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
Wiring Diagrams SiUS181631EA
284 Appendix
FDXS09/12LVJU, CDXS15/18/24LVJU
Note: A1P: Control PCB
A2P: Display/signal receiver PCB
Refer to Part 3 for Printed Circuit Board Connector Wiring Diagram.
X1M
A1P
11BLK
A2P
H1
2
WHT 2
→
F1U
3
V1TR
RED 3
OUTDOOR
3.15A
LED LED
LED
S1
S26
GRN
H2
11
FIELD WIRING.
H3PH2PH1P
GRN/YLW
H3
CAUTION
()
GND
631
S21
S1W
S1
RED BLK
S7
1010
1GRY
YLW
RTH1
S32
2121
3
C1
WHT
BRNBRN
t°
M
t°
1~
Q1M
PPL
R1T
INDOOR
130°C
BLU
R2T
M1F
: PROTECTIVE GROUND
C1 : CAPACITOR (M1F)
F1U : FUSE
WIRELESS
REMOTE
CONTROLLER
TRANSMISSION
CIRCUIT
: PILOT LAMP H1P~H3P
: FAN MOTORM1F
: PRINTED CIRCUIT BOARDA1P~A2P
: THERMAL PROTECTOR (FOR MOTOR)Q1M
: THERMISTORR1T~R2T
S1~S32, RTH1 : CONNECTOR
: OPERATION SWITCHS1W
: TRIACV1TR
: TERMINAL BLOCKX1M
TERMINAL FOR
CENTRALIZED CONTROL
SIGNAL
RECEIVER
NOTE THAT OPERATION WILL
RESTART AUTOMATICALLY IF
THE MAIN POWER SUPPLY IS
TURNED OFF AND THEN BACK
ON AGAIN.
(266°F)
C: 3D073998B