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 Protection Control
Function 109
4.5 STD Compressor Overload Protection
This control is used to prevent abnormal heating due to overcurrent to the compressor resulting
from failures of STD compressor such as locking.
4.6 Injection Control (only for RXQ5P)
For transitional rise in discharge pipe temperature, have the liquid refrigerant flow into the
suction side to reduce the discharge pipe temperature for the compressor protection.
STD compressor ON
CT detection current value>15.0A
STD compressor OFF for 30 min.*
Demand to operate.
When occurring 3 times within 90 minutes,
the malfunction code “ E6 ” is output.
*If the power supply is reset while in
operation prohibition mode, the prohibition
timer will continue counting when the
power supply is turned ON.
SVT = OFF
SVT = ON
HTdi
<
107˚CHTdi
>
112˚C
HTdi: Correction value of the discharge pipe
temperature on the INV compressor.