Service manual

SiEBE12-625
ii Table of Contents
1. Introduction ............................................................................................vi
1.1 Safety Cautions.......................................................................................vi
Part 1 List of Functions ................................................................ 1
1. List of Functions......................................................................................2
1.1 Cooling Only Models ................................................................................2
1.2 Heat Pump Models...................................................................................7
Part 2 Specifications .................................................................. 13
1. Specifications........................................................................................14
1.1 Indoor Units - Cooling Only ....................................................................14
1.2 Outdoor Units - Cooling Only .................................................................22
1.3 Indoor Units - Heat Pump.......................................................................23
1.4 Outdoor Units - Heat Pump....................................................................33
Part 3 Printed Circuit Board Connector Wiring Diagram ........... 35
1. Printed Circuit Board Connector Wiring Diagram..................................36
1.1 Wall Mounted Type ................................................................................36
1.2 Duct Connected Type.............................................................................45
1.3 Floor / Ceiling Suspended Dual Type.....................................................47
1.4 Floor Standing Type...............................................................................49
1.5 Outdoor Units .........................................................................................52
Part 4 Function and Control........................................................ 55
1. Main Functions......................................................................................56
1.1 Frequency Principle................................................................................56
1.2 Power-Airflow Dual Flaps, Wide Angle Louvers and Auto-Swing ..........58
1.3 Operation Starting Control......................................................................60
1.4 Fan Speed Control for Indoor Units........................................................61
1.5 Programme Dry Function .......................................................................62
1.6 Automatic Operation...............................................................................63
1.7 Thermostat Control.................................................................................64
1.8 Night Set Mode.......................................................................................65
1.9 ECONO Mode ........................................................................................66
1.10 INTELLIGENT EYE (Wall Mounted Type only)......................................67
1.11 HOME LEAVE Operation .......................................................................69
1.12 Inverter POWERFUL Operation.............................................................70
1.13 Other Functions......................................................................................71
2. Function of Main Structural Parts..........................................................73
2.1 Main Structural Parts..............................................................................73
2.2 Function of Thermistor ...........................................................................74
3. Control Specification .............................................................................78
3.1 Mode Hierarchy......................................................................................78
3.2 Frequency Control..................................................................................79
3.3 Controls at Mode Changing / Start-up....................................................81
3.4 Discharge Pipe Control ..........................................................................82
3.5 Input Current Control..............................................................................82
3.6 Freeze-up Protection Control .................................................................83
3.7 Heating Peak-cut Control .......................................................................83