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Isolation Dampers
Greenheck isolation dampers are designed to prevent air leakage into the system when the fans operate in
"stand-by" mode or the system is off. Isolation dampers are two-position actuated as standard (provided with
electric actuators as an option), or can be provided as gravity backdraft (please consult the factory).
Isolation dampers are factory installed and shipped with the bypass
1
air plenum as an assembly; constant volume systems (no bypass
air plenum) may have curb mounted isolation dampers
Standard isolation damper construction includes a polyester resin
2
powder coated and baked, heavy-gauge steel formed casing and airfoil
blades. Jamb seals, bearing and blade shafts are stainless steel.
Isolation dampers can be removed by detaching the cover (Vektor-M)
3
or by removing the compact square-to-round transition (Vektor-C)
without accessing the contaminated interior of the bypass air plenum
Shaft extensions are provided for all actuators. Actuators can be
4
factory-mounted.
Isolation dampers use parallel airfoil damper blades
5
Damper linkage and optional actuator are located
6
outside the exhaust airstream and protected
by a weatherproof cover
Vektor Isolation Dampers Features and Options
Standard Construction Material (Frame, Blade)
Stainless Steel Construction Material (Frame, Blade)
Hi-Pro Polyester Coating
Blade Style
Electric Actuator
1
3
4
Vektor-M Series
Vektor-C Series
Galv. Steel
Optional
Yes
Airfoil
Optional
5
2
6
Galv. Steel
Optional
Yes
Airfoil
Optional
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