KA-EU

Tested to VDI 6022

Capillary tube sensor

KA-EU with electric blade opening actuator

KA-EU

FOR THE EXTRACT AIR OF COMMERCIAL KITCHENS

Rectangular fire damper for use in extract air and exhaust air ducts of commercial kitchens. For the isolation of duct penetrations between fire compartments, available in 16 nominal sizes

Nominal sizes from 250 × 225 to 1200 × 500 mm
100% free area ensures maximum safety
No differential pressure, low sound power level
Easy to clean
Integration into the central BMS with TROXNETCOM

Optional equipment and accessories

Electric blade opening actuator, 230 V
Control module

Application

Application

Fire dampers of Type KA-EU for shutting off extract air and exhaust air ducts of commercial kitchens, with general building inspectorate licence
To prevent the propagation of fire and smoke through ductwork to adjacent designated fire compartments

Special characteristics

General building inspectorate licence Z-41.3-692
Tested for fire resistance properties to DIN 4104-6 and EN 1366-2
100% free area
Low differential pressure and sound power level
Integration into the central BMS with TROXNETCOM

Classification

Fire resistance class K90to DIN 4102-6

Nominal sizes

250 × 225 to 1200 × 500 mm
L: 595 – 880 mm (depending on the selected casing height)

Description

Variants

With thermal release mechanism
With thermal release mechanism and control module
With electric blade opening actuator and control module

Parts and characteristics

Installation in horizontal or vertical ducts
Installation in horizontal ducts with the damper blade at the top and airflow in any direction
100% free area, hence low differential pressure
Secure closure by means of gas struts even when there are deposits
Release temperature 72 °C

Attachments

Capillary tube sensor

Construction features

Rigid rectangular casing with installation subframe
Connecting flanges with fixing holes on both sides, suitable for duct connection
Scrapers on the damper blade to scrape off greasy deposits etc.
Damper blade outside of the airflow
Remote control with electric blade opening actuator

Materials and surfaces

Casing:

Galvanised sheet steel
Stainless steel 1.4301

Damper blade:

Special insulation material faced with stainless steel

Other components:

Damper blade shafts made of galvanised steel or stainless steel

Standards and guidelines

EN 1366-2:1999 Fire resistance tests for service installations – Fire dampers
DIN 4102-6, standard fire resistance test
EN 1751 Ventilation for buildings – Air terminal devices
VDI 2052 Ventilation equipment for kitchens

Maintenance

The functional reliability of the fire damper must be tested at least every six months; this has to be arranged by the owner of the ventilation system; functional tests must be carried out in compliance with the basic maintenance principles stated in EN 13306 and DIN 31051. If two consecutive tests, one 6 months after the other, are successful, the next test can be conducted one year later.
A functional test involves closing the damper blade and opening it again; with electric blade opening actuator this can be done via remote control
Fire dampers must be included in the regular cleaning schedule of the ventilation system.
For details on maintenance and inspection refer to the installation and operating manual

Technical information

Schematic illustration of KA-EU

① Mounting plate
② Spring tab
③ Limit switch for damper blade position CLOSED
④ Limit switch for damper blade position OPEN
⑤ Electromagnet
⑥ Damper blade with scraper
⑦ Casing
⑧ Gas strut
⑨ Fixing tab
⑩ Setting lever

Construction for manual operation

Functional description

In the event of a fire, fire dampers shut automatically to prevent the propagation of fire and smoke through ductwork to adjacent designated fire compartments. When in the event of a fire the temperature rises to 72 °C, a capillary tube sensor interrupts the power supply to the electromagnet, and the damper blade is released. While power is being supplied to the electromagnets, the fire damper can be opened with the blade opening lever. The release mechanism is accessible and can be tested from the outside.

