instruct: Keep a cooling water tank (bucket) above 30 liters. First connect the radiator and submersible pump with silicone tubing. Place the submersible pump in the cooling bucket, connect power to the pump, and wait for the water to circulate. (Note: The water temperature of the machine will continue to rise for a long time. Please replace the cold water clearly. The temperature of the circulating water should not drop suddenly. If the water temperature exceeds 50 degrees, the power supply of the heater should be cut off in time, and then the circulating water should be replaced). (Note: It is recommended to slowly adjust the thermostat to a reddish heat pipe. If the temperature is too high, the bending material will be damaged and the service life of the bending machine will be affected). Specification: Input voltage: AC 220V Heating head peak: ZW-300 420℃, others 250℃. Thickness of heating elbow: 1mm-6mm The width of the heating interface: 30-240cm Power: 30cm/300W, 60cm/800W, 125cm/1500W Size: 30CM/60CM/125CM Gross weight: 30cm/2.8kg, 60cm/3.05kg, 125cm/4.3kg Recommended temperatures for some common materials: Acrylic: 210℃ Fluorite: 195℃ PVC sheet. 155℃ ABS: 190℃ PET: 160°C. packing list: 1 X Acrylic PVC Bender Heater 1 X Water Pump 2 X Silicone Tubes 1 X Temperature Controller 1 X Water Thermometer Safety Precautions: 1. Heating the product will generate high temperature. The heating element should avoid contact with human skin. 2. Please pay attention to the use environment and keep away from flammable and explosive materials. 3. If you don't use it for a long time, please turn it off in time.