1, adjust the balance of the four feet at the bottom of the freezer. The freezer should be placed in a place with a flat and hard floor. Put the bottom four feet on a flat surface to make it balanced. Many coolers have 4 feet adjustment knob at the bottom, which can be adjusted by fixing the maximum time of noise. If there is no adjustable knob device, you can place cushion pads, etc. under the feet of the cooler to balance and minimize the noise.
2、Pipe and cabinet are firmly reinforced. Check whether the connection reinforcement part between the adjustment outer pipeline and the cabinet is loose to avoid resonance when the compressor is working. Therefore, spring washers must be added to ensure that the outer piping is firmly and the bolts are not loosened.
3, the compressor base must be firmly fixed. Press the compressor firmly by hand, the noise is greatly reduced, and the noise of raising the hand is increased. Generally speaking, the damping pad used to fix the compressor base is not uniform or the bolt is loose, the compressor base is not firm, it is necessary to adjust and tighten the connecting part of the bolt, as well as to replace the gasket that has lost its elasticity.
4, accessories must be installed firmly. Freezer and freezer must be firmly installed in a fixed position and sink so that users can directly use accessories such as refrigerator making, layering network, drawers, etc. Do not place debris on the top of the freezer to prevent resonance causing noise.
5,Determine whether the compressor is faulty. Pressing the top of the compressor by hand will not reduce the noise. Generally speaking, if the compressor internal piston and cylinder gap is too large and noise is generated, the compressor must be replaced. Refrigerator does not open the door, about 3 meters away, clearly hear the hot sound of the pan and interval "pick" sound, is the refrigeration line failure need to ask experts to repair.
6, With rubber blocks to suppress the vibration of the tube. Refrigerator use a lot of noise, so the external contour of the bike cut into a circle with a diameter of 30mm, cut a circular hole with a diameter of 5mm from the middle, then cut from the outside to the center, so that the rubber block paste into the tube. When the compressor starts, touch the tube with your hand will produce a sense of shaking tube can be clamped on a few such rubber blocks, a freezer needs 10-20, the noise will soon be reduced. Because the rubber block can inhibit the tube vibration caused by "resonance".
Put the four legs of the freezer properly. Will be placed on the 3-6 cm high liner, adjust the square balance, increase the convection space of the air at the bottom of the box. In this way, the noise of the compressor and other noise below can come out from the bottom of the cabinet, reducing the noise generated by the sides and top of the cooler.
8, The back and the wall into a certain angle of inclination. Tilt the back of the cooler and the wall at a certain angle, tilt the back and the wall at l-3 degrees, one side of the cooler has a large opening, one side has a small opening, forming a horn shape. The large side makes a lot of noise and must face the object. The small side should have little noise and face the field of human activity.
9, Insert sound-absorbing cardboard along the wall nail. Paste sound-absorbing materials such as glass fiber wool onto the cardboard, and then paste the cardboard onto the wall behind the cooler (compressor side), which is 10 cm-20 cm larger than the back of the cooler.