION, and NOTE

Symbols:

DANGER .............. Indicates an imminently hazardous

situation which, if not avoided, will

result in death or serious injury.

WARNING ............ Indicates a potentially hazardous

situation which, if not avoided, could

result in death or serious injury.

CAUTION ............. Indicates a potentially hazardous

situation which, if not avoided, may

result in minor or moderate injury. It

may also be used to alert against

unsafe practices.

NOTE .................. Indicates situations that may result

in equipment or property-damage

only.

1.1 Safety Considerations for Repair

DANGER

• If refrigerant gas leaks during repair or service,

ventilate the area immediately. Refrigerant gas may

produce toxic gas if it comes into contact with flames.

Refrigerant gas is heavier than air and replaces

oxygen. In the event of an accident, a massive leak

could lead to oxygen depletion, especially in

basements, and an asphyxiation hazard could occur

leading to serious injury or death.

• Do not start or stop the air conditioner operation by

plugging or unplugging the power cable plug if a

plug is used. Plugging or unplugging the power

cable plug to operate the equipment may cause an

electrical shock or fire.

• Use parts listed in the service parts list and

appropriate tools to conduct repair work. The use of

inappropriate parts or tools may cause an electrical

shock or fire.

• Disconnect power before disassembling the

equipment for repairs. Working on the equipment

that is connected to the power supply may cause an

electric shock. If it is necessary to supply power to

the equipment to conduct repairs or to inspect the

circuits, do not touch any electrically charged

sections of the equipment.

• The step-up capacitor supplies high-voltage

electricity to the electrical components of the

outdoor unit. Discharge the capacitor completely

before conducting repair work. A charged capacitor

may cause an electrical shock.

• If refrigerant gas is discharged during repair work,

do not touch the discharged refrigerant gas. The

refrigerant gas may cause frostbite.

• Use only pipes, flare nuts, tools, and other materials

designed specifically for R410A refrigerant systems.

Never use tools or materials designed for R22

refrigerant systems on an R410A refrigerant system.

Doing so can cause a serious accident or an

equipment failure.

• Check to see if the parts and wires are mounted 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 electrical shock.

WARNING

• Prior to disconnecting the suction or discharge pipe

from the compressor at the welded section,

pump-down the refrigerant gas completely in a well-

ventilated place first. If there is refrigerant gas or oil

remaining inside the compressor, the refrigerant gas or

oil can discharge when the pipe is being disconnected

and it may cause an injury.

• Wear a safety helmet, gloves, and a safety belt when

working at an elevated height of more than 6.5 ft (2 m).

Insufficient safety measures may cause a fall resulting

in injury.

• Do not mix air or gas other than the specified

refrigerant R410A to the refrigerant system. If air

enters the refrigerant systems, it can cause an

excessive high pressure resulting in equipment

damage and injury.

• When relocating the equipment, check if the new

installation site has sufficient strength to withstand

the weight of the equipment. If the installation site

does not have sufficient strength and the equipment

is not properly secured, the equipment may fall and

cause injury.

• Securely fasten the outside unit terminal cover

(panel). If the terminal cover/panel is not fastened

properly, dust or water may enter the outside unit

causing fire or electric shock.

• When relocating the system, keep the refrigerant

circuit free from substances other than the specified

refrigerant (R-410A) such as air. Any presence of air

or other foreign substance in the refrigerant circuit

can cause an abnormal pressure rise or rupture,

resulting in injury.

• If refrigerant gas leaks, locate the leaking point and

repair it before charging refrigerant. After charging

refrigerant, check for refrigerant leaks. If the leaking

point cannot be located and the repair work must be

stopped, perform a pump-down and close the

service valve to prevent the refrigerant gas from

Safety Considerations SiUS04-921

Safety Considerations vii

leaking into the room. The refrigerant gas itself is

harmless, but it may generate toxic gases if it comes

into contact with flames.

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

on it. Washing the unit with water may cause an

electrical shock.

