UL PRODUCT CATEGORY

Leakage-rated Door Assemblies


See General Information for Leakage-rated Door Assemblies

CORNELL IRON WORKS INCR1422
Crestwood Industrial Park
24 ELMWOOD AVE
Mountain Top, PA 18707 USA

Leakage rated assemblies — Rolling Steel Fire Doors file R1422. Maximum size for rolling steel type doors is 57 ft wide by 25 ft in height with a maximum of 1200 ft2 in area.

The assembly consists of integral guides, anchors, a curtain, barrel assembly, automatic releasing mechanism and counter balance springs.

Gasketing — UL Classified Sealeze Therm-L-Brush or similar UL Classified Category "H" gasketing at head, sill and jambs.

Assemblies to be installed in accordance with the installation instructions provided with the door. See manufacturer's installation instructions for further details.

Series ERD 11, ERD 21, ERC11 and ERC21 may be suffixed with various letters and/or numbers.

Air leakage measurements.

Coil side in chamber

Pressure
(in. of WC)
Air Temp,
°F
Leakage
(cfm/sq ft)
Closing
Force, lb
Artificial
Bottom Seal
0.05 Ambient Less than 3.0 NA No
0.20 Ambient Less than 3.0 NA No
0.3 Ambient 3.58 NA No
0.3 Ambient Less than 3.0 NA Yes
0.05 400 Less than 3.0 NA No
0.20 400 Less than 3.0 NA No
0.30 400 Less than 3.0 NA No

Coil side out of chamber

Pressure
(in. of WC)
Air Temp,
°F
Leakage
(cfm/sq ft)
Closing
Force, lb
Artificial
Bottom Seal
0.05 Ambient Less than 3.0 NA No
0.20 Ambient Less than 3.0 NA No
0.3 Ambient 3.58 NA No
0.3 Ambient Less than 3.0 NA Yes
0.05 400 Less than 3.0 NA No
0.20 400 Less than 3.0 NA No
0.30 400 Less than 3.0 NA No

Leakage Rated Assembly — Rolling Steel Fire Door Model PRSD-361 . Maximum size for this model is 12 ft wide by 10 ft in height.

The assembly consists of integral guides, anchors, a curtain, barrel assembly, automatic releasing mechanism and counter balance springs.

Gasketing — UL Classified Sealeze Therm-L-Brush or similar UL Classified Category "H" gasketing at head, sill and jambs.

Assemblies to be installed in accordance with the installation instructions provided with the door. See manufacturer's installation instructions for further details.

Model PRSD-361 may be suffixed with various letters and/or numbers.

Air leakage measurements.

Coil side in chamber

Pressure
(in. of WC)
Air Temp,
°F
Leakage
(cfm/sq ft)
Closing
Force, lb
Artificial
Bottom Seal
0.05 Ambient 0.98 NA No
0.10 Ambient 1.96 NA No
0.05 400 1.64 NA No
0.10 400 2.76 NA No
Last Updated on 2018-08-13
OPBW.R1422 R1422 OPBW 291021001 LISTING Active 20180813 20180813

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