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
SiUS181631EA Test Operation
Test Operation and Field Settings 119
Example of DIP switch (DS2) settings on the BP unit's PCB
DS1 ~ 4 : Factory setting is OFF.
The BP unit 1 through 3 show the first through third unit, respectively. The order of these BP units is
flexible.
The above table is only for your reference. The redundancy of addresses can be avoided when the
DIP switch settings are individually specified.
With the DIP switch settings reprogrammed, power on the outdoor unit and BP unit again. Check
for address redundancy.
Note: If an error message is displayed on the indoor unit, BP unit or outdoor unit, follow its code and
description.
DS2-1 DS2-2 DS2-3 DS2-4
BP unit 1 OFF OFF ON OFF
BP unit 2 OFF OFF OFF ON
BP unit 3 OFF OFF ON ON