Table Of Contents - Mitsubishi Electric PUZ-A18NHA4 Service Manual

Table of Contents

Table Of Contents1
Outdoor Unit1
Service Manual1
Model Names1
Reference Manual2
Safety Precaution3
Cautions Related To New Refrigerant3
Use New Refrigerant Pipes3
Cautions For Service4
Additional Refrigerant Charge4
Service Tools4
Cautions For Refrigerant Piping Work5
Thickness Of Pipes5
Dimensions Of Flare Cutting And Flare Nut5
Tools For R410A5
Features6
Chargeless System6
Specifications7
Data9
Refilling Refrigerant Charge9
Compressor Technical Data9
Noise Criterion Curves10
Standard Operation Data11
Heat Pump11
Cooling Only12
Outlines And Dimensions13
Foundation Bolts13
Piping-Wiring Direction13
Minimum Installation Space For Outdoor Unit13
Wiring Diagram16
Wiring Specifications20
Indoor Unit Power Supplied From Outdoor Unit20
Simultaneous Twin System20
Separate Indoor Unit/Outdoor Unit Power Supplies21
Indoor - Outdoor Connecting Cable22
M-Net Wiring Method23
M-Net Wiring24
M-Net Address Setting24
Refrigerant Address Setting24
Regulations In Address Settings24
Refrigerant System Diagram25
Refrigerant Recovering27
Start And Finish Of Test Run27
Troubleshooting28
Error Code Display By Self-Diagnosis / Actions To Be Taken For Service28
Check Point Under Test Run28
Before Test Run28
Operating Procedures29
Symptoms In Test Run Mode29
Test Run30
How To Proceed "Self-Diagnosis"31
When A Problem Occurs During Operation31
Self-Diagnosis During Maintenance Or Service31
Remote Controller Diagnosis32
Remote Controller Self-Diagnosis Result32
Malfunction-Diagnosis Method By Wireless Remote Controller33
Malfunction-Diagnosis Method At Maintenance Service33
Ground33
Errors Detected By Indoor Unit34
Errors Detected By Unit Other Than Indoor Unit34
Self-Diagnosis Action Table35
Open/Short Circuit Of Discharge38
Open/Short Of Outdoor Unit Thermistors38
Temperature Of Heatsink38
Power Module38
Outdoor Fan Motor39
Compressor Overcurrent Interruption39
Current Sensor Error39
Low Pressure (63L Operated)39
Remote Controller Transmission Error40
Remote Controller Control Board40
Remote Controller Transmission Error (E3)/Signal Receiving Error (E5)40
Indoor/Outdoor Unit Communication Error (Signal Receiving Error)41
Non Defined Error Code41
Serial Communication Error41
Pipe Temperature42
Address Duplicate Definition42
Hardware Error Of Transmission Processor42
Bus Busy42
Communication Error With Communication Processor43
No Ack Signal43
Continuous43
Noise43
M-Net No Response45
Troubleshooting By Inferior Phenomena45
Cooling46
"PLEASE WAIT" Is Kept Being Displayed on the Remote Controller47
Symptoms: Nothing Is Displayed On The Remote Controller48
Frequent Calling From Customers51
How To Check The Parts55
Motor For Compressor55
Linear Expansion Valve55
Solenoid Valve Coil55
Check Method Of Dc Fan Motor56
How To Check The Components57
Thermistor Feature Chart57
Low Temperature Thermistors57
Medium Temperature Thermistor57
Operation Summary Of The Linear Expansion Valve58
Output Pulse Signal And The Valve Operation58
Linear Expansion Valve Operation58
How To Attach And Detach The Coil Of Linear Expansion Valve60
How To Detach The Coil60
How To Attach The Coil60
Emergency Operation62
Emergency Operation Procedure62
Check The Following Items And Cautions For Emergency Operation62
Releasing Emergency Operation62
Operation Data During Emergency Operation63
Test Point Diagram64
Outdoor Controller Circuit Board64
Outdoor Noise Filter Circuit Board65
Outdoor Power Circuit Board68
Brief Check Of Dip-Ipm And Dip-Pfc68
Brief Check Of Power Module69
Active Filter Module70
Connection And Internal Circuit Diagram70
Tester Check Points Of Active Filter Module70
Function Of Switches71
Function Of Connector72
Special Function73
Low-Level Sound Priority Mode73
Demand Control73
How To Wire73
Display Function Of Inspection For Outdoor Unit74
Outdoor Unit Operation Monitor Function76
Digital Indicator Led1 Working Details76
When The Display Blinks76
Easy Maintenance Function85
Maintenance Mode Operation Method85
Switching To Maintenance Mode85
Fixed Hz Operation85
Data Measurement86
Compressor Information86
Outdoor Unit Information86
Indoor Unit Information86
Guide For Operation Condition87
Check Points87
Function Setting88
Unit Function Setting By The Remote Controller88
Function Selections88
Indoor Temperature Detecting88
Selecting Functions Using The Wired Remote Controller90
Selecting Functions Using The Wireless Remote Controller92
Flow Of Function Selection Procedure92
Function Selection Of Remote Controller93
Mode Selection Setting93
Remote Controller Main/Sub Setting93
Use Of Clock Setting93
Function Selection Flowchart94
Function Selection Of Wireless Remote Controller95
Temperature Display95
Monitoring The Operation Data By The Remote Controller96
How To "Monitor The Operation Data"96
Operating The Service Inspection Monitor96
Canceling The Monitoring The Operation Data96
Request Code List97
Detail Contents In Request Code101
Relay Output State101
Data Display101
Frequency Control State101
Fan Control State102
Actuator Output State102
Error Content102
Contact Demand Capacity103
External Input State103
Outdoor Unit – Capacity Setting Display103
Outdoor Unit – Setting Information103
Outdoor Unit Switch Setting Display (Sw1 To Sw10, Except Sw3)104
Indoor Unit – Model Setting Information105
Indoor Unit – Capacity Setting Information105
Wireless Pair No. (Indoor Control Board Side) Setting105
Disassembly Procedure106
Removing The Top Panel, Service Panel, Front Panel And Back Panel106
Removing The Fan Motor106
Removing The Electrical Parts Box107
Removing The Thermistor107
Removing The 4-Way Valve Coil108
Removing The Linear Expansion Valve Coil108
Removing The 4-Way Valve109
Removing Linear Expansion Valve109
Removing The High Pressure Switch109
Removing The Reactor109
Removing The Compressor110
Removing The Accumulator110
Removing The Service Panel And Top Panel111
Removing The Fan Motor (Mf1)111
Removing The 4-Way Valve Coil (21S4)113
Removing The Linear Expansion Valve113
Removing The Bypass Valve114
Removing The High Pressure Switch (63H)114
Removing The Reactor (Acl) (A24)114
Removing The Reactor (Dcl)115
Removing The Compressor (Mc)115
Removing The Fan Motor (Mf1, Mf2)116