DMS-Series 3/4" Now Available! - Meets the Updated 2024 Uniform Mechanical Code for HVAC Condensate Removal and is ICC-Certified

FCN-Series Air-Trap™: Compact Residential/Lite Commercial Negative Pressure Waterless Trap - Perfect for Ductless Mini-splits
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Des Champs HVAC Air-Trap FCN-Series negative pressure commercial installation, an Air-Trap on both the main condensate drain pan line and secondary pan line.
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DesChamps HVAC Air-Trap FCN-Series indoor commercial installation in negative pressure orientation.
HVAC Air-Trap FCN-Series: Compact Negative Pressure HVAC Condensate Trap

FCN-Series Air-Trap™: Compact Residential/Lite Commercial Negative Pressure Waterless Trap - Perfect for Ductless Mini-splits

Regular price $25.95 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.

 Patented: US10775073B2 

Typically, HVAC equipment is fitted with “P” traps that require water, or another liquid, within a standpipe to prevent gas from entering or leaving the unit. As a result, the “P” traps are susceptible to freezing - expansion - bursting. At other times, the traps dry out allowing gas to escape or enter the HVAC equipment. The Air-Trap™ never requires addition of water to prevent unwanted air leakage.

HVAC Air-Trap FCN-Series Negative Pressure Waterless HVAC Condensate Trap - Perfect for Ductless Mini-splitsNegative Pressure Orientation

HVAC Air-Trap FCN-Series Negative Pressure Waterless HVAC Condensate Trap - Perfect for Ductless Mini-splitsPositive Pressure Orientation

 

Features
• Condensate flow up to 0.8 GPM at 2" negative pressure
• Schedule 40 PVC with easy maintenance, side clips to open the Air-Trap for cleaning
• Retains no water after condensing has ceased
• 3/4" internal slip or fitting (can connect to 1/2" via reducer coupling)
• Perfect for ductless mini-splits
• Meets general building codes. For use on HVAC equipment only. Not for use as a sanitary trap.
• Meets code IMC Section M307.2.4.1 for Ductless Mini-splits

HVAC Air-Trap FCN-Series Negative Pressure Waterless HVAC Condensate Trap - Perfect for Ductless Mini-splits

Specifications
Maximum negative pressure of WC:   5"
Maximum positive pressure of WC:   1/2"
Maximum Condensate Flow, GPM:     
     Any Negative Pressure: 0.8
     Positive Pressure: 0.04 at 0.5" WC
Length: 2.48"
Flammability rating is UL94 V-0
Air-Traps Meet IMC® Code Section M307.2.4.1


FCN-Series Operation

HVAC Air-Trap FCN-Series Negative Pressure Waterless HVAC Condensate Trap - Perfect for Ductless Mini-splits

When condensate IS NOT present, the ball sets tightly against the seat.

HVAC Air-Trap FCN-Series Negative Pressure Waterless HVAC Condensate Trap - Perfect for Ductless Mini-splits

When condensate IS present, water pressure moves the ball away from the seat.

HVAC Air-Trap FCN-Series Negative Pressure Waterless HVAC Condensate Trap - Perfect for Ductless Mini-splits

Clips must be installed correctly for trap to function properly

 

No More Troublesome "P" Traps
• The Air-Trap will never freeze and break
• No more issues caused by traps drying out
• Air-Trap is predesigned to prevent field errors
• Air-Trap reduces trap height by up to 60%
• Eliminates sludge build-up at bottom of “U” tube
• No more geysers when there is negative pressure
• Easy maintenance – use the side clips to open the Air-Trap for cleaning

•Perfect for Ductless Mini-splits

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

Customer Reviews

Based on 10 reviews
80%
(8)
0%
(0)
20%
(2)
0%
(0)
0%
(0)
R
Robert Vincent
Seems to be a good replacement for a standard trap

I ordered a FCN-series trap for my main AC drain line to replace a standard trap that had burst over the winter (AC is in the attic). I have not noticed any issues, trap filled with water, seems to drain as it should, and there has been no backup or strange occurrences. I only hope that come winter it drains enough water from the line that it will not burst like a standard trap (currently it sits water filled which makes sense since it's on the negative pressure side). I purchased the FCN series at the suggestion of the company, it seems to be overkill based on fluid flow but it seems more robust than the RLC series. I bought a RLC as well as a trap for my overflow/emergency drain side of the AC since I wouldn't expect it to be draining much or at all except in an upset situation.

g
gary bishop
Good - could be better

Appears to be a good solution. Could be better by: 1. replace center clips with a screw-on connection like a pvc union. would reduce/eliminate possibility of clips being pulled apart as mentioned in the installation instructions and 2. provide a way to clean on the upstream side of the 3/8" hole as debris could get struck there.

r
randall nelson
money saver

just paid 423$ hvac call for stopped up water trap on unit .
thought having paid for preventive maintence with hiller hvac that original p water trap would would not dry and clog during summer usage.. costly education

M
Mark Rapp

Works good

J
Juan Drouet / Elizabeth Flores
Hvac Air trap

Excellent it solved my problem with the splits

Customer Reviews

Based on 10 reviews
80%
(8)
0%
(0)
20%
(2)
0%
(0)
0%
(0)
R
Robert Vincent
Seems to be a good replacement for a standard trap

I ordered a FCN-series trap for my main AC drain line to replace a standard trap that had burst over the winter (AC is in the attic). I have not noticed any issues, trap filled with water, seems to drain as it should, and there has been no backup or strange occurrences. I only hope that come winter it drains enough water from the line that it will not burst like a standard trap (currently it sits water filled which makes sense since it's on the negative pressure side). I purchased the FCN series at the suggestion of the company, it seems to be overkill based on fluid flow but it seems more robust than the RLC series. I bought a RLC as well as a trap for my overflow/emergency drain side of the AC since I wouldn't expect it to be draining much or at all except in an upset situation.

g
gary bishop
Good - could be better

Appears to be a good solution. Could be better by: 1. replace center clips with a screw-on connection like a pvc union. would reduce/eliminate possibility of clips being pulled apart as mentioned in the installation instructions and 2. provide a way to clean on the upstream side of the 3/8" hole as debris could get struck there.

r
randall nelson
money saver

just paid 423$ hvac call for stopped up water trap on unit .
thought having paid for preventive maintence with hiller hvac that original p water trap would would not dry and clog during summer usage.. costly education

M
Mark Rapp

Works good

J
Juan Drouet / Elizabeth Flores
Hvac Air trap

Excellent it solved my problem with the splits