Trox Technik UL series, KUL series, WG-KUL series, ARK series, ARK-1 series Installation Manual

Product overview

Fig. 1: Schematic illustration

①

Front frame, UL with L-sections, KUL with U­sections

②

Blades (closed)

③

Centre mullion (B ≥ 1000 mm)

④

Blades (open)

⑤

Blade restrictor

⑥

Seal

⑦

WG border

⑧

WG regular blades

⑨

WG bottom blade

⑩

Crimped wire mesh, with or without insect
screen

⑪

Casing

⑫

Blades

⑬

Seal

⑭

Linkage

⑮

Travel stop (angle section)

⑯

Adjustable blade restrictor

Installation manual

GB/en

Non-return dampers

T

ypes UL, KUL, WG-KUL, ARK, ARK-1

TROX GmbH
Heinrich-T

rox-Platz
47504 Neukirchen-Vluyn
Germany
Phone: [phone]
Fax: [phone]
E-mail: [email protected]
http://www.troxtechnik.com

A00000053072, 10/2018, © TROX GmbH 2015

Non-return dampers Types UL, KUL, WG-KUL, ARK, ARK-1

1

Important notes

Information on the installation manual

This manual enables operating or service personnel
to correctly install the product described below and
to use it safely and ef

ficiently.

It is essential that these individuals read and fully
understand this manual before starting any work.
The basic prerequisite for safe working is to comply
with the safety notes and all instructions in this
manual.

The local regulations for health and safety at work
and general safety regulations also apply.

Qualified staff

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

HVAC technician

HV

AC technicians are individuals who have suffi­cient professional or technical training in the field
they are working in to enable them to carry out their
assigned duties at the level of responsibility allo­cated to them and in compliance with the relevant
guidelines, safety regulations and instructions.
HVAC technicians are individuals who have in­depth knowledge and skills related to HVAC sys­tems; they are also responsible for the professional
completion of the work under consideration.

HVAC technicians are individuals who have suffi­cient professional or technical training, knowledge
and actual experience to enable them to work on
HVAC systems, understand any potential hazards
related to the work under consideration, and recog­nise and avoid any risks involved.

Limitation of liability

The information in this manual has been compiled
with reference to the applicable standards and
guidelines, the state of the art, and our expertise
and experience of many years.

The manufacturer does not accept any liability for
damages resulting from:

 Non-compliance with this manual
 Incorrect use
 Operation or handling by untrained individuals
 Unauthorised modifications

The actual scope of delivery may differ from the
information in this manual for special constructions,
additional order options or as a result of recent
technical changes.

Copyright

This document, including all illustrations, photos,
etc., is protected by copyright.

Any use of this document without the written con­sent of the manufacturer is an infringement of copy­right; this applies in particular to disclosing this
document to third parties, to publishing, copying,
microcopying, or translating content, and to saving
content on electronic systems or modifying it.

V

iolators will be held liable for any damage. The

right to further claims remains reserved.

Personal protective equipment

Personal protective equipment must be worn for
any work in order to reduce health or safety haz­ards to the minimum.

The appropriate protective equipment for a job must
be worn for as long as the job takes.

Correct use

Non-return dampers are used to prevent air from
flowing against the intended airflow direction. They
open and close automatically and are used for
supply air or extract air in ventilation and air condi­tioning systems.

Important notes

Non-return dampers Types UL, KUL, WG-KUL, ARK, ARK-12

Incorrect use

WARNING!

Danger due to incorrect use!

Incorrect use of the damper can lead to dan­gerous situations.

Never use the damper:

–

in areas with potentially explosive atmos-

pheres
– for process air
– outdoors without sufficient protection against

the effects of weather
– in humid rooms
– in rooms with aggressive or dust-laden air

Transport and packaging

Transport

CAUTION!

Danger of injury from sharp edges, sharp cor­ners and thin sheet metal parts!

Sharp edges, sharp corners and thin sheet metal
parts may cause cuts or grazes.

– Be careful when carrying out any work.
–

Wear protective gloves, safety shoes and a

hard hat.

Use only lifting and transport gear designed for the
required load. Always secure the load against tip­ping and falling.

Upon delivery

, carefully remove the packaging and
check the damper for transport damage and com­pleteness.

Storage

Please note:

 Store the unit only in its original packaging
 Protect the unit from the ef

fects of weather

 Protect the unit from humidity, dust and con-

tamination

 Storage temperature: –10 to 50 °C
 Relative humidity: 95 % max., non-condensing

Transport and packaging

Non-return dampers Types UL, KUL, WG-KUL, ARK, ARK-1 3

Installation

General safety notes

CAUTION!

Danger of injury from sharp edges, sharp cor­ners and thin sheet metal parts!

Sharp edges, sharp corners and thin sheet metal
parts may cause cuts or grazes.

– Be careful when carrying out any work.
–

Wear protective gloves, safety shoes and a
hard hat.

Personnel:



HV

AC technician

NOTICE!

Contamination or damage will impair the
function of the damper

.

Protect the damper from contamination and
damage.

Please note:

 Installation should be vertical and without tor-

sion

 Installation only into horizontal ducts, with the

blades horizontal

 Installation in vertical ducts only with the

damper opening against gravity (extract air
ducts)

 Note the airflow direction
 Duct connection on one side or on both sides

(with UL only on one side)

 Dampers that are not screw-fixed to the wall or

ceiling slab require suspensions.

 The function of the damper must be checked

before installation.

General installation information

Fig. 2: Installation types

①

Ducts on both sides (only with KUL, ARK-1)

②

Without duct (air transfer)

③

Duct on one side (air outlet)

④

Duct on one side (air inlet)

The non-return dampers are installed away from
walls (in ducts), or adjacent to or on the face of
walls and ceiling slabs.

