Panasonic R410A - 5. TROUBLE DIAGNOSIS

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5-1

5. TROUBLE DIAGNOSIS

5-1. Contents of Remote Controller Switch Alarm Display .......................................... 5-2

5-2. Outdoor Unit Control Panel LED Display ................................................................ 5-4

5-3. PAC-i System Alarm Codes ...................................................................................... 5-5

5-4. Inspection of Parts (Outdoor Unit) .......................................................................... 5-58

5-5. Symptom: Thermostat in OFF continues or cycles OFF & ON too frequently ..... 5-59

Sec5.indd1Sec5.indd1 2012/03/0920:42:502012/03/0920:42:50

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Technical Data1
Service Manual1
Please Read before Starting2
When Wiring2
When Installing2
When Connecting Refrigerant Tubing2
When Servicing3
Others3
- Check of Density Limit4
- Table of Contents5
- Specifications5
- Single-Type6
Unit Specifications6
- 4-Way Cassette Type S-60PU1R5/U-60PE1R56
- 4-Way Cassette Type S-71PU1R5/U-71PE1R57
- 4-Way Cassette Type S-100PU1R5/U-100PE1R58
- 4-Way Cassette Type S-125PU1R5/U-125PE1R59
- 4-Way Cassette Type S-140PU1R5/U-140PE1R510
- Ducted Type S-60PE1R5/U-60PE1R511
- Ducted Type S-71PE1R5/U-71PE1R512
- Ducted Type S-100PE1R5/U-100PE1R513
- Ducted Type S-125PE1R5/U-125PE1R514
- Ducted Type S-140PE1R5/U-140PE1R515
- Single Split Type S-100PU1R5/U-100PE1R816
- Single Split Type S-125PU1R5/U-125PE1R817
- Single Split Type S-140PU1R5/U-140PE1R818
- Indoor Units: S-60PU1R5/71PU1R519
Dimensional Data19
- Indoor Units: S-100PU1R5/125PU1R5/140PU1R520
- Indoor Units: Ducted Type S-60PE1R5/S-71PE1R5/S-100PE1R5/S-125PE1R5/S-140PE1R521
- Outdoor Units: U-60PE1R5/U-71PE1R522
- Outdoor Units: U-100PE1R5/U-125PE1R5/U-140PE1R5; U-100PE1R8/U-125PE1R8/U-140PE1R823
Refrigerant Flow Diagram24
- (A) Indoor Units24
- (B) Outdoor Units24
Operating Range25
- Heating Capacity Ratio (Maximum Capacity)26
- U-60PE1R5 (for 50 Hz)26
- Cooling Capacity Ratio (Maximum Capacity)26
Capacity Correction Graph According to Temperature Condition26
- U-71PE1R5 (for 50 Hz)27
- U-100PE1R5 (for 50 Hz)28
- U-125PE1R5 (for 50 Hz)29
- U-140PE1R5 (for 50 Hz)30
- Indoor Units31
- 4 Way Cassette Type31
Noise Criterion Curves31
Outdoor Units33
Indoor Fan Performance36
4-Way Cassette Type37
Airflow Distance Chart37
- Intaking Fresh Air of 4 Way Cassette Type39
- Precautions Regarding External Air Intake39
- Flexible Cylindrical Duct39
- With the External Air Intake Flange Attached40
- External Air Intake Volume and Resistance and Operation Noise Characteristics Within the Unit40
- When an External Air Intake Flange (100) Is in Use40
- Electrical Wiring41
- General Precautions on Wiring41
- Recommended Wire Length and Wire Diameter for Power Supply System41
- Wiring System Diagrams42
- How to Connect Wiring to the Terminal43
- For Stranded Wiring43
- Examples of Shield Wires43
- Wiring Samples43
- Installation Instructions44
- Tubing Length44
- Single Type44
- Check of Limit Density45
- Minimum Indoor Volume & Fl Oor Area Relative to the Amount of Refrigerant Are Roughly as Given in the Following Table45
- Selecting the Location for Installation Service46
- Selecting the Installation Site46
- Select the Outdoor Unit Installation Location46
- Accessories Supplied with Outdoor Unit46
- How to Install the Outdoor Unit48
- Transporting48
- Installation48
- Refrigerant Installation49
