Exhaust Fan Silencer Installation

Change to an inline fan running parallel to the roof and place a rectangular silencer on the outdoor side.

Exhaust fan silencer installation.

Noise levels can be high and contain low frequency content. Exhaust silencers have mounting flanges to suit standard fan bolt patterns for easy installation. Installation dos and donts 3 dr ref qxd 6 11 2015 3 58 pm page 18. An axial fan silencer is available to fit any fan size with construction materials suitable towards a system type a fan size and a higher velocity of a fan type.

Two silencers can be used together in installations where noise reduction is critical. Direct the duct opening away from noise sensitive areas. Fantech ld silencers are typically used for kitchen exhaust systems. Discharge silencers for industrial fans are often required to accommodate very high volumetric flow rates cfm at high temperatures and velocities.

Flexible seals between the silencer and fan can be eliminated by mounting the silencer on support legs and vibration isolation pads so that the. The available types of axial fan silencers include media filled with film liner dissipative media filled and no media designs. Duct clampsthe joint between the inline fan and the adjacent filter or duct silencer. Replace windband of fan with silencer.

An excellent way to reduce the amount of noise is to use a fan speed controller. Where vertical applications are required aerodynamically enhanced acoustic plenums can be provided.