Table Of Contents - Mitsubishi Electric PUHY-P200 Service Handbook

Table of Contents

Safety Precautions2
Precautions For Handling Units For Use With The Product4
Before Installing The Unit5
Before The Test Run7
Table Of Contents8
Read Before Servicing10
I Read Before Servicing12
Necessary Tools And Materials13
Piping Materials14
Copper Pipe Materials14
Types Of Copper Pipes14
Radial Thickness14
Flare Processing15
Flare Nut15
Storage Of Piping16
Pipe Processing16
Sealing The Pipe Ends16
Brazing17
Air Tightness Test18
Vacuum Drying (Evacuation)19
Vacuum Pump With A Reverse-Flow Check Valve19
Required Precision Of Vacuum Gauge19
Procedures For Stopping Vacuum Pump19
Refrigerant Charging20
Remedies To Be Taken In Case Of A Refrigerant Leak20
Characteristics Of The Conventional And The New Refrigerants21
Refrigerant Composition21
Pressure Characteristics21
Notes On Refrigerating Machine Oil22
Effects Of Contaminants22
Restrictions24
System Configuration26
Table Of Compatible Indoor Units26
High Cop Combinations27
Types And Maximum Allowable Length Of Cables28
Wiring Work28
Control Wiring28
M-Net Transmission Line28
Switch Settings And Address Settings29
Remote Controller Wiring29
M-Net Address Settings30
Power Supply Switch Connector Connection On The Outdoor Unit31
Settings For The Centralized Control Switch For The Outdoor Unit31
Selecting The Position Of Temperature Detection For The Indoor Unit31
Various Start-Stop Controls (Indoor Unit Settings)31
Cooling-Only Setting For The Indoor Unit32
Various Controls Using Input-Output Signal Connector On Outdoor Unit32
Example Of Wiring Connection33
Demand Control34
Contact Input And Control Content34
8-Step Demand Control35
12-Step Demand Control35
Sample System Connection36
An Example Of A System To Which An Ma Remote Controller Is Connected37
Wiring Method38
Indoor/Outdoor Transmission Line38
Ma Remote Controller Wiring38
Address Setting Method38
Sample Control Wiring39
Lossnay Connection40
Group Operation Of Units In A System With Multiple Outdoor Units41
An Example Of A System To Which An Me Remote Controller Is Connected47
An Example Of A System To Which Both Ma Remote Controller And Me Remote Controller Are Connected49
Restrictions On Pipe Length51
Refrigerant Pipe Size53
Outdoor Unit Components56
Outdoor Unit Components And Refrigerant Circuit58
Front View Of An Outdoor Unit58
Refrigerant Circuit Parts60
Control Box Of The Outdoor Unit Parts62
Outdoor Unit Circuit Board63
Fan Board66
Remote Controller68
Functions And Specifications Of Ma And Me Remote Controllers70
Comparison Of Ma And Me Remote Controllers70
Remote Controller Selection Criteria70
Group Settings And Interlock Settings Via The Me Remote Controller71
To Return To The Normal Display72
Remote Controller Function Selection Via The Me Remote Controller73
To Delete Group Settings73
To Delete Interlock Settings73
Skip-Auto-Mode Setting (Making Automatic Operation Mode Unselectable)74
Operation Mode Display Selection Mode74
Restricted Preset Temperature Range Mode74
Temperature Range Setting For Heating/Automatic Mode74
Interlock Settings Via The Ma Remote Controller75
Using The Built-In Temperature Sensor On The Remote Controller76
Selecting The Position Of Temperature Detection76
Electrical Wiring Diagram78
Electrical Wiring Diagram Of The Outdoor Unit80
Electrical Wiring Diagram Of Transmission Booster82
Refrigerant Circuit84
Refrigerant Circuit Diagram86
Principal Parts And Functions88
Control92
Functions And Factory Settings Of The Dipswitches94
Outdoor Unit Switches94
Function Of The Switch (Indoor Unit)98
Function Of The Switch - Remote Controller99
Controlling The Outdoor Unit101
Startup Sequence Rotation101
Initial Control101
Control At Start-Up101
Bypass Control102
Compressor Frequency Control103
Pressure Limit103
Discharge Temperature Limit103
Periodic Frequency Control103
Defrost Operation Control104
Pipe Temperature104
Stopping The Defrost Operation105
Problems During Defrost Operation105
Change In The Number Of Operating Indoor Units During Defrosting105
Refrigerant Recovery Control106
Capacity Control Of Outdoor Fan106
Subcool Coil Control (Linear Expansion Valve Lev1)107
Refrigerant Flow Control107
Control At Initial Start-Up107
Emergency Operation Mode110
Starting The Emergency Operation110
Ending The Emergency Operation111
Communication Circuit Failure Or When Some Of Outdoor Units Turned Off111
Operation Mode112
Operation Flow Chart114
Mode Determination Flowchart114
Operations In Each Mode116
Test Run Mode120
Items To Be Checked Before A Test Run122
Test Run Method123
Operating Characteristic And Refrigerant Amount124
Adjusting The Refrigerant Amount124
Amount Of Refrigerant To Be Added125
Refrigerant Amount Adjust Mode127
The Following Symptoms Are Normal129
Standard Operation Data (Reference Data)130
2-Unit Combination136
3-Unit Combination162
Single Unit (High-Cop)176
Troubleshooting210
Error Code Lists212
Responding To Error Display On The Remote Controller215
Troubleshooting According To Remote Malfunction/External Input Error267
Both For Ma Remote Controller And Me Remote Controller275
Investigation Of Transmission Wave Shape/Noise280
Troubleshooting Principal Parts283
High-Pressure Sensor Troubleshooting283
Low-Pressure Sensor Troubleshooting284
Solenoid Valve Troubleshooting285
Outdoor Unit Fan Troubleshooting286
Lev Troubleshooting288
Inverter Troubleshooting294
Inverter Output Related Troubles296
Trouble Treatment When The Main Power Breaker Is Tripped298
Trouble Treatment When The Main Power Earth Leakage Breaker Is Tripped298
Checking Procedure For Individual Components Of Main Inverter Circuit299
Troubleshooting For Igbt Module299
Control Circuit Troubleshooting301
Control Power Source Function Block301
Indoor Unit301
Troubleshooting Transmission Power Circuit Of Outdoor Unit302
Refrigerant Leak Troubleshooting303
Leak Spot: In The Case Of Extension Pipe For Indoor Unit304
Leak Spot: In The Case Of Outdoor Unit (Heating Season)304
Compressor Replacement Instructions305
Troubleshooting Using The Outdoor Unit Led Error Display307
Led Monitor Display On The Outdoor Unit Board308
How To Read The Led On The Service Monitor310
Led Display At Initial Setting310
Time Data Storage Function311
Led Monitor Display - Current Data312
Led Monitor Display - Data Before Error322
Led Monitor Display - Data On Indoor Unit System329
Led Monitor Display - Setting Data336
Data On Indoor Unit System337
Other Types Of Data352