Daikin FT25CV1A, FT35CV1A, FT50CV1A, FT60CV1A, R25CV1A Service Manual

Si01-406

SPLIT Pair
C-Series

[Applied Models]

zzzzNon-Inverter Pair : Cooling Only

zzzzNon-Inverter Pair : Heat Pump

Si01-406

Table of Contents i

Non Inverter Pair

Non Inverter PairNon Inverter Pair

Non Inverter Pair

C-Series

C-SeriesC-Series

C-Series

zCooling Only

Indoor Unit

FT25CV1A FT35CV1A FT50CV1A FT60CV1A

Outdoor Unit

R25CV1A R35CV1A R50CV1A R60CV1A

zHeat Pump

Indoor Unit

FTY25CVMA FTY35CVMA

Outdoor Unit

RY25CVMA RY35CVMA

Si01-406

ii Table of Contents

1. Introduction ........................................................................................... vii

1.1 Safety Cautions ...................................................................................... vii

Part 1 List of Function .................................................................1

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

Part 2 Specifications ................................................................... 5

1. Specifications..........................................................................................6

Part 3 Printed Circuit Board Connector Wiring Diagram ...........11

1. Printed Circuit Board Connector Wiring Diagram..................................12

1.1 FT25/35CV1A.........................................................................................12

1.2 FT50/60CV1A.........................................................................................14

1.3 FTY25/35CVMA .....................................................................................16

1.4 RY25/35CVMA .......................................................................................18

Part 4 Functions and Control......................................................21

1. Functions of Cooling Only Models ........................................................22

1.1 Cooling Monitoring Function...................................................................22

1.2 Programme Dry Function .......................................................................23

1.3 Freeze-up Protection Control .................................................................24

1.4 Air Flow Rate Control .............................................................................25

1.5 Power-Airflow Dual Flaps, Wide-Angle Louvers, and Auto-Swing .........25

1.6 Signal Receiving Sign ............................................................................26

1.7 ON / OFF Button on Indoor Unit.............................................................26

1.8 Filters......................................................................................................26

1.9 Night Set Mode.......................................................................................27

1.10 Powerful Operation.................................................................................27

1.11 3-minutes Standby Function...................................................................27

1.12 Auto-restart Function..............................................................................28

1.13 Test Run Function ..................................................................................28

2. Functions of Heat Pump Models...........................................................29

2.1 Frequency Principle................................................................................29

2.2 Power-Airflow Dual Flaps, Wide-Angle Louvers and Auto-Swing ..........31

2.3 Fan Speed Control for Indoor Units........................................................32

2.4 Programme Dry Function .......................................................................33

2.5 Automatic Operation...............................................................................34

2.6 Night Set Mode.......................................................................................35

2.7 Powerful Operation.................................................................................36

2.8 Other Functions......................................................................................37

2.9 Function of Thermistor ...........................................................................38

3. Control for Heat Pump Models..............................................................39

3.1 Mode Hierarchy ......................................................................................39

3.2 Frequency Control..................................................................................40

3.3 Controls at Mode Changing / Start-up....................................................42

3.4 Input Current Control ..............................................................................43

3.5 Freeze-up Protection Control .................................................................43

3.6 Heating Peak-cut Control .......................................................................44

3.7 Fan Control.............................................................................................44

Si01-406

Table of Contents iii

3.8 Liquid Compression Protection Function 1

(Securing of Differential Pressure and Blown Air Temperature) ............45

3.9 Liquid Compression Protection Function 2.............................................46

3.10 Defrost Control .......................................................................................46

3.11 Insufficient Gas Control ..........................................................................47

3.12 Forced Operation Mode .........................................................................48

3.13 Additional Function .................................................................................48

Part 5 System Configuration.......................................................49

1. System Configuration............................................................................50

2. Instructions............................................................................................51

2.1 Manual Contents by Models...................................................................51

2.2 Safety Precautions .................................................................................52

2.3 Names of Parts.......................................................................................54

2.4 Preparation before Operation .................................................................63

2.5 AUTO • DRY • COOL • HEAT • FAN Operation.....................................66

2.6 Adjusting the Air Flow Direction .............................................................68

2.7 POWERFUL Operation ..........................................................................69

2.8 TIMER Operation ...................................................................................70

2.9 Care and Cleaning .................................................................................72

2.10 Troubleshooting......................................................................................78

Part 6 Service Diagnosis.............................................................81

