Hitachi RPI-0.8FSG1 Service Manual page 6

No.
2.8 Floor Concealed Type ........................................................................................................................ 2-102
2.8.1 Removing Air Filter ....................................................................................................................... 2-102
2.8.2 Removing Front Covers ................................................................................................................ 2-102
2.8.3 Removing Fan Motor .................................................................................................................... 2-103
2.8.4 Removing Printed Circuit Board (PCB) ........................................................................................ 2-103
2.8.5 Removing Thermistors for Liquid Pipe and Gas Pipe ................................................................... 2-103
2.9 Ceiling Type ....................................................................................................................................... 2-104
2.9.1 Removing Air Filter and Air Intake Grille ....................................................................................... 2-104
2.9.2 Removing Side Cover ................................................................................................................... 2-104
2.9.3 Removing Discharge Air Grille ...................................................................................................... 2-105
2.9.4 Removing Fan Motor .................................................................................................................... 2-106
2.9.5 Removing Bearing ........................................................................................................................ 2-108
2.9.6 Removing Coupling ...................................................................................................................... 2-108
2.9.7 Removing Automatic Louver Motor .............................................................................................. 2-109
2.9.8 Removing Thermistors for Liquid Pipe and Gas Pipe, and Electronic Expansion Valve Coil ....... 2-109
2.9.9 Checking Procedures for Electronic Expansion Valve Coil .......................................................... 2-110
2.9.10 Removing Printed Circuit Board (PCB) ........................................................................................ 2-111
2.10 Total Heat Exchanger ......................................................................................................................... 2-112
2.10.1 Structure ....................................................................................................................................... 2-112
2.10.2 Removing Electrical Parts ............................................................................................................ 2-112
2.10.3 Removing Air Filter and Total Heat Exchanger Element ............................................................... 2-113
2.10.4 Removing Fan Motor .................................................................................................................... 2-114
2.10.5 Air Filter Cleaning ......................................................................................................................... 2-115
2.10.6 Total Heat Exchanger Cleaning .................................................................................................... 2-115
2.11 Cleaning Indoor Unit Heat Exchanger ............................................................................................... 2-116
2.11.1 Required Tools for Cleaning (for All Indoor Units) ........................................................................ 2-116
2.11.2 In-the-Ceiling Type ....................................................................................................................... 2-117
2.11.3 Cleaning 4-Way Cassette Type Indoor Unit .................................................................................. 2-120
2.11.4 Cleaning 2-Way Cassette Type Indoor Unit .................................................................................. 2-124
2.11.5 Cleaning Wall Type Indoor Unit .................................................................................................... 2-127
2.11.6 Cleaning Floor Type and Floor Concealed Type Indoor Unit ........................................................ 2-128
2.11.7 Cleaning Ceiling Type Indoor Unit ................................................................................................ 2-131
2.12 Collecting Refrigerant for Replacing Indoor Unit ................................................................................ 2-133
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