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Actionair CSS

'ES' Rated Circular Fire Damper
  • CE marked fulfilling the requirements of EN 15650
  • 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
  • Available in both left handed and right handed configurations
  • 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

Technical specifications

Product Specification

Swegon Actionair 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 - E90S/E120 in vertical installation and E120S in horizontal installation. Damper casings conform to BSEN1506 for both horizontal and vertical application. One 1.2mm galvanised steel hinged installation flange is provided with each damper. Factory fitted COMPACT-M5 (24v) or COMPACT-M6 (230v) electrical actuator 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 72°C 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.

Application Parameters  

CSS ‘ES’ Rated Fire Dampers are available in 100, 125, 150, 160, 200, 250, 300, 315, 350 and 355 circular sizes manufactured to BS EN 1506. The CSS dampers can be incorporated into systems using SmokeShield dampers or, within circular ventilation systems, as an alternative to the SmokeShield 601 fire dampers. CSS dampers can be used where the operating total system pressure is up to 1500 Pascals and duct velocities up to 15 m/s.

The CSS damper blade is normally open and Fail-Safe returns to the closed position. CSS dampers are designed for applications in normal dry filtered air systems. If exposed to fresh air intakes / or inclement conditions please discuss your application with our technical team.

Installation Drawing Reference

  • SSC = Standard Supporting Construction
  • NSSP = Non-Standard / Specific Supporting Construction

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Document Article Document type Date Download
Installation Drawing (pdf 917.81kB) AAF13413[A]_Vertical_CSS_Standard_Flexible Partition Wall (SSC) Others 18/07/2022
Product Sheet (pdf 332.27kB) 230V Spring-return aRAM230-1-L2 - Spring-return actuator 90°, AC 230 V, 9 Nm / 7 Nm, with ETRctuator Technical catalogue 01/04/2021
Product Sheet (pdf 480.55kB) Actionair CSS Product Sheet Technical catalogue 20/02/2023
Declaration of Performance (pdf 275.68kB) Actionair CSS Declaration of Performance Quality 18/07/2022
Installation Guide (pdf 3.61MB) Actionair CSS IO&M IOM Manual 18/07/2022
Product Sheet (pdf 326.08kB) RAM2-AA-24-1 - Spring-return actuator 90°, AC/DC 24 V, 9 Nm / 7 Nm, with ETR Technical catalogue 01/04/2021
Installation Drawing (pdf 1.09MB) AAF12822[D]_Vertical_CSS_Standard_Rigid or Blockwork Wall (SSC) Others 06/05/2022
Installation Drawing (pdf 942.61kB) AAF12820[D]_Vertical_CSS_Standard_Flexible Partition Wall (SSC) Others 06/05/2022
Installation Drawing (pdf 944.19kB) AAF12821[D]_Horizontal_CSS_Standard_Slab (SSC) Others 06/05/2022