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Des Champs Technologies
HVAC Air Trap Waterless HVAC Condensate Trap by Des Champs Technologies
DMS Series HVAC Air-Trap = Negative and/or Positive Pressure Waterless HVAC Condensate Trap by Des Champs Technologies
HVAC Air Trap Waterless Traps for HVAC Condensate Removal
HVAC Air-Trap Waterless HVAC Condensate Traps - Pressures and Sizes

P, N, RLC, FCN, PLP, DMS, Furnace Series and Venturi Lift System HVAC Air-Traps are Patented:

US9777957B1    US10775073B2    US11231203B1    US10605480B1    US11060786B1   US11808482B1

Maximum Pressures, Connection Sizes & Length

Testimonials

White Paper

It's Time to Reconsider the Use of P-Traps for HVAC Condensate Removal

by Nicholas H. Des Champs, Ph.D., PE, ASHRAE Fellow

It's Time to Reconsider the Use of P-Traps for HVAC Condensate Removal - HVAC Air-Trap Waterless Traps by Des Champs Technologies

Where to Buy

HVAC Air Trap Waterless Trap for HVAC Condensate Removal

Air-Traps Meet IMC® Code Section M307.2.4.1

RESIDENTIAL  •  COMMERCIAL  •  INDUSTRIAL  •  INSTITUTIONAL

HVAC Air-Trap Engineering and Product Catalog Download

HVAC Air-Trap

Engineering and Product Catalog

72 pages covering product information, IOMs, key drawings, maximum pressures and condensate flows, air leakage data and more.

Latest Additions

PBS Segment on HVAC Air-Trap

Recently updated, 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

• Prevents air leakage

• Reduces trap height requirement by 1/2

• Predesigned — eliminating field-designed errors

• Operates Dry — Eliminating:

    - Freezing and breaking

    - Dryouts

    - Sludge buildup

    - Geyser effect

    - Mold and mildew caused by geyser effect

Des Champs Technologies HVAC Air Trap ICC-ES Evaluated Report

Patented

The Air-Trap Concept

2024 Uniform Mechanical and Plumbing Codes - HVAC Air-Trap

Now Available!

Review of how HVAC Condensate Traps are to Function as set Forth in the 2024 Uniform Mechanical and Plumbing Codes


by Nicholas H. Des Champs, Ph.D., PE, ASHRAE Fellow

DMS-Series

Negative and/or Positive Pressure Waterless HVAC Condensate Trap

Max. negative pressure

Max. positive pressure of WC

Available connection sizes

Length

1 inch

5/8"

3/4" (25mm) | 5/8" ID Drain Hose

2.95 inches

P-Series

Positive Pressure Waterless Trap

N-Series

Negative / Positive Pressure Waterless Trap

PLP-Series

Positive Pressure, Low Profile 0 - 40" WC Waterless Trap

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RLC-Series

Residential / Lite Commercial Positive / Negative Pressure Waterless Trap

HVAC Air Trap - P Series - Positive Pressure Waterless Trap - Des Champs Technologies
HVAC Air Trap - N Series - Negative Pressure Waterless Trap - Des Champs Technologies
HVAC Air Trap - FCN Series - Compact Residential - Lite Commercial Negative Pressure Waterless Trap - Des Champs Technologies

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FCN-Series

Perfect for Ductless Mini-splits

Compact Residential / Lite Commercial Negative Pressure Waterless Trap

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DMS-Series

Negative and/or Positive Pressure Waterless Trap

HVAC Air Trap - RLC Series - Residential - Lite Commercial Positive / Negative Pressure Waterless Trap - Des Champs Technologies
DMS Series HVAC Air-Trap = Negative and/or Positive Pressure Waterless HVAC Condensate Trap by Des Champs Technologies
HVAC Air Trap - FCN Series - Compact Residential - Lite Commercial Negative Pressure Waterless Trap - Des Champs Technologies