Description

 -Fan shall be a spun aluminum, roof mounted downblast centrifugal exhaust vent.

 Construction

-Fan shall be of bolted and welded construction utilizing corrosion resistant fasteners. The spun aluminum structural components shall be constructed of minimum 16 gauge marine alloy aluminum, bolted to a rigid aluminum support structure. The aluminum base shall have continuously welded curb cap corners for maximum leak. The discharge baffle shall have a rolled bead for added strength. An integral conduit chase shall be provided through the curb cap and into the motor compartment to facilitate wiring connections.

 Motor

-shall be heavy duty type with permanently lubricated sealed bearing and furnished at the specified voltage, phase and enclosure. Motor shall be a NEMA “B”, class “B” insulation rated for continuous duty.

 Bearings

-shall be designed and individually tested specifically for use in air handling applications. Construction shall be heavy duty regreasable ball type in a cast iron pillow block housing selected for a minimum L50 life in excess of 200,000 hours

Model- 120C4B

HP- 1/3

RPM-1669

Tip Speed- 5243

Sones @ .25″- 13.8

0″ SP- 1788

.125″SP- 1729

.25″SP- 1668

.375″SP-1606

.50″SP-1541

.75″SP-1413