Arrangement "D" Exhaust Fire Damper Assemblies; Link/Cable Assemblies For Various Exhaust Duct Collar Sizes - Spring Air Systems Dynaflow Installation And Maintenance Manual

ARRANGEMENT "D" FIRE DAMPER ASSEMBLIES:
Provide on all FD Dynaflow Hoods.
(FN Hoods do not have a fire damper in the exhaust
duct collar)
Description:
The section view of the exhaust fire damper to the right
shows a cross section of the exhaust duct collar, fire
damper blade, fusible link, adjustable cable block, spring,
and stainless steel cable when the damper is in the set
position.
In the event of a fire in the exhaust duct collar, the fusible
link melts, releasing the fire damper, which closes tight
on the damper blade stops and seals. The second drawing
shows the damper as the fusible link has been removed.
The damper will rotate clockwise against the damper bar
weight and close.
The complete assembly is part of the UL/ULC listed
Spring Air Systems "Commercial Kitchen Exhaust Hood
with Fire Damper".

Link/Cable Assemblies for various Exhaust Duct Collar Sizes.

Dampers up to 18" long:
UP TO 18"
PIN
FIRE DAMPER
BLADE
FIRE DAMPER
SHAFT
Exhaust Fire Damper up to 18" long
Figure 10
DAMPER BLADE
STOPS
SECTION VIEW OF ASSEMBLE FUSIBLE LINK
SECTION VIEW OF DISASSEMBLE FUSIBLE LINK
Link/Cable Assembly
Figure 9
WIDTH
EXHAUST DUCT
COLLAR PERIMETER
DAMPER BLADE
DUCT FLANGE
DAMPER BLADE STOPS
SPRING
CABLE BLOCK
FUSIBLE LINK
PIN
7