TECHNICAL MANU AL CD 30÷520 06.06 M T E 0 11 2 5 6 ... - Chiller

CD 30 ÷ 52014. Troubles and solutionsTroubles Possible reasons SolutionsAir or other gas enter the system Discharge the gas from refrigerantcharging hole, re-vacuuming ifFins are dirty or jammed by someobstaclesnecessaryClean the fins of condenserHigh discharge The condenser wind flow ispressure(Cooling)insufficient or motor failHigh suction pressureRefrigerant over-chargedHigh surrounding TempCheck the condenser motor, repair itif necessaryRefer to the “high suction pressure”part.Discharge the additional refrigerantMeasure the surrounding TempLow dischargepressure(Cooling)Surrounding Temp is lowerRefrigerant leak or insufficientLow suction pressureMeasure the surrounding TempLeak hunting or rechargingRefer to the “low suction pressure”High suctionpressure(Cooling)Refrigerant over-chargedHigh Temp of the inlet chilled-waterDischarge the additionalCheck the heat insulation of waterpipelineInsufficient of water flowMeasure the Temp differencebetween inlet and outlet water, adjustLow suctionLow Temp of inlet chilled-water the water flowpressureRefrigerant leak or insufficient Check installation(Cooling)Scaling in the evaporatorLeak hunting or rechargingDescalingWater flow InsufficientMeasure the Temp differencebetween inlet and outlet water, adjustAir or other gas enter the system the water flowDischarge the gas from refrigerantHigh dischargeScaling in the heat exchanger of charging hole, re-vacuuming ifpressurewatersidenecessary.(Heating)High Temp of outlet cooling water DescalingHigh suction pressureCheck the water TempRefer to “high suction pressure” part37