Mitsubishi Electric PUHY-RP850YSJM-A Manuals

Manuals and User Guides for Mitsubishi Electric PUHY-RP850YSJM-A. We have 1 Mitsubishi Electric PUHY-RP850YSJM-A manual available for free PDF download: Service Handbook

Mitsubishi Electric PUHY-RP850YSJM-A Service Handbook

Mitsubishi Electric PUHY-RP850YSJM-A Service Handbook (307 pages)

Brand: Mitsubishi Electric | Category: Air Conditioner | Size: 11.03 MB

Table of Contents

Safety Precautions
2
Before Installing the Unit
5
Before the Test Run
7
Table of Contents
8
Read before Servicing
10
1 I Read before Servicing

12
- Read before Servicing
  12
- Necessary Tools and Materials
  13
- Pipe Processing
  14
- Sealing the Pipe Ends
  14
- Storage of Piping
  14
- Brazing
  15
- Air Tightness Test
  16
- Vacuum Drying (Evacuation)
  17
- Refrigerant Charging
  18
- Remedies to be Taken in Case of a Refrigerant Leak
  18
- Characteristics of the Conventional and the New Refrigerants
  19
- Notes on Refrigerating Machine Oil
  20
- Restrictions
  22
2 II Restrictions

24
3 III Outdoor Unit Components

66
- Outdoor Unit Components and Refrigerant Circuit
  66
- Front View of an Outdoor Unit
  66
- Control Box of the Outdoor Unit
  68
- Outdoor Unit Circuit Board
  69
  - M-NET Board
    70
  - INV Board
    71
  - Fan Board
    72
  - Noise Filter
    73
Remote Controller

74
Electrical Wiring Diagram

84
- Electrical Wiring Diagram of the Outdoor Unit
  86
- Electrical Wiring Diagram of Transmission Booster
  87
Refrigerant Circuit

88
- Refrigerant Circuit Diagram
  90
- Principal Parts and Functions
  91
Control

96
- Control
  98
- Functions and Factory Settings of the Dipswitches
  98
- Function of the Switch (Indoor Unit)
  101
- Controlling the Outdoor Unit
  104
  - Initial Control/Control at Start-Up
    104
  - Outline of Control Method
    104
  - Startup Sequence Rotation
    104
  - Bypass Control
    105
  - Compressor Frequency Control
    106
  - Controlling the Intermediate Pressure
    106
  - Controlling the Plate Heat Exchanger
    106
  - Controlling the Plate Heat Exchanger 2
    107
  - Defrost Operation Control
    107
  - Refrigerant Recovery Control
    108
  - Capacity Control of Outdoor Fan
    109
  - Control at Initial Start-Up
    109
  - Refrigerant Flow Control
    109
  - Emergency Operation Mode
    112
  - Starting the Emergency Operation
    112
  - Ending the Emergency Operation
    113
  - Operation Mode
    114
  - Mode Determination Flowchart
    116
- Operation Flow Chart
  116
  - Operations in each Mode
    118
  - Dry Operation
    120
Test Run Mode