- Precautions During Refrigerant Installation49
- The Local Pipes Can Protrude from any Four Directions49
- Precautions When Operating the 3-Way Valve for Piping Installation50
- Precautions for Handling the Valve Cap50
- Precautions for Handling the Service Ports50
- Precautions for Insulation Installation50
- Precautions for Flare Nut Installation51
- Vacuum Purging51
- Regarding Refrigerant Filling51
- Charging with Refrigerant51
Electrical Wiring52
- Check before Test Run54
- Precautions Regarding Test Run54
- Test Run Procedure54
- Checks after Installation Have Completed55
- Regarding Delivery to the Customer55
- 4-Way Cassette Type (U1 Type)56
- Electing the Installation Site (U1 Type)56
- How to Install the Indoor Unit56
- Indoor Unit56
- Placing the Unit Inside the Ceiling57
- Before Performing the Installation Drain Piping58
- Ceiling Surface58
- Installing the Drain Pipe58
- Checking the Drainage60
- How to Install the Ceiling Panel61
- Accessories61
- Preparation for Ceiling Panel Installation61
- Installing the Ceiling Panel62
- Table for DC Fan Motor Tap Setting64
- Stop the System before Performing These Steps64
- Selecting the Installation Site (E1 Type)65
- Selecting the Location for the Indoor Unit66
- Installation of Indoor Unit66
- Position of Suspension Bolt66
- Suspending the Indoor Unit67
- Connecting Duct to Indoor Unit68
- Connection for Demand and Forced Stop69
- Connection Procedure69
- When Connection to the Forced Stop Input70
- When Connecting the Demand Controller Input70
- When Connecting to the Next System Unit71
- Wiring Procedure72
- Cz-Fdu273
- Filter Chamber for Indoor Unit73
- Optional Parts73
Installation Instructions73
- Air Intake Kit for Chamber74
- Cz-Atu274
- Air Intake Kit for Unit75
- Cz-Bcu275
- Air Cut Insulation76
- Applicable Model & Use76
- Cz-Cfu276
- List of Parts76
- Test Run79
- Electrical Data82
- 4-Way Cassette Type S-60PU1R5/S-71PU1R5/S-100PU1R5/S-125PU1R5/S-140PU1R583
- Indoor Units (Electric Wiring Diagram)83
  - Ducted Type S-60PE1R5/S-71PE1R5/S-100PE1R5/S-125PE1R584
  - Ducted Type S-140PE1R585
  - Electric Wiring Diagram U-60PE1R5/U-71PE1R586
- Outdoor Units (Electric Wiring Diagram)86
  - Electric Wiring Diagram U-100PE1R5/U-125PE1R5/U-140PE1R587
  - Electric Wiring Diagram U-100PE1R8/U-125PE1R8/U-140PE1R888
  - Control Functions90
  - Cooling Temperature Correction91
  - Heating Temperature Correction91
- Room Temperature Control91
- Heating Standby93
- Automatic Fan Speed Control94
- Drain Pump Control95
- Automatic Heating/Cooling Control96
- When Setting Temperature in Remote Controller Is 20 C in the Cooling Mode96
- Automatic Flap Control97
- Filter Sign97
- Fan Control During Dry Mode98
- T10 Terminal98
- Ventilation Fan Output98
- Parameter99
- Cr-Pcb A746894 (U-60Pe1R5, U-71Pe1R5)100
- Outdoor Units Control PCB (CR-PCB, HIC-PCB)100
  - Single-Phase Unit100
  - Cr-Pcb A746844 (U-100Pe1R5)101
  - Cr-Pcb A746845 (U-125Pe1R5, U-140Pe1R5)102
  - Hic-Pcb A746895 (U-60Pe1R5, U-71Pe1R5)103
  - Hic-Pcb A746846 (U-100Pe1R5)104
  - Hic-Pcb A746847 (U-125Pe1R5, U-140Pe1R5)105
  - 3-Phase Unit106
  - Cr-Pcb A746967 (U-100Pe1R8, U-125Pe1R8, U-140Pe1R8)106
  - Hic-Pcb A746969 (U-100Pe1R8, U-125Pe1R8, U-140Pe1R8)107
- Functions of Outdoor Unit PCB108
- Setting the System Address (S002: Rotary Switch (Yellow), S003: 2P DIP (Black))110
- Self-Diagnostics Function Table111
  - Trouble Diagnosis114
  - Contents of Alarm Display on Remote Controller (Only Outdoor Unit)115