• Ground the unit when repairing equipment in a

humid or wet place to avoid electrical shocks.

• Turn off the power when cleaning the equipment to

prevent internal fans that rotate at high speed from

starting suddenly as they can cause injury.

• Let the refrigerant lines cool down before performing

any repair work. Working on the unit when the

refrigerant lines are hot may cause burns.

• All welding and cutting operations must be done in a

well-ventilated place to prevent the accumulation of

toxic fumes or possibly oxygen deficiency to occur.

• Check the grounding and repair it if the equipment is

not properly grounded. Improper grounding may

cause an electrical shock.

• Measure the insulation resistance after the repair.

The resistance must be 1M or higher. Faulty

insulation may cause an electrical shock.

NOTE

• Check the drainage of the indoor unit after finishing

repair work. Faulty drainage may cause water to

enter the room resulting in wet floors and furniture.

• Do not tilt the unit when removing it. The water inside

the unit may spill resulting in wet floors and

furniture.

• Dismantling of the unit, disposal of the refrigerant,

oil, and additional parts, should be done in

accordance with the relevant local, state, and

national regulations.

1.2 Safety Considerations for Users

DANGER

• Never attempt to modify the equipment. Doing so can

cause electrical shock, excessive heat generation, or

fire.

• If the power cable and lead wires have scratches or

have become deteriorated, have them replaced.

Damaged cable and wires may cause an electrical

shock or fire.

• Do not use a joined power cable or an extension

cord, or share the same power outlet with other

electrical appliances as it may cause an electrical

shock or fire.

• Use an exclusive power circuit for the equipment.

Insufficient circuit amperage capacity may cause an

electrical shock or fire.

WARNING

• Do not damage or modify the power cable. Damaged

or modified power cables may cause an electrical

shock or fire. Placing heavy items on the power

cable or pulling the power cable may damage the

cable.

• Check the unit foundation for damage on a continual

basis, especially if it has been in use for a long time.

If left in a damaged condition, the unit may fall and

cause injury. If the installation platform or frame has

corroded, have it replaced. A corroded platform or

frame may cause the unit to fall resulting in injury.

• If the unit has a power cable plug and it is dirty, clean

the plug before securely inserting it into a power

outlet. If the plug has a loose connection, tighten it or

it may cause electrical shock or fire.

CAUTION

• After replacing the battery in the remote controller,

dispose of the old battery to prevent children from

swallowing it. If a child swallows the battery, see a

doctor immediately.

• Never remove the fan guard of the unit. A fan rotating

at high speed without the fan guard is very

dangerous.

• Before cleaning the unit, stop the operation of the

unit by turning the power off or by pulling the power

cable plug out from its receptacle. Otherwise an

electrical shock or injury may result.

• Do not wipe the controller operation panel with

benzene, thinner, chemical dust cloth, etc. The panel

may get discolored or the coating can peel off. If it is

extremely dirty, soak a cloth in a water-diluted neutral

detergent, squeeze it well, and wipe the panel clean.

Then wipe it with another dry cloth.

SiUS04-921 Safety Considerations

viii Safety

SiUS04-921

List of Functions 1

Part 1

List of Functions

1. Functions.................................................................................................2

Functions SiUS04-921

2List of Functions

1. Functions

(1) Inverter POWERFUL operation can be used for COOLING, DRY COOLING, and HEATING.

(2) The function setting is cancelled as it is restarted automatically.

