CSS - 'ES' Rated Circular Fire/Smoke Damper


CSS - 'ES' Rated Circular Fire/Smoke Damper

Key Features

• CE marked fulfilling the requirements of EN 15650 
• Approved by LPCB and conforms to LPS1162 issue 4 
• Fire tested to EN 1366-2 
• Classified to EN 13501-3 
• Corrosion tested to EN60068-2-52 
• Tested Installation Method to suit Concrete/ Masonry Floors & Walls and Dry Walls 
• Choice of electrical Control Modes 
• Unique and patented Electrical Thermal Release for ultimate safety 
• Halogen Free low smoke and fume cabling supplied as standard 
• Actionpac damper Control System compatibility 
• Suitable for standard or 50mm insulated circular ductwork. 


Following the introduction of the new Construction Products Regulation (CPR) onthe 1st July 2013, Actionair, a brand of Swegon Air Management Limited, offer a comprehensive range of CE marked fire dampers together with approved installation methods. 

Under the CPR, manufacturers of construction products which are covered by harmonised European standards (hENs) are required to affix the CE mark and make a Declaration of Performance (DoP) for their products. 

CE marked fire dampers must fully comply with the product standards: EN 15650:2010 Ventilation for Buildings - Fire Dampers and compliance is verified through assessment by a "Notified Body".


The circular fire damper incorporates a unique and patented seal that provide ES leakage performance at both ambient and fire conditions.

It is housed in a galvanised case complete with two installation flanges for easy fitting concrete/ Masonry Floors and Walls and Dry Walls applications.


CSS, CE Marked 'ES' Rated Fire Dampers with a single 430 stainless steel blade incorporating patented seal to provide both ambient and fire rated low leakage. Damper conforms to EN 15650 fire tested to EN1366-2 and classified to EN 13501-3 - ES120 vertical and horizontal. Damper casings conform to BSEN1506 for both horizontal and vertical application. 1 pair of 1.2mm galvanised steel hinged Installation flanges are provided with each damper. The Actionair Factory fitted Compact electrical control mode with thermal sensing to provide Fail-Safe-Closed operation.

Electrical actuators are fitted with halogen free low smoke and fume cables. They have 60 second reset time and a 20 second release time. Each actuator has a 72C rated electrical thermal release (ETR). The ETR incorporates a safety electrical interlock that only permits actuator operation when correctly fitted.

A green healthy indication lamp is built into the ETR to give a simple and clear visual check that the actuator is receiving power, the ETR is correctly fitted and the thermal fuse is intact. A manual test switch allowing periodic operation of the damper for testing purposes simulates actuator fail-safe release under fire/smoke conditions. End switches are provided with each mode for reset and release monitoring. The CSS Damper and selected Compact Control Mode (Mode 5 24V, or Mode 6 230V) as supplied by Actionair.


CSS ES Rated Fire Dampers available in standard duct sizes 100mm to 355mm diameter, can be used where the operating total system pressure is up to 1500 Pascals and duct velocities to 15m/second.

The CSS Damper blades are open and fail-safe to the closed position. Dampers may be installed both vertically and horizontally. Airflow can be from either direction.



Product Documents

Title Type Added
Actionair Complete Fire and Smoke Damper Installation Manual IOM about 2 months ago
CSS Damper EC Declaration of performance Certification about a year ago
CSS Product Installation Operation and Maintenance IOM about a year ago
Mode 5 and 6 PTC Compact data sheet Datasheets about a year ago
CSS Damper Catalogue Brochure about 2 years ago

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