1. Troubleshooting by Lamps....................................................................82

2. Problem and Solution............................................................................83

3. Service Check Function ........................................................................84

3.1 ARC423 Series Remote Controller ........................................................84

3.2 ARC433 Series Remote Controller ........................................................85

4. Troubleshooting ....................................................................................86

4.1 Error Codes ............................................................................................86

4.2 Indoor Unit PCB Abnormality .................................................................87

4.3 Freeze-up Protection Control or High Pressure Control.........................88

4.4 Fan Motor or Related Abnormality .........................................................90

4.5 Thermistor or Related Abnormality (Indoor Unit)....................................93

4.6 Indoor Unit PCB Abnormality .................................................................94

4.7 Signal Transmission Error (between Indoor and Outdoor Units)............95

4.8 OL Activation (Compressor Overload) ...................................................96

4.9 Compressor Lock ...................................................................................97

4.10 Input Over Current Detection .................................................................98

4.11 Four Way Valve Abnormality ..................................................................99

4.12 High Pressure Control in Cooling .........................................................101

4.13 CT or Related Abnormality ...................................................................103

4.14 Thermistor or Related Abnormality (Outdoor Unit)...............................105

4.15 Electrical Box Temperature Rise..........................................................107

4.16 Radiation Fin Temperature Rise ..........................................................109

4.17 Output Over Current Detection.............................................................111

4.18 Insufficient Gas.....................................................................................113

5. Check ..................................................................................................115

5.1 Fan Motor Connector Output Check ....................................................115

5.2 Four Way Valve Performance Check ...................................................115

Si01-406

iv Table of Contents

5.3 Thermistor Resistance Check ..............................................................116

5.4 Installation Condition Check .................................................................117

5.5 Discharge Pressure Check...................................................................118

5.6 Outdoor Unit Fan System Check..........................................................119

5.7 Power Supply Waveforms Check .........................................................119

5.8 Inverter Units Refrigerant System Check .............................................120

5.9 Capacitor Voltage Check......................................................................120

5.10 Power Transistor Check .......................................................................121

5.11 Hall IC Check .......................................................................................122

5.12 Power Transistor Output Check ...........................................................123

5.13 Inverter Units Compressor / Refrigerant System Check ......................124

Part 7 Removal Procedure ........................................................125

1. FT25/35CV1A, FTY25/35CVMA .........................................................126

1.1 Removal of Air Filter.............................................................................126

1.2 Removal of Front Grille ........................................................................129

1.3 Removal of Horizontal Blades / Vertical Blades ...................................132

1.4 Removal of Electrical Parts Box / PCB / Swing Motor..........................134

1.5 Removal of Heat Exchanger ................................................................140

1.6 Install of Drain Plug ..............................................................................143

1.7 Removal of Fan Rotor / Fan Motor.......................................................144

2. FT50/60CV1A .....................................................................................148

2.1 Removal of Air Filter / Front Panel .......................................................148

2.2 Removal of Front Grille ........................................................................151

2.3 Removal of Horizontal Blades / Vertical Blades ...................................153

2.4 Removal of Electrical Parts Box / PCB / Swing Motor..........................155

2.5 Removal of Heat Exchanger ................................................................160

2.6 Removal of Fan Rotor / Fan Motor.......................................................163

3. R25/35CV1A, RY25/35CVMA.............................................................165

3.1 Removal of Panels ...............................................................................165

3.2 Removal of Bellmouth and Left Side Plate ...........................................167

3.3 Removal of Electrical Device Mounting Plate.......................................168

3.4 Removal of Propeller Fan and Fan Motor ............................................169

3.5 Removal of Compressor Noise Absorption Pad...................................170

3.6 Removal of Partition Plate....................................................................172

3.7 Removal of Compressor.......................................................................174

4. R50/60CV1A .......................................................................................175

4.1 Removal of Panels ...............................................................................175

4.2 Removal of Electrical Parts Box ...........................................................176

4.3 Removal of Compressor.......................................................................179

Part 8 Others .............................................................................181

1. Others .................................................................................................182

1.1 Test Run from the Remote Controller ..................................................182

1.2 Jumper Settings ...................................................................................184

Part 9 Appendix.........................................................................185

1. Piping Diagrams..................................................................................186

1.1 Indoor Units ..........................................................................................186

1.2 Outdoor Units .......................................................................................187

Si01-406

Table of Contents v

2. Wiring Diagrams..................................................................................190

2.1 Indoor Units ..........................................................................................190

2.2 Outdoor Units .......................................................................................191

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

Drawings & Flow Charts ................................................................ v

Si01-406

vi Table of Contents

Si01-406 Introduction

vii

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 an item for which caution must be exercised.

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

This symbol indicates a prohibited action.

The prohibited item or action is shown inside or near the symbol.