(3) Temperature display -9°C~37°C(16~99°F )

Category Functions

FTXG09/12/15HVJU

RXG09/12/15HVJU

Category Functions

FTXG09/12/15HVJU

RXG09/12/15HVJU

Basic

Function

Inverter (with Inverter Power Control) Health &

Clean

Air-Purifying Filter —

Operation Limit for Cooling (°FDB) 14~

109 Photocatalytic Deodorizing Filter —

Operation Limit for Heating (°FWB) –4~

Air-Purifying Filter

with Photocatalytic Deodorizing Function —

PAM Control Titanium Apatite Photocatalytic

Air-Purifying Filter 

Energy Saving During Operation Standby —

Compressor Oval Scroll Compressor — Deodorizing Filter for Streamer 

Swing Compressor Flash Streamer Air-Purifying 

Rotary Compressor — Air Filter (Prefilter) 

Reluctance DC Motor Wipe-clean Flat Panel 

Comfortable

Airflow

Power-Airflow Flap — Washable Upper Grille 

Power-Airflow Dual Flaps Filter Cleaning Indicator (Remote Controller) 

Wide-Angle Louvers Mold Proof Operation —

Vertical Auto-Swing (Up and Down) Mold Shock Operation —

Horizontal Auto-Swing (Right and Left) Mold-Proof Stick 

3-D Airflow Comfort Sleep Operation 2

Comfort Airflow Mode Fresh Air Supply Ventilation —

COOLING BREEZE Operation Home Leave Ventilation —

Comfort

Control

Auto Fan Speed Timer Weekly Timer —

Indoor Unit Quiet Operation 24-Hour ON/OFF Timer 

Night Quiet Mode (Automatic) — Count Up-down ON/OFF Timer

OFF only

Outdoor Unit Quiet Operation (Manual) — Night Set Mode 

INTELLIGENT EYE — Worry Free

“Reliability &

Durability”

Auto-Restart (after Power Failure) 

2-Area INTELLIGENT EYE — Self-Diagnosis (Remote Controller) Display 

Quick Warming Function Wiring Error Check —

Hot-Start Function Anticorrosion Treatment of Outdoor Heat

Exchanger 

Automatic Defrosting Flexibility Multi-Split / Split Compatible Indoor Unit —

Operation Automatic Operation H/P, C/O Compatible Indoor Unit —

— Chargeless 

QUATERNITY Drying Operation Either Side Drain (Right or Left) 

DRY COOLING Operation Power Selection —

Program Dry Function —

Low Temperature Cooling Operation (-15°C (5°F)

—

Fan Only — °C/°F changeover R/C temperature display

(factory setting : °F) 3

Air-Purifying Operation 

Lifestyle

Convenience

New POWERFUL Operation (Non-Inverter) — Remote

Control

5-Rooms Centralized Controller (Option) 

Inverter POWERFUL Operation 1

2Remote Control Adaptor

(Normal Open-Pulse Contact) (Option) 

Dry Keep

JP set

Priority-Room Setting — Remote Control Adaptor

(Normal Open Contact) (Option) 

Cooling / Heating Mode Lock —

HOME LEAVE Operation — DIII-NET Compatible (Adaptor) (Option) 

ECONO Mode — Remote

Controller

Wireless 

Indoor Unit ON/OFF Switch Wired —

Signal Reception Indicator 

Multi-colored Indicator 

Monitor Brightness Setting 

Temperature & Humidity Level Information

Display (Remote Controller) 

Childproof Lock 

R/C with Back Light —

Note: : Included Functions

— : No Functions

SiUS04-921

Specifications 3

Part 2

Specifications

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

Specifications SiUS04-921

4Specifications

1. Specifications

60Hz 230V

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

Models

Indoor Units FTXG09HVJU FTXG12HVJU

Outdoor Units RXG09HVJU RXG12HVJU

Cooling Heating Cooling Heating

Capacity

Rated (Min.~Max.) Btu/h 9,000 (5,300~12,300) 12,000 (4,400~18,000) 12,000 (5,300~15,700) 16,000 (4,400~19,100)

Moisture Removal Pt/h 3.3 — 4.1 —

Running Current (Rated) A 3.10 4.04 4.30 5.64

Power Consumption Rated

(Min.~Max.)

