Bo Sheng Jiangsu Chiller refrigeration equipment plating chiller

Mistakes screw chiller operation Misunderstanding screw chiller operation prone: Before power is not closed shell and tube condenser inlet valve, this will result in the phenomenon of channeling water. Part of the cooling backwater flow away from the shell and tube condenser, thus reducing the cooling water flow shell and tube condenser, causing the unit condensing pressure rising, the host running current is increased, resulting in capacity loss, but also a serious screw chillers stop working. In this way, the costs of electricity, refrigeration efficiency and reduce equipment failure rate increases. Starting from the wrong operation, the host of the cooling water outlet temperature and condensing pressure. The unit will alarm, the operator will cause wrong judgment, that the cooling water is not enough, so the condenser cooling water pump inlet valve and outlet valve to open big, some cooling tower fan will be turned on, this will cause the cooling tower fan, and pump power consumption increases, the cost will increase a lot. Some operators even open the cooling water pump. To open the cooling water pump can reduce the condensing pressure and coolant temperature, pump operation of such electricity is wasted. Unit cooling water system the correct methods of operation are: a, before starting the closed shell and tube condenser inlet valve to prevent channeling water unit. b, open the valve and out of shell and tube condenser cooling water pump on, adjust the condenser inlet and outlet pressure. c, if the shell and tube condenser swing out of the water gauge pointer is too large, then there is air in the cooling water system, you need to vent gas within the unit until normal only after pressure gauge. Water-cooled (box) 1. nominal cooling capacity chiller reference conditions: Chilled water inlet temperature 12 ℃, chilled water outlet temperature 7 ℃, cooling water inlet temperature of 30 ℃, the water temperature of 35 ℃ 2. unit safe operating range : Chilled water inlet temperature 5-20 ℃ 3. The machine adopts imported temperature controller or PLC programmable controller 4. Power standard: 3P-380V-50HZ, allowable voltage fluctuation ± 10%, ± 2 allows phase voltage difference % 5. Specifications and dimensions for improvement and are subject to change without notice. Small water-cooled chiller, cooling capacity, using the world famous imported compressor, low temperature performance, reliable and durable. Some knowledge 1, the protector screw chillers of the set value Chiller troubleshooting factories modulated set up, users do not tamper with. 2, non-emergency situations can not be turned off by turning off the main power supply units; chillers used in long-term suspension, turn the unit, then turn off the main power supply, water will be exhausted within the system. 3, air-cooled chiller power should see the fan rotation is correct, such as forward can be switched on, then the power supply wiring reversed inverted phase sequence to be replaced after the start. 4, unit fault alarm shutdown occurs, press the stop button on the unit, and then check the cause of the malfunction, the fault is not excluded the former shall not be forcibly switched on. 5, clean and well-ventilated room, in addition to regular cleaning of the condenser masonry work to ensure the normal and stable chiller. 6, during normal operation of the chiller, to give the machine to cool down.