LG UU70W U34 - Air Conditioner Svc Manual(General); Table of Contents

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Only for training and service purposes

LGE Internal Use Only

Air Conditioner Service Manual

TABLE OF CONTENTS

Part 1 General Information ..........................................................................................................3

1. Safety Precautions........................................................................................................4

2. Model Line Up................................................................................................................7

3. Nomenclature ................................................................................................................8

Part 2 Functions & Controls......................................................................................................10

1. List of Functions & Accessory...................................................................................11

2. Installation Functions.................................................................................................13

3. Reliability .....................................................................................................................16

4. Convenience Functions & Controls .........................................................................17

5. Special Function & KIT...............................................................................................25

Part 3 Basic Control ..................................................................................................................26

1. Normal operation ........................................................................................................27

2 Compressor control ....................................................................................................27

3. EEV( Electronic Expansion Valve) control ...............................................................27

Part 4 Trouble Shooting ...........................................................................................................28

1. Self-diagnosis Function ............................................................................................29

2. Pump Down ................................................................................................................33

3. Evacuation..................................................................................................................34

4. Gas Charging..............................................................................................................35

5. Cycle Part....................................................................................................................36

6. Electronic Parts..........................................................................................................37

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