Specification Sheet

278
2 year fan housing warranty, 1 year motor warranty
Motor
National brands with
local service. Standard
motors are heavy-duty
open drip-proof. Other
options available.
All Aluminum
Centrifugal Wheel
Non-overloading,
backward inclined tapered
blades for maximum
efciency and minimum
sound.
Drives
Sized for a minimum
150% of motor
horsepower. Drives are
variable pitch as standard
through 7-1/2 HP.
Bearings
Heavy-duty, ball bearing
cast pillow blocks are
designed for minimum
200,000 hours of
operation, L50.
R
®
AIR
MOVEMENT
AND CONTROL
ASSOCIATION
INTERNATIONAL, INC.
AIR
PERFORMANCE
SOUND
and
Integral Inlet and
Outlet Flanges
With mounting holes.
Extended Lubrication
Lines
Extend from bearings to
the outside of the unit.
STANDARD CONSTRUCTION FEATURES
Housing
Heavy-gauge rolled steel
with continuous welded
seam and epoxy coating
for maximum strength.
Factory Run & Tested
For quality assurance and
dependable operation.
AMCA Seal
Assures certied
rating of air and sound
performance.
cULus 705 Listed
For electrical reliability.
Mounting Supports
Eight (8) mounting
supports are welded
to each fan to allow for
universal mounting.
Motor Base
Adjustable steel motor
base is designed for
strength and ease of belt
tensioning.
Model CTB