Servicing - Hitachi RAI-50PPD Service Manual

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SERVICING

1. Servicing .................................................................................................................................................... 85

1.1

4-Way Cassette (Compact) Type ...................................................................................................... 85

1.1.1

Removing Air Filter and Air Inlet Grille ..................................................................................... 85

1.1.2 Removing Electrical Box Cover ............................................................................................... 86

1.1.3 Removing Optional Air Panel ................................................................................................... 87

1.1.4 Removing Turbo Fan and Fan Motor ....................................................................................... 89

1.1.5 Removing Printed Circuit Board .............................................................................................. 90

1.1.6

1.1.7

1.1.8

Removing Float Switch .............................................................. ........................................................ 93

1.1.9 Removing Gas Pipe Thermistor............................................................................................................ 94

1.1.10 Removing Inlet Air Thermistor .......................................................................................................... 95

1.1.11 Removing Auto Louver Motors and Louver ......................................................................................... 96

1.2

Cleaning Indoor Unit Heat Exchanger ................................................................................................ 97

1.2.1 Required Tools for Cleaning ..................................................................................................... 97

1.2.2 Cleaning Procedure .............................................................................................................................. 98

1.3 Dismantle procedure of Outdoor Unit .. .................................................................................................. 102

Pan ................................................................................................................. 91

Mechanism

............................................................................................... 92

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