Annual Maintenance Plan for Cold Storage | Monthly, Quarterly, and Annual Maintenance Projects, Risk Pre management
Maintenance is not about repairing after it breaks down. Regular inspections should be conducted to detect blockages, leaks of fluorine, deterioration of oil quality, and electrical aging in advance, in order to avoid sudden damage to the compressor and complete shutdown of the entire warehouse.
Monthly inspection: Check whether the operating current, high and low voltage, exhaust temperature, oil level, and defrosting are normal, and inspect door seals, door frame heating, and fan abnormal noise.
Quarterly maintenance: blow clean the condenser fins, tighten the electrical wiring terminals, test high and low voltage, oil pressure differential protection, and check the temperature difference of the drying filter.
Annual overhaul and maintenance: nitrogen pressure leak detection, sampling and testing of refrigeration oil, replacement of drying filter, calibration of expansion valve superheat, cleaning of water-cooled condenser scale, inspection of shaft seal.
Special maintenance before off-season shutdown: check the refrigeration oil, seal it properly, heat and power on the crankcase, clean the evaporator frost and ice, close the water circuit and drain the accumulated water.
Xitelide provides standardized maintenance ledgers to supporting customers, recording operating parameters each time for easy horizontal comparison and early detection of slow deterioration faults.
Many cold storage facilities only do emergency repairs without regular maintenance. The condenser is not washed for years, and the oil is not replaced for a long time. The compressor is likely to be scrapped in 3-5 years, and the maintenance cost is much higher than maintenance.
The maintenance cycle of high humidity aquatic and dust workshops has been halved, and the frequency of condenser and filter inspections has been increased.
Foreign trade overseas maintenance, spare parts inventory list and maintenance plan binding, advance reserve vulnerable parts such as shaft seals, capacitors, filters, contactors, etc.
Key comparison of maintenance records: Under the same operating conditions, high pressure, exhaust temperature, and operating proportion have been increasing year by year, indicating system degradation and early intervention.
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FAQ
What are the key points of monthly inspection? Operating pressure, temperature, oil level, defrosting, and storage door.
2. Must do quarterly maintenance projects? Blow the condenser, tighten the wiring, and test the protection.
What does annual maintenance include? Leak detection, oil sample analysis, filter replacement, and cleaning of scale.
4. What is the maintenance cycle for the dust aquaculture workshop? Shorten by half.
5. What are the key maintenance points before shutdown during the off-season? Oil testing, emptying the water circuit, and maintaining crankcase heating.
How to determine if the system is deteriorating year by year? Under the same load, high pressure and exhaust temperature continue to rise.
What is the maximum value of maintenance? Avoid sudden shutdowns and prevent food loss.
