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Since 1948, Nystrom has been the go-to manufacturer of specialty building products providing a wide range of floor, roof, wall,
ceiling, and stair access products that create safer, more accessible buildings. We offer hassle-free services including access
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©2023 Babcock-Davis, Inc.
Rev 02/2023
Installation & Ope Maintenance
AcousticMAX Smoke Vent
Model(s): BSVZ/BSVY
9
Great Products. Better Partners.
Babcock-Davis is a leader in roof hatches, smoke vents and safety railings for the commercial roofing market. We also manufacture architectural
access and safety-related building products for commercial structures. Babcock-Davis provides local connections through a broad distribution
network to accelerate and simplify the building process for contractors and building owners, offering hassle-free services including access to
technical experts, REVIT tools for BIM, HPDs for LEED v4, 3-part specifications and AIA-accredited continuing education courses.
OVERVIEW
Smoke vents with linear actuators are designed to conveniently open and close smoke vents
remotely with a push button controller. The system is comprised of linear actuators (one per
cover), a control box mounted to the inside of the smoke vent curb, a 2 position (open, close)
push button station.
These smoke vents are also designed to open automatically without power in the event of a
fire emergency. Smoke vents open thermally when heat parts a fusible link and they also
open manually with both internal and external manual pull handles.
Linear Actuator Smoke Vent Modes of Operation
Open Smoke Vents
1.
*Manual: Pull manual release cable (exterior or interior) to release the actuator latch
and open vents
2.
*Thermal: Fusible link melts to release the actuator latch and open vents. A new link is
required.
*If smoke vent is opened manually or thermally, the linear actuator must be reset and securely
re-latched to curb. This is accomplished by electrically opening to fully extend the linear
actuator so that the rotary latch engages.
3.
Electrical Open with Controller:
a.
Push OPEN button on controller, continuously hold until both doors stop
moving
4.
Electrical Open with signal (by others)
a.
Wire a 24VDC signal from a fire alarm, smoke detector, etc. into the control box
at the smoke vent level.
Close Smoke Vent
1.
Electrical Close:
a.
Push CLOSE button on controller, continuously hold until door limit stops
motion.
b.
Rotate the toggle switch to other door (A or B).
c.
Continuously push “Close” button on controller until door limit stops motion.
