Table Of Contents - Mitsubishi Electric PUHZ-HRP71VHA Service Manual

Table of Contents

Contents1
Technical Changes2
Technical Data Book3
Reference Manual3
Safety Precaution4
Cautions Related To New Refrigerant4
Preparation Before The Repair Service4
Precautions During The Repair Service4
Cautions For Service5
Additional Refrigerant Charge5
Service Tools5
Refrigerant Leakage Detection Function5
Precautions When Reusing Existing R22 Refrigerant Pipes6
Cautions For Refrigerant Piping Work7
Thickness Of Pipes7
Dimensions Of Flare Cutting And Flare Nut7
Tools For R410A7
Features8
High Heating Capacity8
High Speed Heating Start Up8
Wide Heating Range8
Specifications9
Dimensions9
Data10
Refilling Refrigerant Charge10
Compressor Technical Data10
Noise Criterion Curves11
Standard Operation Data12
Outlines And Dimensions13
Wiring Diagram15
Field Electrical Wiring (Power Wiring Specifications)21
Separate Indoor Unit/ Outdoor Unit Power Supplies22
Simultaneous Twin System22
Indoor – Outdoor Connecting Cable23
M-Net Wiring Method24
M-Net Transmission Wire24
M-Net Wiring25
M-Net Address Setting25
Refrigerant Address Setting25
Regulations In Address Settings25
Refrigerant System Diagram26
Refrigerant Recovering (Pump Down)27
Unit Replacement Operation27
Start And Finish Of Test Run27
Replacement Operation Procedures27
Troubleshooting28
Error Code Display By Self-Diagnosis / Actions To Be Taken For Service28
Check Point Under Test Run28
Before Test Run28
Test Run For Wired Remote Controller29
Test Run Operation29
Error Information30
Checking The Error Information31
Error History31
Deleting The Error History31
Test Run For Wireless Remote Controller33
How To Proceed "Self-Diagnosis"34
Remote Controller Check35
Self-Diagnosis36
Remote Controller Diagnosis37
Malfunction-Diagnosis Method By Wireless Remote Controller38
Malfunction-Diagnosis Method At Maintenance Service38
Errors Detected By Indoor Unit39
Errors Detected By Unit Other Than Indoor Unit39
Self-Diagnosis Action Table40
Abnormalities Detected While Unit Is Operating42
Abnormal Point And Detection Method43
No Ack Signal50
Nothing Is Displayed On The Remote Controller55
Before Repair58
Frequent Calling From Customers58
Phone Calls From Customers59
How To Check The Parts62
Solenoid Valve Coil62
Motor For Compressor62
Linear Expansion Valve62
Check Method Of Dc Fan Motor63
Fuse Check63
Thermistor Feature Chart64
Low Temperature Thermistors64
Medium Temperature Thermistor64
High Temperature Thermistor64
Operation Summary Of The Linear Expansion Valve65
Linear Expansion Valve Operation65
How To Attach And Detach The Coil Of Linear Expansion Valve66
How To Detach The Coil66
How To Attach The Coil66
Emergency Operation67
Check The Following Items And Cautions For Emergency Operation67
Emergency Operation Procedure67
Releasing Emergency Operation67
Operation Data During Emergency Operation68
Test Point Diagram69
Outdoor Controller Circuit Board69
Outdoor Noise Filter Circuit Board71
Power Supply72
Outdoor Power Circuit Board73
Brief Check Of Power Module73
Outdoor Converter Circuit Board76
Active Filter Module77
Function Of Switches78
Model Select79
Display Function Of Inspection For Outdoor Unit81
Abnormal Condition81
Normal Condition81
Outdoor Controller Board82
Outdoor Unit Operation Monitor Function83
Operation Indicator83
Digital Indicator Led1 Working Details83
When The Display Blinks83
Sw2 Setting85
Pipe Temperature / Liquid (Th3) On Error Occurring85
Error Code History (1) (Latest)85
The Number Of Connected Indoor Units86
Capacity Setting Display86
Outdoor Unit Setting Information86
Indoor Pipe Temperature / Cond. / Eva.86
Setting Details86
Display Details86
Indoor Setting Temperature87
Outdoor Pipe Temperature / Cond./ Eva.87
Outdoor Outside Temperature (Th7)87
Outdoor Heatsink Temperature (Th8)87
Dc Bus Voltage88
Capacity Save88
Error Postponement Code History Of Outdoor Unit88
Lev-A Opening Pulse On Error Occurring89
Indoor Room Temperature (Th1) On Error Occurring89
Discharge Superheat On Error Occurring Shd90
Controlling Status Of Compressor Operating Frequency91
Lev-C Opening Pulse91
Function Setting92
Unit Function Setting By The Remote Controller92
Function Selections92
Meaning Of "Function Setting"92
Operating Procedure97
Selecting Functions Using The Wireless Remote Controller98
Flow Of Function Selection Procedure98
Function Selection Of Remote Controller99
Par-31Maa99
Function Buttons99
On / Off Button99
Menu Structure Of Par-31Maa100
Main Menu List Of Par-31Maa101
Setting And Display Items101
Night Setback101
Initial Setting101
Par-21Maa103
Temperature Range Limit Setting103
Function Limit103
Change Language Setting103
Function Selection Flowchart104
Setting Language (English)104
Monitoring The Operation Data By The Remote Controller105
How To "Monitor The Operation Data"105
Relay Output State105
Operating The Service Inspection Monitor106
Canceling The Monitoring The Operation Data106
Request Code List107
Detail Contents In Request Code111
Operation State111
Indoor Unit – Control State111
Outdoor Unit – Control State111
Fan Control State112
Actuator Output State112
Error Content (U9)112
Contact Demand Capacity113
External Input State113
Outdoor Unit - Capacity Setting Display113
Outdoor Unit - Setting Information113
Outdoor Unit Switch Setting Display (Sw1 To Sw10, Except Sw3)114
Indoor Unit – Model Setting Information115
Indoor Unit – Capacity Setting Information115
Wireless Pair No. (Indoor Control Board Side) Setting115
Easy Maintenance Function116
Smooth Maintenance116
Set Each Item116
Navigating Through The Screens116
Data Measurement118
Compressor Information118
Outdoor Unit Information118
Indoor Unit Information118
Guide For Operation Condition119
Initial Settings For Refrigerant Leakage Detection Function120
Remote Controller Button Position120
How To Select The "Refrigerant Leakage Detection" Mode120
How To Start The Initial Learning120
How To Start "Judgment Of Refrigerant Leakage " Mode121
How To Reset The Initial Condition (Data)121
Disassembly Procedure122
Removing The Service Panel And Top Panel122
Removing The Fan Motor (Mf1, Mf2)122
Removing The Electrical Parts Box122
Removing The Thermistor123
Removing The 4-Way Valve Coil (21S4)124
Removing The 4-Way Valve124
Removing Linear Expansion Valve (Lev)124
Removing The High Pressure Switch (63H) And Low4-Waypressure Switch124
Removing Bypass Valve Coil (Sv)125
Removing The Reactor (Dcl) And Capacitor (Cb)125
Removing The High Pressure Sensor (63Hs)125
Removing The Compressor (Mc)126
Removing The Power Receiver126
Disassembling The Electrical Parts Box128
Removing The Reactors132