SystemAir PKI-C EI120S, Manual, Page: 8 / 63

Installation of Round Fire Dampers
Fire Dampers
Fig. 5 Spacing between the dampers
Fig. 6 Correct position of closed damper blade
Fire damper placement and clearances
Damper release mechanism or actuator can be located on
any side of the wall or ceiling.
However it must be positioned in such way that there is
easy access provided for inspection or service.
Examples of damper locating can be seen in fig. 7.
Spacing between the fire dampers must be a minimum of
200 mm. At mechanical manufacture must be on the side
where mechanism is situated free space the side where of
min. 500 mm left.
Fire damper is embedded into fire partition construction in
such way that when the damper blade is in closed position,
the blade will be situated within the wall (fig. 8).
Damper can be embedded in the wall or in the ceiling
with min. thickness of 110 ± 10 mm according to STN EN
1366-2.
All connecting ducts to the fire damper must be supported
or suspended in such way that the duct weight would not
lean on damper or damper flanges. Further more the
damper should not bare any weight from the above or
surrounding construction of the wall , this can result in
distortion of the casing and ultimately malfunction of the fire
damper.
All dampers are designed to be installed with damper blade
in parallel 0º to horizontal position or 0º in vertical position.
Any other angle will compromise the integrity and function
of the fire damper.
Note: After installation, Fire damper functionality must be
tested (see operating manual).
Available Duct connections
Round fire dampers are provided as standard without any
rubber gaskets or flanges.
Accessories such as air tight joint connection (
Code NT , Fig
3a), and-or pre-drilled flanges ( Code P, Fig 3b) can be
provided separately on demand
Accessories are supplied non mounted and separately to be
mounted on site by others.
Note: During the installation of the Flanges, proper sealant
and gasket must be used to avoid any leakages at the duct
connection.
Flange connection
Fig. 3b Round fire dampers with Flanged connection Code P
Fire damper Tight connection
Duct
Fig. 3a Connecting a damper of round cross-section with
air tight connection joint, Code NT
Fig. 4 Allowable damper blade position