Mitsubishi Electric PUHY-P1250 Manuals

Manuals and User Guides for Mitsubishi Electric PUHY-P1250. We have 1 Mitsubishi Electric PUHY-P1250 manual available for free PDF download: Service Handbook

Mitsubishi Electric PUHY-P1250 Service Handbook

Mitsubishi Electric PUHY-P1250 Service Handbook (334 pages)

Brand: Mitsubishi Electric | Category: Air Conditioner | Size: 14.06 MB

Table of Contents

Chapter 1 Check before Servicing

8
- Safety Precautions
  2
- Table of Contents
  8
- Preparation for Piping Work
  12
- Read before Servicing
  12
- Tool Preparation
  13
  - Handling and Characteristics of Piping Materials, Refrigerant, and Refrigerant Oil
    14
- Piping Materials
  14
- Pipe Processing
  16
- Storage of Piping Materials
  16
- Characteristics of the New and Conventional Refrigerants
  17
- Refrigerant Oil
  18
  - Working with Refrigerant Piping
    19
- Pipe Brazing
  19
- Air Tightness Test
  20
- Vacuum Drying
  21
- Refrigerant Charging
  22
  - Precautions for Wiring
    23
  - Cautionary Notes on Installation Environment and Maintenance
    25
Chapter 2 Restrictions

26
Chapter 3 Major Components, Their Functions and Refrigerant Circuits

60
Chapter 4 Electrical Components and Wiring Diagrams

74
- Outdoor Unit Circuit Board Arrangement
  76
- Outdoor Unit Control Box
  76
- Fan Box
  79
- Control Board
  80
- Outdoor Unit Circuit Board Components
  80
- M-NET Board (Transmission Power Supply Board)
  81
- INV Board
  82
- Fan Board
  84
- Noise Filter
  85
- Capacitor Board
  87
- Connect Board
  88
- Outdoor Unit Electrical Wiring Diagrams
  89
- Transmission Booster Electrical Wiring Diagrams
  91
Chapter 5 Control

92
- Dipswitch Functions and Factory Settings
  94
- Outdoor Unit Switch Functions and Factory Settings
  94
- Indoor Unit Switch Functions and Factory Settings
  98
- Remote Controller Switch Functions and Factory Settings
  100
- Initial Control
  102
- Outdoor Unit Control
  102
- Overview
  102
- Rotation Control
  102
- Startup Control
  102
- Refrigerant Bypass Control
  103
- Frequency Control
  104
- Defrost Operation Control
  105
- Continuous Heating Mode Control
  106
- Refrigerant Recovery Control
  107
- Control at Initial Startup
  108
- Outdoor Unit Fan Control
  108
- Refrigerant Flow Control (Linear Expansion Valves 2A and 2B)
  108
- Subcool Coil Control (Linear Expansion Valve 1)
  108
- Emergency Operation Mode
  111
- Compressor Heater Control (P450 and P500 Models)
  114
- Control of IH Energization Without the Compressor in Operation (Not Applicable to the P450 and P500 Models)
  114
- Demand Control
  114
- Operation Mode
  114
- Operation Flowcharts
  115
- Operation Sequence Flowchart
  115
- Actions Performed in Different Modes
  117
Chapter 6 Test Run

