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• HCR Home Page
• Model AC Air Curtain
• Model CAC Conditioned Air Curtain & Model NPAC Negative Pressure Air Curtain
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  HCR Hybrid Doors
• Model DCAV Double Conditioned Air Vestibule
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• Model ECAV Frost-Free Airlok-Door™ & Model ASSD Fast-Acting Traffic Door
• Special Application Models
• HCR Air Door Options, Models, Warranty Information
• HCR Installation & Training Institute
• Cold Storage Doors
• Sound / Specialty Doors
• RFID / Industrial Portals
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Model CAC Conditioned Air Curtain

The Model CAC Air Curtain is for applications where temperatures and humidity exceed the limits of our Model AC.

Model NPAC Negative Pressure Air Curtain

The basic NPAC model is made to counteract the one-way flow-through forces caused by negative building pressure or by wind effects.

Computational Fluid Dynamics (CFD)

Using Computational Fluid Dynamic software, air flow patterns with HCR's Air Curtain are made visible. CFD software shows how the air is circulating and captured within the AC unit.

For an unprotected doorway, CFD shows cold air escaping from a freezer into a warmer anteroom.

Using a single air curtain, CFD shows how an air barrier is established and refrigeration loss eliminated.