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

The instruction is shown inside 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 Caution in Repair

Warning

Be sure to disconnect the power cable plug from the plug socket before
disassembling the equipment for a repair.
Working on the equipment that is connected to a power supply can cause 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 discharges during the repair work, do not touch the
discharging refrigerant gas.
The refrigerant gas can cause frostbite.

When disconnecting the suction or discharge pipe of the compressor at the
welded section, release 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 discharges when the pipe is disconnected, and it can
cause injury.

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

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 can cause an electrical shock.

Do not start or stop the air conditioner operation by plugging or unplugging the
power cable plug.
Plugging or unplugging the power cable plug to operate the equipment can
cause an electrical shock or fire.

Introduction Si01-406

viii

1.1.2 Cautions Regarding Products after Repair

Caution

Do not repair the electrical components with wet hands.
Working on the equipment with wet hands can cause an electrical shock.

Do not clean the air conditioner by splashing water.
Washing the unit with water can 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 cause injury.

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

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

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

Warning

Be sure to use parts listed in the service parts list of the applicable model and
appropriate tools to conduct repair work. Never attempt to modify the
equipment.
The use of inappropriate parts or tools can cause an electrical shock,
excessive heat generation or fire.

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 can fall and cause injury.

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

For integral units
only

Be sure to install the product securely in the installation frame mounted on a
window frame.
If the unit is not securely mounted, it can fall and cause injury.

For integral units
only

Be sure to use an exclusive power circuit for the equipment, and follow the
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 can cause an
electrical shock or fire.

Si01-406 Introduction

ix

1.1.3 Inspection after Repair

Be sure to use the specified cable to connect between the indoor and outdoor
units. Make the connections securely and route the cable properly so that there
is no force pulling the cable at the connection terminals.
Improper connections can cause excessive heat generation or fire.

When connecting the cable 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 can cause
an electrical shock, excessive heat generation or fire.

Do not damage or modify the power cable.
Damaged or modified power cable can cause an electrical shock or fire.
Placing heavy items on the power cable, and heating or pulling the power cable
can damage the cable.

Do not mix air or gas other than the specified refrigerant (R410A / 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 leak and repair it before
charging the refrigerant. After charging refrigerant, make sure that there is no
refrigerant leak.
If the leak cannot be located and the repair work must be stopped, 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 can
generate toxic gases when it contacts flames, such as fan and other heaters,
stoves and ranges.

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.

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 a combustible gas leaks and remains around the unit, it can cause a fire.

Be sure to install the packing and seal on the installation frame properly.
If the packing and seal are not installed properly, water can enter the room and
wet the furniture and floor.

For integral units
only

Warning

Check to make sure that the power cable plug is not dirty or loose, then insert
the plug into a power outlet all the way.
If the plug has dust or loose connection, it can cause an electrical shock or fire.

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

Introduction Si01-406

x

1.1.4 Using 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:

1.1.5 Using Icons List

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

Warning

Caution

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 can cause excessive heat generation,
fire or an electrical shock.

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

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

Be sure to measure the insulation resistance after the repair, and make sure
that the resistance is 1 Mohm or higher.
Faulty insulation can cause an electrical shock.

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

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 “caution” is used when there is danger that the reader, through

incorrect manipulation, may damage equipment, loose data, get
an unexpected result or has to restart (part of) a procedure.

Warning

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

Reference A “reference” guides the reader to other places in this binder or

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

Si01-406

List of Function 1

Part 1

Part 1Part 1

Part 1

List of Function

List of Function List of Function

List of Function

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

Functions Si01-406

2 List of Function

1. Functions

Category Functions

FT25·35CV1A

R25·35CV1A

FT50·60CV1A

R50·60CV1A

Category Functions

FT25·35CV1A

R25·35CV1A

FT50·60CV1A

R50·60CV1A

Basic
Function

Inverter
(with Inverter Power Control)

——

Health &
Clean

Air Purifying Filter with Bacteriostatic,
Virustatic Functions

——

Operation Limit for Cooling (°CDB)

19.4
~46

19.4
~46

Operation Limit for Heating (°CWB) — — Photocatalytic Deodorizing Filter — —

PAM Control — —

Air Purifying Filter with Photocatalytic
Deodorizing Function

{{

Compressor

Oval Scroll Compressor — —

Titanium Apatite Photocatalytic
Air-Purifying Filter

——

Swing Compressor — —

Rotary Compressor

{{

Mold Proof Air Filter

{{

Reluctance DC Motor — — Wipe-clean Flat Panel

{{

Comfortable
Airflow

Power-Airflow Flap — — Washable Grille — —

Power-Airflow Dual Flaps

{{

Filter Cleaning Indicator — —

Power-Airflow Diffuser — — Good-Sleep Cooling Operation — —

Wide-Angle Louvers

{{

Timer

24-Hour On/Off Timer

{{

Vertical Auto-Swing
(Up and Down)

