Why Is Vibration Damping Not Effectively Reducing Vibration in Rooftop Air Conditioning Units?_Faq

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The vibration reduction products include five categories: spring shock absorbers, rubber shock absorbers, membrane air suspension shock absorbers, air cushion shock absorbers, and steel wire rope shock absorbers, covering five major fields: industrial equ

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Q
Why Is Vibration Damping Not Effectively Reducing Vibration in Rooftop Air Conditioning Units?

Manually check each piece of equipment by touching the lower corners of the unit and the channel steel or floor beneath the vibration isolator to assess the effectiveness of vibration isolation.
If vibration is transmitted directly, indicating a vibration short circuit, the vibration isolator should be adjusted or corrected.
In addition, verify whether vibration isolation measures have been implemented at the pump supports and at pipe penetrations through walls, assess the structural stiffness of the floor, and confirm whether the equipment is installed directly above or adjacent to load-bearing beams.
Q
How to operate the salt spray test of wire rope isolator?

Under neutral salt spray test conditions, Type 304 stainless steel typically achieves a corrosion resistance duration of 48–72 hours, while Type 316 stainless steel generally achieves 72–120 hours.
The salt spray test results are dependent not only on the material grade, but also on manufacturing-related factors, including machining accuracy, surface finish, and surface flatness of the test specimen.
Q
The vibration isolation of the air conditioning unit needs to be considered systematically, so which positions need to install shock absorbers?

Only consider the air conditioning unit and ignore the vibration isolation of the pump and pipe part, which will continue to produce vibration transmission, so the vibration isolation should be comprehensive. Air conditioning units, pipe supports, pipe through wall hard connections, small motors, fans, and water pumps all need to be treated with vibration isolation.
Q
If the customer feels that the roof equipment is noisy, how can it be judged whether it is vibration or noise?

In a noisy room, put your ears close to the wall, open the window, close the window, observe whether the noise in the room changes, and check whether there is any sound leakage in the room in other places such as pipes.
Q
What factors need to be considered for passive vibration isolation of precision instruments?

The stiffness of the supporting structure of the equipment, the overall contour size of the equipment, the interval between the installation and vibration damping, and whether the center of gravity of the equipment is too high.

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