2, the general small assembly cold storage floor using insulation board, the use of cold storage should prevent the ground there is a lot of ice and water, if there is ice, clean up when you can not use hard objects to knock to prevent damage to the ground. The use of the process should pay attention to hard objects on the cold storage body and the outer body of the collision and scratching, because hard objects can be caused by depression and corrosion, serious will cause the local thermal insulation performance is reduced.
3, cold storage sealing parts maintenance. As the assembly cold storage is made of a number of insulation board spliced together, so there are some gaps between the board, construction of these gaps will be sealed with sealant to prevent air and moisture into. So in the use of some of the sealing failure parts of the timely repair, and resolutely put an end to the phenomenon of cold escape.
4, the initial operation of the unit should always observe the compressor oil level, as well as the return oil and oil cleanliness, found that the oil is dirty or oil level to be resolved in a timely manner, so as not to cause poor lubrication.
5, to often clean the air cooler, so that it maintains a good state of heat transfer. Check whether the motor, fan rotation is flexible, if the phenomenon of blocking should be filled with lubricating oil; such as abnormal friction sound should be replaced with the same model specifications of the bearing clean fan blades, coils, clean up the dirt on the water tray in a timely manner. For cold air unit should always check the condenser, scale problems should be removed in time to remove the scale.
6, for the evaporator, often check the defrost situation. Defrost whether timely and effective will affect the cooling effect, resulting in refrigeration system back to liquid.
7, often observe the compressor running status; check its exhaust temperature, in the seasonal operation, pay special attention to the operating status of the system, timely adjustment of the itosu liquid supply and condensing temperature.
8, listen carefully to the compressor, condenser fan running sound, found abnormalities in a timely manner, while checking the compressor, exhaust pipe and foot vibration. Check whether the compressor has an abnormal odor.
9, the initial system of poor internal cleanliness, after 30 days of operation to replace a refrigeration oil, for cleaner systems, after running for half a year and then a complete replacement (depending on the actual situation).
10, refrigeration mechanic annual testing and maintenance of the compressor. Check the compressor oil level, oil color. If the oil level is lower than the 1/2 position of the observation mirror, should identify the causes of oil leakage and troubleshooting before filling the lubricant; if the oil has been discolored should be completely replaced with lubricant. Check whether there is air in the refrigeration system, if so, the air should be discharged.
11, often check and confirm whether the voltage of the power supply meets the requirements, the voltage should be 380V ± 10% (three-phase four-wire), and check whether the protection function of the power supply switch is normal and effective. When the cold storage equipment is not used for a long time, the total power supply of the freshness cold storage should be cut off, and make sure that the cold storage equipment is not affected by moisture, electricity leakage, and not polluted by other substances such as ash.
12, regularly check the refrigeration unit of the connecting tube, valve parts on the connecting tube is firm, whether there is refrigerant leakage (general leakage will appear in the place of oil).
13, regularly check the refrigeration unit of the connecting tube, valve parts on the connecting tube is firm, whether there is refrigerant leakage (general leakage will appear in the place of oil stains). Leak detection method: use a sponge or soft cloth dipped in detergent, rub the foam, and then evenly coated in the place where the leakage is to be detected, and observe for a few minutes. Observe for a few minutes. If there is a leak, bubbles will appear. Mark the leakage place, and then do the fastening or gas welding treatment (by professional refrigeration staff for overhaul operation).
14, control line operation: control line all using shielded wire laying along the refrigerant pipe bundle, all refrigerant pipe insulation pipe must be wrapped with bandage, over the floor with a steel casing; indoor controller part of the concealed through the pipe, prohibit the power line and the control line bundled together again to prevent interference.
15, lifting points can be based on the number of fixed points on the top of the library, each hanger crossbar are installed a pair of inverted chain, so that is conducive to the fixed when looking for the right adjustment. When lifting, there should be a person to direct, drag the chain personnel shall not stand in the row of pipes directly below. Each lifting point at the same time, to maintain a consistent height, smooth. After lifting in place and leveling, weld and fix the lifting point on the top of the warehouse. This method is just to prepare some more long inverted chain.