- Contents of Remote Controller Switch Alarm Display115
- Contents of LED Display on Outdoor Unit Control PCB117
- Outdoor Unit Control Panel LED Display117
- Alarms for Outdoor Units118
- PAC-I System Alarm Codes118
  - Symptoms and Parts to Inspect119
  - Check Prior to Auto Address Setting120
  - E01 Remote Controller Reception Error121
  - Error Detection Method121
  - Error Diagnosis121
  - A746802122
  - A746803122
  - E02 Remote Controller Transmission Error123
  - E03 Error in Indoor Unit Receiving Signal from Remote Controller (Central)124
  - E04 Error in Indoor Unit Receiving Signal from the Outdoor Unit126
  - Indoor Unit Control PCB127
  - Outdoor Unit Control127
  - E05 Error in Indoor Unit Transmitting Signal to the Outdoor Unit128
- Setting no128
  - E06 Outdoor Unit Failed to Receive Serial Communication Signals from Indoor Unit129
  - E07 Outdoor Unit Sending Failure to Indoor Unit130
  - E08 Duplicate Indoor Unit Address Settings Error131
  - E09 more than One Remote Controller Set to Main Error132
  - Wireless Remote Controller132
  - E12 Automatic Address Setting Start Is Prohibited While Auto-Address Setting in Progress133
  - E13 Error in Indoor Unit Transmitting Signal to Remote Controller133
  - E14 Main Unit Duplication in Simultaneous-Operation Multi Control (Detected Outdoor Unit)134
  - E15 Automatic Address Alarm (Capacity too Low)135
  - E16 Automatic Address Alarm (Capacity too High)136
  - E18 Faulty Communication in Group Control Wiring137
  - E20 no Indoor Units Connected138
  - F04 Compressor Discharge Temperature Sensor (TD) Trouble139
  - F06 Inlet Temperature Sensor (C1) in Heat Exchanger Trouble140
  - F07 Intermediate Temperature (C2) in Heat Exchanger Trouble141
  - F08 Outdoor Air Temperature Sensor (TO) Trouble142
  - F12 Compressor Inlet Suction Temperature Sensor (TS) Trouble143
  - F31 Outdoor Unit Nonvolatile Memory (EEPROM) Trouble144
  - H01 Primary (Input) Overcurrent Detected145
  - H02 PAM Trouble (Single-Phase Only)146
  - H03 Primary Current CT Sensor (Current Sensor) Failure147
  - H05 Sensor Failure, Compressor Discharge Temperature Sensor (TD) Disconnected148
  - H31 HIC Trouble149
  - HIC Board IPM Pass/Fail Tests149
  - Outdoor Unit Control HIC PCB151
  - Outdoor Unit Control PCB151
  - L04 Outdoor Unit Address Duplication152
  - L10 Outdoor Unit Capacity Not Set153
  - L13 Indoor Unit Type Setting Error154
  - L18 4-Way Valve Operation Failure155
  - P03 Compressor Discharge Temperature Trouble156
  - P04 High Pressure Trouble157
  - P05 AC Power Supply Trouble159
  - P13 Alarm Valve Open160
  - P14 O2 Sensor Detect161
  - Check of Content163
  - Meaning of Alarm163
  - P16 Compressor Overcurrent Trouble163
  - P22 Outdoor Unit Fan Motor Trouble167
  - P29 Lack of INV Compressor Wiring, INV Compressor Actuation Failure (Including Locked) Due to DCCT Failure168
  - P31 Group Control Error169
  - Electronic Control Valve (MOV1)171
- Inspection of Parts (Outdoor Unit)171
- How to Detect Abnormality172
- Symptom: Thermostat in off Continues or Cycles off & on too Frequently172
- Outdoor Unit Maintenance Remote Control174
- Functions175
- Overview175
  - System Diagram175
  - What Is the Outdoor Unit Maintenance Remote Controller?175
  - All Units Start/Stop176
  - All Units Test Run176
- Normal Display Operations and Functions176
  - Switching between Cooling/Heating176
  - Display (Functions)177
  - 2: 7-Segment, 4-Digit Display for Remote Controller Timer Display178
  - 3: the Total Compressor Operating Time Is Displayed178