{{

Night Set Mode

{{

Horizontal Auto-Swing
(Right and Left)

——

Worry Free
“Reliability &
Durability”

Auto-Restart
(after Power Failure)

{{

3-D Airflow — —

Self-Diagnosis (Digital, LED) Display

{★{

★

Comfort Airflow Mode — —

3-Step Airflow (H/P Only) — — Wiring Error Check — —

Comfort
Control

Auto Fan Speed

{{

Anticorrosion Treatment of Outdoor
Heat Exchanger

{{

Indoor Unit Silent Operation — —

Night Quiet Mode (Automatic) — —

Flexibility

Multi-Split / Split Type Compatible
Indoor Unit

——

Outdoor Unit Silent Operation (Manual) — —

Intelligent Eye — — Flexible Voltage Correspondence — —

Quick Warming Function — — High Ceiling Application — —

Hot-Start Function — —

Chargeless 10m 10m

Either Side Drain (Right or Left)

{{

Automatic Defrosting — — Power Selection — —

Operation

Automatic Operation — —

Remote
Control

5-Rooms Centralized Controller
(Option)

{{

Programme Dry Function

{{

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

{{

Fan Only

{{

Lifestyle
Convenience

New Powerful Operation
(Non-Inverter)

{{

Remote Control Adaptor
(Normal Open Contact)
(Option)

{{

Inverter Powerful Operation — —

Priority-Room Setting — — DIII-NET Compatible (Adaptor)(Option) — —

Cooling / Heating Mode Lock — —

Remote
Controller

Wireless

{{

Home Leave Operation — — Wired — —

Indoor Unit On/Off Switch

{{

Signal Reception Indicator

{{

Temperature Display — —

Another Room Operation — —

Note:

{

: Holding Functions

— : No Functions

★

: Digital Only

Si01-406 Functions

List of Function 3

Category Functions

FTY25·35CVMA

RY25·35CVMA

Category Functions

FTY25·35CVMA

RY25·35CVMA

Basic Function

Inverter (with Inverter Power Control) —

Health & Clean

Air Purifying Filter with Bacteriostatic,
Virustatic Functions

—

Operation Limit for Cooling (°CDB)

10

~46

Operation Limit for Heating (°CWB)

–10
~20

Photocatalytic Deodorizing Filter —

PAM Control —

Air Purifying Filter with Photocatalytic
Deodorizing Function

{

Compressor

Oval Scroll Compressor —

Titanium Apatite Photocatalytic
Air-Purifying Filter

—

Swing Compressor —

Rotary Compressor

{

Mold Proof Air Filter

{

Reluctance DC Motor — Wipe-clean Flat Panel

{

Comfortable
Airflow

Power-Airflow Flap — Washable Grille —

Power-Airflow Dual Flaps

{

Filter Cleaning Indicator —

Power-Airflow Diffuser — Good-Sleep Cooling Operation —

Wide-Angle Louvers

{

Timer

24-Hour On/Off Timer

{

Vertical Auto-Swing (Up and Down)

{

Night Set Mode

{

Horizontal Auto-Swing (Right and Left) —

Worry Free
“Reliability &
Durability”

Auto-Restart (after Power Failure)

{

3-D Airflow — Self-Diagnosis (Digital, LED) Display

{

★

Comfort Airflow Mode — Wiring Error Check —

3-Step Airflow (H/P Only) —

Anticorrosion Treatment of Outdoor Heat
Exchanger

{

Comfort Control

Auto Fan Speed

{

Indoor Unit Silent Operation —

Flexibility

Multi-Split / Split Type Compatible Indoor
Unit

—

Night Quiet Mode (Automatic) —

Outdoor Unit Silent Operation (Manual) — Flexible Voltage Correspondence

{

Intelligent Eye — High Ceiling Application —

Quick Warming Function

{

Chargeless 10m

Hot-Start Function

{

Either Side Drain (Right or Left)

{

Automatic Defrosting

{

Power Selection —

Operation

Automatic Operation

{

Remote Control

5-Rooms Centralized Controller (Option)

{

Programme Dry Function

{

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

{

Fan Only

{

Lifestyle
Convenience

New Powerful Operation (Non-Inverter)

{

Remote Control Adaptor
(Normal Open Contact)(Option)

