Service Manual
Table Of Contents
- Cover
- Table of contents
- Part 1 List of Functions
- Part 2 Specifications
- Part 3 Printed Circuit Board Connector Wiring Diagram
- Part 4 Refrigerant Circuit
- Part 5 Functions and Control
- Part 6 Test Operation and Field Settings
- Part 7 Remote Controller
- Part 8 Troubleshooting
- 1. Troubleshooting with LED
- 2. Service Diagnosis
- 3. Error Codes and Description
- 4. Troubleshooting for CTXG, CTXS, FTXS, CDXS, FDXS, FVXS Series
- 5. Troubleshooting for FFQ Series
- 6. Troubleshooting for Branch Provider (BP) Unit
- 7. Troubleshooting for Outdoor Unit
- 8. Thermistor Resistance/Temperature Characteristics
- 9. Pressure Sensor
- 10. Method of Replacing Inverter’s Power Transistors Modules
- Part 9 Appendix
Outdoor Unit SiUS181631EA
24 Printed Circuit Board Connector Wiring Diagram
Service PCB
(A2P)
Noise Filter PCB
(A3P)
Cool/Heat
Selector PCB
(A4P)
1) X205A Connector for main PCB (A1P)
2) H1P - H8P LED for service monitor (orange)
3) BS1 - BS5 Push button switch (mode, set, return, test, reset)
4) DS1 DIP switch for cool/heat selector
DS1
BS5
H1P
H2P
H3P
H4P
H5P
H6P
H7P H8P
X205A
BS4
BS3
BS2
BS1
2P174185-1
1) LA, NA Terminal for terminal strip (power supply)
2) LB, NB Terminal for main PCB (A1P)
3) E Terminal for ground wire
4) F1U Fuse (6.3 A / 250 V)
NBF1U
NA
LA
E
LB
2P174186-3
1) X1A Connector for main PCB (A1P)
2) X1M Terminal for cool/heat selector
X1M
X1A
2P174187-1