3) Press the electric heating button, it lights, electric heater after confirmation, press the stop button refrigeration heating equipment, heating light off; 4) Press the button to start the pump, the pump starts, lights air conditioning and refrigeration equipment, according to the pump stop button, pump stops, light off; 5) Press the start button pump, oil pump lights, pump operation and rotation to the right, the oil differential adjustment in 0.4 ~ 0.6MPa. Snow Dragon refrigeration service technicians have the most professional screw chillers, industrial chillers, industrial refrigeration units, industrial chillers, small chillers, small freezer, refrigeration equipment, chillers, low temperature chillers, chillers, industrial chillers refrigeration equipment, heat pump water heater, Yu water loop heat pump central air conditioning maintenance of refrigeration equipment, accessories, maintenance chillers, industrial refrigeration equipment repair and maintenance of industrial chillers. While undertaking chiller, tank air conditioning, cooling towers, constant temperature and humidity, cold, compressed air freeze-drying machine and other refrigeration equipment installation and maintenance services. Accumulated years of experience, professional skills, quality service and reasonable prices for our customers to provide professional products and services. Air conditioning and refrigeration equipment, refrigeration equipment, refrigeration provided by Snow Dragon Snow Dragon City Refrigeration Electrical and Mechanical Equipment Engineering Co., Ltd .. Dongguan City-long Refrigeration Electrical Equipment Engineering Co., Ltd. (www.dgxuelong.com) strong, credible, in Dongguan, Guangdong heat exchangers, refrigeration and air conditioning equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead XUELONG refrigeration and you hand into the brilliant, for a better future!