W 570 (250~900) 780 (220~1,900) 860 (260~1,300) 1,160 (220~2,100)

Power Factor % 80.0 84.0 87.0 89.5

EER (Rated)

Btu/h·W

15.8 — 14.0 —

COP (Rated) W/W 4.6 4.5 4.1 4.0

Energy

Efficiency SEER/HSPF 26.1 11.0 24.2 10.6

Piping

Connections

Liquid inch (mm) φ1/4” (6.4 mm) φ1/4” (6.4 mm)

Gas inch (mm) φ3/8” (9.5 mm) φ3/8” (9.5 mm)

Drain inch (mm) φ 11/16” (17.5 mm) φ 11/16” (17.5 mm)

Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes

Max. Interunit Piping Length feet (m) 32 ft (9.8 m) 32 ft (9.8 m)

Max. Interunit Height Difference feet (m) 26 ft (8 m) 26 ft (8 m)

Chargeless — —

Amount of Additional Charge of

Refrigerant oz/ft — —

Indoor Units FTXG09HVJU FTXG12HVJU

Front Panel Color White White

Airflow Rate cfm (m³/min)

H 420 (11.9) 438 (12.4) 459 (13.0) 470 (13.3)

M 325 (9.2) 346 (9.8) 346 (9.8) 367 (10.4)

L 230 (6.5) 258 (7.3) 240 (6.8) 272 (7.7)

Fan

Type Cross Flow Fan Cross Flow Fan

Motor Output W 57 57

Speed Steps 5 Steps, Quiet and Auto 5 Steps, Quiet and Auto

Air Direction Control Right, Left, Horizontal and Downward Right, Left, Horizontal and Downward

Air Filter Removable / Washable / Mildew Proof Removable / Washable / Mildew Proof

Running Current (Rated) A 0.12 0.14 0.14 0.15

Power Consumption (Rated) W 24 26 29 31

Power Factor % 87 80.7 90.1 89.9

Temperature Control Microcomputer Control Microcomputer Control

Dimensions (H×W×D) inch (mm 12 × 35-1/16 × 8-1/4” (305 x 891 x 210 mm) 12 × 35-1/16 × 8-1/4” (305 x 891 x 210 mm)

Packaged Dimensions (H×W×D) inch (mm 11 × 37-5/8 × 14-7/8” (279 x 956 x 378 mm) 11 × 37-5/8 × 14-7/8” (279 x 956 x 378 mm)

Weight Lbs (kg) 31 lbs (14 kg) 31 lbs (14 kg)

Gross Weight Lbs (kg) 38 lbs (17 kg) 38 lbs (17 kg)

Operation Sound H/M/L dBA 42 / 33 / 26 42 / 35 / 28 43 / 35 / 27 43 / 36 / 29

Outdoor Units RXG09HVJU RXG12HVJU

Casing Color Ivory White Ivory White

Compressor

Type Hermetically Sealed Swing Type Hermetically Sealed Swing Type

Model 2YC36CXD 2YC36CXD

Motor Output W 1,100 1,100

Refrigerant

Oil

Type FVC50K FVC50K

Charge oz 13.5 13.5

Refrigerant Type R-410A R-410A

Charge Lbs 3.1 3.1

Airflow Rate cfm (m³/min) H 1,178 (33.4) 1,095 (31.0) 1,262 (35.7) 1,111 (31.5)

L————

Fan Type Propeller Propeller

Motor Output W 60 60

Running Current (Rated) A 2.98 3.9 4.16 5.49

Power Consumption (Rated) W 546 754 831 1,129

Power Factor % 79.7 84.1 86.9 89.4

Dimensions (H×W×D) inch (mm 22-3/8 ×31-5/16 ×11-1/4” (568 x 795 x 286 mm) 22-3/8 ×31-5/16 ×11-1/4” (568 x 795 x 286 mm)

Packaged Dimensions (H×W×D) inch (mm 25-3/16 × 36-7/16 × 14-7/8” (640 x 926 x 378 mm) 25-3/16 × 36-7/16 × 14-7/8” (640 x 926 x 378 mm)

Weight Lbs (kg) 99 lbs (45 kg) 99 lbs (45 kg)

Gross Weight Lbs (kg) 104 lbs (47 kg) 104 lbs (47 kg)