Construction with electric blade opening actuator

Functional description

Nominal sizes	250 × 225 – 1200 × 500 mm
Volume flow rate range	Up to 6000 l/s or 21600 m³/h
Operating temperature	10 to 50 °C
Release temperature	72 °C

Quick selection

Duct dimensions B × H in mm	Volume flow rate V [l/s]						Volume flow rate V [m³/h]
Duct dimensions B × H in mm	Airflow velocity v_A [m/s]
Duct dimensions B × H in mm	5	6	7	8	9	10	5	6	7	8	9	10
250 × 225	280	340	390	450	505	560	1008	1224	1404	1620	1818	2016
300 × 225	340	410	470	540	610	675	1224	1476	1692	1944	2196	2430
300 × 300	450	540	630	720	810	900	1620	1944	2268	2592	2916	3240
400 × 300	600	720	840	960	1080	1200	2160	2592	3024	3456	3888	4320
400 × 400	800	960	1120	1280	1440	1600	2880	3456	4032	4608	5184	5760
500 × 400	1000	1200	1400	1600	1800	2000	3600	4320	5040	5760	6480	7200
600 × 400	1200	1440	1680	1920	2160	2400	4320	5184	6048	6912	7776	8640
700 × 400	1400	1680	1960	2240	2520	2800	5040	6048	7056	8064	9072	10080
500 × 500	1250	1500	1750	2000	2250	2500	4500	5400	6300	7200	8100	9000
600 × 500	1500	1800	2100	2400	2700	3000	5400	6480	7560	8640	9720	10800
700 × 500	1750	2100	2450	2800	3150	3500	6300	7560	8820	10080	11340	12600
800 × 500	2000	2400	2800	3200	3600	4000	7200	8640	10080	11520	12960	14400
900 × 500	2250	2700	3150	3600	4050	4500	8100	9720	11340	12960	14580	16200
1000 × 500	2500	3000	3500	4000	4500	5000	9000	10800	12600	14400	16200	18000
1100 × 500	2750	3300	3850	4400	4950	5500	9900	11880	13860	15840	17820	19800
1200 × 500	3000	3600	4200	4800	5400	6000	10800	12960	15120	17280	19440	21600

Square or rectangular fire dampers for the isolation of extract air or exhaust air duct penetrations in commercial kitchens. With flanges for installation in horizontal or vertical ducts. Secure closure by means of gas struts even when there are deposits.

Tested for fire resistance properties to DIN 4102-6 and EN 1366-2, fire resistance class K90; casing made of sheet steel, stainless steel as an option. Low-leakage damper blade made of special insulation material faced with stainless steel. Scrapers on the damper blade to scrape off greasy deposits etc. Thermal release mechanism 72 °C. Two electric limit switches for capturing damper blade positions CLOSED and OPEN as well as for switching the fan off; electric blade opening actuator and control module as options. For mortar-based installation into solid walls and ceiling slabs, and into lightweight partition walls and fire walls with metal support structure and cladding on both sides.

Special characteristics

General building inspectorate licence Z-41.3-692
Tested for fire resistance properties to DIN 4104-6 and EN 1366-2
100% free area
Low differential pressure and sound power level
Integration into the central BMS with TROXNETCOM

Materials and surfaces

Casing:

Galvanised sheet steel
Stainless steel 1.4301

Damper blade:

Special insulation material faced with stainless steel

Other components:

Damper blade shafts made of galvanised steel or stainless steel

Technical data

Nominal sizes: 250 × 225 – 1200 × 500 mm
Volume flow rate range: up to 6000 l/s or 21600 m³/h
Operating temperature: 10 to 50 °C
Release temperature: 72 °C

Type
KA-EU Fire damper for the extract air of commercial kitchens

Material
No entry: galvanised casing
2 Stainless steel 1.4301

Country of destination
DE Germany
Other destination countries upon request

Nominal size [mm]
B × H × L

Attachments
Z00       Standard construction
Z01       With control module
Z02       With electric blade opening actuator and control module

Downloads

product information

Technical leaflet

06/2015 Type KA-EU 850 KB pdf

operation manuals

Installation and operating manual

KA-EU_IOM_A00000068654_V2_2024_07_GB_en Type KA-EU 4 MB pdf

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KA-EU

KA-EU