Operation and Maintenance Manual
– SCD Smoke Dampers
Version 1
Date 04 2018
Page 4 of 81
1. INTRODUCTION
The purpose of this Operation and Maintenance Manual is to familiarize the user with
the intended use, design, operating principle, installation, periodic maintenance and
operation of the product. Observing instructions contained in the Operation and
Maintenance Manual will ensure correct operation of the device throughout its entire
lifetime.
SCD smoke dampers together with the control system may constitute the
configuration of several components made by various Manufacturers. Each component is
delivered along with the Manufacturer’s Manual. Both – assembly companies and the User
– are obliged to read those Manuals and apply them with regard to installation, operation
and maintenance.
2. FORMAL AND LEGAL ASPECTS OF INTRODUCING SCD SMOKE DAMPERS
INTO THE MARKET
Certificate of Constancy of Performance No. 1438-CPR-0503, specified in PN-
EN 12101-2:2005, is a legal basis for using SCD smoke dampers.
3. INTENDED USE AND PRODUCT CLASSIFICATION
SCD smoke dampers are used in public buildings, warehouses, production facilities
etc. They are designed for mounting onto flat roofs slanted at not more than 15°.
The main function of SCD smoke dampers is extracting smoke and hot toxic gases
occurring during fire in the under-ceiling space.
SCD smoke dampers by Smay Sp. z o. o. have openable leafs filled with translucent
material. Therefore, they additionally function as spot skylights. The third function of SCDs,
when appropriate tooling is used, is cyclic ventilation.
In each and every case smoke extraction is the priority function of SCD smoke
dampers. SCDs make it possible to evacuate people and enable rescue services to
undertake appropriate intervention by keeping the lower areas of a building, including
escape routes, free of smoke. Smoke dampers reduce the thermal load of the building
structure by reconducting the heat created during a fire, and thus reducing material injury
caused by the fire.
Using SCD smoke dampers gives the possibility to lower the building fire protection
class, enlarge permissible fire zones and lengthen escape routes.
SCD smoke dampers are classified according to PN-EN 12101-2 criteria, with regard
to the following areas:
Reliability: double action, Re 1000,
Snow load: SL550
– SL 1000 (depending on the drive size and type),
Low temperature: T(00)
– T(–25) (depending on the drive size and
type),
Wind load: WL 1500,
Resistance to high temperature: B 300,
Single leaf damper effective areas are presented in Table 1, and double leaf damper
effective areas
– in Table 2.
It is possible to make the dampers in the version meeting the requirements of
the B
ROOF
(t
1
) classification. The properties distinctive for the skylight function are
declared according to EN 1873:2014+A1:2016 requirements