- Monitoring Operations: Display of Indoor Unit and Outdoor Unit Sensor Temperatures179
- Monitoring the Outdoor Unit Alarm History: Display of Outdoor Unit Alarm History180
- Settings Modes: Setting the Outdoor Unit EEPROM180
  - List of Item Codes181
  - Remote Controller Functions Section184
- Controller Display185
- If Group Control Is in Effect, Press the185
- Press and Hold the and Buttons185
- Press the Button185
- Press the Button to Return to Normal Remote185
- Press the Timer Time / Buttons to Select the Desired Setting Data185
- Simple Settings Function185
- Simultaneously for 4 Seconds or Longer185
- List of Simple Setting Items186
- Detailed Settings Function187
- List of Detailed Setting Items188
- Filter Sign on Times for each Model192
- Simple Setting Items192
- Detaild Setting Items194
  - DC Fan Tap Change Procedure197
  - List of Servicing Functions198
- Remote Controller Servicing Functions198
- Test Run Function198
  - Sensor Temperature Display Function (Displayed Regardless of Whether Unit Is Operating or Stopped)199
  - How to Install the Wireless Remote Controller Receiver200
- Warning about Installation of Receivers201
- Warning about Installing Remote Controls201
- Names and Functions202
- Optional Controller (Remote Controller)202
  - Remote Controller202
  - Wireless Remote Controller CZ-RWSU2/CZ-RWST2 /CZ-RWSL2/CZ-RWSC2/CZ-RWSY2/CZ-RWSK2202
  - Receiver203
  - How to Remove Batteries204
- Installing Batteries204
- Setting the Current Time204
  - Auto Operation205
  - Dry Operation205
  - Checking the Timer Setting206
- Timer Operation206
  - Using the same Timer Setting Every Day206
  - Using the Timer206
- Adjusting the Wind Direction207
- CZ-RWSU2/CZ-RWST2/CZ-RWSL2/CZ-Rwsy2/Indoor Unit (K1 Type)207
- Operating Multiple In/Outdoor Units Simultaneously (Group Control)207
- Checking Addresses208
- For Best Results208
- Using the Remote Control208
  - Matching up Addresses209
  - Setting Addresses (CZ-RWSY2/K1 Type)209
  - Cz-Rwsc2/Cz-Rwsl2210
  - CZ-RWSU2/CZ-RWST2/CZ-Rwsy2/Indoor Unit (K1 Type)210
- Emergency Operation210
- How to Operate211
- Miscellaneous Settings211
- Before Requesting Service212
- Common to All Models213
- How to Install the Wireless Remote Controller Receiver213
  - Things to Remember When Wired and Wireless Remotes Are Installed at the same Time213
  - Warnings about Installation of Receivers213
  - Warnings about Installing Remote Controls213
- Cz-Rwsc2214
- Cz-Rwsl2214
- Cz-Rwst2214
- Cz-Rwsu2214
  - Cz-Rwsu2215
  - Installing the Receiver215
  - Implementing a Test Run216
  - Setting Address Switches216
  - Test Operation216
  - Wiring the Receiver216
  - Ceiling Suspended Model217
  - Cz-Rwst2217
  - Unidirectional Cassette Model for High Ceilings/Unidirectional Ceiling Cassette Model218
  - Cz-Rwsl2220
  - Installing the Display/Operation Panel220
  - Resin Panel220
  - Installing the Display221
  - Installing the Operation Panel221
  - Metal Panel221
  - Wiring Diagram221
  - Cz-Rwsc2223
  - If to be Used as an Embedded Model225
  - If It Is to be Used as an Exposed Model226
- Cz-Rwsy2227
- Installing the Receiver Unit227
- The Self-Diagnosis Function Display and What Is Detected229
- When Using CZ-RWSC2229
- Room Temperature Sensor Settings229
- Setting up Remote Control Functions230
- Making Settings (Do with Unit Stopped)230
- Operation Mode Setting Screen230

Panasonic R410A - 5. TROUBLE DIAGNOSIS

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