{

Inverter Powerful Operation —

Priority-Room Setting — DIII-NET Compatible (Adaptor)(Option) —

Cooling / Heating Mode Lock —

Remote
Controller

Wireless

{

Home Leave Operation — Wired —

Indoor Unit On/Off Switch

{

Signal Reception Indicator

{

Temperature Display —

Another Room Operation —

Note:

{

: Holding Functions

— : No Functions

★

: Digital Only

Functions Si01-406

4 List of Function

Si01-406

Specifications 5

Part 2

Part 2Part 2

Part 2

Specifications

Specifications Specifications

Specifications

1. Specifications..........................................................................................6

Specifications Si01-406

6 Specifications

1. Specifications

220-230-240V 50Hz

Notes:



MAX. interunit piping length: 25m



MAX. interunit height difference: 15m



Amount of additional charge of refrigerant 20g/m for piping length exceeding 10m



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



The data on the conditions (AS/NZS3823.1):

(Conditions)

Model

Indoor Units FT25CV1A FT35CV1A
Outdoor Units R25CV1A R35CV1A

Capacity

kW 2.64 3.52

Btu/h 9,000 12,000

kcal/h 2,270 3,000
Moisture Removal L/h 1.2 1.9
Running Current A 3.95-4.00-4.10 5.58-5.60-5.62
Power Consumption W 817-843-868 1,135-1,170-1,200
Power Factor % 94.0-91.6-88.2 92.5-90.8-89.0
COP W/W 3.23-3.13-3.04 3.10-3.01-2.93

Piping
Connections

Liquid mm

φ

6.4

φ

6.4

Gas mm

φ

9.5

φ

12.7

Drain mm

φ

18.0

φ

18.0

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

Indoor Unit FT25CV1A FT35CV1A

Front Panel Color White White

Air Flow Rate m³/min (cfm)

H 8.3 (291) 8.4 (297)
M 6.7 (235) 7.0 (247)
L 5.0 (176) 5.5 (194)

Fan

Type Cross Flow Fan Cross Flow Fan
Motor Output W 18 18

Speed Steps 5 Steps and Auto 5 Steps 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 A 0.22-0.22-0.23 0.22-0.22-0.23
Power Consumption W 45-47-51 45-47-51
Power Factor % 93.0-92.9-92.3 93.0-92.9-92.3
Temperature Control Microcomputer Control Microcomputer Control
Dimensions (H×W×D) mm 273×784×195 273×784×195
Packaged Dimensions (H×W×D) mm 258×834×325 258×834×325
Weight kg 8 8
Gross Weight kg 11 11
Operation

Sound

H/M/L dBA 38/34/28 39/35/31

Outdoor Unit R25CV1A R35CV1A

Casing Color Ivory White Ivory White

Compressor

Type Hermetically Sealed Rotary Type Hermetically Sealed Rotary Type

Model RC30BV1R2T RC46AV1TRT

Motor Output W 700 1,100
Refrigerant

Oil

Type SUNISO 4GSD. I. SUNISO 4GSD. I.

Charge L 0.40 0.50

Refrigerant

Type R22 R22

Charge kg 0.76 0.95

Air Flow Rate m³/min (cfm)

H 28-29-30 (988-1,024-1,059) 26.5-27-28 (935-953-988)
L — (—) — (—)

Fan

Type Propeller Propeller

Motor Output W 25 25
Running Current A 3.73-3.78-3.87 5.36-5.38-5.39
Power Consumption W 772-796-817 1,090-1,123-1,149
Power Factor % 94.1-91.6-88.0 92.4-90.8-88.8
Starting Current A 19-20-21 26-27-28
Dimensions (H×W×D) mm 560×695×265 560×695×265
Packaged Dimensions (H×W×D) mm 599×797×310 599×797×310
Weight kg 27 33
Gross Weight kg 30 35
Operation Sound dBA 46-47-48 48-48-49
Drawing No. 3D045880 3D045881A

Conversion Formulae

kcal/h=kW×860

Btu/h=kW×3414

cfm=m³/min×35.3

Standard Cooling Piping Length

JIS C 9612

Indoor ; 27°CDB/19°CWB

Outdoor ; 35°CDB/24°CWB

5m

(Rated) FT25CV1A FT35CV1A
Capacity kW 2.49 3.32
Running Current A 4.28 5.41
Power Consumption W 900 1,200
COP W/W 2.77 2.77

Standard Cooling Piping Length Power Supply

AS/NZS3823.1

Indoor ; 27°CDB/19°CWB

Outdoor ; 35°CDB/24°CWB

7.5m 50Hz 230V

Si01-406 Specifications

Specifications 7

220-230-240V 50Hz

Notes:



