SiEBE18-526
ii Table of Contents
1. Introduction ........................................................................................... vii
1.1 Safety Cautions ...................................................................................... vii
Part 1 List of Functions ................................................................ 1
1. List of Functions ......................................................................................2
Part 2 Specifications .................................................................... 7
1. Specifications ..........................................................................................8
1.1 Outdoor Units ...........................................................................................8
1.2 BP Unit .....................................................................................................9
1.3 Indoor Units ............................................................................................10
Part 3 Printed Circuit Board Connector Wiring Diagram ........... 19
1. Printed Circuit Board Connector Wiring Diagram..................................20
1.1 Outdoor Unit RMXS 112/140/160 D7V3B ..............................................20
1.2 Branch Provider Unit BPMKS967A2B, B2B, A3B, B3B .........................24
1.3 Wall Mounted Type 20/25/35/50 Class - D Series .................................25
1.4 Wall Mounted Type 20/25/35 Class - C Series ......................................27
1.5 Wall Mounted Type 50/60/71 Class - B Series.......................................29
1.6 Duct Connected Type.............................................................................31
1.7 Floor / Ceiling Suspended Dual Type.....................................................32
1.8 Floor Standing Type ...............................................................................35
1.9 Ceiling Mounted Cassette 600×600 Type ..............................................38
1.10 Ceiling Suspended Type ........................................................................40
Part 4 Refrigerant Circuit ........................................................... 43
1. Refrigerant Circuit .................................................................................44
1.1 RMXS 112/140/160 D7V3B....................................................................44
1.2 BPMKS 967 A2B, B2B, A3B, B3B..........................................................46
2. Functional Parts Layout ........................................................................47
2.1 RMXS 112/140/160 D7V3B....................................................................47
3. Refrigerant Flow for Each Operation Mode...........................................48
3.1 Cooling Operation ..................................................................................48
3.2 Heating Operation ..................................................................................49
3.3 Cooling Oil Return Operation .................................................................50
3.4 Heating Oil Return Operation & Defrost Operation ................................51
Part 5 Function............................................................................ 53
1. Operation Mode ....................................................................................54
2. Basic Control.........................................................................................55
2.1 Normal Operation ...................................................................................55
2.2 Compressor PI Control...........................................................................56
2.3 Electronic Expansion Valve PI Control...................................................59
2.4 Cooling Operation Fan Control...............................................................60
3. Special Control......................................................................................61
3.1 Startup Control .......................................................................................61
3.2 Oil Return Operation ..............................................................................62
3.3 Defrosting Operation ..............................................................................64
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