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 Piping Diagrams
Appendix 277
CDXS24LVJU FVXS09/12NVJU
FVXS15/18NVJU FFQ09/12/15/18Q2VJU
INDOOR UNIT
(
3/8CuT
)
HEAT EXCHANGER
SIROCCO FAN
M
FAN MOTOR
(
1/2CuT
)
REFRIGERANT FLOW
COOLING
HEATING
THERMISTOR
ON HEAT
EXCH.
FIELD PIPING
(
1/4CuT
)
FIELD PIPING
(
5/8CuT
)
4D080593
INDOOR UNIT
MUFFLER ASSY HEAT EXCHANGER
1/4 CuT
9/32 CuT
1/4 CuT
1/4 CuT
1/4 CuT
M
FAN MOTORTURBO FAN
1/4 CuT
3/8 CuT
FIELD PIPING
(1/4 CuT)
FIELD PIPING
(3/8 CuT)
THERMISTOR
ON HEAT EXCH.
REFRIGERANT FLOW
COOLING
HEATING
4D091794
INDOOR UNIT
MUFFLER ASSY HEAT EXCHANGER
1/4 CuT
9/32 CuT
1/4 CuT
1/4 CuT
1/4 CuT
1/4 CuT
M
1/4 CuT
FAN MOTORTURBO FAN
1/4 CuT
3/8 CuT
REFRIGERANT FLOW
COOLING
HEATING
FIELD PIPING
(
1/4 CuT
)
FIELD PIPING
(
1/2 CuT
)
THERMISTOR
ON HEAT EXCH.
4D091795A
REFRIGERANT FLOW
M
MODEL
FFQ09Q2VJU
1/4 (6.4) 3/8 (9.5)
1/2 (12.7)
FFQ12Q2VJU
FFQ15Q2VJU
FFQ18Q2VJU
AB
FAN
HEAT EXCHANGER
COOLING
HEATING
LIQUID PIPE
CONNECTION PORT
φA
GAS PIPE
CONNECTION PORT
φB
4D106033