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 Refrigerant Flow for Each Operation Mode
Refrigerant Circuit 81
Cooling Oil Return Operation
" OFF " " ON "" ON "
EV:224pls EV:Nomal
FanFan
Indoor unit operation
Thermostat "OFF"
Indoor unit
FilterFilter
Heat exchanger
Indoor unit
FilterFilter
Heat exchanger
Fan ON
Fan OFF
Fan ON
Thermostat "ON"
Indoor unit
"High temperature, high pressure gas"
"High temperature, high pressure liquid"
"Low temperature, low pressure"
Heat exchanger
Electronic expansion valve
EV:Nomal
control
FilterFilter
Fan
Electronic expansion valve Electronic expansion valve