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Operation and Maintenance Manual
– SCD Smoke Dampers
Version 1
Date 04 2018
Page 73 of 81
The mounting of the damper should be carried out precisely in accordance with the
Installation Manual, version 1, by means of materials specified in this manual only.
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.
•
SCD dampers may be mounted on steel, concrete or wooden roof structures. The
damper is fixed to the roof structure with the use of a base flange, which is
screwed in by means of connectors, selected accordingly to the type of structure.
The fixing elements spacing should not exceed 350 mm.
•
Dimensions of recommended fasteners
Ground
Fastener
Steel
5.5 x 16 self-drilling screws
Concrete
Plastic anchor with a steel screw
– 8 x 60 size
Wood
6 x 60 countersunk wood screw
•
Minimum distance from the hole edge
Ground
Minimum distance from the hole edge
Steel
15 mm
Concrete
50 mm
Wood
30 mm
Rys. 55. Guidelines for the foundation of a SCD damper on a roof structure.
•
During setting and installation of the base check if the diagonal dimensions are
equal. Acceptable deviation is ± 2 mm.
The damper base insulation prevents excessive heat loss. The insulation method
is specified by the Designer. Thermal insulation materials and anti-damp insulation
materials adjusted to the roof specification, compatible with the project
specification, are delivered by the Installer. In case of standard roof structures it is
possible to include insulation materials in the Manufacturer’s completion.
•
It is recommended to insulate the entire perimeter of the base with mineral wool,
50 mm thick. The insulation material should be of A1 reaction-to-fire class and be
characterised by high density (150 kg/m3 minimum) and thermal insulation power
(thermal resistance Ri = 1.25 m
2
∙K/W minimum).
•
It is recommended to introduce the anti-damp processing (PCV membrane,
building paper) under the drip cap of the aluminium drainpipe.
Fasten elements of the anti-damp insulation, in accordance with the rules of the