Specifications
Table Of Contents
- Cover
- Table of Contents
- Part 1 General Information
- Part 2 Specifications
- Part 3 Refrigerant Circuit
- Part 4 Function
- Part 5 Test Operation
- Part 6 Troubleshooting
- Part 7 Appendix
- 1. Piping Diagrams
- 2. Wiring Diagrams for Reference
- 3. List of Electrical and Functional Parts
- 4. Option List
- 5. Piping Installation Point
- 6. Example of connection (R-410A Type)
- 7. Thermistor Resistance / Temperature Characteristics
- 8. Pressure Sensor
- 9. Method of Checking the Inverter’s Power Transistors and Diode Modules
- Part 8 Precautions for New Refrigerant (R-410A)
- Index
- Drawings & Flow Charts

Si34-704 Piping Diagrams
Appendix 319
FXDQ
Refrigerant pipe connection port diameters
FXMQ125MF / 200MF / 250MFV1
Refrigerant pipe connection port diameters
4D043864H
(mm)
Model Gas Liquid
FXDQ20N(A), P / 25N(A), P / 32N(A), P /
40N(A) / 50N(A)VE(T)
φ12.7 φ6.4
FXDQ63N(A)VE(T) φ15.9 φ9.5
4D018650B
(mm)
Model Gas Liquid
FXMQ125MFV1 φ15.9 φ9.5
FXMQ200MFV1 φ19.1 φ9.5
FXMQ250MFV1 φ22.2 φ9.5