MAX. interunit piping length: 30m



MAX. interunit height difference: 15m



Amount of additional charge of refrigerant 20g/m for piping length exceeding 10m



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



The data on the conditions (AS/NZS3823.1):

(Conditions)

Models

Indoor Units FT50CV1A FT60CV1A
Outdoor Units R50CV1A R60CV1A

Capacity

kW 5.3 6.6

Btu/h 18,100 22,500

kcal/h 4,560 5,680
Moisture Removal L/h 2.9 5.2
Running Current A 7.4-7.3-7.2 11.0-10.9-10.8
Power Consumption W 1,600 2,390
Power Factor % 98.3-95.3-92.6 98.8-95.3-92.2
COP W/W 3.31 2.76

Piping
Connections

Liquid mm

φ

6.4

φ

6.4

Gas mm

φ

15.9

φ

15.9

Drain mm

φ

18.0

φ

18.0

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

Indoor Units FT50CV1A FT60CV1A

Front Panel Color White White

Air Flow Rate m³/min (cfm)

H 16.2 (572) 17.5 (618)

M 14.0 (494) 15.0 (530)

L 11.9 (420) 12.5 (441)

Fan

Type Cross Flow Fan Cross Flow Fan
Motor Output W 43 43

Speed Steps 5 Steps and Auto 5 Steps 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 A 0.19-0.18-0.17 0.21-0.20-0.19
Power Consumption W 40 45
Power Factor % 95.7-96.6-98.0 97.4-97.8-98.7
Temperature Control Microcomputer Control Microcomputer Control
Dimensions (H×W×D) mm 290×1,050×238 290×1,050×238
Packaged Dimensions (H×W×D) mm 337×1,147×366 337×1,147×366
Weight kg 12 12
Gross Weight kg 17 17
Operation

Sound

H/M/L dBA 43/39/35 46/41/36

Outdoor Units R50CV1A R60CV1A

Casing Color Ivory White Ivory White

Compressor

Type Hermetically Sealed Rotary Type Hermetically Sealed Rotary Type

Model RC60V1TNRT NH41VMDT

Motor Output W 1, 500 2,200
Refrigerant

Oil

Type SUNISO 4GSD. I. MS-32

Charge L 0.85 1.20

Refrigerant

Type R22 R22

Charge kg 1.35 1.70

Air Flow Rate m³/min (cfm)

H 29-29.5-30 (1,024-1,041-1,059) 40-40.5-41 (1,412-1,430-1,447)
L — (—) 23-24-25 (812-847-883)

Fan

Type Propeller Propeller

Motor Output W 53 53
Running Current A 7.21-7.12-7.03 10.79-10.70-10.61
Power Consumption W 1,560 2,345
Power Factor % 98.3-95.3-92.5 98.8-95.3-92.1
Starting Current A 32-33.5-35 55-58-60
Dimensions (H×W×D) mm 685×800×300 685×800×300
Packaged Dimensions (H×W×D) mm 732×955×390 732×955×390
Weight kg 49 61
Gross Weight kg 54 66
Operation Sound dBA 54-54-55 54-54-55
Drawing No. 3D045882 3D045883A

Conversion Formulae

kcal/h=kW×860

Btu/h=kW×3414

cfm=m³/min×35.3

Standard Cooling Piping Length

JIS C 9612

Indoor ; 27°CDB/19°CWB

Outdoor ; 35°CDB/24°CWB

5m

(Rated) FT50CV1A FT60CV1A
Capacity kW 5.3 6.6
Running Current A 7.6 11.3
Power Consumption W 1,650 2,460
COP W/W 3.21 2.68

Standard Cooling Piping Length Power Supply

AS/NZS3823.1

Indoor ; 27°CDB/19°CWB

Outdoor ; 35°CDB/24°CWB

7.5m 50Hz 230V

Specifications Si01-406

8 Specifications

220-230-240V 50Hz

Notes:



MAX. interunit piping length: 15m



MAX. interunit height difference: 15m



Amount of additional charge of refrigerant 20g/m for piping length exceeding 10m



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

Models

Indoor Units FTY25CVMA FTY35CVMA

Outdoor Units

RY25CVMA RY35CVMA

Cooling Heating Cooling Heating

Capacity

kW 2.54 3.4 3.60 4.2

Btu/h 8,700 11,600 12,300 14,300

kcal/h 2,190 2,920 3,100 3,600
Moisture Removal L/h 1.2 — 1.9 —
Running Current A 5.1 5.6 7.4 7.3
Power Consumption W 900 1,100 1,360 1,340
Power Factor % 80.2-76.7-73.5 89.3-85.4-81.8 83.5-79.9-76.6 83.4-79.8-76.5
COP W/W 2.82 3.09 2.65 3.13

