ACOUSTIC ENCLOSURES FOR HVAC EQUIPMENT
  • Home
  • Products
    • Domestic Equipment
    • Large heat pumps
    • VRF + VRV Commercial Equipment
    • Bespoke Solutions
  • Online Shop
  • About us
    • Our Sales Partners
  • Blog
  • Contact
  • Language
    • German
    • Italiano
  • Privacy

Silent-Mode News 

​Acoustic enclosure for a Mini VRF system U-5LE2E8 installed on a flat roof near Frankfurt am Main.

21/8/2021

0 Comments

 
Starting position
A "Panasonic Mini VRF system U-5LE2E8" was installed on an intermediate roof between two single-family houses near Frankfurt.

The system has the following dimensions: 980 x 370 x 996 (+ 200 vibration dampers) mm (W x D x H).

At maximum output, the system has an air volume of 4,320 m3 / h, the static pressure of the fan is around 15 to 20 Pascal. When planning the acoustic hoods, we assumed a static pressure of <15 Pascal.

By means of the acoustic hood, the noise level is reduced to the neighborhood, the next window is around 7 meters away from the acoustic hood.

Acoustic hood concept
The air inlet is at the rear (condenser side towards the roof). This enables us to achieve an even air flow to the condenser without causing a pressure loss due to excessive air deflection.

The air outlet is on the front side (fan side), front left. A deflector plate was also installed here at the air outlet, which ensures the air outlet speed of 1.4 meters / sec. continues to insulate.

In this way, we achieve a continuous flow of exhaust air without creating an air short circuit. With an air outlet speed of around 1.4 m/sec. hardly any sound is transmitted via the air outlet.

The basic structure of the acoustic hood is based on aluminum system profiles which have the advantage of being light in weight when mounted on the roof. Around the system as well as in the enclosures roof, aluminum sheets were installed as easy-to-open service doors with a thickness of 1.5 mm with internal 50 mm insulation made of closed-cell, semi-rigid and sound-absorbing polyethylene foam sheets (Stratocell Whisper). Due to its sound-absorbing properties, this foam is one of the most innovative materials for sound control in HVAC systems.

The insulation is UV and water resistant and non-flammable. The isolation does not build up bacteria or fungi. And has strong sound insulation across all frequency bands. In this way we prevent masking effects that often occur when eliminating high-frequency sound bands and which lead to an increase in the tonality of the compressor sound.

The insulation is also light and hardly increases the weight of the service doors.

Sound hood dimensions
The acoustic hood has the following dimensions: 1,700 x 1,300 x 1,100mm (W x H x D) / weight including service doors 127 kg. The acoustic hood is made entirely of aluminum and was subsequently powder-coated in RAL color 7016 to match the color of the roof.

Sound reduction between 18 to 20 dB (A)
0 Comments

    Author

    Our unique Environmental Enclosure systems provide a complete package solution for larger HVAC equipment, where noise and visual constraints are an issue on your project.

    Archives

    June 2023
    April 2023
    March 2023
    February 2023
    August 2022
    June 2022
    April 2022
    March 2022
    December 2021
    August 2021
    June 2021
    May 2021
    December 2020
    November 2020
    October 2020

    Categories

    All

    RSS Feed

Navigate Silent-Mode

Home
 
Products + Services

About us 

Impressum 

​Contact 
​
​Privacy 

©Copyright 2020 / 2021 / 2022
Silent-Mode S.R.L develops, produces and sells the SilentMode acoustic hoods worldwide. All content on this website is subject to copyright. All content, in particular texts, images, logos, product designations and graphics are protected by copyright. All rights, including reproduction, publication, adaptation and translation, require the express written permission of Silent Mode S.R.L. ​After checking, this will only be sent via PEC-mail or registered letter. ​All other forms of communication are not permitted.

German websites
www.silent-mode.com / www.silent-mode.de

English Web
www.silent-mode.net ​

Site Content
SilentMode Acoustic Enclosures Designed, Manufactured and Sold by Silent Mode S.R.L. for heat pumps, air conditioning systems, chillers, all types of chillers, dry coolers, VRF/VRV systems and industrial systems.

Website owner
Silent-Mode S.R.L, Via Italia 39, 20900 Monza (MB),
Fiscal Code / VAT Number: 12082780961 / SDI: T9K4ZHO info@silent-mode.com


  • Home
  • Products
    • Domestic Equipment
    • Large heat pumps
    • VRF + VRV Commercial Equipment
    • Bespoke Solutions
  • Online Shop
  • About us
    • Our Sales Partners
  • Blog
  • Contact
  • Language
    • German
    • Italiano
  • Privacy