Mitsubishi Electric PUHY-250YMF-C Manuals

Manuals and User Guides for Mitsubishi Electric PUHY-250YMF-C. We have 1 Mitsubishi Electric PUHY-250YMF-C manual available for free PDF download: Service Handbook

Mitsubishi Electric PUHY-250YMF-C Service Handbook

Mitsubishi Electric PUHY-250YMF-C Service Handbook (167 pages)

AIR CONDITIONERS CITY MULTI

Brand: Mitsubishi Electric | Category: Air Conditioner | Size: 2.43 MB

Table of Contents

Table of Contents
2
Before Installation and Electric Work
3
Safety Precautions
3
Symbols Used
3
Precautons for Devices that Use R407C Refrigerant
4
Storage of Piping Material
5
Piping Machining
6
Necessary Apparatus and Materials and Notes on Their Handling
7
Brazing
8
Airtightness Test
9
Vacuuming
9
Charging of Refrigerant
10
Dryer
10
Appearance of Components
11
2 Component of Equipment

11
- Controller Box
  13
- MAIN Board
  14
- INV Board
  15
- FANCON Board
  16
- G/A Board
  16
- BC Controller
  17
- RELAY 10 Board
  18
- RELAY 4 Board
  18
- Refrigerant Circuit Diagram and Thermal Sensor
  19
- Electrical Wiring Diagram
  25
- Cooling Operation
  34
- Standard Operation Data
  34
- Heating Operation
  38
- Function of Dip SW and Rotary SW
  42
- Test Run Method
  52
- Control of Outdoor Unit
  59
- Control of BC Controller
  64
  - Control of LEV
    64
  - Control of SVA, SVB and SVC
    64
  - Control of SVM
    64
- Operation Flow Chart
  65
  - Outdoor Unit
    65
  - BC Controller (for PURY)
    66
  - Indoor Unit
    67
  - Cooling Operation Chart
    68
  - Heating Operation Check
    69
  - Dry Operation
    70
- List of Major Component Functions
  71
- Resistance of Temperature Sensor
  74
6 Refrigerant Amount Adjustment

75
7 Troubleshooting

85
- Principal Parts
  85
- BC Controller Disassembly Procedure
  114
  - Service Panel
    114
  - Control Box
    115
  - Thermistor (Liquid and Gas Piping Temperature Detection)
    116
  - Pressure Sensor
    116
  - Lev
    117
  - Solenoid Valve Coil
    117
  - Check Code List
    118
  - Mechanical
    120
  - Serial Transmission Abnormality
    120
- Self-Diagnosis and Countermeasures Depending on the Check Code Displayed
  120
  - Discharge Temperature Abnormality (Outdoor Unit)
    121
  - Low Pressure Saturation Temperature Trouble
    122
  - Liquid Level Detecting Temperature Sensor Abnormality
    122
  - Low Pressure Abnormality
    123
  - High Pressure Abnormality 1 (Outdoor Unit)
    123
  - High Pressure Abnormality (BC Controller)
    124
  - High Pressure Abnormality 2 (Outdoor Unit)
    124
  - Insufficient Refrigerant Abnormality
    125
  - Overcharged Refrigerant Abnormality
    125
  - Suction Pressure Abnormality
    126
  - Drain Pump Abnormality
    126
  - Drain Sensor Abnormality
    126
  - Operation of Float Switch
    126
  - Reverse Phase Abnormality
    127
  - Power Supply Sync Signal Abnormality
    127
  - Fan Speed Abnormality (Motor Abnormality)
    128
  - VDC Sensor/Circuit Abnormality
    128
  - Bus Voltage Abnormality
    129
  - Radiator Panel Overheat Protection
    129
  - Overload Protection
    130
  - IPM Alarm Output/Bus Voltage Abnormality
    130
  - Thermal Sensor Abnormality (Outdoor Unit)
    131
  - Cooling Fan Abnormality
    131
  - Pressure Sensor Abnormality (BC Controller)
    132
  - Pressure Sensor Abnormality (Outdoor Unit)
    132
  - IAC Sensor/Circuit Abnormality
    132
  - Different Indoor Model Connected Abnormality
    133
  - Communication/System
    134
  - Multiple Address Error
    134
  - Transmission Processor Hardware Error
    134
  - Transmission Circuit Bus-Busy Error
    135
  - Communications with Transmission Processor Error
    136
  - No ACK Error
    137
  - Single Refrigerant System
    137
  - Group Operation System Using Plural Refrigerants
    138
  - Connecting System with System Controller (MELANS)
    139
  - No Relation with System
    140
  - No Response Error
    141
  - System Error
    141
  - Total Capacity Error
    141
  - Capacity Code Error/Connected Unit Count over
    141
  - Connected Unit Count over
    142
  - Address Setting Error
    142
  - Connection No. Setting Error
    142
  - Remote Control Sensor Error
    142
- LED Monitor Display
  143
8 Preparation, Repairs and Refrigerant Refilling When Repairing Leaks

162
- Location of Leaks: Extension Piping or Indoor Units (When Cooling)
  162
  - Location of Leaks: Outdoor Unit (Cooling Mode)
    162
  - Location of Leaks: Extension Piping or Indoor Units (Heating Mode)
    163
- Location of Leaks: Outdoor Unit (When Heating)
  164
9 CHECK the COMPOSITION of the REFRIGERANT (PURY-P200·250YMF-C Only)

165

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