1-6 Ton Hazardous Classified Wall Mount Air Conditioners & Heat Pumps

Applications

  • Safe Havens
  • Guard Houses
  • Control Rooms
  • Utility Buildings
  • Security Centers
  • Analyzer Shelters
  • Laboratory Rooms
  • Switchgear Buildings

The rugged design of Bebco Model WAC & WHP Units make them an ideal solution for control rooms, analyzer shelters motor control centers, switchgear buildings and laboratories!

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CASE STUDIES

Motor Control Center

Surrounding Area:  Class 1, Division 2, Group C & D Hazardous Rating

Interior Space:  Declassified by NFPA 496 Pressurization

Bebco Solution:  1 Model WAC Unit & 1 Model WDP Pressurizer

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This Motor Control Center houses motor controls for a compressor station and contains a modest amount of equipment with a very low headload.  The Building is located in a Class I, Division 2 Group C and D rated area, so it is equipped with one Bebco Model WAC 2.5 Ton Hazardous Location Wall Mount Air Conditioner in a G2 configuration along with one Bebco Model WDP Building Pressurization Unit, to cool and declassify the interior space.

In tandem, the Air Conditioner, as furnished with ordinary location heating elements and the Pressurization Unit maintain a stable operating temperature year-round, while maintaining safe conditions fully compliant to NFPA 496.

Control Room

Surrounding Area:  Class 1, Division 2, Group B Hazardous Rating

Interior Space:  Declassified by NFPA 496 Pressurization

Bebco Solution:  2 Model WAC Units & 1 Model DUP Dual Unit Pressurizer

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This Control Room features a large operator workstation area along with a restroom and has a very nominal headload .  The Building serves a very essential purpose to refinery operation and is located in a Class I, Division 2 Group B rated area.  It is therefore equipped with two Bebco Model WAC 4 Ton Hazardous Location Wall Mount Air Conditioners in G2 configurations with ordinary location heating elements and a Bebco Model DUP Dual Unit Pressurization System.   

In addition, a wall mounted Bebco Control Panel automatically cycles the duty of both Units.  The Units then supply a common overhead air register duct as also provided by Bebco to distribute air evenly to all interior spaces. 

A safe, clean source of intake air is provided by a Bebco Model RPS Rigid Pipe Stack (not shown) and Bebco also provided all electrical power disconnects, as shown.  As a result, the climate and safety of this building are maintained consistently, by the use of these redundant Units.

Security Center

Surrounding Area:  Class 1, Division 2, Group C & D Hazardous Rating

Interior Space:  Declassified by NFPA 496 Pressurization

Bebco Solution:  1 Model WAC Unit with Integrated Pressurization System

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This Security Center features a video surveillance system, plant shutdown controls and security officer workstations along with a restroom and is located in a temperate climate area.  While it is positioned at an entry point of a chemical manufacturing plant unit, it’s proximity to a nearby unit led Safety Managers to deem it as Class I, Division 2 Group B rated area.  It is therefore equipped with one Bebco Model WAC 3 Ton Hazardous Location Wall Mount Air Conditioner in G2 configurations with ordinary location heating elements and an integrated Pressurization System.   

In addition, as shown in this dramatic image, the Pressurization System was furnished with a Bebco Series SPSA Spiral Pipe Stack Assembly, consisting of spiral pipe, a stack cap and our wind load certified Model SPSK Spiral Pipe Stanchion Kit, to eliminate the need for guywires.

The Unit features a Bebco Smart Grille™ with a Digital Thermostat and Remote Control, so security officers can adjust temperature from their workstations as needed, while sustaining constant vigilance and plant safety duties.

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Pump Station Switchgear & Control Room Building

Surrounding Area:  Class 1, Division 2, Group C & D Hazardous Rating

Control Room:  Declassified by NFPA 496 Pressurization

Switchgear Room:  Declassified by API 500 Ventilation System

Bebco Solution: 1 Model WAC Unit with Integrated Pressurization System for Control Room,
1 Model WMV Wall Mount Ventilation Fan & 1 Model VED Ventilation Exhaust Damper for Switchgear Room (not shown)

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This Pump Station Building features an interior wall to form a Control Room and Switchgear Room that are temperature regulated and protected by separate systems in a Class I, Division 2 Group C & D rated area.  The Control Room in the foreground features a Bebco Model WAC 3 Ton Hazardous Location Wall Mount Air Conditioners in a G2 configuration with ordinary location heating elements and an integrated Pressurization System that maintains safe room pressure and proper outward air velocity during egress, in accordance with NFPA 496 requirements.   

The Switchgear Room features a Bebco Model WMV Wall Mount Ventilation Far and Model VED Ventilation Exhaust Damper to provide continuous air circulation at a rate of 5 air changes per hour, in accordance with API 500 recommendations.

Intake air  for the integrated Pressurization System is provided by a Bebco Model SPK Spiral Pipe Stack Kit that draws air through a Stack Cap 20′ above the building, and the Stack’s Spiral Pipe is supported by a Bebco model CAGK Guy Wire Kit (not shown), as certified for local area wind-load.

Analyzer Shelters

Surrounding Atmosphere of all Shelters at final installation site:  Class 1, Division 2, Group C&D Hazardous Rating

Interior Space of Shelters with Spiral Pipe Stack in center of image:  Declassified by NFPA 496 Pressurization
Interior Spaces of Shelters without Spiral Pipe Stack in foreground and background of image: Class 1, Division 2, Group C&D Hazardous Rating

Bebco Solution: 1 each Model WAC Units with and without Integrated Pressurization Systems

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As this array of Analyzer Shelters undergo factory acceptance testing at a Gulf Coast Integrator’s facility, this image was captured to reflect the options provided by Bebco to satisfy two different protection methods.

The Analyzer Shelters in the foreground and background of this image feature Bebco Model WAC 3 Ton Units in a 22 Configuration that are ETL Listed for Surrounding Atmospheres and Interior Spaces with Class I, Division 2, Group A-D Hazardous Location Ratings.  These Analyzer Shelters will be installed in an area with a passive non-corrosive environment, so the Bebco WAC Units were provided with epoxy coated galvanized steel housings.

However, the three Analyzer Shelters in the center of the image feature Bebco Model WAC 2.5 Ton Units in a G2 Configuration that are ETL Listed for Surrounding Atmospheres with Class I, Division 2, Group A-D Hazardous Location Ratings, and feature integrated Pressurization Systems to declassify their Interior Spaces.  These Analyzer Shelter will be installed in an area with a highly corrosive environment so the Bebco WAC Units were provided with 316 stainless steel housings.

Beat the elements with superior corrosion resistance options!

Bebco Model WAC Air Conditioners and WHP Heat Pumps can provide a superior solution to applications in highly corrosive on-shore and off-shore locations.Options include 304 or 316 stainless steel cases and chassis, along with case and chassis finishes and refrigerant coil and tubing coatings.

Learn more on our Optional Features Page…