RLC-Series Air-Trap™: Residential/Lite Commercial Negative/Positive Waterless Trap
Regular price
$30.00
Sale
Volume Pricing is Available - Please email info@waterless-trap.com for a discount code.
Never Freezes - Never “Dries” Out!
The Air-Trap™ allows liquid condensate to drain from the HVAC equipment and simultaneously prevents air from entering or escaping from the equipment.
Des Champs Technologies, LLC has recently introduced the versatile RLC Series HVAC Air-Trap. The HVAC Air-Trap uses the air pressure generated by the fan, or gravity, to prevent air leakage from or to the air handler. The RLC Series can accommodate PVC drain pipe sizes from ½" to 2" and up to 40 tons of refrigeration.
When oriented in the horizontal position it can accommodate essentially any HVAC unit negative plenum pressure and requires less than half the installation height of a standard P-trap. The lower height allows ease of installation and in many cases, reduces curb height requirements or in some cases eliminates the need for a curb. In addition, the RLC Series eliminates the following issues associated with the P-trap:
- Never requires priming or filling with water
- Since it operates dry when there is no condensate being produced, the trap and the drain line leading to the trap will not freeze
- There will be no geyser effect within the HVAC unit at the beginning of cooling season as is common with a dry P-trap
- Because the trap operates dry when no condensate is flowing there will be no accumulation of sludge
- The HVAC Air-Trap is predesigned so errors caused by field designed P-traps are eliminated



- Condensate flow up to 4 GPM at any negative pressure
- Schedule 40 PVC with clean out port
- Retains no water after condensing has ceased
- ¾” slip internal or 1” fitting external connection - with bushings can connect to ½, 1 ¼, 1 ½ and 2” tubes
- Meets general building codes. For use on HVAC equipment only.

- Up to 3-inches positive pressure
- Up to 0.5 GPM water flow (≈ 40 tons)
Not for use as a sanitary trap.
Note: The attached drawings represent traps that operate under positive pressure. Never connect condensate drain directly to a sanitary drain line.
Flammability rating is UL94 V-0
Videos:
RLC-Series Positive/Negative Orientation Animation
An animation detailing RLC-Series concept for a positive pressure and negative pressure installation.
The Air-Trap™ concept has been incorporated into IAPMO IGC 196-2018 Standard for Condensate Traps and Overflow Switches for Air-Conditioning Systems.