Piping
Connections

Liquid mm

φ

6.4

φ

6.4

Gas mm

φ

9.5

φ

12.7

Drain mm

φ

18.0

φ

18.0

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

Indoor Units FTY25CVMA FTY35CVMA

Front Panel Color White White

Air Flow Rate

m³/min
(cfm)

H 7.8 (275) 8.1 (286) 7.7 (272) 8.1 (286)

M 6.4 (226) 6.6 (233) 6.3 (222) 6.6 (233)

L 5.0 (177) 5.1 (180) 4.9 (173) 5.1 (180)

Fan

Type Cross Flow Fan Cross Flow Fan
Motor Output W 18 18

Speed Steps 5 Steps and Auto 5 Steps 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 A 0.17-0.18-0.18 0.17-0.18-0.18 0.17-0.18-0.18 0.17-0.18-0.18
Power Consumption W 37-40-43 37-40-43 37-40-43 37-40-43
Power Factor % 98.9-96.6-99.5 98.9-96.6-99.5 98.9-96.6-99.5 98.9-96.6-99.5
Temperature Control Microcomputer Control Microcomputer Control
Dimensions (H×W×D) mm 273×784×195 273×784×195
Packaged Dimensions (H×W×D) mm 258×834×325 258×834×325
Weight kg 7.5 7.5
Gross Weight kg 11 11
Operation

Sound

H/M/L dBA 37 / 34 / 30 37 / 33 / 30 38 / 35 / 32 38 / 35 / 31

Outdoor Units RY25CVMA RY35CVMA

Casing Color Ivory White Ivory White

Compressor

Type Hermetically Sealed Rotary Type Hermetically Sealed Rotary Type

Model RC1X26BTNT RC1X26BTNT

Motor Output W 750 750
Refrigerant

Oil

Type SUNI SO 4GSD.I. SUNISO 4GSD.I.

Charge L 0.4 0.4

Refrigerant

Type R22 R22

Charge kg 0.72 0.95

Air Flow Rate

m³/min 28.0-29.0-30.0 25.0-25.5-26.5 26.5-27.5-28.0 22.5-23.5-24.0

cfm 988-1,024-1,059 883-900-935 935-971-988 794-830-847

Fan

Type Propeller Propeller

Motor Output W 25 25
Running Current A 4.93-4.92-4.92 5.43-5.42-5.42 7.23-7.22-7.22 7.13-7.12-7.12
Power Consumption W 863-860-857 1,063-1,060-1,057 1,323-1,320-1,317 1,303-1,300-1,297
Power Factor % 79.6-76.0-72.6 89.0-85.0-81.3 83.2-79.5-76.0 83.1-79.4-75.9
Starting Current A 5.6 7.3
Dimensions (H×W×D) mm 560×695×265 560×695×265
Packaged Dimensions (H×W×D) mm 599×797×310 599×797×310
Weight kg 31 32
Gross Weight kg 34 36
Operation Sound dBA 45-46-47 46-47-48 46-47-48 47-48-49
Drawing No. 3D045884 3D045885

Conversion Formulae

kcal/h=kW×860

Btu/h=kW×3414

cfm=m³/min×35.3

Standard Cooling Heating Piping Length

JIS C 9612

Indoor ; 27°CDB/19°CWB

Outdoor ; 35°CDB/24°CWB

Indoor ; 20°CDB

Outdoor ; 7°CDB/6°CWB

5m

Si01-406 Specifications

Specifications 9



The data on the conditions (AS/NZS3823.1) :

(Conditions)

(Rated)

FTY25CVMA FTY35CVMA

Cooling Heating Cooling Heating
Capacity kW 2.5 3.4 3.5 4.2
Running Current A 5.1 5.6 7.4 7.3
Power Consumption W 960 1,090 1,485 1,500
COP W/W 2.60 3.12 2.36 2.80

Standard Cooling Heating Piping Length Power Supply

AS/NZS3823.1

Indoor ; 27°CDB/19°CWB

Outdoor ; 35°CDB/24°CWB

Indoor ; 20°CDB

Outdoor ; 7°CDB/6°CWB

7.5m 50Hz 230V

Specifications Si01-406

10 Specifications

Si01-406

Printed Circuit Board Connector Wiring Diagram 11

Part 3

Part 3Part 3

Part 3

Printed Circuit Board

Printed Circuit BoardPrinted Circuit Board

Printed Circuit Board

Connector Wiring Diagram

Connector Wiring DiagramConnector Wiring Diagram

Connector Wiring Diagram

1. Printed Circuit Board Connector Wiring Diagram..................................12

1.1 FT25/35CV1A.........................................................................................12

1.2 FT50/60CV1A.........................................................................................14

1.3 FTY25/35CVMA .....................................................................................16

1.4 RY25/35CVMA .......................................................................................18

Printed Circuit Board Connector Wiring Diagram Si01-406

12 Printed Circuit Board Connector Wiring Diagram

1. Printed Circuit Board Connector Wiring Diagram

1.1 FT25/35CV1A

Connectors

Note: Other designations

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

1) V1, V2, V3 Varistor

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

∗

Refer to page 184 for detail.

