Have a sound-sensitive project like a music hall, museum, university, library, or office?
In addition to Nortek Air Solutions’ Coplanar Silencer®, Nortek also offers a Passive Noise Control (PNC) cone for added sound reduction.
Nortek Passive Noise Control (PNC) Cone
- Nortek Air Solutions’ proprietary PNC cone is installed at the inlet of each fan cube to absorb a portion of the fan inlet sound.
- It can help achieve up to 12dB in sound reduction.
- In the 63Hz, 125Hz, and 250Hz octave bands, it can achieve up to 5dB in sound reduction.
Create a Better Environment
Because the human ear can perceive a change in decibels of 3dB or more, this technology can make an appreciable difference for building occupants’ comfort.
Factory-Installed or Install in Field-Assembled Knockdown Units
- PNC is available for 16”, 18”, 20”, and 22” fans and comes factory-installed.
- For knockdown units that will be field-assembled or retrofit projects, PNC is easy to install: each cone can simply be bolted to the fan and then sealed with caulk to prevent air bypass.
Compatible with Backdraft Damper – Improve Acoustical Performance
PNC is also compatible with Nortek Air Solutions’ backdraft damper, which not only helps idled fans achieve near-zero system impact but can also improve acoustical performance.
PNC Key Benefits
View Case Study: Kleinhans Music Hall
Contact DMR to learn more about Nortek solutions for passive noise control for added sound attenuation.