Hitachi YUTAKI RAS-H(V)RNME-AF Manuals

Manuals and User Guides for Hitachi YUTAKI RAS-H(V)RNME-AF. We have 1 Hitachi YUTAKI RAS-H(V)RNME-AF manual available for free PDF download: Service Manual

Hitachi YUTAKI RAS-H(V)RNME-AF Service Manual

Hitachi YUTAKI RAS-H(V)RNME-AF Service Manual (424 pages)

Yutaki S Series

Brand: Hitachi | Category: Air Conditioner | Size: 34.38 MB

Table of Contents

Service Manual
1
Table of Contents
5
1 General Information

11
- General Information
  12
  - General Notes
    12
  - Introduction
    12
  - Contents
    13
  - Environtment-Friendly Units
    13
- Applied Symbols
  14
- Product Guide
  15
2 Unit Installation

21
- SMGB0070 Rev. 1
  21
- Outdoor Unit Installation
  22
  - Initial Check
    22
  - Transportation of Outdoor Unit
    23
  - Center of Gravity
    24
  - Factory-Supplied Accessories for RAS-(8-10)HRNME-AF
    25
  - Installation Space
    26
  - Installation Place Provision
    36
  - Optional Parts and Installation
    39
  - Specifications
    41
- Indoor Unit Installation
  58
  - Selection of the Installation Location
    58
  - Wall Mounting Procedure
    59
  - Cover Assembly
    60
  - Drain Pan Assembly
    61
  - Service Space
    61
- DHWT - Domestic Hot Water Tank
  62
  - Name of Parts
    62
  - Unit Installation
    63
  - Selection Procedure for DHWT Units
    63
  - Working Space
    63
3 Piping Work and Refrigerant Charge

65
- Refrigerant and Water Pipe Work
  66
- Water Pipe Work and Connection
  77
  - General Notes
    77
  - Water Piping Connection
    78
  - Draining Pipe Work
    79
  - Circuit Water Filling-In
    79
  - Water Flow Adjustment
    79
- Pressure Charts
  81
- DHWT - Domestic Hot Water Tank
  83
  - Hydraulic Circuit
    83
  - Pressure Drop
    84
4 Electrical Wiring

85
- Unit Electrical Wiring and Connection
  86
  - General Check
    86
  - Electrical Connection of Outdoor Unit
    87
  - Electrical Connection of Indoor Unit
    89
  - Control System
    91
- Setting of DIP Switches and RSW Switches
  97
  - Outdoor Unit
    97
  - Optional Functions 7
    98
  - Indoor Unit
    100
- Common Wiring
  107
  - Electrical Wiring between Outdoor and Indoor Unit
    107
  - Wire Sizes
    108
- DHWT - Domestic Hot Water Tank
  109
  - Electrical Wiring Connection
    110
  - Internal Wiring
    112
  - Electric Heater
    114
- Electrical Wiring Diagrams
  116
  - Electrical Wiring Diagram for Indoor Unit
    116
  - Electrical Wiring Diagram for Outdoor Unit
    118
5 Control System

123
- Device Control System
  124
- Printed Circuit Board
  125
  - Indoor Unit
    125
  - Outdoor Unit
    126
- Safety Protection and Control Device
  128
  - Indoor Unit
    128
  - Outdoor Unit
    128
- Standard Control Functions
  129
  - Indoor Unit
    129
  - Installation Information
    171
6 LCD User's Interface

189
- Description of the Hardware
  190
  - Button Definitions
    190
- Comprehensive View
  190
- Description of the Icons
  192
- Controller Configuration
  194
- Unit Configuration
  195
  - Operation Display
    195
  - Space Heating Configuration
    196
  - Space Cooling Configuration
    198
  - Dhw
    200
  - Optional Functions
    202
- Installer Access
  203
  - Unit Configuration
    204
  - System Configuration
    206
  - Water Pump
    208
7 Optional Functions

211
- Indoor Unit
  212
- Outdoor Units
  219
  - Available Ports
    219
  - Configuration
    221
  - Description of Optional Output Signals
    223
8 Commissioning

225
- Preliminary Check
  226
  - Checking the Unit
    226
  - Electrical Checking
    226
  - Hydraulic Circuit Checking
    226
  - Checking the Refrigerant Circuit
    227
- Commissioning Procedure
  227
- Indoor Unit Test Run
  228
- Outdoor Unit Test Run
  229
9 Electrical Checks of the Main Parts

231
- Inverter
  232
  - Specifications of Inverter
    232
  - Inverter Time Chart
    234
  - Protective Function
    235
  - Overload Control
    236
- Thermistor
  237
- Electronic Expansion Valve
  240
  - Electronic Expansion Valve for the Outdoor Unit
    240
  - Electronic Expansion Valve for the Indoor Unit
    241
- High Pressure Protection Device
  242
- Noise Filter (NF)
  243
  - Noise Filter for 1
    243
  - Noise Filter for 3N
    244
- Capacitor (CB1, CB2)
  244
- Reactor (DCL)
  245
  - Reactor (DCL) for 1
    245
  - Reactor (DCL) for 3N
    245
- Scroll Compressor
  246
10 Spare Parts

247
- Outdoor Units
  248
  - Ras-2Hvrn2
    248
  - Ras-3Hvrnme-Af
    250
  - Electrical Parts
    251
  - Ras-(4-6)Hvrnme-Af
    253
  - Ras-(4-6)Hrnme-Af
    256
  - Ras-(8/10)Hrnme-Af
    259
- Indoor Units
  262
11 Servicing

267
- Outdoor Unit
  268
  - Ras-2Hvrn2
    268
    
    Removing the Compressor
    270
    
    Removing Electronic Expansion Valve Coil
    272
    
    Troubleshooting
    273
  - Ras-3Hvrnme-Af
    275
    
    Removing Reversing Valve
    282
    
    Removing Electrical Components
    284
  - Ras-(4-6)H(V)Rnme-Af
    286
  - Ras-(8/10)Hrnme-Af
    302
  - Pressure Switch
    308
- Indoor Unit
  318
  - Removing Service Cover
    318
  - Replacing Electrical Components
    319
  - Replacing Hydraulic Components
    324
  - Replacing Refrigerant Parts
    332
12 Troubleshooting

337
- Troubleshooting Procedure
  338
  - Alarm Code
    338
  - Troubleshooting by Alarm Code
    341
Contents

397

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