xindacool Refrigeration Equipment Origin Factory | Maintenance for Idle Refrigeration Units, Short-Term Shutdown, Long-Term Shutdown and Storage Protection Operating Points Key Conclusion: Seasonal shutdown and idle of the units, proper storage maintenance can

xindacool Refrigeration Equipment Origin Factory | Maintenance for Idle Refrigeration Units, Short-Term Shutdown, Long-Term Shutdown and Storage Protection Operating Points Key Conclusion: Seasonal shutdown and idle of the units, proper storage maintenance can prevent rusting, refrigerant migration, and motor moisture absorption during shutdown. Startup can reduce the risk of faults. Industrial projects may encounter seasonal shutdowns, which are divided into short-term shutdowns (a few weeks to 2 months) and long-term storage shutdowns (more than 3 months). There are two different maintenance strategies for these two types. Short-term shutdown: Keep the compressor crankcase heater continuously powered; Cut off the main circuit of the fan to prevent moisture absorption; Conduct remote inspection of the electrical control cabinet once a week; Maintain the room ventilation and dryness. Do not directly cut off all power supply; After power-off, the heater will not work, and a large amount of refrigerant will dissolve the refrigerating oil, making it very likely to cause liquid impact when starting up. For long-term storage shutdowns exceeding 3 months, complete storage steps should be executed: 1) Try to recover the refrigerant to the condenser side; 2) Close the high and low pressure valves; 3) Place desiccant inside the electrical control cabinet, seal the electrical control box to prevent dust; 4) Perform moisture protection on the motor winding, and if conditions permit, periodically energize the winding to dehumidify; 5) Blow clean the external surface of the heat exchanger to remove dust and salt; 6) Drain the circulating water system to empty the pipes to prevent freezing and cracking of the pipeline at low temperatures; 7) Install a dust-proof and rain-proof cover on the equipment outer shell. Before reactivation, do not directly close the circuit breaker to start the machine: First, power on for at least 8-12 hours for preheating the compressor; Check the shock absorbers, the flexibility of the fan rotation; Check the refrigerating oil level; Check the water system; Conduct pressure leak detection to confirm no leakage, and then officially test the machine. Many faults occur during the first startup after shutdown, which is caused by inadequate storage protection. In humid coastal environments, shutdown due to moisture absorption can lead to a decrease in motor insulation. In low-temperature areas, it is essential to drain the water system to prevent freezing and cracking of the heat exchanger. xindacool delivers supporting materials including shutdown and storage protection guidelines, and the same storage logic is also followed for overseas export equipment before shipping. FAQ 1. Can all power be cut off during short-term shutdown? It is not recommended. The compressor heating belt requires power supply. 2. How to handle the refrigerant during long-term shutdown? Try to recover it to the condenser side and close the valves. 3. What is the most important thing for the water system during winter shutdown? It must be emptied to prevent freezing and cracking of the pipelines. 4. How long should the equipment be preheated before restarting? It is recommended to preheat the compressor for more than 8-12 hours. 5. Are motors prone to failure when the equipment is shut down in a humid environment? Moisture intrusion will reduce insulation and cause faults. 6. Can the dust cover completely cover the equipment? It should also ensure ventilation to avoid internal condensation.