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Supermarket refrigerated showcase maintenance principles and procedures
author: supermarket refrigerated showcase category: commercial refrigeration Views: 519Time: 2016-08-22
supermarket refrigerated showcase maintenance principles and procedures
supermarket refrigerated showcase maintenance principles first outside and then inside, first electricity and then cold, first conditions, devices, first easy then difficult first, first outside then first excluded
(1) For the influence of external factors, check the substantial internal failures of the supermarket refrigerated showcase.
(2) Electricity first, then cooling, first remove the electrical faults, make the compressor run normally, and then consider refrigeration faults. Because the work of the refrigeration system is controlled by the electrical system.
(3) If the compressor does not run after the first condition, you should first check whether the operating voltage required for the operation is available, whether the starter and the thermostat have problems, and finally consider the compressor itself. When overhauling the non-stop fault, first check whether the temperature required by the thermostat to cut off is reached, that is, whether the refrigeration capacity of the supermarket refrigerated showcase is normal, and secondly, check whether the inner bladder of the supermarket refrigerated showcase is detached, that is, whether the temperature sensor can correctly sense the temperature. Finally, check whether the thermostat is abnormal.
(4) Check for easy, common, and single faults first, easy first, then difficult, and first check the vulnerable and easy-to-disassemble parts, and then consider composite, low-failure, and difficult-to-disassemble parts.
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