Installation on the discharge side of a fan (only
UL, KUL)

Fig. 3: Upstream section

Turbulence on the discharge side of a fan may
damage the blades of the non-return damper

. A
straight upstream section >B+H is hence required
on the discharge side of a fan.

Installation

Non-return dampers Types UL, KUL, WG-KUL, ARK, ARK-14

Installing UL

NOTICE!

Risk of damage due to incorrect use.

Do not use the UL non-return damper in external
walls or as an exhaust air or fresh air damper

.

For external walls use only WG-KUL (with factory
mounted external weather louvre).

Fig. 4: Wall installation

UL1 Extract opening
UL2 Supply opening

Note the airflow direction (blade opening direction)

Installation opening H

1

B

1

Without installation sub­frame

H + 15 B + 15

With installation sub­frame

H + 35 B + 35

Fix the damper with suitable screws (by others);
flange holes ≈∅9 mm.

Installation

Non-return dampers Types UL, KUL, WG-KUL, ARK, ARK-1 5

Installing KUL / WG-KUL

NOTICE!

Risk of damage due to incorrect use.

Do not use the KUL non-return damper in
external walls or as an exhaust air or fresh air
damper

.

For external walls use only WG-KUL (with factory
mounted external weather louvre).

Fig. 5: Wall installation without installation subframe
(KUL shown)

Fig. 6: Duct installation (KUL shown)

Fix the damper with suitable screws (by others);
flange holes ∅9.5 mm.

Fig. 7: Installation with installation subframe (WG­KUL-1 shown)

①

Threaded stud

②

Fixing tab

③

Installation subframe

Items 1 to 3 are included in the installation sub­frame supply package

Installation opening H1 B1

Without installation sub­frame

H + 95 B + 95

With installation sub­frame

H + 115 B + 115

Installation

Non-return dampers Types UL, KUL, WG-KUL, ARK, ARK-16

Installing ARK-1

NOTICE!

Risk of damage due to incorrect use.

Do not use the ARK-1 non-return damper in
external walls or as an exhaust air or fresh air
damper

.

Fig. 8: Horizontal airflow

Fig. 9: Vertical airflow

Fig. 10: Wall installation without installation sub­frame (ARK-1 shown)

①

Blade movement area must be kept clear

Fig. 11: Duct installation (ARK-1 shown)

①

Blade movement area must be kept clear

Installation

Non-return dampers Types UL, KUL, WG-KUL, ARK, ARK-1 7

Fix the damper with suitable screws (by others);
flange holes (only KUL-G) ∅9.5 mm.

Fig. 12: Wall installation with installation subframe
(steel/stainless steel construction)

①

Threaded stud

②

Fixing tab

③

Installation subframe

Items 1 to 3 are included in the installation sub­frame supply package

Installing the installation subframe

Fig. 13: Installation subframe and damper assembly

①

Threaded stud

②

Washer

③

Hexagon nut

④

Fixing tab

⑤

Hexagon head screw

⑥

Installation subframe

⑦

Damper casing

Installation

Non-return dampers Types UL, KUL, WG-KUL, ARK, ARK-18

Fig. 14: Bend and spread the fixing tabs before
installation

Connecting the duct

Use screws to attach the damper to the ducting.
The damper casing has flange holes for duct con­nection.

Seal the joint between the casing flange and the
duct in order to avoid pressure loss. Use sealing
tape, for example, and clamps or additional screws,
if necessary

.

The movement of the damper blades must not be
obstructed by any attachment.

Commissioning and maintenance

Commissioning

Personnel:



HV

AC technician

As part of commissioning, the non-return damper
must be tested for correct functioning.

NOTICE!

Start-up of fans with UL/KUL

Ensure a gradual start-up of fans to avoid a
sudden pressure increase.

NOTICE!

ARK-1 blade restrictors

T

ype ARK-1 non-return dampers have adjustable
blade restrictors, which can be adjusted as part
of commissioning.

Maintenance

Non-return dampers are maintenance-free with
regard to wear but must still be included in the reg­ular cleaning of the ventilation system.

Commissioning and maintenance

Non-return dampers Types UL, KUL, WG-KUL, ARK, ARK-1 9

Technical data

UL/KUL

Data Value Unit

Max. pressure 100 Pa

Operating temperature -20 – 80 °C

Total differential pressure at 2.5 m/s 25 Pa

WG-KUL

Data Value Unit

Max. pressure 100 Pa

Operating temperature -20 – 80 °C

Total differential pressure – exhaust air at 2.5 m/s 55 Pa

Total differential pressure – fresh air at 2.5 m/s 60 Pa

ARK-1

Data Value Unit

Max. pressure 5000 Pa

Operating temperature (galvanised steel) 0 – 80 °C

Operating pressure (galvanised steel with optional Viton seal) 0 – 120 °C

Operating pressure (stainless steel with optional Viton seal) 0 – 200 °C

Total differential pressure at 10 m/s (horizontal airflow) 115 Pa

Differential pressure at 2 m/s (vertical airflow) 135 Pa

Differential pressure at 10 m/s (vertical airflow) 45 Pa

Closed blade air leakage (against the intended airflow direc­tion) to EN 1751 (class)

4

Casing air leakage to EN 1751 (class) C

For more technical data see the technical leaflet.

Technical data

Non-return dampers Types UL, KUL, WG-KUL, ARK, ARK-110

Non-return dampers Types UL, KUL, WG-KUL, ARK, ARK-1 11

Non-return dampers Types UL, KUL, WG-KUL, ARK, ARK-112