Toshiba RAS-24J2AVSG-E - Service Manual

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SERVICE MANUAL

Revised on March, 2020

Indoor Unit

RAS-18J2KVSG-E

RAS-B22J2KVSG-E

RAS-B24J2KVSG-E

RAS-18N4KVSG-E

RAS-B22N4KVSG-E

RAS-B24N4KVSG-E

SPLIT TYPE

Outdoor Unit

RAS-18J2AVSG-E

RAS-22J2AVSG-E

RAS-24J2AVSG-E

R32

FILE NO. SVM-20016-2

Main Page

Table of Contents2
For General Public Use3
Safety Precautions3
Specifications6
- Capacity Variation Ratio According to Temperature8
- Cooling8
- Heating8
- Operation Characteristic Curve8
- Piping Materials and Joints Used10
- Refrigerant Piping Installation10
Refrigerant R3210
- Safety During Installation/Servicing10
- Joints11
- Minimum Thicknesses of Socket Joints11
- Processing of Piping Materials11
- Thicknesses of Annealed Copper Pipes11
- Dimensions Related to Flare Processing for R2212
- Dimensions Related to Flare Processing for R32(R410A)12
- Flare and Flare Nut Dimensions for R32(R410A)12
- Flare Processing12
- Flare and Flare Nut Dimensions for R2213
- Flare Connecting Procedures and Precautions13
- General Tools14
- Required Tools14
- Tools14
- Configuration of Refrigerant Charging15
- Recharging of Refrigerant15
- Brazing of Pipes16
- Materials for Brazing16
- Phosphor Bronze Brazing Filler16
- Silver Brazing Filler16
- Brazing17
- Brazing Method to Prevent Oxidation17
- Characteristics Required for Flux17
- Types of Flux17
Construction Views18
Wiring Diagram21
Specifications of Electrical Parts24
Refrigerant Cycle Diagram25
Operation Data27
Control Block Diagram28
Outdoor Unit (Inverter Assembly)29
Operation Description30
- Outline of Air Conditioner Control30
- Role of Indoor Unit Controller30
- Role of Outdoor Unit Controller30
Basic Operation32
Operation Control32
Operation Description32
Cooling/Heating Operation33
AUTO Operation34
DRY Operation34
Selection of Operation Mode34
Indoor Fan Motor Control35
Indoor Fan Air Flow Rate36
Outdoor Fan Motor Control38
Capacity Control39
Current Release Control39
Release Protective Control by Temperature of Indoor Heat Exchanger40
Defrost Control (Only in Heating Operation)41
Start of Heating Operation41
Louver Control42
Louver Position42
- Louver Position in Heating Operation43
- Air Direction44
Wind Direction Adjustment44
HADA CARE Position45
Swing45
Cooling Operation46
ECO Operation46
Heating Operation46
Discharge Temperature Control47
High Pressure Control47
Temporary Operation47
Pulse Modulating Valve (P .M.V.) Control48
Self-Cleaning Function49
- Self-Cleaning Operation49
- Self-Cleaning Operation Times49
- Self-Cleaning Diagram50
- Self-Cleaning Function Release50
COMFORT SLEEP Mode51
Remote-A or B Selection51
Setting the Remote Controller51
QUIET Mode52
Short Timer52
Power-Selection and Silent Operation53
Silent Operation53
Silent Operation Description53
C Heating / Frost Protective Operation54
Fireplace Operation54
Hi-POWER Mode55
Operation Mode Selectable55
Display Lamp Brightness Control56
- To Decrease the Display Lamp Brightness or Turn It off56
- How to Set the au to Restart Function57
- When the Unit Is in Operation57
- When the Unit Is Standby57
How to Cancel the Auto Restart Function58
Power Failure During Timer Operation58
Operation of Remote Control59
Parts Name of Remote Contr Oller59
- Weekly Timer Operation59
- How to Set WEEKLY TIMER60
- Deactivating WEEKLY TIMER Operation62
- Edit Weekly Timer Program62
- All Programs63
- The Individual Program63
- To Delete Programs63
- Automatic Operation64
- Cooling / Heating / Fan Only Operation64
