HVAC Air-Trap RLC Series - Waterless HVAC Condensate Trap - Des Champs Technologies

RLC-Series Air-Trap™: Residential/Lite Commercial Negative/Positive Waterless HVAC Condensate Trap

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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

RLC-Series HVAC Air-Trap™ - Negative/Positive Pressure Waterless Trap allows liquid condensate to drain from the HVAC equipment and simultaneously prevents air from entering or escaping from the equipment.

When the unit fan is blowing through the cooling coil the drain pan is under positive pressure. Under these conditions the RLC Series is oriented in the vertical position. In the positive pressure mode the maximum pressure in the unit plenum is 3 inches WC. All of the beneﬁts listed above are present when operating in the positive pressure mode plus the blow through that occurs on a dry P-trap is eliminated.

Negative Pressure - Orientation is Horizontal

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.

Positive Pressure - Orientation is Vertical

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.

ICC-ES Evaluated

Click to view the PMG-1967 full report from ICC Evaluation Service, LLC

https://www.iapmomembership.org

The Air-Trap™ concept has been incorporated into IAPMO IGC 196-2018 Standard for Condensate Traps and Overflow Switches for Air-Conditioning Systems.

No more bad smells

The condensate drain from our air handler in the attic (new heat pump) kept drying out when using the heat. The inadequate p-trap was buried some place in the wall below it and would regularly dry out permitting sewer gas to be sucked into the system. The solution, one that the “professionals” were not aware of, was the Air-Trap. Installation was simple, and the result was excellent.

Water trap confusion

Very happy with the results. No more worry about p trap drying out.

Works great, but if your HVAC setup is like mine...

The trap is high quality and was super easy to install exactly as advertised. With that, my HVAC has a positive pressure condensate drain, and the water stopped draining out the line if there was NOT a decent airflow coming out the P-trap vent stack (i.e. - wasting conditioned air). I solved the problem by looping the vented air back to the intake (return) plenum via 3/4" PVC. With that, water only drains out the RLC, and any "wasted" air is saved by recycling through the blower.

quick delivery; concept makes sense

received shipment within 2 days from placing order. Installation was straight forward. Trap appears to be well made and functions as described.

So simple, yet so effective

I originally purchased one for my furnace in the attic. I live in the North East and was tired of dealing with a P-trap. It worked flawlessly and I liked it so much I purchased a second one for my basement furnace.

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