PACD011001C2
viii Table of Contents
1.1 Outdoor Unit Refrigerant System Diagram...........................................414
1.2 Flow of Refrigerant in Each Operating Mode .......................................417
2. List of Safety Device and Function Parts Setting Value......................421
2.1 Outdoor Unit.........................................................................................421
2.2 Indoor Unit............................................................................................422
3. Outline of Control ................................................................................425
3.1 Outdoor Unit.........................................................................................425
3.2 Indoor Unit............................................................................................445
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1. Test Operation ....................................................................................452
1.1 Procedure and Outline .........................................................................452
1.2 Operation When Power is Turned On ..................................................454
1.3 Outdoor Unit PC Board Ass’y...............................................................455
1.4 Setting Modes ......................................................................................457
1.5 Cool / Heat Mode Selection..................................................................464
1.6 Low Noise Operation............................................................................469
1.7 Demand Control ...................................................................................470
1.8 Sequential Start....................................................................................471
1.9 Wiring Check Operation .......................................................................472
1.10 Additional Refrigerant Charge Operation .............................................473
1.11 Refrigerant Recovery Mode .................................................................474
1.12 Indoor Field Setting ..............................................................................475
1.13 Centralised Control Group No. Setting.................................................477
1.14 Contents of Control Modes...................................................................479
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1. Operation Flowcharts..........................................................................483
1.1 Indoor Unit Operation Flowchart ..........................................................483
2. Troubleshooting by Remote Controller ...............................................488
2.1 The INSPECTION / TEST Button.........................................................488
2.2 Self-diagnosis by Wired Remote Controller .........................................489
2.3 Self-diagnosis by Wireless Remote Controller.....................................490
2.4 Operation of The Remote Controller’s Inspection /
Test Operation Button ..........................................................................493
2.5 Remote Controller Service Mode .........................................................494
2.6 Remote Controller Self-Diagnosis Function
(Display of Malfunction Code) ..............................................................496
3. Troubleshooting ..................................................................................498
3.1 Indoor Unit: Error of External Protection Device ..................................498
3.2 Indoor Unit: PC Board Defect...............................................................499
3.3 Indoor Unit: Malfunction of Drain Level Control System (33H).............500
3.4 Indoor Unit: Fan Motor (M1F) Lock, Overload......................................501
3.5 Indoor Unit: Malfunction of Swing Flap Motor (M1S)............................502
3.6 Indoor Unit: Malfunction of Moving Part of
Electronic Expansion Valve (Y1E)........................................................503
3.7 Indoor Unit: Drain Level above Limit ....................................................504
3.8 Indoor Unit: Malfunction of Capacity Determination Device.................505
3.9 Indoor Unit: Malfunction of Thermistor (R2T) for Liquid Pipe...............506
3.10 Indoor Unit: Malfunction of Thermistor (R3T) for Gas Pipes ................507
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