Operation

Sound H / L dBA 46 / — 46 / — 49 / — 48 / —

Drawing No. 3D062857 3D062858

Conversion Formulae

kcal/h=kW×860

Btu/h=kW×3414

cfm=m³/min×35.3

Cooling Heating Piping Length

Indoor ; 80°FDB/67°FWB

Outdoor ; 95°FDB/75°FWB

Indoor ; 70°FDB/60°FWB

Outdoor ; 47°FDB/43°FWB 25 ft (7.5 m)

SiUS04-921 Specifications

Specifications 5

60Hz 230V

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

Model

Indoor Units FTXG15HVJU

Outdoor Units RXG15HVJU

Cooling Heating

Capacity

Rated (Min.~Max.) Btu/h 15,000 (5,300~18,000) 18,000 (4,400~21,200)

Moisture Removal Pt/h 4.8 —

Running Current (Rated) A 5.64 6.36

Power Consumption Rated

(Min.~Max.)

W 1,160 (260~1,930) 1,320 (230~2,120)

Power Factor % 89.0 99.0

EER (Rated)

Btu/h·W

12.9 —

COP (Rated) W/W 3.8 4.0

Energy

Efficiency SEER/HSPF 21.0 10.0

Piping

Connections

Liquid inch (mm) φ1/4” (6.4 mm)

Gas inch (mm) φ3/8” (9.5 mm)

Drain inch (mm) φ 11/16” (17.5 mm)

Heat Insulation Both Liquid and Gas Pipes

Max. Interunit Piping Length feet (m) 32 ft (10 m)

Max. Interunit Height Difference feet (m) 26 ft (8 m)

Chargeless —

Amount of Additional Charge of

Refrigerant oz/ft —

Indoor Unit FTXG15HVJU

Front Panel Color White

Airflow Rate cfm (m³/min)

H 487 (13.8) 494 (14.0)

M 371 (10.5) 392 (11.1)

L 258 (7.3) 293 (8.3)

Fan

Type Cross Flow Fan

Motor Output W 57

Speed Steps 5 Steps, Quiet, Auto

Air Direction Control Right, Left, Horizontal, Downward

Air Filter Removable / Washable / Mildew Proof

Running Current (Rated) A 0.15 0.16

Power Consumption (Rated) W 33 35

Power Factor % 95.7 95.1

Temperature Control Microcomputer Control

Dimensions (H×W×D) inch (mm) 12 × 35-1/16 × 8-1/4” (305 x 891 x 210 mm)

Packaged Dimensions (H×W×D) inch (mm) 11 × 37-5/8 × 14-7/8” (279 x 956 x 378 mm)

Weight Lbs (kg) 31 lbs (14 kg)

Gross Weight Lbs (kg) 38 lbs (17 kg)

Operation

Sound H/M/L dBA 45 / 37 / 29 44 / 38 / 31

Outdoor Unit RXG15HVJU

Casing Color Ivory White

Compressor

Type Hermetically Sealed Swing Type

Model 2YC36CXD

Motor Output W 1,100

Refrigerant

Oil

Model FVC50K

Charge oz 13.5

Refrigerant Model R-410A

Charge Lbs 3.1

Airflow Rate cfm (m³/min) H 1,262 (35.7) 1,195 (33.8)

L— —

Fan Type Propeller

Motor Output W 60

Running Current (Rated) A 5.49 6.2

Power Consumption (Rated) W 1,127 1,285

Power Factor % 89.3 90.1

Dimensions (H×W×D) inch (mm) 22-3/8 ×31-5/16 ×11-1/4” (568 x 795 x 286 mm)

Packaged Dimensions (H×W×D) inch (mm) 25-3/16 × 36-7/16 × 14-7/8” (640 x 926 x 378 mm)

Weight Lbs (kg) 99 lbs (45 kg)

Gross Weight Lbs (kg) 104 lbs (47 kg)

