TROX A00000071256 CAK Circular Silencer Installation Guide

TROX A00000071256 CAK Circular Silencer

Product Information

Specifications

• Product Name: Circular silencer CAK
• Manufacturer: TROX GmbH
• Model: CAK
• Application: Suitable for ventilation systems with chemically contaminated extract air

Product Usage Instructions

Correct Use of Circular Silencers
Circular silencers are designed to reduce noise in circular ducts of ventilation and air conditioning systems within enclosed spaces. They are specifically used for:

• Reducing air-regenerated noise of air terminal units
• Reducing noise from mechanical self-powered controllers

Prohibited Uses
Do not use the circular silencer in the following situations:

• In extract air systems in commercial kitchens unless the air has been cleaned with high-efficiency aerosol separators as per VDI 2052 standards.

Modifications and Replacement Parts
Do not modify the unit or use replacement parts that have not been approved by TROX. This can compromise the performance and safety of the silencer.

FAQ

• What should I do if the product is damaged during transport?
  If the product is damaged during transport, immediately contact the shipping company and your supplier to report the issue.

• How should I store the circular silencer?
  Store the product in its original packaging to protect it from weather effects, humidity, dust, and contaminants.

Product Overview

1. Case of the silencer
2. Spigot

Safety Instruction

Correct use

• Circular silencers are used to reduce noise in the circular ducts of ventilation and air conditioning sys-tems within closed rooms.
• For the reduction of air-regenerated noise of air terminal units and mechanical self-powered controllers, etc.
• Do not use circular silencers in extract air systems in commercial kitchens unless the extract air has been cleaned as much as possible with high-efficiency aerosol separators; see VDI 2052.
• The CAK type is particularly suitable for ventilation systems with chemically contaminated extract air, e.g., from fume cupboards.

Incorrect use

WARNING!

• The danger of injury or risk of damage to property due to incorrect use
• Incorrect use of the circular silencer can lead to dangerous situations.
• Never use the circular silencer:
  • outdoors without sufficient protection against the effects of weather
  • in-process air systems

Modifying the unit or using replacement parts that have not been approved by TROX is not permitted.

Staff

• Qualification
  The work described in this manual has to be carried out by individuals with the qualifications, training, knowledge, and experience described below:

• Specialized personnel
  Specialized personnel are personnel, who due to their specialized training, skills, and experience, as well as knowledge of the applicable standards and regulations, are capable of executing the tasks assigned to them, and of recognizing possible hazards and avoiding them on their own.

• Personal protective equipment
  Personal protective equipment is equipment that protects the user against health or safety risks at work.

Personal protective equipment must be worn for various types of work; the protective equipment required is listed in this manual together with the description of each type of work.

Description of personal protective equipment

Industrial safety helmet

Industrial safety helmets protect the head from falling objects, suspended loads, and the effects of striking the head against stationary objects.

Protective gloves

Protective gloves protect hands from friction, abrasions, punctures, deep cuts, and direct contact with hot surfaces.

Safety shoes

Safety shoes protect the feet against crushing, falling parts, and from slipping on slippery ground.

Repair and replacement parts
Only qualified personnel must repair the products, and they have to use genuine replacement parts.

Transport, storage, and packaging

Delivery check
Check delivered items immediately after arrival for transport damage and completeness. In case of any damage or an incomplete shipment, contact the shipping company and your supplier immediately.

Transport on site

Please note:

• Be careful when unloading or moving the product, and pay attention to the symbols and information on the packaging.
• If possible, take the product in its transport packaging up to the installation location.
• Use only lifting and transport gear designed for the required load.
• Always secure the load against tipping and falling.
• Do not move bulky items just by yourself. Get help to prevent injuries and damage.

Storage

Please note:

• Store the product only in its original packaging
• Protect the product from the effects of weather
• Protect the product from humidity, dust, and contamination
• Storage temperature: 0 °C to 100 °C.
• Relative humidity: 80 % max., no condensation

Packaging
Properly dispose of packaging material.

Installation

General installation information

Personnel:

• Specialized personnel

Protective equipment:

• Protective gloves
• Industrial safety helmet
• Safety shoes

CAUTION!

• The danger of injury from sharp edges, sharp corners, and thin plastic parts!
• Sharp edges and sharp corners may cause cuts or grazes.
  • Be careful when carrying out any work.
  • Wear protective gloves, safety shoes, and a hard hat.

Please note:

• Horizontal or vertical installation orientation.
• Duct connection on both sides.
• Installation in ducts outside closed rooms requires sufficient protection against the effects of weather.
• Length (L) refers to the airflow direction.
• Installation material is not part of the supply package unless stated otherwise.
• The airflow direction is freely selectable.
• Torsion-free installation.

Installation information for circular silencer
General installation information

• When designing and constructing ventilation and air conditioning systems, take into account the requirements of VDI6022, in particular:
  • Hygienic, clean installation of all components and their air distribution surfaces
  • Inspection and cleaning options by planning inspection/cleaning openings in the ducting system
  • Avoidance of leaks
• Affix the circular silencer proficiently and only to load-bearing components.
• Load suspension systems only with the weight of the circular silencer. Adjacent components and connecting ducts must be supported separately.
• Only use approved and sufficiently dimensioned suspensions for fixing. Secure screw connections against self-loosening, e.g., by locking them. Fixing material is not included in the supply package.

