Greenheck Vektor-M Series Bedienungsanleitung

Greenheck’s bypass air dampers and isolation dampers are designed to provide superior

airﬂow control in severe environments.

System dampers are designed and sized for speciﬁed application pressure and ﬂow requirements. Both isolation

and/or bypass air dampers on Vektor systems are available with factory-mounted and wired electric actuators.

Each actuator is selected and sized to handle the speciﬁc torque requirements of the laboratory application.

Greenheck Advantages:

• Bypass air dampers are custom selected for each system static pressure and ﬂow

• Structurally rigid, airfoil formed steel blades are corrosion-resistant coated steel, formed to operate against

high static pressures

• Damper shaft, bearings, and jamb seals are 316 SS

• All non-stainless components have a polyester resin powder coating, electrostatically applied and baked at

400ºF. (Standard on isolation dampers, optional on bypass air dampers).

• Damper and drive linkage is factory set and welded to prevent mechanical slippage. Linkage and operators

are outside of the hazardous/corrosive exhaust.

• Bypass air dampers use opposed blades for accurate ﬂow control. Isolation dampers maintain plenum

containment using tight shut-off parallel blades.

• Industrial isolation and bypass air dampers are manufactured by Greenheck Fan Corporation, Schoﬁeld,

Wisconsin USA

Isolation & Bypass

Dampers and Controls

for Vektor Laboratory Exhaust

Vektor-M Series Bypass Air Plenum

and Roof Curb

Vektor-C Series Bypass Air Plenum

and Roof Curb

April

2018

Vektor Isolation Dampers Features and Options Vektor-M Series Vektor-C Series

Standard Construction Material (Frame, Blade) Galv. Steel Galv. Steel

Stainless Steel Construction Material (Frame, Blade) Optional Optional

Hi-Pro Polyester Coating Yes Yes

Blade Style Airfoil Airfoil

Electric Actuator Optional Optional

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

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

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)

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

factory-mounted.

Isolation dampers use parallel airfoil damper blades

Damper linkage and optional actuator are located

outside the exhaust airstream and protected

by a weatherproof cover

Isolation Dampers

Greenheck’s bypass air dampers mix ambient air with exhaust air from the laboratory space. On variable

volume lab exhaust systems, bypass air damper modulation allows reduction in lab exhaust ﬂow while

maintaining constant fan discharge ﬂow rate, velocity, and plume rise.

A weatherhood with the stainless steel

birdscreen protects the bypass damper,

actuator and damper controls from the

ambient elements. Damper actuators

and controls are mounted outside of the

contaminated exhaust allowing servicing

without accessing the contaminated

plenum interior.

Bypass dampers utilize opposed blades for

ﬂow control and are sized for each unique

system application. Construction includes

a polyester resin coated and baked, heavy-

gauge steel formed casing and airfoil

blades. Jamb seals, bearing and blade

shafts are stainless steel. Damper blade

edge seals are silicone.

Bypass dampers are available with

optional factory-mounted electric

modulating or pneumatic actuators.

Vektor Bypass Damper Features and Options Vektor-M Series Vektor-C Series

Standard Construction Material (Frame, Blade) Galv. Steel Galv. Steel

Stainless Steel Construction Material (Frame, Blade) Optional Optional

Hi-Pro Polyester Coating Optional Optional

Blade Style Airfoil Airfoil

Electric Actuator Optional Optional

Bypass Air

Damper

Isolation Damper

Bypass Air Plenum

Lab Exhaust

(Horizontal Intake)

Lab Exhaust

(Vertical Intake)

Bypass Air

What Does Bypass Air Do?

As the lab exhaust ﬂow requirement

diminishes, the bypass air damper opens,

reducing the lab exhaust ﬂow and adding

ambient air to the reduced lab exhaust

ﬂow. The added bypass air assists in the

dispersion of hazardous lab efﬂuent while

maintaining constant fan discharge ﬂow,

velocity, and plume rise.

When the lab exhaust ﬂow requirement

increases, the bypass air damper closes

and reduces the amount of added

ambient air to the increased lab exhaust.

Bypass air dampers are typically

controlled with modulating actuators tied

into the laboratory control system.

Bypass Air Dampers and Weatherhoods

Vektor lab exhaust isolation and bypass air dampers are available with factory-mounted electric or pneumatic

actuators to expedite system installation and to contribute to a safe, operational lab system.

Isolation Damper Actuator Options

• 2-position spring return actuator with end switches

• Electric actuators in 230 VAC, 115 VAC, 24 VAC, or 24 VDC are

mounted and wired with transformer

• Single point wiring of the transformer and actuator

• NEMA-1 enclosure (NEMA-4 enclosure optional)

Bypass Damper Actuator Options

• Modulating operation for bypass airﬂow control

• Electronic actuators in 230 VAC, 115 VAC, 24 VAC, or 24 VDC

(transformers optional)

• NEMA-1 enclosure (NEMA-4 enclosure optional)

Isolation Damper Actuator

and Transformer

Bypass Damper Actuator

Prepared to Support

Green Building Efforts

Family of Lab Exhaust Systems

Vektor®-MHVektor®-H

Vektor®-CS

Vektor®-CD

Vektor®-MD

Vektor®-MS

Vektor®-HS

Our Commitment

As a result of our commitment to continuous improvement, Greenheck reserves the right to change

specifications without notice.

Specific Greenheck product warranties are located on greenheck.com within the product

area tabs and in the Library under Warranties.

P.O. Box 410 • Schofield, WI 54476-0410 • Phone (715) 359-6171 • greenheck.com

Damper Controls

Vektor®-CH

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