Euroclima ZHK NANO, Инструкция по эксплуатации, Страница: 10 / 19

instruction and operation manual ZHK NANO
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Figure 80: Pressure side installation: remove the black closing plug
6.3 Duct connection
±
airside connection to AHU
Depending on the customer's requirements, EUROCLIMA devices are equipped with various ac-
cessories and options for attaching air duct elements like dampers, flexible connections, frames,
panel flanges, etc.
If no such accessories are included in the scope of delivery, then the airside mounting of compo-
nents of the duct system is made directly to the housing of the AHU. Depending on the device
opening, this can be done directly on the panel flange or directly on the external panel of the de-
vice.
When connecting, make sure that the requirements listed below are followed.
Requirements
-
Ensure proper performance of the AHU by avoiding of excessive pressure drops in the duct. To
minimize the noise, the basic rules of the duct construction and acoustic design shall be ob-
served.
-
A suitable seal (not included in the scope of supply) has to be installed between the device
housing and the component of the duct system.
-
The aero-technical connections must be executed tension and torsion free, i.e. no forces /
loads are allowed to be transmitted to the device housing by means of attached accessories
such as ducts etc. The components on the system side must be fastened and supported sepa-
rately.
- Even if no flexible connection is included in the scope of delivery of the device, an elastic con-
nection must always be installed to prevent structure-borne sound transmission between the
device and the duct system. It is recommended to use an interposed elastic connection of at
least 140 mm in width, which shall be installed unstrained between the duct and the AHU.
- This elastic connection must have a sufficient flexibility and must be installed in a professional
manner in order to avoid transmission of vibrations to the duct system.
- For a proper performance of the AHUs the observance of the basic rules of the duct construc-
tion is necessary. By appropriate planning, dimensioning and execution of the duct system, in-
creased pressure losses and flow noise in the duct are avoided.