A common failure of a stacked explosion-proof screw refrigeration unit.

Stacked explosion-proof screw refrigeration unit troubleshooting method: the refrigerant is used for too long, or does not have regular maintenance, it is inevitable that some unexpected failures will occur.
Today, the Refrigeration Mini-Shares Some of the more common troubleshooting methods.
each water-cooled freezer, not only before the factory to do a comprehensive performance test, but also to the unit with a variety of safety protection devices, such as phase protection, low water level protection, water flow switch protection, water pump overload protection, compressor overload protection, high and low voltage protection, so as to avoid the unit due to failure caused secondary damage.
when the unit fails, the corresponding protective device will issue a reminder and stop the freezer from running.
one of the common failures: inverse phase.
when the water-cooled freezer has this fault, it will be timely phase protection.
the reason for the inversion, there are pumps, compressor reversal, then we will be in the power line any two phases can be switched, if it is missing phase, we only use the universal meter to measure whether the three-phase power supply is normal, to see if the power cord is broken, the common fault two: cold media insufficient light.
water-cooled freezer water temperature at more than 5 degrees C, low pressure table pressure display is less than 2kg /cm2, then the identification of refrigerant deficiency, this time, we must carry out leakage inspection work, if there is a leak point should be filled, and then replace the drying filter to re-vacuum, and to the refrigeration machine filled with appropriate refrigerant.
common failure three: poor heat dissipation causes slow or uncooled cooling.
if the water-cooled freezer condenser cooling is poor, then the compressor efficiency is low, the operating current will be increased, and the high pressure rose to 20kg/cm2, at this time the compressor by high pressure protection jump-out stop operation, at this time to check whether the cooling water tower circulation water is normal, cooling water temperature is too high, and cooling water valve is completely open, condenser is dirty, etc.
common failure four: whether the high and low pressure are normal.
the front of the two and three, a detailed analysis of the compressor in the high pressure, or low pressure abnormal pressure display, then when the compressor running high and low pressure difference is very little or equal when the failure, then we have to check the compressor itself valve piece swasheax or break, and immediately stop the operation to inform the supplier to deal with.
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