122
Troubleshooting

158
- Error Code Lists
  160
- Responding to Error Display on the Remote Controller
  163
  - Serial Communication Error
    163
  - Discharge Temperature Fault
    164
  - Low Pressure Fault
    165
  - High Pressure/Intermediate Pressure Fault 1 (Outdoor Unit)
    166
  - High Pressure Fault 2 (Outdoor Unit)
    167
  - Refrigerant Overcharge
    167
  - Drain Sensor Submergence (Models with a Drain Sensor)
    168
  - Drain Sensor Submergence (Models with a Float Switch)
    169
  - Drain Pump Fault (Models with a Drain Sensor)
    170
  - Drain Pump Fault (Models with a Float Switch)
    171
  - Drain Sensor (Thd) Fault
    172
  - Water Leakage from Humidifier
    173
  - Water Supply Cutoff
    174
  - Open Phase
    175
  - Error Code 4106
    176
  - Transmission Power Supply Fault Error Detail Code FF (Outdoor Unit)
    176
  - Power Supply Signal Sync Error
    177
  - RPM Error/Motor Error
    177
  - Abnormal Bus Voltage Drop
    178
  - Abnormal Bus Voltage Rise
    179
  - VDC Error
    179
  - Logic Error
    180
  - Low Bus Voltage at Startup
    181
  - Heatsink Overheat Protection
    181
  - Overload Protection
    182
  - IPM Error
    182
  - ACCT Overcurrent Relay Trip
    183
  - DCCT Overcurrent Relay Trip
    183
  - Overcurrent Relay Trip
    183
  - Short-Circuited Ipm/Ground Fault
    183
  - Overcurrent Error Due to Short-Circuited Motor
    184
  - Heatsink Overheat Protection at Startup
    184
  - Return Air Temperature Sensor Fault
    185
  - Gas-Side Pipe Temperature Sensor Fault
    185
  - Intake Air Temperature Sensor Fault
    185
  - HIC Bypass Circuit Outlet Temperature Sensor Fault (Outdoor Unit)
    186
  - Discharge Temperature Sensor (TH4) Fault
    186
  - Accumulator Inlet Temperature Sensor (TH5) Fault
    186
  - HIC Circuit Outlet Temperature Sensor (TH6) Fault
    186
  - Heatsink Temperature Sensor (THHS) Fault
    187
  - High-Pressure Sensor Fault
    187
  - ACCT Sensor Fault
    188
  - DCCT Sensor Fault
    188
  - ACCT Sensor Circuit Fault
    189
  - DCCT Sensor Circuit Fault
    190
  - Open-Circuited Ipm/Loose ACCT Connector
    191
  - Faulty ACCT Wiring
    191
  - Loose Float Switch Connector
    192
  - Remote Controller Board Fault (Nonvolatile Memory Error)
    192
  - Remote Controller Board Fault (Clock IC Error)
    192
  - Indoor Unit Cleaning Operation Error
    193
  - Address Overlap
    193
  - Polarity Setting Error
    194
  - Transmission Processor Hardware Error
    195
  - Transmission Line Bus Busy Error
    196
  - Communication Error between Device and Transmission Processors
    196
  - No ACK Error
    197
  - Error Code 6607
    204
  - No Response Error
    205
  - MA Controller Signal Reception Error (no Signal Reception)
    206
  - MA Remote Controller Signal Transmission Error (Synchronization Error)
    207
  - MA Remote Controller Signal Transmission Error (Hardware Error)
    208
  - MA Controller Signal Reception Error (Start Bit Detection Error)
    209
  - Total Capacity Error
    210
  - Capacity Code Setting Error
    211
  - Wrong Number of Connected Units
    212
  - Address Setting Error
    213
  - Attribute Setting Error
    213
  - Error Code 7110/7111
    214
  - Connection Information Signal Transmission/Reception Error
    214
  - Remote Controller Sensor Fault
    214
  - Error Code 7113/7116/7117
    215
  - Function Setting Error
    215
  - REPLACE Unit Cleaning Setting Error
    215
  - Refrigerant Pipe Cleaning Has Not Been Completed
    215
  - Model Setting Error
    215
  - Incompatible Unit Combination
    216
  - Troubleshooting According to the Remote Controller Malfunction
    217
  - Outdoor Unit Stops at Times During Operation
    229
- Investigation of Transmission Wave Shape/Noise
  230
  - M-NET Transmission
    230
  - MA Remote Controller Transmission
    232
- Troubleshooting Principal Parts
  233
- Refrigerant Leak
  253
- Compressor Replacement Instructions
  255
- Plate Heat Exchanger ASSY Replacement Instructions
  257
- Troubleshooting Using the Outdoor Unit LED Error Display
  258
LED Monitor Display on the Outdoor Unit Board

260
- How to Read the LED on the Service Monitor
  262
  - LED Monitor Display on the Outdoor Unit Board
    262
  - Time Data Storage Function
    263
  - LED Monitor Display
    264
  - Data before Error
    265

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