Table Of Contents - Toshiba RAS-M10UKV-E3 Service Manual

Table of Contents

Service Manual1
Table Of Contents2
Specifications3
Specifications Of Performance When Each Indoor Unit Is Combined With Other Unit5
Operation Characteristic Curve20
Capacity Variation Ratio According To Outdoor Temperature20
Capacity Variation Ratio According To Pipe Length20
Electrical Data21
Refrigerant R410A26
Safety During Installation/Servicing26
Refrigerant Piping Installation26
Piping Materials And Joints Used26
Thicknesses Of Annealed Copper Pipes27
Minimum Thicknesses Of Socket Joints27
Processing Of Piping Materials27
Flare Processing Procedures And Precautions27
Dimensions Related To Flare Processing For R410A28
Dimensions Related To Flare Processing For R2228
Flare And Flare Nut Dimensions For R410A28
Flare Processing Dimensions28
Flare And Flare Nut Dimensions For R2229
Relations Between Flare Nut And Flare Seal Surface29
Tightening Torque Of Flare For R410A29
Required Tools30
Tools Exclusive For R410A30
General Tools30
Recharging Of Refrigerant31
Configuration Of Refrigerant Charging31
Brazing Of Pipes32
Materials For Brazing32
Silver Brazing Filler32
Phosphor Bronze Brazing Filler32
Brazing33
Characteristics Required For Flux33
Types Of Flux33
Brazing Method To Prevent Oxidation33
Construction Views34
Indoor Unit34
Outdoor Unit35
Mounting Dimension Of Anchor Bolt35
Wiring Diagram36
Simple Check Points For Diagnosing Faults36
Color Identification37
Specifications Of Electrical Parts38
Refrigerant Cycle Diagram40
Operation Data43
Control Block Diagram48
Outdoor Unit (Inverter Assembly)49
Operation Description50
Outline Of Air Conditioner Control50
Current Release Control51
Capacity Control51
Power Factor Improvement Control51
Compressor Revolution Range51
Prevent-Freezing Control52
P. M. V. (Pulse Modulating Valve)52
Louver Control52
Indoor Fan Control (Dc Fan Motor)52
Outdoor Fan Control (Dc Fan Motor)53
Description Of Operation Circuit53
Fan Only Operation53
Cooling Operation54
Setting Of Air Flow54
Cooling Capacity Control54
Limit For Maximum Compressor Motor Speed By Indoor Fan Speed55
Discharge Temperature Control55
Compressor Motor Speed Control55
Econo. Operation Control56
Dry Operation56
Dehumidifying-Preferential Cooling Capacity Control57
Heating Operation57
Cold Draft Preventing Control57
High-Temp. Release Control58
Auto Operation59
Temporary Operation59
Temporary Auto Operation59
Temporary Cooling Operation59
Auto Restart Function60
How To Set The Auto Restart60
How To Cancel The Auto Restart61
In Case Of Power Failure During The Timer Operation61
Remote Control And Its Functions62
Names And Functions Of Indications On Remote Control63
Installation Procedure64
Safety Cautions64
Installation/Servicing Tools65
Installation Place67
Remote Controller67
Cutting A Hole67
Mounting The Installation Plate67
Wiring Connection68
How To Connect The Connecting Cable68
Piping And Drain Hose Forming68
Die-Cutting Front Panel Slit68
In Case Of Right Or Left Piping69
In Case Of Bottom Right Or Bottom Left Piping69
Left-Hand Connection With Piping69
Indoor Unit Fixing69
Setting Of Remote Controller Selector Switch70
How To Remove The Front Cabinet70
Position Of Remote Control Selector Switch70
How To Mount The Front Panel70
Check And Test Operation71
Accessory And Installation Parts72
Refrigerant Piping72
Optional Installation Parts72
Refrigerant Piping Connection73
How To Remove The Side Panel74
Tightening Connection74
Tightening Torque Of Flare Pipe Connections74
Evacuating75
Electrical Work75
How To Wire75
3 Units (A + B + C) Multi76
4 Units (A + B + C + D) Multi76
Stripping Length Power Cord And Connecting Cable76
Miswiring (Mispiping) Check77
Miswiring (Mispiping) Check By Led Indication77
Useful Functions78
Self-Diagnosis By Led Indication78
How To Diagnose The Trouble79
First Confirmation80
Confirmation Of Power Supply80
Confirmation Of Power Voltage80
Operation Which Is Not A Trouble80
Primary Judgment80
Judgment By Flashing Led Of Indoor Unit81
Self-Diagnosis By Remote Control82
How To Use Remote Control In Service Mode82
Caution At Servicing83
Judgement Of Trouble By Every Symptom85
Power Is Not Turned On (Does Not Operate Entirely)85
Power Is Not Turned On Though Indoor P.c. Board Is Replaced86
Only Indoor Fan Motor Does Not Operate87
Indoor Fan Motor Starts Rotating By Turning On Power Supply Alone88
How To Examine Whether Remote Controller Is Good Or Bad89
Wiring Failure (Interconnecting And Serial Signal Wire)90
Outdoor Unit Does Not Operate90
Outdoor Unit Stops In A Little While After Operation Started90
Trouble Diagnosis By Outdoor Led91
How To Diagnose Trouble In Outdoor Unit92
Summarized Inner Diagnosis Of Inverter Assembly92
How To Check Simply The Main Parts93
How To Check The P.c. Board93
P.c. Board Layout95
Sensor Characteristic Table96
How To Simply Judge Whether Outdoor Fan Motor Is Good Or Bad99
How To Replace The Main Parts100
Microcomputer102
Exploded Views And Parts List110