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Offshore Duty Wall & Remote Mount NFPA 496 Building Pressurization Units

Model WDP & RDP
Wall & Remote Mount NFPA 496
Building Pressurization Units

Optional Features

explosion-proof building pressurization units, hazardous location building pressurization units, classified area explosion proof building pressurization units

Emergency Remote Controls

Bebco Model WPD & RDP Units may feature hard wire or intrinsically safe inputs to permit remote control of Whisper Drive™ Units upon emergency conditions. These options include an Emergency Shutdown to deactivate both fans and an Emergency Control Override to fully engage both fans.

EMERGENCY SHUTDOWN CONTROL
This optional input is most often utilized to deactivate your Model WPD & RDP Whisper Drive™ Unit upon the suspicion or detection of combustible
gases entering the fresh air intake stack, which if unchecked would introduce this danger to your room or building. To implement this option, the
use of a combustible gas detector sensor, stack mounting bracket, combustible gas detection unit and power supply can be coupled with an
emergency shutdown operator wired in series to the Whisper Drive™ Unit. Our fail-safe circuitry ensures that any cause, including a broken
wire, gas detection or activation of the emergency shutdown operator will stop the Unit immediately, until safe conditions are restored.


EMERGENCY OVERRIDE CONTROL
This optional input is most often utilized in analyzer rooms or laboratories that contain a source of combustible gases, vapors or liquids.
This input causes both fans of your Model WPD & RDP Whisper Drive™ Unit to operate at full speed upon the suspicion or detection
of combustible gases being released into your room or building, which if unchecked would quickly create a growing danger.
This option is implemented by using a combustible gas sensor in the room or building, a combustible gas detection
unit and power supply and a hand-off-auto operator wired in series to the Whisper Drive™ Unit. Our fail-safe
circuitry then provides immediate emergency ventilation, until safe conditions are restored.



Click this image to learn more!
Emergency Remote Controls
Emergency Shutdown & Override Inputs
Provides ability to deactivate the Unit or make both fans run at full speed!

Optional Remote Inputs







Applications:





Options:
Provides protection against the introduction
of Combustible Gas through the fresh air
intake stack or the internal release of Combustible Gas within a room or
building from analytical systems
and laboratory hoods.

A:  Hard Wired ESD & ECO Inputs

B:  Intrinsically Safe ESD & ECO Inputs

C:  Intrinsically Safe ESD Input

D:  Intrinsically Safe ECO Input

X:  Excluded

Optional Wiring Methods





Hard Wiring



Intrinsically Safe:


Hard Wiring
this option requires the use of conduit, seals
and wiring or hazardous location rated cable

Intrinsically Safe Wiring
this option allows use of intrinsically safe
cable approved for the location




Bebco Environmental Controls Corporation
Physical Address: 4725 Lawndale Street, La Marque, Texas 77568
Mailing Address: P.O. Box 68 Hitchcock, Texas 77563
Phone: (844) 397-4822     |   Fax: (409) 935-5819
Office Hours:
 8 AM to 5 PM CST, Monday - Friday
Please visit this site for NFPA 496 UL Classified Enclosure Purging Systems:
Best Purging Systems Corporation

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