- Fireplace and 8°C Heating Operation64
- Air Flow65
- Comfort Sleep Operation65
- Hada Care Flow65
- Hi-Power Operation65
- Power-Selection66
- Power-Selection and Silent Operation (Outdoor Unit)66
- Air Flow Direction67
- Preset Operation67
- Timer Operation67
- Name and Functions of Indications on Remote Contr Oller68
- Installation Diagram of Indoor and Outdoor Units69
Installation Procedure69
- Loading Batteries69
- Fixing Bolt Arrangement of Outdoor Unit70
- Installation70
- Accessory and Installation Parts71
- Air Filters71
- Changes in the Product and Components72
- Installation/Servicing Tools72
- New Tools for R32(R410A)72
- Cutting a Hole and Mounting Installation73
- Installation Place73
- Remote Control73
- Changing Drain Hose75
- Die-Cutting Back Body Slit75
- Piping and Drain Hose Forming75
- Piping and Drain Hose Installation75
- How to Fix the Drain Cap76
- Left-Hand Connection with Piping76
- Drainage77
- Indoor Unit Fixing77
- Precautions for Adding Refrigerant78
- Draining the Water79
- Imperial79
- Refrigerant Piping Connection79
- Ridgid79
- Air Purge80
- Evacuating80
- Tightening Connection80
- Using a Vacuum Pump80
- Packed Valve Handling Precautions81
- Electrical Works82
- How to Install the Air Inlet Grille on the Indoor Unit82
- Wiring Connection82
- Power Supply and Connecting Cable Connection83
- Power Supply Input at Indoor Unit Terminal Block (Optional)83
- Power Supply Input at Outdoor Unit Terminal Block (Recommend)84
- Power Supply Input Wiring Diagram for 1:1 Outdoor Unit84
- In Case of Indoor Unit Connect with Inverter Multi System (IMS)85
- Power Input at Outdoor Terminal Block85
- Power Supply Input at Outdoor Unit Terminal Block85
- Auto Restart Setting86
- Gas Leak Test86
- Others86
- Test Operation86
How to Diagnose the Trouble87
- Precautions When Handling the New Inverter87
- The Control Circuitry Has an Uninsulated Construction87
- Discharging Method89
- Precautions When Inspecting the Control Section of the Outdoor Unit89
- Confirmation of Power Supply90
- Confirmation of Power Voltage90
- First Confirmation90
- Operation Which Is Not a Trouble90
- Judgment by Flashing LED of Indoor Unit91
- Primary Judgment91
- How to Use Remote Controller in Service Mode92
- Self-Diagnosis by Remote Controller92
- Caution at Servicing93
- Judgment of Trouble by Every Symptom99
- Power Is Not Turned on99
- Power Is Not Turned on Though Indoor P.C. Board Is Replaced100
- Only the Indoor Motor Fan Does Not Operate101
- Troubleshooting for Remote Controller104
- Outdoor Unit Does Not Operate105
- Outdoor Unit Stops in a Little While after Operation Started105
- Wiring Failure105
- How to Check Simple the Main Parts106
- How to Diagnose Trouble in Outdoor Unit107
- Summarized Inner Diagnosis of Inverter Assembly107
- How to Check Simply the Main Parts108
- How to Check the P.C. Board (Indoor Unit)108
- P .C . Board Layout110
- Sensor Characteristic Table110
- Checking Method for each Part112
- How to Simply Judge Whether Outdoor Fan Motor Is Good or Bad113
How to Replace the Main Parts114
- Front Cabinet130
- Control Board Assembly132
- Fan Motor133
- Side Cabinet133
- Compressor134
- Reactor134
- Fan Guard135
- TD Sensor (Discharge Pipe Temperature Sensor)136
- TE Sensor (Outdoor Heat Exchanging Temperature Sensor)136
- TO Sensor (Outside Air Temperature Sensor)136
- TS Sensor (Suction Pipe Temperature Sensor)136
Exploded Views and Parts List137
Indoor Unit (Part-E)138

Toshiba RAS-24J2AVSG-E - Service Manual

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