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Commissioning for sound and vibration control is not as complicated as most providers might think. A basic understanding and a little common sense can go a long way. Typical items to consider during your commissioning review include:
- Do the plans have installation details incorporating the proper vibration isolation method
- Does the building have a lightweight structure, specifically a lightweight roof structure? If so, have isolation requirements been addressed for all rooftop mechanical equipment?
- Has the inertia mass, i.e., housekeeping pads, of normal weight concrete been shown beneath the pumps/air handling units?
During your installation inspections, be on the lookout for the items that were identified during your design phase review. Information is not always conveyed to the personnel who are installing the equipment. Also ensure the following:
- Piping is properly aligned and anchorage points are adequate to take the load of the pipe under pressure conditions.
- All mechanical equipment is isolated as per the manufacturer.
- Spacing between flexible connector is in accordance of the manufacturer recommendations.
- All ductwork is properly isolated from walls and lights (no physical contact).
- All mechanical equipment is installed using proper vibration isolators and flexible connections.
- All duct connections are properly sealed. and connected with flexible connectors (Air leaks can generate noise).
- All penetrations of partitions are properly sealed.
- There are no improperly adjusted isolators and the located calculations of the isolators is accurate,
- There are no improperly adjusted duct connectors.
- All shipping blocks have been removed.
- There are no flanking paths of transmission.
- There is no excessive dirt on blower wheels.
- There is no misalignment of piping, couplings, sheaves, and other drive components.
- Flexible conduits have been used between rigid electrical conduit and reciprocating or rotating equipment.
- Fan discharge and inlet fittings are correctly installed and fan orientations are correct. (This not only reduces system effect but also reduces sound levels).
Easyflex services are designed to meet the contractor needs – no job is too large or too small. Our experienced professionals can assist you in installation methods best suited for the site conditions, provide technical submittals for the consultant, design calculations and engineer an effective solution for your project installation. Site conditions do not always allow for easy adaptation of isolation or seismic controls. Easyflex specializes in providing a solution tailored to the constraints of the allowable space. Some common example of site specific constraints would be:
- Not enough height in the room to allow installation of high deflection isolation.
- Piping is already routed to equipment, preventing an elevation change to adapt vibration or seismic controls.
- Adapting new equipment to existing structural supports.
