4,000 - 5,000 cfm Ultra-Violet Duct Mounted Insert
for 99.9 % kill rate as calculated by Westinghouse formula March 1995

Duct section will be removed in field so as to fit complete new ducted UV lamp section into building return air HVAC system. Duct transition by others to fit 30" x 20" existing duct. NQE in duct UV lamp system will be 36" wide x 26" high and can vary in length from 36" long to 60" long so as to fit the existing ducting arrangement. Field measurement of all clearances will be required before final fabrication of the UV insert.

UV Duct Unit Specification

Lamps - will be ozone blocking quartz, 34" long and will emit germicidal radiation in the 253.7 nm wavelength, each tube will output a total radiation dosage of, 120 microwatt-seconds per cm squared at 1 meter.

Enclosure - fabricated of 20 gauge galvanized steel duct material, unpainted. Two 18" x 24" x 2" thick pleated 30% ASHRAE pre-filter to keep lamps clean. Unit to be hung according to SMACNA details. No holes in casing or hanger rod/frames will be provided by NQ.

Wiring - lamp sections will be prewired to a industry standard 4" x 4" x 2" electrical box mounted on the side opposite the access door.