P, N, RLC, FCN, PLP, Furnace Series and Venturi Lift System HVAC Air-Traps are Patented:
Positive Pressure Waterless Trap
Maximum Pressures, Connection Sizes & Length
It's Time to Reconsider the Use of P-Traps for HVAC Condensate Removal
by Nicholas H. Des Champs, Ph.D., PE, ASHRAE Fellow
Air-Traps Meet IMC® Code Section M307.2.4.1
RESIDENTIAL • COMMERCIAL • INDUSTRIAL • INSTITUTIONAL
Engineering and Product Catalog
Introducing the new HVAC Air-Trap Product & Engineering Catalog. 72 pages covering product information, IOMs, key drawings, maximum pressures and condensate flows, air leakage data and more.
PBS Segment on HVAC Air-Trap
A 7+ minute PBS segment on the HVAC Air-Trap that is currently airing.
Customer Air-Trap Installations
A video montage of HVAC Air-Trap installations over the years.
Des Champs HVAC Air-Trap™ waterless traps allow liquid condensate to drain from the HVAC equipment and simultaneously prevent air from entering or escaping from the equipment.
Solves Common Issues Associated with Standard P-traps
Negative / Positive Pressure Waterless Trap
Residential / Lite Commercial Positive / Negative Pressure Waterless Trap
Perfect for Ductless Mini-splits
Compact Residential / Lite Commercial Negative Pressure Waterless Trap
Positive Pressure, Low Profile 0 - 40" WC Waterless Trap
• Prevents air leakage
• Reduces trap height requirement by 1/2
• Predesigned — eliminating field-designed errors
• Operates Dry — Eliminating:
- Freezing and breaking
- Sludge buildup
- Geyser effect
- Mold and mildew caused by geyser effect
The Air-Trap Concept