120
Chapter 7 Troubleshooting Using Error Codes

172
- Error Code and Preliminary Error Code Lists
  174
- Error Code Definitions and Solutions: Codes [0 - 999]
  178
- Error Code [0403]
  178
- Error Code [0404]
  179
- Error Code Definitions and Solutions: Codes [1000 - 1999]
  180
- Error Code [1102]
  180
- Error Code [1301]
  181
- Error Code [1302] (During Operation)
  182
- Error Code [1302] (at Startup)
  183
- Error Code [1500]
  183
- Error Code Definitions and Solutions: Codes [2000 - 2999]
  184
- Error Code [2500] (Models with a Drain Sensor)
  184
- Error Code [2500] (Models with a Float Switch)
  185
- Error Code [2502] (Models with a Drain Sensor)
  186
- Error Code [2502] (Models with a Float Switch)
  187
- Error Code [2503]
  188
- Error Code [2600]
  189
- Error Code [2601]
  189
- Error Code Definitions and Solutions: Codes [3000 - 3999]
  190
- Error Code [3121]
  190
- Error Code Definitions and Solutions: Codes [4000 - 4999]
  191
- Error Code [4102]
  191
- Error Code [4106]
  192
- Error Code [4109]
  192
- Error Code [4115]
  193
- Error Code [4116]
  193
- Error Code [4121]
  194
- Error Code [4124]
  195
- Error Codes [4220, 4225, 4226] Detail Code 108
  196
- Error Codes [4220, 4225, 4226] Detail Code 109
  197
- Error Code [4220] Detail Code 110
  198
- Error Codes [4220, 4225, 4226] Detail Code 111, 112
  198
- Error Code [4220] Detail Code 123
  199
- Error Code [4220] Detail Code 124
  199
- Error Code [4230] Detail Code 125
  200
- Error Codes [4220, 4225, 4226] Detail Code 131
  200
- Error Code [4230] Detail Code 126
  201
- Error Code [4240]
  202
- Error Codes [4250, 4255, 4256] Detail Code 101
  203
- Error Codes [4250, 4255, 4256] Detail Code 104
  204
- Error Code [4250] Detail Codes 106 and 107
  205
- Error Codes [4250, 4255, 4256] Detail Code 105
  205
- Error Code [4250] Detail Codes 121, 128, and 122
  206
- Error Code [4260]
  206
- Error Code Definitions and Solutions: Codes [5000 - 5999]
  207
- Error Codes [5101, 5102, 5103, 5104]
  207
- Error Codes [5102,5103,5104,5105,5106,5107,5109,5111]
  208
- Error Code [5110]
  209
- Error Code [5120]
  210
- Error Code [5201]
  210
- Error Code [5301] Detail Code 115
  211
- Error Code [5301] Detail Code 117
  211
- Error Code [5301] Detail Code 119
  212
- Error Code [5301] Detail Code 120
  212
- Error Code [5301] Detail Code 127
  213
- Error Codes [5305, 5306] Detail Code 132
  213
- Error Code [5701]
  214
- Error Codes [5305, 5306] Detail Code 133
  214
- Error Codes [5305, 5306] Detail Code 134
  214
- Error Code Definitions and Solutions: Codes [6000 - 6999]
  215
- Error Code [6201]
  215
- Error Code [6202]
  215
- Error Code [6600]
  216
- Error Code [6601]
  216
- Error Code [6602]
  217
- Error Code [6603]
  218
- Error Code [6606]
  218
- Error Code [6607] Error Source Address = Outdoor Unit (OC)
  219
- Error Code [6607] Error Source Address = Indoor Unit (IC)
  220
- Error Code [6607] Error Source Address = LOSSNAY (LC)
  221
- Error Code [6607] Error Source Address = ME Remote Controller
  222
- Error Code [6607] Error Source Address = System Controller
  223
- Error Code [6607] All Error Source Addresses
  224
- Error Code [6607] no Error Source Address
  225
- Error Code [6608]
  226
- Error Code [6831]
  227
- Error Code [6832]
  228
- Error Code [6833]
  229
- Error Code [6834]
  230
- Error Code [6840]
  231
- Error Code [6841]
  231
- Error Code [6842]
  232
- Error Code [6843]
  233
- Error Code [6846]
  234
- Error Code Definitions and Solutions: Codes [7000 - 7999]
  235
- Error Code [7100]
  235
- Error Code [7101]
  236
- Error Code [7102]
  237
- Error Code [7105]
  238
- Error Code [7106]
  238
- Error Code [7110]
  239
- Error Code [7111]
  239
- Error Code [7113]
  240
- Error Code [7117]
  241
- Error Code [7130]
  242
Chapter 8 Troubleshooting Based on Observed Symptoms

244
Chapter 9 Led Status Indicators on the Outdoor Unit Circuit Board

296
- How to Read the LED
  298
- LED Status Indicators
  298
- Initial LED Display
  299
- Clock Memory Function
  300
  - LED Status Indicators Table
    301

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