The compressor replacement method of the
water-cooled chiller is as follows: Cut off the power supply: Before replacing the compressor of the water-cooled chiller, be sure to cut off the power supply of the unit. Otherwise there is a risk of electric shock. When removing the power supply of the compressor, it is necessary to mark each wire and the corresponding terminal, so as to restore the wiring after maintenance.
Refrigerant discharge: Open the high and low pressure side valves of the industrial chiller with the inner hexagon, pay attention to the ventilation of the working environment, so as to prevent the operator from suffocating; If possible, the refrigerant of the
water-cooled chiller should be recycled instead of directly discharged to maintain the environment.
Remove the suction and exhaust pipes: Before removing the suction and exhaust pipes, make sure that the refrigerant of the
water-cooled chiller in the system has been exhausted. Use gas welding to heat the welding port, after the welding port solder melts, pull out the suction and exhaust pipes. During the whole welding process, be sure to fill with nitrogen, the nitrogen pressure is 0.5±0.1kgf/cm2, to prevent the copper tube of the industrial chiller from oxidizing and producing oxide skin, and also pay attention to whether there are impurities and foreign matter on the inner wall of the copper tube, if so, promptly eliminate. When welding, pay attention to control the flame direction and avoid casing and sponge. wires, etc.