1. Duct

2. Circular silencers

3. Pipe clamp

4. Suspension, e.g. with threaded rod

5. Fixing pipe clamps

6. Fixing to suspension element

• When installing the circular silencer, choose a load-bearing structure that will support the entire weight of the circular silencer construction.
• The weight of the circular silencer must not be supported by the spigots or flanges alone.
• Tension-free assembly
• Structure-borne sound transmission must be avoided by taking suitable measures.
• Installation in ducts outside closed rooms requires sufficient protection against the effects of weather
• Take standard DIN EN 12236 into consideration (suspensions and supports for air ducts)

Assembly to control components
Circular silencers without splitters can be used for the reduction of air- regenerated noise of air terminal units and mechanical self-powered controllers. Installation can be carried out without a minimum distance to the control component.

Connecting the air duct
When connecting the ducting, the customer must ensure that the connection points are installed as air-tight as possible to avoid negative influ-ences from leakages such as air volume deviations, power consumption, etc. Unless otherwise stated, the connecting material is not included in the supply package.

Before connecting the ducting:

• Check the inside of the unit for damage and loose parts.
• Remove any contamination from the ducting.

Leakage classes
To be able to achieve the required tightness of the duct system, suitable sound attenuators, and duct components must be selected. In addition, the following should be observed:

• Proper and expert assembly
• Provide seals
• Establish the cable fastening (suspension/support)

Circular duct – plastic

Plastic spigot

• Installation of ducting by DIN 8077.
• With clamp connectors.

Plastic spigot

• Installation of ducting by DIN 8077.
• By plastic welding.

Technical data

General data

Item

|

Value

---|---
Nominal sizes| 125 – 400 mm
Operating pressure| 1000 Pa max.
Airflow velocity| ≤ 20 m/s
Air temperature| 0 °C to 100 °C
---|---
Relative humidity| ≤ 80%, no condensation
Casing leakage according to EN 15727| Class D
Materials of the circular silencer| PPs (flame-retardant polypropylene)

Dimensions and weights CAK

Dimensions

[mm]
125| 125| 225
160| 160| 250
200| 200| 280
250| 250| 355
315| 315| 415
400| 400| 500

Lengths

[mm]
500| 595| 495
1000| 1095| 995
1500| 1595| 1495

Weights

m [kg]
125| 2.2| 4.1| 5.9
160| 2.6| 4.7| 6.8
200| 3.2| 5.8| 8.5
250| 4.3| 7.6| 10.9
315| 4.6| 8.6| 12.5
400| 5.2| 9.3| 13.4

CAK/…/VF2

Dimensions

Lengths

[mm]
500| 595| 495
1000| 1095| 995
1500| 1595| 1495

Weights

m [kg]
125| 2.5| 4.4| 6.2
160| 3.0| 5.1| 7.2
200| 3.6| 6.2| 8.9
250| 4.9| 8.2| 11.5
nominal size| 500| 1000| 1500
---|---|---|---
m [kg]
315| 5.3| 9.3| 13.7
400| 6.8| 10.9| 15.0

Commissioning

Commissioning and operation

Personnel:

• Specialized personnel
• Before you start commissioning:
  • Check the proper installation of the circular silencers.
  • Ensure that all sound attenuators are clean and free from residues and foreign matter.

Commissioning

Code of good practice for commissioning
Commissioning is governed by the standard “DIN EN 12599 Testing and measuring procedures for the transfer of installed ventilation and air conditioning systems”, and, if applicable, contractually agreed services between HVAC contractors, system owners, and installation engineers. The standard describes the essential commissioning steps of the completeness check, func-tion check, function measurement as well as report generation and handover.

Operation

• Once commissioning has been completed, the circular silencer will operate in a self-powered manner and require no intervention from the system owner.
• Depending on the area of application of the circular silencer, test specifications, and intervals may have to be observed.

Maintenance

System owner’s responsibility

WARNING!
Only authorized specialist personnel are allowed to perform the described mainte-nance measures.

• The system owner is responsible for maintenance. The system owner is responsible for creating a maintenance plan, for defining the maintenance goals, and for the functional reliability of the equip-ment.
• The legal regulations must be observed during maintenance, e.g. the system owner is responsible for hygienic operation by VDI 6022.

Maintenance
The circular silencers are low-maintenance in terms of wear, but they must be included in the regular cleaning of the ventilation system. Regular care and maintenance ensure the long service life of the circular silencer.

Inspection measures

1. Remove contamination that affects the func-tion of the circular silencer.
2. Check all screws for firm seating and retighten them, if necessary.
3. Document the maintenance work.

Repair
Repair work is only allowed to be carried out by specialist personnel or by the manufacturer. Only genuine replacement parts must be used.

Disposal

ENVIRONMENT!
Risk of harm to the environment due to incor-rect disposal of goods and packaging!

Incorrect disposal can harm the environment.

• Be sure to comply with the relevant national guidelines and regulations.
• If you are not sure how to dispose of anything in an environmentally friendly manner, contact your local authorities or a specialist disposal company.
• Note: The sound attenuator has to be disassembled for disposal.
• If no take-back (disposal) agreement with TROX GmbH is in place, we recommend disposing of the various materials as described below:

EWC European Waste Catalogue

TROX GmbH

• Heinrich-Trox-Platz 47504 Neukirchen-Vluyn, Germany Germany
• +49 (0) 2845 202-0
• +49 (0) 2845 202-265
• E-mail: trox@trox.de
• www.troxtechnik.com.

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