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 Precautions for New Refrigerant (R-410A)
Precautions for New Refrigerant (R-410A) 375
2 Temperature scale indicates the relationship between pressure and temperature in gas
saturated state.
Differences
2 Change in pressure
2 Change in service port diameter
7. Charge hose for R-410A
Specifications
2 Working pressure 5.08 MPa (51.8 kg/cm
2
)
2 Rupture pressure 25.4 MPa (259 kg/cm
2
)
2 Available with and without hand-operate valve that prevents refrigerant from outflow.
Differences
2 Pressure proof hose
2 Change in service port diameter
2 Use of nylon coated material for HFC resistance
8. Charging cylinder
Specifications
2 Use weigher for refrigerant charge listed below to charge directly from refrigerant cylinder.
Differences
2 The cylinder can not be used for mixed refrigerant since mixing ratio is changed during
charging.
When R-410A is charged in liquid state using charging cylinder, foaming phenomenon is
generated inside charging cylinder.
(Hose with ball valve)
Can not be used