3) SW7 Forced operation ON/OFF switch

4) LED1 LED for operation (green)

5) LED2 LED for timer (yellow)

6) FU1 Fuse (3.15A)

7) FU2 Fuse (0.315A)

8) RTH1 Room temperature thermistor

Si01-406 Printed Circuit Board Connector Wiring Diagram

Printed Circuit Board Connector Wiring Diagram 13

Control PCB
Signal Receiver PCB

SW7

LED1

LED2

RTH1

S27

S7

5V Check

S6

12V Check

V1

S21

FU2

V2

V3

2P058891L

Control PCB

Signal receiver PCBS1FU1

S26JCGND JB JA S32

Printed Circuit Board Connector Wiring Diagram Si01-406

14 Printed Circuit Board Connector Wiring Diagram

1.2 FT50/60CV1A

Connectors

Note: Other designations

1) S1 Connector for fan motor

2) S6 Connector for swing motor (horizontal blades)

3) S21 Connector for centralized control (HA)

4) S26, S37 Connector for buzzer PCB

5) S27, S29 Connector for control PCB

6) S28 Connector for signal receiver PCB

7) S32 Connector for heat exchanger thermistor

8) S38 Connector for display PCB

1) V1, V2, V3 Varistor

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

∗

Refer to page 184 for detail.

3) SW1 Forced operation ON/OFF switch

4) LED1 LED for operation (green)

5) LED2 LED for timer (yellow)

6) FU1 Fuse (3.15A)

7) RTH1 Room temperature thermistor

Si01-406 Printed Circuit Board Connector Wiring Diagram

Printed Circuit Board Connector Wiring Diagram 15

PCB Detail PCB(1): Control PCB

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

PCB(4): Display PCB

S1

V1

V2

V3
FU1

S6

S26

C : 2P099167

S28S32JCJBJA

S21

SW1

S29

(R2861)

(R2862)

RTH1

S38

S27

LED1 LED2 S37

(R3087)

Printed Circuit Board Connector Wiring Diagram Si01-406

16 Printed Circuit Board Connector Wiring Diagram

1.3 FTY25/35CVMA

Connectors

Note: Other designations

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

1) V1 Varistor

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

∗

Refer to page 184 for detail.

3) SW7 Forced operation ON/OFF switch

4) LED1 LED for operation (green)

5) LED2 LED for timer (yellow)

6) FU1 Fuse (3.15A)

7) RTH1 Room temperature thermistor

Si01-406 Printed Circuit Board Connector Wiring Diagram

Printed Circuit Board Connector Wiring Diagram 17

Control PCB
Signal Receiver PCB

FU1

S1

SW7

Signal receiver PCB

LED1

LED2

S27

RTH1

S7

S6

S26

S32JCJBJA

Control PCB

S21

V1

C:2P084366L

Printed Circuit Board Connector Wiring Diagram Si01-406

18 Printed Circuit Board Connector Wiring Diagram

1.4 RY25/35CVMA

Connectors

Note: Other designations

1) V1, V2, V3 Varistor

2) FU1 Fuse (3.15A)

3) FU2 Fuse (20A)

Outline of PCB

1) S10 Connector for PCB (2)

2) S11 Connector for PCB (1) (filter PCB)

3) S45 Connector for terminal board

4) S70 Connector for fan motor

5) S80 Connector for four way valve coil

6) S90 Connector for outdoor temperature thermistor / heat exchanger thermistor

7) S91 Connector for fin thermistor

C:1P101935-3K

S90S80S70

S10

FU2

PCB (1)

FU1 S91

S45

S11

PCB(2)

W

V

U

Si01-406 Printed Circuit Board Connector Wiring Diagram

Printed Circuit Board Connector Wiring Diagram 19

Detail of PCB (1)

Detail of PCB (2)

Connect to S11
on PCB (2)

C:3P100242-1B

FU2

S10

V3

V2

C:2P100238-7F

S11

S70 S80 S90

FU1

S91

S45

V1