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General| Series | YMF-C |
|---|---|
| Cooling Capacity (kW) | 20.0 |
| Heating Capacity (kW) | 22.4 |
| Refrigerant | R410A |
| Power Supply | 380-415V, 50Hz |
| Operating Temperature (Cooling) | -5°C to 46°C |
| Operating Temperature (Heating) | -15°C to 24°C |
Proper indoor storage and sealing of piping materials to prevent contamination.
Coating flare and flange connections with ester/ether/alkylbenzene oil for proper sealing.
Ensuring no foreign matter enters the refrigerant circuit during brazing, using non-oxide brazing.
Pressurizing with nitrogen and using R407C for leakage checks; halide torch and R22 detector are unsuitable.
Symptoms indicating excess or lack of refrigerant and methods for adjustment.
Troubleshooting for pressure sensors, solenoid valves, LEV, IPM, diode stacks, and check valves.
Addressing remote controller issues, transmission errors, wave shape/noise problems.
Diagnosing and resolving faults related to the inverter, compressor, fan motor, and circuit breaker.
Troubleshooting BC controller sensors, LEV, and solenoid valves.
List of error codes and their corresponding meanings, causes, and countermeasures.
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