Operation

Sound H / L dBA 50 / — 50 / —

Drawing No. 3D062859

Conversion Formulae

kcal/h=kW×860

Btu/h=kW×3414

cfm=m³/min×35.3

Cooling Heating Piping Length

Indoor ; 80°FDB/67°FWB

Outdoor ; 95°FDB/75°FWB

Indoor ; 70°FDB/60°FWB

Outdoor ; 47°FDB/43°FWB 25 ft (7.5 m)

Specifications SiUS04-921

6Specifications

SiUS04-921

Printed Circuit Board Connector Wiring Diagram 7

Part 3

Printed Circuit Board

Connector Wiring Diagram

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

1.1 Indoor Unit................................................................................................8

1.2 Outdoor Unit ...........................................................................................10

Printed Circuit Board Connector Wiring Diagram SiUS04-921

8Printed Circuit Board Connector Wiring Diagram

1. Printed Circuit Board Connector Wiring Diagram

1.1 Indoor Unit

Connectors A1P (Control PCB)

A2P (Display PCB)

A3P (Signal Receiver/Transmitter PCB)

A4P (Humidity Sensor PCB)

A5P (Streamer Unit PCB)

Note: Other designations

A1P (Control PCB)

A2P (Display PCB)

A4P (Humidity Sensor PCB)

1) S1 Connector for fan motor

2) S21 Connector for centralized control (HA)

3) S32 Connector for heat exchanger thermistor (R1T)

4) S41 Connector for swing motor (horizontal, vertical)

5) S43 Connector for solenoid valve

6) S46 Connector for display PCB

7) S48 Connector for humidity sensor PCB

8) S51 Connector for reduction motor, limit switch (front panel)

9) S52 Connector for streamer unit

1) S56 Connector for control PCB

2) S57 Connector for signal receiver / transmitter PCB

3) S63 (H1P) Connector for LED PCB (multi monitor)

1) S58 Connector for display PCB

1) CN1 Connector for control PCB

1) S401 Connector for control PCB

2) S402 Connector for limit switch for streamer

3) S403 Connector for streamer

1) V1 Varistor

2) FU1 Fuse (3.15A)

3) LED A LED for service monitor (green)

4) JB

Fan speed setting when compressor is OFF on thermostat

Power failure recovery function (auto-restart)

*Refer to page 233 for details.

1) JA Address setting jumper

2) SW1 (S1W) Forced operation ON / OFF switch

3) LED2 LED for timer (orange)

1) R2T Room temperature thermistor

SiUS04-921 Printed Circuit Board Connector Wiring Diagram

Printed Circuit Board Connector Wiring Diagram 9

PCB Detail PCB(1): Control PCB

PCB(2): Display PCB PCB(3): Signal Receiver / Transmitter PCB

PCB(4): Humidity sensor PCB PCB(5): Streamer Unit PCB

FU1V1JBJC

S32

S48

S21

S43

LED A

S46

S52 S41 S1S51

(R0001)

JA S56

SW1

LED2

S57

S63

(R10056)

S58

(R5946)

R2T

CN1

Humidity

sensor

(R5947)

S403

S401

S402

(R5948)

Printed Circuit Board Connector Wiring Diagram SiUS04-921

10 Printed Circuit Board Connector Wiring Diagram

1.2 Outdoor Unit

Connectors

Note:

Other designations

PCB Detail PCB(1): Control PCB

1) S20 Connector for electronic expansion valve coil

2) S45 Connector for thermal fuse

3) S70 Connector for DC fan motor

4) S80 Connector for four-way valve coil

5) S90 Connector for thermistor (outdoor, heat exchanger,

discharge pipe)

1) FU1, FU2 Fuse (3.15A)

2) FU3 Fuse (30A)

3) V1, V2 Varistor

4) LED A LED for service monitor (green)

5) LED5 LED for inverter (green)

(R10057)

FU1

FU3 V2 FU2

LED A

S20 S80 S70 S90 LED 5S45

SiUS04-921

Function and Control 11

Part 4

Function and Control