Hitachi RAS-8FSG Control Circuit Board Manuals

Manuals and User Guides for Hitachi RAS-8FSG Control Circuit Board. We have 1 Hitachi RAS-8FSG Control Circuit Board manual available for free PDF download: Service Manual

Hitachi RAS-8FSG Service Manual

Hitachi RAS-8FSG Service Manual (384 pages)

INVERTER-DRIVEN MULTI-SPLIT SYSTEM HEAT PUMP AIR CONDITIONERS

Brand: Hitachi | Category: Air Conditioner | Size: 10 MB

Table of Contents

Table of Contents
3
1 Troubleshooting

11
2 Servicing

141
- Outdoor Unit
  141
- In-The-Ceiling Type (RPI-0.8FSG1 to RPI-5.0FSG1)
  177
  - Removing Long Life Filter
    177
  - Removing Printed Circuit Board (PCB)
    177
  - Removing Indoor Fan and Fan Motor
    179
  - Removing Thermistor for Liquid Piping and Gas Piping
    186
  - Removing Electronic Expansion Valve Coil
    187
  - Removing Float Switch
    187
  - Removing Drain Pump
    188
  - Removing Drain Pan
    189
- In-The-Ceiling Type (RPI-8FSG1 and RPI-10FSG1)
  191
- 4-Way Cassette Type
  195
  - Removing Long Life Filter
    195
  - Removing Air Intake Grille
    195
  - Removing Electrical Box Cover
    196
  - Removing Optional Air Panel
    196
  - Removing Fan Runner and Fan Motor
    197
  - Removing Bell-Mouth
    198
  - Removing Printed Circuit Board (PCB)
    199
  - Removing Drain Pan
    200
  - Removing Drain-Up Mechanism
    201
  - Removing Float Switch
    201
  - Removing Thermistors for Liquid Pipe and Gas Pipe
    202
  - Removing Electronic Expansion Valve Coil
    203
  - Removing Automatic Louver Motor
    205
- 2-Way Cassette Type
  206
  - Removing Long Life Filter and Air Intake Grille
    206
  - Removing Electrical Box Cover
    206
  - Removing Optional Air Panel
    207
  - Removing Fan Runner and Fan Motor
    208
  - Removing Printed Circuit Board (PCB)
    210
  - Removing Float Switch
    211
  - Removing Drain-Up Mechanism
    212
  - Removing Drain Pan
    213
  - Removing Thermistors for Liquid and Gas Pipes
    214
  - Removing Electronic Expansion Valve Coil
    215
  - Removing Automatic Louver Motor
    217
- Wall Type
  219
  - Removing Air Filter
    219
  - Removing Front Panel
    220
  - Removing Motor for Automatic Louver
    222
  - Removing Thermistors for Liquid Pipe, Gas Pipe, Discharge Air and Suction Air
    223
  - Removing Electrical Box Cover
    225
  - Removing Indoor PCB
    226
  - Removing Drain Pan
    227
  - Removing Heat Exchanger
    228
  - Removing Fan and Fan Motor
    230
  - Removing Electronic Expansion Valve Coil
    232
- Floor Type
  234
  - Removing Air Intake Grille
    234
  - Removing Air Filter
    234
  - Removing Discharge Air Grille
    235
  - Removing
    235
  - Removing Fan Motor
    236
  - Removing Printed Circuit Board (PCB)
    238
  - Removing Thermistors for Liquid Pipe and Gas Pipe
    240
- Floor Concealed Type
  242
  - Removing Air Filter
    242
  - Removing Front Covers
    242
  - Removing Fan Motor
    243
  - Removing Printed Circuit Board (PCB)
    243
  - Removing Thermistors for Liquid Pipe and Gas Pipe
    243
- Ceiling Type
  244
- Total Heat Exchanger
  252
  - Structure
    252
  - Removing Electrical Parts
    252
  - Removing Air Filter and Total Heat Exchanger Element
    253
  - Removing Fan Motor
    254
  - Air Filter Cleaning
    255
  - Total Heat Exchanger Cleaning
    255
- Cleaning Indoor Unit Heat Exchanger
  256
- Collecting Refrigerant for Replacing Indoor Unit
  273
3 Main Parts

275
- Inverter
  275
- AC Chopper
  286
- Auto-Louver Mechanism
  288
  - 4-Way Cassette Type
    288
  - 2-Way Cassette Type
    289
  - Ceiling Type
    290
- Scroll Compressor
  291
  - Reliable Mechanism for Low Vibration and Low Sound
    291
  - Principle of Compression
    291
  - Structure
    292
- Thermistor
  294
  - Thermistor for Indoor Unit
    294
  - Thermistor for Outdoor Unit
    295
- Electronic Expansion Valve
  297
  - Electronic Expansion Valve for Outdoor Units
    297
  - Electronic Expansion Valve for Indoor Units
    298
- Pressure Sensor
  299
- High Pressure Protection Device
  300
- Noise Filter (NF)
  301
- Capacitor (CB1, CB2)
  303
- Reactor (DCL)
  303
4 Optional Function

305
5 Field Work Instruction

361

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