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

CD 30 ÷ 520 Please turn on the main power 12 hours before staring to preheat the compressor. If thecompressor is not preheated enough, it maybe damaged. Adjust carefully the water flow switch on water system or close valve at inlet to ensure thewater flow volume is 90% of the rating. Check if any component of the unit is loose and the unit has no distortion and rupture. Before starting, please check carefully if the power voltage and wiring are right. Check ifthe power sequence is correct. If not, it needs to exchange. Check if the connecting part istight and fasten once again. Connect the water flow switch correctly to the control cycle. Put the Temp. sensor to the right position, and then fasten it well to prevent from falling off.• Testing Turn on the unit by wire controller. If there is ERROR Code displayed, please firsteliminate the malfunction; confirm there is no malfunction before restarting. After 30 minutes, when the temp of water is stable, adjust the water flow volume tonominal value to ensure the unit running normally. When the unit is working, check the Running Current, Running Pressure, Water Pressure,Water flow Volume, Water Temp. Difference between inlet and outlet water, What’s more,adjust the water flow volume according to the actual conditions to ensure the unit runningnormally. Optimizing the setting parameters according to the local weather and concerningoperation references. After the unit stops, start the unit 10 minutes later to prevent the unit from startingfrequently. Check if the control and protection devices are normal according to thefollowing table:31