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.

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:	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.
• Options:	A: Hard Wired ESD & ECO Inputs
	B: Intrinsically Safe ESD & ECO Inputs
	C: Intrinsically Safe ESD Input
	D: Intrinsically Safe ECO Input
	E: Excluded

Optional Wiring Methods

• Hard Wiring	Hard Wiring this option requires the use of conduit, seals and wiring or hazardous location rated cable
• Intrinsically Safe:	Intrinsically Safe Wiring this option allows the use of intrinsically safe cable approved for the location

Bebco offers an option to finish your Model WDP or RDP Whisper Drive™ Unit Housing with a highly resilient urethane sprayed, epoxy powder coated or custom finish of your choice. Custom finishes can be applied using the brand, color and application method of your preference!

These options enhance the corrosion resistance of all units and greatly extend their service lifespans, permit you to satisfy a stringent paint specification, or match the finish and color of a building paint scheme.

Bebco provides flexible protection and finish customization to meet your unique requirements!

Standard & Custom Housing Finishes
Custom Paint Finish for all Housing Parts
Provides specification compliance or matching finishes when essential to your application!

• Applications:	Mild to Severely Corrosive Environments Special Finish Requirements
• Options:	U: White Urethane Sprayed Finish
	P: White Epoxy Powder Coated Finish
	C: Custom Finish*

* Custom Finish must be specified at time of order to indicate paint types and brands, custom colors and application methods, including powder coating.